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2013-02-12Actually delete this code, since it's really not clear what it'sDan Gohman
trying to do. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@175014 91177308-0d34-0410-b5e6-96231b3b80d8
2013-02-12Record PRE predecessors with a SmallVector instead of a DenseMap, andDan Gohman
avoid a second pred_iterator traversal. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@175001 91177308-0d34-0410-b5e6-96231b3b80d8
2013-02-12When disabling PRE for a value is directly redundant with itselfDan Gohman
(through a loop), don't continue to iterate through the reamining predecessors. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@174994 91177308-0d34-0410-b5e6-96231b3b80d8
2013-02-12Check that pointers are removed from maps before calling delete on the pointers,Dan Gohman
for tidiness' sake. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@174988 91177308-0d34-0410-b5e6-96231b3b80d8
2013-02-12Minor code simplification.Dan Gohman
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@174985 91177308-0d34-0410-b5e6-96231b3b80d8
2013-02-12[ASan] Do not use kDefaultShort64bitShadowOffset on Mac, where the binaries ↵Alexander Potapenko
may get mapped at 0x100000000+ and thus may interleave with the shadow. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@174964 91177308-0d34-0410-b5e6-96231b3b80d8
2013-02-12[asan] change the default mapping offset on x86_64 to 0x7fff8000. This gives ↵Kostya Serebryany
roughly 5% speedup. Since this is an ABI change, bump the asan ABI version by renaming __asan_init to __asan_init_v1. llvm part, compiler-rt part will follow git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@174957 91177308-0d34-0410-b5e6-96231b3b80d8
2013-02-11BBVectorize: Don't over-search when building the dependency mapHal Finkel
When building the pairable-instruction dependency map, don't search past the last pairable instruction. For large blocks that have been divided into multiple instruction groups, searching past the last instruction in each group is very wasteful. This gives a 32% speedup on the csa.ll test case from PR15222 (when using 50 instructions in each group). No functionality change intended. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@174915 91177308-0d34-0410-b5e6-96231b3b80d8
2013-02-11BBVectorize: Omit unnecessary entries in PairableInstUsersHal Finkel
This map is queried only for instructions in pairs of pairable instructions; so make sure that only pairs of pairable instructions are added to the map. This gives a 3.5% speedup on the csa.ll test case from PR15222. No functionality change intended. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@174914 91177308-0d34-0410-b5e6-96231b3b80d8
2013-02-11Optimization: bitcast (<1 x ...> insertelement ..., X, ...) to ... ==> ↵Michael Ilseman
bitcast X to ... git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@174905 91177308-0d34-0410-b5e6-96231b3b80d8
2013-02-11BBVectorize: Eliminate one more restricted linear searchHal Finkel
This eliminates one more linear search over a range of std::multimap entries. This gives a 22% speedup on the csa.ll test case from PR15222. No functionality change intended. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@174893 91177308-0d34-0410-b5e6-96231b3b80d8
2013-02-11[asan] added a flag -mllvm asan-short-64bit-mapping-offset=1 (0 by default)Kostya Serebryany
This flag makes asan use a small (<2G) offset for 64-bit asan shadow mapping. On x86_64 this saves us a register, thus achieving ~2/3 of the zero-base-offset's benefits in both performance and code size. Thanks Jakub Jelinek for the idea. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@174886 91177308-0d34-0410-b5e6-96231b3b80d8
2013-02-11BBVectorize: Remove the linear searches from pair connection searchingHal Finkel
This removes the last of the linear searches over ranges of std::multimap iterators, giving a 7% speedup on the doduc.bc input from PR15222. No functionality change intended. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@174859 91177308-0d34-0410-b5e6-96231b3b80d8
2013-02-11BBVectorize: Avoid linear searches within the load-move setHal Finkel
This is another cleanup aimed at eliminating linear searches in ranges of std::multimap. No functionality change intended. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@174858 91177308-0d34-0410-b5e6-96231b3b80d8
2013-02-11BBVectorize: isa/cast cleanup in getInstructionTypesHal Finkel
Profiling suggests that getInstructionTypes is performance-sensitive, this cleans up some double-casting in that function in favor of using dyn_cast. No functionality change intended. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@174857 91177308-0d34-0410-b5e6-96231b3b80d8
2013-02-11BBVectorize: Make the bookkeeping to support full cycle checking less expensiveHal Finkel
By itself, this does not have much of an effect, but only because in the default configuration the full cycle checks are used only for small problem sizes. This is part of a general cleanup of uses of iteration over std::multimap ranges only for the purpose of checking membership. No functionality change intended. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@174856 91177308-0d34-0410-b5e6-96231b3b80d8
2013-02-09LSR IVChain improvement.Andrew Trick
Handle chains in which the same offset is used for both loads and stores to the same array. Fixes rdar://11410078. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@174789 91177308-0d34-0410-b5e6-96231b3b80d8
2013-02-09Remove #includes from the commonly used LoopInfo.h.Jakub Staszak
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@174786 91177308-0d34-0410-b5e6-96231b3b80d8
2013-02-08Revert "Add LLVMContext::emitWarning methods and use them. ↵Bob Wilson
<rdar://problem/12867368>" This reverts r171041. This was a nice idea that didn't work out well. Clang warnings need to be associated with warning groups so that they can be selectively disabled, promoted to errors, etc. This simplistic patch didn't allow for that. Enhancing it to provide some way for the backend to specify a front-end warning type seems like overkill for the few uses of this, at least for now. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@174748 91177308-0d34-0410-b5e6-96231b3b80d8
2013-02-08BBVectorize: Use TTI->getAddressComputationCostHal Finkel
This is a follow-up to the cost-model change in r174713 which splits the cost of a memory operation between the address computation and the actual memory access. In r174713, this cost is always added to the memory operation cost, and so BBVectorize will do the same. Currently, this new cost function is used only by ARM, and I don't have any ARM test cases for BBVectorize. Assistance in generating some good ARM test cases for BBVectorize would be greatly appreciated! git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@174743 91177308-0d34-0410-b5e6-96231b3b80d8
2013-02-08[SimplifyLibCalls] Library call simplification doen't work if the call site Chad Rosier
isn't using the default calling convention. However, if the transformation is from a call to inline IR, then the calling convention doesn't matter. rdar://13157990 git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@174724 91177308-0d34-0410-b5e6-96231b3b80d8
2013-02-08Typos.Jakob Stoklund Olesen
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@174723 91177308-0d34-0410-b5e6-96231b3b80d8
2013-02-08ARM cost model: Address computation in vector mem ops not freeArnold Schwaighofer
Adds a function to target transform info to query for the cost of address computation. The cost model analysis pass now also queries this interface. The code in LoopVectorize adds the cost of address computation as part of the memory instruction cost calculation. Only there, we know whether the instruction will be scalarized or not. Increase the penality for inserting in to D registers on swift. This becomes necessary because we now always assume that address computation has a cost and three is a closer value to the architecture. radar://13097204 git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@174713 91177308-0d34-0410-b5e6-96231b3b80d8
2013-02-08Test CommitMichael Kuperstein
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@174709 91177308-0d34-0410-b5e6-96231b3b80d8
2013-02-08Revert "Have InstCombine call SipmlifyCall when handling calls. Test case ↵Andrew Trick
included." This reverts commit 3854a5d90fee52af1065edbed34521fff6cdc18d. This causes a clang unit test to hang: vtable-available-externally.cpp. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@174692 91177308-0d34-0410-b5e6-96231b3b80d8
2013-02-07Have InstCombine call SipmlifyCall when handling calls. Test case included.Michael Ilseman
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@174675 91177308-0d34-0410-b5e6-96231b3b80d8
2013-02-07fix 80-col violation and fix the docs.Nadav Rotem
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@174671 91177308-0d34-0410-b5e6-96231b3b80d8
2013-02-07Loop Vectorizer: Refactor Memory Cost ComputationArnold Schwaighofer
We don't want too many classes in a pass and the classes obscure the details. I was going a little overboard with object modeling here. Replace classes by generic code that handles both loads and stores. No functionality change intended. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@174646 91177308-0d34-0410-b5e6-96231b3b80d8
2013-02-07Moved some comments due to the recent refactoring of ObjCARC.Michael Gottesman
1. Moved a comment from ObjCARCOpts.cpp -> ObjCARCContract.cpp. 2. Removed a comment from ObjCARCOpts.cpp that was already moved to ObjCARCAliasAnalysis.h/.cpp. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@174581 91177308-0d34-0410-b5e6-96231b3b80d8
2013-02-07Preserve fast-math flags after reassociation and commutation. Update test casesMichael Ilseman
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@174571 91177308-0d34-0410-b5e6-96231b3b80d8
2013-02-05InstCombine: Fix and simplify the inttoptr side too.Benjamin Kramer
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@174438 91177308-0d34-0410-b5e6-96231b3b80d8
2013-02-05Removed explicit inline as per the LLVM style guide.Michael Gottesman
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@174432 91177308-0d34-0410-b5e6-96231b3b80d8
2013-02-05InstCombine: Harden code to work with vectors of pointers and simplify it a bit.Benjamin Kramer
Found by running instcombine on a fabricated test case for the constant folder. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@174430 91177308-0d34-0410-b5e6-96231b3b80d8
2013-02-05Loop Vectorizer: Refactor code to compute vectorized memory instruction costArnold Schwaighofer
Introduce a helper class that computes the cost of memory access instructions. No functionality change intended. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@174422 91177308-0d34-0410-b5e6-96231b3b80d8
2013-02-05[SjLj Prepare] When demoting an invoke instructions to the stack, if the normalChad Rosier
edge is critical, then split it so we can insert the store. rdar://13126179 git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@174418 91177308-0d34-0410-b5e6-96231b3b80d8
2013-02-05Loop Vectorizer: Handle pointer stores/loads in getWidestType()Arnold Schwaighofer
In the loop vectorizer cost model, we used to ignore stores/loads of a pointer type when computing the widest type within a loop. This meant that if we had only stores/loads of pointers in a loop we would return a widest type of 8bits (instead of 32 or 64 bit) and therefore a vector factor that was too big. Now, if we see a consecutive store/load of pointers we use the size of a pointer (from data layout). This problem occured in SingleSource/Benchmarks/Shootout-C++/hash.cpp (reduced test case is the first test in vector_ptr_load_store.ll). radar://13139343 git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@174377 91177308-0d34-0410-b5e6-96231b3b80d8
2013-02-02Revert accidental commit (ran svn commit from wrong directory).Nick Lewycky
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@174241 91177308-0d34-0410-b5e6-96231b3b80d8
2013-02-02This patch makes "&Cls::purevfn" not an odr use. This isn't what the standardNick Lewycky
says, but that's a defect (to be filed). "Cls::purevfn()" is still an odr use. Also fixes a bug in the previous patch that caused us to not mark the function referenced just because we didn't want to mark it odr used. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@174240 91177308-0d34-0410-b5e6-96231b3b80d8
2013-02-01This patch aims to improve compile time performance by increasingPreston Gurd
the SCEV vector size in LoopStrengthReduce. It is observed that the BaseRegs vector size is 4 in most cases, and elements are frequently copied when it is initialized as SmallVector<const SCEV *, 2> BaseRegs. Our benchmark results show that the compilation time performance improved by ~0.5%. Patch by Wan Xiaofei. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@174219 91177308-0d34-0410-b5e6-96231b3b80d8
2013-02-01Revert r174152. The shift amount may overflow and in that case this ↵Nadav Rotem
transformation is illegal. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@174156 91177308-0d34-0410-b5e6-96231b3b80d8
2013-02-01Optimize shift lefts of a constant by a value plus constant into a single shift.Nadav Rotem
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@174152 91177308-0d34-0410-b5e6-96231b3b80d8
2013-01-31Linker: correctly link in dbg.declareManman Ren
This is a re-worked version of r174048. Given source IR: call void @llvm.dbg.declare(metadata !{i32* %argc.addr}, metadata !14), !dbg !15 we used to generate call void @llvm.dbg.declare(metadata !27, metadata !28), !dbg !29 !27 = metadata !{null} With this patch, we will correctly generate call void @llvm.dbg.declare(metadata !{i32* %argc.addr}, metadata !27), !dbg !28 Looking up %argc.addr in ValueMap will return null, since %argc.addr is already correctly set up, we can use identity mapping. rdar://problem/13089880 git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@174093 91177308-0d34-0410-b5e6-96231b3b80d8
2013-01-31Revert r173946. This breaks compilation of googletest with ClangAlexey Samsonov
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@174048 91177308-0d34-0410-b5e6-96231b3b80d8
2013-01-31Change GetPointerBaseWithConstantOffset's DataLayout argument from aDan Gohman
reference to a pointer, so that it can handle the case where DataLayout is not available and behave conservatively. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@174024 91177308-0d34-0410-b5e6-96231b3b80d8
2013-01-30Remove addRetAttributes and addFnAttributes, which aren't useful abstractions.Bill Wendling
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@173992 91177308-0d34-0410-b5e6-96231b3b80d8
2013-01-30Convert typeIncompatible to return an AttributeSet.Bill Wendling
There are still places which treat the Attribute object as a collection of attributes. I'm systematically removing them. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@173990 91177308-0d34-0410-b5e6-96231b3b80d8
2013-01-30Linker: correctly link in dbg.declareManman Ren
Given source IR: call void @llvm.dbg.declare(metadata !{i32* %argc.addr}, metadata !14), !dbg !15 we used to generate call void @llvm.dbg.declare(metadata !27, metadata !28), !dbg !29 !27 = metadata !{null} With this patch, we will correctly generate call void @llvm.dbg.declare(metadata !{i32* %argc.addr}, metadata !27), !dbg !28 Looking up %argc.addr in ValueMap will return null, since %argc.addr is already correctly set up, we can use identity mapping. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@173946 91177308-0d34-0410-b5e6-96231b3b80d8
2013-01-30InstCombine: canonicalize sext-and --> selectNadav Rotem
sext-not-and --> select. Patch by Muhammad Tauqir Ahmad. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@173901 91177308-0d34-0410-b5e6-96231b3b80d8
2013-01-29Made certain small functions in PtrState inlined.Michael Gottesman
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@173842 91177308-0d34-0410-b5e6-96231b3b80d8
2013-01-29LoopVectorize: convert TinyTripCountVectorThreshold constantPekka Jaaskelainen
to a command line switch. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@173837 91177308-0d34-0410-b5e6-96231b3b80d8
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