using OwningPtr. OwningPtr would barf when the densemap had to reallocate,
which doesn't appear to happen on the regression test suite, but obviously
happens in real life :)
llvm-svn: 148700
Normally this function should not create copies of constant strings, but it does when the default CFAllocator
is replaced (e.g. under AddressSanitizer)
This test is related to http://code.google.com/p/address-sanitizer/issues/detail?id=10
llvm-svn: 148695
This change adds an new value to the --arm-enable-ehabi option that
disables emitting unwinding descriptors. This mode gives a working
backtrace() without the (currently broken) exception support.
llvm-svn: 148686
This is for consistency, since the flag is actually under -Wswitch now, rather
than -Wswitch-enum (since it's really valuable for the former and rather
orthogonal to the latter)
llvm-svn: 148680
Clang previously implemented -Wswitch-enum the same as -Wswitch. This patch
corrects the behavior to match GCC's. The critical/only difference being that
-Wswitch-enum is not silenced by the presence of a default case in the switch.
llvm-svn: 148679
MSVC2010's pair class has a move assignment operator but no explicit copy
constructor, which makes it unusable without this change.
For symmetry, let move copy constructors not mark the default assignment
operator as deleted either. Both changes match cl.exe's behavior. Fixes
pr11826.
Also update the standard excerpt to point to the right paragraph.
llvm-svn: 148675
returns false in the event the computation feeding into the pointer is
unreachable, which maybe ought to be true -- but this is at least consistent
with undef->isDereferenceablePointer().) Fixes PR11825!
llvm-svn: 148671
in a subclass named DyldELFObject. This class supports rebasing the object file
it represents by re-mapping section addresses to the actual memory addresses
the object was placed in. This is required for MC-JIT implementation on ELF with
debugging support.
Patch reviewed on llvm-commits.
Developed together with Ashok Thirumurthi and Andrew Kaylor.
llvm-svn: 148653
For consistency with GCC & reasonable sanity. The FIXME suggests that the
original author was perhaps using the default check for some other purpose,
not realizing the more obvious limitation/false-negatives it creates, but this
doesn't seem to produce any regressions & fixes the included test.
llvm-svn: 148649
This matches GCC's documented (& actual) behavior. What Clang had implemented
as -Wswitch-enum was actually GCC's -Wswitch behavior. -Wswitch is on by
default (part of -Wall) and warns if a switch-over-enum, without a default
case, covers all enum values.
-Wswitch-enum, on the other hand, does not have the default clause and should
fire even in the presence of a default. This warning is off by default.
With this change the -Wswitch-enum flag is off-by-default in Clang but has no
functionality at the moment. I'll add that in a future commit.
llvm-svn: 148648
Unfortunately I don't think there's a fix for this that will work upstream and
also satisfy Clang's -Wunreachable-code, which is a pity. But I'll give it some
more thought -perhaps there's some way out.
llvm-svn: 148645
Chris Lattner