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/Analysis/ScalarEvolutionExpander.cpp | |
| parent | 46ada19645c981a0b7932487d163f7582074a4d9 (diff) | |
| download | llvm-069d6f3396856655d5d4ba155ee16eb0209d38b0.tar.gz llvm-069d6f3396856655d5d4ba155ee16eb0209d38b0.tar.bz2 llvm-069d6f3396856655d5d4ba155ee16eb0209d38b0.tar.xz | |
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/Analysis/ScalarEvolutionExpander.cpp')
| -rw-r--r-- | lib/Analysis/ScalarEvolutionExpander.cpp | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/lib/Analysis/ScalarEvolutionExpander.cpp b/lib/Analysis/ScalarEvolutionExpander.cpp index 9aa8bfbdb1..b6c7ce6448 100644 --- a/lib/Analysis/ScalarEvolutionExpander.cpp +++ b/lib/Analysis/ScalarEvolutionExpander.cpp @@ -1087,7 +1087,7 @@ Value *SCEVExpander::expand(const SCEV *S) { // If the SCEV is computable at this level, insert it into the header // after the PHIs (and after any other instructions that we've inserted // there) so that it is guaranteed to dominate any user inside the loop. - if (L && S->hasComputableLoopEvolution(L)) + if (L && S->hasComputableLoopEvolution(L) && L != PostIncLoop) InsertPt = L->getHeader()->getFirstNonPHI(); while (isInsertedInstruction(InsertPt)) InsertPt = llvm::next(BasicBlock::iterator(InsertPt)); |