platform/upstream/llvm.git
7 years agoAdd support for attribute enum_extensibility.
Akira Hatanaka [Tue, 21 Mar 2017 02:23:00 +0000 (02:23 +0000)]
Add support for attribute enum_extensibility.

This commit adds support for a new attribute that will be used to
distinguish between extensible and inextensible enums. There are three
main purposes of this attribute:

1. Give better control over when enum-related warnings are issued.
For example, in the code below, clang will not issue a -Wassign-enum
warning if the enum is marked "open":

enum __attribute__((enum_extensibility(closed))) EnumClosed {
  B0 = 1, B1 = 10
};

enum __attribute__((enum_extensibility(open))) EnumOpen {
  C0 = 1, C1 = 10
};

enum EnumClosed ec = 100; // warning issued
enum EnumOpen eo = 100; // no warning

2. Enable code-completion and debugging tools to offer better
suggestions.

3. Make it easier for swift's clang importer to determine which swift
type an enum should be mapped to.

For more details, see the discussion I started on cfe-dev:
http://lists.llvm.org/pipermail/cfe-dev/2017-February/052748.html

rdar://problem/12764379
rdar://problem/23145650

Differential Revision: https://reviews.llvm.org/D30766

llvm-svn: 298332

7 years agoFindTypes should find "struct TypeName" as well as "TypeName".
Jim Ingham [Tue, 21 Mar 2017 02:13:50 +0000 (02:13 +0000)]
FindTypes should find "struct TypeName" as well as "TypeName".

This fixes a bug introduced by r291559.  The Module's FindType was
passing the original name not the basename in the case where it didn't
find any separators.  I also added a testcase for this.

<rdar://problem/31159173>

llvm-svn: 298331

7 years agoIRGen: Do not set dllexport on declarations.
Peter Collingbourne [Tue, 21 Mar 2017 02:02:41 +0000 (02:02 +0000)]
IRGen: Do not set dllexport on declarations.

Setting dllexport on a declaration has no effect, as we do not emit export
directives for declarations.

Part of the fix for PR32334.

Differential Revision: https://reviews.llvm.org/D31162

llvm-svn: 298330

7 years agoRevert "[Hexagon] Recognize polynomial-modulo loop idiom again"
Vitaly Buka [Tue, 21 Mar 2017 00:59:51 +0000 (00:59 +0000)]
Revert "[Hexagon] Recognize polynomial-modulo loop idiom again"

Fix memory leaks on check-llvm tests detected by Asan.

This reverts commit r298282.

llvm-svn: 298329

7 years ago[ARM] Revert r297443 and r297820.
Eli Friedman [Tue, 21 Mar 2017 00:26:39 +0000 (00:26 +0000)]
[ARM] Revert r297443 and r297820.

The glueless lowering of addc/adde in Thumb1 has known serious
miscompiles (see https://reviews.llvm.org/D31081), and r297820
causes an infinite loop for certain constructs.  It's not
clear when they will be fixed, so let's just take them out
of the tree for now.

(I resolved a small conflict with r297453.)

llvm-svn: 298328

7 years ago[COFF] Don't let /def override /out filename
Reid Kleckner [Tue, 21 Mar 2017 00:12:51 +0000 (00:12 +0000)]
[COFF] Don't let /def override /out filename

Summary:
This also delays setting the output filename based on the first input
argument until after processing /def.

Fixes PR32354

Reviewers: ruiu, pcc

Subscribers: llvm-commits

Differential Revision: https://reviews.llvm.org/D31152

llvm-svn: 298327

7 years ago[Support] Fill the file_status struct with link count.
Zachary Turner [Mon, 20 Mar 2017 23:55:20 +0000 (23:55 +0000)]
[Support] Fill the file_status struct with link count.

Differential Revision: https://reviews.llvm.org/D31110

llvm-svn: 298326

7 years agoDelete LLDB's MD5 code. Use LLVM instead.
Zachary Turner [Mon, 20 Mar 2017 23:54:54 +0000 (23:54 +0000)]
Delete LLDB's MD5 code. Use LLVM instead.

Differential Revision: https://reviews.llvm.org/D31108

llvm-svn: 298325

7 years ago[analyze-project-deps.py] Add the ability to list all cycles.
Zachary Turner [Mon, 20 Mar 2017 23:54:26 +0000 (23:54 +0000)]
[analyze-project-deps.py] Add the ability to list all cycles.

This analyzes the dependency graph and computes all minimal
cycles.  Equivalent cycles that differ only by rotation are
excluded, as are cycles that are "super-cycles" of other
smaller cycles.  For example, if we discover the cycle
A -> C -> A, and then later A -> B -> C -> D -> A, this latter
cycle is not considered.  Thus, it is possible that after
eliminating some cycles, new ones will appear.  However,
this is the only way to make the algorithm terminate in
a reasonable amount of time.

llvm-svn: 298324

7 years agoMove OffsetInArchive to BitcodeFile.
Rafael Espindola [Mon, 20 Mar 2017 23:47:06 +0000 (23:47 +0000)]
Move OffsetInArchive to BitcodeFile.

It is the only file type that needs it.

llvm-svn: 298323

7 years agoAdd a function to MD5 a file's contents.
Zachary Turner [Mon, 20 Mar 2017 23:33:18 +0000 (23:33 +0000)]
Add a function to MD5 a file's contents.

In doing so, clean up the MD5 interface a little.  Most
existing users only care about the lower 8 bytes of an MD5,
but for some users that care about the upper and lower,
there wasn't a good interface.  Furthermore, consumers
of the MD5 checksum were required to handle endianness
details on their own, so it seems reasonable to abstract
this into a nicer interface that just gives you the right
value.

Differential Revision: https://reviews.llvm.org/D31105

llvm-svn: 298322

7 years ago[ARM] Fix PR32130: Handle promotion of zero sized constants.
Vadzim Dambrouski [Mon, 20 Mar 2017 22:59:57 +0000 (22:59 +0000)]
[ARM] Fix PR32130: Handle promotion of zero sized constants.

The special case of zero sized values was previously not handled correctly.
This patch handles this by not promoting if the size is zero.

Patch by Tim Neumann.

Differential Revision: https://reviews.llvm.org/D31116

llvm-svn: 298320

7 years agoFix parsing of htmxlintrin.h in C++ mode
Eric Christopher [Mon, 20 Mar 2017 22:31:33 +0000 (22:31 +0000)]
Fix parsing of htmxlintrin.h in C++ mode
 - Fix a variable naming mismatch
 - Fix gcc extension pointer arithmetic on void to cast to char *.
 - Test that the header (and htmintrin.h) parse.

llvm-svn: 298318

7 years ago[x86] add tests for setcc of i128/i256; NFC
Sanjay Patel [Mon, 20 Mar 2017 22:15:40 +0000 (22:15 +0000)]
[x86] add tests for setcc of i128/i256; NFC

llvm-svn: 298317

7 years ago[clang-tidy] readability-container-size-empty fix for (*x).size()
Alexander Kornienko [Mon, 20 Mar 2017 22:15:27 +0000 (22:15 +0000)]
[clang-tidy] readability-container-size-empty fix for (*x).size()

llvm-svn: 298316

7 years ago[clang-tidy] Small cleanup. NFC.
Alexander Kornienko [Mon, 20 Mar 2017 22:15:19 +0000 (22:15 +0000)]
[clang-tidy] Small cleanup. NFC.

llvm-svn: 298315

7 years agoMinor improvement of KMP_YIELD_NOW() macro.
Jonathan Peyton [Mon, 20 Mar 2017 22:11:31 +0000 (22:11 +0000)]
Minor improvement of KMP_YIELD_NOW() macro.

This change slightly improves performance of KMP_YIELD_NOW() macro, by using
_rdtsc() intrinsic function if possible.

Patch by Hansang Bae

Differential Revision: https://reviews.llvm.org/D31008

llvm-svn: 298314

7 years agoFix incorrect initial value of __kmp_affinity_type.
Jonathan Peyton [Mon, 20 Mar 2017 22:04:02 +0000 (22:04 +0000)]
Fix incorrect initial value of __kmp_affinity_type.

Affinity initialization code expects __kmp_affinity_type has the value
affinity_default by default, but the cleanup code does not properly set the
value back to affinity_default.  This may introduce some issues when multiple
roots are trying to initialize/uninitialize the runtime successively.

Patch by Hansang Bae

Differential Revision: https://reviews.llvm.org/D31012

llvm-svn: 298313

7 years agoInstCombine: Check source value precision when reducing cast intrinsic
Matt Arsenault [Mon, 20 Mar 2017 21:59:24 +0000 (21:59 +0000)]
InstCombine: Check source value precision when reducing cast intrinsic

Missed this check when porting from the libcall version.

llvm-svn: 298312

7 years agoGlobalISel: add implicit defs & uses when mutating an instruction.
Tim Northover [Mon, 20 Mar 2017 21:58:23 +0000 (21:58 +0000)]
GlobalISel: add implicit defs & uses when mutating an instruction.

Otherwise a scheduler might do bad things to the code we produce.

llvm-svn: 298311

7 years ago[docs] Clarify sanitizer flag behavior
Vedant Kumar [Mon, 20 Mar 2017 21:40:58 +0000 (21:40 +0000)]
[docs] Clarify sanitizer flag behavior

PR32346 suggests that UBSan's docs about the -fsanitize,
-fno-sanitize-recover, and -fsanitize-trap options are not explicit
enough. Try to improve the wording.

llvm-svn: 298310

7 years agoReplace uses of DwarfExpression::addMachineReg* with addMachineRegExpression
Adrian Prantl [Mon, 20 Mar 2017 21:35:09 +0000 (21:35 +0000)]
Replace uses of DwarfExpression::addMachineReg* with addMachineRegExpression
and mark the methods as protected.

Besides reducing the surface area of DwarfExpression, this is in
preparation for an upcoming bugfix in the DwarfExpression
implementation, for which it will be necessary to defer emitting
register operations until the rest of the expression is known.

NFC

llvm-svn: 298309

7 years agoMake implementation details in DwarfExpression protected. (NFC)
Adrian Prantl [Mon, 20 Mar 2017 21:34:19 +0000 (21:34 +0000)]
Make implementation details in DwarfExpression protected. (NFC)

llvm-svn: 298308

7 years agoTurn on HTM on power8 and later (including powerpc64le) since it's
Eric Christopher [Mon, 20 Mar 2017 21:12:53 +0000 (21:12 +0000)]
Turn on HTM on power8 and later (including powerpc64le) since it's
available by default on those cpus and configurations.

llvm-svn: 298307

7 years ago[ELF][MIPS] Calculate relocations agains _gp_disp / __gnu_local_gp using dedicated...
Simon Atanasyan [Mon, 20 Mar 2017 21:03:43 +0000 (21:03 +0000)]
[ELF][MIPS] Calculate relocations agains _gp_disp / __gnu_local_gp using dedicated 'expressions'

The patch introduces two new relocations expressions R_MIPS_GOT_GP and
R_MIPS_GOT_GP_PC. The first one represents a current value of `_gp`
pointer and used to calculate relocations against the `__gnu_local_gp`
symbol. The second one represents the offset between the beginning of
the function and the `_gp` pointer's value.

There are two motivations for introducing new expressions:
- It's better to keep all non-trivial relocation calculations in the
  single place - `getRelocTargetVA` function.
- Relocations against both `_gp_disp` and `__gnu_local_gp` symbols
  depend on the `_gp` value. It's a magical value points to the "middle"
  of GOT. Now all relocations use a common `_gp` value. But in fact,
  under some conditions each input file might require its own `_gp`
  value. I'm going to implement it in the future patches. So it's
  better to make `MipsGotSection` responsible for calculation of
  the `_gp` value.

llvm-svn: 298306

7 years agoBypass potential libc's sysconf wrappers for sysconf(_SC_PAGESIZE) call
Alex Shlyapnikov [Mon, 20 Mar 2017 21:03:28 +0000 (21:03 +0000)]
Bypass potential libc's sysconf wrappers for sysconf(_SC_PAGESIZE) call

Summary:
sysconf(_SC_PAGESIZE) is called very early, during sanitizer init and
any instrumented code (a wrapper/interceptor will likely be instrumented)
calling back to sanitizer before init is done will most surely crash.

Reviewers: eugenis

Subscribers: llvm-commits, kubamracek

Differential Revision: https://reviews.llvm.org/D31092

llvm-svn: 298305

7 years ago[ELF][MIPS] Follow-up to r298272. Fix typo to fix buildbot.
Simon Atanasyan [Mon, 20 Mar 2017 20:49:44 +0000 (20:49 +0000)]
[ELF][MIPS] Follow-up to r298272. Fix typo to fix buildbot.

llvm-svn: 298304

7 years agoProposal: Backward-edge CFI for return statements (RCFI)
Kostya Serebryany [Mon, 20 Mar 2017 20:42:00 +0000 (20:42 +0000)]
Proposal: Backward-edge CFI for return statements (RCFI)

Summary: Proposal: Backward-edge CFI for return statements (RCFI)

Reviewers: pcc, eugenis, krasin

Reviewed By: eugenis

Subscribers: llvm-commits

Differential Revision: https://reviews.llvm.org/D31112

llvm-svn: 298303

7 years ago[Fuchsia] Use %gs for ABI slots under -mcmodel=kernel
Evgeniy Stepanov [Mon, 20 Mar 2017 20:35:37 +0000 (20:35 +0000)]
[Fuchsia] Use %gs for ABI slots under -mcmodel=kernel

Make x86_64-fuchsia targets under -mcmodel=kernel use %gs rather
than %fs to access ABI slots for stack-protector and safe-stack

Patch by Roland McGrath.

Differential Revision: https://reviews.llvm.org/D30870

llvm-svn: 298302

7 years ago[SCEV] Fix trip multiple calculation
Eli Friedman [Mon, 20 Mar 2017 20:25:46 +0000 (20:25 +0000)]
[SCEV] Fix trip multiple calculation

If loop bound containing calculations like min(a,b), the Scalar
Evolution API getSmallConstantTripMultiple returns 4294967295 "-1"
as the trip multiple. The problem is that, SCEV use -1 * umax to
represent umin. The multiple constant -1 was returned, and the logic
of guarding against huge trip counts was skipped. Because -1 has 32
active bits.

The fix attempt to factor more general cases. First try to get the
greatest power of two divisor of trip count expression. In case
overflow happens, the trip count expression is still divisible by the
greatest power of two divisor returned. Returns 1 if not divisible by 2.

Patch by Huihui Zhang <huihuiz@codeaurora.org>

Differential Revision: https://reviews.llvm.org/D30840

llvm-svn: 298301

7 years agoAvoid these headers looking like the same file on a content-addressed file system.
Richard Smith [Mon, 20 Mar 2017 20:14:03 +0000 (20:14 +0000)]
Avoid these headers looking like the same file on a content-addressed file system.

llvm-svn: 298300

7 years agoBump __cplusplus for C++17 to 201703L per the C++17 DIS.
Richard Smith [Mon, 20 Mar 2017 20:12:48 +0000 (20:12 +0000)]
Bump __cplusplus for C++17 to 201703L per the C++17 DIS.

llvm-svn: 298299

7 years ago[X86] Clean up test/CodeGen/X86/2006-03-01-InstrSchedBug.ll
David L. Jones [Mon, 20 Mar 2017 20:10:30 +0000 (20:10 +0000)]
[X86] Clean up test/CodeGen/X86/2006-03-01-InstrSchedBug.ll

Summary:
- Migrated from grep to FileCheck.
- Re-indented, removed boilerplate comments.
- Added 'entry' label at beginning of basic block.

Patch by Jorge Gorbe!

Reviewed By: RKSimon

Subscribers: RKSimon, jgorbe, llvm-commits

Differential Revision: https://reviews.llvm.org/D30317

llvm-svn: 298298

7 years agoExplicitly add move constructor/assignment operators.
Zachary Turner [Mon, 20 Mar 2017 19:56:52 +0000 (19:56 +0000)]
Explicitly add move constructor/assignment operators.

These are needed due to some obscure rules in the standard
about how std::vector selects between copy and move
constructors, which can cause a conforming implementation
to attempt to select the copy constructor of RuleMatcher,
which will fail since std::unique_ptr<> isn't copyable.

llvm-svn: 298294

7 years agoAdd test case for merging of chained stores of mismatched type.
Nirav Dave [Mon, 20 Mar 2017 19:48:22 +0000 (19:48 +0000)]
Add test case for merging of chained stores of mismatched type.

llvm-svn: 298293

7 years agoAdd the rest of the error checking for Mach-O dyld compact bind entry errors
Kevin Enderby [Mon, 20 Mar 2017 19:46:55 +0000 (19:46 +0000)]
Add the rest of the error checking for Mach-O dyld compact bind entry errors
and test cases for each of the error checks.

To do this more plumbing was needed so that the segment indexes and
segment offsets can be checked.  Basically what was done was the SegInfo
from llvm-objdump’s MachODump.cpp was moved into libObject for Mach-O
objects as BindRebaseSegInfo and it is only created when an iterator for
bind or rebase entries are created.

This commit really only adds the error checking and test cases for the
bind table entires and the checking for the lazy bind and weak bind entries
are still to be fully done as well as the rebase entires.  Though some of
the plumbing for those are added with this commit.  Those other error
checks and test cases will be added in follow on commits.

Note, the two llvm_unreachable() calls should now actually be unreachable
with the error checks in place and would take a logic bug in the error
checking code to be reached if the segment indexes and segment
offsets are used from a checked bind entry.  Comments have been added
to the methods that require the arguments to have been checked
prior to calling.

llvm-svn: 298292

7 years agoGet ObjectFileMachO to handle @executable_path
Jim Ingham [Mon, 20 Mar 2017 19:21:31 +0000 (19:21 +0000)]
Get ObjectFileMachO to handle @executable_path

Only do this when we are debugging an executable, since we
don't have a good way to trace from an ObjectFile back to its
containing executable.  Detecting pre-run libs before running
is "best effort" in lldb, but this one is pretty easy.

llvm-svn: 298290

7 years agoFix a problem with line tables & .o files that start with code with no line table...
Jim Ingham [Mon, 20 Mar 2017 19:19:03 +0000 (19:19 +0000)]
Fix a problem with line tables & .o files that start with code with no line table entries.

If you have code before the first line table entry when debugging with .o files on macOS, the
LineTable entry search code was assigning all that code to the first line table entry. Don't do that.

<rdar://problem/31095765>

llvm-svn: 298289

7 years agoRevert r298158.
Evgeniy Stepanov [Mon, 20 Mar 2017 18:45:34 +0000 (18:45 +0000)]
Revert r298158.

Revert "[asan] Fix dead stripping of globals on Linux."

OOM in gold linker.

llvm-svn: 298288

7 years agoRevert r298174, r298173, r298169, r298159.
Evgeniy Stepanov [Mon, 20 Mar 2017 18:45:27 +0000 (18:45 +0000)]
Revert r298174, r298173, r298169, r298159.

Revert "Fix sanitizer tests with LLVM_TOOL_LLD_BUILD=OFF."
Revert "[asan] Remove gc-sections test with bfd."
Revert "[asan] Disable globals-gc test with ld.bfd."
Revert "[asan] Fix dead stripping of globals on Linux (compiler-rt)"

OOM in gold linker.

llvm-svn: 298287

7 years agoFixed include order. NFCI.
Simon Pilgrim [Mon, 20 Mar 2017 18:33:23 +0000 (18:33 +0000)]
Fixed include order. NFCI.

llvm-svn: 298286

7 years agoTry using llvm::errc, should hopefully fix version mismatch problem on clang-s390x...
Peter Collingbourne [Mon, 20 Mar 2017 18:19:41 +0000 (18:19 +0000)]
Try using llvm::errc, should hopefully fix version mismatch problem on clang-s390x-linux bot.

llvm-svn: 298285

7 years agoAdd two more papers from Kona, and sort them
Marshall Clow [Mon, 20 Mar 2017 18:18:09 +0000 (18:18 +0000)]
Add two more papers from Kona, and sort them

llvm-svn: 298284

7 years ago[Hexagon] Recognize polynomial-modulo loop idiom again
Krzysztof Parzyszek [Mon, 20 Mar 2017 18:12:58 +0000 (18:12 +0000)]
[Hexagon] Recognize polynomial-modulo loop idiom again

Regain the ability to recognize loops calculating polynomial modulo
operation. This ability has been lost due to some changes in the
preceding optimizations. Add code to preprocess the IR to a form
that the pattern matching code can recognize.

llvm-svn: 298282

7 years ago[AMDGPU] Run always inliner early in opt
Konstantin Zhuravlyov [Mon, 20 Mar 2017 18:06:45 +0000 (18:06 +0000)]
[AMDGPU] Run always inliner early in opt

Differential Revision: https://reviews.llvm.org/D31141

llvm-svn: 298281

7 years agoAdd missing updated test from VN coercion changes. Instructions were renamed. NFC
Daniel Berlin [Mon, 20 Mar 2017 18:04:19 +0000 (18:04 +0000)]
Add missing updated test from VN coercion changes. Instructions were renamed. NFC

llvm-svn: 298280

7 years agoFix UB found by -Wtautological-undefined-compare
David Blaikie [Mon, 20 Mar 2017 18:01:07 +0000 (18:01 +0000)]
Fix UB found by -Wtautological-undefined-compare

llvm-svn: 298279

7 years agoReapply "Modules: Cache PCMs in memory and avoid a use-after-free"
Duncan P. N. Exon Smith [Mon, 20 Mar 2017 17:58:26 +0000 (17:58 +0000)]
Reapply "Modules: Cache PCMs in memory and avoid a use-after-free"

This reverts commit r298185, effectively reapplying r298165, after fixing the
new unit tests (PR32338).  The memory buffer generator doesn't null-terminate
the MemoryBuffer it creates; this version of the commit informs getMemBuffer
about that to avoid the assert.

Original commit message follows:

----

Clang's internal build system for implicit modules uses lock files to
ensure that after a process writes a PCM it will read the same one back
in (without contention from other -cc1 commands).  Since PCMs are read
from disk repeatedly while invalidating, building, and importing, the
lock is not released quickly.  Furthermore, the LockFileManager is not
robust in every environment.  Other -cc1 commands can stall until
timeout (after about eight minutes).

This commit changes the lock file from being necessary for correctness
to a (possibly dubious) performance hack.  The remaining benefit is to
reduce duplicate work in competing -cc1 commands which depend on the
same module.  Follow-up commits will change the internal build system to
continue after a timeout, and reduce the timeout.  Perhaps we should
reconsider blocking at all.

This also fixes a use-after-free, when one part of a compilation
validates a PCM and starts using it, and another tries to swap out the
PCM for something new.

The PCMCache is a new type called MemoryBufferCache, which saves memory
buffers based on their filename.  Its ownership is shared by the
CompilerInstance and ModuleManager.

- The ModuleManager stores PCMs there that it loads from disk, never
touching the disk if the cache is hot.

- When modules fail to validate, they're removed from the cache.

- When a CompilerInstance is spawned to build a new module, each
already-loaded PCM is assumed to be valid, and is frozen to avoid
the use-after-free.

- Any newly-built module is written directly to the cache to avoid the
round-trip to the filesystem, making lock files unnecessary for
correctness.

Original patch by Manman Ren; most testcases by Adrian Prantl!

llvm-svn: 298278

7 years agoMention that the Sphinx docs build wants version 1.5 or later
Jonathan Roelofs [Mon, 20 Mar 2017 17:49:36 +0000 (17:49 +0000)]
Mention that the Sphinx docs build wants version 1.5 or later

`misc.highlighting_failure` support was added to `suppress_warnings` in that
version, and the warnings-as-errors docs build relies on it.

llvm-svn: 298277

7 years ago[WinEH] Adjust decision to emit SEH moves for leaf functions
Reid Kleckner [Mon, 20 Mar 2017 17:45:59 +0000 (17:45 +0000)]
[WinEH] Adjust decision to emit SEH moves for leaf functions

Move the check for "MF->hasWinCFI()" up into the calculation of the
shouldEmitMoves boolean, rather than putting it in the early returning
if. This ensures that endFunction doesn't try to emit .seh_* directives
for leaf functions.

llvm-svn: 298276

7 years agoFix some sphinx -Werror's
Jonathan Roelofs [Mon, 20 Mar 2017 17:07:49 +0000 (17:07 +0000)]
Fix some sphinx -Werror's

... mostly having to do with code blocks which the syntax highlighter chokes on

llvm-svn: 298275

7 years agoUse pthreads for thread-local lsan allocator cache on darwin
Francis Ricci [Mon, 20 Mar 2017 17:06:42 +0000 (17:06 +0000)]
Use pthreads for thread-local lsan allocator cache on darwin

Summary:
This patch allows us to move away from using __thread on darwin,
which is requiring for building lsan for darwin on ios version 7
and on iossim i386.

Reviewers: kubamracek, kcc

Subscribers: llvm-commits

Differential Revision: https://reviews.llvm.org/D29994

llvm-svn: 298274

7 years agoGlobalISel: allow quad-precision values to be dumped.
Tim Northover [Mon, 20 Mar 2017 16:52:08 +0000 (16:52 +0000)]
GlobalISel: allow quad-precision values to be dumped.

Otherwise the fallback path fails with an assertion on AAPCS AArch64 targets,
when "long double" is encountered.

llvm-svn: 298273

7 years ago[ELF] - Detemplate MipsGotSection<ELFT>
George Rimar [Mon, 20 Mar 2017 16:44:28 +0000 (16:44 +0000)]
[ELF] - Detemplate MipsGotSection<ELFT>

This continues detemplation process.

Detemplating MipsGotSection<ELFT> is helpfull because can
help to detemplate getRelocTargetVA. (one more change is required)
It opens road to detemplation of GotSection<ELFT> and probably
something else after that.

Differential revision: https://reviews.llvm.org/D31090

llvm-svn: 298272

7 years agoSupport, LTO: When pruning a directory, ignore files matching a prefix.
Peter Collingbourne [Mon, 20 Mar 2017 16:41:57 +0000 (16:41 +0000)]
Support, LTO: When pruning a directory, ignore files matching a prefix.

This is a safeguard against data loss if the user specifies a directory
that is not a cache directory. Teach the existing cache pruning clients
to create files with appropriate names.

Differential Revision: https://reviews.llvm.org/D31109

llvm-svn: 298271

7 years agoUpdates branch_weights annotation for call instructions during inlining.
Dehao Chen [Mon, 20 Mar 2017 16:40:44 +0000 (16:40 +0000)]
Updates branch_weights annotation for call instructions during inlining.

Summary: Inliner should update the branch_weights annotation to scale it to proper value.

Reviewers: davidxl, eraman

Reviewed By: eraman

Subscribers: zzheng, llvm-commits

Differential Revision: https://reviews.llvm.org/D30767

llvm-svn: 298270

7 years ago[ELF] - Detemplate BuildIdSection section.
George Rimar [Mon, 20 Mar 2017 16:40:21 +0000 (16:40 +0000)]
[ELF] - Detemplate BuildIdSection section.

Does not introduce anything new,
just performs detemplate, using methods we
already have.

Differential revision: https://reviews.llvm.org/D30935

llvm-svn: 298269

7 years agoUse isa<> instead of dyn_cast<> (NFC).
Adrian Prantl [Mon, 20 Mar 2017 16:39:41 +0000 (16:39 +0000)]
Use isa<> instead of dyn_cast<> (NFC).

llvm-svn: 298268

7 years agoDisable stack-use-after-return.cc on AArch64. The test was not testing the right...
Kuba Mracek [Mon, 20 Mar 2017 16:36:34 +0000 (16:36 +0000)]
Disable stack-use-after-return.cc on AArch64.  The test was not testing the right thing before (the call to pthread_attr_setstacksize wasn't doing anything) anyway, and now it's running out of stack due to an unrelated change.

llvm-svn: 298267

7 years agoAvoid potential ADL ambiguity between llvm::make_unique and std::make_unique (when...
David Blaikie [Mon, 20 Mar 2017 16:35:33 +0000 (16:35 +0000)]
Avoid potential ADL ambiguity between llvm::make_unique and std::make_unique (when building as C++14+)

Patch by Moritz Kiefer!

llvm-svn: 298266

7 years ago[AMDGPU][MC] Fix for Bugs 28201, 28199, 28170 + LIT tests
Dmitry Preobrazhensky [Mon, 20 Mar 2017 16:33:20 +0000 (16:33 +0000)]
[AMDGPU][MC] Fix for Bugs 28201, 28199, 28170 + LIT tests

This fix enables sp3 abs modifier with constants

Reviewers: artem.tamazov

Differential Revision: https://reviews.llvm.org/D30825

llvm-svn: 298265

7 years ago[InstCombine] Print a debug message when we constant fold an operand during worklist...
Craig Topper [Mon, 20 Mar 2017 16:31:14 +0000 (16:31 +0000)]
[InstCombine] Print a debug message when we constant fold an operand during worklist creation

InstCombine tries to constant fold instruction operands during worklist building, but we don't print that we're doing this.

We also set a change flag here that causes us to rebuild and rerun the worklist one more time even if processing the worklist itself created no additional changes. So in the log I saw two inst combine runs that visited all instructions without printing that anything was changed. I may be submitting another patch to remove the change flag unless I can find some reason why we should be doing that.

Differential Revision: https://reviews.llvm.org/D31091

llvm-svn: 298264

7 years ago[Outliner] ACTUALLY remove the errs output
Jessica Paquette [Mon, 20 Mar 2017 16:25:04 +0000 (16:25 +0000)]
[Outliner] ACTUALLY remove the errs output

I don't know how to type. This fixes the last commit which would have made all
of the overflows legal, and kept the screaming.

llvm-svn: 298263

7 years agoTemplatize parts of VNCoercion, and add constant-only versions of the functions to...
Daniel Berlin [Mon, 20 Mar 2017 16:08:29 +0000 (16:08 +0000)]
Templatize parts of VNCoercion, and add constant-only versions of the functions to be used in NewGVN.
NFCI.

Summary:
This is ground work for the changes to enable coercion in NewGVN.
GVN doesn't care if they end up constant because it eliminates as it goes.
NewGVN cares.

IRBuilder and ConstantFolder deliberately present the same interface,
so we use this to our advantage to templatize our functions to make
them either constant only or not.

Reviewers: davide

Subscribers: llvm-commits, Prazek

Differential Revision: https://reviews.llvm.org/D30928

llvm-svn: 298262

7 years agoFix remote test suite directory creation
Pavel Labath [Mon, 20 Mar 2017 16:07:17 +0000 (16:07 +0000)]
Fix remote test suite directory creation

r298203 make SBPlatform::MakeDirectory less recursive, which breaks the
test suite creation of test directory hierarchy creation on the remote
target. Since the function was never fully recursive, and the name does
not imply recursiveness, I fix the problem by modifying the test runner
to do the recursion manually.

I also make the runner complain more loudly when it fails to create the
directory -- previously it just printed the error to stdout and caused
most of the tests to hang, which is not very helpful in diagnosing the
problem.

llvm-svn: 298261

7 years ago[Outliner] Remove output for offset range check
Jessica Paquette [Mon, 20 Mar 2017 15:51:45 +0000 (15:51 +0000)]
[Outliner] Remove output for offset range check

Forgot to remove some output before committing last time. (Instruction fixups
don't actually overflow anywhere in the test suite so far, so I missed it).

To prevent the outliner from screaming "Overflow!" in the event that that
does happen, this commit removes that output.

llvm-svn: 298260

7 years ago[DeLICM] Refector out parseSetOrNull. NFC.
Michael Kruse [Mon, 20 Mar 2017 15:37:32 +0000 (15:37 +0000)]
[DeLICM] Refector out parseSetOrNull. NFC.

Note that the isl::union_set(isl_ctx,std::string) constructor will
auto-convert the char* to an std::string. Converting a nullptr to
std::string is undefined in C++11 (sect. 21.4.2.9).

llvm-svn: 298259

7 years ago[DeLICM] Add forgotten isl_space_set_tuple_id in unittests.
Michael Kruse [Mon, 20 Mar 2017 15:24:45 +0000 (15:24 +0000)]
[DeLICM] Add forgotten isl_space_set_tuple_id in unittests.

Otherwise the isl_id NewId which ensures uniqueness of the
created space is unused. None of the tests currently uses an
nameless tuple, so there is not change in what is tested.

llvm-svn: 298258

7 years ago[tablegen][globalisel] Capture instructions into locals and related infrastructure...
Daniel Sanders [Mon, 20 Mar 2017 15:20:42 +0000 (15:20 +0000)]
[tablegen][globalisel] Capture instructions into locals and related infrastructure for multiple instructions matches.

Summary:
Prepare the way for nested instruction matching support by having actions
like CopyRenderer look up operands in the RuleMatcher rather than a
specific InstructionMatcher. This allows actions to reference any operand
from any matched instruction.

It works by checking the 'shape' of the match and capturing
each matched instruction to a local variable. If the shape is wrong
(not enough operands, leaf nodes where non-leafs are expected, etc.), then
the rule exits early without checking the predicates. Once we've captured
the instructions, we then test the predicates as before (except using the
local variables). If the match is successful, then we render the new
instruction as before using the local variables.

It's not noticable in this patch but by the time we support multiple
instruction matching, this patch will also cause a significant improvement
to readability of the emitted code since
MRI.getVRegDef(I->getOperand(0).getReg()) will simply be MI1 after
emitCxxCaptureStmts().

This isn't quite NFC because I've also fixed a bug that I'm surprised we
haven't encountered yet. It now checks there are at least the expected
number of operands before accessing them with getOperand().

Depends on D30531

Reviewers: t.p.northover, qcolombet, aditya_nandakumar, ab, rovka

Reviewed By: rovka

Subscribers: dberris, kristof.beyls, llvm-commits

Differential Revision: https://reviews.llvm.org/D30535

llvm-svn: 298257

7 years ago[OpenCL] Fix extension guards for atomic functions
Anastasia Stulova [Mon, 20 Mar 2017 15:02:54 +0000 (15:02 +0000)]
[OpenCL] Fix extension guards for atomic functions

Review: D30830

Patch by James Price!

llvm-svn: 298256

7 years ago[AMDGPU][MC] Fix for Bugs 28200, 28202 + LIT tests
Dmitry Preobrazhensky [Mon, 20 Mar 2017 14:50:35 +0000 (14:50 +0000)]
[AMDGPU][MC] Fix for Bugs 28200, 28202 + LIT tests

Fixed several related issues with VOP3 fp modifiers.

Reviewers: artem.tamazov

Differential Revision: https://reviews.llvm.org/D30821

llvm-svn: 298255

7 years ago[GlobalISel] Use the correct calling conv for calls
Diana Picus [Mon, 20 Mar 2017 14:40:18 +0000 (14:40 +0000)]
[GlobalISel] Use the correct calling conv for calls

This commit adds a parameter that lets us pass in the calling convention
of the call to CallLowering::lowerCall. This allows us to handle
situations where the calling convetion of the callee is different from
that of the caller.

Differential Revision: https://reviews.llvm.org/D31039

llvm-svn: 298254

7 years agoUse MutableArrayRef for APFloat::convertToInteger
Simon Pilgrim [Mon, 20 Mar 2017 14:40:12 +0000 (14:40 +0000)]
Use MutableArrayRef for APFloat::convertToInteger

As discussed on D31074, use MutableArrayRef for destination integer buffers to help assert before stack overflows happen.

llvm-svn: 298253

7 years agoInline a few functions.
Rafael Espindola [Mon, 20 Mar 2017 14:35:41 +0000 (14:35 +0000)]
Inline a few functions.

I don't foresee having to makes these functions any stricter or
fancier, so it probably makes sense to inline them.

llvm-svn: 298252

7 years agoInitialize dot.
Rafael Espindola [Mon, 20 Mar 2017 14:33:33 +0000 (14:33 +0000)]
Initialize dot.

This would fix an initialized error found by msan. The error is not
showing after r298241, but it is not clear why.

llvm-svn: 298251

7 years ago[sancov] Fix broken links and displaced coloring in coverage-report-server.py
Maxim Ostapenko [Mon, 20 Mar 2017 14:06:04 +0000 (14:06 +0000)]
[sancov] Fix broken links and displaced coloring in coverage-report-server.py

This patch fixes two issues:

* Fixed relative links to source files
* Enumeration of lines in source files starts from 1 instead of 0 to
  align with .symcov files generated by sancov -symbolize

Patch by Dmitiriy Nikiforov.

Differential Revision: https://reviews.llvm.org/D31038

llvm-svn: 298250

7 years agoStrip trailing whitespace
Simon Pilgrim [Mon, 20 Mar 2017 13:55:35 +0000 (13:55 +0000)]
Strip trailing whitespace

llvm-svn: 298249

7 years agoStrip trailing whitespace
Simon Pilgrim [Mon, 20 Mar 2017 13:54:44 +0000 (13:54 +0000)]
Strip trailing whitespace

llvm-svn: 298248

7 years agoStrip trailing whitespace
Simon Pilgrim [Mon, 20 Mar 2017 13:53:59 +0000 (13:53 +0000)]
Strip trailing whitespace

llvm-svn: 298247

7 years agoRevert "Use pthreads for thread-local lsan allocator cache on darwin"
Francis Ricci [Mon, 20 Mar 2017 13:45:29 +0000 (13:45 +0000)]
Revert "Use pthreads for thread-local lsan allocator cache on darwin"

This is still failing stack-use-after-return on linux-aarch64.

This reverts commit 5b350130fc4bf6f70c078a5d97096df98a17a057.

llvm-svn: 298246

7 years agoAdd more examples to clang-format configuration
Sylvestre Ledru [Mon, 20 Mar 2017 12:56:40 +0000 (12:56 +0000)]
Add more examples to clang-format configuration

Reviewers: djasper

Reviewed By: djasper

Subscribers: klimek, cfe-commits

Differential Revision: https://reviews.llvm.org/D30990

llvm-svn: 298245

7 years ago[ELF] - Simplify redundant templated call. NFC.
George Rimar [Mon, 20 Mar 2017 10:47:00 +0000 (10:47 +0000)]
[ELF] - Simplify redundant templated call. NFC.

llvm-svn: 298244

7 years ago[ELF] - Get rid of uintX_t in GdbIndexSection. NFC.
George Rimar [Mon, 20 Mar 2017 10:40:40 +0000 (10:40 +0000)]
[ELF] - Get rid of uintX_t in GdbIndexSection. NFC.

llvm-svn: 298243

7 years ago[ELF] - Reuse Config->IsLE. NFC.
George Rimar [Mon, 20 Mar 2017 10:16:57 +0000 (10:16 +0000)]
[ELF] - Reuse Config->IsLE. NFC.

llvm-svn: 298242

7 years ago[ELF] - Combine LinkerScriptBase and LinkerScript<ELFT>
George Rimar [Mon, 20 Mar 2017 10:09:58 +0000 (10:09 +0000)]
[ELF] - Combine LinkerScriptBase and LinkerScript<ELFT>

Patch removes templated linkerscript class.

Unfortunately that required 2 additional static methods
findSymbol() and addRegularSymbol() because code
depends on Symtab<ELFT>::X

Differential revision: https://reviews.llvm.org/D30982

llvm-svn: 298241

7 years ago[ELF] - Apply clang-format. NFC.
George Rimar [Mon, 20 Mar 2017 09:51:18 +0000 (09:51 +0000)]
[ELF] - Apply clang-format. NFC.

llvm-svn: 298240

7 years agoRevert "[AMDGPU] Run always inliner early in opt"
Konstantin Zhuravlyov [Mon, 20 Mar 2017 09:26:08 +0000 (09:26 +0000)]
Revert "[AMDGPU] Run always inliner early in opt"

This reverts commit r297958, it breaks device-libs build.

llvm-svn: 298239

7 years ago[scan-build-py] use python tempfile for tempdir
Laszlo Nagy [Mon, 20 Mar 2017 09:03:24 +0000 (09:03 +0000)]
[scan-build-py] use python tempfile for tempdir

Differential Revision: https://reviews.llvm.org/D30862

llvm-svn: 298238

7 years ago[IR] Move a few static functions in Instruction class inline.
Craig Topper [Mon, 20 Mar 2017 06:40:39 +0000 (06:40 +0000)]
[IR] Move a few static functions in Instruction class inline.

They just check for certain opcodes and opcode enums are available in Instruction.h.

llvm-svn: 298237

7 years ago[ConstantRange] Add setSizeSmallerThanOf method.
Michael Zolotukhin [Mon, 20 Mar 2017 06:33:07 +0000 (06:33 +0000)]
[ConstantRange] Add setSizeSmallerThanOf method.

Summary:
ConstantRange class currently has a method getSetSize, which is mostly used to
compare set sizes of two constant ranges (there is only one spot where it's used
in a slightly different scenario). This patch introduces setSizeSmallerThanOf
method, which does such comparison in a more efficient way. In the original
method we have to extend our types to (BitWidth+1), which can result it using
slow case of APInt, extra memory allocations, etc.

The change is supposed to not change any functionality, but it slightly improves
compile time. Here is compile time improvements that I observed on CTMark:
* tramp3d-v4 -2.02%
* pairlocalalign -1.82%
* lencod -1.67%

Reviewers: sanjoy, atrick, pete

Subscribers: llvm-commits

Differential Revision: https://reviews.llvm.org/D31104

llvm-svn: 298236

7 years ago[IR] Remove some unneeded includes from Operator.h and fix cpp files that were transi...
Craig Topper [Mon, 20 Mar 2017 05:08:41 +0000 (05:08 +0000)]
[IR] Remove some unneeded includes from Operator.h and fix cpp files that were transitively depending on it. NFC

llvm-svn: 298235

7 years ago[IR] Add missing copyright header.
Craig Topper [Mon, 20 Mar 2017 05:08:38 +0000 (05:08 +0000)]
[IR] Add missing copyright header.

llvm-svn: 298234

7 years ago[APInt] Don't initialize VAL to 0 in APInt constructors. Push it down to the initSlow...
Craig Topper [Mon, 20 Mar 2017 01:29:52 +0000 (01:29 +0000)]
[APInt] Don't initialize VAL to 0 in APInt constructors. Push it down to the initSlowCase and other init methods.

I'm not sure if zeroing VAL before writing pVal is really necessary, but at least one other place did it in code.

But by taking the store out of line, this reduces the opt binary by about 20k on my local x86-64 build.

llvm-svn: 298233

7 years agoRemove unnecessary IDom check
Xin Tong [Mon, 20 Mar 2017 00:30:19 +0000 (00:30 +0000)]
Remove unnecessary IDom check

Summary: This Idom check seems unnecessary. The immediate children of a node on the Dominator Tree should always be the IDom of its immediate children in this case.

Reviewers: hfinkel, majnemer, dberlin

Reviewed By: dberlin

Subscribers: dberlin, davide, llvm-commits

Differential Revision: https://reviews.llvm.org/D26954

llvm-svn: 298232

7 years ago[InstCombine] Remove duplicate code in SimplifyDemandedUseBits for URem. NFC
Craig Topper [Sun, 19 Mar 2017 21:45:57 +0000 (21:45 +0000)]
[InstCombine] Remove duplicate code in SimplifyDemandedUseBits for URem. NFC

llvm-svn: 298231

7 years ago[ELF] clang-format sortMipsSymbols. NFC
Simon Atanasyan [Sun, 19 Mar 2017 19:32:51 +0000 (19:32 +0000)]
[ELF] clang-format sortMipsSymbols. NFC

llvm-svn: 298230

7 years agoRename the clang-tidy safety module to be hicpp, for the High-Integrity C++ coding...
Aaron Ballman [Sun, 19 Mar 2017 17:23:23 +0000 (17:23 +0000)]
Rename the clang-tidy safety module to be hicpp, for the High-Integrity C++ coding standard from PRQA.

This commit renames all of the safety functionality to be hicpp, adds an appropriate LICENSE.TXT, and updates the documentation accordingly.

llvm-svn: 298229

7 years ago[AVX-512] Handle kor/kand/kandn/kxor/kxnor/knot intrinsics at lowering time instead...
Craig Topper [Sun, 19 Mar 2017 17:11:09 +0000 (17:11 +0000)]
[AVX-512] Handle kor/kand/kandn/kxor/kxnor/knot intrinsics at lowering time instead of isel

Summary:
Currently we handle these intrinsics at isel with special patterns. But as they just map to normal logic operations, we should just handle them at lowering. This will expose them to DAG combine optimizations. Right now the kor-sequence test generates a bunch of regclass copies between GR16 and VK16 that the peephole optimizer and/or register coallescing are removing to keep everything in the mask domain. By handling the logic op intrinsics earlier, these copies become bitcasts in the DAG and get removed by DAG combine which seems more robust.

This should help enable my plan to stop copying between K registers and GR8/GR16. The peephole optimizer can't remove a chain of copies between K and GR32 with insert_subreg/extract_subreg present in the chain so the kor-sequence test break. But this patch should dodge the problem entirely.

Reviewers: zvi, delena, RKSimon, igorb

Reviewed By: igorb

Subscribers: llvm-commits

Differential Revision: https://reviews.llvm.org/D31056

llvm-svn: 298228

7 years ago[InstCombine] Use update_test_checks.py to regenerate a test. NFC
Craig Topper [Sun, 19 Mar 2017 17:04:52 +0000 (17:04 +0000)]
[InstCombine] Use update_test_checks.py to regenerate a test. NFC

llvm-svn: 298227

7 years agoFix constant folding of fp2int to large integers
Simon Pilgrim [Sun, 19 Mar 2017 16:50:25 +0000 (16:50 +0000)]
Fix constant folding of fp2int to large integers

We make the assumption in most of our constant folding code that a fp2int will target an integer of 128-bits or less, calling the APFloat::convertToInteger with only uint64_t[2] of raw bits for the result.

Fuzz testing (PR24662) showed that we don't handle other cases at all, resulting in stack overflows and all sorts of crashes.

This patch uses the APSInt version of APFloat::convertToInteger instead to better handle such cases.

Differential Revision: https://reviews.llvm.org/D31074

llvm-svn: 298226