that bridging between the two is free. Saves ~4k of code size,
although I don't see any measurable performance difference
(unfortunately).
llvm-svn: 156187
getTypeSourceInfo() without checking for NULL.
FieldDecls may have NULL TypeSourceInfo, and in
fact some FieldDecls generated by Clang -- and
all FieldDecls generated by LLDB -- have no
TypeSourceInfo.
This patch makes IsTailPaddedMemberArray check
for NULL.
llvm-svn: 156186
off PartialDiagnostic. PartialDiagnostic is rather heavyweight for
something that is in the critical path and is rarely used. So, switch
over to an abstract-class-based callback mechanism that delays most of
the work until a diagnostic is actually produced. Good for ~11k code
size reduction in the compiler and 1% speedup in -fsyntax-only on the
code in <rdar://problem/11004361>.
llvm-svn: 156176
Teach ASTContext about WIntType, and have it taken from TargetInfo like WCharType. Should fix test/Sema/format-strings.c for ARM, with the exception of one subtest which will fail if wint_t and wchar_t are the same size and wint_t is signed, wchar_t is unsigned.
There'll be a followup commit to fix that.
Reviewed by Chandler and Hans at http://llvm.org/reviews/r/8
llvm-svn: 156165
It reduces the amount of emitted debug information:
1) DIEs in .debug_info have types DW_TAG_compile_unit, DW_TAG_subprogram,
DW_TAG_inlined_subroutine (for opt builds) and DW_TAG_lexical_block only.
2) .debug_str contains only function names.
3) No debug data for types/namespaces/variables is emitted.
4) The data in .debug_line is enough to produce valid stack traces with
function names and line numbers.
Reviewed by Eric Christopher.
llvm-svn: 156160
minimal disruption on its clients.
Unlike the previous data-recursive scheme, Traverse*Stmt methods are
always getting called. The base methods of RecursiveASTVisitor will enqueue
the sub-statements instead of calling TraverseStmt on them.
Clients that override a Traverse*Stmt method and call TraverseStmt will
still function as function-recursive traversal; if a client wants to
enqueue a sub-statement in its override method it can do it like this:
[inside the override method]
StmtQueueAction StmtQueue(*this);
StmtQueue.queue(Stmt->getSubStmt());
Should address rdar://11179167.
llvm-svn: 156141
of templates by using the newly introduce FoldingSetVector. This
preserves insertion order for all iteration of specializations.
I've also included a somewhat terrifying testcase that rapidly builds up
a large number of functions. This is enough that any system with ASLR
will have non-deterministic debug information generated for the test
case without the fix here as the debug information is generated in part
by walking these specializations.
llvm-svn: 156133
validate that we didn't override the contents of any of such files.
If this is detected, emit a diagnostic error and recover gracefully
by using the contents of the original file that the PCH was built from.
Part of rdar://11305263
llvm-svn: 156107
performing the search for overridden methods. We very rarely see the
same container twice, and in those rare cases we still have the
fallback of the second SmallPtrSet to eliminate duplicates. Good for
~1.5% -fsyntax-only speedup on the code in <rdar://problem/11004361>.
llvm-svn: 156103
Some of the NSAssert macros in OS X 10.7 are implemented in a way that
adds extra arguments that trigger the -Wformat-extra-args warning.
Earlier versions of clang failed to detect those -Wformat issues, but now
that clang is reporting those problems, we need to quiet them since there's
nothing to be done to fix them. <rdar://problem/11317765>
I don't know how to write a testcase for this. Suggestions welcome.
Patch by Ted Kremenek!
llvm-svn: 156092
cases in switch statements. Also add a [[clang::fallthrough]] attribute, which
can be used to suppress the warning in the case of intentional fallthrough.
Patch by Alexander Kornienko!
The handling of C++11 attribute namespaces in this patch is temporary, and will
be replaced with a cleaner mechanism in a subsequent patch.
llvm-svn: 156086
specifically checks for equality to null.
Enforcing this general practice, which keeps the analyzer less
noisy, in the CString Checker. This change suppresses "Assigned value is
garbage or undefined" warning in the added test case.
llvm-svn: 156085
Richard Smith