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Check constant expression validity more strictly

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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@15883 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Chris Lattner 2004-08-17 17:28:46 +00:00
parent c6d2f15037
commit 91b362bba9
1 changed files with 31 additions and 0 deletions
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31
lib/VMCore/Constants.cpp
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@ -1127,6 +1127,37 @@ Constant *ConstantExpr::getTy(const Type *ReqTy, unsigned Opcode,
}
Constant *ConstantExpr::get(unsigned Opcode, Constant *C1, Constant *C2) {
#ifndef NDEBUG
switch (Opcode) {
case Instruction::Add: case Instruction::Sub:
case Instruction::Mul: case Instruction::Div:
case Instruction::Rem:
assert(C1->getType() == C2->getType() && "Op types should be identical!");
assert((C1->getType()->isInteger() || C1->getType()->isFloatingPoint()) &&
"Tried to create an arithmetic operation on a non-arithmetic type!");
break;
case Instruction::And:
case Instruction::Or:
case Instruction::Xor:
assert(C1->getType() == C2->getType() && "Op types should be identical!");
assert(C1->getType()->isIntegral() &&
"Tried to create an logical operation on a non-integral type!");
break;
case Instruction::SetLT: case Instruction::SetGT: case Instruction::SetLE:
case Instruction::SetGE: case Instruction::SetEQ: case Instruction::SetNE:
assert(C1->getType() == C2->getType() && "Op types should be identical!");
break;
case Instruction::Shl:
case Instruction::Shr:
assert(C2->getType() == Type::UByteTy && "Shift should be by ubyte!");
assert(C1->getType()->isInteger() &&
"Tried to create a shift operation on a non-integer type!");
break;
default:
break;
}
#endif
if (Instruction::isRelational(Opcode))
return getTy(Type::BoolTy, Opcode, C1, C2);
else