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rotate CallInst operands, i.e. move callee to the back

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of the operand array

the motivation for this patch are laid out in my mail to llvm-commits:
more efficient access to operands and callee, faster callgraph-construction,
smaller compiler binary


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@101364 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Gabor Greif
2010-04-15 10:49:53 +00:00
parent e6987587d6
commit 165dac08d1
43 changed files with 578 additions and 587 deletions
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lib/Transforms/Scalar/DeadStoreElimination.cpp
+6 -6
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@@ -123,14 +123,14 @@ static Value *getPointerOperand(Instruction *I) {
if (StoreInst *SI = dyn_cast<StoreInst>(I))
return SI->getPointerOperand();
if (MemIntrinsic *MI = dyn_cast<MemIntrinsic>(I))
return MI->getOperand(1);
return MI->getOperand(0);
switch (cast<IntrinsicInst>(I)->getIntrinsicID()) {
default: assert(false && "Unexpected intrinsic!");
case Intrinsic::init_trampoline:
return I->getOperand(1);
return I->getOperand(0);
case Intrinsic::lifetime_end:
return I->getOperand(2);
return I->getOperand(1);
}
}
@@ -152,7 +152,7 @@ static unsigned getStoreSize(Instruction *I, const TargetData *TD) {
case Intrinsic::init_trampoline:
return -1u;
case Intrinsic::lifetime_end:
Len = I->getOperand(1);
Len = I->getOperand(0);
break;
}
}
@@ -287,7 +287,7 @@ bool DSE::runOnBasicBlock(BasicBlock &BB) {
/// handleFreeWithNonTrivialDependency - Handle frees of entire structures whose
/// dependency is a store to a field of that structure.
bool DSE::handleFreeWithNonTrivialDependency(Instruction *F, MemDepResult Dep) {
bool DSE::handleFreeWithNonTrivialDependency(/*FIXME: Call*/Instruction *F, MemDepResult Dep) {
AliasAnalysis &AA = getAnalysis<AliasAnalysis>();
Instruction *Dependency = Dep.getInst();
@@ -297,7 +297,7 @@ bool DSE::handleFreeWithNonTrivialDependency(Instruction *F, MemDepResult Dep) {
Value *DepPointer = getPointerOperand(Dependency)->getUnderlyingObject();
// Check for aliasing.
if (AA.alias(F->getOperand(1), 1, DepPointer, 1) !=
if (AA.alias(F->getOperand(0), 1, DepPointer, 1) !=
AliasAnalysis::MustAlias)
return false;