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2009-02-26ADDS{D|S}rr_Int and MULS{D|S}rr_Int are not commutable. The users of these ↵Evan Cheng
intrinsics expect the high bits will not be modified. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@65499 91177308-0d34-0410-b5e6-96231b3b80d8
2009-02-26The last commit was overly conservative. It's ok to reuse value that's ↵Evan Cheng
already marked livein. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@65498 91177308-0d34-0410-b5e6-96231b3b80d8
2009-02-26If an available register falls through to a succ block, unset the last kill. ↵Evan Cheng
Sorry, it's impossible to reduce a sensible test case. It basically requires the moon and stars to align in order to cause a failure. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@65497 91177308-0d34-0410-b5e6-96231b3b80d8
2009-02-25Revert BuildVectorSDNode related patches: 65426, 65427, and 65296.Evan Cheng
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@65482 91177308-0d34-0410-b5e6-96231b3b80d8
2009-02-25Fix big-endian codegen bug. We're splitting upDale Johannesen
overly long ints, e.g. i96, into pieces at PHIs and the nodes that feed into them; however big-endian reverses the order of the pieces (for some reason), and wasn't doing it the same way on both sides, so the pieces didn't match and runtime failures ensued. Fixes 188.ammp and sqlite3 on ppc32. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@65481 91177308-0d34-0410-b5e6-96231b3b80d8
2009-02-25Print variable's display name in dwarf DIE.Devang Patel
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@65468 91177308-0d34-0410-b5e6-96231b3b80d8
2009-02-25Fix PR3667Chris Lattner
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@65464 91177308-0d34-0410-b5e6-96231b3b80d8
2009-02-25Don't block basic block with only SwitchInst to fold into predecessors.Zhou Sheng
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@65456 91177308-0d34-0410-b5e6-96231b3b80d8
2009-02-25Clean up dwarf writer, part 1. This eliminated the horrible recursive ↵Evan Cheng
getGlobalVariablesUsing and replaced it something readable. It eliminated use of slow UniqueVector and replaced it with StringMap, SmallVector, and DenseMap, etc. It also fixed some non-deterministic behavior. This is a very minor compile time win. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@65438 91177308-0d34-0410-b5e6-96231b3b80d8
2009-02-25Add a totally synthetic situation I came up with while looking at a bug inNick Lewycky
related code. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@65437 91177308-0d34-0410-b5e6-96231b3b80d8
2009-02-25Expand tabs to spaces (overlooked in previous commit)Scott Michel
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@65427 91177308-0d34-0410-b5e6-96231b3b80d8
2009-02-25Remove all "cached" data from BuildVectorSDNode, preferring to retrieveScott Michel
results via reference parameters. This patch also appears to fix Evan's reported problem supplied as a reduced bugpoint test case. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@65426 91177308-0d34-0410-b5e6-96231b3b80d8
2009-02-24Added support to have TableGen provide information if an intrinsic (coreMon P Wang
or target) can be overloaded or not. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@65404 91177308-0d34-0410-b5e6-96231b3b80d8
2009-02-24If compile unit's language is not set then don't crash while dump'ing ↵Devang Patel
compile unit. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@65402 91177308-0d34-0410-b5e6-96231b3b80d8
2009-02-24Extension of GEP in constant folder was broken (apparently this codeDaniel Dunbar
has never been run!). - Sorry, don't know how to make an LLVM test case for this. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@65383 91177308-0d34-0410-b5e6-96231b3b80d8
2009-02-24Rename ScalarEvolution's getIterationCount to getBackedgeTakenCount,Dan Gohman
to more accurately describe what it does. Expand its doxygen comment to describe what the backedge-taken count is and how it differs from the actual iteration count of the loop. Adjust names and comments in associated code accordingly. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@65382 91177308-0d34-0410-b5e6-96231b3b80d8
2009-02-24Overhaul my earlier submission due to feedback. It's a large patch, but most ofBill Wendling
them are generic changes. - Use the "fast" flag that's already being passed into the asm printers instead of shoving it into the DwarfWriter. - Instead of calling "MI->getParent()->getParent()" for every MI, set the machine function when calling "runOnMachineFunction" in the asm printers. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@65379 91177308-0d34-0410-b5e6-96231b3b80d8
2009-02-24Add a debugging option for SSC DCE.Owen Anderson
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@65375 91177308-0d34-0410-b5e6-96231b3b80d8
2009-02-24- Use the "Fast" flag instead of "OptimizeForSize" to determine whether to emitBill Wendling
a DBG_LABEL or not. We want to fall back to the original way of emitting debug info when we're in -O0/-fast mode. - Add plumbing in to pass the "Fast" flag to places that need it. - XFAIL DebugInfo/deaddebuglabel.ll. This is finding 11 labels instead of 8. I need to investigate still. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@65367 91177308-0d34-0410-b5e6-96231b3b80d8
2009-02-24Fix a ValueTracking rule: RHS means operand 1, not 0. Add a simpleDan Gohman
ashr instcombine to help expose this code. And apply the fix to SelectionDAG's copy of this code too. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@65364 91177308-0d34-0410-b5e6-96231b3b80d8
2009-02-24Generalize the ChangeCompareStride code, in preparation forDan Gohman
handling non-constant strides. No functionality change. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@65363 91177308-0d34-0410-b5e6-96231b3b80d8
2009-02-24Preserve the DominanceFrontier analysis in the LoopDeletion pass.Dan Gohman
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@65359 91177308-0d34-0410-b5e6-96231b3b80d8
2009-02-24gdb uses DW_AT_prototyped to identify K&R style in C based languages.Devang Patel
This fixes objc.dg/dwarf-prototypes.m scan-assembler DW_AT_prototyped from llvmgcc42 test suite. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@65357 91177308-0d34-0410-b5e6-96231b3b80d8
2009-02-24While folding unconditional return move DbgRegionEndInst into the ↵Devang Patel
predecessor, instead of removing it. This fixes following tests from llvmgcc42 testsuite. gcc.c-torture/execute/20000605-3.c gcc.c-torture/execute/20020619-1.c gcc.c-torture/execute/20030920-1.c gcc.c-torture/execute/loop-ivopts-1.c git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@65353 91177308-0d34-0410-b5e6-96231b3b80d8
2009-02-24If there is not any debug info available for any global variables and any ↵Devang Patel
subprograms then there is not any debug info to emit. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@65352 91177308-0d34-0410-b5e6-96231b3b80d8
2009-02-23Back out the change in 64918 that used sign-extensions when promotingDan Gohman
trip counts that use signed comparisons. It's not obviously the best approach for preserving trip count information, and at any rate there isn't anything in the tree right now that makes use of that, so for now always using zero-extensions is preferable. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@65347 91177308-0d34-0410-b5e6-96231b3b80d8
2009-02-23Fast-isel can't do TLS yet, so it should fall back to SDISelDan Gohman
if it sees TLS addresses. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@65341 91177308-0d34-0410-b5e6-96231b3b80d8
2009-02-23LoopDeletion needs to inform ScalarEvolution when a loop is deleted,Dan Gohman
so that ScalarEvolution doesn't hang onto a dangling Loop*, which could be a problem if another Loop happens to get allocated at the same address. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@65323 91177308-0d34-0410-b5e6-96231b3b80d8
2009-02-23IndVarSimplify preserves ScalarEvolution. In theDan Gohman
-std-compile-opts sequence, this avoids the need for ScalarEvolution to be rerun before LoopDeletion. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@65318 91177308-0d34-0410-b5e6-96231b3b80d8
2009-02-23Should reset DBI_Prev if DBI_Next == 0.Zhou Sheng
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@65314 91177308-0d34-0410-b5e6-96231b3b80d8
2009-02-23Only v1i16 (i.e. _m64) is returned via RAX / RDX.Evan Cheng
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@65313 91177308-0d34-0410-b5e6-96231b3b80d8
2009-02-23Generate better code for v8i16 shuffles on SSE2Nate Begeman
Generate better code for v16i8 shuffles on SSE2 (avoids stack) Generate pshufb for v8i16 and v16i8 shuffles on SSSE3 where it is fewer uops. Document the shuffle matching logic and add some FIXMEs for later further cleanups. New tests that test the above. Examples: New: _shuf2: pextrw $7, %xmm0, %eax punpcklqdq %xmm1, %xmm0 pshuflw $128, %xmm0, %xmm0 pinsrw $2, %eax, %xmm0 Old: _shuf2: pextrw $2, %xmm0, %eax pextrw $7, %xmm0, %ecx pinsrw $2, %ecx, %xmm0 pinsrw $3, %eax, %xmm0 movd %xmm1, %eax pinsrw $4, %eax, %xmm0 ret ========= New: _shuf4: punpcklqdq %xmm1, %xmm0 pshufb LCPI1_0, %xmm0 Old: _shuf4: pextrw $3, %xmm0, %eax movsd %xmm1, %xmm0 pextrw $3, %xmm1, %ecx pinsrw $4, %ecx, %xmm0 pinsrw $5, %eax, %xmm0 ======== New: _shuf1: pushl %ebx pushl %edi pushl %esi pextrw $1, %xmm0, %eax rolw $8, %ax movd %xmm0, %ecx rolw $8, %cx pextrw $5, %xmm0, %edx pextrw $4, %xmm0, %esi pextrw $3, %xmm0, %edi pextrw $2, %xmm0, %ebx movaps %xmm0, %xmm1 pinsrw $0, %ecx, %xmm1 pinsrw $1, %eax, %xmm1 rolw $8, %bx pinsrw $2, %ebx, %xmm1 rolw $8, %di pinsrw $3, %edi, %xmm1 rolw $8, %si pinsrw $4, %esi, %xmm1 rolw $8, %dx pinsrw $5, %edx, %xmm1 pextrw $7, %xmm0, %eax rolw $8, %ax movaps %xmm1, %xmm0 pinsrw $7, %eax, %xmm0 popl %esi popl %edi popl %ebx ret Old: _shuf1: subl $252, %esp movaps %xmm0, (%esp) movaps %xmm0, 16(%esp) movaps %xmm0, 32(%esp) movaps %xmm0, 48(%esp) movaps %xmm0, 64(%esp) movaps %xmm0, 80(%esp) movaps %xmm0, 96(%esp) movaps %xmm0, 224(%esp) movaps %xmm0, 208(%esp) movaps %xmm0, 192(%esp) movaps %xmm0, 176(%esp) movaps %xmm0, 160(%esp) movaps %xmm0, 144(%esp) movaps %xmm0, 128(%esp) movaps %xmm0, 112(%esp) movzbl 14(%esp), %eax movd %eax, %xmm1 movzbl 22(%esp), %eax movd %eax, %xmm2 punpcklbw %xmm1, %xmm2 movzbl 42(%esp), %eax movd %eax, %xmm1 movzbl 50(%esp), %eax movd %eax, %xmm3 punpcklbw %xmm1, %xmm3 punpcklbw %xmm2, %xmm3 movzbl 77(%esp), %eax movd %eax, %xmm1 movzbl 84(%esp), %eax movd %eax, %xmm2 punpcklbw %xmm1, %xmm2 movzbl 104(%esp), %eax movd %eax, %xmm1 punpcklbw %xmm1, %xmm0 punpcklbw %xmm2, %xmm0 movaps %xmm0, %xmm1 punpcklbw %xmm3, %xmm1 movzbl 127(%esp), %eax movd %eax, %xmm0 movzbl 135(%esp), %eax movd %eax, %xmm2 punpcklbw %xmm0, %xmm2 movzbl 155(%esp), %eax movd %eax, %xmm0 movzbl 163(%esp), %eax movd %eax, %xmm3 punpcklbw %xmm0, %xmm3 punpcklbw %xmm2, %xmm3 movzbl 188(%esp), %eax movd %eax, %xmm0 movzbl 197(%esp), %eax movd %eax, %xmm2 punpcklbw %xmm0, %xmm2 movzbl 217(%esp), %eax movd %eax, %xmm4 movzbl 225(%esp), %eax movd %eax, %xmm0 punpcklbw %xmm4, %xmm0 punpcklbw %xmm2, %xmm0 punpcklbw %xmm3, %xmm0 punpcklbw %xmm1, %xmm0 addl $252, %esp ret git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@65311 91177308-0d34-0410-b5e6-96231b3b80d8
2009-02-23Changed option name from inline-threshold to basic-inline-threshold becauseMon P Wang
inline-threshold option is used by the inliner. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@65309 91177308-0d34-0410-b5e6-96231b3b80d8
2009-02-23fix some typos that Duncan noticedChris Lattner
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@65306 91177308-0d34-0410-b5e6-96231b3b80d8
2009-02-23Propagate debug loc info through prologue/epilogue.Bill Wendling
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@65298 91177308-0d34-0410-b5e6-96231b3b80d8
2009-02-22Introduce the BuildVectorSDNode class that encapsulates the ISD::BUILD_VECTORScott Michel
instruction. The class also consolidates the code for detecting constant splats that's shared across PowerPC and the CellSPU backends (and might be useful for other backends.) Also introduces SelectionDAG::getBUID_VECTOR() for generating new BUILD_VECTOR nodes. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@65296 91177308-0d34-0410-b5e6-96231b3b80d8
2009-02-22Revert the part of 64623 that attempted to align the source in aDan Gohman
memcpy to match the alignment of the destination. It isn't necessary for making loads and stores handled like the SSE loadu/storeu intrinsics, and it was causing a performance regression in MultiSource/Applications/JM/lencod. The problem appears to have been a memcpy that copies from some highly aligned array into an alloca; the alloca was then being assigned a large alignment, which required codegen to perform dynamic stack-pointer re-alignment, which forced the enclosing function to have a frame pointer, which led to increased spilling. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@65289 91177308-0d34-0410-b5e6-96231b3b80d8
2009-02-22Properly parenthesize this expression, fixing a real bug in the newDan Gohman
-full-lsr code, as well as a GCC warning. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@65288 91177308-0d34-0410-b5e6-96231b3b80d8
2009-02-22If a use operand is marked isKill, don't forget to add kill to its live ↵Evan Cheng
interval as well. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@65279 91177308-0d34-0410-b5e6-96231b3b80d8
2009-02-22Add a note.Evan Cheng
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@65275 91177308-0d34-0410-b5e6-96231b3b80d8
2009-02-22Be bug compatible with gcc by returning MMX values in RAX.Evan Cheng
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@65274 91177308-0d34-0410-b5e6-96231b3b80d8
2009-02-22Do not consider MMX_MOVD64rr a move instructions. The source register is in ↵Evan Cheng
GR32, the destination is VR64. They are not compatible. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@65273 91177308-0d34-0410-b5e6-96231b3b80d8
2009-02-22Only try to sink immediate when TLI is not null. It needs to check if ↵Evan Cheng
immediate would fit in target addressing field. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@65268 91177308-0d34-0410-b5e6-96231b3b80d8
2009-02-21Don't sign extend the char when expanding char -> int duringNick Lewycky
load(bitcast(char[4] to i32*)) evaluation. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@65246 91177308-0d34-0410-b5e6-96231b3b80d8
2009-02-21bug 3610: Floating point vaarg not softened.Richard Pennington
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@65239 91177308-0d34-0410-b5e6-96231b3b80d8
2009-02-21Drop bunch of half-working stuff in the ext_weak linkage support.Anton Korobeynikov
Now we're using one gross, but quite robust hack :) (previous ones did not work, for example, when ext_weak symbol was used deep inside constant expression in the initializer). The proper fix of this problem will require some quite huge asmprinter changes and that's why was postponed. This fixes PR3629 by the way :) git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@65230 91177308-0d34-0410-b5e6-96231b3b80d8
2009-02-21Add AddrModeMatcher.cppEvan Cheng
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@65228 91177308-0d34-0410-b5e6-96231b3b80d8
2009-02-21If two-address def is dead and the instruction does not define other ↵Evan Cheng
registers, and it doesn't produce side effects, just delete the instruction. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@65218 91177308-0d34-0410-b5e6-96231b3b80d8
2009-02-21Teach LSR sink to sink the immediate portion of the common expression back ↵Evan Cheng
into uses if they fit in address modes of all the uses. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@65215 91177308-0d34-0410-b5e6-96231b3b80d8
2009-02-21Make sure this doesn't access .end() too.Bill Wendling
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@65213 91177308-0d34-0410-b5e6-96231b3b80d8