diff options
Diffstat (limited to 'lib/Transforms')
| -rw-r--r-- | lib/Transforms/InstCombine/InstCombineCompares.cpp | 5 |
1 files changed, 5 insertions, 0 deletions
diff --git a/lib/Transforms/InstCombine/InstCombineCompares.cpp b/lib/Transforms/InstCombine/InstCombineCompares.cpp index 6743885cd4..cb434bda57 100644 --- a/lib/Transforms/InstCombine/InstCombineCompares.cpp +++ b/lib/Transforms/InstCombine/InstCombineCompares.cpp @@ -2855,6 +2855,11 @@ Instruction *InstCombiner::visitFCmpInst(FCmpInst &I) { } } + // fcmp (fneg x), (fneg y) -> fcmp x, y + Value *X, *Y; + if (match(Op0, m_FNeg(m_Value(X))) && match(Op1, m_FNeg(m_Value(Y)))) + return new FCmpInst(I.getPredicate(), X, Y); + // fcmp (fpext x), (fpext y) -> fcmp x, y if (FPExtInst *LHSExt = dyn_cast<FPExtInst>(Op0)) if (FPExtInst *RHSExt = dyn_cast<FPExtInst>(Op1)) |