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8557c2bcb8
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28957 Commits

Author SHA1 Message Date
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
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
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
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
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
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
Owen Anderson
6904858ab3 Fix build when disable thread support. 
Patch by Howard Su.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@73680 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-06-18 04:44:46 +00:00
Nick Lewycky
b4b0fc28bc Add braces to clarify if/else structure and remove warning. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@73673 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-06-18 03:01:42 +00:00
Evan Cheng
f9f1da17f8 - Update register allocation hint after coalescing. This is done by the target since the hint is target dependent. This is important for ARM register pair hints. 
- Register allocator should resolve the second part of the hint (register number) before passing it to the target since it knows virtual register to physical register mapping.
- More fixes to get ARM load / store double word working.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@73671 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-06-18 02:04:01 +00:00
Dale Johannesen
063989455d It looks like nobody is working on PR 4158, so I'm 
adding a check to catch this case at compile time
instead of quietly generating incorrect code.
That will at least let us identify CBE failures
that are not due to this problem.



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@73668 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-06-18 01:07:23 +00:00
Dan Gohman
9e7d9883b0 Fix trailing whitespace from ScalarEvolution::print. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@73666 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-06-18 00:37:45 +00:00
Bob Wilson
ff6de36558 ARM unified syntax is not specific to ELF; use it for Darwin, too. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@73665 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-06-18 00:36:17 +00:00
Dan Gohman
820528331f Teach ScalarEvolution how to recognize another xor(and(x, C), C) case. 
If C is a single bit and the and gets analyzed as a truncate and
zero-extend, the xor can be represnted as an add.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@73664 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-06-18 00:00:20 +00:00
Dan Gohman
fc3641b07a Delete unnecessary braces. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@73663 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-06-17 23:54:37 +00:00
Owen Anderson
bf5ec1b9db Reapply r73647 in a non-broken form. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@73662 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-06-17 23:49:06 +00:00
Anton Korobeynikov
7c4f7dd43a Fix asm string from MOVi16 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@73661 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-06-17 23:43:36 +00:00
Anton Korobeynikov
d61eca5330 Thumb2 instructions are enabled only in unified assembler mode. 
Emit switch directive for it. I have no idea whether this is
requirement for Darwin or not.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@73660 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-06-17 23:43:18 +00:00
Dan Gohman
a392c788be Instcombine zext(trunc(x) & mask) to x&mask, even if the trunc has 
multiple users.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@73656 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-06-17 23:17:05 +00:00
Owen Anderson
a23d2c1262 Use double-checked locking for this lazy initialization. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@73653 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-06-17 22:53:57 +00:00
Owen Anderson
b983d67465 Protect the GC table in Function.cpp 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@73647 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-06-17 22:23:31 +00:00
Owen Anderson
de17e9940e Use atomic increment here. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@73643 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-06-17 22:01:09 +00:00
Owen Anderson
92f2c87110 Thread-safe (and ManagedStatic-ized) LeakDetector! 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@73642 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-06-17 21:56:05 +00:00
Owen Anderson
f005a6466a Guard mutation of the timing info global. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@73639 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-06-17 21:28:54 +00:00
Owen Anderson
f2986e6ca9 We need to use double-checked locking for lazy initialization in this case when running multithreaded. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@73636 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-06-17 21:16:20 +00:00