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2009-11-06Revert r86077 because it caused crashes in 179.art and 175.vpr on ARMVictor Hernandez
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@86213 91177308-0d34-0410-b5e6-96231b3b80d8
2009-11-06Do not try to emit debug info entry for dead global variable.Devang Patel
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@86212 91177308-0d34-0410-b5e6-96231b3b80d8
2009-11-06Factor out the printing of the leading tab into printInlineAsm.Dan Gohman
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@86199 91177308-0d34-0410-b5e6-96231b3b80d8
2009-11-05Use SUBREG_TO_REG instead of INSERT_SUBREG to model x86-64'sDan Gohman
implicit zero-extend. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@86196 91177308-0d34-0410-b5e6-96231b3b80d8
2009-11-05Teach LSR to avoid calling SplitCriticalEdge on edges with indirectbr.Dan Gohman
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@86193 91177308-0d34-0410-b5e6-96231b3b80d8
2009-11-05Fix the label name generation for address-taken labels to avoid potentialDan Gohman
problems with name collisions. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@86189 91177308-0d34-0410-b5e6-96231b3b80d8
2009-11-05Added support for renumbering existing index list elements. Removed some ↵Lang Hames
junk from the initial numbering code in runOnMachineFunction. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@86184 91177308-0d34-0410-b5e6-96231b3b80d8
2009-11-05Avoid calling getUniqueExitBlocks from within LoopSimplify, as it dependsDan Gohman
on loops having dedicated exits, which LoopSimplify can no longer always guarantee. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@86181 91177308-0d34-0410-b5e6-96231b3b80d8
2009-11-05LoopDeletion depends on loops having dedicated exits.Dan Gohman
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@86180 91177308-0d34-0410-b5e6-96231b3b80d8
2009-11-05The introduction of indirectbr meant the introduction ofDan Gohman
unsplittable critical edges, which means the introduction of loops which cannot be transformed to LoopSimplify form. Fix LoopSimplify to avoid transforming such loops into invalid code. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@86176 91177308-0d34-0410-b5e6-96231b3b80d8
2009-11-05Update various Loop optimization passes to cope with the possibility thatDan Gohman
LoopSimplify form may not be available. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@86175 91177308-0d34-0410-b5e6-96231b3b80d8
2009-11-05Fix bug in aggressive antidep breaking; liveness was not updated correctly ↵David Goodwin
for regions that do not have antidep candidates. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@86172 91177308-0d34-0410-b5e6-96231b3b80d8
2009-11-05Teach LoopUnroll how to bail if LoopSimplify can't give it what it needs.Dan Gohman
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@86164 91177308-0d34-0410-b5e6-96231b3b80d8
2009-11-05Call getAnalysis<LoopInfo> the normal way, instead of asking passed-inDan Gohman
LoopPassManager for it. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@86163 91177308-0d34-0410-b5e6-96231b3b80d8
2009-11-05Fix IVUsers to avoid assuming that the loop has a unique backedge.Dan Gohman
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@86161 91177308-0d34-0410-b5e6-96231b3b80d8
2009-11-05Delete an unused member variable.Dan Gohman
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@86160 91177308-0d34-0410-b5e6-96231b3b80d8
2009-11-05Factor out the predicate code for loopsimplify form exit blocks intoDan Gohman
a separate helper function. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@86159 91177308-0d34-0410-b5e6-96231b3b80d8
2009-11-05Avoid printing a redundant space in SDNode->dump().Dan Gohman
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@86151 91177308-0d34-0410-b5e6-96231b3b80d8
2009-11-05Remove uninteresting and confusing debug output.Dan Gohman
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@86149 91177308-0d34-0410-b5e6-96231b3b80d8
2009-11-05Add an assertion to catch indirectbr in SplitBlockPredecessors. ThisDan Gohman
makes several optimization passes abort in cases where they're currently silently miscompiling code. Remove the indirectbr assertion from SplitEdge. Indirectbr is only a problem for critical edges, and SplitEdge defers to SplitCriticalEdge to handle those, and SplitCriticalEdge has its own assertion for indirectbr. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@86147 91177308-0d34-0410-b5e6-96231b3b80d8
2009-11-05add a note from PR5313Chris Lattner
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@86146 91177308-0d34-0410-b5e6-96231b3b80d8
2009-11-05Teach SimplifyLibCalls to fold memcmp calls with constant arguments.Benjamin Kramer
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@86141 91177308-0d34-0410-b5e6-96231b3b80d8
2009-11-05Do map insert+find in one step. TODO -= 2.Benjamin Kramer
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@86133 91177308-0d34-0410-b5e6-96231b3b80d8
2009-11-05Path::createDirectoryOnDisk should ignore existing directories on win32 too.Benjamin Kramer
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@86132 91177308-0d34-0410-b5e6-96231b3b80d8
2009-11-05Reintroduce support for overloading target intrinsicsMon P Wang
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@86114 91177308-0d34-0410-b5e6-96231b3b80d8
2009-11-05Replace std::map.at() with std::map[].David Goodwin
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@86102 91177308-0d34-0410-b5e6-96231b3b80d8
2009-11-05Break anti-dependencies using free registers in a round-robin manner to ↵David Goodwin
avoid introducing new anti-dependencies. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@86098 91177308-0d34-0410-b5e6-96231b3b80d8
2009-11-05Now that code placement optimization pass is run for JIT, make sure it's ↵Evan Cheng
before pre-emit passes. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@86092 91177308-0d34-0410-b5e6-96231b3b80d8
2009-11-05Use WeakVH while storing metadata in containers.Devang Patel
This fixes PR5393. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@86091 91177308-0d34-0410-b5e6-96231b3b80d8
2009-11-05Code refactoring.Evan Cheng
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@86085 91177308-0d34-0410-b5e6-96231b3b80d8
2009-11-05Correctly add chain dependencies around calls and unknown-side-effect ↵David Goodwin
instructions. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@86080 91177308-0d34-0410-b5e6-96231b3b80d8
2009-11-05Update CreateMalloc so that its callers specify the size to allocate:Victor Hernandez
MallocInst-autoupgrade users use non-TargetData-computed allocation sizes. Optimization uses use TargetData to compute the allocation size. Now that malloc calls can have constant sizes, update isArrayMallocHelper() to use TargetData to determine the size of the malloced type and the size of malloced arrays. Extend getMallocType() to support malloc calls that have non-bitcast uses. Update OptimizeGlobalAddressOfMalloc() to optimize malloc calls that have non-bitcast uses. The bitcast use of a malloc call has to be treated specially here because the uses of the bitcast need to be replaced and the bitcast needs to be erased (just like the malloc call) for OptimizeGlobalAddressOfMalloc() to work correctly. Update PerformHeapAllocSRoA() to optimize malloc calls that have non-bitcast uses. The bitcast use of the malloc is not handled specially here because ReplaceUsesOfMallocWithGlobal replaces through the bitcast use. Update OptimizeOnceStoredGlobal() to not care about the malloc calls' bitcast use. Update all globalopt malloc tests to not rely on autoupgraded-MallocInsts, but instead use explicit malloc calls with correct allocation sizes. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@86077 91177308-0d34-0410-b5e6-96231b3b80d8
2009-11-04While calculating original type size for a derived type, handle type ↵Devang Patel
variants encoded as DIDerivedType appropriately. This improves bitfield support. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@86073 91177308-0d34-0410-b5e6-96231b3b80d8
2009-11-04Grammar.Jim Grosbach
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@86068 91177308-0d34-0410-b5e6-96231b3b80d8
2009-11-04improve DSE when TargetData is not around, based on work byChris Lattner
Hans Wennborg! git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@86067 91177308-0d34-0410-b5e6-96231b3b80d8
2009-11-04Now that the memory leak from McCat/08-main has been fixed (86056), re-enableJim Grosbach
aggressive testing of dynamic stack alignment. Note that this is off by default, and enabled for LLCBETA nightly results. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@86064 91177308-0d34-0410-b5e6-96231b3b80d8
2009-11-04If a function has no stack frame at all, dynamic realignment isn't necessary.Jim Grosbach
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@86057 91177308-0d34-0410-b5e6-96231b3b80d8
2009-11-04dynamic stack realignment necessitates scanning the floating point callee-Jim Grosbach
saved instructions even if no stack adjustment for those saves is needed. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@86056 91177308-0d34-0410-b5e6-96231b3b80d8
2009-11-04Fix DW_AT_data_member_location for bit-fields. It points to the location of ↵Devang Patel
annonymous field that covers respective field. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@86054 91177308-0d34-0410-b5e6-96231b3b80d8
2009-11-04Add PowerPC codegen for indirect branches.Bob Wilson
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@86050 91177308-0d34-0410-b5e6-96231b3b80d8
2009-11-04Handle empty/tombstone keys for LiveIndex more cleanly. Check for index ↵Lang Hames
sanity when constructing index list entries. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@86049 91177308-0d34-0410-b5e6-96231b3b80d8
2009-11-04A value is only assigned to errno if NumRead equals -1, so doDuncan Sands
not reason based on errno if NumRead has a different value. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@86046 91177308-0d34-0410-b5e6-96231b3b80d8
2009-11-04Add some options to disable various code gen optimizations.Eric Christopher
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@86044 91177308-0d34-0410-b5e6-96231b3b80d8
2009-11-04Array element size does not match array size but array is not a bitfield. Devang Patel
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@86043 91177308-0d34-0410-b5e6-96231b3b80d8
2009-11-04Print out an informative comment for KILL instructions.Jakob Stoklund Olesen
The KILL pseudo-instruction may survive to the asm printer pass, just like the IMPLICIT_DEF. Print the KILL as a comment instead of just leaving a blank line in the output. With -asm-verbose=0, a blank line is printed, like IMPLICIT?DEF. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@86041 91177308-0d34-0410-b5e6-96231b3b80d8
2009-11-04Fix an iterator invalidation bug that happens when a hashtableChris Lattner
resizes in IPSCCP. This fixes PR5394. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@86036 91177308-0d34-0410-b5e6-96231b3b80d8
2009-11-04RangeIsDefinedByCopyFromReg() should check for subreg_to_reg, insert_subreg,Evan Cheng
and extract_subreg as a "copy" that defines a valno. Also fixes a typo. These two issues prevent a simple subreg coalescing from happening before. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@86022 91177308-0d34-0410-b5e6-96231b3b80d8
2009-11-04move two functions up higher in the file. Delete a useless argumentChris Lattner
to EmitGEPOffset. Implement some new transforms for optimizing subtracts of two pointer to ints into the same vector. This happens for C++ iterator idioms for example, stringmap takes a const char* that points to the start and end of a string. Once inlined, we want the pointer difference to turn back into a length. This is rdar://7362831. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@86021 91177308-0d34-0410-b5e6-96231b3b80d8
2009-11-04The .n suffix must go after the predicate.Evan Cheng
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@86019 91177308-0d34-0410-b5e6-96231b3b80d8
2009-11-04Fix CMake makefilesDouglas Gregor
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@85994 91177308-0d34-0410-b5e6-96231b3b80d8
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