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Use ArrayRef instead of 'const std::vector' to pass around the list of basic blocks to extract.

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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@140168 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Bill Wendling 2011-09-20 18:42:07 +00:00
parent 16c19a155c
commit 51bae90289
1 changed files with 10 additions and 8 deletions
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18
lib/Transforms/Utils/CodeExtractor.cpp
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@ -55,9 +55,9 @@ namespace {
CodeExtractor(DominatorTree* dt = 0, bool AggArgs = false)
: DT(dt), AggregateArgs(AggArgs||AggregateArgsOpt), NumExitBlocks(~0U) {}
Function *ExtractCodeRegion(const std::vector<BasicBlock*> &code);
Function *ExtractCodeRegion(ArrayRef<BasicBlock*> code);
bool isEligible(const std::vector<BasicBlock*> &code);
bool isEligible(ArrayRef<BasicBlock*> code);
private:
/// definedInRegion - Return true if the specified value is defined in the
@ -654,7 +654,7 @@ void CodeExtractor::moveCodeToFunction(Function *newFunction) {
/// computed result back into memory.
///
Function *CodeExtractor::
ExtractCodeRegion(const std::vector<BasicBlock*> &code) {
ExtractCodeRegion(ArrayRef<BasicBlock*> code) {
if (!isEligible(code))
return 0;
@ -754,9 +754,13 @@ ExtractCodeRegion(const std::vector<BasicBlock*> &code) {
return newFunction;
}
bool CodeExtractor::isEligible(const std::vector<BasicBlock*> &code) {
bool CodeExtractor::isEligible(ArrayRef<BasicBlock*> code) {
// Deny a single basic block that's a landing pad block.
if (code.size() == 1 && code[0]->isLandingPad())
return false;
// Deny code region if it contains allocas or vastarts.
for (std::vector<BasicBlock*>::const_iterator BB = code.begin(), e=code.end();
for (ArrayRef<BasicBlock*>::iterator BB = code.begin(), e=code.end();
BB != e; ++BB)
for (BasicBlock::const_iterator I = (*BB)->begin(), Ie = (*BB)->end();
I != Ie; ++I)
@ -788,7 +792,5 @@ Function* llvm::ExtractLoop(DominatorTree &DT, Loop *L, bool AggregateArgs) {
/// ExtractBasicBlock - Slurp a basic block into a brand new function.
///
Function* llvm::ExtractBasicBlock(BasicBlock *BB, bool AggregateArgs) {
std::vector<BasicBlock*> Blocks;
Blocks.push_back(BB);
return CodeExtractor(0, AggregateArgs).ExtractCodeRegion(Blocks);
return CodeExtractor(0, AggregateArgs).ExtractCodeRegion(BB);
}