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2511059a16
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12790 Commits

Author SHA1 Message Date
Owen Anderson
2511059a16 Early CFG simplification can fold conditionals down to selects, which is often a good thing, but it can also 
hide jump threading opportunities by turning control flow into data flow.  Run an early JumpThreading pass
(adds approximately an additional 1% to optimization time on SPEC), allowing it to get a shot at these cases
first.  Fixes <rdar://problem/8447345>.

llvm-svn: 115099
 2010-09-29 22:57:02 +00:00
Evan Cheng
b44d480808 Model Cortex-a9 load to SUB, RSB, ADD, ADC, SBC, RSC, CMN, MVN, or CMP 
pipeline forwarding path.

llvm-svn: 115098
 2010-09-29 22:42:35 +00:00
Devang Patel
f600d9f0ed Add support to let FE encode method access specifier. 
llvm-svn: 115089
 2010-09-29 21:44:16 +00:00
Devang Patel
bbd003ab48 Generalize DISubprogram element to encode various flags instead of just one boolean for isArtificial. 
This is a backword compatible change.

llvm-svn: 115084
 2010-09-29 21:04:46 +00:00
Chris Lattner
b7bfd3de07 remove PointerTracking from mainline, Edwin is going to move it out to ClamAV 
for LLVM 2.9

llvm-svn: 115062
 2010-09-29 18:43:27 +00:00
Chris Lattner
cbecb9a4d3 implement rdar://8456378 and PR7557 - support for the fstsw, 
an instruction that requires a WHOLE NEW wonderful kind of alias.

llvm-svn: 115015
 2010-09-29 01:50:45 +00:00
Chris Lattner
9b9a847b8c change the protocol TargetAsmPArser::MatchInstruction method to take an 
MCStreamer to emit into instead of an MCInst to fill in.  This allows the
matcher extra flexibility and is more convenient.

llvm-svn: 115014
 2010-09-29 01:42:58 +00:00
Evan Cheng
39c462b4f1 Add support to model pipeline bypass / forwarding. 
llvm-svn: 115005
 2010-09-28 23:50:49 +00:00
Owen Anderson
c0e1200323 Part one of switching to using a more sane heuristic for determining if-conversion profitability. 
Rather than having arbitrary cutoffs, actually try to cost model the conversion.

For now, the constants are tuned to more or less match our existing behavior, but these will be
changed to reflect realistic values as this work proceeds.

llvm-svn: 114973
 2010-09-28 18:32:13 +00:00
Devang Patel
e1f502ee26 Provide an interface to let FEs anchor debug info for types. 
llvm-svn: 114969
 2010-09-28 18:08:20 +00:00
Bill Wendling
3e1b942231 Add a new scope type "LTO_SYMBOL_SCOPE_DEFAULT_CAN_BE_HIDDEN" for the 
"linker_private_weak_auto_def" linkage type for LTO.

llvm-svn: 114868
 2010-09-27 20:17:45 +00:00
Daniel Dunbar
7179426193 MC/AsmParser: Handle exponents in floating point literals. 
llvm-svn: 114861
 2010-09-27 20:12:52 +00:00
Rafael Espindola
843df9bbed Remove unused argument. 
llvm-svn: 114852
 2010-09-27 18:13:03 +00:00
Benjamin Kramer
cd6c025b08 Push twines deeper into SourceMgr's error handling methods. 
llvm-svn: 114847
 2010-09-27 17:42:11 +00:00
Dan Gohman
8443b40d5f writeGraph doesn't need its ShortNames argument. 
llvm-svn: 114842
 2010-09-27 16:59:51 +00:00
Dan Gohman
830a560eef Don't construct a redundant GraphWriter object. 
llvm-svn: 114838
 2010-09-27 16:54:13 +00:00
Dan Gohman
96a88043ca Factor out code from the standalone WriteGraph function into a helper 
function on GraphWriter.

llvm-svn: 114837
 2010-09-27 16:44:11 +00:00
Dan Gohman
3c72647fd5 Constify properlyDominates in the same manner as dominates. 
Add constified overloads for findNearestCommonDominator.

llvm-svn: 114834
 2010-09-27 16:33:31 +00:00
Dan Gohman
773c8a1c76 Add support for viewing graphviz graphs with xdot.py. 
llvm-svn: 114832
 2010-09-27 16:28:34 +00:00
Dan Gohman
f9d7d6c9f9 Add an all() method to BitVector, for testing whether all bits are set. 
llvm-svn: 114830
 2010-09-27 15:48:37 +00:00
Dan Gohman
e024d78aab Remove WriteGraph's Name argument, which it didn't use, and 
rename writeHeader's Name argument to Title, to be consistent
with WriteGraph.

llvm-svn: 114829
 2010-09-27 15:34:19 +00:00
Dan Gohman
31cdf8db52 Fix indentation. 
llvm-svn: 114827
 2010-09-27 14:44:14 +00:00
Chris Lattner
0ebcc18dec the latest assembler that runs on powerpc 10.4 machines doesn't 
support aligned comm.  Detect when compiling for 10.4 and don't
emit an alignment for comm.  THis will hopefully fix PR8198.

llvm-svn: 114817
 2010-09-27 06:44:54 +00:00
Oscar Fuentes
2291919711 Avoid warnings about implicit conversions to `bool' in MSVC. This time 
for real.

Patch by Nathan Jeffords!

llvm-svn: 114796
 2010-09-25 20:27:36 +00:00
Jakob Stoklund Olesen
53ffe6c58b Avoid using VNInfo::getCopy as much as possible. I want to get rid of it. 
llvm-svn: 114794
 2010-09-25 18:10:38 +00:00
Lang Hames
fb22f00975 Removed VNInfo::isDefAccurate(). Def "accuracy" can be checked by testing whether LiveIntervals::getInstructionFromIndex(def) returns NULL. 
llvm-svn: 114791
 2010-09-25 12:04:16 +00:00
Che-Liang Chiou
0eaf890a31 Add ret instruction to PTX backend 
llvm-svn: 114788
 2010-09-25 07:46:17 +00:00
Che-Liang Chiou
ab93b6355a Remove trailing spaces of CallingConv.h 
llvm-svn: 114787
 2010-09-25 07:02:30 +00:00
Jakob Stoklund Olesen
af7994784c Remove SlotIndex::PHI_BIT. It is no longer used by anything. 
llvm-svn: 114779
 2010-09-25 00:45:18 +00:00
Jakob Stoklund Olesen
794b5e00d7 Terminator gaps were unused. Might as well delete them. 
llvm-svn: 114776
 2010-09-24 23:58:56 +00:00
Nicolas Geoffray
3a40b52aea Attach a DebugLoc to a GC point in order to get precise information in the JIT of a GC point. 
llvm-svn: 114736
 2010-09-24 17:27:50 +00:00
Daniel Dunbar
eacb42cfee MC/Lexer: Add 'Real' token type for floating point literals. 
llvm-svn: 114718
 2010-09-24 01:59:31 +00:00
Owen Anderson
4fc55c0e02 Revert r114703 and r114702, removing the isConditionalMove flag from instructions. After further 
reflection, this isn't going to achieve the purpose I intended it for.  Back to the drawing board!

llvm-svn: 114710
 2010-09-23 23:45:25 +00:00
Owen Anderson
d1753f939a Add an TargetInstrDesc bit to indicate that a given instruction is a conditional move. 
Not intended functionality change, as nothing uses this yet.

llvm-svn: 114702
 2010-09-23 22:44:10 +00:00
Jim Grosbach
ed295d62f5 trailing whitespace 
llvm-svn: 114680
 2010-09-23 18:07:04 +00:00
Oscar Fuentes
095c140c09 Avoid warnings about conversions to `bool' in MS compilers. 
Patch by Nathan Jeffords!

llvm-svn: 114662
 2010-09-23 16:59:44 +00:00
Lang Hames
f670bff621 Moved the PBQP allocator class out of the header and back in to the cpp file to hide the gory details. 
Allocator instances can now be created by calling createPBQPRegisterAllocator.

Tidied up use of CoalescerPair as per Jakob's suggestions.

Made the new PBQPBuilder based construction process the default. The internal construction process
remains in-place and available via -pbqp-builder=false for now. It will be removed shortly if the new
process doesn't cause any regressions.

llvm-svn: 114626
 2010-09-23 04:28:54 +00:00
Jim Grosbach
d8735f1db1 Add support for ELF PLT references for ARM MC asm printing. Adding a 
new VariantKind to the MCSymbolExpr seems like overkill, but I'm not sure
there's a more straightforward way to get the printing difference captured.
(i.e., x86 uses @PLT, ARM uses (PLT)).

llvm-svn: 114613
 2010-09-22 23:27:36 +00:00
Dan Gohman
d299070514 Make SetVector's remove indicate whether it actually removed something. 
llvm-svn: 114612
 2010-09-22 23:20:04 +00:00
Rafael Espindola
3cfff6e0c5 Avoid some Mach-O specific alignment being done on ELF. 
llvm-svn: 114594
 2010-09-22 22:27:05 +00:00
Chris Lattner
04d9e1641f allow target-specific label suffixes, patch by Yuri Gribov! 
llvm-svn: 114592
 2010-09-22 22:19:53 +00:00
Dan Gohman
3ae6b70330 Fix uninitialized TBAAFlag field values. 
llvm-svn: 114591
 2010-09-22 22:18:07 +00:00
Dan Gohman
d69790d841 Teach memdep about TBAA tags. 
llvm-svn: 114588
 2010-09-22 21:41:02 +00:00
Dan Gohman
879cf5573e Constify. 
llvm-svn: 114574
 2010-09-22 20:11:43 +00:00
Chris Lattner
6543dacfac Rework passing parent pointers into complexpatterns, I forgot 
that complex patterns are matched after the entire pattern has
a structural match, therefore the NodeStack isn't in a useful
state when the actual call to the matcher happens.

llvm-svn: 114489
 2010-09-21 22:00:25 +00:00
Dan Gohman
008676d2ee Add some utility routines. 
llvm-svn: 114483
 2010-09-21 21:20:13 +00:00
Devang Patel
904f538a7a Add insertAfter. This should have accompanied previous check-in. 
llvm-svn: 114481
 2010-09-21 21:10:42 +00:00
Chris Lattner
a911c9ed3a just like they can opt into getting the root of the pattern being 
matched, allow ComplexPatterns to opt into getting the parent node
of the operand being matched.

llvm-svn: 114472
 2010-09-21 20:37:12 +00:00
Chris Lattner
55043ef46a fix a long standing wart: all the ComplexPattern's were being 
passed the root of the match, even though only a few patterns
actually needed this (one in X86, several in ARM [which should
be refactored anyway], and some in CellSPU that I don't feel 
like detangling).   Instead of requiring all ComplexPatterns to
take the dead root, have targets opt into getting the root by
putting SDNPWantRoot on the ComplexPattern.

llvm-svn: 114471
 2010-09-21 20:31:19 +00:00
Chris Lattner
32ec32b690 finish pushing MachinePointerInfo through selectiondags. At this point, 
I think I've audited all uses, so it should be dependable for address spaces,
and the pointer+offset info should also be accurate when there.

llvm-svn: 114464
 2010-09-21 18:58:22 +00:00