Matt Arsenault [Sat, 19 Jul 2014 18:44:39 +0000 (18:44 +0000)]
R600/SI: implement range reduction for sin/cos
These instructions can only take a limited input range, and return
the constant value 1 out of range. We should do range reduction to
be able to process arbitrary values. Use a FRACT instruction after
normalization to achieve this. Also add a test for constant folding
with the lowered code with unsafe-fp-math enabled.
v2: use DAG lowering instead of intrinsic, adapt test
v3: calculate constant, fold pattern into instruction definition
v4: misc style fixes, add sin-fold testcase, cosmetics
Patch by Grigori Goronzy
llvm-svn: 213458
Matt Arsenault [Sat, 19 Jul 2014 18:40:17 +0000 (18:40 +0000)]
Update for RegionInfo changes.
Mostly related to missing includes and renaming of
the pass to RegionInfoPass.
llvm-svn: 213457
Matt Arsenault [Sat, 19 Jul 2014 18:29:29 +0000 (18:29 +0000)]
Templatify RegionInfo so it works on MachineBasicBlocks
llvm-svn: 213456
Matt Arsenault [Sat, 19 Jul 2014 18:15:16 +0000 (18:15 +0000)]
R600: Implement a few simple TTI queries.
I'm not sure if these have any effect right now.
llvm-svn: 213455
Ben Langmuir [Sat, 19 Jul 2014 16:29:28 +0000 (16:29 +0000)]
If a module build reports errors, don't try to load it
... just to find out that it didn't build.
llvm-svn: 213454
Hal Finkel [Sat, 19 Jul 2014 13:39:45 +0000 (13:39 +0000)]
[LoopVectorize] Use CreateAligned(Load|Store)
IRBuilder has CreateAligned(Load|Store) functions; use them and we don't need
to make a second call to setAlignment.
No functionality change intended.
llvm-svn: 213453
Hal Finkel [Sat, 19 Jul 2014 13:33:16 +0000 (13:33 +0000)]
[LoopVectorize] Propagate known metadata to vectorized instructions
There are some kinds of metadata that are safe to propagate from the scalar
instructions to the vector instructions (fpmath and tbaa currently).
Regarding TBAA, one might worry about propagating it on if-converted loads and
stores, because the metadata might have had a control dependency on the
condition, and thus actually aliased with some other non-speculated memory
access when the condition was false. However, this would be caught by the
runtime overlap checks.
llvm-svn: 213452
Andrea Di Biagio [Sat, 19 Jul 2014 07:52:58 +0000 (07:52 +0000)]
[x86] Fix wrong shuffle mask in test 'combine-vec-shuffle-3.ll'. No functional change.
Function @test3c should check that the DAGCombiner is able to fold a pair of
shuffles into a new shuffle with a permute mask of <6,7,2,3>. However, one of
the shuffles in @test3c had a wrong permute mask; this prevented the DAGCombiner
from folding the shuffles into the expected result.
Now that the shuffle mask is fixed, the backend correctly folds the two shuffles
in function @test3c into a single movhlps instruction.
llvm-svn: 213451
Viktor Kutuzov [Sat, 19 Jul 2014 05:58:38 +0000 (05:58 +0000)]
Revert D3908 due to issues on Mac platforms
llvm-svn: 213450
Hal Finkel [Sat, 19 Jul 2014 03:32:02 +0000 (03:32 +0000)]
Handle AddrSpaceCast in stripAndAccumulateInBoundsConstantOffsets
All of the other similar functions in that part of the file look through
addrspacecast in addition to bitcast, and I see no reason why
stripAndAccumulateInBoundsConstantOffsets shouldn't do so also.
llvm-svn: 213449
NAKAMURA Takumi [Sat, 19 Jul 2014 03:29:25 +0000 (03:29 +0000)]
MergedLoadStoreMotion.cpp: Fix msc17 build. Member initializer is unavailable.
llvm-svn: 213448
Hal Finkel [Sat, 19 Jul 2014 03:25:16 +0000 (03:25 +0000)]
Make Value::isDereferenceablePointer handle offsets to pointer types with dereferenceable attributes
When we have a parameter (or call site return) with a dereferenceable
attribute, it can specify the size of an array pointed to by that parameter. If
we have a value for which we can accumulate a constant offset to such a
parameter, then we can use that offset in a direct comparison with the size
specified by the dereferenceable attribute.
This enables us to handle cases like this:
int foo(int a[static 3]) {
return a[2]; /* this is always dereferenceable */
}
llvm-svn: 213447
Hal Finkel [Sat, 19 Jul 2014 02:13:40 +0000 (02:13 +0000)]
Cleanup comparisons to VariableArrayType::Static for non-VLAs
The enum is part of ArrayType, so there is no functional change, but comparing
to ArrayType::Static for non-VLAs makes more sense.
llvm-svn: 213446
Hal Finkel [Sat, 19 Jul 2014 02:01:03 +0000 (02:01 +0000)]
TypePrinter should not ignore IndexTypeCVRQualifiers on constant-sized arrays
C99 array parameters can have index-type CVR qualifiers, and the TypePrinter
should print them when present (and we were not for constant-sized arrays).
Otherwise, we'd drop the restrict in:
int foo(int a[restrict static 3]) { ... }
llvm-svn: 213445
Hal Finkel [Sat, 19 Jul 2014 01:41:07 +0000 (01:41 +0000)]
Use the dereferenceable attribute on C99 array parameters with static
In C99, an array parameter declarator might have the form:
direct-declarator '[' 'static' type-qual-list[opt] assign-expr ']'
where the static keyword indicates that the caller will always provide a
pointer to the beginning of an array with at least the number of elements
specified by the assignment expression. For constant sizes, we can use the
new dereferenceable attribute to pass this information to the optimizer. For
VLAs, we don't know the size, but (for addrspace(0)) do know that the pointer
must be nonnull (and so we can use the nonnull attribute).
llvm-svn: 213444
Richard Smith [Sat, 19 Jul 2014 01:39:17 +0000 (01:39 +0000)]
PR20356: Fix all Sema warnings with mismatched ext_/warn_ versus
ExtWarn/Warnings. Mostly the name of the warning was changed to match the
semantics, but in the PR20356 cases, the warning was about valid code, so the
diagnostic was changed from ExtWarn to Warning instead.
llvm-svn: 213443
Saleem Abdulrasool [Sat, 19 Jul 2014 01:29:51 +0000 (01:29 +0000)]
ARM: correct WoA __builtin_alloca handling on O0
When performing a dynamic stack adjustment without optimisations, we would mark
SP as def and R4 as kill. This occurred as part of the expansion of a
WIN__CHKSTK SDNode which indicated the proper handling of SP and R4. The result
would be that we would double define SP as part of an operation, which is
obviously incorrect.
Furthermore, the VTList for the chain had an incorrect parameter type of i32
instead of Other.
Correct these to permit proper lowering of __builtin_alloca at -O0.
llvm-svn: 213442
NAKAMURA Takumi [Sat, 19 Jul 2014 01:17:32 +0000 (01:17 +0000)]
clang/test/Misc/backend-optimization-failure.cpp: Appease to add -triple=x86_64.
FIXME: Could this be made generic?
llvm-svn: 213441
Jim Ingham [Sat, 19 Jul 2014 01:09:16 +0000 (01:09 +0000)]
Add the ability to suppress the creation of a persistent
result variable and use in in "Process::LoadImage" so that,
for instance, "process load" doesn't increment the return
variable number.
llvm-svn: 213440
David Blaikie [Sat, 19 Jul 2014 01:06:45 +0000 (01:06 +0000)]
Remove uses of the redundant ".reset(nullptr)" of unique_ptr, in favor of ".reset()"
It's also possible to just write "= nullptr", but there's some question
of whether that's as readable, so I leave it up to authors to pick which
they prefer for now. If we want to discuss standardizing on one or the
other, we can do that at some point in the future.
llvm-svn: 213439
David Blaikie [Sat, 19 Jul 2014 01:05:11 +0000 (01:05 +0000)]
Remove uses of the redundant ".reset(nullptr)" of unique_ptr, in favor of ".reset()"
It's also possible to just write "= nullptr", but there's some question
of whether that's as readable, so I leave it up to authors to pick which
they prefer for now. If we want to discuss standardizing on one or the
other, we can do that at some point in the future.
llvm-svn: 213438
Warren Hunt [Sat, 19 Jul 2014 00:45:07 +0000 (00:45 +0000)]
[MS-ABI] Assign SEH handler indices to __try blocks
Assigns indices to try blocks. These indices will used in constructing
tables that the mscrt function __except_handler3 reads during SEH.
Testing will occur once we actually emit the tables, in a subsequent
patch.
llvm-svn: 213437
Jim Ingham [Sat, 19 Jul 2014 00:37:06 +0000 (00:37 +0000)]
In Process::LoadImage, use the same function call both to call dlopen and to collect
the error if there is one.
llvm-svn: 213436
Lang Hames [Sat, 19 Jul 2014 00:19:17 +0000 (00:19 +0000)]
[MCJIT] Add a 'decodeAddend' method to RuntimeDyldMachO and teach
getBasicRelocationEntry to use this rather than 'memcpy' to get the
relocation addend. Targets with non-trivial addend encodings (E.g. AArch64) can
override decodeAddend to handle immediates with interesting encodings.
No functional change.
llvm-svn: 213435
David Majnemer [Sat, 19 Jul 2014 00:17:06 +0000 (00:17 +0000)]
CodeGen: Properly null-check typeid expressions
Thoroughly check for a pointer dereference which yields a glvalue. Look
through casts, comma operators, conditional operators, paren
expressions, etc.
This was originally D4416.
Differential Revision: http://reviews.llvm.org/D4592
llvm-svn: 213434
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
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
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
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
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
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
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
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
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
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
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
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
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
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
Eric Christopher [Fri, 18 Jul 2014 22:34:18 +0000 (22:34 +0000)]
Remove commented out code.
llvm-svn: 213419
Eric Christopher [Fri, 18 Jul 2014 22:34:14 +0000 (22:34 +0000)]
Clean up some style and formatting issues.
llvm-svn: 213418
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
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
Alexey Samsonov [Fri, 18 Jul 2014 21:29:55 +0000 (21:29 +0000)]
Merge two lines
llvm-svn: 213415
Mark Heffernan [Fri, 18 Jul 2014 21:29:41 +0000 (21:29 +0000)]
Fix build breakage introduced with r213412.
llvm-svn: 213414
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
Mark Heffernan [Fri, 18 Jul 2014 21:04:33 +0000 (21:04 +0000)]
Remove unroll pragma metadata after it is used.
llvm-svn: 213412
Zachary Turner [Fri, 18 Jul 2014 21:03:06 +0000 (21:03 +0000)]
Fix a bug with order of operations.
llvm-svn: 213411
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
Eric Christopher [Fri, 18 Jul 2014 20:35:49 +0000 (20:35 +0000)]
Fix a couple of formatting and style issues.
llvm-svn: 213409
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
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
Eli Bendersky [Fri, 18 Jul 2014 20:11:26 +0000 (20:11 +0000)]
Add tests for atomic adds on floats.
llvm-svn: 213406
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
David Majnemer [Fri, 18 Jul 2014 19:53:25 +0000 (19:53 +0000)]
Address Richard's latest feedback.
llvm-svn: 213404
David Majnemer [Fri, 18 Jul 2014 19:53:23 +0000 (19:53 +0000)]
Address Richard's comments
llvm-svn: 213403
David Majnemer [Fri, 18 Jul 2014 19:53:21 +0000 (19:53 +0000)]
Address Richard's comments.
llvm-svn: 213402
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
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
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
Eli Bendersky [Fri, 18 Jul 2014 19:32:09 +0000 (19:32 +0000)]
Use CHECK-LABEL where appropriate in this test.
llvm-svn: 213398
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
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
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
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
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
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
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
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
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
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
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
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
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
Dmitry Vyukov [Fri, 18 Jul 2014 15:32:22 +0000 (15:32 +0000)]
tsan: fix Go runtime build with clang
llvm-svn: 213384
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
Dmitry Vyukov [Fri, 18 Jul 2014 14:54:02 +0000 (14:54 +0000)]
tsan: expose atomic operations in Go runtime
llvm-svn: 213382
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
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
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
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
Tim Northover [Fri, 18 Jul 2014 13:01:43 +0000 (13:01 +0000)]
NVPTX: support fpext/fptrunc to and from f16.
llvm-svn: 213377
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
Tim Northover [Fri, 18 Jul 2014 13:01:31 +0000 (13:01 +0000)]
AArch64: support f16 extend/trunc operations.
llvm-svn: 213375
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
Tim Northover [Fri, 18 Jul 2014 13:01:19 +0000 (13:01 +0000)]
ARM: support legalisation of "fptrunc ... to half" operations.
llvm-svn: 213373
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
Renato Golin [Fri, 18 Jul 2014 12:13:04 +0000 (12:13 +0000)]
Suppress 'not handled in switch' warning
llvm-svn: 213371
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
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
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
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
Joerg Sonnenberger [Fri, 18 Jul 2014 11:58:19 +0000 (11:58 +0000)]
Use PRIx64.
llvm-svn: 213366
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
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
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
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
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
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
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