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2011-08-03Fix logical error when detecting lifetime intrinsics.Nick Lewycky
Don't replace a gep/bitcast with 'undef' because that will form a "free(undef)" which in turn means "unreachable". What we wanted was a no-op. Instead, analyze the whole tree and look for all the instructions we need to delete first, then delete them second, not relying on the use_list to stay consistent. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@136752 91177308-0d34-0410-b5e6-96231b3b80d8
2011-08-03Replace the 'UnwindInst' check with a check for 'ResumeInst', which also exitsBill Wendling
the function, because the UnwindInst is going away. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@136751 91177308-0d34-0410-b5e6-96231b3b80d8
2011-08-02Use the precomputed def presence in RAGreedy::calcSpillCost.Jakob Stoklund Olesen
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@136742 91177308-0d34-0410-b5e6-96231b3b80d8
2011-08-02Inform SpillPlacement about blocks with defs.Jakob Stoklund Olesen
This information is not used for anything yet. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@136741 91177308-0d34-0410-b5e6-96231b3b80d8
2011-08-02Rename {First,Last}Use to {First,Last}Instr.Jakob Stoklund Olesen
With a 'FirstDef' field right there, it is very confusing that FirstUse refers to an instruction that may be a def. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@136739 91177308-0d34-0410-b5e6-96231b3b80d8
2011-08-02lldb doesn't need the edis dylib any more.Evan Cheng
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@136738 91177308-0d34-0410-b5e6-96231b3b80d8
2011-08-02ARM backend support for atomicrmw and cmpxchg with non-monotonic ordering. ↵Eli Friedman
Not especially pretty, but seems to work well enough. If this looks okay, I'll put together similar patches for Mips, PPC, and Alpha. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@136737 91177308-0d34-0410-b5e6-96231b3b80d8
2011-08-02Add a BlockInfo::FirstDef field.Jakob Stoklund Olesen
This is either an invalid SlotIndex, or valno->def for the first value defined inside the block. PHI values are not counted as defined inside the block. The FirstDef field will be used when estimating the cost of spilling around a block. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@136736 91177308-0d34-0410-b5e6-96231b3b80d8
2011-08-02Delete BlockInfo::LiveThrough. It wasn't used any more.Jakob Stoklund Olesen
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@136735 91177308-0d34-0410-b5e6-96231b3b80d8
2011-08-02Teach InstCombine that lifetime intrincs aren't a real user on the result of aNick Lewycky
malloc call. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@136732 91177308-0d34-0410-b5e6-96231b3b80d8
2011-08-02Extend the SpillPlacement interface with two new features.Jakob Stoklund Olesen
The PrefBoth constraint is used for blocks that ideally want a live-in value both on the stack and in a register. This would be used by a block that has a use before interference forces a spill. Secondly, add the ChangesValue flag to BlockConstraint. This tells SpillPlacement if a live-in value on the stack can be reused as a live-out stack value for free. If the block redefines the virtual register, a spill would be required for that. This extra information will be used by SpillPlacement to more accurately calculate spill costs when a value can exist both on the stack and in a register. The simplest example is a basic block that reads the virtual register, but doesn't change its value. Spilling around such a block requires a reload, but no spill in the block. The spiller already knows this, but the spill placer doesn't. That can sometimes lead to suboptimal regions. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@136731 91177308-0d34-0410-b5e6-96231b3b80d8
2011-08-02Add the documentation for the 'landingpad' instruction. Improve the 'invoke'Bill Wendling
instruction's documentation to reference the landingpad and resume instructions. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@136729 91177308-0d34-0410-b5e6-96231b3b80d8
2011-08-02Move methods in PassManagerBuilder offline.Rafael Espindola
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@136727 91177308-0d34-0410-b5e6-96231b3b80d8
2011-08-02move PassManagerBuilder.h to IPO. This is a non intuitive place to put it,Rafael Espindola
but it solves a layering violation since things in Support are not supposed to use things in Transforms. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@136726 91177308-0d34-0410-b5e6-96231b3b80d8
2011-08-02Add new atomic instructions to SCCP. No functional change, but stops debug ↵Eli Friedman
spam. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@136723 91177308-0d34-0410-b5e6-96231b3b80d8
2011-08-02Lifetime intrinsics on undef are dead.Nick Lewycky
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@136722 91177308-0d34-0410-b5e6-96231b3b80d8
2011-08-02Update the default bug report url in autoconf.Chad Rosier
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@136721 91177308-0d34-0410-b5e6-96231b3b80d8
2011-08-02no need to count the terminators.Chris Lattner
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@136718 91177308-0d34-0410-b5e6-96231b3b80d8
2011-08-02Assume .cfi_startproc is the first thing in a function. If the function isRafael Espindola
externally visable, create a local symbol to use in the CFE. If not, use the function label itself. Fixes PR10420. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@136716 91177308-0d34-0410-b5e6-96231b3b80d8
2011-08-02Don't create a ridiculous EXTRACT_ELEMENT. PR10563.Eli Friedman
The testcase looks extremely fragile, so I'm adding an assertion which should catch any cases like this. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@136711 91177308-0d34-0410-b5e6-96231b3b80d8
2011-08-02Fix the broken encodings for the VFP vmov.f32 and vmov.f64 instructions, as ↵Owen Anderson
well as the comments that explain them incorrectly. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@136707 91177308-0d34-0410-b5e6-96231b3b80d8
2011-08-02Tidy up. 80 columns.Jim Grosbach
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@136705 91177308-0d34-0410-b5e6-96231b3b80d8
2011-08-02ARM: rename addrmode7 to addr_offset_none.Jim Grosbach
Use a more descriptive name so the code is more self-documenting. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@136704 91177308-0d34-0410-b5e6-96231b3b80d8
2011-08-02Comment out the PPC relocation offset adjustment. It must be done differently.Roman Divacky
This unbreaks some tests. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@136692 91177308-0d34-0410-b5e6-96231b3b80d8
2011-08-02Make this kind of lowering to be supported by 256-bit instructions:Bruno Cardoso Lopes
shuffle (scalar_to_vector (load (ptr + 4))), undef, <0, 0, 0, 0> To: shuffle (vload ptr)), undef, <1, 1, 1, 1> Fix PR10494 git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@136691 91177308-0d34-0410-b5e6-96231b3b80d8
2011-08-02Remove trailing semicolon.Roman Divacky
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@136690 91177308-0d34-0410-b5e6-96231b3b80d8
2011-08-02Sketch out PowerPC ELF writer. This is enough to get clang -integrated-asRoman Divacky
to compile a working hello world on FreeBSD/PPC32. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@136689 91177308-0d34-0410-b5e6-96231b3b80d8
2011-08-02Duncan's english is better than mine. :-)Bill Wendling
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@136684 91177308-0d34-0410-b5e6-96231b3b80d8
2011-08-02Remove the LLVMBuildUnwind C API function.Bill Wendling
The 'unwind' function is going away with the new EH rewrite. This is step 0 in keeping front-ends from using it. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@136683 91177308-0d34-0410-b5e6-96231b3b80d8
2011-08-02Use consistent terminology for loop exit/exiting blocks. Name change only.Andrew Trick
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@136677 91177308-0d34-0410-b5e6-96231b3b80d8
2011-08-02Remove empty test.Benjamin Kramer
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@136675 91177308-0d34-0410-b5e6-96231b3b80d8
2011-08-02Revert r136503 and r136480 in an effort to fix non-determinism in the ↵Owen Anderson
llvm-gcc buildbots on i386. Devang is looking into the root cause. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@136674 91177308-0d34-0410-b5e6-96231b3b80d8
2011-08-02I am the code owner for Clang's IR generation; this has been trueJohn McCall
for awhile, but it's good to make this official. Just to be clear, Doug and Ted "elected" me to this position. Might as well add myself to the credits list while I'm at it. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@136673 91177308-0d34-0410-b5e6-96231b3b80d8
2011-08-02Minor wording tweak for memory model.Eli Friedman
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@136668 91177308-0d34-0410-b5e6-96231b3b80d8
2011-08-02Fix a couple silly typos in IRBuilder in the new atomic instructions.Eli Friedman
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@136665 91177308-0d34-0410-b5e6-96231b3b80d8
2011-08-02Bail from FastISel when we encounter a volatile memset intrinsic. Patch by IvanNick Lewycky
Krasin! git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@136663 91177308-0d34-0410-b5e6-96231b3b80d8
2011-08-01Make the FixedLengthDecoderEmitter smart enough to autogenerate decoders for ↵Owen Anderson
encodings like "let Inst{11-7} = foo;", where the RHS has no bitwidth specifiers. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@136660 91177308-0d34-0410-b5e6-96231b3b80d8
2011-08-01Move imm0_255 to ARMInstrInfo.td with the other immediate predicates.Jim Grosbach
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@136656 91177308-0d34-0410-b5e6-96231b3b80d8
2011-08-01Fix comments.Jim Grosbach
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@136655 91177308-0d34-0410-b5e6-96231b3b80d8
2011-08-01Add v4f64 -> v2f32 fp_round support. Also add a testcase to exerciseBruno Cardoso Lopes
the legalizer. This commit together with the two previous ones fixes PR10495. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@136654 91177308-0d34-0410-b5e6-96231b3b80d8
2011-08-01Teach PreprocessISelDAG to be aware of vector types and to not process them.Bruno Cardoso Lopes
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@136653 91177308-0d34-0410-b5e6-96231b3b80d8
2011-08-01Lower CONCAT_VECTORS to use two VINSERTF128 instructions instead ofBruno Cardoso Lopes
using a stack store. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@136652 91177308-0d34-0410-b5e6-96231b3b80d8
2011-08-01Fix a typo.Roman Divacky
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@136646 91177308-0d34-0410-b5e6-96231b3b80d8
2011-08-01The FixedLenDecoder needs to gracefully handle failing per-instruction ↵Owen Anderson
decoder hooks in addition to per-operand decoder hooks. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@136645 91177308-0d34-0410-b5e6-96231b3b80d8
2011-08-01Actually finish switching to the new system for Target sublibraryChandler Carruth
TableGen deps introduced in r136023. This completes the fixing that dgregor started in r136621. Sorry for missing these the first time around. This should fix some of the random race-condition failures people are still seeing with CMake. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@136643 91177308-0d34-0410-b5e6-96231b3b80d8
2011-08-01Since vectors with all ones can't be created with a 256-bit instruction,Bruno Cardoso Lopes
avoid returning early for v8i32 types, which would only be valid for vector with all zeros. Also split the handling of zeros and ones into separate checking logic since they are handled differently. This fixes PR10547 git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@136642 91177308-0d34-0410-b5e6-96231b3b80d8
2011-08-01Set endianess and pointer size for PPC Linux. Bug noticed by Roman Divacky.Evan Cheng
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@136639 91177308-0d34-0410-b5e6-96231b3b80d8
2011-08-01Change SmallVector to SmallPtrSet in BranchProbabilityInfo. Handle cases whereJakub Staszak
one than one successor goes to the same block. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@136638 91177308-0d34-0410-b5e6-96231b3b80d8
2011-08-01Enhance the fixed length disassembler to better handle operand decoding ↵Owen Anderson
failures. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@136635 91177308-0d34-0410-b5e6-96231b3b80d8
2011-08-01Add a clear() operation to MCInst, to drop all of its operands. Useful for ↵Owen Anderson
the disassembler, where we may realize fairly late into decoding that something is wrong and need to reset. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@136634 91177308-0d34-0410-b5e6-96231b3b80d8