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4540 Commits

Author SHA1 Message Date
Chris Lattner
c19d5621ae Sparcv9 gets no operand info 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@22909 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-08-19 16:56:56 +00:00
Duraid Madina
a91103430b a bugfix (up top) and a quick repair job: disable generation of dep.z 
(which died about a week ago) so we're back to load-(2^n-1)-then-AND
sequences. slow, but things should now be Almost Completely Working,
modulo those pesky alignment/ABI issues.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@22904 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-08-19 13:25:50 +00:00
Nate Begeman
27d53ba6dd Fix a bug where we were passing the wrong number of arguments to an 
instruction.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@22901 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-08-19 03:42:28 +00:00
Chris Lattner
80132a4b48 mark variable arity instructions as such. Alpha wins the battle for 
cleanest backend in this metric :)


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@22893 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-08-19 00:51:37 +00:00
Chris Lattner
efc58be8ca Mark some instructions as variable_ops, and PSEUDO_ALLOC as taking a GPR. 
I'm not convinced this is all of them,  but I can't do much testing, because
IA64 LLC crashes on big programs :(


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@22892 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-08-19 00:47:42 +00:00
Chris Lattner
9d9dc816d0 add a few missing cases 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@22891 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-08-19 00:41:29 +00:00
Chris Lattner
b822abade7 Give ADJCALLSTACKDOWN/UP the correct operands. 
Give a whole bunch of other stuff variable operands, particularly FP.  The
FP stackifier is playing fast and loose with operands here, so we have to
mark them all as variable.  This will have to be fixed before we can dag->dag
the X86 backend.  The solution is for the pre-stackifier and post-stackifier
instructions to all be disjoint.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@22890 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-08-19 00:38:22 +00:00
Nate Begeman
02b88a4586 ISD::OR, and it's accompanying SelectBitfieldInsert 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@22889 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-08-19 00:38:14 +00:00
Chris Lattner
679c408768 The variable SAR's only take one operand too 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@22888 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-08-19 00:31:37 +00:00
Chris Lattner
fd444b2a69 Stop adding bogus operands to variable shifts on X86. These instructions 
only take one operand.  The other comes implicitly in through CL.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@22887 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-08-19 00:16:17 +00:00
Nate Begeman
73bfa71524 Remove the X86 and PowerPC Simple instruction selectors; their time has 
passed.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@22886 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-08-18 23:53:15 +00:00
Nate Begeman
c15ed447f4 Add shifts. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@22884 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-08-18 23:38:00 +00:00
Chris Lattner
45fcb8f410 Fix operand numbers by marking variable arity nodes as such and by fixing 
the operand lists of a few other nodes.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@22883 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-08-18 23:25:33 +00:00
Chris Lattner
3f852b45fc MFLR doesn't take an operand, the LR register is implicit 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@22882 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-08-18 23:24:50 +00:00
Chris Lattner
329cdc3801 Add a new flag 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@22881 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-08-18 23:17:07 +00:00
Chris Lattner
0bc04231c0 Move this to the emitter 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@22877 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-08-18 20:08:53 +00:00
Jim Laskey
5b5f0b7fd5 More optimal solution for loading constants. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@22870 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-08-18 18:58:23 +00:00
Chris Lattner
d607c12e8e After selecting the instructions for a basic block, emit the instructions 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@22869 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-08-18 18:46:06 +00:00
Chris Lattner
f5fac3b4a6 remove some unused stuff 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@22866 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-08-18 18:34:00 +00:00
Nate Begeman
58dfb08319 Fix int foo() { return 65535; } by using the top 16 bits of the constant 
as the argument to LIS rather than the result of HA16(constant).

The DAG->DAG ISel was already doing the right thing.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@22865 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-08-18 18:14:49 +00:00
Nate Begeman
a694047813 Improve ISD::Constant codegen. 
Now for int foo() { return -1; } we generate:
_foo:
        li r3, -1
        blr

instead of
_foo:
        lis r2, -1
        ori r3, r2, 65535
        blr


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@22864 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-08-18 18:01:39 +00:00
Chris Lattner
0c09a411e0 replace switch stmt with an assert, generate li 0 instead of lis 0 for 0, 
to make the code follow people's expectations better.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@22861 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-08-18 17:16:52 +00:00
Jim Laskey
3285aadce9 Handle loading of 0x????0000 constants with a single instruction. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@22858 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-08-18 15:52:30 +00:00
Nate Begeman
cffc32b6e2 Add support for ISD::AND, and its various optimized forms. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@22857 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-08-18 07:30:46 +00:00
Nate Begeman
131a880520 Maintain consistency in negating things 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@22855 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-08-18 05:44:50 +00:00
Nate Begeman
0f3257a330 Implement XOR, remove a broken sign_extend_inreg case 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@22854 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-08-18 05:00:13 +00:00
Nate Begeman
305a1c75cf Add a bunch more simple nodes. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@22851 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-08-18 03:04:18 +00:00
Nate Begeman
6a7d61179c Add a couple more nodes that are easy to handle 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@22850 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-08-18 00:53:47 +00:00
Nate Begeman
b5a0668d43 Be fruitful and multiply! 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@22849 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-08-18 00:21:41 +00:00
Jim Laskey
b454cfd453 Better version of isIntImmediate. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@22848 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-08-18 00:15:15 +00:00
Nate Begeman
26653500bb Teach the DAG->DAG ISel about FNEG, and how it can be used to invert 
several of the PowerPC opcodes that come in both negated and non-negated
forms.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@22845 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-08-17 23:46:35 +00:00
Jim Laskey
b8df7c2213 Promote dependency for MathExtras.h out of Constants.h. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@22839 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-08-17 20:04:34 +00:00
Jim Laskey
cb6682fa44 Culling out use of unions for converting FP to bits and vice versa. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@22838 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-08-17 19:34:49 +00:00
Chris Lattner
8482dd894d add a beta option for turning on dag->dag isel 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@22837 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-08-17 19:33:30 +00:00
Chris Lattner
a5a91b1026 initial hack at a dag->dag instruction selector. This is obviously woefully 
incomplete, but it is a start.  It handles basic argument/retval stuff, immediates,
add and sub.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@22836 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-08-17 19:33:03 +00:00
Chris Lattner
d1c4626e14 add prototype, remove dead proto 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@22835 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-08-17 19:32:03 +00:00
Chris Lattner
9d6c45bdd7 Fix some bugs in the alpha backend, some of which I introduced yesterday, 
and some that were preexisting.  All alpha regtests pass now.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@22829 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-08-17 17:08:24 +00:00
Chris Lattner
6d9aed4f8f Fix a few small typos I noticed when converting this over to the DAG->DAG 
selector.  Also, there is no difference between addSImm and addImm, so just
use addImm, folding some branches.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@22819 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-08-17 01:25:14 +00:00
Jim Laskey
a033b4d8eb Removed UINT_TO_FP and SINT_TO_FP from ISel outright. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@22818 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-08-17 01:14:38 +00:00
Andrew Lenharth
035b8abdab thinko. Should fix s4addl.ll regression 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@22817 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-08-17 00:47:24 +00:00
Jim Laskey
361ca5c927 Remove ISel code generation for UINT_TO_FP and SINT_TO_FP. Now asserts if 
marked as legal.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@22816 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-08-17 00:41:40 +00:00
Jim Laskey
ad23c9d4f2 Make UINT_TO_FP and SINT_TO_FP use generic expansion. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@22815 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-08-17 00:40:22 +00:00
Nate Begeman
456f1e890c Implement a couple improvements: 
Remove dead code in ISD::Constant handling
Add support for add long, imm16

We now codegen 'long long foo(long long a) { return ++a; }'
as:
addic r4, r4, 1
addze r3, r3
blr

instead of:
li r2, 1
li r5, 0
addc r2, r4, r2
adde r3, r3, r5
blr


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@22811 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-08-17 00:20:08 +00:00
Chris Lattner
a8cd01524f updates for changes in nodes 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@22808 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-08-16 21:58:15 +00:00
Chris Lattner
707ebc5dd6 update the backends to work with the new CopyFromReg/CopyToReg/ImplicitDef nodes 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@22807 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-08-16 21:56:37 +00:00
Nate Begeman
7cbd525ba8 Implement BR_CC and BRTWOWAY_CC. This allows the removal of a rather nasty 
fixme from the PowerPC backend.  Emit slightly better code for legalizing
select_cc.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@22805 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-08-16 19:49:35 +00:00
Chris Lattner
7c5a3d390a Pull the LLVM -> DAG lowering code out of the pattern selector so that it 
can be shared with the DAG->DAG selector.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@22799 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-08-16 17:14:42 +00:00
Chris Lattner
b0096bd19d Turn loop strength reduction on by default. 
Only run createLowerConstantExpressionsPass for the simple isel.  The DAG
isel has no need for it.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@22794 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-08-15 23:47:04 +00:00
Jim Laskey
ea0617a023 Broke 80 column rule. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@22792 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-08-15 17:35:26 +00:00
Jim Laskey
30679e691d Changed code gen for int to f32 to use rounding. This makes FP results 
consistent with gcc.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@22791 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-08-15 17:14:19 +00:00
Andrew Lenharth
d228427f87 isIntImmediate is a good Idea. Add a flavor that checks bounds while it is at it 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@22790 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-08-15 14:31:37 +00:00
Nate Begeman
2d56e72f09 Fix last night's PPC32 regressions by 
1. Not selecting the false value of a select_cc in the false arm, which
   isn't legal for nested selects.
2. Actually returning the node we created and Legalized in the FP_TO_UINT
   Expander.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@22789 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-08-14 18:38:32 +00:00
Nate Begeman
889f2c1acf Fix last night's X86 regressions by putting code for SSE in the if(SSE) 
block.  nur.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@22788 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-08-14 18:37:02 +00:00
Nate Begeman
875f360e22 Fix FP_TO_UINT with Scalar SSE2 now that the legalizer can handle it. We 
now generate the relatively good code sequences:
unsigned short foo(float a) { return a; }
_foo:
        movss 4(%esp), %xmm0
        cvttss2si %xmm0, %eax
        movzwl %ax, %eax
        ret

and
unsigned bar(float a) { return a; }
_bar:
        movss .CPI_bar_0, %xmm0
        movss 4(%esp), %xmm1
        movapd %xmm1, %xmm2
        subss %xmm0, %xmm2
        cvttss2si %xmm2, %eax
        xorl $-2147483648, %eax
        cvttss2si %xmm1, %ecx
        ucomiss %xmm0, %xmm1
        cmovb %ecx, %eax
        ret


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@22786 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-08-14 04:36:51 +00:00
Nate Begeman
5a01481585 Make FP_TO_UINT Illegal. This allows us to generate significantly better 
codegen for FP_TO_UINT by using the legalizer's SELECT variant.

Implement a codegen improvement for SELECT_CC, selecting the false node in
the MBB that feeds the phi node.  This allows us to codegen:
void foo(int *a, int b, int c) { int d = (a < b) ? 5 : 9; *a = d; }
as:
_foo:
        li r2, 5
        cmpw cr0, r4, r3
        bgt .LBB_foo_2  ; entry
.LBB_foo_1:     ; entry
        li r2, 9
.LBB_foo_2:     ; entry
        stw r2, 0(r3)
        blr

insted of:
_foo:
        li r2, 5
        li r5, 9
        cmpw cr0, r4, r3
        bgt .LBB_foo_2  ; entry
.LBB_foo_1:     ; entry
        or r2, r5, r5
.LBB_foo_2:     ; entry
        stw r2, 0(r3)
        blr


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@22784 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-08-14 01:17:16 +00:00
Nate Begeman
8f331325a2 Remove support for 64b PPC, it's been broken for a long time. It'll be 
back once a DAG->DAG ISel exists.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@22778 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-08-13 05:59:16 +00:00
Jim Laskey
cf083e312c Fix for 2005-08-12-rlwimi-crash.ll. Make allowance for masks being shifted to 
zero.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@22773 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-08-12 23:52:46 +00:00
Jim Laskey
847c3a976b 1. This changes handles the cases of (~x)&y and x&(~y) yielding ANDC, and 
(~x)|y and x|(~y) yielding ORC.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@22771 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-08-12 23:38:02 +00:00
Andrew Lenharth
1f3e808ebf match gcc's use of tabs, makes diffs easier 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@22764 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-08-12 16:14:08 +00:00
Andrew Lenharth
21e786bdb4 .section cleanup, patch from Nicholas Riley 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@22763 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-08-12 16:13:43 +00:00
Jim Laskey
191cf943e6 1. Added the function isOpcWithIntImmediate to simplify testing of operand with 
specified opcode and an integer constant right operand.

2. Modified ISD::SHL, ISD::SRL, ISD::SRA to use rlwinm when applied after a mask.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@22761 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-08-11 21:59:23 +00:00
Chris Lattner
2b48bc6f95 Tidied up the use of dyn_cast<ConstantSDNode> by using isIntImmediate more. 
Patch by Jim Laskey.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@22760 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-08-11 17:56:50 +00:00
Chris Lattner
54abfc5ee4 Use a more efficient method of creating integer and float virtual registers 
(avoids an extra level of indirection in MakeReg).

  defined MakeIntReg using RegMap->createVirtualRegister(PPC32::GPRCRegisterClass)
  defined MakeFPReg using RegMap->createVirtualRegister(PPC32::FPRCRegisterClass)

  s/MakeReg(MVT::i32)/MakeIntReg/
  s/MakeReg(MVT::f64)/MakeFPReg/

Patch by Jim Laskey!


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@22759 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-08-11 17:15:31 +00:00
Nate Begeman
c24d484b78 Make SELECT illegal on PPC32, switch to using SELECT_CC, which more closely 
reflects what the hardware is capable of.  This significantly simplifies
the CC handling logic throughout the ISel.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@22756 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-08-10 20:52:09 +00:00
Chris Lattner
b4138c475e Changes for PPC32ISelPattern.cpp 
1. Clean up how SelectIntImmediateExpr handles use counts.
2. "Subtract from" was not clearing hi 16 bits.

Patch by Jim Laskey


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@22754 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-08-10 18:11:33 +00:00
Chris Lattner
df706e3f0c Changed the XOR case to use the isOprNot predicate. 
Patch by Jim Laskey!


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@22750 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-08-10 16:35:46 +00:00
Chris Lattner
0d7d99fd44 1. Refactored handling of integer immediate values for add, or, xor and sub. 
New routine: ISel::SelectIntImmediateExpr
  2. Now checking use counts of large constants.  If use count is > 2 then drop
  thru so that the constant gets loaded into a register.
  Source:

int %test1(int %a) {
entry:
       %tmp.1 = add int %a,      123456789      ; <int> [#uses=1]
       %tmp.2 = or  int %tmp.1,  123456789      ; <int> [#uses=1]
       %tmp.3 = xor int %tmp.2,  123456789      ; <int> [#uses=1]
       %tmp.4 = sub int %tmp.3, -123456789      ; <int> [#uses=1]
       ret int %tmp.4
}

Did Emit:

       .machine ppc970


       .text
       .align  2
       .globl  _test1
_test1:
.LBB_test1_0:   ; entry
       addi r2, r3, -13035
       addis r2, r2, 1884
       ori r2, r2, 52501
       oris r2, r2, 1883
       xori r2, r2, 52501
       xoris r2, r2, 1883
       addi r2, r2, 52501
       addis r3, r2, 1883
       blr


Now Emits:

       .machine ppc970


       .text
       .align  2
       .globl  _test1
_test1:
.LBB_test1_0:   ; entry
       lis r2, 1883
       ori r2, r2, 52501
       add r3, r3, r2
       or r3, r3, r2
       xor r3, r3, r2
       add r3, r3, r2
       blr

Patch by Jim Laskey!


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@22749 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-08-10 16:34:52 +00:00
Duraid Madina
d2ff5ef654 sorry!! this is temporary; for some reason the nasty constmul code seems to 
be an infinite loop when using g++-4.0.1*, this kills the ia64 nightly
tester. A proper fix shall be forthcoming!!! thanks for not killing me. :)


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@22748 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-08-10 12:38:57 +00:00
Chris Lattner
979a21e766 Fix a bug compiling: select (i32 < i32), f32, f32 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@22747 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-08-10 03:40:09 +00:00
Chris Lattner
c7e18a10d4 add a optimization note 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@22732 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-08-09 22:30:57 +00:00
Chris Lattner
88ac32ca26 Update the targets to the new SETCC/CondCodeSDNode interfaces. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@22729 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-08-09 20:21:10 +00:00
Chris Lattner
59b21c25d4 Minor cleanup patch, no functionality changes. Written by Jim Laskey. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@22727 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-08-09 18:29:55 +00:00
Chris Lattner
2f46055cc2 Fix CodeGen/Generic/div-neg-power-2.ll, a regression from last night. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@22726 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-08-09 18:08:41 +00:00
Nate Begeman
d3ded2d8a7 Factor out some common code, and be smarter about when to emit load hi/lo 
code sequences.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@22719 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-08-08 22:22:56 +00:00
Chris Lattner
0045776d33 Remove getImmediateForOpcode, which is now dead. 
Patch by Jim Laskey.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@22716 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-08-08 21:34:13 +00:00
Chris Lattner
fd78454477 Add new immediate handling support for mul/div. 
Patch by Jim Laskey!


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@22715 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-08-08 21:33:23 +00:00
Chris Lattner
5b90917400 Add support for OR/XOR/SUB immediates that are handled with the new immediate 
way.  This allows ORI/ORIS pairs, for example.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@22714 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-08-08 21:30:29 +00:00
Chris Lattner
2f57c4da21 Modify the ISD::AND opcode case to use new immediate constant predicates. 
Includes wider support for rotate and mask cases.

Patch by Jim Laskey.

I've requested that Jim add new regression tests the newly handled cases.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@22712 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-08-08 21:24:57 +00:00
Chris Lattner
39c6896d22 Modify the ISD::ADD opcode case to use new immediate constant predicates. 
Includes support for 32-bit constants using addi/addis.

Patch by Jim Laskey.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@22711 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-08-08 21:21:03 +00:00
Chris Lattner
8fd1980ce6 Modify existing support functions to use new immediate constant predicates. 
Patch by Jim Laskey


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@22710 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-08-08 21:12:35 +00:00
Chris Lattner
cf1cf1886e Add support predicates for future immediate constant changes. 
Patch by Jim Laskey


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@22709 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-08-08 21:10:27 +00:00
Chris Lattner
02efa6c140 Move IsRunOfOnes to a more logical place and rename to a proper predicate form 
(lowercase isXXX).

Patch by Jim Laskey.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@22708 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-08-08 21:08:09 +00:00
Nate Begeman
394cd13ba3 Fix JIT encoding of ppc mfocrf instruction; the operands were reversed 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@22707 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-08-08 20:04:52 +00:00
Chris Lattner
3c304a3ba1 Consolidate the GPOpt stuff to all use the Subtarget, instead of still 
depending on the command line option.  Now the command line option just
sets the subtarget as appropriate.  G5 opts will now default to on on
G5-enabled nightly testers among other machines.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@22688 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-08-05 22:05:03 +00:00
Chris Lattner
8c4a8735ec adjust to change in getSubtarget() api 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@22687 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-08-05 21:54:27 +00:00
Chris Lattner
ba25365140 Enable gp optimizations by default when available, even when a target triple 
is available, since the target triple doesn't specify whether to use gpopts
or not.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@22685 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-08-05 21:25:13 +00:00
Chris Lattner
6281ae4bf0 add a note 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@22681 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-08-05 19:18:32 +00:00
Chris Lattner
4e624ecd07 don't crash when running the PPC backend on non-ppc hosts without specifying 
a subtarget.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@22677 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-08-05 16:17:22 +00:00
Nate Begeman
99558806f8 Hack to naturally align doubles in the constant pool. Remove this once we 
know what The Right Thing To Do is.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@22660 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-08-04 21:04:09 +00:00
Nate Begeman
3d72d14887 Use the new subtarget support to automatically choose the correct ABI 
and asm printer for PowerPC if one is not specified.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@22659 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-08-04 20:49:48 +00:00
Andrew Lenharth
3f55a4fcab No, IDEFs shouldn't be JITed 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@22648 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-08-04 15:32:36 +00:00
Nate Begeman
8c00f8cdc7 Add Subtarget support to PowerPC. Next up, using it. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@22644 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-08-04 07:12:09 +00:00
Nate Begeman
1c73c7be9d Scalar SSE: load +0.0 -> xorps/xorpd 
Scalar SSE: a < b ? c : 0.0 -> cmpss, andps
Scalar SSE: float -> i16 needs to be promoted


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@22637 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-08-03 23:26:28 +00:00
Andrew Lenharth
dc7c0b8c22 Alpha ABI specifies stack is always 16 byte alligned, and gcc does it, so I will too 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@22634 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-08-03 22:33:21 +00:00
Misha Brukman
0a3f677f09 Fix grammar: apostrophe-s ('s) is possessive, not plural; also iff vs. if. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@22619 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-08-03 17:29:52 +00:00
Chris Lattner
a34cbcc50a minor capitalization thing, patch by Jim Laskey 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@22617 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-08-03 16:52:22 +00:00
Chris Lattner
9e17df80ca one more hunk that got dropped 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@22596 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-08-02 19:35:29 +00:00
Chris Lattner
c0d590b6f2 This hunk accidentally got dropped. Patch by Jim Laskey 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@22595 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-08-02 19:30:55 +00:00
Chris Lattner
0561b3ff9f Update to use the new MathExtras.h support for log2 computation. 
Patch contributed by Jim Laskey!


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@22594 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-08-02 19:26:06 +00:00
Chris Lattner
3f270130b5 add a pass name to make debugging dumps nicer 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@22588 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-08-02 19:07:49 +00:00
Andrew Lenharth
5bca0da936 update function codes to reflect /su flags that have been added since this was written 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@22571 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-08-01 20:06:01 +00:00
Andrew Lenharth
01c8f6e452 use llabs not abs 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@22569 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-08-01 17:47:28 +00:00
Jeff Cohen
d29b6aa608 Keep tabs and trailing spaces out. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@22565 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-07-30 18:33:25 +00:00
Chris Lattner
a88da08c6e fix a typeo 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@22561 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-07-30 00:43:00 +00:00
Chris Lattner
a35e1dfd12 Change the fp to integer code to not perform 2-byte stores followed by 
1 byte loads and other operations.  This is bad for store-forwarding on
common CPUs.  We now do this:

fnstcw WORD PTR [%ESP]
mov %AX, WORD PTR [%ESP]

instead of:

fnstcw WORD PTR [%ESP]
mov %AL, BYTE PTR [%ESP + 1]


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@22559 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-07-30 00:17:52 +00:00
Chris Lattner
01546c5d50 Use a custom expander for all FP to int conversions, as the X86 only has 
FP-to-int-in-memory: this exposes the load from the stored slot to the
selection dag, allowing it to be folded into other operaions.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@22556 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-07-30 00:05:54 +00:00
Andrew Lenharth
422f3d58a8 turn off GOT on archs that didn't use it (not that it appeard to harm them much with it on) 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@22553 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-07-29 23:32:02 +00:00
Chris Lattner
5d06b8caae Implement a FIXME: move a bunch of cruft for handling FP_TO_*INT operations 
that the X86 does not support to the legalizer.  This allows it to be better
optimized, etc, and will help with SSE support.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@22551 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-07-29 01:00:29 +00:00
Chris Lattner
f7443dace5 Don't forget to diddle with the control word when performing an FISTP64. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@22550 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-07-29 00:54:34 +00:00
Chris Lattner
745d538119 Use a custom expander to compile this: 
long %test4(double %X) {
        %tmp.1 = cast double %X to long         ; <long> [#uses=1]
        ret long %tmp.1
}

to this:

_test4:
        sub %ESP, 12
        fld QWORD PTR [%ESP + 16]
        fistp QWORD PTR [%ESP]
        mov %EDX, DWORD PTR [%ESP + 4]
        mov %EAX, DWORD PTR [%ESP]
        add %ESP, 12
        ret

instead of this:

_test4:
        sub %ESP, 28
        fld QWORD PTR [%ESP + 32]
        fstp QWORD PTR [%ESP]
        call ___fixdfdi
        add %ESP, 28
        ret


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@22549 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-07-29 00:40:01 +00:00
Andrew Lenharth
98169be50b support bsr, and more .td simplification 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@22543 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-07-28 18:14:47 +00:00
Andrew Lenharth
a4433e1b31 get lazy JITing working. Some of shootout runs now 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@22538 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-07-28 12:45:20 +00:00
Chris Lattner
988b1dd608 Eliminate an extra copy from R1 that Nate noticed on function calls that 
have to write arguments to the stack


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@22536 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-07-28 05:23:43 +00:00
Chris Lattner
4015ea8711 Specify the correct number of operands 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@22535 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-07-28 04:42:11 +00:00
Nate Begeman
2a05c8e260 Fold constant adds into loads and stores to frame indices. 
For the following code:
double %ext(int %A.0__, long %A.1__) {
        %A_addr = alloca %typedef.DComplex              ; <%typedef.DComplex*> [#uses=2]
        %tmp.1 = cast %typedef.DComplex* %A_addr to int*                ; <int*> [#uses=1]
        store int %A.0__, int* %tmp.1
        %tmp.2 = getelementptr %typedef.DComplex* %A_addr, int 0, uint 1                ; <double*> [#uses=2]
        %tmp.3 = cast double* %tmp.2 to long*           ; <long*> [#uses=1]
        store long %A.1__, long* %tmp.3
        %tmp.5 = load double* %tmp.2            ; <double> [#uses=1]
        ret double %tmp.5
}

We now generate:
_ext:
.LBB_ext_0:     ;
        stw r3, -12(r1)
        stw r4, -8(r1)
        stw r5, -4(r1)
        lfd f1, -8(r1)
        blr

Instead of:
_ext:
.LBB_ext_0:     ;
        stw r3, -12(r1)
        addi r2, r1, -12
        stw r4, 4(r2)
        stw r5, 8(r2)
        lfd f1, 4(r2)
        blr

This also fires hundreds of times on MultiSource.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@22533 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-07-28 03:02:05 +00:00
Nate Begeman
3dee17581c Fix some comments 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@22530 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-07-27 23:11:27 +00:00
Jeff Cohen
00b16889ab Eliminate all remaining tabs and trailing spaces. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@22523 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-07-27 06:12:32 +00:00
Nate Begeman
54eed36da5 Implement the optimization for the Red Zone on Darwin. This removes the 
unnecessary SP manipulation in leaf routines that don't need it.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@22522 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-07-27 06:06:29 +00:00
Chris Lattner
45ff4faeed fix some warnings when compiled with 32-bit hosts 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@22521 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-07-27 05:58:01 +00:00
Jeff Cohen
9eb59ec548 Eliminate tabs and trailing spaces. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@22520 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-07-27 05:53:44 +00:00
Chris Lattner
b65975a6ed add a note about the red zone 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@22518 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-07-26 19:07:51 +00:00
Chris Lattner
2e00d7d0ae Wrap some long lines, fix emission of weak global variables 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@22517 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-07-26 19:03:27 +00:00
Nate Begeman
4ad870ddcc Update the PPC readme 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@22516 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-07-26 18:59:06 +00:00
Nate Begeman
7b4f0a81ff Fix an optimization put in for accessing static globals. This obviates 
the need to build PIC.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@22512 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-07-25 21:15:28 +00:00
Andrew Lenharth
f075cac445 fix compile error 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@22508 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-07-23 07:46:48 +00:00
Chris Lattner
aa68f7fa09 PowerPC no-pic code is not quite ready for prime-time 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@22507 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-07-22 22:58:34 +00:00
Andrew Lenharth
6b137d818a Handle more imm forms, and load small negative i32 constants without hitting memory (should do the same for arbitrary zero extended small negative constants) 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@22505 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-07-22 22:24:01 +00:00
Andrew Lenharth
38396f8a93 finally found the gcc defined constants 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@22502 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-07-22 21:00:30 +00:00
Andrew Lenharth
0934ae02af Alpha JIT (beta) 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@22500 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-07-22 20:52:16 +00:00
Andrew Lenharth
f3f951af3f simpilfy instruction encoding (and make the lines way shorter, aka Misha happification) 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@22499 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-07-22 20:50:29 +00:00
Andrew Lenharth
908bc862d5 update interface 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@22498 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-07-22 20:49:37 +00:00
Nate Begeman
2497e6391f Support building non-PIC 
Remove the LoadHiAddr pseudo-instruction.
Optimization of stores to and loads from statics.
Force JIT to use new non-PIC codepaths.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@22494 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-07-21 20:44:43 +00:00
Chris Lattner
2130c08930 revert to using 4-byte alignment for doubles, as specified by the ABI 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@22493 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-07-21 19:17:18 +00:00
Nate Begeman
18ed029a7b Support assembling fsqrt on darwin. This will be implemented better when 
PowerPC gets subtarget support up.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@22489 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-07-21 01:25:49 +00:00
Nate Begeman
adeb43ddf4 Generate mfocrf when targeting g5. Generate fsqrt/fsqrts when targetin g5. 
8-byte align doubles.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@22486 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-07-20 22:42:00 +00:00
Nate Begeman
a3fd400fa8 Integrate SelectFPExpr into SelectExpr. This gets PPC32 closer to being 
automatically generated from a target description.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@22470 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-07-19 16:51:05 +00:00
Reid Spencer
a0f5bf306c For: memory operations -> stores 
This is the first incremental patch to implement this feature. It adds no
functionality to LLVM but setup up the information needed from targets in
order to implement the optimization correctly. Each target needs to specify
the maximum number of store operations for conversion of the llvm.memset,
llvm.memcpy, and llvm.memmove intrinsics into a sequence of store operations.
The limit needs to be chosen at the threshold of performance for such an
optimization (generally smallish). The target also needs to specify whether
the target can support unaligned stores for multi-byte store operations.
This helps ensure the optimization doesn't generate code that will trap on
an alignment errors.
More patches to follow.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@22468 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-07-19 04:52:44 +00:00
Nate Begeman
5a8441ea3f Teach the legalizer how to promote SINT_TO_FP to a wider SINT_TO_FP that 
the target natively supports.  This eliminates some special-case code from
the x86 backend and generates better code as well.

For an i8 to f64 conversion, before & after:

_x87 before:
        subl $2, %esp
        movb 6(%esp), %al
        movsbw %al, %ax
        movw %ax, (%esp)
        filds (%esp)
        addl $2, %esp
        ret

_x87 after:
        subl $2, %esp
        movsbw 6(%esp), %ax
        movw %ax, (%esp)
        filds (%esp)
        addl $2, %esp
        ret

_sse before:
        subl $12, %esp
        movb 16(%esp), %al
        movsbl %al, %eax
        cvtsi2sd %eax, %xmm0
        addl $12, %esp
        ret

_sse after:
        subl $12, %esp
        movsbl 16(%esp), %eax
        cvtsi2sd %eax, %xmm0
        addl $12, %esp
        ret


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@22452 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-07-16 02:02:34 +00:00
Nate Begeman
11cefd926a Teach the register allocator that movaps is also a move instruction 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@22451 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-07-16 02:00:20 +00:00
Nate Begeman
9035b99abf A couple more darwinisms 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@22450 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-07-16 01:59:47 +00:00
Chris Lattner
a28381cac2 Remove all knowledge of UINT_TO_FP from the X86 backend, relying on the 
legalizer to eliminate them.  With this comes the expected code quality
improvements, such as, for this:

double foo(unsigned short X) { return X; }

we now generate this:

_foo:
        subl $4, %esp
        movzwl 8(%esp), %eax
        movl %eax, (%esp)
        fildl (%esp)
        addl $4, %esp
        ret

instead of this:

_foo:
        subl $4, %esp
        movw 8(%esp), %ax
        movzwl %ax, %eax   ;; Load not folded into this.
        movl %eax, (%esp)
        fildl (%esp)
        addl $4, %esp
        ret

-Chris


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@22449 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-07-16 00:28:20 +00:00
Nate Begeman
16b04f3d5e Get closer to fully working scalar FP in SSE regs. This gets singlesource 
working, and Olden/power.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@22441 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-07-15 00:38:55 +00:00
Nate Begeman
6c7cb29038 Add support for printing the sse scalar comparison instruction mnemonics. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@22440 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-07-14 22:52:25 +00:00
John Criswell
ce4e1e419e Fixed PR#596: 
Add parenthesis around the value being negated; that way, if the value
begins with a minus sign (e.g. negative integer), we won't generate a
C predecrement operator by mistake.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@22437 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-07-14 19:41:16 +00:00
Nate Begeman
d3a490a08e Check in the last of the darwin-specific code necessary to get shootout 
working before modifying the asm printer to use the subtarget info.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@22408 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-07-12 18:34:58 +00:00
Nate Begeman
63b3f9acae Remove some code that moved to the generic asm printer a long time ago. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@22407 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-07-12 18:34:15 +00:00
Andrew Lenharth
fec0e4024f Fix povray and minor cleanups 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@22397 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-07-12 04:20:52 +00:00
Jeff Cohen
74fa8d67e1 I don't know how this ever compiled with gcc, but VC++ correctly rejects it. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@22394 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-07-12 02:59:38 +00:00
Nate Begeman
0e219eb9b8 Clean up the TargetSubtarget class a bit, removing an unnecessary argument 
to the constructor.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@22392 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-07-12 02:41:19 +00:00
Chris Lattner
b151acadc8 Minor changes to improve comments and fix the build on _WIN32 systems. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@22391 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-07-12 02:36:10 +00:00
Chris Lattner
3249bfc828 Add a note 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@22390 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-07-12 02:35:36 +00:00
Nate Begeman
fb5792f416 Implement Subtarget support 
Implement the X86 Subtarget.

This consolidates the checks for target triple, and setting options based
on target triple into one place.  This allows us to convert the asm printer
and isel over from being littered with "forDarwin", "forCygwin", etc. into
just having the appropriate flags for each subtarget feature controlling
the code for that feature.

This patch also implements indirect external and weak references in the
X86 pattern isel, for darwin.  Next up is to convert over the asm printers
to use this new interface.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@22389 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-07-12 01:41:54 +00:00
Nate Begeman
73213f6c07 Commit some pending darwin changes before subtarget support. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@22388 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-07-12 01:37:28 +00:00
Chris Lattner
df3623e962 fix a warning 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@22385 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-07-11 22:46:18 +00:00
Chris Lattner
c569d79a2a Output .size directives to tell the assembler the size of each function. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@22381 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-07-11 06:29:14 +00:00
Chris Lattner
b12c9fa565 Fix crazy indentation 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@22380 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-07-11 06:25:47 +00:00
Chris Lattner
81b6ed7ed1 Refactor things a bit to allow the ELF code emitter to run the X86 machine code emitter 
after itself.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@22376 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-07-11 05:17:48 +00:00
Chris Lattner
efb4bf0de6 Remove prototype for non-existant function 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@22372 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-07-11 04:20:55 +00:00
Chris Lattner
bce81ae51e Change *EXTLOAD to use an VTSDNode operand instead of being an MVTSDNode. 
This is the last MVTSDNode.

This allows us to eliminate a bunch of special case code for handling
MVTSDNodes.

Also, remove some uses of dyn_cast that should really be cast (which is
cheaper in a release build).


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@22368 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-07-10 01:56:13 +00:00
Chris Lattner
9fadb4c1c0 Change TRUNCSTORE to use a VTSDNode operand instead of being an MVTSTDNode 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@22366 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-07-10 00:29:18 +00:00
Nate Begeman
72b286b0a0 Add support for assembling .s files on mac os x for intel 
Add support for running bugpoint on mac os x for intel


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@22351 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-07-08 00:23:26 +00:00
Andrew Lenharth
a48f3ce18a clean up prolouge and epilouge 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@22346 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-07-07 19:52:58 +00:00
Chris Lattner
8d4b9eddc0 Restore some code that was accidentally removed by Nate's patch yesterday. 
This fixes the regressions from last night.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@22344 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-07-07 17:12:53 +00:00
Nate Begeman
b8aa3ac678 Fix a typo in my checkin today that caused regressions. Oops! 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@22341 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-07-07 06:32:01 +00:00
Nate Begeman
f63be7d395 First round of support for doing scalar FP using the SSE2 ISA extension and 
XMM registers.  There are many known deficiencies and fixmes, which will be
addressed ASAP.  The major benefit of this work is that it will allow the
LLVM register allocator to allocate FP registers across basic blocks.

The x86 backend will still default to x87 style FP.  To enable this work,
you must pass -enable-sse-scalar-fp and either -sse2 or -sse3 to llc.

An example before and after would be for:
double foo(double *P) { double Sum = 0; int i; for (i = 0; i < 1000; ++i)
                        Sum += P[i]; return Sum; }

The inner loop looks like the following:
x87:
.LBB_foo_1:     # no_exit
        fldl (%esp)
        faddl (%eax,%ecx,8)
        fstpl (%esp)
        incl %ecx
        cmpl $1000, %ecx
        #FP_REG_KILL
        jne .LBB_foo_1  # no_exit

SSE2:
        addsd (%eax,%ecx,8), %xmm0
        incl %ecx
        cmpl $1000, %ecx
        #FP_REG_KILL
        jne .LBB_foo_1  # no_exit


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@22340 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-07-06 18:59:04 +00:00
Chris Lattner
e0fe225e89 Make several cleanups to Andrews varargs change: 
1. Pass Value*'s into lowering methods so that the proper pointers can be
   added to load/stores from the valist
2. Intrinsics that return void should only return a token chain, not a token
   chain/retval pair.
3. Rename LowerVAArgNext -> LowerVAArg, because VANext is long gone.
4. Now that we have Value*'s available in the lowering methods, pass them
   into any load/stores from the valist that are emitted


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@22339 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-07-05 19:58:54 +00:00
Chris Lattner
08568cfe25 Fit to 80 columns 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@22336 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-07-05 17:50:16 +00:00
Chris Lattner
f84a2ace5e Fix PowerPC varargs 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@22335 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-07-05 17:48:31 +00:00
Andrew Lenharth
619fb52764 check the correct VT 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@22332 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-07-04 20:07:21 +00:00
Andrew Lenharth
2f5bca5c15 fix loading address of fp symbols 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@22331 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-07-03 20:06:13 +00:00
Chris Lattner
6a709a418b Percolate the call up to the right superclass 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@22330 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-07-03 17:34:39 +00:00
Nate Begeman
4eb74ba602 The statistic needs to be in the correct namespace. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@22327 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-07-01 23:56:38 +00:00
Chris Lattner
c1671e2d7d Varargs is apparently currently broken on PPC. This hacks it so that it 
is at least overloading the right virtual methods.  The implementations
are currently wrong though.  This fixes Ptrdist/bc, but not other programs
(e.g. siod).


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@22326 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-07-01 23:11:56 +00:00
Chris Lattner
b36cbd0286 Refactor X86AsmPrinter.cpp into multiple files. Patch contributed 
by Aaron Gray, cleaned up by me.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@22324 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-07-01 22:44:09 +00:00
Andrew Lenharth
5d5b17bf91 simplify call code, remove pseudo ops for div and rem, track more loads and stores 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@22323 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-07-01 19:14:02 +00:00
Andrew Lenharth
cf8bf388ea simplify call code, remove pseudo ops for div and rem, track more loads and stores 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@22322 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-07-01 19:12:13 +00:00
Chris Lattner
5de8b9d796 remove some debugging code 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@22321 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-07-01 06:40:58 +00:00
Nate Begeman
9d19eb459c Make the x86 asm printer darwin-aware. This mostly entails doing the same 
thing as cygwin most of the time, and printing our alignments in log2
rather than number of bytes.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@22316 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-06-30 00:53:20 +00:00
Andrew Lenharth
06ef88472f restore old srcValueNode behavior and try to to work around it 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@22315 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-06-29 18:54:02 +00:00
Andrew Lenharth
782ad62f33 tracking the instructions causing loads and stores provides more information than just the pointer being loaded or stored 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@22311 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-06-29 15:57:19 +00:00
Andrew Lenharth
0cab375231 thinko 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@22309 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-06-29 13:35:05 +00:00
Andrew Lenharth
f4da945302 unify SelectExpr and SelectFP 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@22308 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-06-29 12:49:51 +00:00
Andrew Lenharth
ba5dc44b00 fix most regressions 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@22307 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-06-29 12:23:34 +00:00
Andrew Lenharth
fce587e58b support more relocations for stores also 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@22306 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-06-29 00:39:17 +00:00
Andrew Lenharth
c7989cef9d Get rid of all symbolic loads. I now do gernate all relocations sequences 
rather than relying on the assembler.  Only a few more pseudo instructions
left.  Also merge load code paths.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@22305 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-06-29 00:31:08 +00:00
Andrew Lenharth
e014f89f3d some call work 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@22303 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-06-27 23:59:51 +00:00
Andrew Lenharth
6968bff783 So, it turns out I forgot that one valid way of restoring GP after a call 
is to use RA, which assumes the called function uses RA for the register
holding the return address when it issues a ret.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@22301 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-06-27 23:24:11 +00:00
Nate Begeman
f1702ac589 Initial set of .td file changes necessary to get scalar fp in xmm registers 
working.  The instruction selector changes will hopefully be coming later
this week once they are debugged.  This is necessary to support the darwin
x86 FP model, and is recommended by intel as the replacement for x87.  As
a bonus, the register allocator knows how to deal with these registers
across basic blocks, unliky the FP stackifier.  This leads to significantly
better codegen in several cases.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@22300 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-06-27 21:20:31 +00:00
Andrew Lenharth
c95d984f7c get rid of another pseudo op 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@22299 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-06-27 21:11:40 +00:00
Andrew Lenharth
02c318e1d2 generate address of constant pool entries 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@22298 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-06-27 21:02:56 +00:00
Andrew Lenharth
d4653b1852 Misha happification patch 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@22297 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-06-27 17:39:17 +00:00
Andrew Lenharth
fe895e3d87 Reduce use of pseudo ops 
Namely, output the rellocation flags explicitly when loading constants.
Added benifit: save a load when loading from the constant pool.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@22296 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-06-27 17:15:36 +00:00
Andrew Lenharth
b72bcbb42b missed a load 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@22295 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-06-27 16:40:26 +00:00
Andrew Lenharth
98f0eee406 make constant pool labels local 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@22294 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-06-27 16:29:54 +00:00
Andrew Lenharth
3b91807da7 who said we had to use the return address in the return address register. Might save a move in many cases 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@22293 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-06-27 15:36:48 +00:00
Chris Lattner
07a9144efe Add support to the X86 backend for emitting ELF files. To use this, we 
currently use: llc t.bc --filetype=obj

This will produce a t.o file which is dumpable with readelf.  Currently
the file produced is empty, but the scaffolding to do more is now in place.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@22292 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-06-27 06:30:12 +00:00
Andrew Lenharth
694c29831a depend more on legalize putting constants on the RHS 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@22289 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-06-26 23:01:11 +00:00
Andrew Lenharth
ec151361ba With setOperationAction(ISD::UINT_TO_FP, MVT::i64, Expand), Legalize 
should be able to handle this case.  The code is there, so let's see
if it works.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@22288 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-06-26 22:23:06 +00:00
Chris Lattner
0431c96cec Refactor the addPassesToEmitAssembly interface into a addPassesToEmitFile 
interface.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@22282 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-06-25 02:48:37 +00:00
Andrew Lenharth
3f5aa1cd8c remove a pseudo instruction, make ret always right, and fix vararg chains 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@22276 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-06-23 23:42:05 +00:00
Andrew Lenharth
a9e39e28b7 finally, Working varargs 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@22275 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-06-23 16:48:51 +00:00
Andrew Lenharth
cdf233d55d more complete Lowering for vacopy and vaarg 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@22274 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-06-22 23:04:28 +00:00
Andrew Lenharth
213e557cef If we support structs as va_list, we must pass pointers to them to va_copy 
See last commit for LangRef, this implements it on all targets.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@22273 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-06-22 21:04:42 +00:00
Andrew Lenharth
b69f342b0e Make it easier to find alpha stuff in doxygen, and fixup labeling 
of memory instructions in the assembly, to allow later linking
of traces with LLVM Value*s.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@22271 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-06-22 17:19:45 +00:00
John Criswell
57c24508d3 Fixed indentation. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@22270 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-06-20 19:59:22 +00:00
Andrew Lenharth
08b06dc956 so this doesn't crash when run. It is hard to tell if things are right enough to work correctly with all the TmpInstructions running around 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@22261 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-06-19 05:45:00 +00:00
Andrew Lenharth
5fb7f20469 OK, at least get rid of old stuff, and mark what needs to be fixed for V9 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@22255 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-06-18 18:46:40 +00:00
Andrew Lenharth
558bc88a00 core changes for varargs 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@22254 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-06-18 18:34:52 +00:00
Reid Spencer
4b828e6384 Clean up some uninitialized variables and missing return statements that 
GCC 4.0.0 compiler (sometimes incorrectly) warns about under release build.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@22249 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-06-18 17:37:34 +00:00
Andrew Lenharth
72b16d820c A start at a Sparc V8 Pattern ISel. Anyone want to implement the calling 
convention? ;)


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@22247 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-06-17 16:52:12 +00:00
Chris Lattner
b157f858a2 silence incredibly braindead GCC 4 warning 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@22246 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-06-17 13:44:07 +00:00
Chris Lattner
9cb2d6167d silence a bogus warning 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@22245 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-06-17 13:23:32 +00:00
Tanya Lattner
60b62aa046 Removed IIIi specific changes. This should be fixed to add floating point deps for the IIi. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@22243 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-06-17 04:21:09 +00:00
Tanya Lattner
d70cee2d5a Special dep graph for SMS for superblocks. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@22242 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-06-17 04:16:14 +00:00
Tanya Lattner
747e053cba Special versions of the dep graph and scheduled for SMS for superblocks. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@22241 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-06-17 04:15:43 +00:00
Tanya Lattner
8352e23d11 Added statistic to count number of spills. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@22240 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-06-17 04:01:34 +00:00
Tanya Lattner
d454a973a5 Numerous bug fixes and the completed modschedSB algorithm (minor bugs still exist for course). 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@22239 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-06-17 04:00:57 +00:00
Tanya Lattner
770e991bc4 Added SMS for superblocks as an option (experimental) 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@22238 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-06-17 04:00:22 +00:00
Nate Begeman
439009c81e Commit fix for generating conditional branch pseudo instructions that 
avoids dereferencing the end() iterator when selecting the fallthrough
block.  This requires an ilist change.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@22212 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-06-15 18:22:43 +00:00
Nate Begeman
a43b176f51 Commit a small improvement that is already in the x86 and ia64 backends to 
not generate unnecessary register copies.  This improves compile time by
2-5% depending on the test.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@22210 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-06-14 03:55:23 +00:00
Nate Begeman
244e92eaab When compiled with GCC 4.0, a latent bug was exposed where both SparcV9 
and the target independant register allocator were both using a class named
'LiveRange'.  This lead to the target independant code calling code in the
SparcV9 backend, which crashed.  Fixed by renaming SparcV9's LiveRange to
V9LiveRange.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@22208 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-06-12 23:52:58 +00:00
Nate Begeman
ac609ddf82 Fix a memory smasher caught by Mac OS X's debug malloc library. We were 
incorrectly using an iterator after it was invalid.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@22207 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-06-12 23:50:33 +00:00
Andrew Lenharth
09552bff8d fix BranchCC with a setCC with an arg of 0 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@22203 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-06-08 18:02:21 +00:00
Reid Spencer
eae435de83 For PR572: 
Undefine the PPC symbol which is defined by Linux/PPC (erroneously) so it
doesn't pollute the user namespace and clash with our namespace declarations.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@22202 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-06-08 17:44:48 +00:00
Nate Begeman
b2c4bf3ff6 Handle some more real world cases of rlwimi. These don't come up that 
regularly in "normal" code, but for things like software graphics, they
make a big difference.

For the following code:
unsigned short Trans16Bit(unsigned srcA,unsigned srcB,unsigned alpha)
{
	unsigned tmpA,tmpB,mixed;
	tmpA = ((srcA & 0x03E0) << 15) | (srcA & 0x7C1F);
	tmpB = ((srcB & 0x03E0) << 15) | (srcB & 0x7C1F);
	mixed = (tmpA * alpha) + (tmpB * (32 - alpha));
	return ((mixed >> 5) & 0x7C1F) | ((mixed >> 20) & 0x03E0);
}

We now generate:
_Trans16Bit:
.LBB_Trans16Bit_0:      ; entry
        andi. r2, r4, 31775
        rlwimi r2, r4, 15, 7, 11
        subfic r4, r5, 32
        mullw r2, r2, r4
        andi. r4, r3, 31775
        rlwimi r4, r3, 15, 7, 11
        mullw r3, r4, r5
        add r2, r2, r3
        srwi r3, r2, 5
        andi. r3, r3, 31775
        rlwimi r3, r2, 12, 22, 26
        blr

Instead of:
_Trans16Bit:
.LBB_Trans16Bit_0:      ; entry
        slwi r2, r4, 15
        rlwinm r2, r2, 0, 7, 11
        andi. r4, r4, 31775
        or r2, r2, r4
        subfic r4, r5, 32
        mullw r2, r2, r4
        slwi r4, r3, 15
        rlwinm r4, r4, 0, 7, 11
        andi. r3, r3, 31775
        or r3, r4, r3
        mullw r3, r3, r5
        add r2, r2, r3
        srwi r3, r2, 5
        andi. r3, r3, 31775
        srwi r2, r2, 20
        rlwimi r3, r2, 0, 22, 26
        blr


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@22201 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-06-08 04:14:27 +00:00
Nate Begeman
6dae3308f5 Fix lli linking on Mac OS X 10.4.1 for Intel. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@22200 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-06-08 01:02:38 +00:00
Misha Brukman
5e96a3a49f Fix spelling of `correlate' 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@22196 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-06-06 19:08:04 +00:00
Andrew Lenharth
cd7f8cf70b allow marking of loads and stores in the instruction stream with enough information to reconstruct the Value* if it existed 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@22195 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-06-06 19:03:55 +00:00
Andrew Lenharth
eee2a881cf hide basic block labels. The utility of these for debuging is long since passed 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@22194 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-06-06 19:03:09 +00:00
Misha Brukman
b8ee91a80f * Replace block of commented-out lines with #if 0 
* Remove warning "control reaches end of non-void function"


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@22193 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-06-06 17:39:46 +00:00
Reid Spencer
628214eb74 Make sure that Cygwin assembly includes _ as part of function names. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@22190 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-06-02 21:33:19 +00:00
Andrew Lenharth
e3c8c0a49d try custom expanders, doesn't seem to expand yet, so disabled 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@22188 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-05-31 19:49:34 +00:00
Andrew Lenharth
591ec57c09 switch to the new live in thing. Really, this time it works 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@22187 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-05-31 18:42:18 +00:00
Andrew Lenharth
14f30c927d switch to the new live in thing 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@22186 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-05-31 18:37:16 +00:00
Andrew Lenharth
fd5e4b778f switch to the new live in thing 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@22185 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-05-31 18:35:43 +00:00
Andrew Lenharth
044f31ffb1 match gcc, makes diff easier 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@22179 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-05-27 03:39:30 +00:00
Andrew Lenharth
69520ed67a Fix 2005-05-12-Int64ToFP 
The issue is there is no unsigned -> double conversion, only signed.  So I
need to test the sign and do a different thing depending on it.  Ideally
this should be in a different BB, but in the mean time, I use a branch
free method.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@22177 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-05-26 18:18:34 +00:00
Nate Begeman
be13634907 C'mon everybody, let's modify X86JITInfo.cpp. This time, we add <iostream> 
so that the shiny new use of std::cerr is defined.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@22156 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-05-20 21:29:24 +00:00
Misha Brukman
57ebf3d6a8 Since everyone else has "fixed" this file, might as well join in the fun. 
* Change assert() to std::cerr printout, as it will not appear in opt builds
* Add comments to clarify what #ifdef/#else/#endif match what condition(s)


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@22154 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-05-20 19:46:50 +00:00
Chris Lattner
170fbcbc63 Fix this a 3rd time :) 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@22151 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-05-20 17:00:21 +00:00
Andrew Lenharth
75a51277d2 fix compilation error due to no abort being defined. There is probably a better way to do this 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@22150 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-05-20 16:34:44 +00:00
Duraid Madina
04aa46d647 re-enable direct calls, this should just be a performance boost 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@22148 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-05-20 11:39:17 +00:00
Duraid Madina
732c843f0e this seems dead (and broke the ia64 build, so..) 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@22147 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-05-20 06:21:59 +00:00
Jeff Cohen
8bc6f934e8 Fix tail call support in VC++ builds 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@22143 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-05-20 01:35:39 +00:00
Chris Lattner
1030f72f8a Fastcc passes arguments in EAX and EDX, make sure the JIT doesn't clobber them 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@22137 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-05-19 06:49:17 +00:00
Chris Lattner
16cb6f82eb Tailcalls require stubs to be emitted. Otherwise, the compilation callback 
doesn't know who 'called' it.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@22136 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-05-19 05:54:33 +00:00
Misha Brukman
29eeea5082 Wrap long lines 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@22125 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-05-18 20:37:33 +00:00
Chris Lattner
fc87928ebb PPC "branch and link" instructions are branches in the PPC sense, but not 
in the LLVM code generator sense (they are calls).  Don't mark them as such,
which fixes the regressions on the ppc tester last night


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@22065 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-05-15 20:11:44 +00:00
Chris Lattner
022ed327bd Fix andrews changes to fit in 80 columns 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@22064 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-05-15 19:54:37 +00:00
Duraid Madina
e75a24a5fa make angry compilers happy again 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@22054 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-05-15 14:44:13 +00:00
Chris Lattner
ea0354346f don't reserve space for tailcall arg areas. It explicitly managed. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@22050 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-05-15 06:07:10 +00:00
Chris Lattner
5fae9ccd39 Teach reginfo how to deal with ADJSTACKPTRri, allowing us to generate: 
add %ESP, 20
        jmp %EDX  # TAIL CALL

instead of:
        add %ESP, -8
        add %ESP, 28
        jmp %EDX  # TAIL CALL


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@22047 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-05-15 05:49:58 +00:00
Chris Lattner
381e88799e Implement proper tail calls in the X86 backend for all fastcc->fastcc 
tail calls.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@22046 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-05-15 05:46:45 +00:00
Chris Lattner
1e9448bce8 Add markers in the asm file for tail calls, add a new ADJSTACKPTRri 
sorta-pseudo-instruction


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@22042 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-05-15 03:10:37 +00:00
Chris Lattner
0dede079e7 Yes, calltarget is the operand of the day. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@22040 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-05-15 01:10:30 +00:00
Chris Lattner
6972177bd4 When emitting the function epilog, check to see if there already a stack 
adjustment.  If so, we merge the adjustment into the existing one.  This
allows us to generate:

caller2:
        sub %ESP, 12
        mov DWORD PTR [%ESP], 0
        mov %EAX, 1234567890
        mov %EDX, 0
        call func2
        add %ESP, 8
        ret 4

intead of:

caller2:
        sub %ESP, 12
        mov DWORD PTR [%ESP], 0
        mov %EAX, 1234567890
        mov %EDX, 0
        call func2
        sub %ESP, 4
        add %ESP, 12
        ret 4

for X86/fast-cc-merge-stack-adj.ll


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@22038 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-05-14 23:53:43 +00:00
Chris Lattner
2b3d56ee72 Add some new instructions 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@22036 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-05-14 23:35:21 +00:00
Chris Lattner
920c0aa9c2 Pass i64 values correctly split in reg/mem to fastcc calls. 
This fixes fourinarow with -enable-x86-fastcc.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@22022 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-05-14 12:03:10 +00:00
Chris Lattner
239738a162 Use target-specific nodes for calls. This allows the fastcc code to not have 
to do ugly hackery to avoid emitting code like this:

   call foo
   mov vreg, EAX
   adjcallstackup ...

If foo is a fastcc call and if vreg gets spilled, we might end up with this:

   call foo
   mov [ESP+offset], EAX     ;; Offset doesn't consider the 12!
   sub ESP, 12

Which is bad.  The previous hacky code to deal with this was A) gross B) not
good enough.  In particular, it could miss cases and emit the bad code above.
Now we always emit this:

   call foo
   adjcallstackup ...
   mov vreg, EAX

directly.

This makes fastcc with callees poping the stack work much better.  Next
stop (finally!) really is tail calls.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@22021 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-05-14 08:48:15 +00:00
Chris Lattner
67649dfc32 use a target-specific node and custom expander to lower long->FP to FILD64m. 
This should fix some missing symbols problems on BSD and improve performance
of programs that use that operation.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@22012 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-05-14 06:52:07 +00:00
Chris Lattner
10d2645710 Make sure the start of the arg area and the end (after the RA is pushed) 
is always 8-byte aligned for fastcc


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@21995 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-05-13 23:49:10 +00:00
Chris Lattner
653f7230ad fix typo 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@21991 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-05-13 22:46:57 +00:00
Chris Lattner
06cebb456a Fix the problems with callee popped argument lists 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@21988 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-05-13 22:13:49 +00:00
Chris Lattner
ca96c8217d Don't emit SAR X, 0 in the case of sdiv Y, 2 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@21986 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-05-13 21:50:27 +00:00
Chris Lattner
a96e577f53 Fix UnitTests/2005-05-13-SDivTwo.c 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@21985 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-05-13 21:48:20 +00:00
Chris Lattner
3648c67eb2 switch to having the callee pop stack operands for fastcc. This is currently buggy 
do not use


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@21984 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-05-13 21:44:04 +00:00
Chris Lattner
24ddc6d067 allow RETI 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@21980 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-05-13 20:46:35 +00:00
Chris Lattner
b5d8e6ece6 treat TAILCALL nodes identically to CALL nodes 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@21977 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-05-13 20:29:26 +00:00
Chris Lattner
2e7714ad2b Build TAILCALL nodes in LowerCallTo, treat them like normal calls everywhere. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@21976 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-05-13 20:29:13 +00:00
Chris Lattner
7d93727bb2 capitalize 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@21962 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-05-13 19:48:34 +00:00
Chris Lattner
f8492193b9 clarify that these are v9 options 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@21960 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-05-13 19:45:45 +00:00
Chris Lattner
6bc2dc7b2c hide this option 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@21959 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-05-13 19:44:21 +00:00
Chris Lattner
adf6a965a3 Add an isTailCall flag to LowerCallTo 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@21958 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-05-13 18:50:42 +00:00
Chris Lattner
1be4811d34 add 'ret imm' instruction 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@21945 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-05-13 17:56:48 +00:00
Chris Lattner
32f3cf612e Realize that we don't support fmod directly, fixing CodeGen/Generic/print-arith-fp.ll 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@21939 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-05-13 16:20:22 +00:00
Chris Lattner
63602fb868 Do not CopyFromReg physregs for live-in values. Instead, create a vreg for 
each live in, and copy the regs from the vregs.  As the very first thing we
do in the function, insert copies from the pregs to the vregs.  This fixes
problems where the token chain of CopyFromReg was not enough to allow reordering
of the copyfromreg nodes and other unchained nodes (e.g. div, which clobbers
eax on intel).


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@21932 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-05-13 07:38:09 +00:00
Chris Lattner
16cd04d26c rename the ADJCALLSTACKDOWN/ADJCALLSTACKUP nodes to be CALLSEQ_START/BEGIN. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@21915 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-05-12 23:24:06 +00:00
Chris Lattner
c6f4181923 Add a new -enable-x86-fastcc option that enables passing the first 
two integer values in registers for the fastcc calling conv.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@21912 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-05-12 23:06:28 +00:00
Chris Lattner
c57f682113 Pass in Calling Convention to use into LowerCallTo 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@21899 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-05-12 19:56:45 +00:00
Chris Lattner
6649418598 Enable pattern isel by default 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@21898 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-05-12 19:56:09 +00:00
Chris Lattner
9bce0f92c3 These targets don't like setcc 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@21884 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-05-12 02:06:00 +00:00
Nate Begeman
d7c4a4a6c0 Necessary changes to codegen cttz efficiently on PowerPC 
1. Teach LegalizeDAG how to better legalize CTTZ if the target doesn't have
   CTPOP, but does have CTLZ
2. Teach PPC32 how to do sub x, const -> add x, -const for valid consts
3. Teach PPC32 how to do and (xor a, -1) b -> andc b, a
4. Teach PPC32 that ISD::CTLZ -> PPC::CNTLZW


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@21880 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-05-11 23:43:56 +00:00
Tanya Lattner
d977095838 Fixed issue that broke ssa. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@21878 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-05-11 21:45:03 +00:00
Chris Lattner
4548a0ed32 fix some GCC 4 warnings 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@21877 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-05-11 21:40:40 +00:00
John Criswell
3163e2d9f3 Added support for decomposing constant expressions containing shr and shl 
instructions.
Review of this commit would be greatly appreciated.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@21876 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-05-11 21:16:42 +00:00
Duraid Madina
63bbed536c add the popcount instruction and support this in the isel 
the primary user of this will probably end up being find-first-set-bit/find-
last-set-bit, which i'll get around to...


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@21860 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-05-11 05:16:09 +00:00
Chris Lattner
1f38e5c431 No really IA*64* :) 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@21858 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-05-11 05:03:56 +00:00
Chris Lattner
c610d4267f X86 has more than just 32-bit registers 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@21857 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-05-11 05:00:34 +00:00
Chris Lattner
6415bb4c29 Convert feature of the simple isel over for the pattern isel to use. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@21840 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-05-10 03:53:18 +00:00
Jeff Cohen
19bb2283e6 Silence some VC++ warnings 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@21838 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-05-10 02:22:38 +00:00
Chris Lattner
966cdfb600 Implement READPORT/WRITEPORT, implementing the last X86 regression tests 
that were failing with the pattern selector.  Note that the support that
existed in the simple selector was clearly broken in several ways though
(which has also been fixed).


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@21831 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-05-09 21:17:38 +00:00
Chris Lattner
cecd67b432 do not emit illegal instructions 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@21830 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-05-09 21:06:04 +00:00
Chris Lattner
82c7897f49 Fix the syntax of the i/o instructions, these are obviously unused. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@21829 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-05-09 20:49:20 +00:00
Chris Lattner
4e6ce5f9c7 legalize readio/writeio into load/stores, fixing CodeGen/X86/io.llx with 
the pattern isel.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@21828 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-05-09 20:37:29 +00:00
Chris Lattner
a0dbf181e0 restore some non-dead code I removed last night breaking double casts to 
uint


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@21821 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-05-09 18:37:02 +00:00
Chris Lattner
cafb67b250 fold and (shl X, C1), C2 -> rlwinm when possible. Many other cases are possible, 
include and (srl)    and the inverses (shl and) etc.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@21820 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-05-09 17:39:48 +00:00
Duraid Madina
8a3042c872 fix and cleanup constmul code a bit, this fixes mediabench/toast and 
probably a couple of other tests.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@21814 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-05-09 13:18:34 +00:00
Chris Lattner
a80d2bd89c Wrap long lines, remove dead code that is now handled by legalize 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@21811 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-05-09 05:40:26 +00:00
Chris Lattner
2afa1910d4 Fix FP -> bool casts 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@21810 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-05-09 05:33:18 +00:00
Chris Lattner
e3e0f2765a Fix X86/2005-05-08-FPStackifierPHI.ll: ugly gross hack. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@21801 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-05-09 03:36:39 +00:00
Chris Lattner
50a8a17e65 clean up the CBE output a bit 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@21740 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-05-06 06:58:42 +00:00
Chris Lattner
fe673d9351 add tail marker as a comment 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@21739 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-05-06 06:53:07 +00:00
Andrew Lenharth
b5884d3116 fix typo 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@21693 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-05-04 19:25:37 +00:00
Andrew Lenharth
590091975c Well, add support for ct* for 21264 only. 
21164 is broken until expand works.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@21692 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-05-04 19:12:09 +00:00
Andrew Lenharth
691ef2ba06 Implement count leading zeros (ctlz), count trailing zeros (cttz), and count 
population (ctpop).  Generic lowering is implemented, however only promotion
is implemented for SelectionDAG at the moment.

More coming soon.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@21676 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-05-03 17:19:30 +00:00
Duraid Madina
40c9e6be3e support multiplication by constant negative integers 
this constmul code is still buggy though, so beware. mul by 7427 is currently
broken, for example. will fix it when I get a moment :)


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@21652 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-05-02 07:27:14 +00:00
Duraid Madina
4bd708d8a6 add support for bools to SELECT, this fixes Prolangs-C/bison from the 
testsuite, however 09-vor is still dead (hopefully for other reasons!)


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@21651 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-05-02 06:41:13 +00:00
Tanya Lattner
874abe50ac SMS for superblocks. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@21643 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-05-01 01:27:47 +00:00
Tanya Lattner
be2b84aa9e Added extra constructor for superblocks. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@21642 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-05-01 01:25:53 +00:00
Tanya Lattner
c50156360a Fixed bug in searchPath function for finding nodes between two recurrences. 
Changed dependence analyzer to only use dep distances of 2 or less.
This is experimental.

Changed MSchedGraph to be able to represent more then one BB (first steps).


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@21641 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-04-30 23:07:59 +00:00
Andrew Lenharth
50d91d71a5 I was sure I had thought about this and there was a reason it should work. 
But it is entirely possible I am just crazy.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@21640 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-04-30 14:19:13 +00:00
Chris Lattner
9c9183aef4 Eliminate some random whitespace 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@21637 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-04-30 04:44:07 +00:00
Chris Lattner
08cae7f519 Doesn't support these nodes 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@21634 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-04-30 04:26:56 +00:00
Chris Lattner
17234b7d78 This target doesn't support the FSIN/FCOS/FSQRT nodes yet 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@21633 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-04-30 04:26:06 +00:00
Chris Lattner
c5dcb53bea Add support for FSIN/FCOS when unsafe math ops are enabled. Patch contributed by 
Morten Ofstad!


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@21632 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-04-30 04:25:35 +00:00
Chris Lattner
5434b429c8 Add support for llvm.sqrt and sin/cos if unsafe math optimizations are enabled. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@21631 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-04-30 04:12:40 +00:00
Chris Lattner
34f74a6162 Expose an option allowing unsafe math optimizations. Patch contributed by 
Morten Ofstad!


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@21630 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-04-30 04:09:52 +00:00
Chris Lattner
2c56e8a23e Add support for FSQRT node, patch contributed by Morten Ofstad 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@21610 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-04-28 22:07:18 +00:00
Chris Lattner
5afc124bdf Add some new X86 instrs, patch contributed by Morten Ofstad 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@21608 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-04-28 21:50:05 +00:00
Chris Lattner
3b6b63711e Codegen fabs/fabsf as FABS. Patch contributed by Morten Ofstad 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@21607 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-04-28 21:48:42 +00:00
Andrew Lenharth
2d86ea21dd Implement Value* tracking for loads and stores in the selection DAG. This enables one to use alias analysis in the backends. 
(TRUNK)Stores and (EXT|ZEXT|SEXT)Loads have an extra SDOperand which is a SrcValueSDNode which contains the Value*.  Note that if the operation is introduced by the backend, it will still have the operand, but the value* will be null.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@21599 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-04-27 20:10:01 +00:00
Duraid Madina
85d5f6067d clean up some warnings 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@21590 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-04-27 11:57:39 +00:00
Duraid Madina
4706c0395b constmul bugfix: multiply by 27611 was broken 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@21564 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-04-26 09:42:50 +00:00
Duraid Madina
3b84bac3ef clean up the code! (oops) lots more cleaning left, however. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@21563 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-04-26 08:43:47 +00:00
Duraid Madina
b2322561cb * Add code to reduce multiplies by constant integers to shifts, adds and 
subtracts. This is a very rough and nasty implementation of Lefevre's
  "pattern finding" algorithm. With a few small changes though, it should
  end up beating most other methods in common use, regardless of the size
  of the constant (currently, it's often one or two shifts worse)

  TODO: rewrite it so it's not hideously ugly (this is a translation from
        perl, which doesn't help ;)
        bypass most of it for multiplies by 2^n+1
	(eventually) teach it that some combinations of shift+add are
	cheaper than others (e.g. shladd on ia64, scaled adds on alpha)
	get it to try multiple booth encodings in search of the cheapest
	routine
	make it work for negative constants

  This is hacked up as a DAG->DAG transform, so once I clean it up I hope
  it'll be pulled out of here and put somewhere else. The only thing backends
  should really have to worry about for now is where to draw the line
  between using this code vs. going ahead and doing an integer multiply
  anyway.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@21560 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-04-26 07:23:02 +00:00
Reid Spencer
a1aad3b0ed Shut GCC 4.0 up about classes that have virtual functions but a non-virtual 
destructor. Just add the do-nothing virtual destructor.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@21524 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-04-25 02:55:55 +00:00
Misha Brukman
27177f8c16 Convert tabs to spaces 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@21457 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-04-22 18:06:01 +00:00
Misha Brukman
7847fcac17 Convert tabs to spaces 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@21452 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-04-22 17:54:37 +00:00
Reid Spencer
18969fbc9f Implement the --enable-targets= feature of the configure script. The make 
variable TARGETS_TO_BUILD is used to determine which targets in lib/Target
are built and which libraries are linked into llc. This effectively
implements the feature. One item remains: disabling targets in the dejagnu
test suite.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@21450 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-04-22 17:20:11 +00:00
Andrew Lenharth
500b4dba32 keep track of max depth stats 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@21446 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-04-22 13:35:18 +00:00
Tanya Lattner
9f83822565 Updated dependence analyzer. Fixed numerous bugs. Same stage scheduling, etc. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@21444 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-04-22 06:32:48 +00:00
Misha Brukman
0e0a7a45d3 * Remove trailing whitespace 
* Convert tabs to spaces


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@21426 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-04-21 23:38:14 +00:00
Misha Brukman
b5f662fa03 Remove trailing whitespace 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@21425 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-04-21 23:30:14 +00:00
Misha Brukman
4633f1cde8 Remove trailing whitespace 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@21424 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-04-21 23:13:11 +00:00
Misha Brukman
f976c856fc Remove trailing whitespace 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@21422 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-04-21 22:55:34 +00:00
Chris Lattner
837a521c48 Match another form of eqv 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@21413 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-04-21 21:09:11 +00:00
Chris Lattner
109026290b Handle stores of global address as stores of immediates. Instead of: 
test1:
        movl $N, %eax
        movl %eax, G
        ret

emit:

test1:
        movl $N, G
        ret


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@21407 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-04-21 19:11:03 +00:00
Chris Lattner
75f354bd7a Handle (store &GV -> mem) as a store immediate. This often occurs for 
printf format strings and other stuff.  Instead of generating this:

        movl $l1__2E_str_1, %eax
        movl %eax, (%esp)

we now emit:

        movl $l1__2E_str_1, (%esp)


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@21406 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-04-21 19:03:24 +00:00
Misha Brukman
d6a29a5304 Remove trailing whitespace, patch by Markus Oberhumer. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@21379 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-04-20 16:05:03 +00:00
Chris Lattner
f577c6122f Add completely untested support for mtcrf/mfcrf encoding 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@21353 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-04-19 05:41:52 +00:00
Chris Lattner
14522e31d9 switch over the rest of the formats that use RC to use isDOT 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@21352 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-04-19 05:21:30 +00:00
Chris Lattner
883059fb58 Convert the XForm instrs and XSForm instruction over to use isDOT 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@21351 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-04-19 05:15:18 +00:00
Chris Lattner
97a2d42999 Now that the ppc64 and vmx operands of I are always 0, forward substitute 
them away.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@21350 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-04-19 05:05:22 +00:00
Chris Lattner
a611ab72ca convert over bform and iform instructions 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@21349 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-04-19 05:00:59 +00:00
Chris Lattner
57226fbc7b Convert over DForm and DSForm instructions 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@21348 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-04-19 04:59:28 +00:00
Chris Lattner
e19d0b1130 Convert XLForm and XForm instructions over to use PPC64 when appropriate. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@21347 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-04-19 04:51:30 +00:00
Chris Lattner
5035cef732 Convert XO XS and XFX forms to use isPPC64 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@21346 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-04-19 04:40:07 +00:00
Chris Lattner
0bdc6f1fd4 Turn PPC64 and VMX into classes that can be added to instructions instead of 
bits that must be passed up the inheritance hierarchy.  Convert MForm and AForm
instructions over


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@21345 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-04-19 04:32:54 +00:00
Nate Begeman
1cbf3abbb8 Next round of PPC CR optimizations. For the following code: 
int %bar(float %a, float %b, float %c, float %d) {
entry:
    %tmp.1 = setlt float %a, %d
    %tmp.2 = setlt float %b, %d
    %or = or bool %tmp.1, %tmp.2
    %tmp.3 = setgt float %c, %d
    %tmp.4 = or bool %or, %tmp.3
    %tmp.5 = and bool %tmp.4, true
    %retval = cast bool %tmp.5 to int
    ret int %retval
}

We now emit:

_bar:
.LBB_bar_0:     ; entry
        fcmpu cr0, f1, f4
        fcmpu cr1, f2, f4
        cror 0, 0, 4
        fcmpu cr1, f3, f4
        cror 28, 0, 5
        mfcr r2
        rlwinm r3, r2, 29, 31, 31
        blr

Instead of:

_bar:
.LBB_bar_0:     ; entry
        fcmpu cr7, f1, f4
        mfcr r2
        rlwinm r2, r2, 29, 31, 31
        fcmpu cr7, f2, f4
        mfcr r3
        rlwinm r3, r3, 29, 31, 31
        or r2, r2, r3
        fcmpu cr7, f3, f4
        mfcr r3
        rlwinm r3, r3, 30, 31, 31
        or r3, r2, r3
        blr


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@21321 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-04-18 07:48:09 +00:00
Nate Begeman
16ac709c63 Change codegen for setcc to read the bit directly out of the condition 
register.  Added support in the .td file for the g5-specific variant
  of cr -> gpr moves that executes faster, but we currently don't
  generate it.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@21314 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-04-18 02:43:24 +00:00
Chris Lattner
477d1de9b2 Handle ExternalSymbol operands in the PPC JIT 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@21312 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-04-18 00:46:10 +00:00
Nate Begeman
f8b02949e3 Make pattern isel default for ppc 
Add new ppc beta option related to using condition registers
Make pattern isel control flag (-enable-pattern-isel) global and tristate
  0 == off
  1 == on
  2 == target default


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@21309 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-04-15 22:12:16 +00:00
Andrew Lenharth
1e0d9bda62 fix calls 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@21303 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-04-14 17:34:20 +00:00
Andrew Lenharth
3ae1829fe5 a 21264 fix, and fix the operator precidence on an and -> zap check (should fix hundreds of test cases 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@21302 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-04-14 16:24:00 +00:00
Duraid Madina
1ce0c015ad print negative 64 bit immediates as negative numbers, makes things a little 
easier on the eyes, not that numbers like 18446744073709541376 are bad or
anything


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@21300 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-04-14 10:08:01 +00:00
Duraid Madina
3eb7150c3e oops, this stopped us turning movl r4=0xFFFFFFFF;; and rX, r4 into zxt4 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@21299 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-04-14 10:06:35 +00:00
Nate Begeman
7bfba7d5e3 Implement multi-way branches through logical ops on condition registers. 
This can generate considerably shorter code, reducing the size of crafty
by almost 1%.  Also fix the printing of mcrf.  The code is currently
disabled until it gets a bit more testing, but should work as-is.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@21298 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-04-14 09:45:08 +00:00
Duraid Madina
c4ccc2db6b we have zextloads, not sextloads! 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@21296 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-04-14 08:37:32 +00:00
Nate Begeman
ef7288c824 Add the necessary support to codegen condition register logical ops with 
register allocated condition registers.  Make sure that the printed
  output is gas compatible.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@21295 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-04-14 03:20:38 +00:00
Nate Begeman
1b7f7fbf95 Start allocating condition registers. Almost all explicit uses of CR0 are 
now gone.  Next step is to get rid of the remaining ones and then start
allocating bools to CRs where appropriate.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@21294 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-04-13 23:15:44 +00:00
Nate Begeman
3664ceffdd Implement the fold shift X, zext(Y) -> shift X, Y at the target level, 
where it is safe to do so.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@21293 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-04-13 22:14:14 +00:00
Nate Begeman
eea805e74c Disbale the broken fold of shift + sz[ext] for now 
Move the transform for select (a < 0) ? b : 0 into the dag from ppc isel
Enable the dag to fold and (setcc, 1) -> setcc for targets where setcc
  always produces zero or one.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@21291 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-04-13 21:23:31 +00:00
Andrew Lenharth
c24b537399 WOW, function calls still seem to work after this. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@21286 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-04-13 17:17:28 +00:00
Andrew Lenharth
556c44e116 prepare for func call optimization 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@21285 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-04-13 16:19:50 +00:00
Duraid Madina
ed09502a0b * add the shladd instruction 
* fold left shifts of 1, 2, 3 or 4 bits into adds

  This doesn't save much now, but should get a serious workout once
  multiplies by constants get converted to shift/add/sub sequences.
  Hold on! :)


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@21282 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-04-13 06:12:04 +00:00
Andrew Lenharth
4f7cba5af8 add matches for SxADDL and company, as well as simplify the SxADDQ code 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@21281 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-04-13 05:19:55 +00:00
Duraid Madina
c02780eed1 * if ANDing with a constant of the form: 
0x00000..00FFF..FF
      ^      ^
      ^      ^
    any number of
    0's followed by
    some number of
    1's

    then we use dep.z to just paste zeros over the input. For the special
    cases where this is zxt1/zxt2/zxt4, we use those instructions instead,
    because we're all about readability!!!
    that's what it's about!! readability!

  *twitch* ;D


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@21279 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-04-13 04:50:54 +00:00
Andrew Lenharth
483f22d817 added all flavors of zap for anding 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@21276 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-04-13 03:47:03 +00:00
Chris Lattner
5bf2686a1b Fix some mysteriously missing {}'s which cause the miscompilation of 
Olden/mst, Ptrdist/bc, Obsequi, etc.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@21274 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-04-13 03:29:53 +00:00
Chris Lattner
519f40ba4e remove one more occurance of this that snuck in 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@21271 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-04-13 02:46:17 +00:00
Chris Lattner
2942e9c301 Remove support for ZERO_EXTEND_INREG. This pessimizes code, genering stuff 
like this:

        ldah $1,1($31)
        lda $1,-1($1)
        and $0,$1,$24

instead of this:

        zap $0,252,$24

To get this back, the selector should recognize the ISD::AND case where this
happens and emit the appropriate ZAP instruction.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@21270 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-04-13 02:43:40 +00:00
Chris Lattner
6ac614a4f2 Remove special handling of ZERO_EXTEND_INREG. This pessimizes code, causing 
things like this:

       mov r9 = 65535;;
       and r8 = r8, r9;;

To be emitted instead of:

        zxt2 r8 = r8;;

To get this back, the selector for ISD::AND should recognize this case.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@21269 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-04-13 02:41:52 +00:00
Chris Lattner
c951d87fe9 Elimate handling of ZERO_EXTEND_INREG. This causes the PPC backend to emit 
andi instructions instead of rlwinm instructions for zero extend, but they
seem like they would take the same time.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@21268 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-04-13 02:40:26 +00:00
Chris Lattner
91302a10ae Z_E_I is gone 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@21267 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-04-13 02:39:05 +00:00
Nate Begeman
b882752bd0 Fold shift by size larger than type size to undef 
Make llvm undef values generate ISD::UNDEF nodes


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@21261 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-04-12 23:12:17 +00:00
Nate Begeman
9765c25eb7 Implement setcc op, -1 sequences 
Remove dead setcc op, 0 sequences
Coming later: generalization of op, imm


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@21260 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-04-12 21:22:28 +00:00
Duraid Madina
e8fd25f5c5 * OK, after changing to use liveIn/liveOut instead of IDEFs, 
to avoid redundant mov out3=r44 type instructions, we need to
tell the register allocator the truth about out? registers.

FIXME: unfortunately, since the list of allocatable registers is immutable,
we can't simply 'delete r127' from the allocation order, say, if 'out0' is
used. The only correct thing we can do is have a linear order of regs:

out7, out6 ... out2, out1, out0, r32, r33, r34 ... r126, r127

and slide a 'window' of 96 registers along this line, depending on how many
of the out? regs a function actually uses. The only downside of this is
that the out? registers will be allocated _first_, which makes the
resulting assembly ugly. :( Note this in the README. Hope this gets fixed
soon. :) (note the 3rd person speech there)


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@21252 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-04-12 18:42:59 +00:00
Andrew Lenharth
0b04b5d562 Get rid of idefs for arguments (oops) 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@21251 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-04-12 17:47:57 +00:00
Andrew Lenharth
e1c5a00e8b Get rid of idefs for arguments 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@21250 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-04-12 17:35:16 +00:00
Chris Lattner
9c24ba642e Put out* into the allocation order, allowing the register allocator to 
coallesce moves into outgoing args.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@21249 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-04-12 15:12:51 +00:00
Chris Lattner
ea6f770fb0 Make sure to realize that calls use their argument regs 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@21248 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-04-12 15:12:19 +00:00
Duraid Madina
ca494fddcd stop emitting IDEFs for args - change to using liveIn/liveOut 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@21247 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-04-12 14:54:44 +00:00
Nate Begeman
7af0248af4 Initial support for allocation condition registers 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@21246 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-04-12 07:04:16 +00:00
Nate Begeman
9f833d3085 Implement bitfield clears 
Implement divide by negative power of two


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@21240 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-04-12 00:10:02 +00:00
Nate Begeman
ef9531efed Update PPC readme. Remove things that are done or aren't ppc specific 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@21232 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-04-11 20:48:57 +00:00
Chris Lattner
30e82431b3 IA64 supports this operation. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@21228 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-04-11 18:55:36 +00:00
Chris Lattner
5eef9f3bc9 ORo sets CR0 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@21227 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-04-11 15:03:48 +00:00
Chris Lattner
6b4ea2cfa2 Revert the previous patch, which I didn't mean to check in. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@21226 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-04-11 15:03:41 +00:00
Chris Lattner
26d4fdb968 Fix a minor bug (ORo didn't mark that it set CR0). 
Refactor how . instructions are handled.  In particular, instead of passing
the RC flag all the way up the inheritance hierarchy, just make a new tblgen
class 'DOT' which can be added to an instruction definition.

For example, instead of this:

-def AND  : XForm_6<31,  28, 0, 0, 0, (ops GPRC:$rA, GPRC:$rS, GPRC:$rB),
-let Defs = [CR0] in
-def ANDo : XForm_6<31,  28, 1, 0, 0, (ops GPRC:$rA, GPRC:$rS, GPRC:$rB),
-                   "and. $rA, $rS, $rB">;

We now have this:

+def AND  : XForm_6<31,  28, 0, 0, (ops GPRC:$rA, GPRC:$rS, GPRC:$rB),
                    "and $rA, $rS, $rB">;


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@21225 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-04-11 15:01:39 +00:00
Duraid Madina
21478e55db hmm, should probably change addImm() to take 64-bit arguments one day anyway. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@21224 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-04-11 07:16:39 +00:00
Nate Begeman
c7bd4827cd Add recording variants of ISD::AND and ISD::OR. This kills almost 1000 
(1.5%) instructions in 186.crafty


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@21222 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-04-11 06:34:10 +00:00
Duraid Madina
5ef2ec9929 assorted fixes: 
* clean up immediates (we use 14, 22 and 64 bit immediates now. sane.)
  * fold r0/f0/f1 registers into comparisons against 0/0.0/1.0
  * fix nasty thinko - didn't use two-address form of conditional add
    for extending bools to integers, so occasionally there would be
    garbage in the result. it's amazing how often zeros are just
    sitting around in registers ;) - this should fix a bunch of tests.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@21221 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-04-11 05:55:56 +00:00
Nate Begeman
709c806a1e Fix another fixme: factor out the constant fp generation code. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@21207 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-04-10 06:06:10 +00:00
Nate Begeman
c5b1cd22b5 Fix 64 bit argument loading that straddles the args in regs / args on stack 
boundary.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@21206 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-04-10 05:53:14 +00:00
Nate Begeman
340f290783 Remove unnecessary Implicit Defs. Since r0 is not in allocation, we do not 
have to inform the register allocator it might be stepped on.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@21202 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-04-10 03:59:42 +00:00
Nate Begeman
27499e3f1b Make sure that BRCOND branches can be converted into long branches too. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@21198 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-04-10 01:48:29 +00:00
Nate Begeman
a0e3e9474f Don't hand ISD::CALL nodes off to SelectExprFP. This fixes siod. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@21197 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-04-10 01:14:13 +00:00
Chris Lattner
51d2ed976f rename getPPCOpcodeForSetCCNumber -> getPPCOpcodeForSetCCOpode to be more 
correct.  Remove the EmitComparison retvalue, as it is always the first arg.

Fix a place where we incorrectly passed in the setcc opcode instead of the
setcc number, causing us to miscompile crafty.  Crafty now works!


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@21195 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-04-10 01:03:31 +00:00
Nate Begeman
706471e291 fix ISD::BRCONDTWOWAY codegen to not deference the end() iterator 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@21193 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-04-09 23:35:05 +00:00
Chris Lattner
9184bfbbf4 Fix CodeGen/Generic/2005-05-09-GlobalInPHI.ll, which was reduced from 254.gap. 
This caused the "use before a def" assertion on some programs.

With this patch, 254.gap now passes with the PPC backend.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@21191 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-04-09 22:05:17 +00:00
Chris Lattner
91277ea45c do not set the root to null if an argument is dead 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@21188 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-04-09 21:23:24 +00:00
Nate Begeman
cd08e4cb7e Add rlwnm instruction for variable rotate 
Generate rotate left/right immediate
Generate code for brcondtwoway
Use new livein/liveout functionality


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@21187 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-04-09 20:09:12 +00:00
Chris Lattner
27ee3a332d Fix a crash on 173.applu by asking for a constant bigger than 32-bits. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@21185 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-04-09 19:47:21 +00:00
Chris Lattner
f429a3e0f6 Switch this instruction selector over to using liveins and liveouts, eliminating 
implicit defs on entry to the function.  yaay :)


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@21184 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-04-09 16:32:30 +00:00
Chris Lattner
4c52f0ec8c Use live out sets for return values instead of imp_defs, which is cleaner and faster. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@21181 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-04-09 15:23:56 +00:00
Duraid Madina
e00e5ded51 ok, the "ia64 has a boatload of registers" joke stopped being funny today ;) 
* fix overallocation of integer (stacked) registers: we can't allocate
  registers for local use if they are required as output registers

this fixes 'toast' in the test suite, and all sorts of larger programs
like bzip2 etc.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@21178 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-04-09 11:53:00 +00:00
Nate Begeman
af4ab1b103 Optimize FSEL a bit for fneg arguments. This fixes the recently added test 
case so that we emit

_test_fneg_sel:
.LBB_test_fneg_sel_0:   ;
        fsel f1, f1, f3, f2
        blr

instead of:

_test_fneg_sel:
.LBB_test_fneg_sel_0:   ;
        fneg f0, f1
        fneg f0, f0
        fsel f1, f0, f3, f2
        blr


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@21177 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-04-09 09:33:07 +00:00
Chris Lattner
67ac5f459e Fix CodeGen/SparcV9/2005-05-09-GEP-Crash.ll a crash on some specfp program 
lets hope this doesn't break other programs with induced entropy


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@21174 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-04-09 06:27:14 +00:00
Chris Lattner
da4d4694a8 This target does not support/want ISD::BRCONDTWOWAY 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@21164 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-04-09 03:22:37 +00:00
Chris Lattner
644db4ec5f This target does not yet support ISD::BRCONDTWOWAY 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@21163 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-04-09 03:22:30 +00:00
Nate Begeman
e88aa5b4d1 64b: Expand S/UREM 
32b: No longer pattern match fneg(fsub(fmul)) as fnmsub
     Pattern match fsub a, mul(b, c) as fnmsub
     Pattern match fadd a, mul(b, c) as fmadd
Those changes speed up hydro2d by 2.5%, distray by 6%, and scimark by 8%


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@21161 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-04-09 03:05:51 +00:00
Nate Begeman
a9532d5dde Fix 64b shifts 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@21159 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-04-08 23:45:01 +00:00
Nate Begeman
f3f2d6d378 Match Mac OS X 64 bit calling conventions 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@21157 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-04-08 21:26:05 +00:00
Andrew Lenharth
a32b9e31c6 collect a few statistics, factor constants (constant loading and mult), fix logic operation pattern matchs, supress FP div when int dividing by a constant 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@21156 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-04-08 17:28:49 +00:00
Duraid Madina
6dcceb5ecb fix bogus division-by-power-of-2 (was wrong for negative input, adds extr insn) 
fix hack in division (clean up frcpa instruction)


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@21153 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-04-08 10:01:48 +00:00
Nate Begeman
7e7fadd2ea Optimized code sequences for setcc reg, 0 
Optimized code sequence for (a < 0) ? b : 0


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@21150 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-04-07 20:30:01 +00:00
Andrew Lenharth
d3355e22a7 Alpha zero extends setcc results 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@21149 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-04-07 20:11:32 +00:00
Chris Lattner
cbd06fc3d7 PowerPC zero extends setcc results 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@21147 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-04-07 19:41:49 +00:00
Chris Lattner
6659bd7592 X86 zero extends setcc results 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@21146 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-04-07 19:41:46 +00:00
Andrew Lenharth
2966e84a8d fix a small optimization opertunity and make gcc happy 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@21143 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-04-07 18:15:28 +00:00
Andrew Lenharth
320174f009 fixup magic constant making code. tested by thousands of random divisions.... by 10000. ok, so random divisors would be good too, but this at least fixes some things 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@21140 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-04-07 17:19:16 +00:00
Andrew Lenharth
9bf59d7ed2 lowercase instructions, makes diff happier 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@21139 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-04-07 17:17:48 +00:00
Andrew Lenharth
273a1f956f It wasn't happy about this either 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@21133 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-04-07 14:18:13 +00:00
Andrew Lenharth
706be918ca Yea, it wasn't happy 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@21132 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-04-07 13:55:53 +00:00
Duraid Madina
e6a0b6cbda teach asmprinter to print s8/s14 operands 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@21131 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-04-07 12:34:36 +00:00
Duraid Madina
f55e403ef9 codegen immediate forms of add/sub/shift 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@21130 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-04-07 12:33:38 +00:00
Duraid Madina
18c0c6bcc4 add immediate forms of add, sub, shift 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@21129 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-04-07 12:32:24 +00:00
Nate Begeman
7ddecb4186 Pattern match bitfield insert, which helps shift long by immediate, among 
other things.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@21127 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-04-06 23:51:40 +00:00
Nate Begeman
020ef42c19 Fix some shift bugs 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@21126 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-04-06 22:42:08 +00:00
Alkis Evlogimenos
aeca558788 Make these 64 bit constants so that this compiles on x86-32 as well. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@21125 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-04-06 22:09:40 +00:00
Andrew Lenharth
a565c275b5 added sdiv by 2^k and works for neg divisors also 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@21124 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-04-06 22:03:13 +00:00
Andrew Lenharth
f77f395043 fix copy/paste errors, and add imm support to SxADDQ and SxSUBQ 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@21121 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-04-06 20:59:59 +00:00
Chris Lattner
6d027f2e6f Fix SingleSource/Regression/C/2005-05-06-LongLongSignedShift.c, we were not 
properly sign extending the top of the result of a 64-bit shift right by
a constant > 32.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@21120 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-04-06 20:59:35 +00:00
Andrew Lenharth
4b8ac1559a Added Nate's div by constant stuff, also scaled operations! 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@21116 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-04-06 20:25:34 +00:00
Chris Lattner
ce91ec9ae6 Fix a namespace issue, reported by Vladimir Merzliakov! 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@21115 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-04-06 19:45:39 +00:00
Duraid Madina
4826a0786d steal sampo's div-by-constant-power-of-2 stuff 
thanks sampo!!


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@21113 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-04-06 09:55:17 +00:00
Duraid Madina
b366a02ff2 add fms instruction 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@21112 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-04-06 09:54:09 +00:00
Nate Begeman
27b4c23b80 Fixed version of optimized integer divide is now fixed. Calculate the 
quotient, not the remainder.  Also, make sure to remove the old div operand
from the ExprMap and let SelectExpr insert the new one.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@21111 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-04-06 06:44:57 +00:00
Duraid Madina
b70c2f3ef7 lie a bit and say that r1/r12 (GP/SP) _aren't_ callee-save, as we take 
care of this ourselves


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@21110 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-04-06 06:18:36 +00:00
Duraid Madina
4ee131ffa8 make sure 'special' registers don't get allocated 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@21109 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-04-06 06:17:54 +00:00
Chris Lattner
8db0af1c8d Add (untested) support for MULHS and MULHU. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@21107 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-04-06 04:21:07 +00:00
Chris Lattner
1e6a71524e add signed versions of the extra precision multiplies 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@21106 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-04-06 04:19:22 +00:00
Nate Begeman
8f52980f03 Turn off the div -> mul optimization until it works correctly 100% of the 
time.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@21105 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-04-06 03:36:33 +00:00
Nate Begeman
815d6dac1e Add support for MULHS and MULHU nodes 
Have LegalizeDAG handle SREM and UREM for us
Codegen SDIV and UDIV by constant as a multiply by magic constant instead
of integer divide, which is very slow.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@21104 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-04-06 00:25:27 +00:00
Andrew Lenharth
2513ddc239 added lowerargs support for varargs 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@21101 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-04-05 20:51:46 +00:00
Nate Begeman
ad5f65c74b Behold, rlwinm with certain immediate arguments is printed as the much more 
readable slwi or srwi (shift left/right word immediate).


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@21099 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-04-05 18:19:50 +00:00
Nate Begeman
a3829d5580 Fix cut & paste errors (32->64), and codegen float->int more optimally. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@21098 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-04-05 17:32:30 +00:00
Tanya Lattner
ac6e2dbf52 Updated to use dep analyzer. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@21097 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-04-05 16:36:44 +00:00
Nate Begeman
d3e6b94020 Remove 64 bit simple ISel, it never worked correctly 
Add initial (buggy) implementation of 64 bit pattern ISel


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@21096 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-04-05 08:51:15 +00:00
Nate Begeman
c8c5c8f0fa Back out the previous change to SelectBranchCC, since there are cases it 
could miscompile.  A correct solution will be found in the near future.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@21095 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-04-05 04:32:16 +00:00
Nate Begeman
439b444cad Rename canUseAsImmediateForOpcode to getImmediateForOpcode to better 
indicate that it is not a boolean function.
Properly emit the pseudo instruction for conditional branch, so that we
  can fix up conditional branches whose displacements are too large.
Reserve the right amount of opcode space for said pseudo instructions.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@21094 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-04-05 04:22:58 +00:00
Nate Begeman
80196b1331 Implement SDIV by power of 2 as srawi/addze rather than load imm, divw 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@21091 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-04-05 00:15:08 +00:00
Nate Begeman
93075ec0a5 Pattern match fp mul-add, mul-sub, neg-mul-add, and neg-mul-sub 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@21090 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-04-04 23:40:36 +00:00
Nate Begeman
178bb34ee5 Add support for multiply-add, multiply-sub, and their negated versions 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@21089 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-04-04 23:01:51 +00:00
Nate Begeman
d860aa62ac Make sure that arg regs used by the call instruction are marked as such, so 
that regalloc doesn't cleverly reuse early arg regs loading later arg regs.
This fixes almost all outstanding failures in the pattern isel.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@21086 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-04-04 22:17:48 +00:00
Nate Begeman
04ec80173b Remove unnecessary register copy now that regalloc is fixed 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@21085 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-04-04 21:48:13 +00:00
Nate Begeman
c3e2db407e i1 loads should also be from the low byte of the argument word. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@21077 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-04-04 09:09:00 +00:00
Nate Begeman
e584668f04 Fix i64 return, fix CopyFromReg 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@21076 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-04-04 06:52:38 +00:00
Duraid Madina
6e02e6842a fix SREM/UREM, which gave incorrect results for x%y if x was zero. This is 
an ugly hack, but it seems to work. I should fix this properly and add a test
as well.

fixes multisource/obsequi (maybe others)


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@21075 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-04-04 05:05:52 +00:00
Duraid Madina
09c61b9c19 add implicit use op 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@21074 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-04-04 04:50:57 +00:00
Nate Begeman
6644d4c933 Full varargs support. All of UnitTests now passes 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@21070 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-04-03 23:11:17 +00:00
Nate Begeman
4ec0cbdf15 Pass the correct value for the chain to the store 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@21066 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-04-03 22:22:56 +00:00
Nate Begeman
fa55470e39 Fix SHL_PARTS 
Start implementation of integer varargs


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@21065 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-04-03 22:13:27 +00:00
Andrew Lenharth
63b720ac7c is this simpler? I think it is simpler. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@21064 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-04-03 20:35:21 +00:00
Andrew Lenharth
500d025bd9 fix 101 regressions 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@21063 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-04-03 18:24:50 +00:00
Duraid Madina
162a837f63 .bss is no problem here. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@21061 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-04-03 14:52:01 +00:00
Nate Begeman
aa73a9f16f Keeping up with the Joneses. 
Implement not, nor, nand, and eqv


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@21060 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-04-03 11:20:20 +00:00
Andrew Lenharth
10c085b525 Select optimization 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@21051 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-04-02 22:32:39 +00:00
Andrew Lenharth
0eaf6ce2ef Try several things. 1) drop /i from FP ops 2) factor out FP to Int moves and provide 21264 support for those 3) match not 4) match ornot andnot xornot 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@21046 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-04-02 21:06:51 +00:00
Andrew Lenharth
7332f3e05d FNEG/FABS/UNDEF 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@21029 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-04-02 19:11:07 +00:00
Andrew Lenharth
30b46d41bc FNEG/FABS 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@21028 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-04-02 19:04:58 +00:00
Duraid Madina
32c46f33b7 ia64 asmprinter fixes: 
- turn off assembler's autoalignment
  - set FunctionAddrPrefix/Suffix so that .data8 entries pointing to
    functions have their value wrapped in @fptr(), so that a function
    descriptor will be materialized for that function.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@21025 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-04-02 12:30:47 +00:00
Duraid Madina
75c9fcbdcc support IDEF, fnegabs (thanks sampo) 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@21023 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-04-02 10:33:53 +00:00
Duraid Madina
5c156b7473 add fnegabs op 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@21022 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-04-02 10:06:27 +00:00
Nate Begeman
27eeb00a1a Set shift amount to Extend 
Implement ISD::FABS and ISD::FNEG nodes
Implement SHL_PARTS, SRL_PARTS, and SRA_PARTS
Generate PowerPC 'fneg', 'fabs', and 'fnabs' instructions


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@21018 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-04-02 05:59:34 +00:00
Chris Lattner
b7edaa1d08 add support for FABS and FNEG 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@21015 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-04-02 05:30:17 +00:00
Duraid Madina
a7ee8b8f04 add support FNEG and FABS 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@21012 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-04-02 05:18:38 +00:00
Chris Lattner
43fdea070c This target doesn't support fabs/fneg yet. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@21010 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-04-02 05:03:24 +00:00
Chris Lattner
b1f26fb921 add an fabs instr 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@21006 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-04-02 04:31:56 +00:00
Chris Lattner
b38a7495da Add support for 64-bit shifts. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@21005 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-04-02 04:01:14 +00:00
Nate Begeman
27523a1c92 Fix i64 returns 
Generate PowerPC 'subfic' instruction when appropriate


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@20995 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-04-02 00:42:16 +00:00
Chris Lattner
7ce7eff54c Add support for ISD::UNDEF to the X86 be 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@20990 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-04-01 22:46:45 +00:00
Nate Begeman
fc1b1dad88 Add ISD::UNDEF node 
Teach the SelectionDAG code how to expand and promote it
Have PPC32 LowerCallTo generate ISD::UNDEF for int arg regs used up by fp
  arguments, but not shadowing their value.  This allows us to do the right
  thing with both fixed and vararg floating point arguments.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@20988 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-04-01 22:34:39 +00:00
Chris Lattner
e6fea166c3 Fix another PATypeHolder error, contributed by Bill Wendling! 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@20983 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-04-01 15:41:30 +00:00
Duraid Madina
69c8e20aa1 repair mindless SELECT waste. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@20982 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-04-01 10:35:00 +00:00
Nate Begeman
6cb2e1b124 Fix Olden/bh, CR0 was being set in the wrong order 
LowerCallTo and ISD::CALL are going to need to be modified, regs are being
set in the wrong order.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@20981 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-04-01 08:57:43 +00:00
Nate Begeman
31318e4b6c Also apply Chris's fix to FP select and SETCC 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@20979 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-04-01 07:21:30 +00:00
Chris Lattner
3071019026 Move the selection of the arms of the select operation up to the conditional 
part to make sure we get the side effects and to avoid confusing the CFG.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@20977 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-04-01 07:10:02 +00:00
Nate Begeman
a7e11a4bb5 Fix stores to global addresses 
Fix calls with no arguments


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@20975 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-04-01 05:57:17 +00:00
Nate Begeman
04730361b5 Support indexed loads and stores. This drops Shootout/matrix time from 
18.8 to 14.8 seconds.  The Pattern ISel is now often faster than the
Simple ISel, esp. on memory intensive code.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@20973 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-04-01 04:45:11 +00:00
Nate Begeman
6b55997df5 Implement FP_TO_SINT and FP_TO_UINT 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@20972 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-04-01 02:59:27 +00:00
Nate Begeman
6d369ccae0 Add support for adding 0.0 and -0.0 to the constant pool, since we lie and 
say that we support them, for the purposes of generating fsel instructions.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@20970 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-04-01 01:08:07 +00:00
Nate Begeman
dffcfccc13 Factor out common code, support FP comparison in folded SetCC 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@20969 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-04-01 00:32:34 +00:00
Nate Begeman
3e89716ad7 fsel generation for f32 and f64 select 
generate compare immediate for integer compare with constant
fold setcc into branch
fold setcc into select

Code generation quality for Shootout is now on par with the Simple ISel


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@20968 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-03-31 23:55:40 +00:00
Andrew Lenharth
5e99dd9c2b make fp div trick dependend on flag 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@20967 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-03-31 22:02:25 +00:00
Andrew Lenharth
95762124a1 PCMarker support for DAG and Alpha 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@20965 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-03-31 21:24:06 +00:00
Duraid Madina
beeaab28a5 Assorted fixes: 
* Stop being pessimistic about output register allocation
  * Start to handle function descriptors: compute target GPs and so on
  when doing indirect calls etc. Not there yet, though. For the moment,
  we try to use _indirect_ branches wherever possible, to stress test
  function descriptors.
  * FP divide-by-zero should work now
  * add varargs (it doesn't work, though)

At this point, all of SingleSource passes (modulo C++ tests that are due
to issues with the CFE, see note in the README.) Much of MultiSource also
passes although there's still a ton of bugs around. Something for me to
work on tomorrow, then. :)


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@20960 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-03-31 12:31:11 +00:00
Duraid Madina
1f867b103d * declare local common symbols as such (.lcomm, not merely .common) 
* begin great adventure into correct function descriptor materialization


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@20956 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-03-31 07:40:24 +00:00
Duraid Madina
290f64c1cb daintyness 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@20955 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-03-31 07:36:43 +00:00
Duraid Madina
291e1266c1 add what we need to fudge a 'floating point conditional move', this is 
used to get FP div-by-zero working properly (shunt the right answer
depending on how frcpa sets its predicate output)


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@20954 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-03-31 07:32:32 +00:00