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| author | Dan Gohman <gohman@apple.com> | 2009-08-11 19:56:00 +0000 |
|---|---|---|
| committer | Dan Gohman <gohman@apple.com> | 2009-08-11 19:56:00 +0000 |
| commit | 13c373cf0d165afb422c10c0ad066639d41d84ae (patch) | |
| tree | ddcbf09fda522261095a3b3e819967ec02bb6f8d /lib/VMCore | |
| parent | cc6e66ab427fd02a31b06ad6302098be72899516 (diff) | |
| download | external_llvm-13c373cf0d165afb422c10c0ad066639d41d84ae.zip external_llvm-13c373cf0d165afb422c10c0ad066639d41d84ae.tar.gz external_llvm-13c373cf0d165afb422c10c0ad066639d41d84ae.tar.bz2 | |
Don't set the isexact flag if an sdiv operator has been folded into
something else.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@78702 91177308-0d34-0410-b5e6-96231b3b80d8
Diffstat (limited to 'lib/VMCore')
| -rw-r--r-- | lib/VMCore/Constants.cpp | 5 |
1 files changed, 4 insertions, 1 deletions
diff --git a/lib/VMCore/Constants.cpp b/lib/VMCore/Constants.cpp index 70d4357..d71dc2c 100644 --- a/lib/VMCore/Constants.cpp +++ b/lib/VMCore/Constants.cpp @@ -607,7 +607,10 @@ Constant* ConstantVector::get(Constant* const* Vals, unsigned NumVals) { Constant* ConstantExpr::getExactSDiv(Constant* C1, Constant* C2) { Constant *C = getSDiv(C1, C2); - cast<SDivOperator>(C)->setIsExact(true); + // Set exact attribute, assuming constant folding didn't eliminate the + // SDiv. + if (SDivOperator *SDiv = dyn_cast<SDivOperator>(C)) + SDiv->setIsExact(true); return C; } |