Commit Graph

147051 Commits

Author SHA1 Message Date
Kostya Serebryany 13b07733b1 [asan] fill first 4K of malloc-ed memory with garbage, implement flags max_malloc_fill_size and malloc_fill_byte
llvm-svn: 178757
2013-04-04 11:17:14 +00:00
Evgeniy Stepanov 24b2169e07 [sanitizer] Android lacks ucontext_t definition.
llvm-svn: 178756
2013-04-04 09:21:48 +00:00
Evgeniy Stepanov 7b0e132551 [sanitizer] Use ucontext_t instead of "struct ucontext".
Fixes Mac build.

llvm-svn: 178755
2013-04-04 09:03:56 +00:00
Evgeniy Stepanov 1f8b3538b4 [msan] Unpoison siginfo_t and ucontext_t in signal handlers.
Add wrappers for all user signal handlers to unpoison the handler's arguments.

llvm-svn: 178754
2013-04-04 08:22:52 +00:00
Alexey Samsonov c01f4f0d4d Propagate path to ASan/MSan symbolizer into test environment to produce useful reports on errors.
llvm-svn: 178750
2013-04-04 07:41:20 +00:00
Alexey Samsonov e2c772a1b0 Propagate path to ASan/MSan symbolizer into test environment to produce useful reports on errors.
llvm-svn: 178749
2013-04-04 07:41:00 +00:00
Kostya Serebryany c3525ce6ac [sanitizer] while doing fast unwinding make sure that the frame pointer is aligned; fix lint
llvm-svn: 178747
2013-04-04 06:52:40 +00:00
Eric Christopher 006208cfad Plumb through the -fsplit-stack option using the existing backend
support.

Caveat: Other than the existing segmented stacks support, no
claims are made of this working.

llvm-svn: 178744
2013-04-04 06:29:47 +00:00
Ted Kremenek 51b7ed4de5 Revert r177948. We decided that we do not want ObjC property redeclarations to inherit "deprecated".
llvm-svn: 178743
2013-04-04 05:29:15 +00:00
Nadav Rotem 319758aa7c Document the return value of SmallSet insert.
llvm-svn: 178742
2013-04-04 04:54:21 +00:00
Rafael Espindola 7b51ae8e0e Add hasExternalLinkageUncached back with the test that Richard provided, but
keep the call at the current location.

llvm-svn: 178741
2013-04-04 04:40:17 +00:00
Richard Smith 5dacbec4aa Don't build this test with modules for now, it's causing buildbot failures.
llvm-svn: 178740
2013-04-04 03:48:33 +00:00
Rafael Espindola 4dc336b20f Avoid computing the linkage instead of avoiding caching it.
This mostly reverts 178733, but keeps the tests.

I don't claim to understand how hidden sub modules work or when we need to see
them (is that documented?), but this has the same semantics and avoids adding
hasExternalLinkageUncached which has the same foot gun potential as the old
hasExternalLinkage.

Last but not least, not computing linkage when it is not needed is more
efficient.

llvm-svn: 178739
2013-04-04 03:27:32 +00:00
Jason Molenda 14aef12e24 Change EnumerateDirectory from using readdir() to using readdir_r()
so it can be re-entered while iterating over a directory safely.

llvm-svn: 178738
2013-04-04 03:19:27 +00:00
Jakob Stoklund Olesen 8cfaffaade Add SPARC v9 support for select on 64-bit compares.
This requires v9 cmov instructions using the %xcc flags instead of the
%icc flags.

Still missing:
- Select floats on %xcc flags.
- Select i64 on %fcc flags.

llvm-svn: 178737
2013-04-04 03:08:00 +00:00
Richard Smith 584f7dcc0e Add tests that build modules for our builtin headers, and fix two buglets exposed by doing so.
llvm-svn: 178736
2013-04-04 02:55:24 +00:00
Rafael Espindola 869fe0448b Fix linkage related crash.
This test was exactly the opposite of what it should be. We should check if
there old decl has linkage (where it makes sense) and if the new decl has
the extern keyword.

llvm-svn: 178735
2013-04-04 02:47:57 +00:00
Jim Ingham fce1dad042 The SBValue impl class's GetSP can now fetch the dynamic type or the synthetic
children - which it may have to compute.  Thus it needs to take the API lock.

<rdar://problem/13560869>

llvm-svn: 178734
2013-04-04 02:23:41 +00:00
Richard Smith 86c0d06194 Fix 41 of the 61 tests which fail with modules enabled: we were computing and
caching the linkage for a declaration before we set up its redeclaration chain,
when determining whether a declaration could be a redeclaration of something
from an unimported submodule. We actually want to look at the declaration as if
it were not a redeclaration here, so compute the linkage but don't cache it.

llvm-svn: 178733
2013-04-04 01:51:11 +00:00
Jim Ingham 3495127549 Change the default for "use-fast-stepping" to on.
<rdar://problem/11319574>

llvm-svn: 178732
2013-04-04 01:38:54 +00:00
John McCall e48f389ce6 Be sure to check ARC conventions on the implicit method declarations
of a property just in case the property's getter happens to be +1.
We won't synthesize a getter for such a property, but we will allow
the user to define a +1 method for it.
rdar://13115896

llvm-svn: 178731
2013-04-04 01:38:37 +00:00
Rafael Espindola 5a2af525ab Explicitly add -Wl,--export-all-symbols on mingw/cygwin.
Looks like cmake on windows is not expanding ENABLE_EXPORTS to
-Wl,--export-all-symbols on mingw or cygwin, so add this back.

llvm-svn: 178730
2013-04-04 01:19:55 +00:00
Enrico Granata e98184322a <rdar://problem/13563697>
The __NSArrayI synthetic children provider was running expressions to generate children, which is inefficient for large amounts of data
Reimplementing to use a faster algorithm

llvm-svn: 178729
2013-04-04 01:12:12 +00:00
Greg Clayton 24daef515a <rdar://problem/13198919>
Try and reap process when sending the "k" packet to avoid a race condition. We now wait for at most 1 second to reap the child process that we are killing.

llvm-svn: 178726
2013-04-04 01:01:35 +00:00
Rafael Espindola 76f92277ca Don't export symbols in every binary on linux.
On freebsd this makes sure that symbols are exported on the binaries that need
them. The net result is that we should get symbols in the binaries that need
them on every platform.

On linux x86-64 this reduces the size of the bin directory from 262MB to 250MB.

Patch by Stephen Checkoway.

llvm-svn: 178725
2013-04-04 01:01:32 +00:00
Rafael Espindola 5515ff804f cmake: mark clang as needing exported symbol.
This is a nop right now, but committing this first avoids a temporary breakage
when the llvm files change to not default to exporting symbols.

llvm-svn: 178723
2013-04-04 00:58:40 +00:00
Manman Ren 5a15c9ed9f Debug Info: according to DWARF 2, FORM_ref_addr the same size as an address on
the target system.

It was hard-coded to 4 bytes before. I can't get llvm to generate a
ref_addr on a reasonably sized testing case.

rdar://problem/13559431

llvm-svn: 178722
2013-04-04 00:22:54 +00:00
John McCall 770a4c1a37 Protect the values of array and dictionary literals from the
ARC optimizer while they're held in local unsafe buffers.

Based on a patch by Jesse Rusak!

rdar://13573224

llvm-svn: 178721
2013-04-04 00:20:38 +00:00
Nico Weber 69a7914fec Make the ObjC attributes diagnostics a bit more informative.
llvm-svn: 178720
2013-04-04 00:15:10 +00:00
Greg Clayton 9ff5aae5b0 <rdar://problem/12897145>
Changes to lldb made the following fail when it used to work:

% cd /tmp
% lldb ls
error: unable to find executable for '/tmp/ls'

Resolving an executable with no relative path was broken, now its fixed.

llvm-svn: 178719
2013-04-04 00:15:09 +00:00
Greg Clayton d6e6ddd636 Revert code I didn't mean to check in.
llvm-svn: 178718
2013-04-04 00:07:32 +00:00
Greg Clayton abcbfe5369 More support for version 4 of DWARF.
llvm-svn: 178717
2013-04-04 00:00:36 +00:00
Tanya Lattner daa74b93c9 Update OpenCL comments to mention spec section and version.
llvm-svn: 178716
2013-04-03 23:55:58 +00:00
Michael Gottesman 21a4ed3227 Refactored out the helper method FindPredecessorAutoreleaseWithSafePath from ObjCARCOpt::OptimizeReturns.
Now ObjCARCOpt::OptimizeReturns is easy to read and reason about.

llvm-svn: 178715
2013-04-03 23:39:14 +00:00
Michael Gottesman 6908db148b Refactored out the helper function FindPredecessorRetainWithSafePath from ObjCARCOpt::OptimizeReturns.
llvm-svn: 178714
2013-04-03 23:16:05 +00:00
Evan Cheng 51a7a9d712 Make it possible to include llvm-c without including C++ headers. Patch by Filip Pizlo.
llvm-svn: 178713
2013-04-03 23:12:39 +00:00
Michael Gottesman c2d5bf5c53 Small cleanups.
Cleaned up trailing whitespace and added extra slashes in front of a
function level comment so that it follow the convention of having 3
slashes.

llvm-svn: 178712
2013-04-03 23:07:45 +00:00
Douglas Gregor 151976694a <rdar://problem/13560075> Teach name lookup for builtin names to find hidden declarations.
Normal name lookup ignores any hidden declarations. When name lookup
for builtin declarations fails, we just synthesize a new
declaration at the point of use. With modules, this could lead to
multiple declarations of the same builtin, if one came from a (hidden)
submodule that was later made visible. Teach name lookup to always
find builtin names, so we don't create these redundant declarations in
the first place.

llvm-svn: 178711
2013-04-03 23:06:26 +00:00
Michael Gottesman 54dc7fdefb Refactored out a part of ObjCARCOpt::OptimizeReturns into its own method HasSafePathToPredecessorCall.
llvm-svn: 178710
2013-04-03 23:04:28 +00:00
Michael Gottesman 0a1748bb8c Removed an old comment.
llvm-svn: 178709
2013-04-03 23:04:24 +00:00
Greg Clayton 7b619fc159 Playing around with making performance test cases run from within python.
llvm-svn: 178708
2013-04-03 22:59:27 +00:00
Richard Smith e8a9d61f47 Revert accidental commit.
llvm-svn: 178707
2013-04-03 22:50:34 +00:00
Richard Smith c0fbba7d8a Pare back r164351 somewhat. The problem that change was addressing was that we
don't serialize a lookup map for the translation unit outside C++ mode, so we
can't tell when lookup within the TU needs to look within modules. Only apply
the fix outside C++ mode, and only to the translation unit.

llvm-svn: 178706
2013-04-03 22:49:41 +00:00
Michael Gottesman 43e7e00a68 Clean up arc annotations by moving the top/bottom BB annotations into conditional macros that no-op in Release mode instead of #ifdef sections of the code.
This is to follow the example of the DEBUG macro.

llvm-svn: 178705
2013-04-03 22:41:59 +00:00
Greg Clayton de3d01e2c4 <rdar://problem/12789467>
Fixed an attach case for ARM that was imporperly detecting an application bundle when there wasn't one.

llvm-svn: 178704
2013-04-03 21:49:00 +00:00
Arnold Schwaighofer e9b5016411 X86 cost model: Vector shifts are expensive in most cases
The default logic does not correctly identify costs of casts because they are
marked as custom on x86.

For some cases, where the shift amount is a scalar we would be able to generate
better code. Unfortunately, when this is the case the value (the splat) will get
hoisted out of the loop, thereby making it invisible to ISel.

radar://13130673
radar://13537826

llvm-svn: 178703
2013-04-03 21:46:05 +00:00
Greg Clayton bc43cab51d <rdar://problem/13384801>
Make lldb_private::RegularExpression thread safe everywhere. This was done by removing the m_matches array from the lldb_private::RegularExpression class and putting it into the new lldb_private::RegularExpression::Match class. When executing a regular expression you now have the option to create a lldb_private::RegularExpression::Match object and pass a pointer in if you want to get parenthesized matching. If you don't want any matching, you pass in NULL. The lldb_private::RegularExpression::Match object is initialized with the number of matches you desire. Any matching strings are now extracted from the lldb_private::RegularExpression::Match objects. This makes the regular expression objects thread safe and as a result many more regex objects were turned into static objects that end up using a local lldb_private::RegularExpression::Match object when executing.

llvm-svn: 178702
2013-04-03 21:37:16 +00:00
Anna Zaks d3254b4462 [analyzer] Allow tracknullOrUndef look through the ternary operator even when condition is unknown
Improvement of r178684 and r178685.

Jordan has pointed out that I should not rely on the value of the condition to know which expression branch
has been taken. It will not work in cases the branch condition is an unknown value (ex: we do not track the constraints for floats).
The better way of doing this would be to find out if the current node is the right or left successor of the node
that has the ternary operator as a terminator (which is how this is done in other places, like ConditionBRVisitor).

llvm-svn: 178701
2013-04-03 21:34:12 +00:00
Rafael Espindola f24933f65e Fix build.
This should fix the build breakage caused by the api change in 178663.

llvm-svn: 178700
2013-04-03 21:29:21 +00:00
Argyrios Kyrtzidis f0eaa64c98 [preprocessor] Minor optimization following r178671.
Don't bother looking for parameter index of 'B' token if 'A' is not a parameter.

llvm-svn: 178699
2013-04-03 21:29:07 +00:00