Owen Anderson
c1a4bbe1c8
Workaround for an... interesting bug in Darwin's pthread_rwlock_init.
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llvm-svn: 73806
2009-06-20 00:32:27 +00:00
Dan Gohman
074c629d46
Use ScalarEvolution's new GetMinSignBits and GetMinLeadingZeros
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in the loop backedge-taken count computation of the maximum
possible trip count.
llvm-svn: 73805
2009-06-20 00:32:22 +00:00
Owen Anderson
56b666e12a
Forgot this file.
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llvm-svn: 73802
2009-06-20 00:26:26 +00:00
Owen Anderson
733fa621f6
Revert r73790, and replace it with a significantly less ugly solution. Rather than trying to make the global reader-writer lock work,
...
create separate recursive mutexes for each value map. The recursive-ness fixes the double-acquiring issue, which having one per ValueMap
lets us continue to maintain some concurrency.
llvm-svn: 73801
2009-06-20 00:24:58 +00:00
Chris Lattner
2e95d43f24
stub out some hacky code for wiring up the new asmprinter interfaces
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on X86. Not useful yet.
llvm-svn: 73799
2009-06-19 23:59:57 +00:00
Dan Gohman
a81541945b
Fix a typo in a comment that Frits von Bommel noticed.
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llvm-svn: 73796
2009-06-19 23:41:37 +00:00
Dan Gohman
d3c3963eea
Make GetMinTrailingZeros a member function of ScalarEvolution,
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so that it can access the TargetData member (when available) and
use ValueTracking.h information to compute information for
SCEVUnknown Values.
Also add GetMinLeadingZeros and GetMinSignBits functions,
with minimal implementations.
llvm-svn: 73794
2009-06-19 23:29:04 +00:00
Dan Gohman
651faa1905
Re-apply r73718, now that the fix in r73787 is in, and add a
...
hand-crafted testcase which demonstrates the bug that was exposed
in 254.gap.
llvm-svn: 73793
2009-06-19 23:23:27 +00:00
Devang Patel
e8b5c14209
DwarfWriter is used to emit EH info also.
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llvm-svn: 73792
2009-06-19 23:21:20 +00:00
Evan Cheng
f18de63563
Enable arm pre-allocation load / store multiple optimization pass.
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llvm-svn: 73791
2009-06-19 23:17:27 +00:00
Owen Anderson
295610c408
Fix a serious bug that would cause deadlock during abstract type refinement. The constant creation
...
gets involved, and we end up trying to recursively acquire a writer lock. The fix for this is slightly horrible,
and involves passing a boolean "locked" parameter around in Constants.cpp, but it's better than having locked and
unlocked versions of most of the code.
llvm-svn: 73790
2009-06-19 23:16:19 +00:00
Dan Gohman
9bd151655f
Fix LSR's OptimizeSMax to ignore max operators with more than 2 operands,
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which it isn't prepared to handle.
llvm-svn: 73787
2009-06-19 23:03:46 +00:00
Devang Patel
e2b1c9a530
mv CodeGen/DebugLoc.h Support/DebugLoc.h
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llvm-svn: 73786
2009-06-19 22:08:58 +00:00
Devang Patel
35810cd07b
Move up dwarf writer initialization in common AsmPrinter class.
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llvm-svn: 73784
2009-06-19 21:54:26 +00:00
Evan Cheng
b90241ac42
Revert 73718. It's breaking 254.gap.
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llvm-svn: 73783
2009-06-19 21:15:06 +00:00
Anton Korobeynikov
ff313dba2f
Unbreak cyclic deps
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llvm-svn: 73781
2009-06-19 19:36:55 +00:00
Owen Anderson
47968a6dec
Fix bad paste-o in the MSVC atomics.
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Patch by Ðван СоÑокин.
llvm-svn: 73779
2009-06-19 18:37:50 +00:00
Owen Anderson
7f70078b63
Forgot to remove some explicit locking when it became implicit in the ValueMap.
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llvm-svn: 73778
2009-06-19 18:34:09 +00:00
Dan Gohman
c71421c97e
Make ScalarEvolution::print print getSCEVAtScope values for
...
expressions, when interesting.
llvm-svn: 73776
2009-06-19 17:49:54 +00:00
Owen Anderson
12e12ed0d4
Move the memory fences out of the path for single-threaded mode.
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llvm-svn: 73775
2009-06-19 17:45:12 +00:00
Dan Gohman
d920fdb643
Don't (unconditionally) use getSCEVAtScope to simplify the step
...
expression in IVUsers, because in the case of a use of a non-linear
addrec outside of a loop, this causes the addrec to be evaluated as
a linear addrec.
llvm-svn: 73774
2009-06-19 17:33:15 +00:00
Owen Anderson
c17c15cb23
Fix incorrect comment pointed out by Duncan.
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llvm-svn: 73773
2009-06-19 17:20:50 +00:00
Chris Lattner
8f6f044afd
make jump threading handle lexically identical compare instructions
...
as if they were multiple uses of the same instruction. This interacts
well with the existing loadpre that j-t does to open up many new jump
threads earlier.
llvm-svn: 73768
2009-06-19 16:27:56 +00:00
Chris Lattner
91740476a3
fix the sparc codegen to not depend on the sparc asmprinter.
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llvm-svn: 73767
2009-06-19 15:48:10 +00:00
Duncan Sands
30dcb8401d
Add support for AuroraUX. Patch by evocallaghan.
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llvm-svn: 73766
2009-06-19 14:40:01 +00:00
Evan Cheng
706927c96a
Add comments.
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llvm-svn: 73761
2009-06-19 07:06:07 +00:00
Eli Friedman
5cccb60bad
Fix for PR2484: add an SSE1 pattern for a shuffle we normally prefer to
...
handle with an SSE2 instruction.
llvm-svn: 73760
2009-06-19 07:00:55 +00:00
Evan Cheng
8f613095de
Should be using Bcc (average) latency to determine if-conversion threshold, not BL.
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llvm-svn: 73759
2009-06-19 06:56:26 +00:00
Eli Friedman
eb83635a7e
Minor cleanup; fixes review comments for a previous patch. Sorry for
...
taking so long to get to this!
llvm-svn: 73757
2009-06-19 06:01:55 +00:00
Nick Lewycky
a5f89b09c6
Teach jump threading to look at comparisons between phi nodes and non-constants.
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llvm-svn: 73755
2009-06-19 04:56:29 +00:00
Eli Friedman
b2688e9b73
Misc tweaks to Intel asm printing to make it more compatible with MASM.
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Patch by Benedict Gaster.
llvm-svn: 73753
2009-06-19 04:48:38 +00:00
Chris Lattner
8ddc06469c
Improve tail call elim to move loads above readonly calls
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when it allows forming a tail call. Patch by Frits van
Bommel. This implements PR4323.
llvm-svn: 73752
2009-06-19 04:22:16 +00:00
Chris Lattner
3a683c551f
part of PR4405: disable a contentious optimization for
...
strcmp -> memcmp when the lengths of the strings are unknown.
Patch by Nick Lewycky!
llvm-svn: 73751
2009-06-19 04:17:36 +00:00
Lang Hames
1bade5ff09
More VNInfo tweaking, plus a little progress on intra-block splitting.
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llvm-svn: 73750
2009-06-19 02:17:53 +00:00
Evan Cheng
667924dc46
Transfer dead markers when a ldrd is changed into a ldm or a pair of ldr.
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llvm-svn: 73749
2009-06-19 01:59:04 +00:00
Evan Cheng
f671ce4eba
Latency information for ARM v6. It's rough and not yet hooked up. Right now we are only using branch latency to determine if-conversion limits.
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llvm-svn: 73747
2009-06-19 01:51:50 +00:00
Eli Friedman
003abaa60d
Mark a few Thumb instructions commutable; just happened to spot this
...
while experimenting. I'm reasonably sure this is correct, but please
tell me if these instructions have some strange property which makes this
change unsafe.
llvm-svn: 73746
2009-06-19 01:43:08 +00:00
Chris Lattner
f077552a99
add a file I missed, this goes with r73743
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llvm-svn: 73744
2009-06-19 00:47:59 +00:00
Chris Lattner
3624754e23
Add some scaffolding for a new experimental asmprinter
...
implementation. The idea is that we want asmprinting to
work by converting MachineInstrs into a new MCInst class,
then the per-instruction asmprinter works on MCInst. MCInst
and the new asmprinters will not depend on most of the
llvm code generators. This allows building diassemblers
that don't link in the whole llvm code generator. This is
step #1 of many.
llvm-svn: 73743
2009-06-19 00:47:33 +00:00
Chris Lattner
c2b0fd0304
merge the common darwin settings from the X86/PPC/ARM targets
...
into DarwinTargetAsmInfo.cpp. The remaining differences should
be evaluated. It seems strange that x86/arm has .zerofill but ppc
doesn't, etc.
llvm-svn: 73742
2009-06-19 00:08:39 +00:00
Chris Lattner
6cd267dcc5
move mangler quote handling from asm printers to TargetAsmInfo.
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llvm-svn: 73738
2009-06-18 23:41:35 +00:00
Chris Lattner
fea7aa45b7
minor cleanup
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llvm-svn: 73737
2009-06-18 23:33:13 +00:00
Chris Lattner
ea0ea2f4bc
simplify macro debug info directive handling.
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llvm-svn: 73736
2009-06-18 23:31:37 +00:00
Evan Cheng
7426d278ae
Remove UseThumbBacktraces. Just check if subtarget is darwin.
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llvm-svn: 73734
2009-06-18 23:14:30 +00:00
Owen Anderson
99dc404fc5
Add a parent pointer to SCEV, in preparation for getting rid of the global uniquing tables. No functionality change.
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llvm-svn: 73728
2009-06-18 22:25:12 +00:00
Lang Hames
7f288c29af
Improved PHI def marking, replaced some gotos with breaks.
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llvm-svn: 73727
2009-06-18 22:01:47 +00:00
Owen Anderson
939dedb16c
Simplify.
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llvm-svn: 73725
2009-06-18 21:35:56 +00:00
Owen Anderson
06820ef1ca
Simplify.
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llvm-svn: 73723
2009-06-18 20:56:48 +00:00
Owen Anderson
b7742c5035
Add a SmartScopedLock, and use it to simplify code.
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llvm-svn: 73722
2009-06-18 20:51:00 +00:00
Owen Anderson
376f7669a3
Simplify with SmartRWMutex.
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llvm-svn: 73721
2009-06-18 20:44:31 +00:00