diff options
Diffstat (limited to 'llvm/lib/Analysis/IVDescriptors.cpp')
| -rw-r--r-- | llvm/lib/Analysis/IVDescriptors.cpp | 13 |
1 files changed, 4 insertions, 9 deletions
diff --git a/llvm/lib/Analysis/IVDescriptors.cpp b/llvm/lib/Analysis/IVDescriptors.cpp index b8c540c..9f8ac6e 100644 --- a/llvm/lib/Analysis/IVDescriptors.cpp +++ b/llvm/lib/Analysis/IVDescriptors.cpp @@ -849,17 +849,12 @@ RecurrenceDescriptor::isMinMaxPattern(Instruction *I, RecurKind Kind, /// %sum.2 = select %cmp, %add, %sum.1 RecurrenceDescriptor::InstDesc RecurrenceDescriptor::isConditionalRdxPattern(Instruction *I) { - SelectInst *SI = dyn_cast<SelectInst>(I); - if (!SI) - return InstDesc(false, I); - - CmpInst *CI = dyn_cast<CmpInst>(SI->getCondition()); + Value *TrueVal, *FalseVal; // Only handle single use cases for now. - if (!CI || !CI->hasOneUse()) + if (!match(I, + m_Select(m_OneUse(m_Cmp()), m_Value(TrueVal), m_Value(FalseVal)))) return InstDesc(false, I); - Value *TrueVal = SI->getTrueValue(); - Value *FalseVal = SI->getFalseValue(); // Handle only when either of operands of select instruction is a PHI // node for now. if ((isa<PHINode>(TrueVal) && isa<PHINode>(FalseVal)) || @@ -886,7 +881,7 @@ RecurrenceDescriptor::isConditionalRdxPattern(Instruction *I) { if (!IPhi || IPhi != FalseVal) return InstDesc(false, I); - return InstDesc(true, SI); + return InstDesc(true, I); } RecurrenceDescriptor::InstDesc RecurrenceDescriptor::isRecurrenceInstr( |