platform/upstream/llvm.git
10 years agoLLDB now correctly handles virtual inheritance.
Greg Clayton [Sat, 19 Jul 2014 00:12:57 +0000 (00:12 +0000)]
LLDB now correctly handles virtual inheritance.

Test case added as well.

<rdar://problem/16785904>

llvm-svn: 213433

10 years agoRevert "Reapply "DebugInfo: Ensure that all debug location scope chains from instruct...
Eric Christopher [Fri, 18 Jul 2014 23:57:20 +0000 (23:57 +0000)]
Revert "Reapply "DebugInfo: Ensure that all debug location scope chains from instructions within a function, lead to the function itself.""""

After a successful build it seems to have come back on a later build.

This reverts commit r213391.

llvm-svn: 213432

10 years agoRevert r213415, "Merge two lines". It broke tests in -Asserts builds.
NAKAMURA Takumi [Fri, 18 Jul 2014 23:46:16 +0000 (23:46 +0000)]
Revert r213415, "Merge two lines". It broke tests in -Asserts builds.

CGBuilder doesn't name instructions with Name. We should use Inst::setName() to name an instruction explicitly here.

llvm-svn: 213431

10 years agoFundamentally change the MipsSubtarget replacement machinery:
Eric Christopher [Fri, 18 Jul 2014 23:41:32 +0000 (23:41 +0000)]
Fundamentally change the MipsSubtarget replacement machinery:

a) Move the replacement level decision to the target machine.
b) Create additional subtargets at the TargetMachine level to
   cache and make replacement easy.
c) Make the mips16 features obvious.
d) Remove the override logic as it no longer does anything.
e) Have MipsModuleDAGToDAGISel take only the target machine.
f) Have the constant islands pass grab the current subtarget
   from the MachineFunction (via the TargetMachine) instead
   of caching it.
g) Unconditionally initialize TLOF.
h) Remove the old complicated subtarget based resetting and
   replace it with simple conditionals.

llvm-svn: 213430

10 years agoFrameLowering depends only upon the Subtarget, so only take a subtarget
Eric Christopher [Fri, 18 Jul 2014 23:33:47 +0000 (23:33 +0000)]
FrameLowering depends only upon the Subtarget, so only take a subtarget
during initialization.

llvm-svn: 213429

10 years ago[X86 inline-asm] Error out on inline-asm constraint "=f".
Akira Hatanaka [Fri, 18 Jul 2014 23:30:30 +0000 (23:30 +0000)]
[X86 inline-asm] Error out on inline-asm constraint "=f".

<rdar://problem/17476689>

llvm-svn: 213428

10 years ago[PowerPC] 32-bit ELF PIC support
Hal Finkel [Fri, 18 Jul 2014 23:29:49 +0000 (23:29 +0000)]
[PowerPC] 32-bit ELF PIC support

This adds initial support for PPC32 ELF PIC (Position Independent Code; the
-fPIC variety), thus rectifying a long-standing deficiency in the PowerPC
backend.

Patch by Justin Hibbits!

llvm-svn: 213427

10 years agoIn preparation for replacing the whole subtarget on the target machine,
Eric Christopher [Fri, 18 Jul 2014 23:25:04 +0000 (23:25 +0000)]
In preparation for replacing the whole subtarget on the target machine,
have target lowering take the subtarget explicitly.

llvm-svn: 213426

10 years agoMake InstrInfo depend only upon the Subtarget getting passed in
Eric Christopher [Fri, 18 Jul 2014 23:25:00 +0000 (23:25 +0000)]
Make InstrInfo depend only upon the Subtarget getting passed in
rather than the TargetMachine.

llvm-svn: 213425

10 years agoTypePrinter should not omit the static keyword in array parameter declarators
Hal Finkel [Fri, 18 Jul 2014 23:19:20 +0000 (23:19 +0000)]
TypePrinter should not omit the static keyword in array parameter declarators

In C99, an array parameter declarator might have the form: direct-declarator
'[' 'static' type-qual-list[opt] assign-expr ']'

and when the size of the array is a constant, don't omit the static keyword
when printing the type. Also, in the VLA case, put a space after the static
keyword (some assignment expression must follow it).

llvm-svn: 213424

10 years agoObjective-C. Patch to warn if the result of calling a property getter
Fariborz Jahanian [Fri, 18 Jul 2014 22:59:10 +0000 (22:59 +0000)]
Objective-C. Patch to warn if the result of calling a property getter
is unused (this is match behavior when property-dot syntax is used to
use same getter). rdar://17514245
Patch by Anders Carlsson with minor refactoring by me.

llvm-svn: 213423

10 years agoThe subtarget in MipsTargetLowering isn't going to change and
Eric Christopher [Fri, 18 Jul 2014 22:55:25 +0000 (22:55 +0000)]
The subtarget in MipsTargetLowering isn't going to change and
so doesn't need to be a pointer, but a reference.

llvm-svn: 213422

10 years agoAllow the user to override the LLDB_TEST_COMPILER at CMake level.
Zachary Turner [Fri, 18 Jul 2014 22:46:22 +0000 (22:46 +0000)]
Allow the user to override the LLDB_TEST_COMPILER at CMake level.

llvm-svn: 213421

10 years agoAvoid caching the relocation model on the subtarget, this is for
Eric Christopher [Fri, 18 Jul 2014 22:34:20 +0000 (22:34 +0000)]
Avoid caching the relocation model on the subtarget, this is for
two reasons:

a) we're already caching the target machine which contains it,
b) which relocation model you get is dependent upon whether or
not you ask before MCCodeGenInfo is constructed on the target
machine, so avoid any latent issues there.

llvm-svn: 213420

10 years agoRemove commented out code.
Eric Christopher [Fri, 18 Jul 2014 22:34:18 +0000 (22:34 +0000)]
Remove commented out code.

llvm-svn: 213419

10 years agoClean up some style and formatting issues.
Eric Christopher [Fri, 18 Jul 2014 22:34:14 +0000 (22:34 +0000)]
Clean up some style and formatting issues.

llvm-svn: 213418

10 years agoDebugInfo: Assert that all abstract scopes are subprograms, rather than conditionalizing.
David Blaikie [Fri, 18 Jul 2014 22:26:59 +0000 (22:26 +0000)]
DebugInfo: Assert that all abstract scopes are subprograms, rather than conditionalizing.

There's nothing else these should ever be...

llvm-svn: 213417

10 years agoReinstate r213348, reverted in r213395, with an additional bug fix and more
Richard Smith [Fri, 18 Jul 2014 22:13:40 +0000 (22:13 +0000)]
Reinstate r213348, reverted in r213395, with an additional bug fix and more
thorough tests.

Original commit message:

[modules] Fix macro hiding bug exposed if:

 * A submodule of module A is imported into module B
 * Another submodule of module A that is not imported into B exports a macro
 * Some submodule of module B also exports a definition of the macro, and
   happens to be the first submodule of B that imports module A.

In this case, we would incorrectly determine that A's macro redefines B's
macro, and so we don't need to re-export B's macro at all.

This happens with the 'assert' macro in an LLVM self-host. =(

llvm-svn: 213416

10 years agoMerge two lines
Alexey Samsonov [Fri, 18 Jul 2014 21:29:55 +0000 (21:29 +0000)]
Merge two lines

llvm-svn: 213415

10 years agoFix build breakage introduced with r213412.
Mark Heffernan [Fri, 18 Jul 2014 21:29:41 +0000 (21:29 +0000)]
Fix build breakage introduced with r213412.

llvm-svn: 213414

10 years agoTest commit. Having trouble committing from one machine but not
Zachary Turner [Fri, 18 Jul 2014 21:06:51 +0000 (21:06 +0000)]
Test commit.  Having trouble committing from one machine but not
another, attempting to fix it.

llvm-svn: 213413

10 years agoRemove unroll pragma metadata after it is used.
Mark Heffernan [Fri, 18 Jul 2014 21:04:33 +0000 (21:04 +0000)]
Remove unroll pragma metadata after it is used.

llvm-svn: 213412

10 years agoFix a bug with order of operations.
Zachary Turner [Fri, 18 Jul 2014 21:03:06 +0000 (21:03 +0000)]
Fix a bug with order of operations.

llvm-svn: 213411

10 years agoMake lldb -P work on Windows.
Zachary Turner [Fri, 18 Jul 2014 20:36:08 +0000 (20:36 +0000)]
Make lldb -P work on Windows.

lldb -P, which outputs its python path, works by using Host-layer
facilities to get information about the loaded python module.  This
Host functionality was unimplemented on Windows, so this patch
implements it.  Additionally, it removes a pexpect dependency from
the test runner and uses an equivalent invocation of subprocess.

Reviewed by: Todd Fiala

Differential Revision: http://reviews.llvm.org/D4548

llvm-svn: 213410

10 years agoFix a couple of formatting and style issues.
Eric Christopher [Fri, 18 Jul 2014 20:35:49 +0000 (20:35 +0000)]
Fix a couple of formatting and style issues.

llvm-svn: 213409

10 years ago[MCJIT] [AArch64] Make sure to propegate ARM64_RELOC_ADDEND values into the
Lang Hames [Fri, 18 Jul 2014 20:29:36 +0000 (20:29 +0000)]
[MCJIT] [AArch64] Make sure to propegate ARM64_RELOC_ADDEND values into the
RelocationEntry.

No test case yet, as this primarily hits GOT entries, which RuntimeDyldChecker
can't examine yet. I'm actively working on features that will enable us to
test this.

llvm-svn: 213408

10 years agoMake non-module passes unconditionally added in the pass
Eric Christopher [Fri, 18 Jul 2014 20:29:02 +0000 (20:29 +0000)]
Make non-module passes unconditionally added in the pass
manager for mips, and early exit if we don't want to do
anything because of the current subtarget.

llvm-svn: 213407

10 years agoAdd tests for atomic adds on floats.
Eli Bendersky [Fri, 18 Jul 2014 20:11:26 +0000 (20:11 +0000)]
Add tests for atomic adds on floats.

llvm-svn: 213406

10 years agoRevert "CodeGen: Properly null-check typeid expressions"
David Majnemer [Fri, 18 Jul 2014 20:00:13 +0000 (20:00 +0000)]
Revert "CodeGen: Properly null-check typeid expressions"

This reverts commit r213401, r213402, r213403, and r213404.

I accidently committed these changes instead of updating the
differential.

llvm-svn: 213405

10 years agoAddress Richard's latest feedback.
David Majnemer [Fri, 18 Jul 2014 19:53:25 +0000 (19:53 +0000)]
Address Richard's latest feedback.

llvm-svn: 213404

10 years agoAddress Richard's comments
David Majnemer [Fri, 18 Jul 2014 19:53:23 +0000 (19:53 +0000)]
Address Richard's comments

llvm-svn: 213403

10 years agoAddress Richard's comments.
David Majnemer [Fri, 18 Jul 2014 19:53:21 +0000 (19:53 +0000)]
Address Richard's comments.

llvm-svn: 213402

10 years agoCodeGen: Properly null-check typeid expressions
David Majnemer [Fri, 18 Jul 2014 19:53:17 +0000 (19:53 +0000)]
CodeGen: Properly null-check typeid expressions

Summary:
Thoroughly check for a pointer dereference which yields a glvalue.  Look
through casts, comma operators, conditional operators, paren
expressions, etc.

Reviewers: rsmith

Subscribers: cfe-commits

Differential Revision: http://reviews.llvm.org/D4416

llvm-svn: 213401

10 years agoRecommit: Handle diagnostic warnings in Frontend diagnostic handler.
Tyler Nowicki [Fri, 18 Jul 2014 19:40:19 +0000 (19:40 +0000)]
Recommit: Handle diagnostic warnings in Frontend diagnostic handler.

Clang uses a diagnostic handler to grab diagnostic messages so it can print them
with the line of source code they refer to. This patch extends this to handle
optimization failures that were added to llvm to produce a warning when
loop vectorization is explicitly specified (using a pragma clang loop directive)
but fails.

Update renames warning flag name to avoid indicating the flag's severity and
adds a test.

Reviewed by Alp Toker

llvm-svn: 213400

10 years agoRename DiagnosticInfoOptimizationWarning to DiagnosticInfoOptimizationFailure
Tyler Nowicki [Fri, 18 Jul 2014 19:36:04 +0000 (19:36 +0000)]
Rename DiagnosticInfoOptimizationWarning to DiagnosticInfoOptimizationFailure
so the severity of the message is not part of the type name.

Reviewed by Alp Toker

llvm-svn: 213399

10 years agoUse CHECK-LABEL where appropriate in this test.
Eli Bendersky [Fri, 18 Jul 2014 19:32:09 +0000 (19:32 +0000)]
Use CHECK-LABEL where appropriate in this test.

llvm-svn: 213398

10 years agoAdd loop unrolling metadata descriptions to docs/LangRef.rst.
Mark Heffernan [Fri, 18 Jul 2014 19:24:51 +0000 (19:24 +0000)]
Add loop unrolling metadata descriptions to docs/LangRef.rst.

llvm-svn: 213397

10 years agoMergedLoadStoreMotion pass
Gerolf Hoflehner [Fri, 18 Jul 2014 19:13:09 +0000 (19:13 +0000)]
MergedLoadStoreMotion pass

Merges equivalent loads on both sides of a hammock/diamond
and hoists into into the header.
Merges equivalent stores on both sides of a hammock/diamond
and sinks it to the footer.
Can enable if conversion and tolerate better load misses
and store operand latencies.

llvm-svn: 213396

10 years agoRevert "[modules] Fix macro hiding bug exposed if:"
Ben Langmuir [Fri, 18 Jul 2014 18:38:24 +0000 (18:38 +0000)]
Revert "[modules] Fix macro hiding bug exposed if:"

This is breaking the system modules on Darwin, because something that
was defined and re-exported no longer is.  Might be this patch, or might
just be a really poor interaction with an existing visibility bug.

This reverts commit r213348.

llvm-svn: 213395

10 years agoFixing warnings shouldn't introduce a crasher.
Greg Clayton [Fri, 18 Jul 2014 18:32:45 +0000 (18:32 +0000)]
Fixing warnings shouldn't introduce a crasher.

Fix the warning the correct way without making things crash when ENABLE_MUTEX_ERROR_CHECKING is non enabled.

<rdar://problem/17703039>

llvm-svn: 213394

10 years ago[UBsan] Skip -fsanitize=vptr instrumentations when the pointer value is null.
Alexey Samsonov [Fri, 18 Jul 2014 18:15:39 +0000 (18:15 +0000)]
[UBsan] Skip -fsanitize=vptr instrumentations when the pointer value is null.

Otherwise -fsanitize=vptr causes the program to crash when it downcasts
a null pointer.

Reviewed in http://reviews.llvm.org/D4412.
Patch by Byoungyoung Lee!

llvm-svn: 213393

10 years agoMake sure globals created by UBSan are not instrumented by ASan.
Alexey Samsonov [Fri, 18 Jul 2014 17:50:06 +0000 (17:50 +0000)]
Make sure globals created by UBSan are not instrumented by ASan.

Summary:
This change adds description of globals created by UBSan
instrumentation (UBSan handlers, type descriptors, filenames) to
llvm.asan.globals metadata, effectively "blacklisting" them. This can
dramatically decrease the data section in binaries built with UBSan+ASan,
as UBSan tends to create a lot of handlers, and ASan instrumentation
increases the global size to at least 64 bytes.

Test Plan: clang regression test suite

Reviewers: rsmith

Reviewed By: rsmith

Subscribers: cfe-commits, byoungyoung, kcc

Differential Revision: http://reviews.llvm.org/D4575

llvm-svn: 213392

10 years agoReapply "DebugInfo: Ensure that all debug location scope chains from instructions...
David Blaikie [Fri, 18 Jul 2014 17:49:10 +0000 (17:49 +0000)]
Reapply "DebugInfo: Ensure that all debug location scope chains from instructions within a function, lead to the function itself."""

Recommits 212776 which was reverted in r212793. This has been committed
and recommitted a few times as I try to test it harder and find/fix more
issues. The most recent revert was due to an asan bot failure which I
can't seem to reproduce locally, though I believe I'm following all the
steps the buildbot does.

So I'm going to recommit this in the hopes of investigating the failure
on the buildbot itself... apologies in advance for the bot noise. If
anyone sees failures with this /please/ provide me with any
reproductions, etc.

llvm-svn: 213391

10 years ago[Mips] Replace assembler code by YAML to make the test 'base-address.test'
Simon Atanasyan [Fri, 18 Jul 2014 17:23:21 +0000 (17:23 +0000)]
[Mips] Replace assembler code by YAML to make the test 'base-address.test'
target independent.

llvm-svn: 213390

10 years agoFix build failure on windows
David Peixotto [Fri, 18 Jul 2014 16:41:58 +0000 (16:41 +0000)]
Fix build failure on windows

Add explicit constructor to struct instead of using brace initialization.

llvm-svn: 213389

10 years agoFor i386, gcc 4.9 under Debian (at least) updated its paths to i586-linux-gnu
Sylvestre Ledru [Fri, 18 Jul 2014 16:24:57 +0000 (16:24 +0000)]
For i386, gcc 4.9 under Debian (at least) updated its paths to i586-linux-gnu
(i486-linux-gnu previously). Adding this triple to the list of search.
Also impacts clang 3.4.2

Reported on the Debian bug tracking system here:
http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=754963
http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=755183

llvm-svn: 213388

10 years agoMC: support different sized constants in constant pools
David Peixotto [Fri, 18 Jul 2014 16:05:14 +0000 (16:05 +0000)]
MC: support different sized constants in constant pools

On AArch64 the pseudo instruction ldr <reg>, =... supports both
32-bit and 64-bit constants. Add support for 64 bit constants for
the pools to support the pseudo instruction fully.

Changes the AArch64 ldr-pseudo tests to use 32-bit registers and
adds tests with 64-bit registers.

Patch by Janne Grunau!

Differential Revision: http://reviews.llvm.org/D4279

llvm-svn: 213387

10 years agoMark C++ reference parameters as dereferenceable
Hal Finkel [Fri, 18 Jul 2014 15:52:10 +0000 (15:52 +0000)]
Mark C++ reference parameters as dereferenceable

Because references must be initialized using some evaluated expression, they
must point to something, and a callee can assume the reference parameter is
dereferenceable. Taking advantage of a new attribute just added to LLVM, mark
them as such.

Because dereferenceability in addrspace(0) implies nonnull in the backend, we
don't need both attributes. However, we need to know the size of the object to
use the dereferenceable attribute, so for incomplete types we still emit only
nonnull.

llvm-svn: 213386

10 years agoAdd a dereferenceable attribute
Hal Finkel [Fri, 18 Jul 2014 15:51:28 +0000 (15:51 +0000)]
Add a dereferenceable attribute

This attribute indicates that the parameter or return pointer is
dereferenceable. Practically speaking, loads from such a pointer within the
associated byte range are safe to speculatively execute. Such pointer
parameters are common in source languages (C++ references, for example).

llvm-svn: 213385

10 years agotsan: fix Go runtime build with clang
Dmitry Vyukov [Fri, 18 Jul 2014 15:32:22 +0000 (15:32 +0000)]
tsan: fix Go runtime build with clang

llvm-svn: 213384

10 years ago[mips] Use Triple::getVendor() instead of Triple::getVendorName() to identify 'mti...
Daniel Sanders [Fri, 18 Jul 2014 15:05:38 +0000 (15:05 +0000)]
[mips] Use Triple::getVendor() instead of Triple::getVendorName() to identify 'mti' vendor triples.

llvm-svn: 213383

10 years agotsan: expose atomic operations in Go runtime
Dmitry Vyukov [Fri, 18 Jul 2014 14:54:02 +0000 (14:54 +0000)]
tsan: expose atomic operations in Go runtime

llvm-svn: 213382

10 years agoAdd MIPS Technologies to the vendors in llvm::Triple.
Daniel Sanders [Fri, 18 Jul 2014 14:28:19 +0000 (14:28 +0000)]
Add MIPS Technologies to the vendors in llvm::Triple.

This is a prerequisite for checking for 'mti' and 'img' in a consistent way in
clang. Previously 'img' could use Triple::getVendor() but 'mti' could only use
Triple::getVendorName().

llvm-svn: 213381

10 years agoRevert "Emit lifetime.start / lifetime.end markers for unnamed temporary objects."
Arnaud A. de Grandmaison [Fri, 18 Jul 2014 14:23:58 +0000 (14:23 +0000)]
Revert "Emit lifetime.start / lifetime.end markers for unnamed temporary objects."

This reverts commit dbf785a6432f78a8ec229665876647c4cc610d3d, while I qm
investigating a buildbot failure.

llvm-svn: 213380

10 years agoEmit lifetime.start / lifetime.end markers for unnamed temporary objects.
Arnaud A. de Grandmaison [Fri, 18 Jul 2014 13:36:33 +0000 (13:36 +0000)]
Emit lifetime.start / lifetime.end markers for unnamed temporary objects.

This will give more information to the optimizers so that they can reuse stack slots.

llvm-svn: 213379

10 years agoAArch64: implement efficient f16 bitcasts
Tim Northover [Fri, 18 Jul 2014 13:07:05 +0000 (13:07 +0000)]
AArch64: implement efficient f16 bitcasts

Because i16 is illegal, there's no native DAG method to
represent a bitcast to or from an f16 type. This meant LLVM was
inserting a stack store/load pair which is really not ideal.

llvm-svn: 213378

10 years agoNVPTX: support fpext/fptrunc to and from f16.
Tim Northover [Fri, 18 Jul 2014 13:01:43 +0000 (13:01 +0000)]
NVPTX: support fpext/fptrunc to and from f16.

llvm-svn: 213377

10 years agoR600: support fpext/fptrunc operations to and from f16.
Tim Northover [Fri, 18 Jul 2014 13:01:37 +0000 (13:01 +0000)]
R600: support fpext/fptrunc operations to and from f16.

llvm-svn: 213376

10 years agoAArch64: support f16 extend/trunc operations.
Tim Northover [Fri, 18 Jul 2014 13:01:31 +0000 (13:01 +0000)]
AArch64: support f16 extend/trunc operations.

llvm-svn: 213375

10 years agoX86: support fpext/fptrunc operations to and from 16-bit floats.
Tim Northover [Fri, 18 Jul 2014 13:01:25 +0000 (13:01 +0000)]
X86: support fpext/fptrunc operations to and from 16-bit floats.

llvm-svn: 213374

10 years agoARM: support legalisation of "fptrunc ... to half" operations.
Tim Northover [Fri, 18 Jul 2014 13:01:19 +0000 (13:01 +0000)]
ARM: support legalisation of "fptrunc ... to half" operations.

llvm-svn: 213373

10 years agoCodeGen: soften f16 type by default instead of marking legal.
Tim Northover [Fri, 18 Jul 2014 12:41:46 +0000 (12:41 +0000)]
CodeGen: soften f16 type by default instead of marking legal.

Actual support for softening f16 operations is still limited, and can be added
when it's needed.  But Soften is much closer to being a useful thing to try
than keeping it Legal when no registers can actually hold such values.

Longer term, we probably want something between Soften and Promote semantics
for most targets, it'll be more efficient to promote the 4 basic operations to
f32 than libcall them.

llvm-svn: 213372

10 years agoSuppress 'not handled in switch' warning
Renato Golin [Fri, 18 Jul 2014 12:13:04 +0000 (12:13 +0000)]
Suppress 'not handled in switch' warning

llvm-svn: 213371

10 years agoAdd FreeBSD support to the Asan symbolization script
Viktor Kutuzov [Fri, 18 Jul 2014 12:07:00 +0000 (12:07 +0000)]
Add FreeBSD support to the Asan symbolization script
Differential Revision: http://reviews.llvm.org/D4560

llvm-svn: 213370

10 years ago[ARM] Add earlyclobber constraint to pre/post-indexed ARM STR instructions.
Tilmann Scheller [Fri, 18 Jul 2014 12:05:49 +0000 (12:05 +0000)]
[ARM] Add earlyclobber constraint to pre/post-indexed ARM STR instructions.

The post-indexed instructions were missing the constraint, causing unpredictable STR instructions to be emitted.

The earlyclobber constraint on the pre-indexed STR instructions is not strictly necessary, as the instruction selection for pre-indexed STR instructions goes through an additional layer of pseudo instructions which have the constraint defined, however it doesn't hurt to specify the constraint directly on the pre-indexed instructions as well, since at some point someone might create instances of them programmatically and then the constraint is definitely needed.

This fixes PR20323.

llvm-svn: 213369

10 years agoAdd FreeBSD support to the address sanitizer's waitid.cc test case
Viktor Kutuzov [Fri, 18 Jul 2014 12:02:42 +0000 (12:02 +0000)]
Add FreeBSD support to the address sanitizer's waitid.cc test case
Differential Revision: http://reviews.llvm.org/D4422

llvm-svn: 213368

10 years agoRefactor ARM subarchitecture parsing
Renato Golin [Fri, 18 Jul 2014 12:00:48 +0000 (12:00 +0000)]
Refactor ARM subarchitecture parsing

Re-commit of a patch to rework the triple parsing on ARM to a more sane
model.

Patch by Gabor Ballabas.

llvm-svn: 213367

10 years agoUse PRIx64.
Joerg Sonnenberger [Fri, 18 Jul 2014 11:58:19 +0000 (11:58 +0000)]
Use PRIx64.

llvm-svn: 213366

10 years agoMoved 25 flags to clang_ignored_gcc_optimization_f_Group. Will display a warning
Arthur Marble [Fri, 18 Jul 2014 11:38:58 +0000 (11:38 +0000)]
Moved 25 flags to clang_ignored_gcc_optimization_f_Group. Will display a warning
to the user if they try to pass those optimizations. The revision for this patch
is here: http://reviews.llvm.org/D4474. This patch will fix many errors in the
rebuild of Debian with clang. Here is a link to the page for unknown arguments:
http://clang.debian.net/status.php?version=3.4.2&key=UNKNOWN_ARG

llvm-svn: 213365

10 years agoARM: Add test for ACLE memory barrier intrinsics
Yi Kong [Fri, 18 Jul 2014 10:36:37 +0000 (10:36 +0000)]
ARM: Add test for ACLE memory barrier intrinsics

Add an additional test to ensure that someone doesn't accidentally
change the definitions such that they can take a non-constant value.

llvm-svn: 213364

10 years ago[OPENMP] Initial parsing and sema analysis for 'taskwait' directive.
Alexey Bataev [Fri, 18 Jul 2014 10:17:07 +0000 (10:17 +0000)]
[OPENMP] Initial parsing and sema analysis for 'taskwait' directive.

llvm-svn: 213363

10 years agoswapStruct extracted into include/llvm/Support/MachO.h (no functional change)
Artyom Skrobov [Fri, 18 Jul 2014 09:28:10 +0000 (09:28 +0000)]
swapStruct extracted into include/llvm/Support/MachO.h (no functional change)

llvm-svn: 213362

10 years agoextracting swapStruct into include/llvm/Support/MachO.h (no functional change)
Artyom Skrobov [Fri, 18 Jul 2014 09:26:16 +0000 (09:26 +0000)]
extracting swapStruct into include/llvm/Support/MachO.h (no functional change)

llvm-svn: 213361

10 years ago[OPENMP] Initial parsing and sema analysis for 'barrier' directive.
Alexey Bataev [Fri, 18 Jul 2014 09:11:51 +0000 (09:11 +0000)]
[OPENMP] Initial parsing and sema analysis for 'barrier' directive.

llvm-svn: 213360

10 years ago[ARM] Fix AAPCS regression caused by r211898
Oliver Stannard [Fri, 18 Jul 2014 09:09:31 +0000 (09:09 +0000)]
[ARM] Fix AAPCS regression caused by r211898

r211898 introduced a regression where a large struct, which would
normally be passed ByVal, was causing padding to be inserted to
prevent the backend from using some GPRs, in order to follow the
AAPCS. However, the type of the argument was not being set correctly,
so the backend cannot align 8-byte aligned struct types on the stack.

The fix is to not insert the padding arguments when the argument is
being passed ByVal.

llvm-svn: 213359

10 years agoR600: rename misleading fp16 test.
Tim Northover [Fri, 18 Jul 2014 08:43:30 +0000 (08:43 +0000)]
R600: rename misleading fp16 test.

This test is actually going in the opposite direction to what the
filename and function name suggested.

llvm-svn: 213358

10 years agoR600: support f16 -> f64 conversion intrinsic.
Tim Northover [Fri, 18 Jul 2014 08:43:24 +0000 (08:43 +0000)]
R600: support f16 -> f64 conversion intrinsic.

Unfortunately, we don't seem to have a direct truncation, but the
extension can be legally split into two operations so we should
support that.

llvm-svn: 213357

10 years agoNVPTX: support direct f16 <-> f64 conversions via intrinsics.
Tim Northover [Fri, 18 Jul 2014 08:30:10 +0000 (08:30 +0000)]
NVPTX: support direct f16 <-> f64 conversions via intrinsics.

Clang may well start emitting these soon, and while it may not be
directly relevant for OpenCL or GLSL, the instructions were just
sitting there waiting to be used.

llvm-svn: 213356

10 years ago[OPENMP] Initial parsing and sema analysis of 'taskyield' directive.
Alexey Bataev [Fri, 18 Jul 2014 07:47:19 +0000 (07:47 +0000)]
[OPENMP] Initial parsing and sema analysis of 'taskyield' directive.

llvm-svn: 213355

10 years agoUse the designated PYTHON_EXECUTABLE during build.
Zachary Turner [Fri, 18 Jul 2014 07:06:13 +0000 (07:06 +0000)]
Use the designated PYTHON_EXECUTABLE during build.

We were hardcoding "python" as the command to run the swig wrapper
scripts.  We should be using PYTHON_EXECUTABLE instead.

llvm-svn: 213354

10 years ago[AArch64] Implement Clang CLI interface proposal about "-march".
Kevin Qin [Fri, 18 Jul 2014 07:03:22 +0000 (07:03 +0000)]
[AArch64] Implement Clang CLI interface proposal about "-march".

1. Revert "Add default feature for CPUs on AArch64 target in Clang"
at r210625. Then, all enabled feature will by passed explicitly by
-target-feature in -cc1 option.

2. Get "-mfpu" deprecated.

3. Implement support of "-march". Usage is:
    -march=armv8-a+[no]feature
  For instance, "-march=armv8-a+neon+crc+nocrypto". Here "armv8-a" is
  necessary, and CPU names are not acceptable. Candidate features are
  fp, neon, crc and crypto. Where conflicting feature modifiers are
  specified, the right-most feature is used.

4. Implement support of "-mtune". Usage is:
    -march=CPU_NAME
  For instance, "-march=cortex-a57". This option will ONLY get
  micro-architectural feature enabled specifying to target CPU,
  like "+zcm" and "+zcz" for cyclone. Any architectural features
  WON'T be modified.

5. Change usage of "-mcpu" to "-mcpu=CPU_NAME+[no]feature", which is
  an alias to "-march={feature of CPU_NAME}+[no]feature" and
  "-mtune=CPU_NAME" together. Where this option is used in conjunction
  with -march or -mtune, those options take precedence over the
  appropriate part of this option.

llvm-svn: 213353

10 years agoRename AlignAttribute to IntAttribute
Hal Finkel [Fri, 18 Jul 2014 06:51:55 +0000 (06:51 +0000)]
Rename AlignAttribute to IntAttribute

Currently the only kind of integer IR attributes that we have are alignment
attributes, and so the attribute kind that takes an integer parameter is called
AlignAttr, but that will change (we'll soon be adding a dereferenceable
attribute that also takes an integer value). Accordingly, rename AlignAttribute
to IntAttribute (class names, enums, etc.).

No functionality change intended.

llvm-svn: 213352

10 years agoR600: Implement TTI:getPopcntSupport
Matt Arsenault [Fri, 18 Jul 2014 06:07:13 +0000 (06:07 +0000)]
R600: Implement TTI:getPopcntSupport

The test is just copied from X86, and I don't know of a better
way to test it.

llvm-svn: 213351

10 years agoParse: Diagnose malformed 'message' arguments for 'availability' attr
David Majnemer [Fri, 18 Jul 2014 05:43:12 +0000 (05:43 +0000)]
Parse: Diagnose malformed 'message' arguments for 'availability' attr

The parsing code for 'availability' wasn't prepared for string literals
like "a" L"b" showing up.  Error if this occurs.

llvm-svn: 213350

10 years agoAdd dump() for MacroDirective and MacroInfo.
Richard Smith [Fri, 18 Jul 2014 04:54:02 +0000 (04:54 +0000)]
Add dump() for MacroDirective and MacroInfo.

llvm-svn: 213349

10 years ago[modules] Fix macro hiding bug exposed if:
Richard Smith [Fri, 18 Jul 2014 04:53:37 +0000 (04:53 +0000)]
[modules] Fix macro hiding bug exposed if:

 * A submodule of module A is imported into module B
 * Another submodule of module A that is not imported into B exports a macro
 * Some submodule of module B also exports a definition of the macro, and
   happens to be the first submodule of B that imports module A.

In this case, we would incorrectly determine that A's macro redefines B's
macro, and so we don't need to re-export B's macro at all.

This happens with the 'assert' macro in an LLVM self-host. =(

llvm-svn: 213348

10 years agoCleanup: remove essentially unused variable.
Richard Smith [Fri, 18 Jul 2014 04:47:25 +0000 (04:47 +0000)]
Cleanup: remove essentially unused variable.

llvm-svn: 213347

10 years agoMark the vtable used when defining implicit copy and move ctors
Reid Kleckner [Fri, 18 Jul 2014 01:48:10 +0000 (01:48 +0000)]
Mark the vtable used when defining implicit copy and move ctors

I don't think other implicit members like copy assignment and move
assignment require this treatment, because they should already be
operating on a constructed object.

Fixes PR20351.

llvm-svn: 213346

10 years agoSemaInit.cpp: Fix a warning with -Asserts. [-Wunused-variable]
NAKAMURA Takumi [Fri, 18 Jul 2014 01:26:35 +0000 (01:26 +0000)]
SemaInit.cpp: Fix a warning with -Asserts. [-Wunused-variable]

llvm-svn: 213345

10 years ago[mach-o] Add support for x86 pointers which use scattered relocations
Nick Kledzik [Fri, 18 Jul 2014 01:05:35 +0000 (01:05 +0000)]
[mach-o] Add support for x86 pointers which use scattered relocations

llvm-svn: 213344

10 years agoFixes a number of issue related to test portability on Windows.
Zachary Turner [Fri, 18 Jul 2014 01:02:02 +0000 (01:02 +0000)]
Fixes a number of issue related to test portability on Windows.

99% of this CL is simply moving calls to "import pexpect" to a more
narrow scope - i.e. the function that actually runs a particular
test.  This way the test suite can run on Windows, which doesn't have
pexpect, and the individual tests that use pexpect can be disabled on
a platform-specific basis.

Additionally, this CL fixes a few other cases of non-portability.
Notably, using "ps" to get the command line, and os.uname() to
determine the architecture don't work on Windows.  Finally, this
also adds a stubbed out builder_win32 module.

The full test suite runs correctly on Windows after this CL, although
there is still some work remaining on the C++ side to fix one-shot
script commands from LLDB (e.g. script print "foo"), which currently
deadlock.

Reviewed by: Todd Fiala

Differential Revision: http://reviews.llvm.org/D4573

llvm-svn: 213343

10 years agoX86: Constant fold converting vector setcc results to float.
Jim Grosbach [Fri, 18 Jul 2014 00:40:56 +0000 (00:40 +0000)]
X86: Constant fold converting vector setcc results to float.

Since the result of a SETCC for X86 is 0 or -1 in each lane, we can
move unary operations, in this case [su]int_to_fp through the mask
operation and constant fold the operation away. Generally speaking:
  UNARYOP(AND(VECTOR_CMP(x,y), constant))
      --> AND(VECTOR_CMP(x,y), constant2)
where constant2 is UNARYOP(constant).

This implements the transform where UNARYOP is [su]int_to_fp.

For example, consider the simple function:
define <4 x float> @foo(<4 x float> %val, <4 x float> %test) nounwind {
  %cmp = fcmp oeq <4 x float> %val, %test
  %ext = zext <4 x i1> %cmp to <4 x i32>
  %result = sitofp <4 x i32> %ext to <4 x float>
  ret <4 x float> %result
}

Before this change, the SSE code is generated as:
LCPI0_0:
  .long 1                       ## 0x1
  .long 1                       ## 0x1
  .long 1                       ## 0x1
  .long 1                       ## 0x1
  .section  __TEXT,__text,regular,pure_instructions
  .globl  _foo
  .align  4, 0x90
_foo:                                   ## @foo
  cmpeqps %xmm1, %xmm0
  andps LCPI0_0(%rip), %xmm0
  cvtdq2ps  %xmm0, %xmm0
  retq

After, the code is improved to:
LCPI0_0:
  .long 1065353216              ## float 1.000000e+00
  .long 1065353216              ## float 1.000000e+00
  .long 1065353216              ## float 1.000000e+00
  .long 1065353216              ## float 1.000000e+00
  .section  __TEXT,__text,regular,pure_instructions
  .globl  _foo
  .align  4, 0x90
_foo:                                   ## @foo
  cmpeqps %xmm1, %xmm0
  andps LCPI0_0(%rip), %xmm0
  retq

The cvtdq2ps has been constant folded away and the floating point 1.0f
vector lanes are materialized directly via the ModRM operand of andps.

llvm-svn: 213342

10 years agoAArch64: Constant fold converting vector setcc results to float.
Jim Grosbach [Fri, 18 Jul 2014 00:40:52 +0000 (00:40 +0000)]
AArch64: Constant fold converting vector setcc results to float.

Since the result of a SETCC for AArch64 is 0 or -1 in each lane, we can
move unary operations, in this case [su]int_to_fp through the mask
operation and constant fold the operation away. Generally speaking:
  UNARYOP(AND(VECTOR_CMP(x,y), constant))
      --> AND(VECTOR_CMP(x,y), constant2)
where constant2 is UNARYOP(constant).

This implements the transform where UNARYOP is [su]int_to_fp.

For example, consider the simple function:
define <4 x float> @foo(<4 x float> %val, <4 x float> %test) nounwind {
  %cmp = fcmp oeq <4 x float> %val, %test
  %ext = zext <4 x i1> %cmp to <4 x i32>
  %result = sitofp <4 x i32> %ext to <4 x float>
  ret <4 x float> %result
}

Before this change, the code is generated as:
  fcmeq.4s  v0, v0, v1
  movi.4s v1, #0x1        // Integer splat value.
  and.16b v0, v0, v1      // Mask lanes based on the comparison.
  scvtf.4s  v0, v0        // Convert each lane to f32.
  ret

After, the code is improved to:
  fcmeq.4s  v0, v0, v1
  fmov.4s v1, #1.00000000 // f32 splat value.
  and.16b v0, v0, v1      // Mask lanes based on the comparison.
  ret

The svvtf.4s has been constant folded away and the floating point 1.0f
vector lanes are materialized directly via fmov.4s.

Rather than do the folding manually in the target code, teach getNode()
in the generic SelectionDAG to handle folding constant operands of
vector [su]int_to_fp nodes. It is reasonable (as noted in a FIXME) to do
additional constant folding there as well, but I don't have test cases
for those operations, so leaving them for another time when it becomes
appropriate.

rdar://17693791

llvm-svn: 213341

10 years ago[mach-o] Add support for x86 CALL instruction that uses a scattered relocation
Nick Kledzik [Fri, 18 Jul 2014 00:37:52 +0000 (00:37 +0000)]
[mach-o] Add support for x86 CALL instruction that uses a scattered relocation

llvm-svn: 213340

10 years agoRevert "[x86] Fold extract_vector_elt of a load into the Load's address computation."
Michael J. Spencer [Fri, 18 Jul 2014 00:15:50 +0000 (00:15 +0000)]
Revert "[x86] Fold extract_vector_elt of a load into the Load's address computation."

There's a bug where this can create cycles in the DAG. It will take a bit
to fix, so I'm backing it out for now.

llvm-svn: 213339

10 years agoFix parsing certain kinds of strings in the MS section pragmas
Reid Kleckner [Fri, 18 Jul 2014 00:13:16 +0000 (00:13 +0000)]
Fix parsing certain kinds of strings in the MS section pragmas

We were crashing on the relevant test case inputs.  Also, refactor this
code a bit so we can report failure and slurp the pragma tokens without
returning a diagnostic id.  This is more consistent with the rest of the
parser and sema code.

llvm-svn: 213337

10 years agoReset the Subtarget in the AsmPrinter for each machine function
Eric Christopher [Fri, 18 Jul 2014 00:08:53 +0000 (00:08 +0000)]
Reset the Subtarget in the AsmPrinter for each machine function
and add explanatory comment about dual initialization. Fix
use of the Subtarget to grab the information off of the target machine.

llvm-svn: 213336

10 years agoAvoid resetting the UseSoftFloat and FloatABIType on the TargetMachine
Eric Christopher [Fri, 18 Jul 2014 00:08:50 +0000 (00:08 +0000)]
Avoid resetting the UseSoftFloat and FloatABIType on the TargetMachine
Options struct and move the comment to inMips16HardFloat. Use the
fact that we now know whether or not we cared about soft float to
set the libcalls.
Accordingly rename mipsSEUsesSoftFloat to abiUsesSoftFloat and
propagate since it's no longer CPU specific.

llvm-svn: 213335

10 years agoCheck-labelize ubsan tests
Alexey Samsonov [Thu, 17 Jul 2014 23:53:44 +0000 (23:53 +0000)]
Check-labelize ubsan tests

llvm-svn: 213334

10 years ago[mach-o] implement more x86 and x86_64 relocation support
Nick Kledzik [Thu, 17 Jul 2014 23:16:21 +0000 (23:16 +0000)]
[mach-o] implement more x86 and x86_64 relocation support

Add support for adding section relocations in -r mode.  Enhance the test
cases which validate the parsing of .o files to also round trip.  They now
write out the .o file and then parse that, verifying all relocations survived
the round trip.

llvm-svn: 213333