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Fix minor issues with VICmp/VFCmp constant expressions

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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@54030 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Nate Begeman 2008-07-25 17:35:37 +00:00
parent beb572b698
commit b5557abcf1
3 changed files with 22 additions and 16 deletions
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5
include/llvm/Constants.h
View File

@ -565,7 +565,7 @@ protected:
static Constant *getTy(const Type *Ty, unsigned Opcode,
Constant *C1, Constant *C2);
static Constant *getCompareTy(unsigned short pred, Constant *C1,
Constant *C2);
Constant *C2, bool isVecCmp = false);
static Constant *getSelectTy(const Type *Ty,
Constant *C1, Constant *C2, Constant *C3);
static Constant *getGetElementPtrTy(const Type *Ty, Constant *C,
@ -677,7 +677,8 @@ public:
///
static Constant *get(unsigned Opcode, Constant *C1, Constant *C2);
/// @brief Return an ICmp or FCmp comparison operator constant expression.
/// @brief Return an ICmp, FCmp, VICmp, or VFCmp comparison operator constant
/// expression.
static Constant *getCompare(unsigned short pred, Constant *C1, Constant *C2);
/// ConstantExpr::get* - Return some common constants without having to

4
lib/Analysis/ConstantFolding.cpp
View File

@ -358,6 +358,8 @@ Constant *llvm::ConstantFoldInstOperands(unsigned Opcode, const Type *DestTy,
return 0;
case Instruction::ICmp:
case Instruction::FCmp:
case Instruction::VICmp:
case Instruction::VFCmp:
assert(0 &&"This function is invalid for compares: no predicate specified");
case Instruction::PtrToInt:
// If the input is a inttoptr, eliminate the pair. This requires knowing
@ -473,7 +475,7 @@ Constant *llvm::ConstantFoldCompareInstOperands(unsigned Predicate,
}
}
}
return ConstantExpr::getCompare(Predicate, Ops[0], Ops[1]);
return ConstantExpr::getCompare(Predicate, Ops[0], Ops[1]);
}

29
lib/VMCore/Constants.cpp
View File

@ -2003,21 +2003,24 @@ Constant *ConstantExpr::getTy(const Type *ReqTy, unsigned Opcode,
}
Constant *ConstantExpr::getCompareTy(unsigned short predicate,
Constant *C1, Constant *C2) {
Constant *C1, Constant *C2,
bool isVecCmp) {
switch (predicate) {
default: assert(0 && "Invalid CmpInst predicate");
case FCmpInst::FCMP_FALSE: case FCmpInst::FCMP_OEQ: case FCmpInst::FCMP_OGT:
case FCmpInst::FCMP_OGE: case FCmpInst::FCMP_OLT: case FCmpInst::FCMP_OLE:
case FCmpInst::FCMP_ONE: case FCmpInst::FCMP_ORD: case FCmpInst::FCMP_UNO:
case FCmpInst::FCMP_UEQ: case FCmpInst::FCMP_UGT: case FCmpInst::FCMP_UGE:
case FCmpInst::FCMP_ULT: case FCmpInst::FCMP_ULE: case FCmpInst::FCMP_UNE:
case FCmpInst::FCMP_TRUE:
return getFCmp(predicate, C1, C2);
case ICmpInst::ICMP_EQ: case ICmpInst::ICMP_NE: case ICmpInst::ICMP_UGT:
case ICmpInst::ICMP_UGE: case ICmpInst::ICMP_ULT: case ICmpInst::ICMP_ULE:
case ICmpInst::ICMP_SGT: case ICmpInst::ICMP_SGE: case ICmpInst::ICMP_SLT:
case ICmpInst::ICMP_SLE:
return getICmp(predicate, C1, C2);
case CmpInst::FCMP_FALSE: case CmpInst::FCMP_OEQ: case CmpInst::FCMP_OGT:
case CmpInst::FCMP_OGE: case CmpInst::FCMP_OLT: case CmpInst::FCMP_OLE:
case CmpInst::FCMP_ONE: case CmpInst::FCMP_ORD: case CmpInst::FCMP_UNO:
case CmpInst::FCMP_UEQ: case CmpInst::FCMP_UGT: case CmpInst::FCMP_UGE:
case CmpInst::FCMP_ULT: case CmpInst::FCMP_ULE: case CmpInst::FCMP_UNE:
case CmpInst::FCMP_TRUE:
return isVecCmp ? getVFCmp(predicate, C1, C2)
: getFCmp(predicate, C1, C2);
case CmpInst::ICMP_EQ: case CmpInst::ICMP_NE: case CmpInst::ICMP_UGT:
case CmpInst::ICMP_UGE: case CmpInst::ICMP_ULT: case CmpInst::ICMP_ULE:
case CmpInst::ICMP_SGT: case CmpInst::ICMP_SGE: case CmpInst::ICMP_SLT:
case CmpInst::ICMP_SLE:
return isVecCmp ? getVICmp(predicate, C1, C2)
: getICmp(predicate, C1, C2);
}
}