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| author | Benjamin Kramer <benny.kra@googlemail.com> | 2016-02-29 12:18:25 +0000 |
|---|---|---|
| committer | Benjamin Kramer <benny.kra@googlemail.com> | 2016-02-29 12:18:25 +0000 |
| commit | 6bb15021b37cd79e0fa8c361880756f90d9b5ba3 (patch) | |
| tree | 2ba8919fac8941e173faa4e5e114487e1371562b /llvm/lib/Analysis/InstructionSimplify.cpp | |
| parent | 76d76bb006c8b6305357f9797faf52a063ce38a9 (diff) | |
| download | llvm-6bb15021b37cd79e0fa8c361880756f90d9b5ba3.zip llvm-6bb15021b37cd79e0fa8c361880756f90d9b5ba3.tar.gz llvm-6bb15021b37cd79e0fa8c361880756f90d9b5ba3.tar.bz2 | |
[InstSimplify] Restore fsub 0.0, (fsub 0.0, X) ==> X optzn
I accidentally removed this in r262212 but there was no test coverage to
detect it.
llvm-svn: 262215
Diffstat (limited to 'llvm/lib/Analysis/InstructionSimplify.cpp')
| -rw-r--r-- | llvm/lib/Analysis/InstructionSimplify.cpp | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/llvm/lib/Analysis/InstructionSimplify.cpp b/llvm/lib/Analysis/InstructionSimplify.cpp index aca19de..bb0a275 100644 --- a/llvm/lib/Analysis/InstructionSimplify.cpp +++ b/llvm/lib/Analysis/InstructionSimplify.cpp @@ -839,7 +839,7 @@ static Value *SimplifyFSubInst(Value *Op0, Value *Op1, FastMathFlags FMF, return X; // fsub 0.0, (fsub 0.0, X) ==> X if signed zeros are ignored. - if (FMF.noSignedZeros() && match(Op0, m_NegZero()) && + if (FMF.noSignedZeros() && match(Op0, m_AnyZero()) && match(Op1, m_FSub(m_AnyZero(), m_Value(X)))) return X; |