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Author SHA1 Message Date
Chris Lattner
5442c034a8 add a missing alias to make us more bug compatible with gcc, PR9378 
llvm-svn: 131874
 2011-05-22 22:31:57 +00:00
Chris Lattner
9275a4413b document thiscall, PR9101 
llvm-svn: 131873
 2011-05-22 22:28:47 +00:00
Chris Lattner
78663aa9f5 implement PR9315, constant folding exp2 in terms of pow (since hosts without 
C99 runtimes don't have exp2).

llvm-svn: 131872
 2011-05-22 22:22:35 +00:00
Renato Golin
759db3cbe3 RTABI chapter 4.3.4 specifies __eabi_mem* calls. Specifically, __eabi_memset accepts parameters (ptr, size, value) in a different order than GNU's memset (ptr, value, size), therefore the special lowering in AAPCS mode. Implementation by Evzen Muller. 
llvm-svn: 131868
 2011-05-22 21:41:23 +00:00
Charles Davis
a4187a96c9 Add methods to parse the SEH directives to the COFFAsmParser. Implement some 
of them, particularly the ones that don't take arguments. Also implement
.seh_proc and .seh_handler.

llvm-svn: 131866
 2011-05-22 21:12:15 +00:00
Chris Lattner
3066a7e5ad add a note. 
llvm-svn: 131863
 2011-05-22 18:28:46 +00:00
Chris Lattner
84f101ea45 add some random notes. 
llvm-svn: 131862
 2011-05-22 18:26:48 +00:00
Evan Cheng
a2e8770368 Teach ValueTracking about x86 crc32 intrinsics. 
llvm-svn: 131861
 2011-05-22 18:25:30 +00:00
Chris Lattner
8ed794f599 Carve out a place in instcombine to put transformations which work knowing that their 
result is non-zero.  Implement an example optimization (PR9814), which allows us to
transform:
  A / ((1 << B) >>u 2)
into:
  A >>u (B-2)

which we compile into:

_divu3:                                 ## @divu3
	leal	-2(%rsi), %ecx
	shrl	%cl, %edi
	movl	%edi, %eax
	ret

instead of:

_divu3:                                 ## @divu3
	movb	%sil, %cl
	movl	$1, %esi
	shll	%cl, %esi
	shrl	$2, %esi
	movl	%edi, %eax
	xorl	%edx, %edx
	divl	%esi, %eax
	ret

llvm-svn: 131860
 2011-05-22 18:18:41 +00:00
Johnny Chen
6e8aeaa2f4 Fix Bug 9386 - ARM disassembler failed to disassemble conditional bx 
Modified the patch to .td file supplied by Jyun-Yan You.  Add a test case and
modified ARMDisassemblerCore.cpp a little bit.

llvm-svn: 131859
 2011-05-22 17:51:04 +00:00
Chris Lattner
44516c3ba3 Fix PR9815: I was trying to get out of "generating code and then 
failing to form a memset, then having to delete it" but my approximation
isn't safe for self recurrent loops.  Instead of doign a hack, just
do it the right way.

llvm-svn: 131858
 2011-05-22 17:39:56 +00:00
Frits van Bommel
df58ece78a Add a parameter to ConstantFoldTerminator() that callers can use to ask it to also clean up the condition of any conditional terminator it folds to be unconditional, if that turns the condition into dead code. This just means it calls RecursivelyDeleteTriviallyDeadInstructions() in strategic spots. It defaults to the old behavior. 
I also changed -simplifycfg, -jump-threading and -codegenprepare to use this to produce slightly better code without any extra cleanup passes (AFAICT this was the only place in -simplifycfg where now-dead conditions of replaced terminators weren't being cleaned up). The only other user of this function is -sccp, but I didn't read that thoroughly enough to figure out whether it might be holding pointers to instructions that could be deleted by this.

llvm-svn: 131855
 2011-05-22 16:24:18 +00:00
Chris Lattner
b2b8de15d8 another typo 
llvm-svn: 131854
 2011-05-22 15:44:02 +00:00
Chris Lattner
ddafd147a2 fix comment typo 
llvm-svn: 131853
 2011-05-22 15:34:37 +00:00
Chris Lattner
6830c25f35 I missed a checking with my GVN change. 
llvm-svn: 131851
 2011-05-22 07:20:02 +00:00
Chris Lattner
2be4296485 insertvalue takes a variable number of arguments, document this, fixing PR9935. 
llvm-svn: 131850
 2011-05-22 07:18:08 +00:00
Chris Lattner
98ce5cd957 fix PR9856, an incorrectly conservative assertion: a global can be 
"stored once" even if its address is compared.

llvm-svn: 131849
 2011-05-22 07:15:13 +00:00
Chris Lattner
6cce3b63ab fix PR9841 by having GVN not process dead loads. This was 
causing it to get into infinite loops when it would widen a 
load (which can necessarily leave around dead loads).

llvm-svn: 131847
 2011-05-22 07:03:34 +00:00
Chris Lattner
dcb6599980 remove a trivial test, make some other tests less trivial. 
llvm-svn: 131846
 2011-05-22 07:02:43 +00:00
Chris Lattner
ed5d5cc74d make this test less trivial. 
llvm-svn: 131845
 2011-05-22 06:59:33 +00:00
Chris Lattner
84d1d4b89c initialize and finalize function passes, pointed out by Cameron. 
llvm-svn: 131843
 2011-05-22 06:44:19 +00:00
Chris Lattner
75adf06d44 fix a bug for hosts without round, PR8893. 
llvm-svn: 131842
 2011-05-22 06:03:53 +00:00
Chris Lattner
9359dea740 move PR9408 here. 
llvm-svn: 131841
 2011-05-22 05:45:06 +00:00
Nick Lewycky
82ddea6aaa Commit test change, forgotten as part of r131838. 
llvm-svn: 131839
 2011-05-22 05:31:47 +00:00
Nick Lewycky
9f7644d549 Teach the inliner to emit llvm.lifetime.start/end, to scope the local variables 
of the inlinee to the code representing the original function.

llvm-svn: 131838
 2011-05-22 05:22:10 +00:00
Chris Lattner
7eb3367809 switch to using a smallvector to avoid allocations for most normal size instructions. 
llvm-svn: 131837
 2011-05-22 04:53:24 +00:00
Chris Lattner
b58a888c57 tidy some things up. 
llvm-svn: 131836
 2011-05-22 04:52:24 +00:00
Chris Lattner
1520c4f4f0 Fix some minor typos and grammar. 
llvm-svn: 131835
 2011-05-22 04:44:48 +00:00
Charles Davis
d74119d139 Implement emission of all Win64 exception tables. Make the COFF streamer emit 
these tables.

llvm-svn: 131833
 2011-05-22 04:15:07 +00:00
Charles Davis
c23700bb65 Make the COFF streamer emit unwind info when processing a .seh_handlerdata 
directive.

Implement emission of Win64 EH unwind info.

Pull in <cassert> in MCWin64EH.h so it can use the assert() macro.

llvm-svn: 131832
 2011-05-22 03:01:05 +00:00
Nick Lewycky
7cc4d86ea6 Fix grammar in test. 
llvm-svn: 131831
 2011-05-22 01:16:00 +00:00
Charles Davis
a537e589c9 Don't allow unaligned offsets and sizes in the Win64 EH directives. 
Also, fix threshold for 'Big' register saves.

llvm-svn: 131830
 2011-05-22 00:56:20 +00:00
Chris Lattner
69a52dd280 random comment cleanups. 
llvm-svn: 131829
 2011-05-22 00:50:53 +00:00
Chris Lattner
9413ffa53b fix a file system case sensitivity issue. 
llvm-svn: 131828
 2011-05-22 00:37:51 +00:00
Chris Lattner
03d83a7b9b remove StandardPasses, it has been replaced with PassManagerBuilder 
llvm-svn: 131827
 2011-05-22 00:30:45 +00:00
Chris Lattner
dd750b0404 switch opt to using PassManagerBuilder.h 
llvm-svn: 131824
 2011-05-22 00:21:33 +00:00
Chris Lattner
a9a8b633ae switch llvm-ld. It has a terrible mechanism that people can add extra 
passes, it should be converted to use extension points.

llvm-svn: 131823
 2011-05-22 00:21:15 +00:00
Chris Lattner
89036e6501 switch bugpoint and liblto to PassManagerBuilder. 
llvm-svn: 131821
 2011-05-22 00:20:07 +00:00
Chris Lattner
6e81571c48 add support for LTO passes. 
llvm-svn: 131820
 2011-05-22 00:14:20 +00:00
Chris Lattner
c383dd2c87 eliminate dependence on StandardPasses.h. The code generator's pass pipeline 
should eventually convert to PMBuilder, but I don't plan to do this.

llvm-svn: 131819
 2011-05-22 00:13:44 +00:00
Charles Davis
49f650f80b Include DataTypes.h from this header to get the uint*_t types. 
llvm-svn: 131817
 2011-05-22 00:05:26 +00:00
Charles Davis
53b696daee Allow access to the .pdata and .xdata sections through the TargetAsmInfo 
class.

llvm-svn: 131816
 2011-05-22 00:03:24 +00:00
Chris Lattner
03847f8199 add an extension point mechanism that allow plugins to add stuff to 
the pass manager.

llvm-svn: 131814
 2011-05-21 23:50:37 +00:00
Nick Lewycky
0539f44b9f Add CreateLifetimeStart and CreateLifetimeEnd to the IRBuilder, with plans to 
use these soon.

llvm-svn: 131812
 2011-05-21 23:14:36 +00:00
Duncan Sands
c228e6bdea Revert commit 131781, to see if it fixes the x86-64 dragonegg buildbot. 
Original log message:
When BasicAA can determine that two pointers have the same base but
differ by a dynamic offset, return PartialAlias instead of MayAlias.
See the comment in the code for details. This fixes PR9971.

llvm-svn: 131809
 2011-05-21 20:54:46 +00:00
Chris Lattner
d2e2d612c0 add a new PassManagerBuilder class to replace StandardPasses.h 
llvm-svn: 131807
 2011-05-21 20:39:42 +00:00
Chris Lattner
777808dcaf add a copy ctor to TargetLibraryInfo. 
llvm-svn: 131806
 2011-05-21 20:09:13 +00:00
Eli Friedman
58beee1262 PR7952: Make isa<> use the same logic as cast<>, so that they both work 
consistently.

llvm-svn: 131803
 2011-05-21 19:13:10 +00:00
Benjamin Kramer
85e86083d5 X86: smulo -> add is now done target-independently in DAGCombiner, remove the patterns. 
llvm-svn: 131801
 2011-05-21 18:32:01 +00:00
Benjamin Kramer
df3070e83d Implement mulo x, 2 -> addo x, x in DAGCombiner. 
llvm-svn: 131800
 2011-05-21 18:31:55 +00:00