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Author SHA1 Message Date
Bill Wendling
d8ab8e9707 As a first step, emit both the compact unwind and CIE/FDEs for a function. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@139152 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-09-06 18:37:11 +00:00
Owen Anderson
81856f7313 Try again at r138809 (make DSE more aggressive in removing dead stores at the end of a function), now with less deleting stores before memcpy's. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@139150 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-09-06 18:14:09 +00:00
Jakob Stoklund Olesen
9b0e1e7a5b Atomic pseudos don't use (as in read) CPSR. They clobber it. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@139148 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-09-06 17:40:35 +00:00
Devang Patel
fa515ecbca Now, named mdnode llvm.dbg.cu keeps track of all compile units in a module. Update DebugInfoFinder to collect compile units from llvm.dbg.cu. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@139147 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-09-06 17:40:08 +00:00
Duncan Sands
4a544a79bd Split the init.trampoline intrinsic, which currently combines GCC's 
init.trampoline and adjust.trampoline intrinsics, into two intrinsics
like in GCC.  While having one combined intrinsic is tempting, it is
not natural because typically the trampoline initialization needs to
be done in one function, and the result of adjust trampoline is needed
in a different (nested) function.  To get around this llvm-gcc hacks the
nested function lowering code to insert an additional parent variable
holding the adjust.trampoline result that can be accessed from the child
function.  Dragonegg doesn't have the luxury of tweaking GCC code, so it
stored the result of adjust.trampoline in the memory GCC set aside for
the trampoline itself (this is always available in the child function),
and set up some new memory (using an alloca) to hold the trampoline.
Unfortunately this breaks Go which allocates trampoline memory on the
heap and wants to use it even after the parent has exited (!).  Rather
than doing even more hacks to get Go working, it seemed best to just use
two intrinsics like in GCC.  Patch mostly by Sanjoy Das.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@139140 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-09-06 13:37:06 +00:00
Nick Lewycky
ecd37bcd5c Fix typo in comment again. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@139139 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-09-06 07:02:40 +00:00
Nick Lewycky
9115fba853 Apparently we compile the code, not the comments. Thanks Eli! 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@139138 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-09-06 06:56:00 +00:00
Nick Lewycky
e6180992eb Fix typo in comment. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@139137 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-09-06 06:46:01 +00:00
Nick Lewycky
8cfb2f8bce Nope! I had it right the first time. Revert the operative part of r139135 and 
add more showing of my work.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@139136 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-09-06 06:39:54 +00:00
Nick Lewycky
28682ae00f Fix flipped sign. While there, show my math. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@139135 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-09-06 05:33:18 +00:00
Nick Lewycky
980e9f399d No no no, fix typo properly! 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@139134 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-09-06 05:08:09 +00:00
Nick Lewycky
fa151a79ed The logic inside getMulExpr to simplify {a,+,b}*{c,+,d} was wrong, which was 
visible given a=b=c=d=1, on iteration #1 (the second iteration). Replace it with
correct math. Fixes PR10383!


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@139133 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-09-06 05:05:14 +00:00
Nick Lewycky
b2840fdcd8 Revert r139126 due to selfhost failures reported by buildbots. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@139130 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-09-06 02:43:13 +00:00
Nick Lewycky
77b7352db0 Teach SCEV to report a max backedge count in one interesting case in 
HowFarToZero; the case for a canonical loop.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@139126 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-09-05 23:25:16 +00:00
Nick Lewycky
1fac6b50ea Add a new MC bit for NaCl (Native Client) mode. NaCl requires that certain 
instructions are more aligned than the CPU requires, and adds some additional
directives, to follow in future patches. Patch by David Meyer!


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@139125 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-09-05 21:51:43 +00:00
Nick Lewycky
3bca101329 Update the C++ backend to use the new ArrayRef'ified APIs. Patch by arrowdodger! 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@139124 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-09-05 18:50:59 +00:00
Nick Lewycky
7442a03dcc Fix typo in comment. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@139122 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-09-05 18:35:03 +00:00
Benjamin Kramer
ae707bd559 InstSimplify: Don't try to replace an extractvalue/insertvalue pair with the original value if types don't match. 
Fixes clang selfhost.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@139120 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-09-05 18:16:19 +00:00
Duncan Sands
ad99ef8bf5 Delete trivial landing pads that just continue unwinding the caught 
exception.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@139117 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-09-05 12:57:57 +00:00
Duncan Sands
dabc280672 Add some simple insertvalue simplifications, for the purpose of cleaning 
up do-nothing exception handling code produced by dragonegg.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@139113 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-09-05 06:52:48 +00:00
Benjamin Kramer
26eb870d7e Use canonical forms for the branch probability zero heutistic. 
- Drop support for X >u 0, it's equivalent to X != 0 and should be canonicalized into the latter.
- Add X < 1 -> unlikely, which is what instcombine canonicalizes X <= 0 into.
- Add X > -1 -> likely, which is what instcombine canonicalizes X >= 0 into.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@139110 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-09-04 23:53:04 +00:00
Chandler Carruth
fec0c6fa56 As a (rather delayed) followup to r136738 which stopped building the 
edis shared library in the Makefile build, also stop building it in the
CMake build.

Patch by arrowdodger!

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@139108 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-09-04 23:32:05 +00:00
Chandler Carruth
4c07bfb219 Complete the removal of FindBison from CMake. Noticed this when browsing 
some CMake patch backlog...

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@139107 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-09-04 23:29:12 +00:00
Chandler Carruth
cb8d8fa8c0 Update the CMake documentation to the correct variables. 
Patch by arrowdodger!

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@139106 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-09-04 23:24:13 +00:00
Bill Wendling
a268468d50 Use Duncan's patch to delete the instructions in reverse order (minus the landingpad and terminator). 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@139090 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-09-04 09:43:36 +00:00
Bill Wendling
66d1836380 The insertion point for the loads is right before the llvm.eh.exception 
call. The call may be in the same BB as the landingpad instruction. If that's
the case, then inserting the loads after the landingpad inst, but before the
extractvalues, causes undefined behavior.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@139088 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-09-04 09:02:18 +00:00
Benjamin Kramer
e4553af561 valgrind: Suppress glibc's optiized strcasecmp harder. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@139084 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-09-03 17:59:31 +00:00
Benjamin Kramer
c53479d9c2 Use internal storage for command line option. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@139079 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-09-03 03:45:06 +00:00
Bill Wendling
17fe6c48ff Don't reload the values that are already there. The llvm.eh.resume uses the same 
values that the resume instruction uses.
PR10850


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@139076 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-09-03 01:38:17 +00:00
Andrew Trick
5a76f00108 Exclude more arm jit failures pending PR10783. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@139074 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-09-03 01:08:35 +00:00
Bruno Cardoso Lopes
2c84e96d3e Add AVX versions to match AESENC/AESDEC intrinsics. This hopefully ends 
the cycle of missing AVX counterparts of already present SSE* patterns

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@139073 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-09-03 00:47:08 +00:00
Bruno Cardoso Lopes
9f63615b17 Add AVX version of a SSE4.1 VPBLENDVB pattern 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@139072 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-09-03 00:47:05 +00:00
Bruno Cardoso Lopes
d01ef7d978 Add AVX versions of SSE4.1 EXTRACTPS patterns 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@139071 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-09-03 00:47:03 +00:00
Bruno Cardoso Lopes
2b0e0a42d1 Add AVX versions for SSE4.1 MOVZX* patterns 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@139070 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-09-03 00:47:01 +00:00
Bruno Cardoso Lopes
a67806530c Add one more AVX pattern for MOVZPQILo2PQI 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@139069 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-09-03 00:46:58 +00:00
Bruno Cardoso Lopes
d29dd5ec9f Move PUNPCKLQDQ splat pattern close to the instruction definition and 
duplicate it for AVX mode.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@139068 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-09-03 00:46:56 +00:00
Bruno Cardoso Lopes
914a2a319c Add AVX pattern versions for PSHUFB,PSIGN{B,W,D} 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@139067 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-09-03 00:46:54 +00:00
Bruno Cardoso Lopes
a4ac989a1c Add AVX versions of MOVZDI2PDI patterns. Use SUBREG_TO_REG to indicate 
that the AVX versions (even the 128-bit ones) all clear the upper part
of the destination register.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@139066 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-09-03 00:46:51 +00:00
Bruno Cardoso Lopes
152a287374 Enforce subtarget checks in a few places to be explicit when the 
pattern should be matched

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@139065 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-09-03 00:46:49 +00:00
Bruno Cardoso Lopes
5ab6dcc4bb Tidy up code moving patterns to their appropriate place! 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@139064 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-09-03 00:46:47 +00:00
Bruno Cardoso Lopes
0e59a04849 Add AVX versions of FsMOVAPS and FsMOVAPS. Teach X86InstrInfo how to use 
it!

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@139063 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-09-03 00:46:45 +00:00
Bruno Cardoso Lopes
645b8be38a Teach X86FastISel to use AVX versions of instructions when possible 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@139062 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-09-03 00:46:42 +00:00
Bruno Cardoso Lopes
1aab5515f6 Fix 80-column and style 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@139061 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-09-03 00:46:40 +00:00
Bruno Cardoso Lopes
e4ccf8a86c Tidy up some SSE/AVX convert intrinsics. Also add an AVX version of 
OptForSize pattern

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@139060 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-09-03 00:46:38 +00:00
Owen Anderson
7ab15f6d4b Fix a truly heinous bug in DAGCombine related to AssertZext. 
If we have a chain of zext -> assert_zext -> zext -> use, the first zext would get simplified away because of the later zext, and then the later zext would get simplified away because of the assert.  The solution is to teach SimplifyDemandedBits that assert_zext demands all of the high bits of its input, rather than only those demanded by its users.  No testcase because the only example I have manifests as llvm-gcc miscompiling LLVM, and I haven't found a smaller case that reproduces this problem.
Fixes <rdar://problem/10063365>.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@139059 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-09-03 00:26:49 +00:00
Dan Gohman
b116142d3b Revert r129875, XFAILing this test for arm, since the fix was reverted. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@139058 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-09-03 00:14:24 +00:00
Jakob Stoklund Olesen
5047d76575 Pseudo CMOV instructions don't clobber EFLAGS. 
The explanation about a 0 argument being materialized as xor is no
longer valid.  Rematerialization will check if EFLAGS is live before
clobbering it.

The code produced by X86TargetLowering::EmitLoweredSelect does not
clobber EFLAGS.

This causes one less testb instruction to be generated in the cmov.ll
test case.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@139057 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-09-02 23:52:55 +00:00
Jakob Stoklund Olesen
b8e052e123 Check for EFLAGS live-out before clobbering it. 
It is only allowed to clobber EFLAGS at the end of a block if it isn't
live-in to any successor.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@139056 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-09-02 23:52:52 +00:00
Jakob Stoklund Olesen
4a1b9d82a4 Use existing function. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@139055 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-09-02 23:52:49 +00:00
Jim Grosbach
83452b2064 Thumb2 parsing and encoding for CBZ/CBNZ. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@139054 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-09-02 23:46:10 +00:00