Commit Graph

138787 Commits

Author SHA1 Message Date
Eric Christopher c8a310edc1 Refactor out the abbreviation handling into a separate class that
controls each of the abbreviation sets (only a single one at the
moment) and computes offsets separately as well for each set
of DIEs.

No real function change, ordering of abbreviations for the skeleton
CU changed but only because we're computing in a separate order. Fix
the testcase not to care.

llvm-svn: 169793
2012-12-10 23:34:43 +00:00
Enrico Granata e6a6d9ae07 <rdar://problem/12709976>
Adding a summary for NSError

llvm-svn: 169792
2012-12-10 23:30:25 +00:00
Evan Cheng 79e2ca90bc Some enhancements for memcpy / memset inline expansion.
1. Teach it to use overlapping unaligned load / store to copy / set the trailing
   bytes. e.g. On 86, use two pairs of movups / movaps for 17 - 31 byte copies.
2. Use f64 for memcpy / memset on targets where i64 is not legal but f64 is. e.g.
   x86 and ARM.
3. When memcpy from a constant string, do *not* replace the load with a constant
   if it's not possible to materialize an integer immediate with a single
   instruction (required a new target hook: TLI.isIntImmLegal()).
4. Use unaligned load / stores more aggressively if target hooks indicates they
   are "fast".
5. Update ARM target hooks to use unaligned load / stores. e.g. vld1.8 / vst1.8.
   Also increase the threshold to something reasonable (8 for memset, 4 pairs
   for memcpy).

This significantly improves Dhrystone, up to 50% on ARM iOS devices.

rdar://12760078

llvm-svn: 169791
2012-12-10 23:21:26 +00:00
Arnold Schwaighofer edd62b14e5 Optimistically analyse Phi cycles
Analyse Phis under the starting assumption that they are NoAlias. Recursively
look at their inputs.
If they MayAlias/MustAlias there must be an input that makes them so.

Addresses bug 14351.

llvm-svn: 169788
2012-12-10 23:02:41 +00:00
Han Ming Ong 717c97e884 <rdar://problem/12850287>
When there is XPC connection error, we will report it now.

llvm-svn: 169787
2012-12-10 23:02:33 +00:00
Lang Hames 517fc8b264 Defer call to InitSections until after MCContext has been initialized. If
InitSections is called before the MCContext is initialized it could cause
duplicate temporary symbols to be emitted later (after context initialization
resets the temporary label counter).

llvm-svn: 169785
2012-12-10 22:49:11 +00:00
Anshuman Dasgupta 3923e286cd Fix PR14568: Avoid the DFA packetizer from making an invalid read
beyond array bounds.

No test case since I cannot reproduce an ICE with this bug. According
to Carlos -- the bug reporter -- a segfault occurs only when LLVM is
compiled with a specific version of GCC.

llvm-svn: 169783
2012-12-10 22:45:57 +00:00
Greg Clayton 3b188b1752 <rdar://problem/11844604>
When displaying function.name-with-args format will now print "varname=<unavailable>" instead of omitting argument names and values when there is an error reading the value.

llvm-svn: 169781
2012-12-10 22:26:34 +00:00
Eric Christopher 0aa4a670ad Rearrange vars and make comments more obvious.
llvm-svn: 169780
2012-12-10 22:25:41 +00:00
Eric Christopher 81d091eed9 Remove blank line at top of file.
llvm-svn: 169779
2012-12-10 22:25:38 +00:00
Bill Wendling 740629e299 Remove until I can fix this.
llvm-svn: 169778
2012-12-10 22:10:53 +00:00
Eric Christopher 200dd760fa Fix a coding style nit.
llvm-svn: 169776
2012-12-10 22:00:20 +00:00
Bill Wendling 5897974488 Add support to Darwin for the -export_dynamic' flag to the linker.
llvm-svn: 169775
2012-12-10 21:48:41 +00:00
Nadav Rotem 36cdd82627 Enable the loop vectorizer only on O2 and above. (Still disabled by default)
llvm-svn: 169774
2012-12-10 21:45:01 +00:00
Tom Stellard 30e2aa5015 LegalizeDAG: Allow type promotion of scalar loads
llvm-svn: 169773
2012-12-10 21:41:58 +00:00
Tom Stellard b785bd776c LegalizeDAG: Allow type promotion for scalar stores
llvm-svn: 169772
2012-12-10 21:41:54 +00:00
Nadav Rotem 07df5ac1a1 Split the LoopVectorizer into H and CPP.
llvm-svn: 169771
2012-12-10 21:39:02 +00:00
Bill Wendling 4a8fc8f271 Revert r169656.
The linker will call `lto_codegen_add_must_preserve_symbol' on all globals that
should be kept around. The linker will pretend that a dylib is being created.
<rdar://problem/12528059>

llvm-svn: 169770
2012-12-10 21:33:45 +00:00
Bill Wendling dcb992d474 Use correct flags for this test.
llvm-svn: 169768
2012-12-10 21:15:22 +00:00
Daniel Malea 48b917bceb Enable RTTI for liblldbCore.a when GCC is the compiler
- gcc does not like -fno-rtti mixed with dynamic_cast<> (in cxa_demangle.cpp)

llvm-svn: 169767
2012-12-10 21:05:57 +00:00
Eli Bendersky 7352e4ffcb Add a test for explicitly exercising the mc-relax-all flag.
llvm-svn: 169764
2012-12-10 20:36:01 +00:00
Chad Rosier 99bde87178 Fixup test case from r169755. These are driver options, not frontend options.
Also, add the -S option.

llvm-svn: 169763
2012-12-10 20:16:17 +00:00
Eli Bendersky 4c7296fd1a Cleanup formatting, comments and naming.
llvm-svn: 169762
2012-12-10 20:13:43 +00:00
Argyrios Kyrtzidis 0d355df239 Return true from HeaderSearch::isFileMultipleIncludeGuarded if the file
was #import'ed.

llvm-svn: 169761
2012-12-10 20:08:37 +00:00
Akira Hatanaka 5d6faed1f0 [mips] Set HWEncoding field of registers. Use delete function
getMipsRegisterNumbering and use MCRegisterInfo::getEncodingValue instead.

llvm-svn: 169760
2012-12-10 20:04:40 +00:00
Enrico Granata ecbabe6d66 <rdar://problem/12848118>
Making MightHaveChildren() always return true regardless for our own data formatters
This is meant to optimize performance for common most-often-not-empty container classes

llvm-svn: 169759
2012-12-10 19:55:53 +00:00
Eric Christopher cdf218d606 Use the somewhat semantic term "split dwarf" it more matches what's
going on and makes a lot of the terminology in comments make more sense.

llvm-svn: 169758
2012-12-10 19:51:21 +00:00
Eric Christopher 8afd7b6066 Delete the FissionCU.
llvm-svn: 169757
2012-12-10 19:51:18 +00:00
Eric Christopher d79f5480ac Reorder fission variables.
llvm-svn: 169756
2012-12-10 19:51:13 +00:00
Bill Wendling 9a12912c9a Specify if `-mno-red-zone' was used when creating the GCOV instrucmentation pass.
This prevents the functions generated by that pass from using the red zone.
<rdar://problem/12843084>

llvm-svn: 169755
2012-12-10 19:47:53 +00:00
Bill Wendling 74f334e476 Don't use a red zone for code coverage if the user specified `-mno-red-zone'.
The `-mno-red-zone' flag wasn't being propagated to the functions that code
coverage generates. This allowed some of them to use the red zone when that
wasn't allowed.
<rdar://problem/12843084>

llvm-svn: 169754
2012-12-10 19:46:49 +00:00
Greg Clayton c5e2085629 <rdar://problem/12827031>
Fix the OptionValueFileSpec option value to correctly get the file path when trailing spaces are on the path. The "settings set" command uses the OptionValueFileSpec class to set file paths and if extra spaces are at the end it will include those in the paths. Now we chop up the value send to to OptionValueFileSpec::SetValueFromCString(...) function with "lldb_private::Args" and give an appropriate error if more than one path is used. It also allows for quotes to be used when specifying the path.

llvm-svn: 169753
2012-12-10 19:43:43 +00:00
Nadav Rotem 7b5b55c195 Add support for reverse induction variables. For example:
while (i--)
 sum+=A[i];

llvm-svn: 169752
2012-12-10 19:25:06 +00:00
Enrico Granata 37c3e9104c <rdar://problem/12817233>
Change the wording of NSNumber summary from absurd value to unexpected value when a tagged pointer shows up that does not match our knowledge of the internals

llvm-svn: 169751
2012-12-10 19:23:00 +00:00
Greg Clayton bc41bf70bd Make sure that the lldb globals:
lldb.target
    lldb.process
    lldb.thread
    lldb.frame

are initialized to at least contain empty lldb classes in case some python gets imported that uses them.

llvm-svn: 169750
2012-12-10 19:18:23 +00:00
Jim Grosbach f7cbcf2648 CMake: Don't run 'git svn' if there is no .git/svn directory.
If the local checkout does not have 'git svn' references set up, don't try
to use 'git svn' for version information.

llvm-svn: 169749
2012-12-10 19:03:37 +00:00
Eli Bendersky c01322ee90 This patch adds statistics for other non-DWARF fragments emitted by
the assembler. This is useful in order to know how the numbers add up,
since in particular the Align fragments account for a non-trivial
portion of the emitted fragments (especially on -O0 which sets
relax-all).

llvm-svn: 169747
2012-12-10 18:59:39 +00:00
Daniel Jasper a4396865d0 Addi formatting tests for pointer template parameters.
Fix spacing before ",".

llvm-svn: 169746
2012-12-10 18:59:13 +00:00
Hal Finkel 66859ae0f6 Use GetUnderlyingObjects in misched
misched used GetUnderlyingObject in order to break false load/store
dependencies, and the -enable-aa-sched-mi feature similarly relied on
GetUnderlyingObject in order to ensure it is safe to use the aliasing analysis.
Unfortunately, GetUnderlyingObject does not recurse through phi nodes, and so
(especially due to LSR) all of these mechanisms failed for
induction-variable-dependent loads and stores inside loops.

This change replaces uses of GetUnderlyingObject with GetUnderlyingObjects
(which will recurse through phi and select instructions) in misched.

Andy reviewed, tested and simplified this patch; Thanks!

llvm-svn: 169744
2012-12-10 18:49:16 +00:00
Michael Ilseman 43e17ad1d0 Remove unneeded typedef and volatile
llvm-svn: 169743
2012-12-10 18:48:08 +00:00
Sean Silva aab278fbba Fix funky copy-pasted grammatical error.
PR14343

llvm-svn: 169742
2012-12-10 18:37:26 +00:00
Chandler Carruth 867c7bff9a Revert "Make '-mtune=x86_64' assume fast unaligned memory accesses."
Accidental commit... git svn betrayed me. Sorry for the noise.

llvm-svn: 169741
2012-12-10 18:23:52 +00:00
Chandler Carruth 7eaa45c738 Make '-mtune=x86_64' assume fast unaligned memory accesses.
Summary:
Not all chips targeted by x86_64 have this feature, but a dramatically
increasing number do. Specifying a chip-specific tuning parameter will
continue to turn the feature on or off as appropriate for that
particular chip, but the generic flag should try to achieve the best
performance on the most widely available hardware. Today, the number of
chips with fast UA access dwarfs those without in the x86-64 space.

Note that this also brings LLVM's code generation for this '-march' flag
more in line with that of modern GCCs.

CC: llvm-commits

Differential Revision: http://llvm-reviews.chandlerc.com/D195

llvm-svn: 169740
2012-12-10 18:22:42 +00:00
Chandler Carruth 17f25c4e0d Fix a typo in my previous commit -- bloomfield is 0x1A not 0x2A.
Thanks to the PaX folks for noticing in review! We need some tests here,
any sugestions welcome...

llvm-svn: 169739
2012-12-10 18:22:40 +00:00
Alexander Kornienko 2ca766f32a Clang-format: error recovery for access specifiers
Reviewers: klimek

Reviewed By: klimek

CC: cfe-commits

Differential Revision: http://llvm-reviews.chandlerc.com/D198

llvm-svn: 169738
2012-12-10 16:34:48 +00:00
Manuel Klimek dd1ff5ece0 Clarifying comments for the MatchFinder and matchesNames matcher.
llvm-svn: 169737
2012-12-10 16:13:06 +00:00
Alexander Potapenko af5a108ea8 [ASan] Typo fix in memcpy() and memmove() interceptors: ASAN_WRITE_RANGE and ASAN_READ_RANGE were swapped.
This has been spotted by Anna Zaks (ganna@apple.com)

llvm-svn: 169736
2012-12-10 16:02:13 +00:00
Kostya Serebryany 13bdbe698e [asan] move FakeStack into a separate file
llvm-svn: 169734
2012-12-10 14:19:15 +00:00
Kostya Serebryany 14282a91d5 [asan] introduce asan_allocator2.cc, which will have the replacement for asan allocator (now, just a bit of boilerplate)
llvm-svn: 169733
2012-12-10 13:52:55 +00:00
Alexander Potapenko 1746f555ee Add a libsanitizer API __sanitizer_sandbox_on_notify(void* reserved), which should be used by
the client programs to notify the tools that sandboxing is about to be turned on.

llvm-svn: 169732
2012-12-10 13:10:40 +00:00