Commit Graph

8769 Commits

Author SHA1 Message Date
Diego Novillo 86f884ed46 Fix BackendConsumer::EmitOptimizationMessage()
Patch from Geoff Berry <gberry@codeaurora.org>

Fix BackendConsumer::EmitOptimizationMessage() to check if the
DiagnosticInfoOptimizationBase object has a valid location before
calling getLocation() to avoid dereferencing a null pointer inside
getLocation() when no debug info is present.

llvm-svn: 236898
2015-05-08 20:59:56 +00:00
Derek Schuff 2312bd3811 Do not emit thunks with available_externally linkage in comdats
Functions with available_externally linkage will not be emitted to object
files (they will just be undefined symbols), so it does not make sense to
put them in comdats.

Creates a second overload of maybeSetTrivialComdat that uses the GlobalObject
instead of the Decl, and uses that in several places that had the faulty
logic.

Differential Revision: http://reviews.llvm.org/D9580

llvm-svn: 236879
2015-05-08 16:47:21 +00:00
Alexey Bataev 9d541a72e8 [OPENMP] Fixed atomic construct with non-integer expressions.
Do not emit 'atomicrmw' instruction for simple atomic constructs with non-integer expressions.

llvm-svn: 236828
2015-05-08 11:47:16 +00:00
Alexey Bataev 39f915b8f4 [OPENMP] Code cleanup for capturing of variables in OpenMP regions.
llvm-svn: 236821
2015-05-08 10:41:21 +00:00
Alexey Samsonov dfa908c8d5 [SanitizerCoverage] Implement user-friendly -fsanitize-coverage= flags.
Summary:
Possible coverage levels are:
  * -fsanitize-coverage=func - function-level coverage
  * -fsanitize-coverage=bb - basic-block-level coverage
  * -fsanitize-coverage=edge - edge-level coverage

Extra features are:
  * -fsanitize-coverage=indirect-calls - coverage for indirect calls
  * -fsanitize-coverage=trace-bb - tracing for basic blocks
  * -fsanitize-coverage=trace-cmp - tracing for cmp instructions
  * -fsanitize-coverage=8bit-counters - frequency counters

Levels and features can be combined in comma-separated list, and
can be disabled by subsequent -fno-sanitize-coverage= flags, e.g.:
  -fsanitize-coverage=bb,trace-bb,8bit-counters -fno-sanitize-coverage=trace-bb
is equivalient to:
  -fsanitize-coverage=bb,8bit-counters

Original semantics of -fsanitize-coverage flag is preserved:
  * -fsanitize-coverage=0 disables the coverage
  * -fsanitize-coverage=1 is a synonym for -fsanitize-coverage=func
  * -fsanitize-coverage=2 is a synonym for -fsanitize-coverage=bb
  * -fsanitize-coverage=3 is a synonym for -fsanitize-coverage=edge
  * -fsanitize-coverage=4 is a synonym for -fsanitize-coverage=edge,indirect-calls

Driver tries to diagnose invalid flag usage, in particular:
  * At most one level (func,bb,edge) must be specified.
  * "trace-bb" and "8bit-counters" features require some level to be specified.

See test case for more examples.

Test Plan: regression test suite

Reviewers: kcc

Subscribers: cfe-commits

Differential Revision: http://reviews.llvm.org/D9577

llvm-svn: 236790
2015-05-07 22:34:06 +00:00
David Majnemer ec8e54bbef [MS ABI] Make sure we number thread_local statics seperately
The thread_local variables need their own numbers, they can't share with
the other static local variables.

llvm-svn: 236774
2015-05-07 21:19:06 +00:00
Artem Belevich 52cc487ba8 [cuda] Include GPU binary into host object file and generate init/deinit code.
- added -fcuda-include-gpubinary option to incorporate results of
  device-side compilation into host-side one.
- generate code to register GPU binaries and associated kernels
  with CUDA runtime and clean-up on exit.
- added test case for init/deinit code generation.

Differential Revision: http://reviews.llvm.org/D9507

llvm-svn: 236765
2015-05-07 19:34:16 +00:00
Alexey Samsonov 3f3b3abe2b [SanitizerCoverage] Give clang-cc1 the power to precisly specify needed sanitizier coverage mode.
Summary:
The next step is to add user-friendly control over these options
to driver via -fsanitize-coverage= option.

Test Plan: regression test suite

Reviewers: kcc

Subscribers: cfe-commits

Differential Revision: http://reviews.llvm.org/D9545

llvm-svn: 236756
2015-05-07 18:31:29 +00:00
David Blaikie d3c127e232 [opaque pointer type] Correctly pass the pointee type when creating a GEP constant expression
llvm-svn: 236751
2015-05-07 17:27:56 +00:00
Alexey Bataev 43f7439cf5 Fix for http://llvm.org/PR23392: magick/feature.c from ImageMagick-6.9.1-2 ICEs.
Fix for codegen of static variables declared inside of captured statements. Captured statements are actually a transparent DeclContexts, so we have to skip them when trying to get a mangled name for statics.
Differential Revision: http://reviews.llvm.org/D9522

llvm-svn: 236701
2015-05-07 06:28:46 +00:00
David Majnemer 8354eeed19 [MS ABI] Implement thread-safe initialization using the MSVC 2015 ABI
The MSVC 2015 ABI utilizes a rather straightforward adaptation of the
algorithm found in the appendix of N2382.  While we are here, implement
support for emitting cleanups if an exception is thrown while we are
intitializing a static local variable.

llvm-svn: 236697
2015-05-07 06:15:46 +00:00
Alexey Bataev 53223c986c [OPENMP] Generate !llvm.mem.loop_parallel_access metadata for loops with dynamic/guided scheduling.
Inner bodies of OpenMP worksharing loop-based constructs with dynamic or guided scheduling are allowed to be marked with !llvm.mem.parallel_loop_access metadata for better optimization. Worksharing constructs with static scheduling cannot be marked this way (according to OpenMP standard "A data dependence between the same logical iterations in two such loops is guaranteed").
Constructs with auto and runtime scheduling are also not marked because automatically chosen scheduling may be static also.
Differential Revision: http://reviews.llvm.org/D9518

llvm-svn: 236693
2015-05-07 04:25:17 +00:00
Alexey Bataev 69a4779965 [OPENMP] Fixed codegen for 'reduction' clause.
Fixed codegen for reduction operations min, max, && and ||. Codegen for them is quite similar and I was confused by this similarity.
Also added a call to kmpc_end_reduce() in atomic part of reduction codegen (call to kmpc_end_reduce_nowait() is not required).
Differential Revision: http://reviews.llvm.org/D9513

llvm-svn: 236689
2015-05-07 03:54:03 +00:00
Duncan P. N. Exon Smith d6616acb2c CGCXX: Use cast in getAddrOfCXXStructor()
All callers should be passing `CXXConstructorDecl` or
`CXXDestructorDecl` here, so use `cast<>` instead of `dyn_cast<>` when
setting up the `GlobalDecl`.

llvm-svn: 236651
2015-05-06 22:18:39 +00:00
Justin Bogner 6d721fa28c InstrProf: Don't start or end coverage regions inside of system macros
It doesn't make much sense to try to show coverage inside system
macros, and source locations in builtins confuses the coverage
mapping. Just avoid doing this.

Fixes an assert that fired when a __block storage specifier starts a
region.

llvm-svn: 236547
2015-05-05 21:46:14 +00:00
Ulrich Weigand 5722c0f192 [SystemZ] Add support for z13 low-level vector builtins
This adds low-level builtins to allow access to all of the z13 vector
instructions.  Note that instructions whose semantics can be described
by standard C (including clang extensions) do not get any builtins.

For each instructions whose semantics *cannot* (fully) be described, we
define a builtin named __builtin_s390_<insn> that directly maps to this
instruction.  These are intended to be compatible with GCC.

For instructions that also set the condition code, the builtin will take
an extra argument of type "int *" at the end.  The integer pointed to by
this argument will be set to the post-instruction CC value.

For many instructions, the low-level builtin is mapped to the corresponding
LLVM IR intrinsic.  However, a number of instructions can be represented
in standard LLVM IR without requiring use of a target intrinsic.

Some instructions require immediate integer operands within a certain
range.  Those are verified at the Sema level.

Based on a patch by Richard Sandiford.

llvm-svn: 236532
2015-05-05 19:36:42 +00:00
Ulrich Weigand 66ff51b4ea [SystemZ] Add support for z13 and its vector facility
This patch adds support for the z13 architecture type.  For compatibility
with GCC, a pair of options -mvx / -mno-vx can be used to selectively
enable/disable use of the vector facility.

When the vector facility is present, we default to the new vector ABI.
This is characterized by two major differences:
- Vector types are passed/returned in vector registers
  (except for unnamed arguments of a variable-argument list function).
- Vector types are at most 8-byte aligned.

The reason for the choice of 8-byte vector alignment is that the hardware
is able to efficiently load vectors at 8-byte alignment, and the ABI only
guarantees 8-byte alignment of the stack pointer, so requiring any higher
alignment for vectors would require dynamic stack re-alignment code.

However, for compatibility with old code that may use vector types, when
*not* using the vector facility, the old alignment rules (vector types
are naturally aligned) remain in use.

These alignment rules are not only implemented at the C language level,
but also at the LLVM IR level.  This is done by selecting a different
DataLayout string depending on whether the vector ABI is in effect or not.

Based on a patch by Richard Sandiford.

llvm-svn: 236531
2015-05-05 19:35:52 +00:00
Alexey Bataev a744ff58f3 [OPENMP] Fixed incorrect work with cleanups, NFC.
Destructors are never called for cleanups, so we can't use SmallVector as a member.
Differential Revision: http://reviews.llvm.org/D9399

llvm-svn: 236491
2015-05-05 09:24:37 +00:00
Alexey Bataev ce348a49b4 Revert revision 236487: [OPENMP] Fixed incorrect work with cleanups, NFC.
llvm-svn: 236490
2015-05-05 08:48:39 +00:00
Alexey Bataev fc80e26fe6 [OPENMP] Fixed incorrect work with cleanups, NFC.
Destructors are never called for cleanups, so we can't use SmallVector as a member.
Differential Revision: http://reviews.llvm.org/D9399

llvm-svn: 236487
2015-05-05 08:38:22 +00:00
Alexey Bataev 1d526a613d Revert revision 236482: [OPENMP] Fixed incorrect work with cleanups, NFC.
Due to some incompatibilities with Windows.

llvm-svn: 236483
2015-05-05 06:32:45 +00:00
Alexey Bataev 70542831fc [OPENMP] Fixed incorrect work with cleanups, NFC.
Destructors are never called for cleanups, so we can't use SmallVector as a member.
Differential Revision: http://reviews.llvm.org/D9399

llvm-svn: 236482
2015-05-05 06:21:01 +00:00
Alexey Bataev f4497be0bb Revert revision 236480: [OPENMP] Fixed incorrect work with cleanups, NFC.
Due to some incompatibilities with Windows.

llvm-svn: 236481
2015-05-05 04:56:26 +00:00
Alexey Bataev 329731ea75 [OPENMP] Fixed incorrect work with cleanups, NFC.
Destructors are never called for cleanups, so we can't use SmallVector as a member.
Differential Revision: http://reviews.llvm.org/D9399

llvm-svn: 236480
2015-05-05 04:42:07 +00:00
Alexey Bataev 9e03404d8d [OPENMP] Codegen for 'firstprivate' clause in 'task' directive.
For tasks codegen for private/firstprivate variables are different rather than for other directives.

1. Build an internal structure of privates for each private variable:
struct .kmp_privates_t. {
  Ty1 var1;
  ...
  Tyn varn;
};
2. Add a new field to kmp_task_t type with list of privates.
struct kmp_task_t {
  void *              shareds;
  kmp_routine_entry_t routine;
  kmp_int32           part_id;
  kmp_routine_entry_t destructors;
  .kmp_privates_t.    privates;
};
3. Create a function with destructors calls for all privates after end of task region.
kmp_int32 .omp_task_destructor.(kmp_int32 gtid, kmp_task_t *tt) {
  ~Destructor(&tt->privates.var1);
  ...
  ~Destructor(&tt->privates.varn);
  return 0;
}
4. Perform initialization of all firstprivate fields (by simple copying for POD data, copy constructor calls for classes) + provide address of a destructor function after kmpc_omp_task_alloc() and before kmpc_omp_task() calls.
kmp_task_t *new_task = __kmpc_omp_task_alloc(ident_t *, kmp_int32 gtid, kmp_int32 flags, size_t sizeof_kmp_task_t, size_t sizeof_shareds, kmp_routine_entry_t *task_entry);

CopyConstructor(new_task->privates.var1, *new_task->shareds.var1_ref);
new_task->shareds.var1_ref = &new_task->privates.var1;
...
CopyConstructor(new_task->privates.varn, *new_task->shareds.varn_ref);
new_task->shareds.varn_ref = &new_task->privates.varn;

new_task->destructors = .omp_task_destructor.;
kmp_int32 __kmpc_omp_task(ident_t *, kmp_int32 gtid, kmp_task_t *new_task)
Differential Revision: http://reviews.llvm.org/D9370

llvm-svn: 236479
2015-05-05 04:05:12 +00:00
Justin Bogner 65512647cc InstrProf: Cede ownership of createProfileWeights to CGF
The fact that PGO has a say in how these branch weights are determined
isn't interesting to most of CodeGen, so it makes more sense for this
API to be accessible via CodeGenFunction rather than CodeGenPGO.

llvm-svn: 236380
2015-05-02 05:00:55 +00:00
Steven Wu 1d56be869e Fix -fobjc-arc doesn't work with -save-temps
The underlying problem is that there is currently no way to run
ObjCARCContract from llvm bitcode which is required by ObjC ARC.
This fix the problem by always enable ObjCARCContract pass if
optimization is enabled. The ObjCARC Contract pass has almost no
overhead on code that is not using ARC.

llvm-svn: 236372
2015-05-02 00:56:15 +00:00
Justin Bogner a909abfd29 InstrProf: Use a locally tracked current count in ComputeRegionCounts
No functional change. This just makes it more obvious that the logic
in ComputeRegionCounts only depends on the counter map and local
state.

llvm-svn: 236370
2015-05-02 00:48:27 +00:00
Justin Bogner 07193cc80b InstrProf: Replace the RegionCounter class with a simpler direct approach
This removes the RegionCounter class, which is only used as a helper
in teh ComputeRegionCounts stmt visitor. This class is just an extra
layer of abstraction that makes the code harder to follow at this
point, and removing it makes the logic quite a bit more direct.

llvm-svn: 236364
2015-05-01 23:41:09 +00:00
Justin Bogner 96ae73f724 InstrProf: Fix a coverage crash where a macro begins in an unreachable block
llvm-svn: 236335
2015-05-01 19:23:34 +00:00
Benjamin Kramer 439ee9d7bc Make helper functions static. NFC.
llvm-svn: 236315
2015-05-01 13:59:53 +00:00
Justin Bogner f43d8e1cce InstrProf: This call does nothing, remove it
llvm-svn: 236298
2015-05-01 01:02:17 +00:00
Justin Bogner a71e681792 InstrProf: Support for setting profile output from command line
This change is the third of 3 patches to add support for specifying
the profile output from the command line via -fprofile-instr-generate=<path>,
where the specified output path/file will be overridden by the
LLVM_PROFILE_FILE environment variable.

This patch adds the necessary support to the clang frontend, and adds a
new test.

The compiler-rt and llvm parts are r236055 and r236288, respectively.

Patch by Teresa Johnson. Thanks!

llvm-svn: 236289
2015-04-30 23:49:42 +00:00
Richard Trieu d1ffdda418 Fix -Wpessimizing-move by removing call to std::move
llvm-svn: 236281
2015-04-30 23:13:52 +00:00
Justin Bogner 2e5d484597 InstrProf: Fix handling of profile counters in the body of range based for
We were assigning the counter for the body of the loop to the loop
variable initialization for some reason here, but our tests completely
lacked coverage for range-for loops. This fixes that and makes the
logic generally more similar to the logic for a regular for.

llvm-svn: 236277
2015-04-30 22:58:28 +00:00
Reid Kleckner cb7a0a0562 Revert most of r236271, leaving only the datalayout change in lib/Basic/Targets.cpp
llvm-svn: 236274
2015-04-30 22:29:25 +00:00
Reid Kleckner af67602e14 Use 4 byte preferred aggregate alignment in datalayout on x86 Win32
llvm-svn: 236271
2015-04-30 22:13:05 +00:00
Justin Bogner 1587432d1f InstrProf: Make sure coverage propagates out of foreach loops correctly
llvm-svn: 236264
2015-04-30 21:31:02 +00:00
Alexey Bataev 36c1eb95e0 [OPENMP] Codegen for 'private' clause in 'task' directive.
For tasks codegen for private/firstprivate variables are different rather than for other directives.

1. Build an internal structure of privates for each private variable:
struct .kmp_privates_t. {
  Ty1 var1;
  ...
  Tyn varn;
};
2. Add a new field to kmp_task_t type with list of privates.
struct kmp_task_t {
  void *              shareds;
  kmp_routine_entry_t routine;
  kmp_int32           part_id;
  kmp_routine_entry_t destructors;
  .kmp_privates_t.    privates;
};
3. Create a function with destructors calls for all privates after end of task region.
kmp_int32 .omp_task_destructor.(kmp_int32 gtid, kmp_task_t *tt) {
  ~Destructor(&tt->privates.var1);
  ...
  ~Destructor(&tt->privates.varn);
  return 0;
}
4. Perform default initialization of all private fields (no initialization for POD data, default constructor calls for classes) + provide address of a destructor function after kmpc_omp_task_alloc() and before kmpc_omp_task() calls.
kmp_task_t *new_task = __kmpc_omp_task_alloc(ident_t *, kmp_int32 gtid, kmp_int32 flags, size_t sizeof_kmp_task_t, size_t sizeof_shareds, kmp_routine_entry_t *task_entry);

DefaultConstructor(new_task->privates.var1);
new_task->shareds.var1_ref = &new_task->privates.var1;
...
DefaultConstructor(new_task->privates.varn);
new_task->shareds.varn_ref = &new_task->privates.varn;

new_task->destructors = .omp_task_destructor.;
kmp_int32 __kmpc_omp_task(ident_t *, kmp_int32 gtid, kmp_task_t *new_task)


Differential Revision: http://reviews.llvm.org/D9322

llvm-svn: 236207
2015-04-30 06:51:57 +00:00
Alexey Bataev 66beaa9349 [OPENMP] Fixed codegen for 'copyprivate' clause.
Fixed initialization of 'single' region completion + changed type of the third argument of __kmpc_copyprivate() runtime function to size_t.

llvm-svn: 236198
2015-04-30 03:47:32 +00:00
Reid Kleckner be9843ce54 Revert r236128, LLVM isn't falling back in the right way
llvm-svn: 236167
2015-04-29 21:55:21 +00:00
David Blaikie 881b23402e [opaque pointer type] update for LLVM API change
llvm-svn: 236161
2015-04-29 21:22:47 +00:00
Richard Smith 419bd09415 PR23373: A defaulted union copy constructor that is not trivial must still be
emitted as a memcpy.

llvm-svn: 236142
2015-04-29 19:26:57 +00:00
Reid Kleckner 0bb12a8981 Re-land r236052, the linker errors were fixed by LLVM r236123
Basic __finally blocks don't cause linker errors anymore (although they
are miscompiled).

llvm-svn: 236128
2015-04-29 17:17:17 +00:00
Adrian Prantl 00820abf02 Debug Info: Represent local anonymous unions as anonymous unions
and as artificial local variables in the debug info.

This is a follow-up to r236059. We can't get rid of the local variables
entirely because the gdb buildbot depends on them, but we can mark them
as artificial while still emitting the correct debug info. As I learned
from review comments other compilers also follow this model.

A paired commit in LLVM temporarily relaxes the debug info verifier to
not check the integrity of DW_OP_bit_pieces of artificial variables.

rdar://problem/20730771

llvm-svn: 236125
2015-04-29 16:52:31 +00:00
Duncan P. N. Exon Smith 9dd4e4e63a DebugInfo: Metadata constructs now start with DI*
LLVM r236120 renamed debug info IR constructs to use a `DI` prefix, now
that the `DIDescriptor` hierarchy has been gone for about a week.  This
commit was generated using the rename-md-di-nodes.sh upgrade script
attached to PR23080, followed by running clang-format-diff.py on the
`lib/` portion of the patch.

llvm-svn: 236121
2015-04-29 16:40:08 +00:00
Adrian Prantl 0d82089233 Revert "Debug Info: Represent local anonymous unions as anonymous unions"
This reverts commit r236059 as it breaks the gdb buildbot.

llvm-svn: 236110
2015-04-29 15:05:50 +00:00
Bradley Smith dfddebcfb9 Revert code changes made under r235976.
This issue was fixed elsewhere in r235396 in a more general way, hence these
changes no longer do anything. Keep the testcase however, to ensure that we
don't regress this for ARM.

llvm-svn: 236104
2015-04-29 14:32:06 +00:00
Alexey Bataev 19fa2c3b66 [OPENMP] Fix crash on reductions codegen for short circuit reduction operations.
llvm-svn: 236084
2015-04-29 05:21:03 +00:00
Nico Weber ea721b64df Revert r236052, it caused linker errors when building 32-bit applications.
llvm-svn: 236082
2015-04-29 03:08:32 +00:00