1529 static FCmpInst::Predicate evaluateFCmpRelation(Constant *V1, Constant *V2) {  in evaluateFCmpRelation()
1535     return FCmpInst::BAD_FCMP_PREDICATE;  in evaluateFCmpRelation()
1538   if (V1 == V2) return FCmpInst::FCMP_OEQ;  in evaluateFCmpRelation()
1545                       ConstantExpr::getFCmp(FCmpInst::FCMP_OEQ, V1, V2));  in evaluateFCmpRelation()
1547         return FCmpInst::FCMP_OEQ;  in evaluateFCmpRelation()
1549                       ConstantExpr::getFCmp(FCmpInst::FCMP_OLT, V1, V2));  in evaluateFCmpRelation()
1551         return FCmpInst::FCMP_OLT;  in evaluateFCmpRelation()
1553                       ConstantExpr::getFCmp(FCmpInst::FCMP_OGT, V1, V2));  in evaluateFCmpRelation()
1555         return FCmpInst::FCMP_OGT;  in evaluateFCmpRelation()
1558       return FCmpInst::BAD_FCMP_PREDICATE;  in evaluateFCmpRelation()
1562     FCmpInst::Predicate SwappedRelation = evaluateFCmpRelation(V2, V1);  in evaluateFCmpRelation()
1563     if (SwappedRelation != FCmpInst::BAD_FCMP_PREDICATE)  in evaluateFCmpRelation()
1564       return FCmpInst::getSwappedPredicate(SwappedRelation);  in evaluateFCmpRelation()
1582   return FCmpInst::BAD_FCMP_PREDICATE;  in evaluateFCmpRelation()
1843   if (pred == FCmpInst::FCMP_FALSE)  in ConstantFoldCompareInstruction()
1846   if (pred == FCmpInst::FCMP_TRUE)  in ConstantFoldCompareInstruction()
1924     case FCmpInst::FCMP_FALSE: return Constant::getNullValue(ResultTy);  in ConstantFoldCompareInstruction()
1925     case FCmpInst::FCMP_TRUE:  return Constant::getAllOnesValue(ResultTy);  in ConstantFoldCompareInstruction()
1926     case FCmpInst::FCMP_UNO:  in ConstantFoldCompareInstruction()
1928     case FCmpInst::FCMP_ORD:  in ConstantFoldCompareInstruction()
1930     case FCmpInst::FCMP_UEQ:  in ConstantFoldCompareInstruction()
1933     case FCmpInst::FCMP_OEQ:     in ConstantFoldCompareInstruction()
1935     case FCmpInst::FCMP_UNE:  in ConstantFoldCompareInstruction()
1937     case FCmpInst::FCMP_ONE:     in ConstantFoldCompareInstruction()
1940     case FCmpInst::FCMP_ULT:   in ConstantFoldCompareInstruction()
1943     case FCmpInst::FCMP_OLT:     in ConstantFoldCompareInstruction()
1945     case FCmpInst::FCMP_UGT:  in ConstantFoldCompareInstruction()
1948     case FCmpInst::FCMP_OGT:  in ConstantFoldCompareInstruction()
1950     case FCmpInst::FCMP_ULE:  in ConstantFoldCompareInstruction()
1952     case FCmpInst::FCMP_OLE:   in ConstantFoldCompareInstruction()
1955     case FCmpInst::FCMP_UGE:  in ConstantFoldCompareInstruction()
1957     case FCmpInst::FCMP_OGE:   in ConstantFoldCompareInstruction()
1982     case FCmpInst::FCMP_UNO:  in ConstantFoldCompareInstruction()
1983     case FCmpInst::FCMP_ORD:  in ConstantFoldCompareInstruction()
1984     case FCmpInst::FCMP_UEQ:  in ConstantFoldCompareInstruction()
1985     case FCmpInst::FCMP_UNE:  in ConstantFoldCompareInstruction()
1986     case FCmpInst::FCMP_ULT:  in ConstantFoldCompareInstruction()
1987     case FCmpInst::FCMP_UGT:  in ConstantFoldCompareInstruction()
1988     case FCmpInst::FCMP_ULE:  in ConstantFoldCompareInstruction()
1989     case FCmpInst::FCMP_UGE:  in ConstantFoldCompareInstruction()
1990     case FCmpInst::FCMP_TRUE:  in ConstantFoldCompareInstruction()
1991     case FCmpInst::FCMP_FALSE:  in ConstantFoldCompareInstruction()
1992     case FCmpInst::BAD_FCMP_PREDICATE:  in ConstantFoldCompareInstruction()
1994     case FCmpInst::FCMP_OEQ: // We know that C1 == C2  in ConstantFoldCompareInstruction()
1995       Result = (pred == FCmpInst::FCMP_UEQ || pred == FCmpInst::FCMP_OEQ ||  in ConstantFoldCompareInstruction()
1996                 pred == FCmpInst::FCMP_ULE || pred == FCmpInst::FCMP_OLE ||  in ConstantFoldCompareInstruction()
1997                 pred == FCmpInst::FCMP_UGE || pred == FCmpInst::FCMP_OGE);  in ConstantFoldCompareInstruction()
1999     case FCmpInst::FCMP_OLT: // We know that C1 < C2  in ConstantFoldCompareInstruction()
2000       Result = (pred == FCmpInst::FCMP_UNE || pred == FCmpInst::FCMP_ONE ||  in ConstantFoldCompareInstruction()
2001                 pred == FCmpInst::FCMP_ULT || pred == FCmpInst::FCMP_OLT ||  in ConstantFoldCompareInstruction()
2002                 pred == FCmpInst::FCMP_ULE || pred == FCmpInst::FCMP_OLE);  in ConstantFoldCompareInstruction()
2004     case FCmpInst::FCMP_OGT: // We know that C1 > C2  in ConstantFoldCompareInstruction()
2005       Result = (pred == FCmpInst::FCMP_UNE || pred == FCmpInst::FCMP_ONE ||  in ConstantFoldCompareInstruction()
2006                 pred == FCmpInst::FCMP_UGT || pred == FCmpInst::FCMP_OGT ||  in ConstantFoldCompareInstruction()
2007                 pred == FCmpInst::FCMP_UGE || pred == FCmpInst::FCMP_OGE);  in ConstantFoldCompareInstruction()
2009     case FCmpInst::FCMP_OLE: // We know that C1 <= C2  in ConstantFoldCompareInstruction()
2011       if (pred == FCmpInst::FCMP_UGT || pred == FCmpInst::FCMP_OGT)   in ConstantFoldCompareInstruction()
2013       else if (pred == FCmpInst::FCMP_ULT || pred == FCmpInst::FCMP_OLT)   in ConstantFoldCompareInstruction()
2016     case FCmpInst::FCMP_OGE: // We known that C1 >= C2  in ConstantFoldCompareInstruction()
2018       if (pred == FCmpInst::FCMP_ULT || pred == FCmpInst::FCMP_OLT)   in ConstantFoldCompareInstruction()
2020       else if (pred == FCmpInst::FCMP_UGT || pred == FCmpInst::FCMP_OGT)   in ConstantFoldCompareInstruction()
2023     case FCmpInst::FCMP_ONE: // We know that C1 != C2  in ConstantFoldCompareInstruction()
2025       if (pred == FCmpInst::FCMP_OEQ || pred == FCmpInst::FCMP_UEQ)   in ConstantFoldCompareInstruction()
2027       else if (pred == FCmpInst::FCMP_ONE || pred == FCmpInst::FCMP_UNE)   in ConstantFoldCompareInstruction()