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Fix fallout in CodeGenPrepare from 56526. Will likely need more work.

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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@56546 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Eric Christopher 2008-09-24 05:32:41 +00:00
parent 2a5196fe67
commit 692bf6b85e
1 changed files with 136 additions and 119 deletions
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21
lib/Transforms/Scalar/CodeGenPrepare.cpp
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@ -927,6 +927,23 @@ bool CodeGenPrepare::OptimizeLoadStoreInst(Instruction *LdStInst, Value *Addr,
return true;
}
/// hasInlineAsmMemConstraint - Return true if the inline asm instruction being
/// processed uses a memory 'm' constraint.
static bool
hasInlineAsmMemConstraint(std::vector<InlineAsm::ConstraintInfo> &CInfos,
const TargetLowering *TLI) {
for (unsigned i = 0, e = CInfos.size(); i != e; ++i) {
InlineAsm::ConstraintInfo &CI = CInfos[i];
for (unsigned j = 0, ee = CI.Codes.size(); j != ee; ++j) {
TargetLowering::ConstraintType CType = TLI->getConstraintType(CI.Codes[j]);
if (CType == TargetLowering::C_Memory)
return true;
}
}
return false;
}
/// OptimizeInlineAsmInst - If there are any memory operands, use
/// OptimizeLoadStoreInt to sink their address computing into the block when
/// possible / profitable.
@ -963,7 +980,8 @@ bool CodeGenPrepare::OptimizeInlineAsmInst(Instruction *I, CallSite CS,
}
// Compute the constraint code and ConstraintType to use.
TLI->ComputeConstraintToUse(OpInfo, SDValue());
bool hasMemory = hasInlineAsmMemConstraint(ConstraintInfos, TLI);
TLI->ComputeConstraintToUse(OpInfo, SDValue(), hasMemory);
if (OpInfo.ConstraintType == TargetLowering::C_Memory &&
OpInfo.isIndirect) {
@ -1132,4 +1150,3 @@ bool CodeGenPrepare::OptimizeBlock(BasicBlock &BB) {
return MadeChange;
}