[cfe-commits] r104194 - in /cfe/trunk: include/clang/AST/DeclTemplate.h lib/AST/DeclTemplate.cpp
Chris Lattner
sabre at nondot.org
Wed May 19 17:25:36 PDT 2010
Author: lattner
Date: Wed May 19 19:25:36 2010
New Revision: 104194
URL: http://llvm.org/viewvc/llvm-project?rev=104194&view=rev
Log:
switch TemplateArgumentListBuilder to hold its flat argument list in a smallvector
instead of new[]'d. This greatly reduces the number of new[]'s, and guess what,
they were all leaked.
This adds a fixme in this hunk:
unsigned NumPackArgs = NumFlatArgs - PackBeginIndex;
+ // FIXME: NumPackArgs shouldn't be negative here???
if (NumPackArgs)
- PackArgs = &FlatArgs[PackBeginIndex];
+ PackArgs = FlatArgs.data()+PackBeginIndex;
where test/SemaTemplate/variadic-class-template-2.cpp is accessing the vector
out of range and NumPackArgs is negative. I assume variadic template args are
completely hosed.
Modified:
cfe/trunk/include/clang/AST/DeclTemplate.h
cfe/trunk/lib/AST/DeclTemplate.cpp
Modified: cfe/trunk/include/clang/AST/DeclTemplate.h
URL: http://llvm.org/viewvc/llvm-project/cfe/trunk/include/clang/AST/DeclTemplate.h?rev=104194&r1=104193&r2=104194&view=diff
==============================================================================
--- cfe/trunk/include/clang/AST/DeclTemplate.h (original)
+++ cfe/trunk/include/clang/AST/DeclTemplate.h Wed May 19 19:25:36 2010
@@ -112,7 +112,7 @@
unsigned MaxStructuredArgs;
unsigned NumStructuredArgs;
- TemplateArgument *FlatArgs;
+ llvm::SmallVector<TemplateArgument, 4> FlatArgs;
unsigned MaxFlatArgs;
unsigned NumFlatArgs;
@@ -127,16 +127,12 @@
MaxFlatArgs(std::max(MaxStructuredArgs, NumTemplateArgs)), NumFlatArgs(0),
AddingToPack(false), PackBeginIndex(0) { }
- void Append(const TemplateArgument& Arg);
+ void Append(const TemplateArgument &Arg);
void BeginPack();
void EndPack();
- unsigned flatSize() const {
- return NumFlatArgs;
- }
- const TemplateArgument *getFlatArguments() const {
- return FlatArgs;
- }
+ unsigned flatSize() const { return FlatArgs.size(); }
+ const TemplateArgument *getFlatArguments() const { return FlatArgs.data(); }
unsigned structuredSize() const {
// If we don't have any structured args, just reuse the flat size.
Modified: cfe/trunk/lib/AST/DeclTemplate.cpp
URL: http://llvm.org/viewvc/llvm-project/cfe/trunk/lib/AST/DeclTemplate.cpp?rev=104194&r1=104193&r2=104194&view=diff
==============================================================================
--- cfe/trunk/lib/AST/DeclTemplate.cpp (original)
+++ cfe/trunk/lib/AST/DeclTemplate.cpp Wed May 19 19:25:36 2010
@@ -303,22 +303,14 @@
// TemplateArgumentListBuilder Implementation
//===----------------------------------------------------------------------===//
-void TemplateArgumentListBuilder::Append(const TemplateArgument& Arg) {
- switch (Arg.getKind()) {
- default: break;
- case TemplateArgument::Type:
- assert(Arg.getAsType().isCanonical() && "Type must be canonical!");
- break;
- }
-
- assert(NumFlatArgs < MaxFlatArgs && "Argument list builder is full!");
+void TemplateArgumentListBuilder::Append(const TemplateArgument &Arg) {
+ assert((Arg.getKind() != TemplateArgument::Type ||
+ Arg.getAsType().isCanonical()) && "Type must be canonical!");
+ assert(FlatArgs.size() < MaxFlatArgs && "Argument list builder is full!");
assert(!StructuredArgs &&
"Can't append arguments when an argument pack has been added!");
- if (!FlatArgs)
- FlatArgs = new TemplateArgument[MaxFlatArgs];
-
- FlatArgs[NumFlatArgs++] = Arg;
+ FlatArgs.push_back(Arg);
}
void TemplateArgumentListBuilder::BeginPack() {
@@ -326,7 +318,7 @@
assert(!StructuredArgs && "Argument list already contains a pack!");
AddingToPack = true;
- PackBeginIndex = NumFlatArgs;
+ PackBeginIndex = FlatArgs.size();
}
void TemplateArgumentListBuilder::EndPack() {
@@ -346,8 +338,9 @@
// Next, set the pack.
TemplateArgument *PackArgs = 0;
unsigned NumPackArgs = NumFlatArgs - PackBeginIndex;
+ // FIXME: NumPackArgs shouldn't be negative here???
if (NumPackArgs)
- PackArgs = &FlatArgs[PackBeginIndex];
+ PackArgs = FlatArgs.data()+PackBeginIndex;
StructuredArgs[NumStructuredArgs++].setArgumentPack(PackArgs, NumPackArgs,
/*CopyArgs=*/false);
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