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[turbofan] Cache the Branch operator(s).

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TEST=unittests
R=dcarney@chromium.org

Review URL: https://codereview.chromium.org/771153002

Cr-Commit-Position: refs/heads/master@{#25610}
This commit is contained in:
Benedikt Meurer 2014-12-02 13:41:31 +01:00
parent a94a612220
commit 0a020550c6
1 changed files with 23 additions and 2 deletions
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25
src/compiler/common-operator.cc
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@ -124,6 +124,19 @@ struct CommonOperatorGlobalCache FINAL {
Name##Operator k##Name##Operator;
CACHED_OP_LIST(CACHED)
#undef CACHED
template <BranchHint kBranchHint>
struct BranchOperator FINAL : public Operator1<BranchHint> {
BranchOperator()
: Operator1<BranchHint>( // --
IrOpcode::kBranch, Operator::kFoldable, // opcode
"Branch", // name
1, 0, 1, 0, 0, 2, // counts
kBranchHint) {} // parameter
};
BranchOperator<BranchHint::kNone> kBranchNoneOperator;
BranchOperator<BranchHint::kTrue> kBranchTrueOperator;
BranchOperator<BranchHint::kFalse> kBranchFalseOperator;
};
@ -145,8 +158,16 @@ CACHED_OP_LIST(CACHED)
const Operator* CommonOperatorBuilder::Branch(BranchHint hint) {
return new (zone()) Operator1<BranchHint>(
IrOpcode::kBranch, Operator::kFoldable, "Branch", 1, 0, 1, 0, 0, 2, hint);
switch (hint) {
case BranchHint::kNone:
return &cache_.kBranchNoneOperator;
case BranchHint::kTrue:
return &cache_.kBranchTrueOperator;
case BranchHint::kFalse:
return &cache_.kBranchFalseOperator;
}
UNREACHABLE();
return nullptr;
}