From: Jim Grosbach <grosbach@apple.com>
Date: Thu, 19 Apr 2012 17:52:34 +0000 (+0000)
Subject: Use a SmallVector instead of std::vector for ResOperands.
X-Git-Url: http://demsky.eecs.uci.edu/git/?a=commitdiff_plain;h=b423d18a00eed4968d6df7415449259b09b7d67e;p=oota-llvm.git

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

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
---

diff --git a/utils/TableGen/AsmMatcherEmitter.cpp b/utils/TableGen/AsmMatcherEmitter.cpp
index 676211d3125..1b7f67e83a4 100644
--- a/utils/TableGen/AsmMatcherEmitter.cpp
+++ b/utils/TableGen/AsmMatcherEmitter.cpp
@@ -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;