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2011-09-06Add mayLoad/mayStore markings to ARM 64-bit atomic pseudo-instructions.Eli Friedman
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@139179 91177308-0d34-0410-b5e6-96231b3b80d8
2011-09-06Thumb2 parsing and encoding for CLREX.Jim Grosbach
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@139172 91177308-0d34-0410-b5e6-96231b3b80d8
2011-09-06Add -verify-indvars for imperfect SCEV trip count verification after indvars.Andrew Trick
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@139169 91177308-0d34-0410-b5e6-96231b3b80d8
2011-09-06Fix comment. Noticed by Duncan.Rafael Espindola
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@139161 91177308-0d34-0410-b5e6-96231b3b80d8
2011-09-06Add codegen support for vector select (in the IR this means a selectDuncan Sands
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 91177308-0d34-0410-b5e6-96231b3b80d8
2011-09-06Fix fall outs from my recent change on how carry bit is modeled during isel.Evan Cheng
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 91177308-0d34-0410-b5e6-96231b3b80d8
2011-09-06Use IRBuilder.Devang Patel
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@139156 91177308-0d34-0410-b5e6-96231b3b80d8
2011-09-06ARM .code directive should always go to the streamer.Jim Grosbach
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 91177308-0d34-0410-b5e6-96231b3b80d8
2011-09-06Fix style issues and typos found by Duncan.Rafael Espindola
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@139154 91177308-0d34-0410-b5e6-96231b3b80d8
2011-09-06As a first step, emit both the compact unwind and CIE/FDEs for a function.Bill Wendling
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@139152 91177308-0d34-0410-b5e6-96231b3b80d8
2011-09-06Try again at r138809 (make DSE more aggressive in removing dead stores at ↵Owen Anderson
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
2011-09-06Atomic pseudos don't use (as in read) CPSR. They clobber it.Jakob Stoklund Olesen
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@139148 91177308-0d34-0410-b5e6-96231b3b80d8
2011-09-06Now, named mdnode llvm.dbg.cu keeps track of all compile units in a module. ↵Devang Patel
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
2011-09-06Split the init.trampoline intrinsic, which currently combines GCC'sDuncan Sands
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
2011-09-06Fix typo in comment again.Nick Lewycky
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@139139 91177308-0d34-0410-b5e6-96231b3b80d8
2011-09-06Apparently we compile the code, not the comments. Thanks Eli!Nick Lewycky
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@139138 91177308-0d34-0410-b5e6-96231b3b80d8
2011-09-06Fix typo in comment.Nick Lewycky
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@139137 91177308-0d34-0410-b5e6-96231b3b80d8
2011-09-06Nope! I had it right the first time. Revert the operative part of r139135 andNick Lewycky
add more showing of my work. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@139136 91177308-0d34-0410-b5e6-96231b3b80d8
2011-09-06Fix flipped sign. While there, show my math.Nick Lewycky
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@139135 91177308-0d34-0410-b5e6-96231b3b80d8
2011-09-06No no no, fix typo properly!Nick Lewycky
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@139134 91177308-0d34-0410-b5e6-96231b3b80d8
2011-09-06The logic inside getMulExpr to simplify {a,+,b}*{c,+,d} was wrong, which wasNick Lewycky
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
2011-09-06Revert r139126 due to selfhost failures reported by buildbots.Nick Lewycky
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@139130 91177308-0d34-0410-b5e6-96231b3b80d8
2011-09-05Teach SCEV to report a max backedge count in one interesting case inNick Lewycky
HowFarToZero; the case for a canonical loop. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@139126 91177308-0d34-0410-b5e6-96231b3b80d8
2011-09-05Add a new MC bit for NaCl (Native Client) mode. NaCl requires that certainNick Lewycky
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
2011-09-05Update the C++ backend to use the new ArrayRef'ified APIs. Patch by arrowdodger!Nick Lewycky
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@139124 91177308-0d34-0410-b5e6-96231b3b80d8
2011-09-05Fix typo in comment.Nick Lewycky
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@139122 91177308-0d34-0410-b5e6-96231b3b80d8
2011-09-05InstSimplify: Don't try to replace an extractvalue/insertvalue pair with the ↵Benjamin Kramer
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
2011-09-05Delete trivial landing pads that just continue unwinding the caughtDuncan Sands
exception. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@139117 91177308-0d34-0410-b5e6-96231b3b80d8
2011-09-05Add some simple insertvalue simplifications, for the purpose of cleaningDuncan Sands
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
2011-09-04Use canonical forms for the branch probability zero heutistic.Benjamin Kramer
- 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
2011-09-04Use Duncan's patch to delete the instructions in reverse order (minus the ↵Bill Wendling
landingpad and terminator). git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@139090 91177308-0d34-0410-b5e6-96231b3b80d8
2011-09-04The insertion point for the loads is right before the llvm.eh.exceptionBill Wendling
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
2011-09-03Use internal storage for command line option.Benjamin Kramer
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@139079 91177308-0d34-0410-b5e6-96231b3b80d8
2011-09-03Don't reload the values that are already there. The llvm.eh.resume uses the sameBill Wendling
values that the resume instruction uses. PR10850 git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@139076 91177308-0d34-0410-b5e6-96231b3b80d8
2011-09-03Add AVX versions to match AESENC/AESDEC intrinsics. This hopefully endsBruno Cardoso Lopes
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
2011-09-03Add AVX version of a SSE4.1 VPBLENDVB patternBruno Cardoso Lopes
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@139072 91177308-0d34-0410-b5e6-96231b3b80d8
2011-09-03Add AVX versions of SSE4.1 EXTRACTPS patternsBruno Cardoso Lopes
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@139071 91177308-0d34-0410-b5e6-96231b3b80d8
2011-09-03Add AVX versions for SSE4.1 MOVZX* patternsBruno Cardoso Lopes
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@139070 91177308-0d34-0410-b5e6-96231b3b80d8
2011-09-03Add one more AVX pattern for MOVZPQILo2PQIBruno Cardoso Lopes
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@139069 91177308-0d34-0410-b5e6-96231b3b80d8
2011-09-03Move PUNPCKLQDQ splat pattern close to the instruction definition andBruno Cardoso Lopes
duplicate it for AVX mode. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@139068 91177308-0d34-0410-b5e6-96231b3b80d8
2011-09-03Add AVX pattern versions for PSHUFB,PSIGN{B,W,D}Bruno Cardoso Lopes
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@139067 91177308-0d34-0410-b5e6-96231b3b80d8
2011-09-03Add AVX versions of MOVZDI2PDI patterns. Use SUBREG_TO_REG to indicateBruno Cardoso Lopes
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
2011-09-03Enforce subtarget checks in a few places to be explicit when theBruno Cardoso Lopes
pattern should be matched git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@139065 91177308-0d34-0410-b5e6-96231b3b80d8
2011-09-03Tidy up code moving patterns to their appropriate place!Bruno Cardoso Lopes
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@139064 91177308-0d34-0410-b5e6-96231b3b80d8
2011-09-03Add AVX versions of FsMOVAPS and FsMOVAPS. Teach X86InstrInfo how to useBruno Cardoso Lopes
it! git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@139063 91177308-0d34-0410-b5e6-96231b3b80d8
2011-09-03Teach X86FastISel to use AVX versions of instructions when possibleBruno Cardoso Lopes
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@139062 91177308-0d34-0410-b5e6-96231b3b80d8
2011-09-03Fix 80-column and styleBruno Cardoso Lopes
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@139061 91177308-0d34-0410-b5e6-96231b3b80d8
2011-09-03Tidy up some SSE/AVX convert intrinsics. Also add an AVX version ofBruno Cardoso Lopes
OptForSize pattern git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@139060 91177308-0d34-0410-b5e6-96231b3b80d8
2011-09-03Fix a truly heinous bug in DAGCombine related to AssertZext.Owen Anderson
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
2011-09-02Pseudo CMOV instructions don't clobber EFLAGS.Jakob Stoklund Olesen
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
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