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Use a SmallVector instead of std::vector for ResOperands.

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There's almost always a small number of instruction operands, so
use a SmallVector and save on heap allocations.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@155143 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Jim Grosbach 2012-04-19 17:52:34 +00:00
parent 8caecdea56
commit b423d18a00
1 changed files with 2 additions and 2 deletions
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4
utils/TableGen/AsmMatcherEmitter.cpp
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@ -385,7 +385,7 @@ struct MatchableInfo {
/// ResOperands - This is the operand list that should be built for the result
/// MCInst.
std::vector<ResOperand> ResOperands;
SmallVector<ResOperand, 8> ResOperands;
/// AsmString - The assembly string for this instruction (with variants
/// removed), e.g. "movsx $src, $dst".
@ -399,7 +399,7 @@ struct MatchableInfo {
/// annotated with a class and where in the OperandList they were defined.
/// This directly corresponds to the tokenized AsmString after the mnemonic is
/// removed.
SmallVector<AsmOperand, 4> AsmOperands;
SmallVector<AsmOperand, 8> AsmOperands;
/// Predicates - The required subtarget features to match this instruction.
SmallVector<SubtargetFeatureInfo*, 4> RequiredFeatures;