platform/upstream/llvm.git
6 years agoopt-viewer: output index first
Adam Nemet [Mon, 26 Feb 2018 21:15:47 +0000 (21:15 +0000)]
opt-viewer: output index first

One can start looking at the index while the pages are still generating

llvm-svn: 326123

6 years ago[analyzer] Quickfix: do not overflow in calculating offset in RegionManager
George Karpenkov [Mon, 26 Feb 2018 21:03:06 +0000 (21:03 +0000)]
[analyzer] Quickfix: do not overflow in calculating offset in RegionManager

Addresses https://bugs.llvm.org/show_bug.cgi?id=36206

rdar://37159026

A proper fix would be much harder, and would involve changing the
appropriate code in ExprEngine to be aware of the size limitations of
the type used for addressing.

Differential Revision: https://reviews.llvm.org/D43218

llvm-svn: 326122

6 years ago[Darwin] Specify DWARF 2/4 when running apple accelerator tests.
Davide Italiano [Mon, 26 Feb 2018 20:56:45 +0000 (20:56 +0000)]
[Darwin] Specify DWARF 2/4 when running apple accelerator tests.

These sections will be retired. Also, explicitly list llvm-objdump
as a dependency. This should've been done in the previous commit,
but I failed to squash the two changes together.

Thanks to Adrian for pointing the first problem out in a comment.

llvm-svn: 326121

6 years ago[libcxx] [test] Fix MSVC warnings and errors.
Stephan T. Lavavej [Mon, 26 Feb 2018 20:47:46 +0000 (20:47 +0000)]
[libcxx] [test] Fix MSVC warnings and errors.

test/std/numerics/numeric.ops/exclusive.scan/exclusive_scan.pass.cpp
test/std/numerics/numeric.ops/exclusive.scan/exclusive_scan_init_op.pass.cpp
test/std/numerics/numeric.ops/inclusive.scan/inclusive_scan.pass.cpp
test/std/numerics/numeric.ops/inclusive.scan/inclusive_scan_op.pass.cpp
test/std/numerics/numeric.ops/inclusive.scan/inclusive_scan_op_init.pass.cpp
test/std/numerics/numeric.ops/transform.exclusive.scan/transform_exclusive_scan_init_bop_uop.pass.cpp
test/std/numerics/numeric.ops/transform.inclusive.scan/transform_inclusive_scan_bop_uop.pass.cpp
test/std/numerics/numeric.ops/transform.inclusive.scan/transform_inclusive_scan_bop_uop_init.pass.cpp
Fix MSVC x64 truncation warnings.
warning C4267: conversion from 'size_t' to 'int', possible loss of data

test/std/strings/basic.string/string.modifiers/string_append/push_back.pass.cpp
Fix MSVC uninitialized memory warning.
warning C6001: Using uninitialized memory 'vl'.

test/std/utilities/tuple/tuple.tuple/tuple.cnstr/PR20855_tuple_ref_binding_diagnostics.pass.cpp
Include <cassert> for the assert() macro.

Fixes D43273.

llvm-svn: 326120

6 years ago[X86] Add a custom legalization for (i16 (bitcast v16i1)) and (i32 (bitcast v32i1...
Craig Topper [Mon, 26 Feb 2018 20:32:27 +0000 (20:32 +0000)]
[X86] Add a custom legalization for (i16 (bitcast v16i1)) and (i32 (bitcast v32i1)) without AVX512 to prevent scalarization

Summary:
We have an early DAG combine to turn these patterns into MOVMSK, but that combine doesn't work if the vXi1 type has more elements than the widest legal vXi8 type. Type legalization will eventually split it down to v16i1 or v32i1 and then the bitcast gets legalized to a truncstore and a scalar load. The truncstore will get lowered to a series of extracts and bit math.

This patch adds a custom legalization to use a sign extend and MOVMSK instead. This prevents the eventual scalarization.

Reviewers: spatel, RKSimon, zvi

Reviewed By: RKSimon

Subscribers: mgorny, llvm-commits

Differential Revision: https://reviews.llvm.org/D43593

llvm-svn: 326119

6 years agoFix for LLVM r326109
David Zarzycki [Mon, 26 Feb 2018 20:21:30 +0000 (20:21 +0000)]
Fix for LLVM r326109

llvm-svn: 326118

6 years ago[SLP] Added new test + fixed some checks, NFC.
Alexey Bataev [Mon, 26 Feb 2018 20:01:24 +0000 (20:01 +0000)]
[SLP] Added new test + fixed some checks, NFC.

llvm-svn: 326117

6 years agoRevert "Emit proper CodeView when -gcodeview is passed without the cl driver."
Zachary Turner [Mon, 26 Feb 2018 19:51:29 +0000 (19:51 +0000)]
Revert "Emit proper CodeView when -gcodeview is passed without the cl driver."

This reverts commit e17911006548518634fad66bb8648bcad49a1d64.

This is failing on ASAN bots because asan expects column info,
and it's also failing on some linux bots for unknown reasons which
i need to investigate.

llvm-svn: 326116

6 years ago[InstCombine] Add test cases with vector constants to fpextend.ll
Craig Topper [Mon, 26 Feb 2018 19:36:37 +0000 (19:36 +0000)]
[InstCombine] Add test cases with vector constants to fpextend.ll

llvm-svn: 326115

6 years ago[InstCombine] Switch to using FileCheck instead of grep. Auto-generate checks. NFC
Craig Topper [Mon, 26 Feb 2018 19:36:36 +0000 (19:36 +0000)]
[InstCombine] Switch to using FileCheck instead of grep. Auto-generate checks. NFC

llvm-svn: 326114

6 years agoEmit proper CodeView when -gcodeview is passed without the cl driver.
Zachary Turner [Mon, 26 Feb 2018 19:25:39 +0000 (19:25 +0000)]
Emit proper CodeView when -gcodeview is passed without the cl driver.

Windows debuggers don't work properly when column info is emitted
with lines.  We handled this by checking if the driver mode was
cl, but it's possible to cause the gcc driver to emit codeview as
well, and in that path we were emitting column info with codeview.

Differential Revision: https://reviews.llvm.org/D43700

llvm-svn: 326113

6 years agoAdd "lldb-test breakpoint" command and convert the case-sensitivity test to use it
Pavel Labath [Mon, 26 Feb 2018 18:50:16 +0000 (18:50 +0000)]
Add "lldb-test breakpoint" command and convert the case-sensitivity test to use it

Summary:
The command takes two input arguments: a module to use as a debug target
and a file containing a list of commands. The command will execute each
of the breakpoint commands in the file and dump the breakpoint state
after each one.

The commands are expected to be breakpoint set/remove/etc. commands, but
I explicitly allow any lldb command here, so you can do things like
change setting which impact breakpoint resolution, etc. There is also a
"-persistent" flag, which causes lldb-test to *not* automatically clear
the breakpoint list after each command. Right now I don't use it, but
the idea behind it was that it could be used to test more complex
combinations of breakpoint commands (set+modify, set+disable, etc.).

Right now the command prints out only the basic breakpoint state, but
more information can be easily added there.  To enable easy matching of
the "at least one breakpoint location found" state, the command
explicitly prints out the string "At least one breakpoint location.".

To enable testing of breakpoints set with an absolute paths, I add the
ability to perform rudimentary substitutions on the commands: right now
the string %p is replaced by the directory which contains the command
file (so, under normal circumstances, this will perform the same
substitution as lit would do for %p).

I use this command to rewrite the TestBreakpointCaseSensitivity test --
the test was checking about a dozen breakpoint commands, but it was
launching a new process for each one, so it took about 90 seconds to
run. The new test takes about 0.3 seconds for me, which is approximately
a 300x speedup.

Reviewers: davide, zturner, jingham

Subscribers: luporl, lldb-commits

Differential Revision: https://reviews.llvm.org/D43686

llvm-svn: 326112

6 years agoFix-up for r326106: FindAvailableMemoryRange needs a nullptr as its 5th argument.
Kuba Mracek [Mon, 26 Feb 2018 18:44:43 +0000 (18:44 +0000)]
Fix-up for r326106: FindAvailableMemoryRange needs a nullptr as its 5th argument.

llvm-svn: 326111

6 years agoFix for LLVM r326109
David Zarzycki [Mon, 26 Feb 2018 18:42:30 +0000 (18:42 +0000)]
Fix for LLVM r326109

llvm-svn: 326110

6 years ago[ADT] Simplify and optimize StringSwitch
David Zarzycki [Mon, 26 Feb 2018 18:41:26 +0000 (18:41 +0000)]
[ADT] Simplify and optimize StringSwitch

This change improves incremental rebuild performance on dual Xeon 8168
machines by 54%. This change also improves run time code gen by not
forcing the case values to be lvalues.

llvm-svn: 326109

6 years ago[Driver] Forward opt-remark hotness threshold to LTO
Adam Nemet [Mon, 26 Feb 2018 18:38:11 +0000 (18:38 +0000)]
[Driver] Forward opt-remark hotness threshold to LTO

llvm-svn: 326108

6 years ago[LTO] Support filtering by hotness threshold
Adam Nemet [Mon, 26 Feb 2018 18:37:45 +0000 (18:37 +0000)]
[LTO] Support filtering by hotness threshold

This wires up -pass-remarks-hotness-threshold to LTO and ThinLTO.

Next is to change the clang driver to pass this
with -fdiagnostics-hotness-threshold.

Differential Revision: https://reviews.llvm.org/D41465

llvm-svn: 326107

6 years ago[asan] Be more careful and verbose when allocating dynamic shadow memory
Kuba Mracek [Mon, 26 Feb 2018 18:33:21 +0000 (18:33 +0000)]
[asan] Be more careful and verbose when allocating dynamic shadow memory

FindAvailableMemoryRange can currently overwrite existing memory (by restricting the VM below addresses that are already used). This patch adds a check to make sure we don't restrict the VM space too much. We are also now more explicit about why the lookup failed and print out verbose values.

Differential Revision: https://reviews.llvm.org/D43318

llvm-svn: 326106

6 years ago[MSan] Print current stack on CHECK violation
Alex Shlyapnikov [Mon, 26 Feb 2018 18:27:24 +0000 (18:27 +0000)]
[MSan] Print current stack on CHECK violation

Summary:
Print current stack on CHECK violation to aid debugging and
match other sanitizers functionality.

Reviewers: eugenis

Subscribers: delcypher, llvm-commits, #sanitizers

Differential Revision: https://reviews.llvm.org/D43692

llvm-svn: 326105

6 years ago[X86][AVX] createPSADBW - support 256-bit cases on AVX1 via SplitBinaryOpsAndApply
Simon Pilgrim [Mon, 26 Feb 2018 18:17:25 +0000 (18:17 +0000)]
[X86][AVX] createPSADBW - support 256-bit cases on AVX1 via SplitBinaryOpsAndApply

llvm-svn: 326104

6 years ago[DebugInfo] Support DWARF v5 source code embedding extension
Scott Linder [Mon, 26 Feb 2018 17:32:31 +0000 (17:32 +0000)]
[DebugInfo] Support DWARF v5 source code embedding extension

In DWARF v5 the Line Number Program Header is extensible, allowing values with
new content types. This vendor extension to DWARF v5 allows source text to be
embedded directly in the line tables of the debug line section.

Add new flag (-g[no-]embed-source) to Driver and CC1 which indicates
that source should be passed through to LLVM during CodeGen.

Differential Revision: https://reviews.llvm.org/D42766

llvm-svn: 326102

6 years agoAMDGPU/GlobalISel: Make f64 constants legal
Matt Arsenault [Mon, 26 Feb 2018 17:20:43 +0000 (17:20 +0000)]
AMDGPU/GlobalISel: Make f64 constants legal

llvm-svn: 326101

6 years ago[scudo] Make some tests less Linux-y
Kostya Kortchinsky [Mon, 26 Feb 2018 17:14:44 +0000 (17:14 +0000)]
[scudo] Make some tests less Linux-y

Summary:
Start making the Scudo tests less Linux-y:
- `malloc_usable_size` doesn't exist everywhere, so replace them with
  `__sanitizer_get_allocated_size` which we provide;
- move all the `memalign` related tests into `memalign.c` since it's also not
  available everywhere.

I also noticed that the `memalign.c` was missing a line in one of the loops.

Reviewers: alekseyshl

Reviewed By: alekseyshl

Subscribers: delcypher, #sanitizers, llvm-commits

Differential Revision: https://reviews.llvm.org/D43393

llvm-svn: 326100

6 years ago[CodeGen][DebugInfo] Refactor duplicated code, NFC
Scott Linder [Mon, 26 Feb 2018 16:31:08 +0000 (16:31 +0000)]
[CodeGen][DebugInfo] Refactor duplicated code, NFC

llvm-svn: 326099

6 years ago[InstCombine] allow fdiv folds with less than fully 'fast' ops
Sanjay Patel [Mon, 26 Feb 2018 16:02:45 +0000 (16:02 +0000)]
[InstCombine] allow fdiv folds with less than fully 'fast' ops

Note: gcc appears to allow this fold with -freciprocal-math alone,
but clang/llvm require more than that with this patch. The wording
in the definitions seems fuzzy enough that it could go either way,
but we'll err on the conservative side of FMF interpretation.

This patch also changes the newly created fmul to have FMF propagated
by the last fdiv rather than intersecting the FMF of the fdivs. This
matches the behavior of other folds near here. The new fmul is only
used to produce an intermediate op for the final fdiv result, so it
shouldn't be any stricter than that result. The previous behavior
could result in dropping FMF via other folds in instcombine or CSE.

Differential Revision: https://reviews.llvm.org/D43398

llvm-svn: 326098

6 years ago[X86][AVX] Add AVX1 PSAD tests
Simon Pilgrim [Mon, 26 Feb 2018 15:55:25 +0000 (15:55 +0000)]
[X86][AVX] Add AVX1 PSAD tests

Cleanup check-prefixes to share more AVX/AVX512 codegen checks

llvm-svn: 326097

6 years agoRevert r326092: [gtest] Add PrintTo overload for StringRef.
Ilya Biryukov [Mon, 26 Feb 2018 15:54:59 +0000 (15:54 +0000)]
Revert r326092: [gtest] Add PrintTo overload for StringRef.

It seems to break the following buildbot:
http://lab.llvm.org:8011/builders/sanitizer-windows/builds/24729

Will resubmit after investigating and fixing it.

llvm-svn: 326096

6 years agoFix tabs/spaces indentation problem in TestUnicodeSymbols.py
Adrian McCarthy [Mon, 26 Feb 2018 15:53:31 +0000 (15:53 +0000)]
Fix tabs/spaces indentation problem in TestUnicodeSymbols.py

Differential Revision: https://reviews.llvm.org/D43705

llvm-svn: 326095

6 years ago[CodeGen] Don't omit any redundant information in -debug output
Francis Visoiu Mistrih [Mon, 26 Feb 2018 15:23:42 +0000 (15:23 +0000)]
[CodeGen] Don't omit any redundant information in -debug output

In r322867, we introduced IsStandalone when printing MIR in -debug
output. The default behaviour for that was:

1) If any of MBB, MI, or MO are -debug-printed separately, don't omit any
redundant information.

2) When -debug-printing a MF entirely, don't print any redundant
information.

3) When printing MIR, don't print any redundant information.

I'd like to change 2) to:

2) When -debug-printing a MF entirely, don't omit any redundant information.

Differential Revision: https://reviews.llvm.org/D43337

llvm-svn: 326094

6 years ago[X86][SSE] Regenerate PSAD tests
Simon Pilgrim [Mon, 26 Feb 2018 15:21:58 +0000 (15:21 +0000)]
[X86][SSE] Regenerate PSAD tests

Fixes scary typo in a check that lost the end digit off a reg#...

llvm-svn: 326093

6 years ago[gtest] Add PrintTo overload for StringRef.
Ilya Biryukov [Mon, 26 Feb 2018 15:19:26 +0000 (15:19 +0000)]
[gtest] Add PrintTo overload for StringRef.

Summary:
It was printed using code for generic containers before, resulting in
unreadable output.

Reviewers: sammccall, labath

Reviewed By: sammccall, labath

Subscribers: labath, zturner, llvm-commits

Differential Revision: https://reviews.llvm.org/D43330

llvm-svn: 326092

6 years agoRe-land: "[Support] Replace HashString with djbHash."
Jonas Devlieghere [Mon, 26 Feb 2018 15:16:42 +0000 (15:16 +0000)]
Re-land: "[Support] Replace HashString with djbHash."

This patch removes the HashString function from StringExtraces and
replaces its uses with calls to djbHash from DJB.h.

This change is *almost* NFC. While the algorithm is identical, the
djbHash implementation in StringExtras used 0 as its default seed while
the implementation in DJB uses 5381. The latter has been shown to result
in less collisions and improved avalanching and is used by the DWARF
accelerator tables.

Because some test were implicitly relying on the hash order, I've
reverted to using zero as a seed for the following two files:

  lld/include/lld/Core/SymbolTable.h
  llvm/lib/Support/StringMap.cpp

Differential revision: https://reviews.llvm.org/D43615

llvm-svn: 326091

6 years ago[ELF] - Fix variable name and mistype in comment. NFC.
George Rimar [Mon, 26 Feb 2018 15:16:03 +0000 (15:16 +0000)]
[ELF] - Fix variable name and mistype in comment. NFC.

llvm-svn: 326090

6 years agoRe-commit r324991 "Fix for PR32992. Static const classes not exported."
Hans Wennborg [Mon, 26 Feb 2018 15:03:59 +0000 (15:03 +0000)]
Re-commit r324991 "Fix for PR32992. Static const classes not exported."

Fix for PR32992. Static const classes not exported.

Patch by zahiraam!

(This re-lands the commit, but using S.MarkVariableReferenced instead of
S.PendingInstantiations.push_back, and with an additional test.)

Differential Revision: https://reviews.llvm.org/D42968

llvm-svn: 326089

6 years ago[AMDGPU] Scratch setup fix on AMDPAL gfx9+ merge shader
Tim Renouf [Mon, 26 Feb 2018 14:46:43 +0000 (14:46 +0000)]
[AMDGPU] Scratch setup fix on AMDPAL gfx9+ merge shader

Summary:
With OS type AMDPAL, the scratch descriptor is hardwired to be loaded
from offset 0 of the global information table, whose low pointer is
passed in s0. For a merge shader on gfx9+, it needs to be s8 instead, as
the hardware reserves s0-s7.

Reviewers: kzhuravl

Subscribers: arsenm, nhaehnle, dstuttard, llvm-commits, t-tye, yaxunl, wdng, kzhuravl

Differential Revision: https://reviews.llvm.org/D42203

llvm-svn: 326088

6 years ago[LiveIntervals] Handle moving up dead partial write
Tim Renouf [Mon, 26 Feb 2018 14:42:13 +0000 (14:42 +0000)]
[LiveIntervals] Handle moving up dead partial write

Summary:
In the test case, the machine scheduler moves a dead write to a subreg
up into the middle of a segment of the overall reg's live range, where
the segment had liveness only for other subregs in the reg.
handleMoveUp created an invalid live range, causing an assert a bit
later.

This commit fixes it to handle that situation. The segment is split in
two at the insertion point, and the part after the split, and any
subsequent segments up to the old position, are changed to be defined by
the moved def.

V2: Better test.

Subscribers: MatzeB, nhaehnle, llvm-commits

Differential Revision: https://reviews.llvm.org/D43478

Change-Id: Ibc42445ddca84e79ad1f616401015d22bc63832e
llvm-svn: 326087

6 years agoResolve build bot problems in unittests/Format/FormatTest.cpp
Bjorn Pettersson [Mon, 26 Feb 2018 14:14:11 +0000 (14:14 +0000)]
Resolve build bot problems in unittests/Format/FormatTest.cpp

Summary:
Make the new GetStyleWithEmptyFileName test case independent
of the file system used when running the test. Since the
test is supposed to use the fallback "Google" style we now
use a InMemoryFileSystem to make sure that we do not accidentaly
find a .clang-format file in the real file system. That could
for example happen when having the build directory inside the
llvm och clang repo (as there is a .clang-format file inside
the repos).

Reviewers: vsapsai, jolesiak, krasimir, benhamilton

Reviewed By: krasimir

Subscribers: uabelho, twoh, klimek, cfe-commits

Differential Revision: https://reviews.llvm.org/D43732

llvm-svn: 326086

6 years agoTest commit
David Zarzycki [Mon, 26 Feb 2018 13:05:18 +0000 (13:05 +0000)]
Test commit

llvm-svn: 326085

6 years agoSkip two more ioctl interceptors for NetBSD
Kamil Rytarowski [Mon, 26 Feb 2018 13:00:40 +0000 (13:00 +0000)]
Skip two more ioctl interceptors for NetBSD

Don't intercept:
 - HFSC_IF_ATTACH
 - HFSC_MOD_CLASS

These operations conflict on NetBSD 32-bit with:
 - PRIQ_IF_ATTACH
 - PRIQ_MOD_CLASS

Sponsored by <The NetBSD Foundation>

llvm-svn: 326084

6 years agoExplicitly initialize ForceEnableInt128 to avoid UB
Ilya Biryukov [Mon, 26 Feb 2018 12:06:05 +0000 (12:06 +0000)]
Explicitly initialize ForceEnableInt128 to avoid UB

This fixes an uninitialized value read found by msan.

llvm-svn: 326083

6 years agoRevert "[Support] Replace HashString with djbHash."
Jonas Devlieghere [Mon, 26 Feb 2018 12:05:18 +0000 (12:05 +0000)]
Revert "[Support] Replace HashString with djbHash."

It looks like some of our tests depend on the ordering of hashed values.
I'm reverting my changes while I try to reproduce and fix this locally.

Failing builds:

  lab.llvm.org:8011/builders/lld-x86_64-darwin13/builds/18388
  lab.llvm.org:8011/builders/clang-cmake-x86_64-sde-avx512-linux/builds/6743
  lab.llvm.org:8011/builders/llvm-clang-lld-x86_64-scei-ps4-windows10pro-fast/builds/15607

llvm-svn: 326082

6 years ago[Support] Replace HashString with djbHash.
Jonas Devlieghere [Mon, 26 Feb 2018 11:30:13 +0000 (11:30 +0000)]
[Support] Replace HashString with djbHash.

This removes the HashString function from StringExtraces and replaces
its uses with calls to djbHash from DJB.h

This is *almost* NFC. While the algorithm is identical, the djbHash
implementation in StringExtras used 0 as its seed while the
implementation in DJB uses 5381. The latter has been shown to result in
less collisions and improved avalanching.

https://reviews.llvm.org/D43615
(cherry picked from commit 77f7f965bc9499a9ae768a296ca5a1f7347d1d2c)

llvm-svn: 326081

6 years ago[WebAssembly] Relax constexpr for old standard libraries.
Benjamin Kramer [Mon, 26 Feb 2018 11:07:25 +0000 (11:07 +0000)]
[WebAssembly] Relax constexpr for old standard libraries.

This will still be constexpr when the standard library supports it, but
doesn't force constexpr. Old libraries will get a global constructor,
which is not too bad.

llvm-svn: 326080

6 years ago[LV] Move isLegalMasked* functions from Legality to CostModel
Renato Golin [Mon, 26 Feb 2018 11:06:36 +0000 (11:06 +0000)]
[LV] Move isLegalMasked* functions from Legality to CostModel

All SIMD architectures can emulate masked load/store/gather/scatter
through element-wise condition check, scalar load/store, and
insert/extract. Therefore, bailing out of vectorization as legality
failure, when they return false, is incorrect. We should proceed to cost
model and determine profitability.

This patch is to address the vectorizer's architectural limitation
described above. As such, I tried to keep the cost model and
vectorize/don't-vectorize behavior nearly unchanged. Cost model tuning
should be done separately.

Please see
http://lists.llvm.org/pipermail/llvm-dev/2018-January/120164.html for
RFC and the discussions.

Closes D43208.

Patch by: Hideki Saito <hideki.saito@intel.com>

llvm-svn: 326079

6 years ago[LoopInterchange] Add test case for D43236.
Florian Hahn [Mon, 26 Feb 2018 10:46:25 +0000 (10:46 +0000)]
[LoopInterchange] Add test case for D43236.

llvm-svn: 326078

6 years ago[LoopInterchange] Loops with empty dependency matrix are safe.
Florian Hahn [Mon, 26 Feb 2018 10:45:25 +0000 (10:45 +0000)]
[LoopInterchange] Loops with empty dependency matrix are safe.

The dependency matrix is only empty if no conflicting load/store
instructions have been found. In that case, it is safe to interchange.

For the LLVM test-suite, after this change around 1900 loops are
interchanged, whereas it is 15 before this change. On cortex-a57,
this gives an improvement of -0.57% on the geomean execution
time of SPEC2006, SPEC2000 and the test-suite. There are a
few small perf regressions, but I think we can improve on those
by making the cost model better.

Reviewers: karthikthecool, mcrosier

Reviewed by: karthikthecool

Differential Revision: https://reviews.llvm.org/D43236

llvm-svn: 326077

6 years agoThe final step to close D41278 [MachineCombiner] Improve debug output (NFC).
Andrew V. Tischenko [Mon, 26 Feb 2018 09:43:21 +0000 (09:43 +0000)]
The final step to close D41278 [MachineCombiner] Improve debug output (NFC).
Differential Revision: https://reviews.llvm.org/D41278

llvm-svn: 326074

6 years agoisl: "isl_schedule_get_map: handle trees with divergent filter node parameters"
Tobias Grosser [Mon, 26 Feb 2018 09:26:41 +0000 (09:26 +0000)]
isl: "isl_schedule_get_map: handle trees with divergent filter node parameters"

Also un-revert (isl_pw_*_alloc: add missing check for compatible spaces, Wed Sep
6 12:18:04 2017 +0200).

This patch is a proposed fix to avoid asserts due to stricter space checking
within isl, which resulted in failures when converting a schedule tree to
a schedule map.

llvm-svn: 326073

6 years ago[SCEV] Factor out getUsedLoops
Serguei Katkov [Mon, 26 Feb 2018 09:26:41 +0000 (09:26 +0000)]
[SCEV] Factor out getUsedLoops

The patch introduces the new function in ScalarEvolution to get
all loops used in specified SCEV.

This is a preparation for re-writing isKnownPredicate utility as
described in https://reviews.llvm.org/D42417.

Reviewers: sanjoy, mkazantsev, reames
Reviewed By: sanjoy
Subscribers: llvm-commits
Differential Revision: https://reviews.llvm.org/D43504

llvm-svn: 326072

6 years ago[SCEV] Introduce SCEVPostIncRewriter
Serguei Katkov [Mon, 26 Feb 2018 08:40:18 +0000 (08:40 +0000)]
[SCEV] Introduce SCEVPostIncRewriter

The patch introduces the SCEVPostIncRewriter rewriter which
is similar to SCEVInitRewriter but rewrites AddRec with post increment
value of this AddRec.

This is a preparation for re-writing isKnownPredicate utility as
described in https://reviews.llvm.org/D42417.

Reviewers: sanjoy, mkazantsev, reames
Reviewed By: sanjoy
Subscribers: llvm-commits
Differential Revision: https://reviews.llvm.org/D43499

llvm-svn: 326071

6 years ago[clangd] don't insert new includes if either original header or canonical header...
Eric Liu [Mon, 26 Feb 2018 08:32:13 +0000 (08:32 +0000)]
[clangd] don't insert new includes if either original header or canonical header is already included.

Summary:
Changes:
o Store both the original header and the canonical header in LSP command.
o Also check that both original and canonical headers are not already included
by comparing both resolved header path and written literal includes.

This addresses the use case where private IWYU pragma is defined in a private
header while it would still be preferrable to include the private header, in the
internal implementation file. If we have seen that the priviate header is already
included, we don't try to insert the canonical include.

Reviewers: sammccall

Reviewed By: sammccall

Subscribers: klimek, ilya-biryukov, jkorous-apple, cfe-commits

Differential Revision: https://reviews.llvm.org/D43510

llvm-svn: 326070

6 years ago[XCore] Return true in enableMultipleCopyHints().
Jonas Paulsson [Mon, 26 Feb 2018 08:03:32 +0000 (08:03 +0000)]
[XCore]  Return true in enableMultipleCopyHints().

Enable multiple COPY hints to eliminate more COPYs during register allocation.

Note that this is something all targets should do, see
https://reviews.llvm.org/D38128.

Review: Robert Lytton
llvm-svn: 326069

6 years ago[X86] Add avx1 command line to madd.ll to show splitting and concatenating 256-bit...
Craig Topper [Mon, 26 Feb 2018 07:48:17 +0000 (07:48 +0000)]
[X86] Add avx1 command line to madd.ll to show splitting and concatenating 256-bit operations.

llvm-svn: 326068

6 years ago[SCEV] Extends the SCEVInitRewriter
Serguei Katkov [Mon, 26 Feb 2018 07:08:56 +0000 (07:08 +0000)]
[SCEV] Extends the SCEVInitRewriter

The patch introduces an additional parameter IgnoreOtherLoops to SCEVInitRewriter.
if it is equal to true then rewriter will not invalidate result in case
SCEV depends on other loops then specified during creation.

The patch does not change the default behavior.
This is a preparation for re-writing isKnownPredicate utility as
described in https://reviews.llvm.org/D42417.

Reviewers: sanjoy, mkazantsev, reames
Reviewed By: sanjoy
Subscribers: llvm-commits
Differential Revision: https://reviews.llvm.org/D43498

llvm-svn: 326067

6 years ago[X86] Don't use getZExtValue when we have no idea how large the input elements are.
Craig Topper [Mon, 26 Feb 2018 04:43:24 +0000 (04:43 +0000)]
[X86] Don't use getZExtValue when we have no idea how large the input elements are.

llvm-svn: 326066

6 years ago[X86] Use SelectionDAG::SplitVectorOperand to simplify some code. NFC
Craig Topper [Mon, 26 Feb 2018 02:16:34 +0000 (02:16 +0000)]
[X86] Use SelectionDAG::SplitVectorOperand to simplify some code. NFC

llvm-svn: 326065

6 years ago[X86] Simplify the ReplaceNodeResults code for X86ISD::AVG.
Craig Topper [Mon, 26 Feb 2018 02:16:33 +0000 (02:16 +0000)]
[X86] Simplify the ReplaceNodeResults code for X86ISD::AVG.

This code seemed to try to widen to 128, 256, or 512 bit vectors, but we only create X86ISD::AVG with a power of 2 number of elements. This means the only nodes that need to be legalized are less than 128-bits and need to be widened up to 128 bits.

llvm-svn: 326064

6 years ago[X86] Remove VT.isSimple() check from detectAVGPattern.
Craig Topper [Mon, 26 Feb 2018 02:16:31 +0000 (02:16 +0000)]
[X86] Remove VT.isSimple() check from detectAVGPattern.

Which types are considered 'simple' is a function of the requirements of all targets that LLVM supports. That shouldn't directly affect what types we are able to handle. The remainder of this code checks that the number of elements is a power of 2 and takes care of splitting down to a legal size.

llvm-svn: 326063

6 years ago[www] Update link to analyzer's "Building a Checker in 24 hours" video
Devin Coughlin [Mon, 26 Feb 2018 00:39:25 +0000 (00:39 +0000)]
[www] Update link to analyzer's "Building a Checker in 24 hours" video

The video is now uploaded to YouTube.

llvm-svn: 326062

6 years agoTableGen: Remove VarInit::getFieldType
Nicolai Haehnle [Sun, 25 Feb 2018 20:50:17 +0000 (20:50 +0000)]
TableGen: Remove VarInit::getFieldType

It is redundant with the implementation in TypedInit.

Change-Id: I8ab1fb5c77e4923f7eb3ffae5889f0f8af6093b4

Reviewers: arsenm, craig.topper, tra, MartinO

Subscribers: wdng, llvm-commits

Differential Revision: https://reviews.llvm.org/D43678

llvm-svn: 326061

6 years agoTableGen: Get rid of Init::getFieldInit
Nicolai Haehnle [Sun, 25 Feb 2018 20:50:11 +0000 (20:50 +0000)]
TableGen: Get rid of Init::getFieldInit

Summary:
FieldInit will just rely on the standardized resolving mechanism to give
us DefInits for folding, thus simplifying the code.

Unlike the removal of resolveListElementReference, this shouldn't have
performance implications, because DefInits do not recurse inside their
record.

Change-Id: Id4544c774c9d9ee92f293615af6ecff706453f21

Reviewers: arsenm, craig.topper, tra, MartinO

Subscribers: wdng, llvm-commits

Differential Revision: https://reviews.llvm.org/D43563

llvm-svn: 326060

6 years agoTableGen: Remove Init::resolveListElementReference
Nicolai Haehnle [Sun, 25 Feb 2018 20:50:04 +0000 (20:50 +0000)]
TableGen: Remove Init::resolveListElementReference

Summary:
Resolving a VarListElementInit should just resolve the list and then
take its element. This eliminates a lot of duplicated logic and
simplifies the next steps of refactoring resolveReferences.

This does potentially cause sub-elements of the entire list to be
resolved resulting in more work, but I didn't notice a measurable
change in performance, and a later patch adds a caching mechanism that
covers at least the common case of `var[i]` in a more generic way.

Change-Id: I7b59185b855c7368585c329c31e5be38c5749dac

Reviewers: arsenm, craig.topper, tra, MartinO

Subscribers: wdng, llvm-commits

Differential Revision: https://reviews.llvm.org/D43562

llvm-svn: 326059

6 years agoWhen diagnosing the arguments to alloc_size, report the failing argument using a...
Aaron Ballman [Sun, 25 Feb 2018 20:40:06 +0000 (20:40 +0000)]
When diagnosing the arguments to alloc_size, report the failing argument using a 1-based index instead of a 0-based index for consistency.

Patch by Joel Denny.

llvm-svn: 326058

6 years agoFix a failing assertion with the pointer_with_type_tag attribute when the function...
Aaron Ballman [Sun, 25 Feb 2018 20:28:10 +0000 (20:28 +0000)]
Fix a failing assertion with the pointer_with_type_tag attribute when the function the attribute appertains to is variadic.

Patch by Joel Denny.

llvm-svn: 326057

6 years ago[DebugInfo] Stable sort symbols to remove non-deterministic ordering
Mandeep Singh Grang [Sun, 25 Feb 2018 19:52:34 +0000 (19:52 +0000)]
[DebugInfo] Stable sort symbols to remove non-deterministic ordering

Summary: This fixes failure in DebugInfo/X86/multiple-aranges.ll uncovered by D39245.

Reviewers: rafael, echristo, probinson

Reviewed By: probinson

Subscribers: probinson, llvm-commits, JDevlieghere

Tags: #debug-info

Differential Revision: https://reviews.llvm.org/D39950

llvm-svn: 326056

6 years agoSwitch the default behavior of the Clang<> spelling to opt-in to the C2x attribute...
Aaron Ballman [Sun, 25 Feb 2018 15:34:17 +0000 (15:34 +0000)]
Switch the default behavior of the Clang<> spelling to opt-in to the C2x attribute spellings. NFC to the attribute spellings themselves.

The Clang<> spelling helper generates a spelling for C++11, GNU, and C2x attribute spellings. Previously, users had to manually opt in to the C2x spelling while we cautiously added attributes to that spelling. Now that majority of attributes are exposed in C2x, we can switch the default.

llvm-svn: 326055

6 years agoDocument why the consumed attributes (consumable, callable_when, et al) are not expos...
Aaron Ballman [Sun, 25 Feb 2018 14:54:25 +0000 (14:54 +0000)]
Document why the consumed attributes (consumable, callable_when, et al) are not exposed with a C2x spelling. NFC.

llvm-svn: 326054

6 years agoAdd a C2x spelling for the external_source_symbol and internal_linkage attributes...
Aaron Ballman [Sun, 25 Feb 2018 14:43:45 +0000 (14:43 +0000)]
Add a C2x spelling for the external_source_symbol and internal_linkage attributes in the clang vendor namespace.

Both of these attributes have existing meaning in C code, so there was no reason to exclude them from using the new spelling.

llvm-svn: 326053

6 years agoAdd a C++11 and C2x spelling for the type safety attribute (argument_with_type_tag...
Aaron Ballman [Sun, 25 Feb 2018 14:01:04 +0000 (14:01 +0000)]
Add a C++11 and C2x spelling for the type safety attribute (argument_with_type_tag, pointer_with_type_tag, and type_tag_for_datatype) in the clang vendor namespace.

The TypeTagForDatatype attribute had custom parsing rules that previously prevented it from being supported with square bracket notation. The ArgumentWithTypeTag attribute previously had unnecessary custom parsing that could be handled declaratively.

llvm-svn: 326052

6 years ago[clangd] Address FIXME and fix comment
Kirill Bobyrev [Sun, 25 Feb 2018 07:21:16 +0000 (07:21 +0000)]
[clangd] Address FIXME and fix comment

* Address a FIXME by warning the user that both -run-synchronously and -j X are
  passed.
* Fix a comment to suppress clang-tidy warning by passing the correct argument
  name.

Reviewers: ioeric

Subscribers: ilya-biryukov, jkorous-apple, cfe-commits

Differential Revision: https://reviews.llvm.org/D43671

llvm-svn: 326051

6 years ago[InstSimplify] Add test cases for removal of vector fabs on known positive.
Craig Topper [Sun, 25 Feb 2018 06:51:52 +0000 (06:51 +0000)]
[InstSimplify] Add test cases for removal of vector fabs on known positive.

llvm-svn: 326050

6 years ago[InstSimplify] Remove unused parameter from test cases.
Craig Topper [Sun, 25 Feb 2018 06:51:51 +0000 (06:51 +0000)]
[InstSimplify] Remove unused parameter from test cases.

llvm-svn: 326049

6 years ago[X86] Use SDNode instead of SDPatternOperator. NFC
Craig Topper [Sun, 25 Feb 2018 06:21:04 +0000 (06:21 +0000)]
[X86] Use SDNode instead of SDPatternOperator. NFC

llvm-svn: 326048

6 years ago[clang-tidy/google] Improve the Objective-C global variable declaration check 🔧
Yan Zhang [Sun, 25 Feb 2018 04:11:26 +0000 (04:11 +0000)]
[clang-tidy/google] Improve the Objective-C global variable declaration check 🔧

Summary:
The current Objective-C global variable declaration check restricts naming that is permitted by the Google Objective-C style guide.

The Objective-C style guide states the following:
"Global and file scope constants should have an appropriate prefix. [...] Constants may use a lowercase k prefix when appropriate"
http://google.github.io/styleguide/objcguide#constants

This change fixes the check to allow two or more capital letters as an appropriate prefix. This change intentionally avoids making a decision regarding whether to flag constants that use a two letter prefix (two letter prefixes are reserved by Apple¹ but many projects seem to violate this guideline).

This change eliminates an important category of false positives (constants prefixed with '[A-Z]{2,}') at the cost of introducing a less important category of false negatives (constants prefixed with only '[A-Z]'). The false positives are observed in standard recommended code while the false negatives occur in non-standard unrecommended code. The number of eliminated false positives is expected to be significantly larger than the number of exposed false negatives.



(1)
"Two-letter prefixes like these are reserved by Apple for use in framework classes."
https://developer.apple.com/library/content/documentation/Cocoa/Conceptual/ProgrammingWithObjectiveC/Conventions/Conventions.html

Reviewers: aaron.ballman, Wizard, hokein, benhamilton

Reviewed By: aaron.ballman, Wizard

Subscribers: aaron.ballman, cfe-commits

Differential Revision: https://reviews.llvm.org/D43581

llvm-svn: 326046

6 years ago[RISCV] Enable __int128_t and __uint128_t through clang flag
Mandeep Singh Grang [Sun, 25 Feb 2018 03:58:23 +0000 (03:58 +0000)]
[RISCV] Enable __int128_t and __uint128_t through clang flag

Summary:
If the flag -fforce-enable-int128 is passed, it will enable support for __int128_t and __uint128_t types.
This flag can then be used to build compiler-rt for RISCV32.

Reviewers: asb, kito-cheng, apazos, efriedma

Reviewed By: asb, efriedma

Subscribers: shiva0217, efriedma, jfb, dschuff, sdardis, sbc100, jgravelle-google, aheejin, rbar, johnrusso, simoncook, jordy.potman.lists, sabuasal, niosHD, cfe-commits

Differential Revision: https://reviews.llvm.org/D43105

llvm-svn: 326045

6 years ago[TargetLowering] SimplifyDemandedVectorElts - pass demanded elts through ADD/SUB ops
Simon Pilgrim [Sat, 24 Feb 2018 20:59:14 +0000 (20:59 +0000)]
[TargetLowering] SimplifyDemandedVectorElts - pass demanded elts through ADD/SUB ops

llvm-svn: 326044

6 years ago[TargetLowering] SimplifyDemandedVectorElts - pass demanded elts through TRUNCATE ops
Simon Pilgrim [Sat, 24 Feb 2018 19:28:34 +0000 (19:28 +0000)]
[TargetLowering] SimplifyDemandedVectorElts - pass demanded elts through TRUNCATE ops

llvm-svn: 326043

6 years ago[X86] Add cvt tests to avx512vl-intrinsics-fast-isel.ll
Craig Topper [Sat, 24 Feb 2018 18:58:08 +0000 (18:58 +0000)]
[X86] Add cvt tests to avx512vl-intrinsics-fast-isel.ll

llvm-svn: 326042

6 years ago[X86] Allow int_x86_sse2_cvtps2dq and int_x86_avx_cvt_ps2dq_256 to select EVEX encode...
Craig Topper [Sat, 24 Feb 2018 18:58:07 +0000 (18:58 +0000)]
[X86] Allow int_x86_sse2_cvtps2dq and int_x86_avx_cvt_ps2dq_256 to select EVEX encoded instructions.

llvm-svn: 326041

6 years ago[X86] Remove GCCBuiltin from some intrinsics that are no longer used by clang.
Craig Topper [Sat, 24 Feb 2018 18:58:02 +0000 (18:58 +0000)]
[X86] Remove GCCBuiltin from some intrinsics that are no longer used by clang.

llvm-svn: 326040

6 years ago[X86] Remove some masked cvt builtins that can be replaced with legacy sse/avx buiilt...
Craig Topper [Sat, 24 Feb 2018 18:55:13 +0000 (18:55 +0000)]
[X86] Remove some masked cvt builtins that can be replaced with legacy sse/avx buiiltins and a select.

llvm-svn: 326039

6 years agoAdd a C++11 and C2x spelling for the objc_bridge_related attribute in the clang vendo...
Aaron Ballman [Sat, 24 Feb 2018 17:37:37 +0000 (17:37 +0000)]
Add a C++11 and C2x spelling for the objc_bridge_related attribute in the clang vendor namespace.

This attribute has custom parsing rules that previously prevented it from being supported with square bracket notation.

llvm-svn: 326038

6 years agoRevert "StructurizeCFG: Test for branch divergence correctly"
Adam Nemet [Sat, 24 Feb 2018 17:29:09 +0000 (17:29 +0000)]
Revert "StructurizeCFG: Test for branch divergence correctly"

This reverts commit r325881.

Breaks many bots

llvm-svn: 326037

6 years agoAdd a C++11 and C2x spelling for the availability attribute in the clang vendor names...
Aaron Ballman [Sat, 24 Feb 2018 17:16:42 +0000 (17:16 +0000)]
Add a C++11 and C2x spelling for the availability attribute in the clang vendor namespace.

This attribute has custom parsing rules that previously prevented it from being supported with square bracket notation. Rework the clang attribute argument parsing to be more easily extended for other custom-parsed attributes.

llvm-svn: 326036

6 years ago[DebugInfo] Fix buildbot failure on non-X86 targets
Scott Linder [Sat, 24 Feb 2018 16:25:43 +0000 (16:25 +0000)]
[DebugInfo] Fix buildbot failure on non-X86 targets

llvm-svn: 326035

6 years ago[X86][SSE] combineSubToSubus - support v8i64 handling from SSSE3
Simon Pilgrim [Sat, 24 Feb 2018 14:06:39 +0000 (14:06 +0000)]
[X86][SSE] combineSubToSubus - support v8i64 handling from SSSE3

Our UMIN/UMAX, vector truncation and shuffle combining is good enough to efficiently handle v8i64 with the number of leading zeros that are necessary for PSUBUS.

llvm-svn: 326034

6 years ago[X86][SSE] combineSubToSubus - support v8i32 handling from SSSE3 (not SSE41)
Simon Pilgrim [Sat, 24 Feb 2018 13:39:13 +0000 (13:39 +0000)]
[X86][SSE] combineSubToSubus - support v8i32 handling from SSSE3 (not SSE41)

Now that UMIN etc are Legal/Custom for SSE2+, we can efficiently match SUBUS v8i32 cases from SSSE3 which can perform efficient truncation with PSHUFB.

llvm-svn: 326033

6 years ago[ubsan-minimal] Fix the ubsan_minimal debug build (COMPILER_RT_DEBUG=1) on macOS.
Dan Liew [Sat, 24 Feb 2018 13:14:44 +0000 (13:14 +0000)]
[ubsan-minimal] Fix the ubsan_minimal debug build (COMPILER_RT_DEBUG=1) on macOS.

`ubsan_minimal` makes use of the `_sanitizer::atomic_load` function.
This function uses the `DCHECK` macro which in debug builds will use
the `_sanitizer::CheckFailed` function.

This function is part of `sanitizer_common` but `ubsan_minimal` doesn't
use this so the implementation is missing which leads to link failures
on macOS when trying to link `libclang_rt.ubsan_minimal_osx_dynamic.dylib`.
This is in contrast to the BFD linker on Linux which doesn't seem to care
about the missing symbol.

A basic implementation of `_sanitizer::CheckFailed` has been added to
the `ubsan_minimal` debug build to avoid the link error. The
implementation could definitely be improved but I don't know which
functions can be used in this context so I decided to restrict myself to
functions only being used in `ubsan_minimal` already.

llvm-svn: 326032

6 years ago[X86][SSE] combineSubToSubus - begun generalizing to work with any type sizes with...
Simon Pilgrim [Sat, 24 Feb 2018 12:44:12 +0000 (12:44 +0000)]
[X86][SSE] combineSubToSubus - begun generalizing to work with any type sizes with SplitBinaryOpsAndApply

llvm-svn: 326030

6 years agoFix spelling in comment. NFCI.
Simon Pilgrim [Sat, 24 Feb 2018 12:27:02 +0000 (12:27 +0000)]
Fix spelling in comment. NFCI.

llvm-svn: 326029

6 years ago[Sparc] Return true in enableMultipleCopyHints().
Jonas Paulsson [Sat, 24 Feb 2018 08:24:31 +0000 (08:24 +0000)]
[Sparc]  Return true in enableMultipleCopyHints().

Enable multiple COPY hints to eliminate more COPYs during register allocation.

Note that this is something all targets should do, see
https://reviews.llvm.org/D38128.

Review: James Y Knight
llvm-svn: 326028

6 years agoCleanup __config indention NFC
Logan Chien [Sat, 24 Feb 2018 07:57:32 +0000 (07:57 +0000)]
Cleanup __config indention  NFC

This commit indents each level by two space characters, e.g.

#if defined(CONDITION)
#  define _LIBCPP_NAME VALUE
#else
#  define _LIBCPP_NAME VALUE
#endif

The simple #ifndef, #define, and #endif sequences are not indented, e.g.

#ifndef _LIBCPP_NAME
#define _LIBCPP_NAME ...
#endif

llvm-svn: 326027

6 years ago[X86] Remove GCCBuiltin from some intrinsics that are no longer used by clang.
Craig Topper [Sat, 24 Feb 2018 07:02:24 +0000 (07:02 +0000)]
[X86] Remove GCCBuiltin from some intrinsics that are no longer used by clang.

llvm-svn: 326026

6 years ago[cfi] Lazy initialization of CFI interceptors
Vitaly Buka [Sat, 24 Feb 2018 06:58:56 +0000 (06:58 +0000)]
[cfi] Lazy initialization of CFI interceptors

Summary:
Interceptors initialization may need to allocate memory. So if we initialize too
early we can crash in non initialized allocator.

Reviewers: pcc, eugenis

Subscribers: llvm-commits

Differential Revision: https://reviews.llvm.org/D43669

llvm-svn: 326025

6 years agoRemove unused variable. We should be warning-free.
Daniel Jasper [Sat, 24 Feb 2018 06:57:47 +0000 (06:57 +0000)]
Remove unused variable. We should be warning-free.

llvm-svn: 326024

6 years agoMake module use diagnostics refer to the top-level module
Daniel Jasper [Sat, 24 Feb 2018 06:54:09 +0000 (06:54 +0000)]
Make module use diagnostics refer to the top-level module

All use declarations need to be directly placed in the top-level module
anyway, knowing the submodule doesn't really help. The header that has
the offending #include can easily be seen in the diagnostics source
location.

Review: https://reviews.llvm.org/D43673
llvm-svn: 326023

6 years ago[X86] Remove __builtin_ia32_permvarsf256_mask and __builtin_ia32_permvarsi256_mask...
Craig Topper [Sat, 24 Feb 2018 06:46:42 +0000 (06:46 +0000)]
[X86] Remove __builtin_ia32_permvarsf256_mask and __builtin_ia32_permvarsi256_mask and use the avx2 unmasked versions and a select instead.

llvm-svn: 326022

6 years ago[CFG] Keep speculatively working around an MSVC compiler crash.
Artem Dergachev [Sat, 24 Feb 2018 03:54:22 +0000 (03:54 +0000)]
[CFG] Keep speculatively working around an MSVC compiler crash.

Replace if() with a switch(). Because random changes in the code seem to
suppress the crash.

Story so far:
r325966 - Crash introduced.
r325969 - Speculative fix had no effect.
r325978 - Tried to bisect the offending function, crash suddenly disappeared.
r326016 - After another random change in the code, bug appeared again.

llvm-svn: 326021

6 years ago[X86] Use SelectionDAG::getNot instead of implementing manually. NFC
Craig Topper [Sat, 24 Feb 2018 03:15:54 +0000 (03:15 +0000)]
[X86] Use SelectionDAG::getNot instead of implementing manually. NFC

llvm-svn: 326020

6 years ago[CFG] Provide construction contexts for temporaries in conditional operators.
Artem Dergachev [Sat, 24 Feb 2018 03:10:15 +0000 (03:10 +0000)]
[CFG] Provide construction contexts for temporaries in conditional operators.

When a lifetime-extended temporary is on a branch of a conditional operator,
materialization of such temporary occurs after the condition is resolved.

This change allows us to understand, by including the MaterializeTemporaryExpr
in the construction context, the target for temporary materialization in such
cases.

Differential Revision: https://reviews.llvm.org/D43483

llvm-svn: 326019