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Author SHA1 Message Date
NAKAMURA Takumi
0fac05f8e2 test/CodeGen/X86/2012-02-20-MachineCPBug.ll: Fix on generic(non-x86) hosts to add -mattr=+sse. 
llvm-svn: 151053
 2012-02-21 11:56:42 +00:00
Jay Foad
aea6e7df6b Revert r151049 cos it broke the buildbots. 
llvm-svn: 151052
 2012-02-21 11:44:46 +00:00
Chandler Carruth
4cc3bda4d3 Tiny cosmetic change to use the same style for all of the while loops in 
the normalize routine, especially the empty while loops.

llvm-svn: 151050
 2012-02-21 09:29:14 +00:00
Jay Foad
9034028575 PR1210: make uniquing of struct and function types more efficient by 
using a DenseMap and Talin's new GeneralHash, avoiding the need for a
temporary std::vector on every lookup.

Patch by Meador Inge!

llvm-svn: 151049
 2012-02-21 09:25:52 +00:00
Chandler Carruth
22537f932d Replace a hand rolled loop with a lovely StringRef helper we have these 
days. No functionality changed.

llvm-svn: 151048
 2012-02-21 09:12:48 +00:00
Chandler Carruth
b2adf74ff3 Pull the parsing helper functions out of the Triple interface entirely. 
They're private static methods but we can just make them static
functions in the implementation. It makes the implementations a touch
more wordy, but takes another chunk out of the header file.

Also, take the opportunity to switch the names to the new coding
conventions.

No functionality changed here.

llvm-svn: 151047
 2012-02-21 08:53:32 +00:00
Chandler Carruth
12774336b5 Clean up comments that I missed when changing the triple representation. 
Somehow, I even missed the ones I wrote just the other day...

Thanks to Matt for the code review.

llvm-svn: 151045
 2012-02-21 08:31:18 +00:00
Craig Topper
f1056941f6 Reorder some members in MCRegisterClass to remove padding on 64-bit builds. 
llvm-svn: 151043
 2012-02-21 07:36:39 +00:00
Craig Topper
24cc28c7b8 In generated RegisterInfo files, replace a pointer to the end of an array with just the size of the array to avoid relocations. 
llvm-svn: 151041
 2012-02-21 06:54:41 +00:00
Craig Topper
91a96474a1 Merge some tables in generated RegisterInfo file. Store indices into larger table instead of pointers to reduce relocations and shrink table size on 64-bit builds. Shaves ~24K off X86MCTargetDesc.o. Accidentally commited only part of this in r151038. 
llvm-svn: 151039
 2012-02-21 06:23:21 +00:00
Craig Topper
593e720da6 Merge some tables in generated RegisterInfo file. Store indices into larger table instead of pointers to reduce relocations and shrink table size on 64-bit builds. Shaves ~24K off X86MCTargetDesc.o 
llvm-svn: 151038
 2012-02-21 06:22:36 +00:00
Andrew Trick
25ec43e9fe Clear virtual registers after they are no longer referenced. 
Passes after RegAlloc should be able to rely on MRI->getNumVirtRegs() == 0.
This makes sharing code for pre/postRA passes more robust.
Now, to check if a pass is running before the RA pipeline begins, use MRI->isSSA().
To check if a pass is running after the RA pipeline ends, use !MRI->getNumVirtRegs().

PEI resets virtual regs when it's done scavenging.

PTX will either have to provide its own PEI pass or assign physregs.

llvm-svn: 151032
 2012-02-21 04:51:23 +00:00
Andrew Trick
719b2521ef StackSlotColoring does not use a VirtRegMap 
llvm-svn: 151031
 2012-02-21 04:51:19 +00:00
Andrew Trick
f9e876a42c whitespace 
llvm-svn: 151030
 2012-02-21 04:51:17 +00:00
Rafael Espindola
8ef9503d71 Use more idiomatic assert. 
llvm-svn: 151026
 2012-02-21 03:51:14 +00:00
Rafael Espindola
aec58a4177 Avoid warning on non assert builds. 
llvm-svn: 151025
 2012-02-21 03:48:30 +00:00
Chandler Carruth
34c9c293e1 Switch the llvm::Triple class to immediately parse the triple string on 
construction. Simplify its interface, implementation, and users
accordingly as there is no longer an 'uninitialized' state to check for.
Also, fixes a bug lurking in the interface as there was one method that
didn't correctly check for initialization.

llvm-svn: 151024
 2012-02-21 03:39:36 +00:00
Rafael Espindola
232a730f45 It turns out that with the current scev organization ReuseOrCreateCast cannot 
know where users will be added. Because of this, it cannot use
Builder.GetInsertPoint at all.

This patch
* removes the FIXME about adding the assert.
* adds a comment explaining hy we don't have one.
* removes a broken logic that only works for some callers and is not needed
  since r150884.
* adds an assert to caller that would have caught the bug fixed by r150884.

llvm-svn: 151015
 2012-02-21 01:19:51 +00:00
Lang Hames
1b774db571 Fix some bugs in HMEditor's moveAllOperandsInto logic. 
llvm-svn: 151006
 2012-02-21 00:00:36 +00:00
Nick Lewycky
b9cf2477b9 Check for the correct size in the invariant marker. 
llvm-svn: 151003
 2012-02-20 23:32:26 +00:00
Evan Cheng
3bffc22fc2 Fix machine-cp by having it to check sub-register indicies. e.g. 
ecx = mov eax
al  = mov ch
The second copy is not a nop because the sub-indices of ecx,ch is not the
same of that of eax/al.

Re-enabled machine-cp.
PR11940

llvm-svn: 151002
 2012-02-20 23:28:17 +00:00
Chad Rosier
b98a4accfa Fix 80-column violation. 
llvm-svn: 150998
 2012-02-20 23:13:17 +00:00
Benjamin Kramer
64719820cf Test case for r150978. 
llvm-svn: 150979
 2012-02-20 19:00:28 +00:00
Benjamin Kramer
0dac66d9a2 InstCombine: Removing the base from the address calculation is only safe when the GEPs are inbounds. 
llvm-svn: 150978
 2012-02-20 18:45:10 +00:00
Eric Christopher
742c530fa0 Make this a bit prettier and more obvious when a derived type isn't 
derived from anything.

llvm-svn: 150975
 2012-02-20 18:04:39 +00:00
Eric Christopher
69a0eb9258 If a derived type is also a composite type, print that information 
too.

llvm-svn: 150974
 2012-02-20 18:04:35 +00:00
Eric Christopher
ed41b1f1ef Add support for runtime languages on our forward declarations. 
llvm-svn: 150973
 2012-02-20 18:04:14 +00:00
Benjamin Kramer
9ade8e4d79 InstCombine: When comparing two GEPs that were derived from the same base pointer but use different types, expand the offset calculation and to the compare on the offset if profitable. 
This came up in SmallVector code.

llvm-svn: 150962
 2012-02-20 15:07:47 +00:00
Benjamin Kramer
3d87f26b44 InstCombine: Make OptimizePointerDifference more aggressive. 
- Ignore pointer casts.
- Also expand GEPs that aren't constantexprs when they have one use or only constant indices.

- We now compile "&foo[i] - &foo[j]" into "i - j".

llvm-svn: 150961
 2012-02-20 14:34:57 +00:00
James Molloy
9963b8be92 Teach the DAGCombiner that certain loadext nodes followed by ANDs can be converted to zeroexts. 
llvm-svn: 150957
 2012-02-20 12:02:38 +00:00
James Molloy
6cbdd131b3 Improve generated code for extending loads and some trunc stores on ARM. 
Teach TargetSelectionDAG about lengthening loads for vector types and set v4i8 as legal. Allow FP_TO_UINT for v4i16 from v4i32.

llvm-svn: 150956
 2012-02-20 09:24:05 +00:00
Evan Cheng
499c67989a Make post-ra tail duplication bundle safe. No test case as recent codegen 
flow changes have already hidden the bug. rdar://10893812

llvm-svn: 150949
 2012-02-20 07:51:58 +00:00
Nick Lewycky
a87b6c7974 Rename class Evaluate to Evaluator and put it in an anonymous namespace. 
llvm-svn: 150947
 2012-02-20 03:25:59 +00:00
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