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For PR950:

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This patch removes the SetCC instructions and replaces them with the ICmp
and FCmp instructions. The SetCondInst instruction has been removed and
been replaced with ICmpInst and FCmpInst.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@32751 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Reid Spencer
2006-12-23 06:05:41 +00:00
parent add2bd7f59
commit e4d87aa2de
87 changed files with 8093 additions and 6620 deletions
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43
lib/Transforms/Scalar/LowerPacked.cpp
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@@ -54,6 +54,10 @@ public:
/// @param BO the binary operator to convert
void visitBinaryOperator(BinaryOperator& BO);
/// @brief Lowers packed icmp operations.
/// @param CI the icmp operator to convert
void visitICmpInst(ICmpInst& IC);
/// @brief Lowers packed select instructions.
/// @param SELI the select operator to convert
void visitSelectInst(SelectInst& SELI);
@@ -269,6 +273,35 @@ void LowerPacked::visitBinaryOperator(BinaryOperator& BO)
}
}
void LowerPacked::visitICmpInst(ICmpInst& IC)
{
// Make sure both operands are PackedTypes
if (isa<PackedType>(IC.getOperand(0)->getType())) {
std::vector<Value*>& op0Vals = getValues(IC.getOperand(0));
std::vector<Value*>& op1Vals = getValues(IC.getOperand(1));
std::vector<Value*> result;
assert((op0Vals.size() == op1Vals.size()) &&
"The two packed operand to scalar maps must be equal in size.");
result.reserve(op0Vals.size());
// generate the new binary op and save the result
for (unsigned i = 0; i != op0Vals.size(); ++i) {
result.push_back(CmpInst::create(IC.getOpcode(),
IC.getPredicate(),
op0Vals[i],
op1Vals[i],
IC.getName() +
"." + utostr(i),
&IC));
}
setValues(&IC,result);
Changed = true;
instrsToRemove.push_back(&IC);
}
}
void LowerPacked::visitStoreInst(StoreInst& SI)
{
if (const PackedType* PKT =
@@ -376,12 +409,12 @@ void LowerPacked::visitInsertElementInst(InsertElementInst& IE)
}
} else {
for (unsigned i = 0; i != Vals.size(); ++i) {
SetCondInst *setcc =
new SetCondInst(Instruction::SetEQ, Idx,
ConstantInt::get(Type::UIntTy, i),
"setcc", &IE);
ICmpInst *icmp =
new ICmpInst(ICmpInst::ICMP_EQ, Idx,
ConstantInt::get(Type::UIntTy, i),
"icmp", &IE);
SelectInst *select =
new SelectInst(setcc, Elt, Vals[i], "select", &IE);
new SelectInst(icmp, Elt, Vals[i], "select", &IE);
result.push_back(select);
}
}