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| author | Dan Gohman <gohman@apple.com> | 2010-03-02 01:59:21 +0000 |
|---|---|---|
| committer | Dan Gohman <gohman@apple.com> | 2010-03-02 01:59:21 +0000 |
| commit | 52f55639732cffc7615f71d4f7521a19c1db43d8 (patch) | |
| tree | 9763a21029cbfbe1eb00941bb29905a8635c3efc /llvm/lib/Transforms/Scalar/LoopStrengthReduce.cpp | |
| parent | 78c5b7a76d825f01e8519b5a7fd74a645c4a9ad5 (diff) | |
| download | bcm5719-llvm-52f55639732cffc7615f71d4f7521a19c1db43d8.tar.gz bcm5719-llvm-52f55639732cffc7615f71d4f7521a19c1db43d8.zip | |
Non-affine post-inc SCEV expansions have more code which must be
emitted after the increment. Make sure the insert position
reflects this. This fixes PR6453.
llvm-svn: 97537
Diffstat (limited to 'llvm/lib/Transforms/Scalar/LoopStrengthReduce.cpp')
| -rw-r--r-- | llvm/lib/Transforms/Scalar/LoopStrengthReduce.cpp | 8 |
1 files changed, 6 insertions, 2 deletions
diff --git a/llvm/lib/Transforms/Scalar/LoopStrengthReduce.cpp b/llvm/lib/Transforms/Scalar/LoopStrengthReduce.cpp index 8bbf19345ab..14274296de7 100644 --- a/llvm/lib/Transforms/Scalar/LoopStrengthReduce.cpp +++ b/llvm/lib/Transforms/Scalar/LoopStrengthReduce.cpp @@ -2793,8 +2793,12 @@ Value *LSRInstance::Expand(const LSRFixup &LF, if (Instruction *I = dyn_cast<Instruction>(cast<ICmpInst>(LF.UserInst)->getOperand(1))) Inputs.push_back(I); - if (LF.PostIncLoop && !L->contains(LF.UserInst)) - Inputs.push_back(L->getLoopLatch()->getTerminator()); + if (LF.PostIncLoop) { + if (!L->contains(LF.UserInst)) + Inputs.push_back(L->getLoopLatch()->getTerminator()); + else + Inputs.push_back(IVIncInsertPos); + } // Then, climb up the immediate dominator tree as far as we can go while // still being dominated by the input positions. |
