From b5d8416b90995f0afe340c03eb694763cb18e3ce Mon Sep 17 00:00:00 2001 From: Chris Lattner Date: Thu, 19 Feb 2009 06:25:12 +0000 Subject: don't new[] an empty array when an AttributeList has zero expression arguments. This eliminates 2579 1-byte mallocs when parsing Cocoa.h. llvm-svn: 65022 --- clang/lib/Parse/AttributeList.cpp | 14 +++++++++----- 1 file changed, 9 insertions(+), 5 deletions(-) (limited to 'clang/lib/Parse/AttributeList.cpp') diff --git a/clang/lib/Parse/AttributeList.cpp b/clang/lib/Parse/AttributeList.cpp index 3d9d2b45f78..6b58a001bca 100644 --- a/clang/lib/Parse/AttributeList.cpp +++ b/clang/lib/Parse/AttributeList.cpp @@ -16,13 +16,17 @@ using namespace clang; AttributeList::AttributeList(IdentifierInfo *aName, SourceLocation aLoc, IdentifierInfo *pName, SourceLocation pLoc, - Action::ExprTy **elist, unsigned numargs, + Action::ExprTy **ExprList, unsigned numArgs, AttributeList *n) : AttrName(aName), AttrLoc(aLoc), ParmName(pName), ParmLoc(pLoc), - NumArgs(numargs), Next(n) { - Args = new Action::ExprTy*[numargs]; - for (unsigned i = 0; i != numargs; ++i) - Args[i] = elist[i]; + NumArgs(numArgs), Next(n) { + + if (numArgs == 0) + Args = 0; + else { + Args = new Action::ExprTy*[numArgs]; + memcpy(Args, ExprList, numArgs*sizeof(Args[0])); + } } AttributeList::~AttributeList() { -- cgit v1.2.3