This comes into play with patchpoint, which can fold multiple
operands. Since the patchpoint is already treated as a call, the
machine mem operands won't affect anything, and there's nothing to
test. But we still want to do the right thing here to be sure that our
MIs obey the rules.
llvm-svn: 194750
trivial in C++03, thus making it trivial in both C++03 and C++11.
This patch allows one to opt-in/out of this decision with a macro. You can
choose to have the pair copy constructor always be trivial, or always be
non-trivial. The flag controlling this is now _LIBCPP_TRIVIAL_PAIR_COPY_CTOR.
The client can define this flag to 1, and the pair copy constructor will be
trivial (when possible of course), or to 0, and the pair copy constructor will
be nontrivial.
Default settings for this flag are set in <__config> (as usual). With this
commit the default is _LIBCPP_TRIVIAL_PAIR_COPY_CTOR=1 for all platforms
except __APPLE__, which defaults to _LIBCPP_TRIVIAL_PAIR_COPY_CTOR=0.
llvm-svn: 194742
template, that member has a dependent type (even if we can see the definition
of the member of the primary template), because the array size could change in
a member specialization.
Patch by Karthik Bhat!
llvm-svn: 194740
This patch tests introduces a proper codegen test in place of the
"codegen no longer crashes" test introduced in r193664. The test is also
moved from layout to CodeGenCXX.
Differential Revision: http://llvm-reviews.chandlerc.com/D2174
llvm-svn: 194739
Summary:
Some machine-type-neutral object files containing only undefined symbols
actually do exist in the Windows standard library. Need to recognize them
as COFF files.
Reviewers: Bigcheese
CC: llvm-commits
Differential Revision: http://llvm-reviews.chandlerc.com/D2164
llvm-svn: 194734
This options accepts a path to a directory, collects the filenames of the files
it contains, and the migrator will only modify files with the same filename.
llvm-svn: 194710
This is implemented in a way that the current static analyzer
architecture allows, in the future we might want to revisit this.
With this change static analyzer checks are available from clang-tidy
by specifying -checks=clang-analyzer-<name>.
This change also fixes the use of the compilation database to allow
clang-tidy to be used like any other clang tool.
llvm-svn: 194707
In ELF and COFF an alias is just another offset in a section. There is no way
to represent an alias to something in another file.
In MachO, the spec has the N_INDR type which should allow for exactly that, but
is not currently implemented. Given that it is specified but not implemented,
we error in codegen to avoid miscompiling but don't reject aliases to
declarations in the verifier to leave the option open of implementing it.
In the past we have used alias to declarations as a way of implementing
weakref, which is why it exists in some old tests which this patch updates.
llvm-svn: 194705
Indirect call wrapping helps MSanDR (dynamic instrumentation companion tool
for MSan) to catch all cases where execution leaves a compiler-instrumented
module by allowing the tool to rewrite targets of indirect calls.
This change is an optimization that skips wrapping for calls when target is
inside the current module. This relies on the linker providing symbols at the
begin and end of the module code (or code + data, does not really matter).
Gold linker provides such symbols by default. GNU (BFD) linker needs a link
flag: -Wl,--defsym=__executable_start=0.
More info:
https://code.google.com/p/memory-sanitizer/wiki/MSanDR#Native_exec
llvm-svn: 194697
Andrew Trick