David Majnemer [Mon, 13 Oct 2014 21:48:30 +0000 (21:48 +0000)]
InstCombine: Don't miscompile (x lshr C1) udiv C2
We have a transform that changes:
(x lshr C1) udiv C2
into:
x udiv (C2 << C1)
However, it is unsafe to do so if C2 << C1 discards any of C2's bits.
This fixes PR21255.
llvm-svn: 219634
Reed Kotler [Mon, 13 Oct 2014 21:46:41 +0000 (21:46 +0000)]
Make first of several changes to bring up to AArch64 fast-isel style
Summary:
Make Mips fast-isel track the form of AArch64 where practical.
This makes it easier for people to review the code, to borrow similar code, and to see how to eventually move a lot of this
target code for fast-isels into target independent code.
These are just cosmetic changes. Should be no functional difference.
Test Plan:
make check
test-suite for 4 flavors mips32 r1/r2 , -O0/-O2
Reviewers: dsanders
Reviewed By: dsanders
Subscribers: aemerson, llvm-commits, rfuhler
Differential Revision: http://reviews.llvm.org/D5595
llvm-svn: 219633
Filipe Cabecinhas [Mon, 13 Oct 2014 21:40:52 +0000 (21:40 +0000)]
Fix minor typos in comments.
llvm-svn: 219632
Paul Robinson [Mon, 13 Oct 2014 21:11:22 +0000 (21:11 +0000)]
Update the example of using a command-line option custom parser to
match the current implementation.
Patch by Douglas Yung!
llvm-svn: 219631
Fariborz Jahanian [Mon, 13 Oct 2014 21:07:45 +0000 (21:07 +0000)]
Objective-C [Sema]. Fixes a bug in comparing qualified
Objective-C pointer types. In this case, checker incorrectly
claims incompatible pointer types if redundant protocol conformance
is specified. rdar://
18491222
llvm-svn: 219630
Dan Albert [Mon, 13 Oct 2014 21:01:30 +0000 (21:01 +0000)]
Correctly export _Unwind_[GS]et(GR|IP) for EHABI.
These need to have normal linkage instead of being static inline as
many libraries expect to be able to declare these and have the linker
find them rather than needing to include the header.
http://mentorembedded.github.io/cxx-abi/abi-eh.html
Also clean up some warnings while I'm here.
Reviewers: jroelofs, kledzik
Subscribers: cfe-commits
Differential Revision: http://reviews.llvm.org/D5754
llvm-svn: 219629
Adrian Prantl [Mon, 13 Oct 2014 20:44:58 +0000 (20:44 +0000)]
Add an assertion about the integrity of the iterator.
Broken parent scope pointers in inlined DIVariables can cause
ensureAbstractVariableIsCreated to insert new abstract scopes, thus
invalidating the iterator in this loop and leading to hard-to-debug
crashes. Useful when manually reducing IR for testcases.
llvm-svn: 219628
Adrian Prantl [Mon, 13 Oct 2014 20:43:47 +0000 (20:43 +0000)]
constify the getters in SDNodeDbgValue.
llvm-svn: 219627
Chad Rosier [Mon, 13 Oct 2014 19:46:39 +0000 (19:46 +0000)]
Refactor debug statement and remove dead argument. NFC.
llvm-svn: 219626
Jordan Rose [Mon, 13 Oct 2014 19:38:02 +0000 (19:38 +0000)]
[analyzer] Check all 'nonnull' attributes, not just the first one.
Patch by Daniel Fahlgren!
llvm-svn: 219625
Samuel Benzaquen [Mon, 13 Oct 2014 18:17:11 +0000 (18:17 +0000)]
Fix order of evaluation bug in DynTypedMatcher::constructVariadic().
Fix order of evaluation bug in DynTypedMatcher::constructVariadic().
If it evaluates right-to-left, the vector gets moved before we read the
kind from it.
llvm-svn: 219624
Adrian Prantl [Mon, 13 Oct 2014 18:04:10 +0000 (18:04 +0000)]
cleanup comments and remove an obsolete workaround
llvm-svn: 219623
Samuel Benzaquen [Mon, 13 Oct 2014 17:38:12 +0000 (17:38 +0000)]
Fix bug in DynTypedMatcher::constructVariadic() that would cause false negatives.
Summary:
Change r219118 fixed the bug for anyOf and eachOf, but it is still
present for unless.
The variadic wrapper doesn't have enough information to know how to
restrict the type. Different operators handle restrict failures in
different ways.
Reviewers: klimek
Subscribers: klimek, cfe-commits
Differential Revision: http://reviews.llvm.org/D5731
llvm-svn: 219622
Timur Iskhodzhanov [Mon, 13 Oct 2014 17:03:13 +0000 (17:03 +0000)]
Add VS2012-generated test inputs for test/tools/llvm-readobj/codeview-linetables.test
llvm-svn: 219621
Greg Clayton [Mon, 13 Oct 2014 16:54:26 +0000 (16:54 +0000)]
Don't lock the IOHandlerList::m_mutex in Debugger::RunIOHandler(...) since if a process is resumed or halted, it will try to push/pop the process IOHandler and it will deadlock.
<rdar://problem/
18610852>
llvm-svn: 219620
Chad Rosier [Mon, 13 Oct 2014 16:45:21 +0000 (16:45 +0000)]
Relinquish ownership of MS-style inline assembly.
llvm-svn: 219619
Adrian Prantl [Mon, 13 Oct 2014 16:34:31 +0000 (16:34 +0000)]
Address review comments from Justin Bogner.
- raise without arguments is preserving the backtrace
- move the call to terminate lldb to the exit handler
llvm-svn: 219618
Filipe Cabecinhas [Mon, 13 Oct 2014 16:16:16 +0000 (16:16 +0000)]
Fix a broadcast related regression on the vector shuffle lowering.
Summary: Test by Robert Lougher!
Reviewers: chandlerc
Subscribers: llvm-commits
Differential Revision: http://reviews.llvm.org/D5745
llvm-svn: 219617
Matt Arsenault [Mon, 13 Oct 2014 15:47:59 +0000 (15:47 +0000)]
R600/SI: Minor cleanup of function
llvm-svn: 219616
Ulrich Weigand [Mon, 13 Oct 2014 13:49:39 +0000 (13:49 +0000)]
More OpenMP test case compatibility fixes
Allow "signext" in a couple of more places in recently
added test cases to fix failures on SystemZ.
llvm-svn: 219615
Johannes Doerfert [Mon, 13 Oct 2014 12:58:03 +0000 (12:58 +0000)]
[Refactor][NfC] Simplify and clean the handling of (new) access relations
This patch does not change the semantic on it's own. However, the
dependence analysis as well as dce will now use the newest available
access relation for each memory access, thus if at some point the json
importer or any other pass will run before those two and set a new
access relation the behaviour will be different. In general it is
unclear if the dependence analysis and dce should be run on the old or
new access functions anyway. If we need to access the original access
function from the outside later, we can expose the getter again.
Differential Revision: http://reviews.llvm.org/D5707
llvm-svn: 219612
Alexander Kornienko [Mon, 13 Oct 2014 12:46:22 +0000 (12:46 +0000)]
[clang-tidy] misc-braces-around-statements.ShortStatementLines option
Add option ShortStatementLines to trigger this check only if the statement spans
over at least a given number of lines.
Modifications from the original patch:
merged test/clang-tidy/misc-braces-around-statements-always.cpp into
test/clang-tidy/misc-braces-around-statements.cpp and removed unnecessary
CHECK-NOTs from the tests.
http://reviews.llvm.org/D5642
Patch by Marek Kurdej!
llvm-svn: 219611
Yuri Gorshenin [Mon, 13 Oct 2014 11:44:06 +0000 (11:44 +0000)]
[asan-asm-instrumentation] Follow-up fixes to r219602: asserts are moved into
function.
llvm-svn: 219610
Manuel Klimek [Mon, 13 Oct 2014 11:30:27 +0000 (11:30 +0000)]
Re-structure clang-rename into a library and the tool.
This allows the unit tests to link the library.
Patch by Xin Huang.
llvm-svn: 219609
Bradley Smith [Mon, 13 Oct 2014 11:18:05 +0000 (11:18 +0000)]
[AArch64] Fixup test from A53 erratum patch after buildbot failures
Don't include stdint.h directly, instead typedef int64_t which is all we need.
llvm-svn: 219608
Renato Golin [Mon, 13 Oct 2014 10:22:48 +0000 (10:22 +0000)]
Adds support for the Cortex-A17 processor to Clang
Patch by Matthew Wahab.
llvm-svn: 219607
Renato Golin [Mon, 13 Oct 2014 10:22:19 +0000 (10:22 +0000)]
Adds support for the Cortex-A17 to the ARM backend
Patch by Matthew Wahab.
llvm-svn: 219606
Daniel Sanders [Mon, 13 Oct 2014 10:18:02 +0000 (10:18 +0000)]
[mips] Mark redundant instructions with a comment in test/CodeGen/Mips/Fast-ISel/icmpa.ll.
llvm-svn: 219605
Bradley Smith [Mon, 13 Oct 2014 10:16:06 +0000 (10:16 +0000)]
[AArch64] Add workaround for Cortex-A53 erratum (835769)
Some early revisions of the Cortex-A53 have an erratum (835769) whereby it is
possible for a 64-bit multiply-accumulate instruction in AArch64 state to
generate an incorrect result. The details are quite complex and hard to
determine statically, since branches in the code may exist in some
circumstances, but all cases end with a memory (load, store, or prefetch)
instruction followed immediately by the multiply-accumulate operation.
The safest work-around for this issue is to make the compiler avoid emitting
multiply-accumulate instructions immediately after memory instructions and the
simplest way to do this is to insert a NOP.
This patch implements clang options to enable this workaround in the backend.
The work-around code generation is not enabled by default.
llvm-svn: 219604
Bradley Smith [Mon, 13 Oct 2014 10:12:35 +0000 (10:12 +0000)]
[AArch64] Add workaround for Cortex-A53 erratum (835769)
Some early revisions of the Cortex-A53 have an erratum (835769) whereby it is
possible for a 64-bit multiply-accumulate instruction in AArch64 state to
generate an incorrect result. The details are quite complex and hard to
determine statically, since branches in the code may exist in some
circumstances, but all cases end with a memory (load, store, or prefetch)
instruction followed immediately by the multiply-accumulate operation.
The safest work-around for this issue is to make the compiler avoid emitting
multiply-accumulate instructions immediately after memory instructions and the
simplest way to do this is to insert a NOP.
This patch implements such work-around in the backend, enabled via the option
-aarch64-fix-cortex-a53-835769.
The work-around code generation is not enabled by default.
llvm-svn: 219603
Yuri Gorshenin [Mon, 13 Oct 2014 09:37:47 +0000 (09:37 +0000)]
[asan-asm-instrumentation] Fixed memory references which includes %rsp as a base or an index register.
Summary: [asan-asm-instrumentation] Fixed memory references which includes %rsp as a base or an index register.
Reviewers: eugenis
Subscribers: llvm-commits
Differential Revision: http://reviews.llvm.org/D5599
llvm-svn: 219602
Alexey Bataev [Mon, 13 Oct 2014 08:51:32 +0000 (08:51 +0000)]
Fix incompatibility issue in /OpenMP/parallel_num_threads_codegen.cpp
llvm-svn: 219601
Dmitry Vyukov [Mon, 13 Oct 2014 08:46:25 +0000 (08:46 +0000)]
tsan: better reporting for virtual-call-after-free
Previously we said that it's a data race, which is confusing
if it happens in the same thread.
llvm-svn: 219600
Alexey Bataev [Mon, 13 Oct 2014 08:23:51 +0000 (08:23 +0000)]
[OPENMP] Codegen for 'num_threads' clause in 'parallel' directive.
This patch generates call to "kmpc_push_num_threads(ident_t *loc, kmp_int32 global_tid, kmp_int32 num_threads);" library function before calling "kmpc_fork_call" each time there is an associated "num_threads" clause in the "omp parallel" directive.
Differential Revision: http://reviews.llvm.org/D5145
llvm-svn: 219599
Alexey Bataev [Mon, 13 Oct 2014 06:21:04 +0000 (06:21 +0000)]
Fix test OpenMP/parallel_if_codegen.cpp.
llvm-svn: 219598
Alexey Bataev [Mon, 13 Oct 2014 06:02:40 +0000 (06:02 +0000)]
[OPENMP] Codegen for 'if' clause in 'parallel' directive.
Adds codegen for 'if' clause. Currently only for 'if' clause used with the 'parallel' directive.
If condition evaluates to true, the code executes parallel version of the code by calling __kmpc_fork_call(loc, 1, microtask, captured_struct/*context*/), where loc - debug location, 1 - number of additional parameters after "microtask" argument, microtask - is outlined finction for the code associated with the 'parallel' directive, captured_struct - list of variables captured in this outlined function.
If condition evaluates to false, the code executes serial version of the code by executing the following code:
global_thread_id.addr = alloca i32
store i32 global_thread_id, global_thread_id.addr
zero.addr = alloca i32
store i32 0, zero.addr
kmpc_serialized_parallel(loc, global_thread_id);
microtask(global_thread_id.addr, zero.addr, captured_struct/*context*/);
kmpc_end_serialized_parallel(loc, global_thread_id);
Where loc - debug location, global_thread_id - global thread id, returned by __kmpc_global_thread_num() call or passed as a first parameter in microtask() call, global_thread_id.addr - address of the variable, where stored global_thread_id value, zero.addr - implicit bound thread id (should be set to 0 for serial call), microtask() and captured_struct are the same as in parallel call.
Also this patch checks if the condition is constant and if it is constant it evaluates its value and then generates either parallel version of the code (if the condition evaluates to true), or the serial version of the code (if the condition evaluates to false).
Differential Revision: http://reviews.llvm.org/D4716
llvm-svn: 219597
NAKAMURA Takumi [Mon, 13 Oct 2014 04:32:43 +0000 (04:32 +0000)]
Unix/Signals.inc: Let findModulesAndOffsets() built conditionally regarding to (defined(HAVE_BACKTRACE) && defined(ENABLE_BACKTRACES)). [-Wunused-function]
llvm-svn: 219596
NAKAMURA Takumi [Mon, 13 Oct 2014 04:17:34 +0000 (04:17 +0000)]
Revert r219584, "[X86] Memory folding for commutative instructions."
It broke i686 selfhosting.
llvm-svn: 219595
Alexey Bataev [Mon, 13 Oct 2014 03:27:35 +0000 (03:27 +0000)]
PredefinedExpr deserialization test in dependent context.
For commit r219561 - Fix deserialization of PredefinedExpr in dependent context.
llvm-svn: 219594
Richard Smith [Mon, 13 Oct 2014 00:41:03 +0000 (00:41 +0000)]
[modules] Stop excluding Support/Debug.h from the Support module. This header
has been modular since r206822, and excluding it was leading to workarounds
such as the one in r219592, which this change removes.
llvm-svn: 219593
Benjamin Kramer [Sun, 12 Oct 2014 22:49:26 +0000 (22:49 +0000)]
[Modules] Add some missing includes to make files compile stand-alone.
llvm-svn: 219592
Benjamin Kramer [Sun, 12 Oct 2014 22:49:21 +0000 (22:49 +0000)]
[Modules] Make header standalone. NFC.
llvm-svn: 219591
Tyler Nowicki [Sun, 12 Oct 2014 21:28:02 +0000 (21:28 +0000)]
Fixed a problem in r19589.
Several systems failed to compile the array allocation of the TokenArray.
llvm-svn: 219590
Tyler Nowicki [Sun, 12 Oct 2014 20:46:07 +0000 (20:46 +0000)]
Allow constant expressions in pragma loop hints.
Previously loop hints such as #pragma loop vectorize_width(#) required a constant. This patch allows a constant expression to be used as well. Such as a non-type template parameter or an expression (2 * c + 1).
Reviewed by Richard Smith
llvm-svn: 219589
Benjamin Kramer [Sun, 12 Oct 2014 17:56:40 +0000 (17:56 +0000)]
Modernize old-style static asserts. NFC.
llvm-svn: 219588
Joerg Sonnenberger [Sun, 12 Oct 2014 17:16:04 +0000 (17:16 +0000)]
Revert r219223, it creates invalid PHI nodes.
llvm-svn: 219587
Benjamin Kramer [Sun, 12 Oct 2014 15:36:31 +0000 (15:36 +0000)]
APSInt: Simplify code to reduce the number of copies. No functionality change.
llvm-svn: 219586
Benjamin Kramer [Sun, 12 Oct 2014 14:02:34 +0000 (14:02 +0000)]
InstCombine: Turn (x != 0 & x <u C) into the canonical range check form (x-1 <u C-1)
llvm-svn: 219585
Simon Pilgrim [Sun, 12 Oct 2014 10:52:55 +0000 (10:52 +0000)]
[X86] Memory folding for commutative instructions.
This patch improves support for commutative instructions in the x86 memory folding implementation by attempting to fold a commuted version of the instruction if the original folding fails - if that folding fails as well the instruction is 're-commuted' back to its original order before returning.
This mainly helps the stack inliner better fold reloads of 3 (or more) operand instructions (VEX encoded SSE etc.) but by performing this in the lowest foldMemoryOperandImpl implementation it also replaces the X86InstrInfo::optimizeLoadInstr version and is now used by FastISel too.
Differential Revision: http://reviews.llvm.org/D5701
llvm-svn: 219584
David Majnemer [Sun, 12 Oct 2014 08:34:24 +0000 (08:34 +0000)]
InstCombine: Simplify commonIDivTransforms
A helper routine, MultiplyOverflows, was a less efficient
reimplementation of APInt's smul_ov and umul_ov. While we are here,
clean up the code so it's more uniform.
No functionality change intended.
llvm-svn: 219583
David Majnemer [Sun, 12 Oct 2014 06:58:22 +0000 (06:58 +0000)]
CodeGen: Strip qualifiers from qualified array types in catches
While we ran getUnqualifiedType over the catch type,
it isn't enough for array types. Use getUnqualifiedArrayType instead.
This fixes PR21252.
llvm-svn: 219582
NAKAMURA Takumi [Sun, 12 Oct 2014 06:47:47 +0000 (06:47 +0000)]
llvm/test/CodeGen: Some tests don't REQUIRE asserts any more. Remove them.
llvm-svn: 219581
NAKAMURA Takumi [Sun, 12 Oct 2014 06:44:05 +0000 (06:44 +0000)]
clang/test/Driver: Some tests don't REQUIRE asserts any more. Remove them.
llvm-svn: 219580
NAKAMURA Takumi [Sat, 11 Oct 2014 22:21:27 +0000 (22:21 +0000)]
Suppress llvm-ar's MRI tests for now on win32, since line_iterator is incompatible to CRLF.
llvm-svn: 219579
Todd Fiala [Sat, 11 Oct 2014 21:42:09 +0000 (21:42 +0000)]
llgs: fixes to PTY/gdb-remote inferior stdout/stderr handling, logging addtions.
With this change, both local-process llgs and remote-target llgs stdout/stderr
handling from inferior work correctly.
Several log lines have been added around PTY and stdout/stderr redirection
logic on the lldb client side.
Regarding remote llgs execution, see the following:
With these changes, remote llgs with $O now works properly:
$ lldb
(lldb) platform select remote-linux
(lldb) target create ~/some/inferior/exe
(lldb) gdb-remote {some-target}:{port}
(lldb) run
The sequence above will correctly redirect stdout/stderr over gdb-remote $O,
as is needed for remote debugging. That sequence assumes there is a lldb-gdbserver
exe running on the target with {some-host}:{port}.
You can replace the gdb-remote command with a '(lldb) platform connect
connect://{target-ip}:{target-port}'. If you do this and have a
lldb-platform running on the remote end, it will go ahead and launch
llgs for lldb for each target instance that is run/attached.
For local debugging with llgs, the following sequence also works, and
uses local PTYs instead to avoid $O and extra gdb-remote messages:
$ lldb
(lldb) settings set platform.plugin.linux.use-llgs true
(lldb) target create ~/some/inferior/exe
(lldb) run
The above will run the inferior using llgs on the local host, and
will use PTYs rather than $O redirection.
This change also removes the logging that happened after the fork but
before the exec when llgs is launching a new inferior process. Some
aspect of the file handling during that portion of code would not do
the right thing with log handling. We might want to go back later
and have that communicate over a pipe from the child to parent to pass
along any messages that previously were logged in that section of code.
llvm-svn: 219578
Simon Pilgrim [Sat, 11 Oct 2014 20:28:56 +0000 (20:28 +0000)]
Test commit access (email fix)
Indentation tidyup.
llvm-svn: 219577
Todd Fiala [Sat, 11 Oct 2014 20:11:18 +0000 (20:11 +0000)]
Fix cmake build for PluginInstrumentationRuntimeAddressSanitizer.
llvm-svn: 219576
Benjamin Kramer [Sat, 11 Oct 2014 19:13:01 +0000 (19:13 +0000)]
AssumptionTracker: Don't create temporary CallbackVHs.
Those are expensive to create in cold cache scenarios. NFC.
llvm-svn: 219575
Benjamin Kramer [Sat, 11 Oct 2014 17:57:27 +0000 (17:57 +0000)]
MC: Shrink MCSymbolRefExpr by only storing the bits we need.
32 -> 16 bytes on x86_64. NFC.
llvm-svn: 219574
Benjamin Kramer [Sat, 11 Oct 2014 15:07:21 +0000 (15:07 +0000)]
MC: Bit pack MCSymbolData.
On x86_64 this brings it from 80 bytes to 64 bytes. Also make any member
variables private and clean up uses to go through the existing accessors.
NFC.
llvm-svn: 219573
Simon Pilgrim [Sat, 11 Oct 2014 14:23:36 +0000 (14:23 +0000)]
Test commit access
Fix comment typo + spelling.
llvm-svn: 219572
Chandler Carruth [Sat, 11 Oct 2014 11:29:26 +0000 (11:29 +0000)]
Suppress a warning about an unused variable in NDEBUG builds.
llvm-svn: 219571
Chandler Carruth [Sat, 11 Oct 2014 11:03:30 +0000 (11:03 +0000)]
[complex] Teach the other two binary operators on complex numbers (==
and !=) to support mixed complex and real operand types.
This requires removing an assert from SemaChecking, and adding support
both to the constant evaluator and the code generator to synthesize the
imaginary part when needed. This seemed somewhat cleaner than having
just the comparison operators force real-to-complex conversions.
I've added test cases for these operations. I'm really terrified that
there were *no* tests in-tree which exercised this.
This turned up when trying to build R after my change to the complex
type lowering.
llvm-svn: 219570
Renato Golin [Sat, 11 Oct 2014 10:34:18 +0000 (10:34 +0000)]
Fix typo in ARM reserved-r9 test case
Patch by Charlie Turner.
llvm-svn: 219569
David Majnemer [Sat, 11 Oct 2014 10:20:04 +0000 (10:20 +0000)]
InstCombine: Don't fold (X <<s log(INT_MIN)) /s INT_MIN to X
Consider the case where X is 2. (2 <<s 31)/s-
2147483648 is zero but we
would fold to X. Note that this is valid when we are in the unsigned
domain because we require NUW: 2 <<u 31 results in poison.
This fixes PR21245.
llvm-svn: 219568
David Majnemer [Sat, 11 Oct 2014 10:20:01 +0000 (10:20 +0000)]
InstCombine, InstSimplify: (%X /s C1) /s C2 isn't always 0 when C1 * C2 overflow
consider:
C1 = INT_MIN
C2 = -1
C1 * C2 overflows without a doubt but consider the following:
%x = i32 INT_MIN
This means that (%X /s C1) is 1 and (%X /s C1) /s C2 is -1.
N. B. Move the unsigned version of this transform to InstSimplify, it
doesn't create any new instructions.
This fixes PR21243.
llvm-svn: 219567
David Majnemer [Sat, 11 Oct 2014 10:19:52 +0000 (10:19 +0000)]
InstCombine: mul to shl shouldn't preserve nsw
consider:
mul i32 nsw %x, -
2147483648
this instruction will not result in poison if %x is 1
however, if we transform this into:
shl i32 nsw %x, 31
then we will be generating poison because we just shifted into the sign
bit.
This fixes PR21242.
llvm-svn: 219566
Chandler Carruth [Sat, 11 Oct 2014 09:24:41 +0000 (09:24 +0000)]
[complex] Use the much more powerful EmitCall routine to call libcalls
for complex math.
This should fix the windows build bots that started having trouble here
and generally fix complex libcall emission on targets which use sret for
complex data types. It also makes the code a bit simpler (despite
calling into a much more complex bucket of code).
llvm-svn: 219565
Daniel Jasper [Sat, 11 Oct 2014 08:24:56 +0000 (08:24 +0000)]
clang-format: [ObjC] Wrap ObjC method declarations before annotations.
Before:
- (instancetype)initXxxxxxxxxxxxxxxxxxxxxxxxx:(id<x>)x
y:(id<yyyyyyyyyyyyyyyyyyyy>)
y NS_DESIGNATED_INITIALIZER;
After:
- (instancetype)initXxxxxxxxxxxxxxxxxxxxxxxxx:(id<x>)x
y:(id<yyyyyyyyyyyyyyyyyyyy>)y
NS_DESIGNATED_INITIALIZER;
llvm-svn: 219564
Chandler Carruth [Sat, 11 Oct 2014 06:49:00 +0000 (06:49 +0000)]
[UBSan] Disable one run line of this test to allow the test as a whole
to pass in an opt build.
The test case in question does show UBSan catching the error, but it
doesn't then successfully set the exit code of the program. I'll let the
UBSan folks sort out why. It should reproduce trivially with an
optimized build.
llvm-svn: 219563
Chandler Carruth [Sat, 11 Oct 2014 05:28:30 +0000 (05:28 +0000)]
[SCEV] Fix one more caller blindly passing the latch to SCEV's
getSmallConstantTripCount even when it isn't the exiting block.
I missed this in my first audit, very sorry. This was found in LNT and
elsewhere. I don't have a test case, but it was completely obvious from
inspection that this was the problem. I'll see if I can reduce a test
case, but I'm not really hopeful, and the value seems quite low.
llvm-svn: 219562
Alexey Bataev [Sat, 11 Oct 2014 05:07:24 +0000 (05:07 +0000)]
Fix deserialization of PredefinedExpr in dependent context.
llvm-svn: 219561
Kuba Brecka [Sat, 11 Oct 2014 01:59:32 +0000 (01:59 +0000)]
Add a IsInstrumentationRuntimePresent SB API
Reviewed at http://reviews.llvm.org/D5738
This adds an SB API into SBProcess:
bool SBProcess::IsInstrumentationRuntimePresent(InstrumentationRuntimeType type);
which simply tells whether a particular InstrumentationRuntime (read "ASan") plugin is present and active.
llvm-svn: 219560
Alexey Samsonov [Sat, 11 Oct 2014 01:34:16 +0000 (01:34 +0000)]
[UBSan] Fix UBSan testcase for float->int conversion after LLVM r219542.
llvm-svn: 219559
Chandler Carruth [Sat, 11 Oct 2014 01:04:40 +0000 (01:04 +0000)]
Guard the definition of the stack tracing function with the same macros
that guard its usage. Without this, we can get unused function warnings
when backtraces are disabled.
llvm-svn: 219558
Chandler Carruth [Sat, 11 Oct 2014 00:57:18 +0000 (00:57 +0000)]
[complex] Teach Clang to preserve different-type operands to arithmetic
operators where one type is a C complex type, and to emit both the
efficient and correct implementation for complex arithmetic according to
C11 Annex G using this extra information.
For both multiply and divide the old code was writing a long-hand
reduced version of the math without any of the special handling of inf
and NaN recommended by the standard here. Instead of putting more
complexity here, this change does what GCC does which is to emit
a libcall for the fully general case.
However, the old code also failed to do the proper minimization of the
set of operations when there was a mixed complex and real operation. In
those cases, C provides a spec for much more minimal operations that are
valid. Clang now emits the exact suggested operations. This change isn't
*just* about performance though, without minimizing these operations, we
again lose the correct handling of infinities and NaNs. It is critical
that this happen in the frontend based on assymetric type operands to
complex math operations.
The performance implications of this change aren't trivial either. I've
run a set of benchmarks in Eigen, an open source mathematics library
that makes heavy use of complex. While a few have slowed down due to the
libcall being introduce, most sped up and some by a huge amount: up to
100% and 140%.
In order to make all of this work, also match the algorithm in the
constant evaluator to the one in the runtime library. Currently it is
a broken port of the simplifications from C's Annex G to the long-hand
formulation of the algorithm.
Splitting this patch up is very hard because none of this works without
the AST change to preserve non-complex operands. Sorry for the enormous
change.
Follow-up changes will include support for sinking the libcalls onto
cold paths in common cases and fastmath improvements to allow more
aggressive backend folding.
Differential Revision: http://reviews.llvm.org/D5698
llvm-svn: 219557
Reed Kotler [Sat, 11 Oct 2014 00:55:18 +0000 (00:55 +0000)]
Add basic conditional branches in mips fast-isel
Summary: Implement the most basic form of conditional branches in Mips fast-isel.
Test Plan:
br1.ll
run 4 flavors of test-suite. mips32 r1/r2 and at -O0/O2
Reviewers: dsanders
Reviewed By: dsanders
Subscribers: llvm-commits, rfuhler
Differential Revision: http://reviews.llvm.org/D5583
llvm-svn: 219556
Kuba Brecka [Sat, 11 Oct 2014 00:53:32 +0000 (00:53 +0000)]
include compiler-rt in build-llvm.pl
Reviewed at http://reviews.llvm.org/D5736
The new test cases for ASan fail if the llvm build that is used with LLDB doesn't have compiler-rt (because the resulting compiler then cannot build with -fsanitize=address). Let's include compiler-rt in build-llvm.pl script and make sure we actually *build* it by removing the NO_RUNTIME_LIBS=1 argument used in the make line. After this, the ASan tests pass on a fresh svn checkout.
llvm-svn: 219555
Eric Christopher [Sat, 11 Oct 2014 00:38:55 +0000 (00:38 +0000)]
Fix the build after the recent plugin additions for
AddressSanitizer by adding dependencies and definitions.
llvm-svn: 219554
Jim Ingham [Sat, 11 Oct 2014 00:38:27 +0000 (00:38 +0000)]
Rework the way we pass "run multiple command" options to the various API's that
do that (RunCommandInterpreter, HandleCommands, HandleCommandsFromFile) to gather
the options into an options class. Also expose that to the SB API's.
Change the way the "-o" options to the lldb driver are processed so:
1) They are run synchronously - didn't really make any sense to run the asynchronously.
2) The stop on error
3) "quit" in one of the -o commands will not quit lldb - not the command interpreter
that was running the -o commands.
I added an entry to the run options to stop-on-crash, but I haven't implemented that yet.
llvm-svn: 219553
Richard Smith [Sat, 11 Oct 2014 00:37:16 +0000 (00:37 +0000)]
[modules] When instantiating a class member, don't expect to find the previous
declaration in the instantiation if the previous declaration came from another
definition of the class template that got merged into the pattern definition.
llvm-svn: 219552
Ehsan Akhgari [Sat, 11 Oct 2014 00:24:15 +0000 (00:24 +0000)]
clang-cl: Don't warn for unused private fields when encountering a late parsed template member
Summary: This fixes PR21235.
Test Plan: Includes an automated test.
Reviewers: hansw
Subscribers: cfe-commits
Differential Revision: http://reviews.llvm.org/D5718
llvm-svn: 219551
Chandler Carruth [Sat, 11 Oct 2014 00:12:11 +0000 (00:12 +0000)]
[SCEV] Add some asserts to the recently improved trip count computation
routines and fix all of the bugs they expose.
I hit a test case that crashed even without these asserts due to passing
a non-exiting latch to the ExitingBlock parameter of the trip count
computation machinery. However, when I add the nice asserts, it turns
out we have plenty of coverage of these bugs, they just didn't manifest
in crashers.
The core problem seems to stem from an assumption that the latch *is*
the exiting block. While this is often true, and somewhat the "normal"
way to think about loops, it isn't necessarily true. The correct way to
call the trip count routines in a *generic* fashion (that is, without
a particular exit in mind) is to just use the loop's single exiting
block if it has one. The trip count can't be computed generically unless
it does. This works great for the loop vectorizer. The loop unroller
actually *wants* to select the latch when it has to chose between
multiple exits because for unrolling it is the latch trips that matter.
But if this is the desire, it needs to explicitly guard for non-exiting
latches and check for the generic trip count in that case.
I've added the asserts, and added convenience APIs for querying the trip
count generically that check for a single exit block. I've kept the APIs
consistent between computing trip count and trip multiples.
Thansk to Mark for the help debugging and tracking down the *right* fix
here!
llvm-svn: 219550
Eric Christopher [Sat, 11 Oct 2014 00:04:42 +0000 (00:04 +0000)]
Reinstate setting addr_width to the result of the computation,
but in the conditional rather than at initialization time.
llvm-svn: 219549
Eric Christopher [Sat, 11 Oct 2014 00:00:08 +0000 (00:00 +0000)]
Remove default case from a fully covered switch.
llvm-svn: 219548
Eric Christopher [Fri, 10 Oct 2014 23:58:30 +0000 (23:58 +0000)]
Fix unused variable warning from r219544.
llvm-svn: 219547
Kuba Brecka [Fri, 10 Oct 2014 23:43:03 +0000 (23:43 +0000)]
LLDB AddressSanitizer instrumentation runtime plugin, breakpint on error and report data extraction
Reviewed at http://reviews.llvm.org/D5592
This patch gives LLDB some ability to interact with AddressSanitizer runtime library, on top of what we already have (historical memory stack traces provided by ASan). Namely, that's the ability to stop on an error caught by ASan, and access the report information that are associated with it. The report information is also exposed into SB API.
More precisely this patch...
adds a new plugin type, InstrumentationRuntime, which should serve as a generic superclass for other instrumentation runtime libraries, these plugins get notified when modules are loaded, so they get a chance to "activate" when a specific dynamic library is loaded
an instance of this plugin type, AddressSanitizerRuntime, which activates itself when it sees the ASan dynamic library or founds ASan statically linked in the executable
adds a collection of these plugins into the Process class
AddressSanitizerRuntime sets an internal breakpoint on __asan::AsanDie(), and when this breakpoint gets hit, it retrieves the report information from ASan
this breakpoint is then exposed as a new StopReason, eStopReasonInstrumentation, with a new StopInfo subclass, InstrumentationRuntimeStopInfo
the StopInfo superclass is extended with a m_extended_info field (it's a StructuredData::ObjectSP), that can hold arbitrary JSON-like data, which is the way the new plugin provides the report data
the "thread info" command now accepts a "-s" flag that prints out the JSON data of a stop reason (same way the "-j" flag works now)
SBThread has a new API, GetStopReasonExtendedInfoAsJSON, which dumps the JSON string into a SBStream
adds a test case for all of this
I plan to also get rid of the original ASan plugin (memory history stack traces) and use an instance of AddressSanitizerRuntime for that purpose.
Kuba
llvm-svn: 219546
Bob Wilson [Fri, 10 Oct 2014 23:10:10 +0000 (23:10 +0000)]
Treat -mios-simulator-version-min option as an alias for -mios-version-min.
We can safely rely on the architecture to distinguish iOS device builds from
iOS simulator builds. We already have code to do that, in fact. This simplifies
some of the error checking for the option handling.
llvm-svn: 219545
Jason Molenda [Fri, 10 Oct 2014 23:07:36 +0000 (23:07 +0000)]
Add a new disassembly-format specification so that the disassembler
output style can be customized. Change the built-in default to be
more similar to gdb's disassembly formatting.
The disassembly-format for a gdb-like output is
${addr-file-or-load} <${function.name-without-args}${function.concrete-only-addr-offset-no-padding}>:
The disassembly-format for the lldb style output is
{${function.initial-function}{${module.file.basename}`}{${function.name-without-args}}:\n}{${function.changed}\n{${module.file.basename}`}{${function.name-without-args}}:\n}{${current-pc-arrow} }{${addr-file-or-load}}:
The two backticks in the lldb style formatter triggers the sub-expression evaluation in
CommandInterpreter::PreprocessCommand() so you can't use that one as-is ... changing to
use ' characters instead of ` would work around that.
<rdar://problem/9885398>
llvm-svn: 219544
Lang Hames [Fri, 10 Oct 2014 23:07:09 +0000 (23:07 +0000)]
[MCJIT] Replace memcpy with readBytesUnaligned in RuntimeDyldMachOI386.
This should fix the failures of the MachO_i386_DynNoPIC_relocations.s test case
on MIPS hosts.
llvm-svn: 219543
Sanjay Patel [Fri, 10 Oct 2014 23:00:21 +0000 (23:00 +0000)]
Return undef on FP <-> Int conversions that overflow (PR21330).
The LLVM Lang Ref states for signed/unsigned int to float conversions:
"If the value cannot fit in the floating point value, the results are undefined."
And for FP to signed/unsigned int:
"If the value cannot fit in ty2, the results are undefined."
This matches the C definitions.
The existing behavior pins to infinity or a max int value, but that may just
lead to more confusion as seen in:
http://llvm.org/bugs/show_bug.cgi?id=21130
Returning undef will hopefully lead to a less silent failure.
Differential Revision: http://reviews.llvm.org/D5603
llvm-svn: 219542
Alexey Samsonov [Fri, 10 Oct 2014 22:58:26 +0000 (22:58 +0000)]
Follow-up to r219534 to make symbolization more robust.
1) Explicitly provide important arguments to llvm-symbolizer,
not relying on defaults.
2) Be more defensive about symbolizer output.
This might fix weird failures on ninja-x64-msvc-RA-centos6 buildbot.
llvm-svn: 219541
Enrico Granata [Fri, 10 Oct 2014 22:45:38 +0000 (22:45 +0000)]
When parsing ObjC types from encoded strings (and disallowing any-type), the ^? combination gets resolved to no type, while we could resolve it to void*
I don't think on any of the platforms where ObjC matters sizeof(T*) depends on T, so even if we never figured out the pointee type, the pointer type should still be sane
This might also allow some limited inspection where previously none was possible, so a win
llvm-svn: 219540
Richard Smith [Fri, 10 Oct 2014 22:37:41 +0000 (22:37 +0000)]
[modules] Delay loading the field declared with an anonymous tag declaration
until after we've had a chance to merge that tag.
llvm-svn: 219539
Justin Bogner [Fri, 10 Oct 2014 22:20:26 +0000 (22:20 +0000)]
Correctly handle reading locations from serialized diagnostics
When reading a serialized diagnostic location with no file ID, we were
failing to increment the cursor past the rest of the location. This
would lead to the flags and category always appearing blank in such
diagnostics.
This changes the function to unconditionally increment the cursor and
updates the test to check for the correct output instead of testing
that we were doing this wrong. I've also updated the error check to
check for the correct number of fields.
llvm-svn: 219538
Matt Arsenault [Fri, 10 Oct 2014 22:16:07 +0000 (22:16 +0000)]
R600/SI: Change how DS offsets are printed
Match SC by using offset/offset0/offset1 and printing
in decimal.
llvm-svn: 219537
Matt Arsenault [Fri, 10 Oct 2014 22:12:32 +0000 (22:12 +0000)]
R600/SI: Match read2/write2 stride 64 versions
llvm-svn: 219536
Fariborz Jahanian [Fri, 10 Oct 2014 22:08:23 +0000 (22:08 +0000)]
Objective-C [qoi]. When reporting that a property is not
auto synthesized because it is synthesized in its super
class. locate property declaration in super class
which will default synthesize the property. rdar://
18488727
llvm-svn: 219535
Alexey Samsonov [Fri, 10 Oct 2014 22:06:59 +0000 (22:06 +0000)]
Re-land r219354: Use llvm-symbolizer to symbolize LLVM/Clang crash dumps.
In fact, symbolization is now expected to work only on Linux and
FreeBSD/NetBSD, where we have dl_iterate_phdr and can learn the
main executable name without argv0 (it will be possible on BSD systems
after http://reviews.llvm.org/D5693 lands). #ifdef-out the code for
all the rest Unix systems.
Reviewed in http://reviews.llvm.org/D5610
llvm-svn: 219534
Matt Arsenault [Fri, 10 Oct 2014 22:01:59 +0000 (22:01 +0000)]
R600/SI: Add load / store machine optimizer pass.
Currently this only functions to match simple cases
where ds_read2_* / ds_write2_* instructions can be used.
In the future it might match some of the other weird
load patterns, such as direct to LDS loads.
Currently enabled only with a subtarget feature to enable
easier testing.
llvm-svn: 219533