Owen Anderson [Wed, 7 Sep 2011 17:55:19 +0000 (17:55 +0000)]
Port more assembler tests over to disassembler tests, and fix a minor logic error that exposed.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@139240
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James Molloy [Wed, 7 Sep 2011 17:24:38 +0000 (17:24 +0000)]
Refactor instprinter and mcdisassembler to take a SubtargetInfo. Add -mattr= handling to llvm-mc. Reviewed by Owen Anderson.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@139237
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Duncan Sands [Wed, 7 Sep 2011 16:44:14 +0000 (16:44 +0000)]
When inlining exception handling code into another function, ensure that
duplicate tests are eliminated (for example if the two functions both have
a catch clause catching the same type, ensure the redundant one is removed).
Note that it would probably be safe to say that eh.typeid.for is 'const',
but since two calls to it with the same argument can give different results
(but only if the calls are in different functions), it seems more correct to
mark it only 'pure'; this doesn't get in the way of the optimization.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@139236
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Jim Grosbach [Wed, 7 Sep 2011 16:22:42 +0000 (16:22 +0000)]
Thumb2 use 'ldm' as default mnemonic.
Handle explicit 'ia' suffix via a MnemonicAlias (pre-existing).
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@139234
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Rafael Espindola [Wed, 7 Sep 2011 16:10:57 +0000 (16:10 +0000)]
Detect attempt to use segmented stacks on non ELF systems and error
(not assert) early.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@139233
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Jim Grosbach [Wed, 7 Sep 2011 16:06:04 +0000 (16:06 +0000)]
Better diagnostic location information for mnemonic suffices.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@139232
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Duncan Sands [Wed, 7 Sep 2011 10:05:14 +0000 (10:05 +0000)]
Another forgotten trampoline testcase.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@139230
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Duncan Sands [Wed, 7 Sep 2011 09:21:38 +0000 (09:21 +0000)]
Forgot to add this trampoline testcase.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@139229
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Eli Friedman [Wed, 7 Sep 2011 02:23:42 +0000 (02:23 +0000)]
Relax the MemOperands on atomics a bit. Fixes -verify-machineinstrs failures for atomic laod/store on ARM.
(The fix for the related failures on x86 is going to be nastier because we actually need Acquire memoperands attached to the atomic load instrs, etc.)
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@139221
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Joerg Sonnenberger [Wed, 7 Sep 2011 02:12:03 +0000 (02:12 +0000)]
Dependency should be on the output file name, not the dependency file
name.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@139220
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Devang Patel [Wed, 7 Sep 2011 00:07:58 +0000 (00:07 +0000)]
While sinking machine instructions, sink matching DBG_VALUEs also otherwise live debug variable pass will drop DBG_VALUEs on the floor.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@139208
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Bill Wendling [Tue, 6 Sep 2011 23:47:14 +0000 (23:47 +0000)]
Reenable compact unwind by default. However, also emit the old version of unwind
information for older linkers.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@139206
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Owen Anderson [Tue, 6 Sep 2011 23:43:26 +0000 (23:43 +0000)]
memset_pattern16 uses a 16 BYTE pattern, not a 16 BIT pattern. Add comments to that effect.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@139205
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Owen Anderson [Tue, 6 Sep 2011 23:33:25 +0000 (23:33 +0000)]
Teach BasicAA about the aliasing properties of memset_pattern16.
Fixes PR10872 and <rdar://problem/
10065079>.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@139204
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Jim Grosbach [Tue, 6 Sep 2011 23:09:19 +0000 (23:09 +0000)]
ISB is HasDB, not just HasV7.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@139202
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Jim Grosbach [Tue, 6 Sep 2011 22:53:27 +0000 (22:53 +0000)]
Thumb2 parsing and encoding for ISB.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@139200
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Jim Grosbach [Tue, 6 Sep 2011 22:44:50 +0000 (22:44 +0000)]
Thumb2 parsing and encoding for EOR.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@139199
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Jim Grosbach [Tue, 6 Sep 2011 22:19:40 +0000 (22:19 +0000)]
Thumb2 parsing and encoding for DSB.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@139194
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Jim Grosbach [Tue, 6 Sep 2011 22:14:58 +0000 (22:14 +0000)]
Thumb2 parsing and encoding for DMB.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@139193
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Nick Lewycky [Tue, 6 Sep 2011 22:08:18 +0000 (22:08 +0000)]
Disable these tests harder. They're XFAIL'd, but that means they still run, and
these tests all infinitely recurse, bringing my system down into swapping hell.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@139192
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Jim Grosbach [Tue, 6 Sep 2011 22:06:40 +0000 (22:06 +0000)]
Thumb2 parsing and encoding for DBG.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@139191
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Jim Grosbach [Tue, 6 Sep 2011 21:44:58 +0000 (21:44 +0000)]
Thumb2 parsing and encoding for CMN and CMP.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@139188
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Nick Lewycky [Tue, 6 Sep 2011 21:42:18 +0000 (21:42 +0000)]
This transform only handles two-operand AddRec's. Prevent it from trying to
handle anything more complex. Fixes PR10383 again!
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@139186
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Eli Friedman [Tue, 6 Sep 2011 20:53:37 +0000 (20:53 +0000)]
Add mayLoad/mayStore markings to ARM 64-bit atomic pseudo-instructions.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@139179
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Jim Grosbach [Tue, 6 Sep 2011 20:44:17 +0000 (20:44 +0000)]
Thumb2 parsing and encoding for CLZ.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@139177
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Jim Grosbach [Tue, 6 Sep 2011 20:27:04 +0000 (20:27 +0000)]
Thumb2 parsing and encoding for CLREX.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@139172
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Owen Anderson [Tue, 6 Sep 2011 20:26:34 +0000 (20:26 +0000)]
Port more encoding tests over to Thumb2 decoding tests.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@139171
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Andrew Trick [Tue, 6 Sep 2011 20:20:38 +0000 (20:20 +0000)]
Add -verify-indvars for imperfect SCEV trip count verification after indvars.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@139169
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Jim Grosbach [Tue, 6 Sep 2011 20:12:23 +0000 (20:12 +0000)]
Thumb2 parsing and encoding for CDP/CDP2.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@139168
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Rafael Espindola [Tue, 6 Sep 2011 19:29:31 +0000 (19:29 +0000)]
Fix comment. Noticed by Duncan.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@139161
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Duncan Sands [Tue, 6 Sep 2011 19:07:46 +0000 (19:07 +0000)]
Add codegen support for vector select (in the IR this means a select
with a vector condition); such selects become VSELECT codegen nodes.
This patch also removes VSETCC codegen nodes, unifying them with SETCC
nodes (codegen was actually often using SETCC for vector SETCC already).
This ensures that various DAG combiner optimizations kick in for vector
comparisons. Passes dragonegg bootstrap with no testsuite regressions
(nightly testsuite as well as "make check-all"). Patch mostly by
Nadav Rotem.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@139159
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Evan Cheng [Tue, 6 Sep 2011 18:52:20 +0000 (18:52 +0000)]
Fix fall outs from my recent change on how carry bit is modeled during isel.
Now the 'S' instructions, e.g. ADDS, treat S bit as optional operand as well.
Also fix isel hook to correctly set the optional operand.
rdar://
10073745
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@139157
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Devang Patel [Tue, 6 Sep 2011 18:49:53 +0000 (18:49 +0000)]
Use IRBuilder.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@139156
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Jim Grosbach [Tue, 6 Sep 2011 18:46:23 +0000 (18:46 +0000)]
ARM .code directive should always go to the streamer.
Even if there's no mode switch performed, the .code directive should still
be sent to the output streamer. Otherwise, for example, an output asm stream
is not equivalent to the input stream which generated it (a dependency on
the input target triple arm vs. thumb is introduced which was not originally
there).
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@139155
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Rafael Espindola [Tue, 6 Sep 2011 18:43:08 +0000 (18:43 +0000)]
Fix style issues and typos found by Duncan.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@139154
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Bill Wendling [Tue, 6 Sep 2011 18:37:11 +0000 (18:37 +0000)]
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
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Owen Anderson [Tue, 6 Sep 2011 18:14:09 +0000 (18:14 +0000)]
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
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Jakob Stoklund Olesen [Tue, 6 Sep 2011 17:40:35 +0000 (17:40 +0000)]
Atomic pseudos don't use (as in read) CPSR. They clobber it.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@139148
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Devang Patel [Tue, 6 Sep 2011 17:40:08 +0000 (17:40 +0000)]
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
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Duncan Sands [Tue, 6 Sep 2011 13:37:06 +0000 (13:37 +0000)]
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
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Nick Lewycky [Tue, 6 Sep 2011 07:02:40 +0000 (07:02 +0000)]
Fix typo in comment again.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@139139
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Nick Lewycky [Tue, 6 Sep 2011 06:56:00 +0000 (06:56 +0000)]
Apparently we compile the code, not the comments. Thanks Eli!
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@139138
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Nick Lewycky [Tue, 6 Sep 2011 06:46:01 +0000 (06:46 +0000)]
Fix typo in comment.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@139137
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Nick Lewycky [Tue, 6 Sep 2011 06:39:54 +0000 (06:39 +0000)]
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
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Nick Lewycky [Tue, 6 Sep 2011 05:33:18 +0000 (05:33 +0000)]
Fix flipped sign. While there, show my math.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@139135
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Nick Lewycky [Tue, 6 Sep 2011 05:08:09 +0000 (05:08 +0000)]
No no no, fix typo properly!
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@139134
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Nick Lewycky [Tue, 6 Sep 2011 05:05:14 +0000 (05:05 +0000)]
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
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Nick Lewycky [Tue, 6 Sep 2011 02:43:13 +0000 (02:43 +0000)]
Revert r139126 due to selfhost failures reported by buildbots.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@139130
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Nick Lewycky [Mon, 5 Sep 2011 23:25:16 +0000 (23:25 +0000)]
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
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Nick Lewycky [Mon, 5 Sep 2011 21:51:43 +0000 (21:51 +0000)]
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
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Nick Lewycky [Mon, 5 Sep 2011 18:50:59 +0000 (18:50 +0000)]
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
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Nick Lewycky [Mon, 5 Sep 2011 18:35:03 +0000 (18:35 +0000)]
Fix typo in comment.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@139122
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Benjamin Kramer [Mon, 5 Sep 2011 18:16:19 +0000 (18:16 +0000)]
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
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Duncan Sands [Mon, 5 Sep 2011 12:57:57 +0000 (12:57 +0000)]
Delete trivial landing pads that just continue unwinding the caught
exception.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@139117
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Duncan Sands [Mon, 5 Sep 2011 06:52:48 +0000 (06:52 +0000)]
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
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Benjamin Kramer [Sun, 4 Sep 2011 23:53:04 +0000 (23:53 +0000)]
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
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Chandler Carruth [Sun, 4 Sep 2011 23:32:05 +0000 (23:32 +0000)]
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
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Chandler Carruth [Sun, 4 Sep 2011 23:29:12 +0000 (23:29 +0000)]
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
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Chandler Carruth [Sun, 4 Sep 2011 23:24:13 +0000 (23:24 +0000)]
Update the CMake documentation to the correct variables.
Patch by arrowdodger!
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@139106
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Bill Wendling [Sun, 4 Sep 2011 09:43:36 +0000 (09:43 +0000)]
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
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Bill Wendling [Sun, 4 Sep 2011 09:02:18 +0000 (09:02 +0000)]
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
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Benjamin Kramer [Sat, 3 Sep 2011 17:59:31 +0000 (17:59 +0000)]
valgrind: Suppress glibc's optiized strcasecmp harder.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@139084
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Benjamin Kramer [Sat, 3 Sep 2011 03:45:06 +0000 (03:45 +0000)]
Use internal storage for command line option.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@139079
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Bill Wendling [Sat, 3 Sep 2011 01:38:17 +0000 (01:38 +0000)]
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
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Andrew Trick [Sat, 3 Sep 2011 01:08:35 +0000 (01:08 +0000)]
Exclude more arm jit failures pending PR10783.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@139074
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Bruno Cardoso Lopes [Sat, 3 Sep 2011 00:47:08 +0000 (00:47 +0000)]
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
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Bruno Cardoso Lopes [Sat, 3 Sep 2011 00:47:05 +0000 (00:47 +0000)]
Add AVX version of a SSE4.1 VPBLENDVB pattern
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@139072
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Bruno Cardoso Lopes [Sat, 3 Sep 2011 00:47:03 +0000 (00:47 +0000)]
Add AVX versions of SSE4.1 EXTRACTPS patterns
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@139071
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Bruno Cardoso Lopes [Sat, 3 Sep 2011 00:47:01 +0000 (00:47 +0000)]
Add AVX versions for SSE4.1 MOVZX* patterns
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@139070
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Bruno Cardoso Lopes [Sat, 3 Sep 2011 00:46:58 +0000 (00:46 +0000)]
Add one more AVX pattern for MOVZPQILo2PQI
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@139069
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Bruno Cardoso Lopes [Sat, 3 Sep 2011 00:46:56 +0000 (00:46 +0000)]
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
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Bruno Cardoso Lopes [Sat, 3 Sep 2011 00:46:54 +0000 (00:46 +0000)]
Add AVX pattern versions for PSHUFB,PSIGN{B,W,D}
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@139067
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Bruno Cardoso Lopes [Sat, 3 Sep 2011 00:46:51 +0000 (00:46 +0000)]
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
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Bruno Cardoso Lopes [Sat, 3 Sep 2011 00:46:49 +0000 (00:46 +0000)]
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
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Bruno Cardoso Lopes [Sat, 3 Sep 2011 00:46:47 +0000 (00:46 +0000)]
Tidy up code moving patterns to their appropriate place!
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@139064
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Bruno Cardoso Lopes [Sat, 3 Sep 2011 00:46:45 +0000 (00:46 +0000)]
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
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Bruno Cardoso Lopes [Sat, 3 Sep 2011 00:46:42 +0000 (00:46 +0000)]
Teach X86FastISel to use AVX versions of instructions when possible
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@139062
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Bruno Cardoso Lopes [Sat, 3 Sep 2011 00:46:40 +0000 (00:46 +0000)]
Fix 80-column and style
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@139061
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Bruno Cardoso Lopes [Sat, 3 Sep 2011 00:46:38 +0000 (00:46 +0000)]
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
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Owen Anderson [Sat, 3 Sep 2011 00:26:49 +0000 (00:26 +0000)]
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
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Dan Gohman [Sat, 3 Sep 2011 00:14:24 +0000 (00:14 +0000)]
Revert r129875, XFAILing this test for arm, since the fix was reverted.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@139058
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Jakob Stoklund Olesen [Fri, 2 Sep 2011 23:52:55 +0000 (23:52 +0000)]
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
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Jakob Stoklund Olesen [Fri, 2 Sep 2011 23:52:52 +0000 (23:52 +0000)]
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
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Jakob Stoklund Olesen [Fri, 2 Sep 2011 23:52:49 +0000 (23:52 +0000)]
Use existing function.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@139055
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Jim Grosbach [Fri, 2 Sep 2011 23:46:10 +0000 (23:46 +0000)]
Thumb2 parsing and encoding for CBZ/CBNZ.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@139054
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Jim Grosbach [Fri, 2 Sep 2011 23:43:09 +0000 (23:43 +0000)]
Thumb2 parsing and encoding for BXJ.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@139053
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Jim Grosbach [Fri, 2 Sep 2011 23:37:54 +0000 (23:37 +0000)]
Thumb2 parsing and encoding for BIC.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@139052
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Jim Grosbach [Fri, 2 Sep 2011 23:28:46 +0000 (23:28 +0000)]
Thumb2 parsing and encoding for BFI.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@139051
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Jim Grosbach [Fri, 2 Sep 2011 23:25:46 +0000 (23:25 +0000)]
Thumb2 parsing and encoding for BFC.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@139050
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Jim Grosbach [Fri, 2 Sep 2011 23:22:08 +0000 (23:22 +0000)]
Thumb2 parsing and encoding of B instruction.
Tweak handling of IT blocks a bit to enable this. The differentiation between
B and Bcc needs special sauce.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@139049
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Andrew Trick [Fri, 2 Sep 2011 22:59:34 +0000 (22:59 +0000)]
Attempt to silence known valgrind errors.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@139048
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Jakob Stoklund Olesen [Fri, 2 Sep 2011 22:41:25 +0000 (22:41 +0000)]
Remove unused variables.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@139047
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Bill Wendling [Fri, 2 Sep 2011 22:41:11 +0000 (22:41 +0000)]
Try to eliminate the use of the 'unwind' instruction.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@139046
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Eli Friedman [Fri, 2 Sep 2011 22:33:24 +0000 (22:33 +0000)]
Don't fast-isel for atomic load/store; some cases require extra handling missing from fast-isel.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@139044
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Jim Grosbach [Fri, 2 Sep 2011 21:28:54 +0000 (21:28 +0000)]
Thumb2 parsing and encoding for ASR.
For other shift and rotate instructions, too. Tests for those forthcoming
as I work my way through the ISA.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@139040
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Bill Wendling [Fri, 2 Sep 2011 21:27:08 +0000 (21:27 +0000)]
Better fix for this testcase. Update it to the new EH scheme entirely.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@139039
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Bill Wendling [Fri, 2 Sep 2011 21:24:17 +0000 (21:24 +0000)]
Update for new EH stuff. (I'm not sure if this is 100% correct.)
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@139038
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Andrew Trick [Fri, 2 Sep 2011 21:21:03 +0000 (21:21 +0000)]
Test case update for unroll-scev.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@139037
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Andrew Trick [Fri, 2 Sep 2011 21:20:46 +0000 (21:20 +0000)]
Comment and clarifying assert.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@139036
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Bill Wendling [Fri, 2 Sep 2011 21:17:08 +0000 (21:17 +0000)]
No need to get fancy inserting a PHI node when the values are stored in stack
slots. This fixes a bug where the number of nodes coming into the PHI node may
not equal the number of predecessors. E.g., two or more landingpad instructions
may require a PHI before reaching the eh.exception and eh.selector instructions.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@139035
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