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| author | Chris Lattner <sabre@nondot.org> | 2010-04-26 18:21:23 +0000 |
|---|---|---|
| committer | Chris Lattner <sabre@nondot.org> | 2010-04-26 18:21:23 +0000 |
| commit | 8581c260d3595fd78ce9f1585c85bea545fce5f3 (patch) | |
| tree | 33c0ee9b3113d1d2bd588eeee5cf23387a36bb00 /lib | |
| parent | 095539f97c5f395fdceaea4d979be24a2eded359 (diff) | |
fix PR6940: sitofp(undef) folds to 0.0, not undef.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@102358 91177308-0d34-0410-b5e6-96231b3b80d8
Diffstat (limited to 'lib')
| -rw-r--r-- | lib/Transforms/Scalar/SCCP.cpp | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/lib/Transforms/Scalar/SCCP.cpp b/lib/Transforms/Scalar/SCCP.cpp index 59cdee652d..907ece8fcc 100644 --- a/lib/Transforms/Scalar/SCCP.cpp +++ b/lib/Transforms/Scalar/SCCP.cpp @@ -1452,6 +1452,8 @@ bool SCCPSolver::ResolvedUndefsIn(Function &F) { // After a zero extend, we know the top part is zero. SExt doesn't have // to be handled here, because we don't know whether the top part is 1's // or 0's. + case Instruction::SIToFP: // some FP values are not possible, just use 0. + case Instruction::UIToFP: // some FP values are not possible, just use 0. markForcedConstant(I, Constant::getNullValue(ITy)); return true; case Instruction::Mul: |