#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;
const TargetData *TD = TLI.getTargetData();
gep_type_iterator GTI = gep_type_begin(AddrInst);
for (unsigned i = 1, e = AddrInst->getNumOperands(); i != e; ++i, ++GTI) {
- if (const StructType *STy = dyn_cast<StructType>(*GTI)) {
+ if (StructType *STy = dyn_cast<StructType>(*GTI)) {
const StructLayout *SL = TD->getStructLayout(STy);
unsigned Idx =
cast<ConstantInt>(AddrInst->getOperand(i))->getZExtValue();
/// return false.
static bool IsOperandAMemoryOperand(CallInst *CI, InlineAsm *IA, Value *OpVal,
const TargetLowering &TLI) {
- std::vector<InlineAsm::ConstraintInfo>
- Constraints = IA->ParseConstraints();
-
- unsigned ArgNo = 1; // ArgNo - The operand 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->getOperand(ArgNo++);
- break;
- case InlineAsm::isInput:
- OpInfo.CallOperandVal = CI->getOperand(ArgNo++);
- break;
- case InlineAsm::isClobber:
- // Nothing to do.
- break;
- }
+ TargetLowering::AsmOperandInfoVector 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(),
- OpInfo.ConstraintType == TargetLowering::C_Memory);
-
+ TLI.ComputeConstraintToUse(OpInfo, SDValue());
+
// If this asm operand is our Value*, and if it isn't an indirect memory
// operand, we can't fold it!
if (OpInfo.CallOperandVal == OpVal &&
!OpInfo.isIndirect))
return false;
}
-
+
return true;
}
// Loop over all the uses, recursively processing them.
for (Value::use_iterator UI = I->use_begin(), E = I->use_end();
UI != E; ++UI) {
- if (LoadInst *LI = dyn_cast<LoadInst>(*UI)) {
+ User *U = *UI;
+
+ if (LoadInst *LI = dyn_cast<LoadInst>(U)) {
MemoryUses.push_back(std::make_pair(LI, UI.getOperandNo()));
continue;
}
- if (StoreInst *SI = dyn_cast<StoreInst>(*UI)) {
+ if (StoreInst *SI = dyn_cast<StoreInst>(U)) {
unsigned opNo = UI.getOperandNo();
if (opNo == 0) return true; // Storing addr, not into addr.
MemoryUses.push_back(std::make_pair(SI, opNo));
continue;
}
- if (CallInst *CI = dyn_cast<CallInst>(*UI)) {
+ if (CallInst *CI = dyn_cast<CallInst>(U)) {
InlineAsm *IA = dyn_cast<InlineAsm>(CI->getCalledValue());
- if (IA == 0) return true;
+ if (!IA) return true;
// If this is a memory operand, we're cool, otherwise bail out.
if (!IsOperandAMemoryOperand(CI, IA, I, TLI))
continue;
}
- if (FindAllMemoryUses(cast<Instruction>(*UI), MemoryUses, ConsideredInsts,
+ if (FindAllMemoryUses(cast<Instruction>(U), MemoryUses, ConsideredInsts,
TLI))
return true;
}
// Check to see if this value is already used in the memory instruction's
// block. If so, it's already live into the block at the very least, so we
// can reasonably fold it.
- BasicBlock *MemBB = MemoryInst->getParent();
- for (Value::use_iterator UI = Val->use_begin(), E = Val->use_end();
- UI != E; ++UI)
- // We know that uses of arguments and instructions have to be instructions.
- if (cast<Instruction>(*UI)->getParent() == MemBB)
- return true;
-
- return false;
+ return Val->isUsedInBasicBlock(MemoryInst->getParent());
}
Value *Address = User->getOperand(OpNo);
if (!Address->getType()->isPointerTy())
return false;
- const Type *AddressAccessTy =
+ Type *AddressAccessTy =
cast<PointerType>(Address->getType())->getElementType();
// Do a match against the root of this address, ignoring profitability. This
MemoryInst, Result);
Matcher.IgnoreProfitability = true;
bool Success = Matcher.MatchAddr(Address, 0);
- Success = Success; assert(Success && "Couldn't select *anything*?");
+ (void)Success; assert(Success && "Couldn't select *anything*?");
// If the match didn't cover I, then it won't be shared by it.
if (std::find(MatchedAddrModeInsts.begin(), MatchedAddrModeInsts.end(),