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Add support for constant select expressions. Clarify the assertion failure msg.

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llvm-svn: 12613
This commit is contained in:
Brian Gaeke 2004-04-02 17:52:29 +00:00
parent b9a26ff8fc
commit 3fb4f87195
1 changed files with 17 additions and 3 deletions
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16
lib/Target/SparcV9/SparcV9PreSelection.cpp
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@ -125,10 +125,24 @@ static Instruction* DecomposeConstantExpr(ConstantExpr* CE,
std::vector<Value*>(CE->op_begin()+1, CE->op_end()), std::vector<Value*>(CE->op_begin()+1, CE->op_end()),
"constantGEP", &insertBefore); "constantGEP", &insertBefore);
case Instruction::Select: {
Value *C, *S1, *S2;
C = CE->getOperand (0);
if (ConstantExpr* CEarg = dyn_cast<ConstantExpr> (C))
C = DecomposeConstantExpr (CEarg, insertBefore);
S1 = CE->getOperand (1);
if (ConstantExpr* CEarg = dyn_cast<ConstantExpr> (S1))
S1 = DecomposeConstantExpr (CEarg, insertBefore);
S2 = CE->getOperand (2);
if (ConstantExpr* CEarg = dyn_cast<ConstantExpr> (S2))
S2 = DecomposeConstantExpr (CEarg, insertBefore);
return new SelectInst (C, S1, S2);
}
default: // must be a binary operator default: // must be a binary operator
assert(CE->getOpcode() >= Instruction::BinaryOpsBegin && assert(CE->getOpcode() >= Instruction::BinaryOpsBegin &&
CE->getOpcode() < Instruction::BinaryOpsEnd && CE->getOpcode() < Instruction::BinaryOpsEnd &&
"Unrecognized opcode in ConstantExpr"); "Unhandled opcode in ConstantExpr");
getArg1 = CE->getOperand(0); getArg1 = CE->getOperand(0);
if (ConstantExpr* CEarg = dyn_cast<ConstantExpr>(getArg1)) if (ConstantExpr* CEarg = dyn_cast<ConstantExpr>(getArg1))
getArg1 = DecomposeConstantExpr(CEarg, insertBefore); getArg1 = DecomposeConstantExpr(CEarg, insertBefore);