Commit Graph

47341 Commits

Author SHA1 Message Date
Eli Friedman
7e2242be71 Fix for PR2484: add an SSE1 pattern for a shuffle we normally prefer to
handle with an SSE2 instruction.



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@73760 91177308-0d34-0410-b5e6-96231b3b80d8
2009-06-19 07:00:55 +00:00
Evan Cheng
7a42b08be8 Should be using Bcc (average) latency to determine if-conversion threshold, not BL.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@73759 91177308-0d34-0410-b5e6-96231b3b80d8
2009-06-19 06:56:26 +00:00
Eli Friedman
2fb070bf5a Minor cleanup; fixes review comments for a previous patch. Sorry for
taking so long to get to this!



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@73757 91177308-0d34-0410-b5e6-96231b3b80d8
2009-06-19 06:01:55 +00:00
Nick Lewycky
9683f18174 Teach jump threading to look at comparisons between phi nodes and non-constants.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@73755 91177308-0d34-0410-b5e6-96231b3b80d8
2009-06-19 04:56:29 +00:00
Eli Friedman
aace4b1a2c Misc tweaks to Intel asm printing to make it more compatible with MASM.
Patch by Benedict Gaster.



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@73753 91177308-0d34-0410-b5e6-96231b3b80d8
2009-06-19 04:48:38 +00:00
Chris Lattner
6a35b40250 Improve tail call elim to move loads above readonly calls
when it allows forming a tail call.  Patch by Frits van
Bommel.  This implements PR4323.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@73752 91177308-0d34-0410-b5e6-96231b3b80d8
2009-06-19 04:22:16 +00:00
Chris Lattner
849832c0fb part of PR4405: disable a contentious optimization for
strcmp -> memcmp when the lengths of the strings are unknown.

Patch by Nick Lewycky!


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@73751 91177308-0d34-0410-b5e6-96231b3b80d8
2009-06-19 04:17:36 +00:00
Lang Hames
10382fb71d More VNInfo tweaking, plus a little progress on intra-block splitting.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@73750 91177308-0d34-0410-b5e6-96231b3b80d8
2009-06-19 02:17:53 +00:00
Evan Cheng
974fe5d691 Transfer dead markers when a ldrd is changed into a ldm or a pair of ldr.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@73749 91177308-0d34-0410-b5e6-96231b3b80d8
2009-06-19 01:59:04 +00:00
Zhongxing Xu
8ebf83b2cc Include DataTypes.h for 'uint64_t'.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@73748 91177308-0d34-0410-b5e6-96231b3b80d8
2009-06-19 01:56:53 +00:00
Evan Cheng
8557c2bcb8 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.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@73747 91177308-0d34-0410-b5e6-96231b3b80d8
2009-06-19 01:51:50 +00:00
Eli Friedman
6b7bb42c36 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.



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@73746 91177308-0d34-0410-b5e6-96231b3b80d8
2009-06-19 01:43:08 +00:00
Owen Anderson
4f10c3b4dc Fix weird class-size-being-different problems. At some level this is being caused by config.h not being
included everywhere.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@73745 91177308-0d34-0410-b5e6-96231b3b80d8
2009-06-19 00:48:22 +00:00
Chris Lattner
fadc83c699 add a file I missed, this goes with r73743
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@73744 91177308-0d34-0410-b5e6-96231b3b80d8
2009-06-19 00:47:59 +00:00
Chris Lattner
475370b036 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.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@73743 91177308-0d34-0410-b5e6-96231b3b80d8
2009-06-19 00:47:33 +00:00
Chris Lattner
4e0f25b603 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.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@73742 91177308-0d34-0410-b5e6-96231b3b80d8
2009-06-19 00:08:39 +00:00
Chris Lattner
f4a481505e fix build problem pointed out by John Thompson!
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@73739 91177308-0d34-0410-b5e6-96231b3b80d8
2009-06-18 23:46:04 +00:00
Chris Lattner
a93ca92379 move mangler quote handling from asm printers to TargetAsmInfo.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@73738 91177308-0d34-0410-b5e6-96231b3b80d8
2009-06-18 23:41:35 +00:00
Chris Lattner
7e816dc175 minor cleanup
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@73737 91177308-0d34-0410-b5e6-96231b3b80d8
2009-06-18 23:33:13 +00:00
Chris Lattner
b839c3f577 simplify macro debug info directive handling.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@73736 91177308-0d34-0410-b5e6-96231b3b80d8
2009-06-18 23:31:37 +00:00
Evan Cheng
cd828618b8 Remove UseThumbBacktraces. Just check if subtarget is darwin.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@73734 91177308-0d34-0410-b5e6-96231b3b80d8
2009-06-18 23:14:30 +00:00
Chris Lattner
bb4688a9cf fix file header
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@73733 91177308-0d34-0410-b5e6-96231b3b80d8
2009-06-18 23:05:21 +00:00
Chris Lattner
f9f065e455 Add a skeleton driver for new machine code level fun. llvm-mc is meant
to be a test driver of other components in the system, which will develop
over time.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@73732 91177308-0d34-0410-b5e6-96231b3b80d8
2009-06-18 23:04:45 +00:00
Chris Lattner
3ea4edce6a new testcase for rdar://6983634
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@73729 91177308-0d34-0410-b5e6-96231b3b80d8
2009-06-18 22:53:26 +00:00
Owen Anderson
4a7893b452 Add a parent pointer to SCEV, in preparation for getting rid of the global uniquing tables. No functionality change.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@73728 91177308-0d34-0410-b5e6-96231b3b80d8
2009-06-18 22:25:12 +00:00
Lang Hames
d21c31610c Improved PHI def marking, replaced some gotos with breaks.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@73727 91177308-0d34-0410-b5e6-96231b3b80d8
2009-06-18 22:01:47 +00:00
Evan Cheng
53df0a2944 Allow user to specify separate SVN url for llvm and the test suite.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@73726 91177308-0d34-0410-b5e6-96231b3b80d8
2009-06-18 21:39:50 +00:00
Owen Anderson
e454067f97 Simplify.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@73725 91177308-0d34-0410-b5e6-96231b3b80d8
2009-06-18 21:35:56 +00:00
Owen Anderson
b2c0fe4d93 Simplify.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@73723 91177308-0d34-0410-b5e6-96231b3b80d8
2009-06-18 20:56:48 +00:00
Owen Anderson
3c8031df6d Add a SmartScopedLock, and use it to simplify code.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@73722 91177308-0d34-0410-b5e6-96231b3b80d8
2009-06-18 20:51:00 +00:00
Owen Anderson
f0f220a07e Simplify with SmartRWMutex.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@73721 91177308-0d34-0410-b5e6-96231b3b80d8
2009-06-18 20:44:31 +00:00
Evan Cheng
b13bafe5c1 On Darwin, ams printer should output a second label before a jump table so the linker knows it's a new atom. But this is only needed if the jump table is put in a separate section from the function body.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@73720 91177308-0d34-0410-b5e6-96231b3b80d8
2009-06-18 20:37:15 +00:00
Owen Anderson
bcf9737f1e Simplify by using no-op-when-not-multithreaded locks.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@73719 91177308-0d34-0410-b5e6-96231b3b80d8
2009-06-18 20:36:21 +00:00
Dan Gohman
4658c9b4ea Generalize LSR's OptimizeSMax to handle unsigned max tests as well
as signed max tests. Along with r73717, this helps CodeGen avoid
emitting code for a maximum operation for this class of loop.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@73718 91177308-0d34-0410-b5e6-96231b3b80d8
2009-06-18 20:23:18 +00:00
Dan Gohman
30fb512e95 Recognize n != 0 ? n : 1 as umax(n, 1). Previously only ULT/UGT/ULE/UGE
comparisons were recognized for umax, but instcombine canonicalizes
unsigned comparisons with zero to this simpler form.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@73717 91177308-0d34-0410-b5e6-96231b3b80d8
2009-06-18 20:21:07 +00:00
Owen Anderson
6cf69cfdee Simplify using mutexes that become no-ops when not in multithreaded mode.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@73716 91177308-0d34-0410-b5e6-96231b3b80d8
2009-06-18 20:15:26 +00:00
Anton Korobeynikov
9547cdfa35 Revert IRBuilder CC propagation. Fix SimplifyLibCalls instead.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@73715 91177308-0d34-0410-b5e6-96231b3b80d8
2009-06-18 20:05:31 +00:00
Owen Anderson
ee6aefcaa3 Simplify a lot of code by using a R/W mutex that becomes a no-op when multithreading is disabled.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@73714 91177308-0d34-0410-b5e6-96231b3b80d8
2009-06-18 19:10:19 +00:00
Owen Anderson
0e4d606684 Use SmartMutex to simplify.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@73712 91177308-0d34-0410-b5e6-96231b3b80d8
2009-06-18 18:36:34 +00:00
Owen Anderson
f0eeb9b7f5 Simplify the SmartMutex implementation a bit.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@73711 91177308-0d34-0410-b5e6-96231b3b80d8
2009-06-18 18:29:03 +00:00
Owen Anderson
b65e9ed106 Give RWMutex the SmartRWMutex treatment too.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@73710 91177308-0d34-0410-b5e6-96231b3b80d8
2009-06-18 18:26:15 +00:00
Owen Anderson
b849a4dd4b Insert a SmartMutex templated class into the class hierarchy, which takes a template parameter specifying whether this mutex
should become a no-op when not running in multithreaded mode.  Make sys::Mutex a typedef of SmartMutex<false>, to preserve source compatibility.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@73709 91177308-0d34-0410-b5e6-96231b3b80d8
2009-06-18 17:53:17 +00:00
Ted Kremenek
e53118ea32 Update CMake files to account for new location of Threading.cpp.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@73708 91177308-0d34-0410-b5e6-96231b3b80d8
2009-06-18 17:47:09 +00:00
Owen Anderson
e3cd5ca7e7 Move Threading.[h|cpp] from Support to System.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@73707 91177308-0d34-0410-b5e6-96231b3b80d8
2009-06-18 16:54:52 +00:00
Dan Gohman
4e8a98519e Remove the code from IVUsers that attempted to handle
casted induction variables in cases where the cast
isn't foldable. It ended up being a pessimization in
many cases. This could be fixed, but it would require
a bunch of complicated code in IVUsers' clients. The
advantages of this approach aren't visible enough to
justify it at this time.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@73706 91177308-0d34-0410-b5e6-96231b3b80d8
2009-06-18 16:54:06 +00:00
Dan Gohman
fd3daa74c2 Generalize the zext(trunc(t) & C) instcombine to work even with
C is not a low-bits mask, and add a similar instcombine for
zext((trunc(t) & C) ^ C).


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@73705 91177308-0d34-0410-b5e6-96231b3b80d8
2009-06-18 16:30:21 +00:00
Dan Gohman
6864db6fac Update a comment to reflect the code.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@73704 91177308-0d34-0410-b5e6-96231b3b80d8
2009-06-18 16:24:47 +00:00
Owen Anderson
1d36e4fa7c Fix the double checked locking in this file too.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@73703 91177308-0d34-0410-b5e6-96231b3b80d8
2009-06-18 16:17:42 +00:00
Owen Anderson
3cfc62aa08 As pointed out by Duncan, I accidentally dropped the first MemoryFence of the
double-checked locking pattern here.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@73701 91177308-0d34-0410-b5e6-96231b3b80d8
2009-06-18 16:08:27 +00:00
Anton Korobeynikov
fd0cfe4bb4 Forgot to commit this hunk
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@73693 91177308-0d34-0410-b5e6-96231b3b80d8
2009-06-18 08:30:57 +00:00