1343 static FCmpInst::Predicate evaluateFCmpRelation(Constant *V1, Constant *V2) {  in evaluateFCmpRelation()
1348   if (V1 == V2) return FCmpInst::FCMP_OEQ;  in evaluateFCmpRelation()
1355                       ConstantExpr::getFCmp(FCmpInst::FCMP_OEQ, V1, V2));  in evaluateFCmpRelation()
1357         return FCmpInst::FCMP_OEQ;  in evaluateFCmpRelation()
1359                       ConstantExpr::getFCmp(FCmpInst::FCMP_OLT, V1, V2));  in evaluateFCmpRelation()
1361         return FCmpInst::FCMP_OLT;  in evaluateFCmpRelation()
1363                       ConstantExpr::getFCmp(FCmpInst::FCMP_OGT, V1, V2));  in evaluateFCmpRelation()
1365         return FCmpInst::FCMP_OGT;  in evaluateFCmpRelation()
1368       return FCmpInst::BAD_FCMP_PREDICATE;  in evaluateFCmpRelation()
1372     FCmpInst::Predicate SwappedRelation = evaluateFCmpRelation(V2, V1);  in evaluateFCmpRelation()
1373     if (SwappedRelation != FCmpInst::BAD_FCMP_PREDICATE)  in evaluateFCmpRelation()
1374       return FCmpInst::getSwappedPredicate(SwappedRelation);  in evaluateFCmpRelation()
1392   return FCmpInst::BAD_FCMP_PREDICATE;  in evaluateFCmpRelation()
1686   if (pred == FCmpInst::FCMP_FALSE)  in ConstantFoldCompareInstruction()
1689   if (pred == FCmpInst::FCMP_TRUE)  in ConstantFoldCompareInstruction()
1770     case FCmpInst::FCMP_FALSE: return Constant::getNullValue(ResultTy);  in ConstantFoldCompareInstruction()
1771     case FCmpInst::FCMP_TRUE:  return Constant::getAllOnesValue(ResultTy);  in ConstantFoldCompareInstruction()
1772     case FCmpInst::FCMP_UNO:  in ConstantFoldCompareInstruction()
1774     case FCmpInst::FCMP_ORD:  in ConstantFoldCompareInstruction()
1776     case FCmpInst::FCMP_UEQ:  in ConstantFoldCompareInstruction()
1779     case FCmpInst::FCMP_OEQ:  in ConstantFoldCompareInstruction()
1781     case FCmpInst::FCMP_UNE:  in ConstantFoldCompareInstruction()
1783     case FCmpInst::FCMP_ONE:  in ConstantFoldCompareInstruction()
1786     case FCmpInst::FCMP_ULT:  in ConstantFoldCompareInstruction()
1789     case FCmpInst::FCMP_OLT:  in ConstantFoldCompareInstruction()
1791     case FCmpInst::FCMP_UGT:  in ConstantFoldCompareInstruction()
1794     case FCmpInst::FCMP_OGT:  in ConstantFoldCompareInstruction()
1796     case FCmpInst::FCMP_ULE:  in ConstantFoldCompareInstruction()
1798     case FCmpInst::FCMP_OLE:  in ConstantFoldCompareInstruction()
1801     case FCmpInst::FCMP_UGE:  in ConstantFoldCompareInstruction()
1803     case FCmpInst::FCMP_OGE:  in ConstantFoldCompareInstruction()
1832     case FCmpInst::FCMP_UNO:  in ConstantFoldCompareInstruction()
1833     case FCmpInst::FCMP_ORD:  in ConstantFoldCompareInstruction()
1834     case FCmpInst::FCMP_UEQ:  in ConstantFoldCompareInstruction()
1835     case FCmpInst::FCMP_UNE:  in ConstantFoldCompareInstruction()
1836     case FCmpInst::FCMP_ULT:  in ConstantFoldCompareInstruction()
1837     case FCmpInst::FCMP_UGT:  in ConstantFoldCompareInstruction()
1838     case FCmpInst::FCMP_ULE:  in ConstantFoldCompareInstruction()
1839     case FCmpInst::FCMP_UGE:  in ConstantFoldCompareInstruction()
1840     case FCmpInst::FCMP_TRUE:  in ConstantFoldCompareInstruction()
1841     case FCmpInst::FCMP_FALSE:  in ConstantFoldCompareInstruction()
1842     case FCmpInst::BAD_FCMP_PREDICATE:  in ConstantFoldCompareInstruction()
1844     case FCmpInst::FCMP_OEQ: // We know that C1 == C2  in ConstantFoldCompareInstruction()
1845       Result = (pred == FCmpInst::FCMP_UEQ || pred == FCmpInst::FCMP_OEQ ||  in ConstantFoldCompareInstruction()
1846                 pred == FCmpInst::FCMP_ULE || pred == FCmpInst::FCMP_OLE ||  in ConstantFoldCompareInstruction()
1847                 pred == FCmpInst::FCMP_UGE || pred == FCmpInst::FCMP_OGE);  in ConstantFoldCompareInstruction()
1849     case FCmpInst::FCMP_OLT: // We know that C1 < C2  in ConstantFoldCompareInstruction()
1850       Result = (pred == FCmpInst::FCMP_UNE || pred == FCmpInst::FCMP_ONE ||  in ConstantFoldCompareInstruction()
1851                 pred == FCmpInst::FCMP_ULT || pred == FCmpInst::FCMP_OLT ||  in ConstantFoldCompareInstruction()
1852                 pred == FCmpInst::FCMP_ULE || pred == FCmpInst::FCMP_OLE);  in ConstantFoldCompareInstruction()
1854     case FCmpInst::FCMP_OGT: // We know that C1 > C2  in ConstantFoldCompareInstruction()
1855       Result = (pred == FCmpInst::FCMP_UNE || pred == FCmpInst::FCMP_ONE ||  in ConstantFoldCompareInstruction()
1856                 pred == FCmpInst::FCMP_UGT || pred == FCmpInst::FCMP_OGT ||  in ConstantFoldCompareInstruction()
1857                 pred == FCmpInst::FCMP_UGE || pred == FCmpInst::FCMP_OGE);  in ConstantFoldCompareInstruction()
1859     case FCmpInst::FCMP_OLE: // We know that C1 <= C2  in ConstantFoldCompareInstruction()
1861       if (pred == FCmpInst::FCMP_UGT || pred == FCmpInst::FCMP_OGT)  in ConstantFoldCompareInstruction()
1863       else if (pred == FCmpInst::FCMP_ULT || pred == FCmpInst::FCMP_OLT)  in ConstantFoldCompareInstruction()
1866     case FCmpInst::FCMP_OGE: // We known that C1 >= C2  in ConstantFoldCompareInstruction()
1868       if (pred == FCmpInst::FCMP_ULT || pred == FCmpInst::FCMP_OLT)  in ConstantFoldCompareInstruction()
1870       else if (pred == FCmpInst::FCMP_UGT || pred == FCmpInst::FCMP_OGT)  in ConstantFoldCompareInstruction()
1873     case FCmpInst::FCMP_ONE: // We know that C1 != C2  in ConstantFoldCompareInstruction()
1875       if (pred == FCmpInst::FCMP_OEQ || pred == FCmpInst::FCMP_UEQ)  in ConstantFoldCompareInstruction()
1877       else if (pred == FCmpInst::FCMP_ONE || pred == FCmpInst::FCMP_UNE)  in ConstantFoldCompareInstruction()