diff options
Diffstat (limited to 'llvm/lib/Analysis/ValueTracking.cpp')
| -rw-r--r-- | llvm/lib/Analysis/ValueTracking.cpp | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/llvm/lib/Analysis/ValueTracking.cpp b/llvm/lib/Analysis/ValueTracking.cpp index 811c5016529..4442df8cfd5 100644 --- a/llvm/lib/Analysis/ValueTracking.cpp +++ b/llvm/lib/Analysis/ValueTracking.cpp @@ -4574,6 +4574,8 @@ static SelectPatternResult matchSelectPattern(CmpInst::Predicate Pred, if (match(CmpRHS, m_APInt(C1))) { if ((CmpLHS == TrueVal && match(FalseVal, m_Neg(m_Specific(CmpLHS)))) || (CmpLHS == FalseVal && match(TrueVal, m_Neg(m_Specific(CmpLHS))))) { + // Set RHS to the negate operand. LHS was assigned to CmpLHS earlier. + RHS = (CmpLHS == TrueVal) ? FalseVal : TrueVal; // ABS(X) ==> (X >s 0) ? X : -X and (X >s -1) ? X : -X // NABS(X) ==> (X >s 0) ? -X : X and (X >s -1) ? -X : X |
