[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
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 @@
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;