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14226 Commits

Author SHA1 Message Date
Owen Anderson f3dd3e2bfd Clean up and refactor LCSSA a bunch. It should also run faster now, though 
there's still a lot of work to be done on it.

llvm-svn: 28506
 2006-05-26 21:11:53 +00:00
Evan Cheng b92f418408 Vector argument must be passed in memory location aligned on 16-byte boundary. 
llvm-svn: 28505
 2006-05-26 20:37:47 +00:00
Evan Cheng bfb5ea6875 Mac OS X ABI document lied. The first four XMM registers are used to pass 
vector arguments, not three.

llvm-svn: 28504
 2006-05-26 19:22:06 +00:00
Chris Lattner dab43b2b0e Implement Transforms/InstCombine/store.ll:test2. 
llvm-svn: 28503
 2006-05-26 19:19:20 +00:00
Chris Lattner 44a793c3a6 Fix a bug in the bc reader/writer: we were not correctly encoding varargs 
nonccc calls (we were dropping the CC and tail flag).  This broke several
FORTRAN programs.

Testcase here: Regression/Assembler/2006-05-26-VarargsCallEncode.ll

llvm-svn: 28501
 2006-05-26 18:42:34 +00:00
Evan Cheng a01e799927 Minor update to make the code more clear 
llvm-svn: 28499
 2006-05-26 18:39:59 +00:00
Evan Cheng cbfb3d07e0 Update more comments. 
llvm-svn: 28498
 2006-05-26 18:37:16 +00:00
Evan Cheng 763f9b00f0 Fix some comments. 
llvm-svn: 28497
 2006-05-26 18:25:43 +00:00
Evan Cheng 83dc51d7ff No need to handle illegal types. 
llvm-svn: 28496
 2006-05-26 18:22:49 +00:00
Owen Anderson 8eca8910b6 Skeletal LCSSA pass. This is currently non-functional. Expect functionality 
and documentation updates soo.

llvm-svn: 28495
 2006-05-26 13:58:26 +00:00
Rafael Espindola 87bc1a9b0b On ARM, alignment is in bits 
Add lr as a hard coded operand of bx

llvm-svn: 28494
 2006-05-26 10:56:17 +00:00
Evan Cheng 70145f2d5e Remove a couple of bogus casts. 
llvm-svn: 28493
 2006-05-26 08:04:31 +00:00
Evan Cheng 0f5c7936e7 Remove a bogus cast. 
llvm-svn: 28492
 2006-05-26 08:00:14 +00:00
Evan Cheng 29296b844f Minor bug caught by Ashwin Chandra 
llvm-svn: 28491
 2006-05-26 06:22:34 +00:00
Chris Lattner 0e47716e69 Transform things like (splat(splat)) -> splat 
llvm-svn: 28490
 2006-05-26 00:29:06 +00:00
Chris Lattner 12249be286 Introduce a helper function that simplifies interpretation of shuffle masks. 
No functionality change.

llvm-svn: 28489
 2006-05-25 23:48:38 +00:00
Evan Cheng 8aca43e8da Consistency 
llvm-svn: 28488
 2006-05-25 23:31:23 +00:00
Chris Lattner 99155be33f Turn (cast (shuffle (cast)) -> shuffle (cast) if it reduces the # casts in 
the program.  This exposes more opportunities for the instcombiner, and implements
vec_shuffle.ll:test6

llvm-svn: 28487
 2006-05-25 23:24:33 +00:00
Chris Lattner 83f6578b0c extract element from a shuffle vector can be trivially turned into an 
extractelement from the SV's source.  This implement vec_shuffle.ll:test[45]

llvm-svn: 28485
 2006-05-25 22:53:38 +00:00
Evan Cheng 0421aca87a Some clean up. 
llvm-svn: 28483
 2006-05-25 22:38:31 +00:00
Chris Lattner dc1614d93e Add support for the missing FP condition codes 
llvm-svn: 28482
 2006-05-25 22:26:02 +00:00
Evan Cheng 29f805ec65 Remove some dead code. 
llvm-svn: 28481
 2006-05-25 22:25:52 +00:00
Evan Cheng 2554e3d9ba X86 / Cygwin asm / alignment fixes. 
Patch contributed by Anton Korobeynikov!

llvm-svn: 28480
 2006-05-25 21:59:08 +00:00
Chris Lattner 0853700582 Revert a patch that is unsafe, due to out of range array accesses in inner 
array scopes possibly accessing valid memory in outer subscripts.

llvm-svn: 28478
 2006-05-25 21:25:12 +00:00
Evan Cheng 5ee96893ae Build breakage. 
llvm-svn: 28475
 2006-05-25 18:56:34 +00:00
Chris Lattner 1fbb0d38c7 Fix build failure of povray 
llvm-svn: 28473
 2006-05-25 18:06:16 +00:00
Chris Lattner 630bbcef8d Fix Benchmarks/MallocBench/cfrac 
llvm-svn: 28471
 2006-05-25 16:54:16 +00:00
Rafael Espindola 91df1ef41f implement initial version of ARMAsmPrinter::printOperand 
llvm-svn: 28470
 2006-05-25 12:57:06 +00:00
Rafael Espindola 4781610886 port the ARM backend to use ISD::CALL instead of LowerCallTo 
llvm-svn: 28469
 2006-05-25 11:00:18 +00:00
Evan Cheng 009f5f55f7 Turn on -sched-commute-nodes by default. 
llvm-svn: 28465
 2006-05-25 08:37:31 +00:00
Evan Cheng 2a33094284 Switch X86 over to a call-selection model where the lowering code creates 
the copyto/fromregs instead of making the X86ISD::CALL selection code create
them.

llvm-svn: 28463
 2006-05-25 00:59:30 +00:00
Evan Cheng c2cd473d9b CALL node change (arg / sign pairs instead of just arguments). 
llvm-svn: 28462
 2006-05-25 00:57:32 +00:00
Evan Cheng 4582771f3f CALL node change: now including signness of every argument. 
llvm-svn: 28461
 2006-05-25 00:55:32 +00:00
Evan Cheng 4af59dac0b Assert if InflightSet is not cleared after instruction selecting a BB. 
llvm-svn: 28459
 2006-05-25 00:24:28 +00:00
Evan Cheng 1a8e74d113 Clear HandleMap and ReplaceMap after instruction selection. Or it may cause 
non-deterministic behavior.

llvm-svn: 28454
 2006-05-24 20:46:25 +00:00
Reid Spencer 6e64180f03 For PR786: 
Minor tweaks in public headers and a few .cpp files so that LLVM can build
successfully with -pedantic and projects using LLVM with -pedantic don't
get warnings from LLVM. There's still more -pedantic warnings to fix.

llvm-svn: 28453
 2006-05-24 19:21:13 +00:00
Reid Spencer 94531bf367 For PR786: 
Remove a spurious ;

llvm-svn: 28452
 2006-05-24 19:05:21 +00:00
Chris Lattner a643d528bd Patch for a new instcombine xform, patch contributed by Nick Lewycky! 
This implements Transforms/InstCombine/2006-05-10-InvalidIndexUndef.ll

llvm-svn: 28450
 2006-05-24 17:34:30 +00:00
Chris Lattner aa2372562e Patches to make the LLVM sources more -pedantic clean. Patch provided 
by Anton Korobeynikov!  This is a step towards closing PR786.

llvm-svn: 28447
 2006-05-24 17:04:05 +00:00
Chris Lattner 33165c246c Fix CodeGen/Generic/vector.ll:test_div with altivec. 
llvm-svn: 28445
 2006-05-24 00:15:25 +00:00
Chris Lattner b56d22c2f6 Handle SETO* like we handle SET*, restoring behavior after Evan's setcc 
change.  This fixes PowerPC/fnegsel.ll.

llvm-svn: 28443
 2006-05-24 00:06:44 +00:00
Chris Lattner de177e016e Print struct return functions and calls as actually returning the hidden 
argument struct pointer, enabling ABI compatibility for the CBE with
platforms with strange struct-return ABIs.  This fixes 252.eon and
CoyoteBench/fftbench on Darwin/X86 among other things.

llvm-svn: 28442
 2006-05-23 23:39:48 +00:00
Chris Lattner a58f559848 Fix file header comment 
llvm-svn: 28441
 2006-05-23 23:20:42 +00:00
Evan Cheng 7068a93cae Better way to check for vararg. 
llvm-svn: 28440
 2006-05-23 21:08:24 +00:00
Evan Cheng 17e734f0a6 Remove PreprocessCCCArguments and PreprocessFastCCArguments now that 
FORMAL_ARGUMENTS nodes include a token operand.

llvm-svn: 28439
 2006-05-23 21:06:34 +00:00
Chris Lattner 8be5be817c Implement an annoying part of the Darwin/X86 abi: the callee of a struct 
return argument pops the hidden struct pointer if present, not the caller.

For example, in this testcase:

struct X { int D, E, F, G; };
struct X bar() {
  struct X a;
  a.D = 0;
  a.E = 1;
  a.F = 2;
  a.G = 3;
  return a;
}
void foo(struct X *P) {
  *P = bar();
}

We used to emit:

_foo:
        subl $28, %esp
        movl 32(%esp), %eax
        movl %eax, (%esp)
        call _bar
        addl $28, %esp
        ret
_bar:
        movl 4(%esp), %eax
        movl $0, (%eax)
        movl $1, 4(%eax)
        movl $2, 8(%eax)
        movl $3, 12(%eax)
        ret

This is correct on Linux/X86 but not Darwin/X86.  With this patch, we now
emit:

_foo:
        subl $28, %esp
        movl 32(%esp), %eax
        movl %eax, (%esp)
        call _bar
***     addl $24, %esp
        ret
_bar:
        movl 4(%esp), %eax
        movl $0, (%eax)
        movl $1, 4(%eax)
        movl $2, 8(%eax)
        movl $3, 12(%eax)
***     ret $4

For the record, GCC emits (which is functionally equivalent to our new code):

_bar:
        movl    4(%esp), %eax
        movl    $3, 12(%eax)
        movl    $2, 8(%eax)
        movl    $1, 4(%eax)
        movl    $0, (%eax)
        ret     $4
_foo:
        pushl   %esi
        subl    $40, %esp
        movl    48(%esp), %esi
        leal    16(%esp), %eax
        movl    %eax, (%esp)
        call    _bar
        subl    $4, %esp
        movl    16(%esp), %eax
        movl    %eax, (%esi)
        movl    20(%esp), %eax
        movl    %eax, 4(%esi)
        movl    24(%esp), %eax
        movl    %eax, 8(%esi)
        movl    28(%esp), %eax
        movl    %eax, 12(%esi)
        addl    $40, %esp
        popl    %esi
        ret

This fixes SingleSource/Benchmarks/CoyoteBench/fftbench with LLC and the
JIT, and fixes the X86-backend portion of PR729.  The CBE still needs to
be updated.

llvm-svn: 28438
 2006-05-23 18:50:38 +00:00
Evan Cheng ac4f66ff24 -enable-unsafe-fp-math implies -enable-finite-only-fp-math 
llvm-svn: 28437
 2006-05-23 18:18:46 +00:00
Vladimir Prus df1d439849 Fix missing include 
llvm-svn: 28435
 2006-05-23 13:43:15 +00:00
Evan Cheng 1c5b7d12df Incorrect SETCC CondCode used for FP comparisons. 
llvm-svn: 28433
 2006-05-23 06:40:47 +00:00
Evan Cheng ea1450742e Added option -enable-finite-only-fp-math. When on, the codegen can assume that 
FP arithmetic arguments and results are never NaNs or +=Infs. This includes
ignoring parity flag (PF) when checking for FP equality.

llvm-svn: 28432
 2006-05-23 06:39:12 +00:00