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Author SHA1 Message Date
Nate Begeman
b5f8e62d71 Remove a now unused statistic. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@24720 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-12-14 22:56:16 +00:00
Nate Begeman
a07da92624 Use the new predicate support that Evan Cheng added to remove some code 
from the DAGToDAG cpp file.  This adds pattern support for vector and
scalar fma, which passes test/Regression/CodeGen/PowerPC/fma.ll, and
does the right thing in the presence of -disable-excess-fp-precision.

Allows us to match:
void %foo(<4 x float> * %a) {
entry:
  %tmp1 = load <4 x float> * %a;
  %tmp2 = mul <4 x float> %tmp1, %tmp1
  %tmp3 = add <4 x float> %tmp2, %tmp1
  store <4 x float> %tmp3, <4 x float> *%a
  ret void
}

As:

_foo:
        li r2, 0
        lvx v0, r2, r3
        vmaddfp v0, v0, v0, v0
        stvx v0, r2, r3
        blr

Or, with llc -disable-excess-fp-precision,

_foo:
        li r2, 0
        lvx v0, r2, r3
        vxor v1, v1, v1
        vmaddfp v1, v0, v0, v1
        vaddfp v0, v1, v0
        stvx v0, r2, r3
        blr


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@24719 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-12-14 22:54:33 +00:00
Nate Begeman
1dae25e23a Add a case for float just to make sure the patterns for both precisions 
are matching


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@24718 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-12-14 22:51:13 +00:00
Evan Cheng
74164098ff Fixed a typo: line 2323: MOVSX16rm8 -> MOVZX16rm8. This was the cause fo 12/14/2005 hbd failure. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@24717 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-12-14 22:28:18 +00:00
Evan Cheng
8c75ef9228 Added predicate !NoExcessFPPrecision to FMADD, FMADDS, FMSUB, and FMSUBS. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@24716 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-12-14 22:07:12 +00:00
Evan Cheng
58e84a69f5 Added support to specify predicates. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@24715 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-12-14 22:02:59 +00:00
Chris Lattner
3bd5fac76f Fix printing of the instructions. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@24714 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-12-14 22:01:07 +00:00
Evan Cheng
2b52426441 Fixed extload type profile. The 4th operand is a ValueType node with type 
OtherVT, it cannot be compare to type of 1st operand which is an integer type.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@24713 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-12-14 19:40:54 +00:00
Chris Lattner
d4771840fd When folding loads into ops, immediately replace uses of the op with the 
load.  This reduces number of worklist iterations and avoid missing optimizations
depending on folding of things into sext_inreg nodes (which aren't supported by
all targets).
Tested by Regression/CodeGen/X86/extend.ll:test2


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@24712 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-12-14 19:25:30 +00:00
Chris Lattner
e4e49132af new testcase, each function should have one extension instr in it 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@24711 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-12-14 19:24:08 +00:00
Reid Spencer
f574494e13 Remove -start-group and -end-group no-op options, accidentally committed 
in last patch.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@24710 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-12-14 19:08:51 +00:00
Chris Lattner
ad25d4e2df Fix the (zext (zextload)) case to trigger, similarly for sign extends. 
Allow (zext (truncate)) to apply after legalize if the target supports
AND (which all do).

This compiles
short %foo() {
        %tmp.0 = load ubyte* %X         ; <ubyte> [#uses=1]
        %tmp.3 = cast ubyte %tmp.0 to short             ; <short> [#uses=1]
        ret short %tmp.3
}

to:
_foo:
        movzbl _X, %eax
        ret

instead of:

_foo:
        movzbl _X, %eax
        movzbl %al, %eax
        ret

thanks to Evan for pointing this out.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@24709 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-12-14 19:05:06 +00:00
Chris Lattner
6860f6a01c Fix Transforms/ScalarRepl/2005-12-14-UnionPromoteCrash.ll, a crash on undefined 
behavior in 126.gcc on big-endian systems.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@24708 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-12-14 17:23:59 +00:00
Chris Lattner
fa1fb11cdc new (undefined) testcase, distilled from 126.gcc that scalarrepl crashes on 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@24707 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-12-14 17:23:20 +00:00
Chris Lattner
00cb95c9be Fix a miscompilation in crafty due to a recent patch 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@24706 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-12-14 07:58:38 +00:00
Evan Cheng
7a7e8375a9 Added sext and zext patterns. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@24705 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-12-14 02:22:27 +00:00
Evan Cheng
01f318bfca Skip over srcvalue nodes when generating ISEL code. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@24704 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-12-14 02:21:57 +00:00
Evan Cheng
3d2331dba7 Added sextld + zextld DAG nodes. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@24703 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-12-14 02:21:01 +00:00
Evan Cheng
110dec2000 Fold (zext (load x) to (zextload x). 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@24702 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-12-14 02:19:23 +00:00
Nate Begeman
3fb6877cb4 Add support for fmul node of type v4f32. 
void %foo(<4 x float> * %a) {
entry:
  %tmp1 = load <4 x float> * %a;
  %tmp2 = mul <4 x float> %tmp1, %tmp1
  store <4 x float> %tmp2, <4 x float> *%a
  ret void
}

Is selected to:

_foo:
        li r2, 0
        lvx v0, r2, r3
        vxor v1, v1, v1
        vmaddfp v0, v0, v0, v1
        stvx v0, r2, r3
        blr


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@24701 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-12-14 00:34:09 +00:00
Nate Begeman
993aeb2ed9 Prepare support for AltiVec multiply, divide, and sqrt. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@24700 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-12-13 22:55:22 +00:00
Reid Spencer
328ead9fce Adjust the constructor to the Linker class to take an argument that names 
the module being constructed. This is used to correctly name the module.
Previously the name of the linker tool was used which produces confusing
output when the module identifier is used in an error message.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@24699 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-12-13 20:00:37 +00:00
Reid Spencer
2f1890792c Improve ResolveFunctions to: 
a) use better local variable names (OldMT -> OldFT) where "M" is used to
   mean "Function" (perhaps it was previously "Method"?)
b) print out the module identifier in a warning message so that it is
   possible to track down in which module the error occurred.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@24698 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-12-13 19:56:51 +00:00
Chris Lattner
86cb643801 Don't lump the filename and working dir together 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@24697 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-12-13 17:40:33 +00:00
Evan Cheng
85dd889ed6 Add load + store folding srl and sra patterns. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@24696 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-12-13 07:24:22 +00:00
Chris Lattner
d1239b7c69 Use the shared asmprinter code for printing special llvm globals 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@24695 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-12-13 06:32:50 +00:00
Chris Lattner
ed13893ff7 Add a couple more fields, move ctor init list to .cpp file, add support 
for emitting the ctor/dtor list for common targets.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@24694 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-12-13 06:32:10 +00:00
Chris Lattner
a046e0d79f Add ELF and darwin support for static ctors and dtors 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@24693 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-12-13 04:53:51 +00:00
Chris Lattner
deea416570 reindent a loop, unswitch a loop. No functionality changes 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@24692 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-12-13 04:33:58 +00:00
Nate Begeman
d7d746f603 Lowering constant pool entries on ppc exposed a bug in the recently added 
ConstantVec legalizing code, which would return constantpool nodes that
were not of the target's pointer type.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@24691 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-12-13 03:03:23 +00:00
Evan Cheng
c937ffafba Beautify a few patterns. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@24690 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-12-13 02:40:18 +00:00
Evan Cheng
763b029b28 Some shl patterns which do load + store folding. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@24689 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-12-13 02:34:51 +00:00
Evan Cheng
605c415046 A few helper fragments for loads. e.g. (i8 (load addr:$src)) -> (loadi8 addr:$src). Only to improve readibility. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@24688 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-12-13 01:57:51 +00:00
Evan Cheng
0ef3a77bdf Add and, or, and xor patterns which fold load + stores. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@24687 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-12-13 01:41:36 +00:00
Evan Cheng
6cad276c90 Add inc + dec patterns which fold load + stores. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@24686 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-12-13 01:02:47 +00:00
Evan Cheng
5ce4edb967 Add neg and not patterns which fold load + stores. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@24685 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-12-13 00:54:44 +00:00
Evan Cheng
5a38e0210d Missed a couple redundant explicit type casts. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@24684 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-12-13 00:25:07 +00:00
Evan Cheng
9b6b642647 Fix some bad choice of names: i16SExt8 ->i16immSExt8, etc. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@24683 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-12-13 00:14:11 +00:00
Evan Cheng
b3558540b6 * Split immSExt8 to i16SExt8 and i32SExt8 for i16 and i32 immediate operands. 
This enables the removal of some explicit type casts.
* Rename immZExt8 to i16ZExt8 as well.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@24682 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-12-13 00:01:09 +00:00
Evan Cheng
f281e02cbd Add some integer mul patterns. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@24681 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-12-12 23:47:46 +00:00
Evan Cheng
0e65b27e28 Bug fix: CodeGenMap[N] = ... -> CodeGenMap[N.getValue(0)] = ... 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@24680 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-12-12 23:45:21 +00:00
Evan Cheng
481c8e0501 At top of generated isel SelectCode() is this: 
if (!N.Val->hasOneUse()) {
    std::map<SDOperand, SDOperand>::iterator CGMI = CodeGenMap.find(N);
    if (CGMI != CodeGenMap.end()) return CGMI->second;
  }

Suppose a DAG like this:

           X
         ^   ^
        /     \
      USE1    USE2

Suppose USE1 is being selected first and during which X is selected and
returned a new node. After this, USE1 is no longer an use of X. During USE2
selection, X will be selected again since it has only one use!

The fix is to always query CodeGenMap.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@24679 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-12-12 23:22:48 +00:00
Chris Lattner
ac22c83e68 Accept and ignore prefetches for now 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@24678 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-12-12 22:51:16 +00:00
Chris Lattner
58f7963b8b Fix CodeGen/Generic/2005-12-12-ExpandSextInreg.ll 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@24677 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-12-12 22:27:43 +00:00
Chris Lattner
a92dabb259 Testcase for a problem that reid ran into 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@24676 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-12-12 22:27:22 +00:00
Evan Cheng
d160d48a2b Add some sub patterns. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@24675 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-12-12 21:54:05 +00:00
Evan Cheng
e5280536a3 When SelectLEAAddr() fails, it shouldn't cause the side effect of having the 
base or index operands being selected.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@24674 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-12-12 21:49:40 +00:00
Evan Cheng
cbd6ed4d6b For ISD::RET, if # of operands >= 2, try selection the real data dep. operand 
first before the chain.
e.g.
int X;

int foo(int x)
{
  x += X + 37;
  return x;
}

If chain operand is selected first, we would generate:
	movl X, %eax
	movl 4(%esp), %ecx
	leal 37(%ecx,%eax), %eax

rather than
	movl $37, %eax
	addl 4(%esp), %eax
	addl X, %eax

which does not require %ecx. (Due to ADD32rm not matching.)


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@24673 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-12-12 20:32:18 +00:00
Andrew Lenharth
110f2243fc fix FP selects 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@24672 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-12-12 20:30:09 +00:00
Chris Lattner
a763969837 remove some never-completed and now-obsolete code. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@24671 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-12-12 20:12:20 +00:00