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120192 Commits

Author SHA1 Message Date
Devang Patel 7ecdc6d4f5 Refactor. 
llvm-svn: 148131
 2012-01-13 19:12:18 +00:00
Devang Patel 5d85276e30 Add new test. 
llvm-svn: 148128
 2012-01-13 18:45:31 +00:00
Pete Cooper 97aafd5f18 Fixed comment. Thanks Duncan! 
llvm-svn: 148123
 2012-01-13 17:52:01 +00:00
Douglas Gregor ccff301bfe Reinstate test case accidentally reverted by r148028 
llvm-svn: 148118
 2012-01-13 16:56:26 +00:00
Douglas Gregor 09a22f071b Don't infer a submodule for a framework's private header, at least for now. 
llvm-svn: 148117
 2012-01-13 16:54:27 +00:00
Alexander Potapenko bd53f597de This patch adds two methods, __asan_allocate_island and __asan_deallocate_island 
and switches our interceptors to using them instead of the default
vm_allocate-based approach used by mach_override_ptr.

To simplify the code, a fixed memory mapping is used for the allocation pool --
note that we can't mmap an arbitrary chunk of memory, because the shadow memory hasn't been mapped yet
(for the reasons discussed in http://code.google.com/p/address-sanitizer/issues/detail?id=24, we cannot map the shadow earlier)

The patch drops the program startup time from several second to half a second,
which speeds up the execution of ASan tests noticeably.
Because of the virtual memory size occupied by the programs it's hard
to speed up the shutdown time, which would've also helped the tests.

llvm-svn: 148116
 2012-01-13 16:13:58 +00:00
Alexander Potapenko 9301db4baa Add __asan_mach_override_ptr_custom, which allows to inject a custom memory allocator into mach_override_ptr(). 
llvm-svn: 148115
 2012-01-13 15:31:37 +00:00
Alexander Potapenko 553c208d22 This patch moves the code reading /proc/self/environ into AsanGetEnv 
in asan_linux.cc, because /proc is unavailable on Mac.
Instead the Mac version of AsanGetEnv iterates over the array of
environment variables obtained from _NSGetEnviron()

llvm-svn: 148114
 2012-01-13 12:59:48 +00:00
Evgeniy Stepanov 2ca1aa5a44 Remove --hash-style from link command on Android. 
Gnu hash is not supported by the Android loader.

llvm-svn: 148113
 2012-01-13 09:30:38 +00:00
Craig Topper e52d86a740 Convert SHUFPD with the same register for both sources to PSHUFD if it would prevent a register copy. Similar to SHUFPS, but requires the mask to be converted. 
llvm-svn: 148112
 2012-01-13 09:21:41 +00:00
Greg Clayton 13d284b284 Updated HTML with info for ${function.name-with-args} 
llvm-svn: 148111
 2012-01-13 08:41:20 +00:00
Greg Clayton 6d3dbf5161 Added a new thread and frame format that can be used to display a function 
name + arguments when the data is available. It seems to work really well, 
but some more testing is needed before we make this on by default.

The new function format name is:

 ${function.name-with-args}

To see how to use these formats see the website:

    http://lldb.llvm.org/formats.html

Here is a sample backtrace of debugging LLDB with LLDB using this new format
value:

(lldb) thread backtrace all
* thread #1: tid = 0x2203, 0x00007fff88a17bca libsystem_kernel.dylib __psynch_cvwait + 10, stop reason = signal SIGINT, name = <lldb.driver.main-thread>, queue = com.apple.main-thread
    frame #0: 0x00007fff88a17bca libsystem_kernel.dylib __psynch_cvwait + 10
    frame #1: 0x00007fff884ae274 libsystem_c.dylib _pthread_cond_wait + 840
    frame #2: 0x00000001010778ea LLDB lldb_private::Condition::Wait(this=0x0000000104846770, mutex=0x0000000104846730, abstime=0x0000000000000000, timed_out=0x00007fff5fbfdea7) + 138 at Condition.cpp:92
    frame #3: 0x0000000101244c21 LLDB lldb_private::Predicate<bool>::WaitForValueEqualTo(this=0x0000000104846728, value=true, abstime=0x0000000000000000, timed_out=0x00007fff5fbfdea7) + 209 at Predicate.h:317
    frame #4: 0x0000000100f6eeb2 LLDB lldb_private::Listener::WaitForEventsInternal(this=0x0000000104846660, timeout=0x0000000000000000, broadcaster=0x0000000000000000, broadcaster_names=0x0000000000000000, num_broadcaster_names=0x00000000, event_type_mask=0x00000000, event_sp=0x00007fff5fbfe030) + 386 at Listener.cpp:388
    frame #5: 0x0000000100f6f231 LLDB lldb_private::Listener::WaitForEvent(this=0x0000000104846660, timeout=0x0000000000000000, event_sp=0x00007fff5fbfe030) + 81 at Listener.cpp:436
    frame #6: 0x0000000100098dcd LLDB lldb::SBListener::WaitForEvent(this=0x00007fff5fbff0f0, timeout_secs=0xffffffff, event=0x00007fff5fbfe430) + 685 at SBListener.cpp:181
    frame #7: 0x000000010000628c lldb Driver::MainLoop(this=0x00007fff5fbff620) + 5244 at Driver.cpp:1325
    frame #8: 0x0000000100006ca3 lldb main(argc=1, argv=0x00007fff5fbff758, envp=0x00007fff5fbff768) + 419 at Driver.cpp:1460
    frame #9: 0x0000000100000d54 lldb start + 52

  thread #3: tid = 0x2703, 0x00007fff88a17df2 libsystem_kernel.dylib select$DARWIN_EXTSN + 10, name = <lldb.comm.debugger.input>
    frame #0: 0x00007fff88a17df2 libsystem_kernel.dylib select$DARWIN_EXTSN + 10
    frame #1: 0x0000000100f3f072 LLDB lldb_private::ConnectionFileDescriptor::BytesAvailable(this=0x000000010524d040, timeout_usec=0x004c4b40, error_ptr=0x0000000105640a18) + 722 at ConnectionFileDescriptor.cpp:542
    frame #2: 0x0000000100f3e6dd LLDB lldb_private::ConnectionFileDescriptor::Read(this=0x000000010524d040, dst=0x0000000105640a60, dst_len=1024, timeout_usec=0x004c4b40, status=0x0000000105640a14, error_ptr=0x0000000105640a18) + 301 at ConnectionFileDescriptor.cpp:273
    frame #3: 0x0000000100f3b8f7 LLDB lldb_private::Communication::ReadFromConnection(this=0x0000000104846270, dst=0x0000000105640a60, dst_len=1024, timeout_usec=0x004c4b40, status=0x0000000105640a14, error_ptr=0x0000000105640a18) + 167 at Communication.cpp:317
    frame #4: 0x0000000100f3b197 LLDB lldb_private::Communication::ReadThread(p=0x0000000104846270) + 327 at Communication.cpp:344
    frame #5: 0x0000000101078923 LLDB ThreadCreateTrampoline(arg=0x00000001045f6650) + 227 at Host.cpp:549
    frame #6: 0x00007fff884aa8bf libsystem_c.dylib _pthread_start + 335
    frame #7: 0x00007fff884adb75 libsystem_c.dylib thread_start + 13

  thread #4: tid = 0x2803, 0x00007fff88a17df2 libsystem_kernel.dylib select$DARWIN_EXTSN + 10, name = <lldb.comm.driver.editline>
    frame #0: 0x00007fff88a17df2 libsystem_kernel.dylib select$DARWIN_EXTSN + 10
    frame #1: 0x0000000100f3f072 LLDB lldb_private::ConnectionFileDescriptor::BytesAvailable(this=0x0000000105700370, timeout_usec=0x004c4b40, error_ptr=0x00000001056c3a18) + 722 at ConnectionFileDescriptor.cpp:542
    frame #2: 0x0000000100f3e6dd LLDB lldb_private::ConnectionFileDescriptor::Read(this=0x0000000105700370, dst=0x00000001056c3a60, dst_len=1024, timeout_usec=0x004c4b40, status=0x00000001056c3a14, error_ptr=0x00000001056c3a18) + 301 at ConnectionFileDescriptor.cpp:273
    frame #3: 0x0000000100f3b8f7 LLDB lldb_private::Communication::ReadFromConnection(this=0x0000000105700000, dst=0x00000001056c3a60, dst_len=1024, timeout_usec=0x004c4b40, status=0x00000001056c3a14, error_ptr=0x00000001056c3a18) + 167 at Communication.cpp:317
    frame #4: 0x0000000100f3b197 LLDB lldb_private::Communication::ReadThread(p=0x0000000105700000) + 327 at Communication.cpp:344
    frame #5: 0x0000000101078923 LLDB ThreadCreateTrampoline(arg=0x0000000105700430) + 227 at Host.cpp:549
    frame #6: 0x00007fff884aa8bf libsystem_c.dylib _pthread_start + 335
    frame #7: 0x00007fff884adb75 libsystem_c.dylib thread_start + 13

  thread #5: tid = 0x2903, 0x00007fff88a17df2 libsystem_kernel.dylib select$DARWIN_EXTSN + 10, name = <lldb.comm.driver.editline_output>
    frame #0: 0x00007fff88a17df2 libsystem_kernel.dylib select$DARWIN_EXTSN + 10
    frame #1: 0x0000000100f3f072 LLDB lldb_private::ConnectionFileDescriptor::BytesAvailable(this=0x00000001057178f0, timeout_usec=0x004c4b40, error_ptr=0x0000000105980a18) + 722 at ConnectionFileDescriptor.cpp:542
    frame #2: 0x0000000100f3e6dd LLDB lldb_private::ConnectionFileDescriptor::Read(this=0x00000001057178f0, dst=0x0000000105980a60, dst_len=1024, timeout_usec=0x004c4b40, status=0x0000000105980a14, error_ptr=0x0000000105980a18) + 301 at ConnectionFileDescriptor.cpp:273
    frame #3: 0x0000000100f3b8f7 LLDB lldb_private::Communication::ReadFromConnection(this=0x0000000105717580, dst=0x0000000105980a60, dst_len=1024, timeout_usec=0x004c4b40, status=0x0000000105980a14, error_ptr=0x0000000105980a18) + 167 at Communication.cpp:317
    frame #4: 0x0000000100f3b197 LLDB lldb_private::Communication::ReadThread(p=0x0000000105717580) + 327 at Communication.cpp:344
    frame #5: 0x0000000101078923 LLDB ThreadCreateTrampoline(arg=0x00000001057179b0) + 227 at Host.cpp:549
    frame #6: 0x00007fff884aa8bf libsystem_c.dylib _pthread_start + 335
    frame #7: 0x00007fff884adb75 libsystem_c.dylib thread_start + 13

  thread #6: tid = 0x2a03, 0x00007fff88a18af2 libsystem_kernel.dylib read + 10, name = <lldb.driver.commandline_io>
    frame #0: 0x00007fff88a18af2 libsystem_kernel.dylib read + 10
    frame #1: 0x0000000100050c3b libedit.3.dylib read_init + 247
    frame #2: 0x0000000100050e96 libedit.3.dylib el_wgetc + 155
    frame #3: 0x000000010005115d libedit.3.dylib el_wgets + 578
    frame #4: 0x000000010005debc libedit.3.dylib el_gets + 37
    frame #5: 0x000000010000d409 lldb IOChannel::LibeditGetInput(this=0x0000000105700490, new_line=0x0000000105a03db0) + 89 at IOChannel.cpp:311
    frame #6: 0x000000010000d8b6 lldb IOChannel::Run(this=0x0000000105700490) + 806 at IOChannel.cpp:391
    frame #7: 0x000000010000d57d lldb IOChannel::IOReadThread(ptr=0x0000000105700490) + 29 at IOChannel.cpp:345
    frame #8: 0x0000000101078923 LLDB ThreadCreateTrampoline(arg=0x00000001057179f0) + 227 at Host.cpp:549
    frame #9: 0x00007fff884aa8bf libsystem_c.dylib _pthread_start + 335
    frame #10: 0x00007fff884adb75 libsystem_c.dylib thread_start + 13
(lldb) 

llvm-svn: 148110
 2012-01-13 08:39:16 +00:00
Craig Topper b1c2ebf6ee use v8i32 as optimal mem type over v8f32 if AVX2 is enabled. Similar to SSE2 vs SSE1. 
llvm-svn: 148109
 2012-01-13 08:32:21 +00:00
Craig Topper cb7e13d7c0 Make X86 instruction selection use 256-bit VPXOR for build_vector of all ones if AVX2 is enabled. This gives the ExeDepsFix pass a chance to choose FP vs int as appropriate. Also use v8i32 as the type for getZeroVector if AVX2 is enabled. This is consistent with SSE2 using prefering v4i32. 
llvm-svn: 148108
 2012-01-13 08:12:35 +00:00
NAKAMURA Takumi 1b845f712a test/CodeGen/ARM/test-sharedidx.ll: Fix for -Asserts. 
llvm-svn: 148107
 2012-01-13 07:03:55 +00:00
Craig Topper 9f14d9f939 Add patterns for v16i16 and v32i8 immAllZerosV to select VPXOR to match v4i64 and v8i32. 
llvm-svn: 148106
 2012-01-13 06:59:47 +00:00
Andrew Trick e77e84e4b7 Added the MachineSchedulerPass skeleton. 
llvm-svn: 148105
 2012-01-13 06:30:30 +00:00
Andrew Trick d9accbf113 whitespace 
llvm-svn: 148104
 2012-01-13 06:30:25 +00:00
Andrew Trick 4d4fef238a wrong filename 
llvm-svn: 148103
 2012-01-13 06:30:22 +00:00
Andrew Trick b1be1aa8f8 80-col violation 
llvm-svn: 148102
 2012-01-13 06:30:19 +00:00
Craig Topper a4c5a47b97 Use 8i32 constant pool entry for converting AVX2_SETALLONES. Possibly fixes PR11750. 
llvm-svn: 148101
 2012-01-13 06:12:41 +00:00
Raghesh Aloor ea6c99c1d9 Memaccess: Removing some unwanted code 
llvm-svn: 148100
 2012-01-13 06:02:13 +00:00
Greg Clayton ae3e9927a5 Bumped Xcode project version for lldb-105 and debugserver-164. 
llvm-svn: 148098
 2012-01-13 05:54:31 +00:00
Greg Clayton d66945ae3d <rdar://problem/10688864> 
Fixed the new __apple_types to be able to accept a DW_TAG_structure_type
forward declaration and then find a DW_TAG_class_type definition, or vice
versa.

llvm-svn: 148097
 2012-01-13 05:38:24 +00:00
Craig Topper 2aa07f832e Fix typo in PerformAddCombine that caused any vector type to be checked for horizontal add/sub if AVX2 is enabled. This caused an assert to fail for non 128/256-bit vectors when done before type legalizing. Fixes PR11749. 
llvm-svn: 148096
 2012-01-13 05:04:25 +00:00
Jakob Stoklund Olesen 6f2288b67c CodeInit was replaced by StringInit. 
llvm-svn: 148095
 2012-01-13 04:57:47 +00:00
Richard Smith 7971b69f74 PR11754: Reject non-static constexpr member functions in classes with virtual 
base classes.

llvm-svn: 148094
 2012-01-13 04:54:00 +00:00
Eli Friedman 09d272d025 A base subobject type doesn't make sense for unions; don't try to compute it. Based on patch by Yin Ma. Fixes PR11751. 
llvm-svn: 148093
 2012-01-13 03:58:31 +00:00
Jakob Stoklund Olesen dd8fbf572e Delete CodeInit and CodeRecTy from TableGen. 
The code type was always identical to a string anyway. Now it is simply
a synonym. The code literal syntax [{...}] is still valid.

llvm-svn: 148092
 2012-01-13 03:38:34 +00:00
Jakob Stoklund Olesen 9d1c5eeb32 Use uniqued StringInit pointers for lookups. 
This avoids a gazillion StringMap and dynamic_cast calls, making
TableGen run 3x faster.

llvm-svn: 148091
 2012-01-13 03:16:35 +00:00
Eli Friedman c8002429e5 constexpr is allowed on static member functions of non-literal classes. Per report on cfe-dev. 
llvm-svn: 148090
 2012-01-13 02:31:53 +00:00
Eli Friedman 9a766c4043 A few minor improvements to error recovery trying to access member of a function. In particular, this restores the cool error recovery for the example from http://blog.llvm.org/2010/04/amazing-feats-of-clang-error-recovery.html , which regressed a few months back. 
llvm-svn: 148089
 2012-01-13 02:20:01 +00:00
Richard Smith 90b748e0d1 Don't crash while trying to diagnose a function declared at block scope with an 
incomplete return type.

llvm-svn: 148088
 2012-01-13 02:14:39 +00:00
Jim Ingham bc2f918200 Don't set breakpoints independently comp unit by comp unit, but look over all the file & line matches 
and only pick the "best" ones.
<rdar://problem/10685990>

llvm-svn: 148087
 2012-01-13 02:04:05 +00:00
Evan Cheng fa8326334b DAGCombine's logic for forming pre- and post- indexed loads / stores were being 
overly conservative. It was concerned about cases where it would prohibit
folding simple [r, c] addressing modes. e.g.
  ldr r0, [r2]
  ldr r1, [r2, #4]
=>
  ldr r0, [r2], #4
  ldr r1, [r2]
Change the logic to look for such cases which allows it to form indexed memory
ops more aggressively.

rdar://10674430

llvm-svn: 148086
 2012-01-13 01:37:24 +00:00
Kaelyn Uhrain e31b88833a Fix up the calls to CorrectTypo in Sema*ObjC.cpp to use callback 
objects, and add a basic CorrectionCandidateCallback template class
to simplify the fixups.

llvm-svn: 148085
 2012-01-13 01:32:50 +00:00
Douglas Gregor 04ea962144 Revert previous commit. Something has gone wonky with my local configuration 
llvm-svn: 148084
 2012-01-13 01:24:11 +00:00
Howard Hinnant 50f7eeec9d Enclosed is a stress test for dynamic_cast. It stresses both libc++abi, and clang itself. It creates a ridiculously large class hierarchy using variadic templates. You can specify both the width and depth of the class hierarchy. And you can specify whether the cast is to the actual run time type, or to an intermediate layer in the class. About 1/3 of the time I compile this, it crashes the compiler. There seems to be an uninitialized area of memory, and I'm probably blowing past an assumption on class hierarchy size within clang (and understandably so). I can get it work most of the time with a class hierarchy width of 20 and a depth of 7. I'm making timings with both -O3 and -Os, using both cast to root and cast to intermediate, on both libc++abi, and gcc's dynamic_cast. I've put the results in a comment/table at the bottom of the test. 
llvm-svn: 148083
 2012-01-13 01:22:31 +00:00
Douglas Gregor da4fda7364 When inferring a module map for a framework, add the 'private' 
requirement to headers under PrivateHeaders. We don't want to build
them as part of the module (yet).

llvm-svn: 148082
 2012-01-13 01:20:43 +00:00
Anna Zaks cb6d4ee793 [analyzer] Unwrap the pointers when ignoring the const cast. 
radar://10686991

llvm-svn: 148081
 2012-01-13 00:56:55 +00:00
Anna Zaks a31f6b9559 [analyzer] Taint: when looking up a binding, provide the type. 
llvm-svn: 148080
 2012-01-13 00:56:51 +00:00
Anna Zaks 6228130099 [analyzer] RegionStoreManager::getBinding() should not crash when 
looking up value at a CodeTextRegion even when the type is not provided.

llvm-svn: 148079
 2012-01-13 00:56:48 +00:00
Anna Zaks bdf42b336d [analyzer] Fix a typo in a warning message. 
llvm-svn: 148078
 2012-01-13 00:56:44 +00:00
Bill Wendling 9c8456f7ef Fix off-by-one error. 
llvm-svn: 148077
 2012-01-13 00:41:53 +00:00
Dan Gohman 728db4997a Implement proper ObjC ARC objc_retainBlock "escape" analysis, so that 
the optimizer doesn't eliminate objc_retainBlock calls which are needed
for their side effect of copying blocks onto the heap.
This implements rdar://10361249.

llvm-svn: 148076
 2012-01-13 00:39:07 +00:00
Johnny Chen fb05d23789 Add some description for this test directory. 
llvm-svn: 148075
 2012-01-13 00:24:11 +00:00
Fariborz Jahanian 372030b2a1 objc parsing. Fixes a crash when parsing array initialization 
inside a class implementation with parse errors. // rdar://10633434

llvm-svn: 148074
 2012-01-13 00:14:12 +00:00
Johnny Chen c50af6fdcc rdar://problem/10684459 
test_move_and_then_display_source (TestSourceManager.py) never works in LLDB test suite

Forgot to svn ci the "hidden" directory. :-( 

llvm-svn: 148073
 2012-01-13 00:02:46 +00:00
Richard Smith 8d06f42448 Improve 0-argument -Wvexing-parse diagnostic by adding notes with fix-its: 
- If the declarator is at the start of a line, and the previous line contained
   another declarator and ended with a comma, then that comma was probably a
   typo for a semicolon:

   int n = 0, m = 1, l = 2, // k = 5;
   myImportantFunctionCall(); // oops!

 - If removing the parentheses would correctly initialize the object, then
   produce a note suggesting that fix.

 - Otherwise, if there is a simple initializer we can suggest which performs
   value-initialization, then provide a note suggesting a correction to that
   initializer.

Sema::Declarator now tracks the location of the comma prior to the declarator in
the declaration, if there is one, to facilitate providing the note. The code to
determine an appropriate initializer from the -Wuninitialized warning has been
factored out to allow use in both that and -Wvexing-parse.

llvm-svn: 148072
 2012-01-12 23:53:29 +00:00
Johnny Chen 7840c81df2 Modify a couple of Makefiles to use clang instead of gcc, since gcc is being deprecated. 
llvm-svn: 148071
 2012-01-12 23:50:28 +00:00