This results in a 1.7% improvement for "Cocoa.h". If we can figure out how to return a "Decl *", rather than a Sema::LookupResult(), we will likely bump the speedup from 1.7%->2.5%. I verified this, however couldn't get it to work without breaking a fair number of C++ test cases. Will discuss with Doug offline.
llvm-svn: 63320
represents an implicit value-initialization of a subobject of a
particular type. This replaces the (ab)use of CXXZeroValueInitExpr
within initializer lists for the "holes" that occur due to the use of
C99 designated initializers.
The new test case is currently XFAIL'd, because CodeGen's
ConstExprEmitter (in lib/CodeGen/CGExprConstant.cpp) needs to be
taught to value-initialize when it sees ImplicitValueInitExprs.
llvm-svn: 63317
eightbyte boundaries.
- Getting harder to test now that we handle cases gcc & llvm-gcc get
wrong ( { _Complex char; _Complex int; } is a good example). :)
llvm-svn: 63305
- This is my best initial guess at what the "spec" means, although it is not
particularly clear on a number of points. Will refine through testing.
llvm-svn: 63292
- Lift (int,float) -> (int,float) conversion into separate routines.
- Fix handling of, e.g., char -> _Complex int, which was producing a
_Complex char value instead.
llvm-svn: 63278
llvm[0]: Compiling SemaInit.cpp for Debug build
SemaInit.cpp:171: error: ‘InitListChecker’ has not been declared
SemaInit.cpp:171: error: ISO C++ forbids declaration of ‘InitListChecker’ with no type
SemaInit.cpp: In function ‘int InitListChecker(clang::Sema*, clang::InitListExpr*, clang::QualType&)’:
SemaInit.cpp:172: error: ‘hadError’ was not declared in this scope
SemaInit.cpp:173: error: ‘SemaRef’ was not declared in this scope
SemaInit.cpp:177: error: ‘FullyStructuredList’ was not declared in this scope
llvm-svn: 63270
evaluation (alternate part of real/imag init was being set to 3 not 0
because the wrong APFloat constructor was being called).
- Test cases coming once some more support is in.
llvm-svn: 63264
The previous interface was very confusing. This is much more explicit, which will be easier to understand/optimize/convert.
The plan is to eventually deprecate both of these functions. For now, I'm focused on performance.
llvm-svn: 63256
initializers.
- We now initialize unions properly when a member other than the
first is named by a designated initializer.
- We now provide proper semantic analysis and code generation for
GNU array-range designators *except* that side effects will occur
more than once. We warn about this.
llvm-svn: 63253
The approach I've taken in this patch is relatively straightforward,
although the code itself is non-trivial. Essentially, as we process
an initializer list we build up a fully-explicit representation of the
initializer list, where each of the subobject initializations occurs
in order. Designators serve to "fill in" subobject initializations in
a non-linear way. The fully-explicit representation makes initializer
lists (both with and without designators) easy to grok for codegen and
later semantic analyses. We keep the syntactic form of the initializer
list linked into the AST for those clients interested in exactly what
the user wrote.
Known limitations:
- Designating a member of a union that isn't the first member may
result in bogus initialization (we warn about this)
- GNU array-range designators are not supported (we warn about this)
llvm-svn: 63242
Fix a stupid mistake in UnwrapSimilarPointers that made any two member pointers compatible as long as the pointee was the same.
Make a few style corrections as suggested by Chris.
llvm-svn: 63215
Even though Sema::LookupDecl() is deprecated, it's still used all over the place. Simplifying the interface will make it easier to understand/optimize/convert.
llvm-svn: 63210
Even though Sema::LookupDecl() is deprecated, it's still used all over the place. Simplifying the interface will make it easier to understand/optimize/convert.
llvm-svn: 63208
Also changed FunctionTypeProto to be allocated with 8-byte alignment (noticed by Doug). I couldn't think of any reason to allocate on 16-byte boundaries. If anyone remembers why we were doing this, let me know!
llvm-svn: 63137
This will simplify runtime replacement of ASTContext's allocator. Keeping the allocator private (and removing getAllocator() entirely) is also goodness.
llvm-svn: 63135
.def file for each library. This means that adding a diagnostic
to sema doesn't require all the other libraries to be rebuilt.
Patch by Anders Johnsen!
llvm-svn: 63111
as reported to the user and as manipulated by #line. This is what __FILE__,
__INCLUDE_LEVEL__, diagnostics and other things should follow (but not
dependency generation!).
This patch also includes several cleanups along the way:
- SourceLocation now has a dump method, and several other places
that did similar things now use it.
- I cleaned up some code in AnalysisConsumer, but it should probably be
simplified further now that NamedDecl is better.
- TextDiagnosticPrinter is now simplified and cleaned up a bit.
This patch is a prerequisite for #line, but does not actually provide
any #line functionality.
llvm-svn: 63098
address space we used up. Some interesting data:
For c99-intconst-1.c:
6912762 SLocEntry's allocated, 25592386B of Sloc address space used.
For cocoa.h:
26469 SLocEntry's allocated, 10278752B of Sloc address space used.
For carbon.h:
27364 SLocEntry's allocated, 12398141B of Sloc address space used.
Clearly 2G of sloc address space should be enough for anyone?!
llvm-svn: 63093
- Add the distinction between the 'bug type' and the 'bug description'
HTMLDiagnostics:
- Output the bug type field as HTML comments
scan-build:
- Use the bug type field instead of the bug description for the HTML table.
- Radar filing now automatically picks up the bug description in the title (addresses <rdar://problem/6265970>)
llvm-svn: 63084
Performance impact for -fsyntax-only on Cocoa.h (with Cocoa.h in the PTH file):
- PTH generation time improves by 5%
- PTH reading improves by 0.3%.
llvm-svn: 63072
- When it's safe, ActionResult uses the low bit of the pointer for
the "invalid" flag rather than a separate "bool" value. This keeps
GCC from generating some truly awful code, for a > 3x speedup in the
result-passing microbenchmark.
- When DISABLE_SMART_POINTERS is defined, store an ActionResult
within ASTOwningResult rather than an ASTOwningPtr. Brings the
performance benefits of the above to smart pointers with
DISABLE_SMART_POINTERS defined.
Sadly, these micro-benchmark performance improvements don't seem to
make much of a difference on Cocoa.h right now. However, they're
harmless and might help with future optimizations.
llvm-svn: 63061
instantiation history in an effort to speed up c99-intconst-1.c.
Now that multiple nested instantiations are allowed, we just
make them and don't pay the cost of lookups. With the other
changes that went in before this, reverting this is actually
a speedup for c99-intconst-1.c, speeding it up from 1.96s to 1.80s,
and preserves much better loc info.
llvm-svn: 63036
Token now has a class of kinds for "literals", which include
numeric constants, strings, etc. These tokens can optionally have
a pointer to the start of the token in the lexer buffer. This
makes it faster to get spelling and do other gymnastics, because we
don't have to go through source locations.
This change is performance neutral, but will make other changes
more feasible down the road.
llvm-svn: 63028
the content cache pointer. This saves 105876 bytes on
cocoa.h because it shrinks the SLocEntry union, which
we have a big array of. It would be nice to use
PointerIntPair here, but we can't because it is in a
union.
llvm-svn: 63004
Douglas Gregor