diff options
| 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 | 069d6f3396856655d5d4ba155ee16eb0209d38b0 (patch) | |
| tree | 9e4a75f0aeb9eaf3c7760f5bbe9ea1c12134f3a1 /lib/Transforms/Scalar/LoopStrengthReduce.cpp | |
| parent | 46ada19645c981a0b7932487d163f7582074a4d9 (diff) | |
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.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@97537 91177308-0d34-0410-b5e6-96231b3b80d8
Diffstat (limited to 'lib/Transforms/Scalar/LoopStrengthReduce.cpp')
| -rw-r--r-- | lib/Transforms/Scalar/LoopStrengthReduce.cpp | 8 |
1 files changed, 6 insertions, 2 deletions
diff --git a/lib/Transforms/Scalar/LoopStrengthReduce.cpp b/lib/Transforms/Scalar/LoopStrengthReduce.cpp index 8bbf19345a..14274296de 100644 --- a/lib/Transforms/Scalar/LoopStrengthReduce.cpp +++ b/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. |