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Author SHA1 Message Date
Chris Lattner
50ad7c3f54 fold comparisons of gep'd alloca points with null to false, 
implementing PR12013.  We now compile the testcase to:

__Z4testv:                              ## @_Z4testv
## BB#0:                                ## %_ZN4llvm15SmallVectorImplIiE9push_backERKi.exit
	pushq	%rbx
	subq	$64, %rsp
	leaq	32(%rsp), %rbx
	movq	%rbx, (%rsp)
	leaq	64(%rsp), %rax
	movq	%rax, 16(%rsp)
	movl	$1, 32(%rsp)
	leaq	36(%rsp), %rax
	movq	%rax, 8(%rsp)
	leaq	(%rsp), %rdi
	callq	__Z1gRN4llvm11SmallVectorIiLj8EEE
	movq	(%rsp), %rdi
	cmpq	%rbx, %rdi
	je	LBB0_2
## BB#1:
	callq	_free
LBB0_2:                                 ## %_ZN4llvm11SmallVectorIiLj8EED1Ev.exit
	addq	$64, %rsp
	popq	%rbx
	ret

instead of:

__Z4testv:                              ## @_Z4testv
## BB#0:
	pushq	%rbx
	subq	$64, %rsp
	xorl	%eax, %eax
	leaq	(%rsp), %rbx
	addq	$32, %rbx
	movq	%rbx, (%rsp)
	movq	%rbx, 8(%rsp)
	leaq	64(%rsp), %rcx
	movq	%rcx, 16(%rsp)
	je	LBB0_2
## BB#1:
	movl	$1, 32(%rsp)
	movq	%rbx, %rax
LBB0_2:                                 ## %_ZN4llvm15SmallVectorImplIiE9push_backERKi.exit
	addq	$4, %rax
	movq	%rax, 8(%rsp)
	leaq	(%rsp), %rdi
	callq	__Z1gRN4llvm11SmallVectorIiLj8EEE
	movq	(%rsp), %rdi
	cmpq	%rbx, %rdi
	je	LBB0_4
## BB#3:
	callq	_free
LBB0_4:                                 ## %_ZN4llvm11SmallVectorIiLj8EED1Ev.exit
	addq	$64, %rsp
	popq	%rbx
	ret

This doesn't shrink clang noticably though.

llvm-svn: 150944
 2012-02-20 00:42:49 +00:00
Chandler Carruth
d4b1931dd9 Switch to a more idiomatic way of silencing unused variable warnings in 
release builds. Silences clang's -Wself-assign.

llvm-svn: 150942
 2012-02-20 00:02:49 +00:00
Chandler Carruth
132aecc08e Move constructors out-of-line and flesh out their documentation. No 
functionality changed. This is in preparation for some refactoring of
how this class behaves.

llvm-svn: 150941
 2012-02-20 00:02:47 +00:00
Nick Lewycky
c7e2bbf39f Move EvaluateFunction and EvaluateBlock into a class, and make the class store 
the information that they pass around between them. No functionality change!

llvm-svn: 150939
 2012-02-19 23:26:27 +00:00
Benjamin Kramer
576a9ea6ca Silence operator precedence warning. 
llvm-svn: 150921
 2012-02-19 12:25:07 +00:00
NAKAMURA Takumi
a1af545555 autoconf/m4/visibility_inlines_hidden.m4: Tweak for cygwin-g++-4.5.3. It folded conftest regardress of attributge((noinline)) with >=O1 . 
llvm-svn: 150920
 2012-02-19 12:05:12 +00:00
Ahmed Charles
745c53c2a7 Remove dead code. Improve llvm_unreachable text. Simplify some control flow. 
llvm-svn: 150918
 2012-02-19 11:37:01 +00:00
Ahmed Charles
6e49e54bbb StringRef'ize EmitSourceFileHeader(). 
llvm-svn: 150917
 2012-02-19 11:35:20 +00:00
Craig Topper
da569ead22 Remove some unneeded includes and fix ordering in X86ISelLowering.cpp. Remove unneeded 'using namespace'. 
llvm-svn: 150916
 2012-02-19 07:15:48 +00:00
Lang Hames
88e5e4d72e Add machinery for pushing live ranges onto bundle starts while bundling. 
llvm-svn: 150915
 2012-02-19 07:13:05 +00:00
Lang Hames
bdb4efcb20 Simplify moveEnteringDownFrom rules. 
llvm-svn: 150914
 2012-02-19 06:13:56 +00:00
Craig Topper
c35afe3434 Unify all shuffle mask checking functions take a mask and VT instead of VectorShuffleSDNode. 
llvm-svn: 150913
 2012-02-19 05:41:45 +00:00
Lang Hames
831e129c9d Skip through instructions rather than operands when looking for last use slot. 
llvm-svn: 150912
 2012-02-19 04:38:25 +00:00
NAKAMURA Takumi
4518369791 APFloat::toString(): Fix overrun at scanning. 
FYI, clang/test/SemaTemplate/template-id-printing.cpp had been failing due to it on cygwin-clang.

llvm-svn: 150911
 2012-02-19 03:18:29 +00:00
Lang Hames
8b2e08187a Fix TODO and trailing whitespace. 
llvm-svn: 150910
 2012-02-19 03:09:55 +00:00
Lang Hames
b946cb5e75 Defer sanity checks on live intervals until after all have been updated. Hold (LiveInterval, LiveRange) pairs to update, rather than vregs. 
llvm-svn: 150909
 2012-02-19 03:00:30 +00:00
Craig Topper
7582570aff Make a bunch of X86ISelLowering shuffle functions static now that they are no longer needed by isel. 
llvm-svn: 150908
 2012-02-19 02:53:47 +00:00
Jia Liu
e9bdee01e7 comment fix ARM.h 
llvm-svn: 150904
 2012-02-19 02:04:03 +00:00
Jia Liu
6bb2f0f0e4 some comment fix for X86 and ARM 
llvm-svn: 150902
 2012-02-19 02:03:36 +00:00
Craig Topper
cfbfa3dcd1 Add vmfunc instruction to X86 assembler and disassembler. 
llvm-svn: 150899
 2012-02-19 01:39:49 +00:00
Ahmed Charles
b1856af87c Fix issue with bitwise and precedence. 
llvm-svn: 150897
 2012-02-18 22:56:41 +00:00
Talin
777c85d862 Hashing.h - utilities for hashing various data types. 
llvm-svn: 150890
 2012-02-18 21:00:49 +00:00
Rafael Espindola
6be26e6aa6 White space fixes. 
llvm-svn: 150886
 2012-02-18 19:46:02 +00:00
Rafael Espindola
64fe8ada6e Temporarily disable this assert. Looks like it found a similar issue when 
building bullet.

llvm-svn: 150885
 2012-02-18 17:51:43 +00:00
Rafael Espindola
5154b9bedb Don't skip debug instructions when looking for the insertion point of 
the cast. If we do, we can end up with

   inst1
   ---------------  < Insertion point
   dbg inst
   new inst

instead of the desired

   inst1
   new inst
   ---------------  < Insertion point
   dbg inst

Another option would be for InsertNoopCastOfTo (or its callers) to move the
insertion point and we would end up with

   inst1
   dbg inst
   new inst
   ---------------  < Insertion point

but that complicates the callers. This fixes PR12018 (and firefox's build).

llvm-svn: 150884
 2012-02-18 17:22:58 +00:00
Jia Liu
b077b6085d Emacs-tag and some comment fix for all ARM, CellSPU, Hexagon, MBlaze, MSP430, PPC, PTX, Sparc, X86, XCore. 
llvm-svn: 150878
 2012-02-18 12:03:15 +00:00
David Meyer
7499ae53ca On Cygwin/MingW, add SharedLibDir and LLVMToolDir to the library search path, since shared libraries are placed in 'bin'. (static libraries are still in 'lib'). 
llvm-svn: 150876
 2012-02-18 10:03:19 +00:00
Craig Topper
e42fa08789 Add X86InstrSVM.td that I forgot to add in r150873. 
llvm-svn: 150874
 2012-02-18 08:34:12 +00:00
Craig Topper
ecf21d8132 Add X86 assembler and disassembler support for AMD SVM instructions. Original patch by Kay Tiong Khoo. Few tweaks by me for code density and to reduce replication. 
llvm-svn: 150873
 2012-02-18 08:19:49 +00:00
Chandler Carruth
6f19135606 Trivial cleanup to group the generic 'armvN' cases with the 'arm' case, 
etc. No functionality changed.

llvm-svn: 150867
 2012-02-18 04:34:17 +00:00
Eli Friedman
be89455c98 Fix a rather nasty regression from r150690: LHS != RHS does not imply LHS->stripPointerCasts() != RHS->stripPointerCasts(). 
llvm-svn: 150863
 2012-02-18 03:29:25 +00:00
Chad Rosier
617f581b49 Fix documentation. 
llvm-svn: 150860
 2012-02-18 01:38:41 +00:00
Eric Christopher
c2e76f573d Testcase for the previous commit. 
llvm-svn: 150852
 2012-02-18 00:05:45 +00:00
Lang Hames
095e9964bd Bring HMEditor into line with LLVM coding standards. 
llvm-svn: 150851
 2012-02-17 23:43:40 +00:00
Eric Christopher
325985565a Ignore the lifetime intrinsics in fast-isel. 
llvm-svn: 150848
 2012-02-17 23:03:39 +00:00
Jakob Stoklund Olesen
4aa0e7c7c4 Don't print out pointer values in SUnit::dump(). 
llvm-svn: 150842
 2012-02-17 21:44:51 +00:00
Matt Beaumont-Gay
a45b6e23d0 Sink variable into assert 
llvm-svn: 150841
 2012-02-17 21:40:48 +00:00
Lang Hames
27171ecf20 Add support for regmask slots to HMEditor. Also fixes a comment error. 
llvm-svn: 150840
 2012-02-17 21:29:41 +00:00
Kevin Enderby
36596f0ae8 Fix typo in comment ldopen() -> dlopen(). 
llvm-svn: 150836
 2012-02-17 19:26:00 +00:00
Jakob Stoklund Olesen
c22a5531d8 Handle regmask operands in ARMInstrInfo. 
llvm-svn: 150833
 2012-02-17 19:23:15 +00:00
Kevin Enderby
ba7e6a7525 Put back the initializing the targets in the disassembler API with a comment as 
to why this is needed.  This broke the darwin's otool(1) program.  This change
was made in r144385.

llvm-svn: 150832
 2012-02-17 19:18:29 +00:00
Jakob Stoklund Olesen
dc42602f74 Fix ARMBaseInstrInfo::getInstrLatency for calls. 
Calls always clobber CPSR.

llvm-svn: 150831
 2012-02-17 19:07:59 +00:00
Jakob Stoklund Olesen
bde432b917 Transfer regmasks to MRI. 
MRI keeps track of which physregs have been used. Make sure it gets
updated with all the regmask-clobbered registers.

Delete the closePhysRegsUsed() function which isn't necessary.

llvm-svn: 150830
 2012-02-17 19:07:56 +00:00
Dan Gohman
71b80f9e8c Calls and invokes with the new clang.arc.no_objc_arc_exceptions 
metadata may still unwind, but only in ways that the ARC
optimizer doesn't need to consider. This permits more
aggressive optimization.

llvm-svn: 150829
 2012-02-17 18:59:53 +00:00
Lang Hames
ed9553242f Refactor 'handleMove' code in live intervals. Clients of LiveIntervals won't see 
any changes.

Internally this adds a private inner class HMEditor, to LiveIntervals. HMEditor provides
an API for updating live intervals when code is moved or bundled.

llvm-svn: 150826
 2012-02-17 18:44:18 +00:00
Dan Gohman
eb02ab2f74 Remove a comment about an alternative approach that wouldn't 
actually work, at least as described. LLVM Metadata is not
intended to suppress LLVM IR rules, as it can be stripped at
any time.

llvm-svn: 150821
 2012-02-17 18:33:38 +00:00
Jim Grosbach
f636a3204d Tidy up. 
llvm-svn: 150820
 2012-02-17 17:35:10 +00:00
David Chisnall
57bacb511d Generate the correct EH frame section types on Solaris, this time without breaking other platforms... 
llvm-svn: 150819
 2012-02-17 17:31:15 +00:00
David Chisnall
d237b9b330 Revert r150814. It turns out that there is a good reason for this after all... 
llvm-svn: 150818
 2012-02-17 16:51:02 +00:00
Jakob Stoklund Olesen
355efd71af Revert r150288, "Allow Post-RA LICM to hoist reserved register reads." 
This caused miscompilations on out-of-tree targets, and possibly i386 as
well.

I'll find some other way of hoisting %rip-relative loads from loops
containing calls.

llvm-svn: 150816
 2012-02-17 16:40:44 +00:00