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| author | Dan Gohman <gohman@apple.com> | 2009-06-19 17:33:15 +0000 |
|---|---|---|
| committer | Dan Gohman <gohman@apple.com> | 2009-06-19 17:33:15 +0000 |
| commit | 2c1955c1f7d30c471b41b0c4ad175f26ff4b144f (patch) | |
| tree | ef04fcff2b455457ee7e6dc32da5034ca155c88d /lib/Analysis | |
| parent | df6785b1c17af715a95145f6dbf70090a5997fdc (diff) | |
| download | external_llvm-2c1955c1f7d30c471b41b0c4ad175f26ff4b144f.zip external_llvm-2c1955c1f7d30c471b41b0c4ad175f26ff4b144f.tar.gz external_llvm-2c1955c1f7d30c471b41b0c4ad175f26ff4b144f.tar.bz2 | |
Don't (unconditionally) use getSCEVAtScope to simplify the step
expression in IVUsers, because in the case of a use of a non-linear
addrec outside of a loop, this causes the addrec to be evaluated as
a linear addrec.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@73774 91177308-0d34-0410-b5e6-96231b3b80d8
Diffstat (limited to 'lib/Analysis')
| -rw-r--r-- | lib/Analysis/IVUsers.cpp | 1 |
1 files changed, 0 insertions, 1 deletions
diff --git a/lib/Analysis/IVUsers.cpp b/lib/Analysis/IVUsers.cpp index 0bacc39..6a53a83 100644 --- a/lib/Analysis/IVUsers.cpp +++ b/lib/Analysis/IVUsers.cpp @@ -112,7 +112,6 @@ static bool getSCEVStartAndStride(const SCEVHandle &SH, Loop *L, Loop *UseLoop, SCEVHandle AddRecStart = AddRec->getStart(); AddRecStart = SE->getSCEVAtScope(AddRecStart, UseLoop); SCEVHandle AddRecStride = AddRec->getStepRecurrence(*SE); - AddRecStride = SE->getSCEVAtScope(AddRecStride, UseLoop); // FIXME: If Start contains an SCEVAddRecExpr from a different loop, other // than an outer loop of the current loop, reject it. LSR has no concept of |