heuristics to determine when it's useful to desugar a type for display
to the user. Introduce two C++-specific heuristics:
- For a qualified type (like "foo::bar"), only produce a new
desugred type if desugaring the qualified type ("bar", in this
case) produces something interesting. For example, if "foo::bar"
refers to a class named "bar", don't desugar. However, if
"foo::bar" refers to a typedef of something else, desugar to that
something else. This gives some useful desugaring such as
"foo::bar (aka 'int')".
- Don't desugar class template specialization types like
"basic_string<char>" down to their underlying "class
basic_string<char, char_traits<char>, allocator<char>>, etc.";
it's better just to leave such types alone.
Update diagnostics.html with some discussion and examples of type
preservation in C++, showing qualified names and class template
specialization types.
llvm-svn: 68207
- Small structures are returned in a register if:
1. They fit nicely in a register.
2. All fields fit nicely in a register.
(more or less)
- We now pass the first 5000 ABITests if unions are disabled.
- <rdar://problem/6497882> [irgen] x86-32 ABI compatibility with
small structs
llvm-svn: 68197
element structures", which have different ABI rules.
- Current return-arguments-32 status is: 1 out of 1000 failures (-7)
- Also, vectors inside "single element structs" require special
handling.
llvm-svn: 68196
types. It is no longer needed now that the code generator
re-lays-out interfaces if they are defines after being laid out
from a forward decl.
llvm-svn: 68194
instead of a FullSourceLoc. This resulted in a bunch of small edits in various
clients.
- Updated BugReporter to include an alternate PathDiagnostic generation
algorithm for PathDiagnosticClients desiring more control-flow pieces.
llvm-svn: 68193
- <rdar://problem/6741594> [pth] don't abuse -x to drive pth
generation
- Simpler, and fixes PR3915.
Cleanup test cases for PTH:
- Update to use -emit-pth
- Removed PTH test of carbon.c and cocoa.mm; these didn't actually
verify anything, and since PTH is token based the extra coverage
(over cocoa.m) isn't particularly helpful.
- Split PTH tests in cocoa.m to cocoa-pth.m, solely to increase
available parallelism when running tests.
Ted, could you update the PTH test cases (include-pth.c and
cocoa-pth.m) to have some sort of positive check that the PTH is
getting used? "# of PTH cache hits" or "tokens read from PTH cache"
statistics would work great. :)
llvm-svn: 68189
- <rdar://problem/6732143> Crash when generating @synchronize for
zero-cost exception
- Thanks to Anders for helping track down the problem.
llvm-svn: 68186
to generate PTH files. Soon we will remove from clang-cc the GCC-style '-x
c-header' interface for generating PTH files and push this logic to 'clang'.
llvm-svn: 68164
- Notably, set section on cfstring literal string data (for now, this
is done everywhere because it matches what we were already doing
for the CFString data itself)
- <rdar://problem/6599098> [irgen] linker requires objc string data
to go into cstring
llvm-svn: 68160
the preprocessor.
- PR3602.
- As is inherent in the blanket forwarding options, this will only
work if clang-cc happens to accept what the user passed. Users by
and large should use driver options to interact with the
preprocessor, if at all possible.
llvm-svn: 68144
Douglas Gregor