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* The C backend does not support arbitrary precision integers.Duncan Sands2009-02-251-0/+1
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@65447 91177308-0d34-0410-b5e6-96231b3b80d8
* Note on new type legalizer.Duncan Sands2009-02-251-0/+9
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@65446 91177308-0d34-0410-b5e6-96231b3b80d8
* Add note on support for arbitrary precision integers.Duncan Sands2009-02-251-1/+9
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@65445 91177308-0d34-0410-b5e6-96231b3b80d8
* more notes.Chris Lattner2009-02-251-2/+16
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@65439 91177308-0d34-0410-b5e6-96231b3b80d8
* Clean up dwarf writer, part 1. This eliminated the horrible recursive ↵Evan Cheng2009-02-255-338/+420
| | | | | | | | | 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
* Add a totally synthetic situation I came up with while looking at a bug inNick Lewycky2009-02-251-0/+17
| | | | | | | related code. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@65437 91177308-0d34-0410-b5e6-96231b3b80d8
* random notesChris Lattner2009-02-251-6/+21
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@65436 91177308-0d34-0410-b5e6-96231b3b80d8
* Recommend against using Gold to build LLVM.Nick Lewycky2009-02-251-0/+6
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@65435 91177308-0d34-0410-b5e6-96231b3b80d8
* don't know if there is a vmkit release to match 2.5Chris Lattner2009-02-251-1/+1
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@65434 91177308-0d34-0410-b5e6-96231b3b80d8
* update clang sectionChris Lattner2009-02-251-31/+24
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@65430 91177308-0d34-0410-b5e6-96231b3b80d8
* rip out llvm 2.4 details to make room for 2.5Chris Lattner2009-02-251-242/+19
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@65429 91177308-0d34-0410-b5e6-96231b3b80d8
* Expand tabs to spaces (overlooked in previous commit)Scott Michel2009-02-252-13/+13
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@65427 91177308-0d34-0410-b5e6-96231b3b80d8
* Remove all "cached" data from BuildVectorSDNode, preferring to retrieveScott Michel2009-02-253-53/+30
| | | | | | | | | | 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
* Added support to have TableGen provide information if an intrinsic (coreMon P Wang2009-02-245-2/+51
| | | | | | | or target) can be overloaded or not. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@65404 91177308-0d34-0410-b5e6-96231b3b80d8
* If compile unit's language is not set then don't crash while dump'ing ↵Devang Patel2009-02-241-1/+2
| | | | | | compile unit. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@65402 91177308-0d34-0410-b5e6-96231b3b80d8
* Extension of GEP in constant folder was broken (apparently this codeDaniel Dunbar2009-02-241-1/+1
| | | | | | | | 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
* Rename ScalarEvolution's getIterationCount to getBackedgeTakenCount,Dan Gohman2009-02-2421-146/+178
| | | | | | | | | | 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
* Overhaul my earlier submission due to feedback. It's a large patch, but most ofBill Wendling2009-02-2443-139/+174
| | | | | | | | | | | | | 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
* Add a debugging option for SSC DCE.Owen Anderson2009-02-241-0/+5
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@65375 91177308-0d34-0410-b5e6-96231b3b80d8
* - Use the "Fast" flag instead of "OptimizeForSize" to determine whether to emitBill Wendling2009-02-2412-22/+32
| | | | | | | | | | | 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
* Add a testcase for the problem fixed in r65289.Dan Gohman2009-02-241-0/+29
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@65365 91177308-0d34-0410-b5e6-96231b3b80d8
* Fix a ValueTracking rule: RHS means operand 1, not 0. Add a simpleDan Gohman2009-02-244-3/+16
| | | | | | | | 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
* Generalize the ChangeCompareStride code, in preparation forDan Gohman2009-02-241-94/+96
| | | | | | | handling non-constant strides. No functionality change. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@65363 91177308-0d34-0410-b5e6-96231b3b80d8
* Preserve the DominanceFrontier analysis in the LoopDeletion pass.Dan Gohman2009-02-241-2/+7
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@65359 91177308-0d34-0410-b5e6-96231b3b80d8
* gdb uses DW_AT_prototyped to identify K&R style in C based languages.Devang Patel2009-02-241-0/+5
| | | | | | | 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
* Un-XFAIL this test.Bill Wendling2009-02-241-1/+0
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@65355 91177308-0d34-0410-b5e6-96231b3b80d8
* While folding unconditional return move DbgRegionEndInst into the ↵Devang Patel2009-02-243-25/+14
| | | | | | | | | | | | | 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
* If there is not any debug info available for any global variables and any ↵Devang Patel2009-02-241-13/+26
| | | | | | 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
* Back out the change in 64918 that used sign-extensions when promotingDan Gohman2009-02-234-41/+15
| | | | | | | | | | 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
* Fast-isel can't do TLS yet, so it should fall back to SDISelDan Gohman2009-02-232-0/+16
| | | | | | | if it sees TLS addresses. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@65341 91177308-0d34-0410-b5e6-96231b3b80d8
* Correctly implement ImmutableMap::getMaxElement() by getting the actual ↵Ted Kremenek2009-02-231-1/+1
| | | | | | <key, value> pair. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@65327 91177308-0d34-0410-b5e6-96231b3b80d8
* Add ImmutableMap::getMaxElement(), a method that returns the <key,value> ↵Ted Kremenek2009-02-232-0/+16
| | | | | | pair in a ImmutableMap that has the highest ranked key. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@65326 91177308-0d34-0410-b5e6-96231b3b80d8
* LoopDeletion needs to inform ScalarEvolution when a loop is deleted,Dan Gohman2009-02-231-1/+4
| | | | | | | | | 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
* Use the -stack-alignment option instead of using a target tripleDan Gohman2009-02-231-4/+2
| | | | | | | for avoiding dynamic stack realignment. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@65319 91177308-0d34-0410-b5e6-96231b3b80d8
* IndVarSimplify preserves ScalarEvolution. In theDan Gohman2009-02-231-0/+1
| | | | | | | | -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
* Add test case for checkin @r65314.Zhou Sheng2009-02-231-0/+41
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@65315 91177308-0d34-0410-b5e6-96231b3b80d8
* Should reset DBI_Prev if DBI_Next == 0.Zhou Sheng2009-02-231-0/+2
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@65314 91177308-0d34-0410-b5e6-96231b3b80d8
* Only v1i16 (i.e. _m64) is returned via RAX / RDX.Evan Cheng2009-02-234-20/+60
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@65313 91177308-0d34-0410-b5e6-96231b3b80d8
* Make this test use darwin targe triple, to avoid stack traffic on linux.Nate Begeman2009-02-231-0/+2
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@65312 91177308-0d34-0410-b5e6-96231b3b80d8
* Generate better code for v8i16 shuffles on SSE2Nate Begeman2009-02-2314-281/+445
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | 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
* If nobody minds, I'm using LTO to produce faster binaries. Switch fast codegenNick Lewycky2009-02-231-2/+2
| | | | | | | off in libLTO. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@65310 91177308-0d34-0410-b5e6-96231b3b80d8
* Changed option name from inline-threshold to basic-inline-threshold becauseMon P Wang2009-02-231-1/+1
| | | | | | | 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
* fix some typos that Duncan noticedChris Lattner2009-02-231-3/+3
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@65306 91177308-0d34-0410-b5e6-96231b3b80d8
* Propagate debug loc info through prologue/epilogue.Bill Wendling2009-02-237-28/+39
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@65298 91177308-0d34-0410-b5e6-96231b3b80d8
* Introduce the BuildVectorSDNode class that encapsulates the ISD::BUILD_VECTORScott Michel2009-02-2214-318/+397
| | | | | | | | | | 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
* Add an option to the gold plugin to make it emit a file with the public apiNick Lewycky2009-02-221-1/+23
| | | | | | | | | | | list that can in turn be passed to -internalize pass through -internalize-public-api-file. Pass gold -plugin-opt=generate-api-file to produce "apifile.txt" in the current directory. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@65295 91177308-0d34-0410-b5e6-96231b3b80d8
* Revert the part of 64623 that attempted to align the source in aDan Gohman2009-02-221-1/+1
| | | | | | | | | | | | | | | | 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
* Properly parenthesize this expression, fixing a real bug in the newDan Gohman2009-02-221-1/+1
| | | | | | | -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
* bug 3610: Test case.Richard Pennington2009-02-221-0/+20
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@65287 91177308-0d34-0410-b5e6-96231b3b80d8
* If a use operand is marked isKill, don't forget to add kill to its live ↵Evan Cheng2009-02-222-4/+30
| | | | | | interval as well. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@65279 91177308-0d34-0410-b5e6-96231b3b80d8
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