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cache result of operator*

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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@107980 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Gabor Greif 2010-07-09 16:08:33 +00:00
parent c654d1b8c1
commit 03f09a3e32
1 changed files with 8 additions and 4 deletions

12
lib/CodeGen/SelectionDAG/FunctionLoweringInfo.cpp

@ -46,9 +46,11 @@ static bool isUsedOutsideOfDefiningBlock(const Instruction *I) {
if (isa<PHINode>(I)) return true;
const BasicBlock *BB = I->getParent();
for (Value::const_use_iterator UI = I->use_begin(), E = I->use_end();
UI != E; ++UI)
if (cast<Instruction>(*UI)->getParent() != BB || isa<PHINode>(*UI))
UI != E; ++UI) {
const User *U = *UI;
if (cast<Instruction>(U)->getParent() != BB || isa<PHINode>(U))
return true;
}
return false;
}
@ -63,9 +65,11 @@ static bool isOnlyUsedInEntryBlock(const Argument *A, bool EnableFastISel) {
const BasicBlock *Entry = A->getParent()->begin();
for (Value::const_use_iterator UI = A->use_begin(), E = A->use_end();
UI != E; ++UI)
if (cast<Instruction>(*UI)->getParent() != Entry || isa<SwitchInst>(*UI))
UI != E; ++UI) {
const User *U = *UI;
if (cast<Instruction>(U)->getParent() != Entry || isa<SwitchInst>(U))
return false; // Use not in entry block.
}
return true;
}