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9894cd300e
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3000 Commits

Author SHA1 Message Date
Chris Lattner
9894cd300e All of these labels are off by one now that the unreachable instruction exists 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@17079 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-10-17 05:37:47 +00:00
Nate Begeman
1b75022cd3 Implement bitfield insert by recognizing the following pattern: 
1. optional shift left
2. and x, immX
3. and y, immY
4. or z, x, y
==> rlwimi z, x, y, shift, mask begin, mask end

where immX == ~immY and immX is a run of set bits. This transformation
fires 32 times on voronoi, once on espresso, and probably several
dozen times on external benchmarks such as gcc.

To put this in terms of actual code generated for
struct B { unsigned a : 3; unsigned b : 2; };
void storeA (struct B *b, int v) { b->a = v;}
void storeB (struct B *b, int v) { b->b = v;}

Old:
_storeA:
        rlwinm r2, r4, 0, 29, 31
        lwz r4, 0(r3)
        rlwinm r4, r4, 0, 0, 28
        or r2, r4, r2
        stw r2, 0(r3)
        blr

_storeB:
        rlwinm r2, r4, 3, 0, 28
        rlwinm r2, r2, 0, 27, 28
        lwz r4, 0(r3)
        rlwinm r4, r4, 0, 29, 26
        or r2, r2, r4
        stw r2, 0(r3)
        blr

New:
_storeA:
        lwz r2, 0(r3)
        rlwimi r2, r4, 0, 29, 31
        stw r2, 0(r3)
        blr

_storeB:
        lwz r2, 0(r3)
        rlwimi r2, r4, 3, 27, 28
        stw r2, 0(r3)
        blr


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@17078 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-10-17 05:19:20 +00:00
Chris Lattner
7ff5a32a48 I forgot that sparc no longer uses the shared asmwriter. Give it support 
for undef.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@17075 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-10-17 02:44:45 +00:00
Chris Lattner
d14d5b4223 Add support for unreachable and undef 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@17074 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-10-17 02:42:42 +00:00
Nate Begeman
2d4c98d79b Finally fix one of the oldest FIXMEs in the PowerPC backend: correctly 
flag rotate left word immediate then mask insert (rlwimi) as a two-address
instruction, and update the ISel usage of the instruction accordingly.

This will allow us to properly schedule rlwimi, and use it to efficiently
codegen bitfield operations.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@17068 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-10-16 20:43:38 +00:00
Chris Lattner
9270efcc5f Fix fix fix 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@17057 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-10-16 18:21:50 +00:00
Chris Lattner
5a083b81c4 Add support for undef and unreachable 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@17051 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-10-16 18:14:10 +00:00
Chris Lattner
289a49ab7d ADd support for undef and unreachable 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@17050 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-10-16 18:13:47 +00:00
Chris Lattner
30483b0c84 Teach the X86 backend about unreachable and undef. Among other things, we 
now compile:

'foo() {}' into "ret" instead of "mov EAX, 0; ret"


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@17049 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-10-16 18:13:05 +00:00
Chris Lattner
a9d12c0a56 Add support for unreachable and undef 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@17048 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-10-16 18:12:13 +00:00
Chris Lattner
b7a16ce3b1 Add a missing dependency 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@17031 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-10-16 17:12:55 +00:00
Chris Lattner
f146ab1e51 Fix file header 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@17030 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-10-16 16:37:42 +00:00
Chris Lattner
358a9027a8 Instruction select globals with offsets better. For example, on this test 
case:

int C[100];
int foo() {
  return C[4];
}

We now codegen:

foo:
        mov %EAX, DWORD PTR [C + 16]
        ret

instead of:

foo:
        mov %EAX, OFFSET C
        mov %EAX, DWORD PTR [%EAX + 16]
        ret

Other impressive features may be coming later.

This patch is contributed by Jeff Cohen!


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@17011 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-10-15 05:05:29 +00:00
Chris Lattner
8cce7cd0ae Give the X86 JIT the ability to encode global+disp constants. Patch 
contributed by Jeff Cohen!


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@17010 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-10-15 04:53:13 +00:00
Chris Lattner
d416f086cc Give the X86 asm printer the ability to print out addressing modes that have 
constant displacements from global variables.  Patch by Jeff Cohen!


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@17009 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-10-15 04:44:53 +00:00
Chris Lattner
fb3d844e50 Allow X86 addressing modes to represent globals with offsets. Patch contributed 
by Jeff Cohen!


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@17008 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-10-15 04:43:20 +00:00
Nate Begeman
e0c83a86b0 Better codegen of binary integer ops with 32 bit immediate operands. 
This transformation fires a few dozen times across the testsuite.

For example, int test2(int X) { return X ^ 0x0FF00FF0; }
Old:
_test2:
        lis r2, 4080
        ori r2, r2, 4080
        xor r3, r3, r2
        blr

New:
_test2:
        xoris r3, r3, 4080
        xori r3, r3, 4080
        blr


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@17004 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-10-15 00:50:19 +00:00
Misha Brukman
d36047dbdb The field is called imm22', not simply imm' 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@17003 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-10-14 22:33:32 +00:00
Misha Brukman
3df04c58fc Synthetic instructions RET and RETL need to have all 3 parameters specified 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@17002 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-10-14 22:32:49 +00:00
Misha Brukman
45a68268a4 Class F2_1 already inherits the imm22 field from class F2 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@17001 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-10-14 22:32:24 +00:00
Misha Brukman
009d3f400c Generate the SparcV8 code emitter from .td files 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@17000 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-10-14 21:57:19 +00:00
Misha Brukman
17187e936a * In the F3_1 class, default asi to 0 because it's not currently used 
* In the F3_3 class, remove mention of asi because it's not part of the format


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@16999 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-10-14 21:53:39 +00:00
Brian Gaeke
59e12ed789 Add FSTOI, FDTOI (fp to integer cast) instructions. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@16996 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-10-14 19:39:35 +00:00
Brian Gaeke
8b6c1ff677 Rewrite emitCastOperation, refactoring parts of it into emitIntegerCast, and 
adding emitFPToIntegerCast.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@16995 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-10-14 19:39:34 +00:00
Brian Gaeke
941833a37c Add list of libc procedures we'll use, at some point. 
Update list of currently failing tests.
ADJCALLSTACK* support is done.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@16994 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-10-14 19:39:33 +00:00
Misha Brukman
c982cfad87 * Claim to support machine code emission - return false from 
addPassesToEmitMachineCode()
* Add support for registers and constants in getMachineOpValue()

This enables running "int main() { ret 0 }" via the PowerPC JIT.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@16983 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-10-14 06:39:56 +00:00
Misha Brukman
d37faba5b4 * Include the real (generated) version of getBinaryCodeForInstr() 
* Add implementation of getMachineOpValue() for generated code emitter
* Convert assert()s in unimplemented functions to abort()s so that non-debug
  builds fail predictably
* Add file header comments


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@16981 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-10-14 06:07:25 +00:00
Misha Brukman
bab2adf496 * Make a PPC32-specific code emitter because we have separate classes for 32- 
and 64-bit code emitters that cannot share code unless we use virtual
  functions
* Identify components being built by tablegen with more detail by assigning them
  to PowerPC, PPC32, or PPC64 more specifically; also avoids seeing 'building
  PowerPC XYZ' messages twice, where one is for PPC32 and one for PPC64


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@16980 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-10-14 06:04:56 +00:00
Tanya Lattner
a645750722 Checking in code that works on my simple test case. However, there is still a bug with branches that I need to fix. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@16979 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-10-14 06:04:28 +00:00
Misha Brukman
a671f3b1d4 There is only one field in an instruction, and that is `Inst', the final view of 
the instruction binary format, all others are simply operands and should not
have the `field' label


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@16978 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-10-14 05:55:37 +00:00
Misha Brukman
315d3341fd PowerPC instruction definitions use LittleEndian-style encoding [0..31] 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@16977 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-10-14 05:54:38 +00:00
Misha Brukman
99ee67ab19 Add isLittleEndianEncoding to InstrInfo class, defaults to `off' 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@16976 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-10-14 05:53:40 +00:00
Reid Spencer
d96cb6eaa0 Update to reflect changes in Makefile rules. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@16950 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-10-13 11:46:52 +00:00
Chris Lattner
c71ff4c34b Fix a warning that is emitted on the suns 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@16917 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-10-11 15:50:40 +00:00
Misha Brukman
b15d4c6072 Add ModuloScheduling to the recursive build tree 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@16905 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-10-10 23:36:09 +00:00
Misha Brukman
7da1e6e27c Adjust header file inclusion due to move 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@16904 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-10-10 23:34:50 +00:00
Misha Brukman
0a18934a23 Adjust comment header and paths to refect move 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@16903 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-10-10 23:34:36 +00:00
Reid Spencer
769dd7d5ec Initial version of automake Makefile.am file. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@16898 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-10-10 22:52:14 +00:00
Reid Spencer
adb6c05f91 Add the new InstrSched directory. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@16897 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-10-10 22:51:03 +00:00
Tanya Lattner
420025b04f Added debug information. Fixed several bugs in the reconstruct loop function. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@16895 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-10-10 22:44:35 +00:00
Reid Spencer
81f76b324e Initial version of automake Makefile.am file. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@16893 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-10-10 22:20:40 +00:00
Reid Spencer
9f41a5fe85 Initial version of automake Makefile.am file. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@16885 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-10-10 20:43:57 +00:00
Brian Gaeke
299b39d356 Fix assertion failure when calling or returning from a function which 
returns 'bool' type.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@16884 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-10-10 20:34:17 +00:00
Brian Gaeke
85c08351ce Implement eliminateCallFramePseudoInstr(). 
Wrap a long comment line.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@16883 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-10-10 19:57:21 +00:00
Brian Gaeke
9f0cecd438 Model calls as *both* using *and* killing O0..O5, because callees use the 
argument values passed in (so they're not dead until *after* the call),
and callees are free to modify those registers.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@16882 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-10-10 19:57:20 +00:00
Brian Gaeke
50094edf96 Fix whitespace and wrap some long lines. 
Deal with allocating stack space for outgoing args and copying them into the
correct stack slots (at least, we can copy <=32-bit int args).
We now correctly generate ADJCALLSTACK* instructions.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@16881 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-10-10 19:57:18 +00:00
Chris Lattner
cbb9812d0d bling bling! 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@16873 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-10-10 16:26:13 +00:00
Chris Lattner
83d72bcd11 Instead of silently breaking, print notification of why this doesn't work. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@16870 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-10-09 21:13:51 +00:00
Brian Gaeke
03203b423f update according to tonight's info 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@16866 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-10-09 05:58:27 +00:00
Brian Gaeke
0e2d466ce9 Implement getModuleMatchQuality and getJITMatchQuality so that v8 will be the 
default 32/BE target on sparc hosts, and ppc will continue to be the default
on other hosts.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@16865 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-10-09 05:57:01 +00:00