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Added skeleton for inline asm multiple alternative constraint support.

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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@113766 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
John Thompson
2010-09-13 18:15:37 +00:00
parent c32a2260a6
commit eac6e1d0c7
9 changed files with 419 additions and 103 deletions
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26
lib/Transforms/Utils/AddrModeMatcher.cpp
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@@ -21,6 +21,7 @@
#include "llvm/Support/GetElementPtrTypeIterator.h"
#include "llvm/Support/PatternMatch.h"
#include "llvm/Support/raw_ostream.h"
#include "llvm/Support/CallSite.h"
using namespace llvm;
using namespace llvm::PatternMatch;
@@ -379,27 +380,10 @@ bool AddressingModeMatcher::MatchAddr(Value *Addr, unsigned Depth) {
/// return false.
static bool IsOperandAMemoryOperand(CallInst *CI, InlineAsm *IA, Value *OpVal,
const TargetLowering &TLI) {
std::vector<InlineAsm::ConstraintInfo>
Constraints = IA->ParseConstraints();
unsigned ArgNo = 0; // The argument of the CallInst.
for (unsigned i = 0, e = Constraints.size(); i != e; ++i) {
TargetLowering::AsmOperandInfo OpInfo(Constraints[i]);
// Compute the value type for each operand.
switch (OpInfo.Type) {
case InlineAsm::isOutput:
if (OpInfo.isIndirect)
OpInfo.CallOperandVal = CI->getArgOperand(ArgNo++);
break;
case InlineAsm::isInput:
OpInfo.CallOperandVal = CI->getArgOperand(ArgNo++);
break;
case InlineAsm::isClobber:
// Nothing to do.
break;
}
std::vector<TargetLowering::AsmOperandInfo> TargetConstraints = TLI.ParseConstraints(ImmutableCallSite(CI));
for (unsigned i = 0, e = TargetConstraints.size(); i != e; ++i) {
TargetLowering::AsmOperandInfo &OpInfo = TargetConstraints[i];
// Compute the constraint code and ConstraintType to use.
TLI.ComputeConstraintToUse(OpInfo, SDValue());