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author | Matt Arsenault <Matthew.Arsenault@amd.com> | 2014-04-24 00:01:09 +0000 |
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committer | Matt Arsenault <Matthew.Arsenault@amd.com> | 2014-04-24 00:01:09 +0000 |
commit | 8bd9405026b50394e173a4b3159aacd841efe564 (patch) | |
tree | ab0b76d0376be6cf50e3e2ee5d150cfeaf74d324 /lib/Transforms | |
parent | 9f2150c0466e7061985171ce46c15912a7d8398c (diff) | |
download | llvm-8bd9405026b50394e173a4b3159aacd841efe564.tar.gz llvm-8bd9405026b50394e173a4b3159aacd841efe564.tar.bz2 llvm-8bd9405026b50394e173a4b3159aacd841efe564.tar.xz |
Handle addrspacecast when looking at memcpys from globals
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@207054 91177308-0d34-0410-b5e6-96231b3b80d8
Diffstat (limited to 'lib/Transforms')
-rw-r--r-- | lib/Transforms/InstCombine/InstCombineLoadStoreAlloca.cpp | 9 |
1 files changed, 6 insertions, 3 deletions
diff --git a/lib/Transforms/InstCombine/InstCombineLoadStoreAlloca.cpp b/lib/Transforms/InstCombine/InstCombineLoadStoreAlloca.cpp index 6fea7f2ac2..dceb1a83e5 100644 --- a/lib/Transforms/InstCombine/InstCombineLoadStoreAlloca.cpp +++ b/lib/Transforms/InstCombine/InstCombineLoadStoreAlloca.cpp @@ -31,10 +31,13 @@ STATISTIC(NumGlobalCopies, "Number of allocas copied from constant global"); static bool pointsToConstantGlobal(Value *V) { if (GlobalVariable *GV = dyn_cast<GlobalVariable>(V)) return GV->isConstant(); - if (ConstantExpr *CE = dyn_cast<ConstantExpr>(V)) + + if (ConstantExpr *CE = dyn_cast<ConstantExpr>(V)) { if (CE->getOpcode() == Instruction::BitCast || + CE->getOpcode() == Instruction::AddrSpaceCast || CE->getOpcode() == Instruction::GetElementPtr) return pointsToConstantGlobal(CE->getOperand(0)); + } return false; } @@ -62,9 +65,9 @@ isOnlyCopiedFromConstantGlobal(Value *V, MemTransferInst *&TheCopy, continue; } - if (BitCastInst *BCI = dyn_cast<BitCastInst>(I)) { + if (isa<BitCastInst>(I) || isa<AddrSpaceCastInst>(I)) { // If uses of the bitcast are ok, we are ok. - if (!isOnlyCopiedFromConstantGlobal(BCI, TheCopy, ToDelete, IsOffset)) + if (!isOnlyCopiedFromConstantGlobal(I, TheCopy, ToDelete, IsOffset)) return false; continue; } |