Commit Graph

274111 Commits

Author SHA1 Message Date
Simon Pilgrim cded82837d Use DAG::getBitcast() helper. NFCI.
llvm-svn: 315815
2017-10-14 17:14:42 +00:00
Ed Maste 48652257bb libunwind: document tested FreeBSD configs and sort OS list
libunwind is known to work on FreeBSD i386, amd64 (x86_64) and arm64.
It is the unwinder provided by the base system on all of those
architectures.

While here sort the OS list.

Differential Revision:	https://reviews.llvm.org/D38900

llvm-svn: 315814
2017-10-14 17:04:04 +00:00
Konstantin Zhuravlyov 716af741e9 llvm-readobj: Print AMDGPU note type names
Differential Revision: https://reviews.llvm.org/D38751

llvm-svn: 315813
2017-10-14 16:43:46 +00:00
Konstantin Zhuravlyov 219066bab8 AMDGPU: Improve note directive verification in assembler
- Do not allow amd_amdgpu_isa directives on non-amdgcn architectures
  - Do not allow amd_amdgpu_hsa_metadata on non-amdhsa OSes
  - Do not allow amd_amdgpu_pal_metadata on non-amdpal OSes

Differential Revision: https://reviews.llvm.org/D38750

llvm-svn: 315812
2017-10-14 16:15:28 +00:00
Benjamin Kramer 2b8ad7312d Re-land r315787, "[Sema] Warn about unused variables if we can constant evaluate the initializer."
The warnings in libc++ tests were fixed in the meantime.

llvm-svn: 315811
2017-10-14 15:59:34 +00:00
Konstantin Zhuravlyov eda425edd4 AMDGPU: Do not emit deprecated notes for code object v3
Differential Revision: https://reviews.llvm.org/D38749

llvm-svn: 315810
2017-10-14 15:59:07 +00:00
Benjamin Kramer 346bd6a208 Placate unused variable warnings uncovered by improvements to clang's -Wunused-variable
llvm-svn: 315809
2017-10-14 15:52:38 +00:00
Konstantin Zhuravlyov 9c05b2bc3b AMDGPU: Add support for isa version note
- Emit NT_AMD_AMDGPU_ISA
  - Add assembler parsing for isa version directive
    - If isa version directive does not match command line arguments, then return error

Differential Revision: https://reviews.llvm.org/D38748

llvm-svn: 315808
2017-10-14 15:40:33 +00:00
Simon Pilgrim f367c27d2d [X86][SSE] Support combining AND(EXTRACT(SHUF(X)), C) -> EXTRACT(SHUF(X))
If we are applying a byte mask to a value extracted from a shuffle, see if we can combine the mask into shuffle.

Fixes the last issue with PR22415

llvm-svn: 315807
2017-10-14 15:01:36 +00:00
NAKAMURA Takumi 93638b751a Revert rL315787, "[Sema] Warn about unused variables if we can constant evaluate the initializer."
check-libcxx dislikes it.

llvm-svn: 315806
2017-10-14 14:46:04 +00:00
Yaxun Liu 98f0c43f85 Fix build failure on android due to missing std::to_string()
llvm-svn: 315805
2017-10-14 12:51:52 +00:00
Yaxun Liu c2a87a05f1 [OpenCL] Emit enqueued block as kernel
In OpenCL the kernel function and non-kernel function has different calling conventions.
For certain targets they have different argument ABIs. Also kernels have special function
attributes and metadata for runtime to launch them.

The blocks passed to enqueue_kernel is supposed to be executed as kernels. As such,
the block invoke function should be emitted as kernel with proper calling convention and
argument ABI.

This patch emits enqueued block as kernel. If a block is both called directly and passed
to enqueue_kernel, separate functions will be generated.

Differential Revision: https://reviews.llvm.org/D38134

llvm-svn: 315804
2017-10-14 12:23:50 +00:00
NAKAMURA Takumi 09c234f857 Revert rL315721, "Handle shared and lazy symbol in the gnu hash construction."
It broke check-libcxx with stage1-clang and stage1-lld.

llvm-svn: 315803
2017-10-14 12:21:49 +00:00
Craig Topper f7e777763d [X86] Add patterns for vzmovl+cvtpd2dq/cvttpd2dq with a load.
llvm-svn: 315802
2017-10-14 07:04:48 +00:00
Craig Topper 61010a85b8 [X86] Add AVX512 versions of VCVTPD2PS to load folding tables.
llvm-svn: 315801
2017-10-14 05:55:43 +00:00
Craig Topper ee277e190c [X86] Add patterns for vzmovl+cvtpd2ps with a load.
llvm-svn: 315800
2017-10-14 05:55:42 +00:00
Craig Topper aec05a9303 [X86] Remove some patterns for bitcasted alignednonedtemporalloads.
These select the same instruction as the non-bitcasted pattern. So this provides no additional value.

llvm-svn: 315799
2017-10-14 04:18:11 +00:00
Craig Topper 009f0aaeb0 [X86] Remove unnecessary bitconverts as the root of patterns for zero extended VCVTPD2UDQZ128rr and VCVTTPD2UDQZ128rr.
We don't need a bitconvert as a root pattern in these cases. The types in the other parts of the pattern are sufficient to express the behavior of these instructions.

llvm-svn: 315798
2017-10-14 04:18:10 +00:00
Craig Topper d746747d03 [X86] Add additional patterns for folding loads with 128-bit VCVTDQ2PD and VCVTUDQ2PD.
This matches the patterns we have for the SSE/AVX version.

This is a prerequisite for D38714.

llvm-svn: 315797
2017-10-14 04:18:09 +00:00
Craig Topper 134241e4af [X86] Add AVX512 flavors of VCVTDQ2PD plus VCVTUDQ2PD to the load folding tables.
llvm-svn: 315796
2017-10-14 04:18:08 +00:00
Craig Topper 0b64e67b0d [X86] Remove TB_NO_REVERSE from VCVTDQ2PDYrr and VCVTPS2PDYrr in the load folding tables.
I believe these were added incorrectly under the belief that the load size was smaller than the input register size, but that's not true.

llvm-svn: 315795
2017-10-14 04:18:07 +00:00
Craig Topper 53b0cb7fa9 [X86] Add an additional isel pattern to CVTDQ2PDrm/VCVTDQ2PDrm to enable load folding without the peephole pass.
This pattern is already used in AVX512VL version of these instructions. Though AVX512VL version is missing other patterns.

llvm-svn: 315794
2017-10-14 04:18:06 +00:00
Jordan Rose e55d9a1403 Revert "lit.py: Add new %{shared_output(LABEL)} substitution"
This reverts r315697 and my ill-fated attempts to fix it on Windows.
I'll try again when I get access to a Windows machine.

llvm-svn: 315793
2017-10-14 04:01:27 +00:00
Jordan Rose a33a17605d lit.py: Give up and disable the new shared-output.py test on Windows
"No such file or directory: C:\\...\\tests\\Output\\shared-output.py.tmp/Output/Shared/SHARED.tmp"

And yet other forward-slashes don't seem to be causing the same
problem. I'll see if I can get ahold of a Windows machine to poke at
this directly later.

llvm-svn: 315792
2017-10-14 03:33:46 +00:00
Yaxun Liu adde4e4c01 Fix assembler for alloca of multiple elements in non-zero addr space
Currently llvm assembler emits parsing error for valid IR assembly

alloca i32, i32 9, addrspace(5)
when alloca addr space is 5.

This patch fixes that.

Differential Revision: https://reviews.llvm.org/D38713

llvm-svn: 315791
2017-10-14 03:23:18 +00:00
Jakub Kuderski 369e85a900 [Dominators] Remove the NCA check
Summary:
This patch removes the `verifyNCD` check.

The reason for this is that the other checks are sufficient to prove or disprove correctness of any DominatorTree, and that `verifyNCD` doesn't provide (in my option) better error messages then the other ones.
Additionally, this should give a (small) improvement to the total verification time, as the check is O(n), and checking the sibling property takes O(n^3).

Reviewers: dberlin, grosser, davide, brzycki

Reviewed By: brzycki

Subscribers: llvm-commits

Differential Revision: https://reviews.llvm.org/D38802

llvm-svn: 315790
2017-10-14 03:00:56 +00:00
Vedant Kumar 1963f51f14 [llvm-cov] Factor out logic to iterate over line coverage stats (NFC)
There were two copies of the logic needed to construct a line stats
object for each line in a range: this patch brings it down to one. In
the future, this will make it easier for IDE clients to display coverage
in-line in source editors. To do that, we just need to move the new
LineCoverageIterator class to libCoverage.

llvm-svn: 315789
2017-10-14 02:27:29 +00:00
Daniel Sanders 0eb929b08b [globalisel][tablegen] Fix an unused variable warning caused by a typo (corrected OtherInsnID->OtherOpIdx).
The tests were passing by luck since the instruction ID and operand index happened to be the same.

llvm-svn: 315788
2017-10-14 01:51:46 +00:00
Benjamin Kramer 819ec01ce3 [Sema] Warn about unused variables if we can constant evaluate the initializer.
If the variable construction can be constant evaluated it doesn't have
side effects, so removing it is always safe. We only try to evaluate
variables that are unused, there should be no impact on compile time.

Differential Revision: https://reviews.llvm.org/D38678

llvm-svn: 315787
2017-10-14 01:30:49 +00:00
Vedant Kumar aa4ea5fb45 [ubsan] Don't emit function signatures for non-static member functions
The function sanitizer only checks indirect calls through function
pointers. This excludes all non-static member functions (constructor
calls, calls through thunks, etc. all use a separate code path). Don't
emit function signatures for functions that won't be checked.

Apart from cutting down on code size, this should fix a regression on
Linux caused by r313096. For context, see the mailing list discussion:

r313096 - [ubsan] Function Sanitizer: Don't require writable text segments

Testing: check-clang, check-ubsan

Differential Revision: https://reviews.llvm.org/D38913

llvm-svn: 315786
2017-10-14 01:23:30 +00:00
Alex Lorenz d5bf436d3a [Lex] Avoid out-of-bounds dereference in SkipLineComment
Credit to OSS-Fuzz for discovery:
https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=3145

rdar://34526482

llvm-svn: 315785
2017-10-14 01:18:30 +00:00
Richard Smith 40e202f7d9 Fix backwards warning for use of C++17 attributes-on-namespaces-and-enumerators feature.
llvm-svn: 315784
2017-10-14 00:56:24 +00:00
Daniel Sanders ab3a464482 [globalisel][tablegen] Fix undefined references to dump()
Two debugging statements snuck into the commit.

llvm-svn: 315783
2017-10-14 00:56:01 +00:00
Jordan Rose fddfb5ad4c lit.py: Previous test fix was a red herring; backslashes are escapes
I don't have access to a Windows machine at the moment, so if this
doesn't fix it I'll just revert for now.

llvm-svn: 315782
2017-10-14 00:49:19 +00:00
Quentin Colombet dc2da06c55 [AArch64][RegisterBankInfo] Use the statically computed mappings for COPY
We use to resort on the generic implementation to get the mappings for
COPYs. The generic implementation resorts on table lookup and
dynamically allocated objects to get the valid mappings.

Given we already know how to map G_BITCAST and have the static mappings
for them, use that code path for COPY as well. This is much more
efficient.

Improve the compile time of RegBankSelect by up to 20%.

Note: When we eventually generate all the mappings via TableGen, we
wouldn't have to do that dance to shave compile time. The intent of this
change was to make sure that moving to static structure really pays off.

NFC.

llvm-svn: 315781
2017-10-14 00:43:48 +00:00
Daniel Sanders bfa9e2cae7 [globalisel][tablegen] Simplify named operand/operator lookups and fix a wrong-code bug this revealed.
Summary:
Operand variable lookups are now performed by the RuleMatcher rather than
searching the whole matcher hierarchy for a match. This revealed a wrong-code
bug that currently affects ARM and X86 where patterns that use a variable more
than once in the match pattern will be imported but won't check that the
operands are identical. This can cause the tablegen-erated matcher to
accept matches that should be rejected.

Depends on D36569

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

Subscribers: aemerson, igorb, llvm-commits, kristof.beyls

Differential Revision: https://reviews.llvm.org/D36618

llvm-svn: 315780
2017-10-14 00:31:58 +00:00
Jordan Rose aafbc1c4db lit.py: Fix new test harder for systems that don't use / as os.path.sep
I didn't think about '%{inputs}' having the same problem. This one
should be a fully Windows path name.

llvm-svn: 315779
2017-10-14 00:26:48 +00:00
Kostya Serebryany fc3079963f [libFuzzer] print a better warning if we hit the ld bug
llvm-svn: 315778
2017-10-14 00:07:11 +00:00
Evgeniy Stepanov 4fb209ede2 [asan] Deflake one test by running it 3 times.
The test seems to trigger an android platform bug under load.

llvm-svn: 315777
2017-10-13 23:57:08 +00:00
George Karpenkov cb24b14995 Allow building libFuzzer tests in two-stage compiler-rt build.
llvm-svn: 315776
2017-10-13 23:50:53 +00:00
Evgeniy Stepanov f156c932ae [cfi] Use %ld_flags_rpath_* substitutions in tests (NFC)
llvm-svn: 315775
2017-10-13 23:33:12 +00:00
Alex Lorenz 9ce566fc18 Revert r315738
The ParsedSourceRange class does not work correctly on Windows with the ':'
drive separators

llvm-svn: 315774
2017-10-13 22:47:44 +00:00
Jordan Rose f4fd5938e7 lit.py: Fix new test for systems that don't use / as os.path.sep
llvm-svn: 315773
2017-10-13 22:46:40 +00:00
Benjamin Kramer 17ba669ad9 [Sema] Avoid iterator invalidation when code completing.
It's possible for the code completion consumer to add new decls to the
current scope while lookup happens on it. Avoid this by making a copy
first.

Sadly I wasn't able to get a self-contained test case for this as it
requires code completion + precompiled preamble + the stars aligning to
deserialize at exactly the right time.

llvm-svn: 315772
2017-10-13 22:14:34 +00:00
George Karpenkov a3cd5247b3 Allow building libFuzzer in two-stage compiler-rt build
When LLVM_BUILD_EXTERNAL_COMPILER_RT option is set to true,
all of projects in compiler-rt are built with a freshly-built compiler using
a recursive CMake invocation.
(e.g. that's how compiler-rt is used in Swift)

Just now I have noticed that libFuzzer binaries were missing in such a case,
and ninja fuzzer returned "no such target", while ninja asan worked just fine.

To my surprise, the list of allowed targets was actually hardcoded in Clang!
While the current setup is clearly suboptimal, for the lack of a better fix
I'm just adding `fuzzer` to a list of `compiler-rt` targets.

Differential Revision: https://reviews.llvm.org/D38904

llvm-svn: 315771
2017-10-13 22:03:09 +00:00
Alex Shlyapnikov 29d3ba7576 [Sanitizers] Always build libFuzzer with frame pointers.
Lacking frame pointers, sanitized fuzzers collect bogus stack
traces and the set of stack traces grows indefinitely, leading to OOMs.

llvm-svn: 315770
2017-10-13 21:57:43 +00:00
Krzysztof Parzyszek a7e5c84590 Revert r315763: "[Hexagon] Rangify some loops, NFC"
Broke some builds (using libstdc++).

llvm-svn: 315769
2017-10-13 21:57:11 +00:00
Craig Topper f6c69564e7 [X86] Use X86ISD::VBROADCAST in place of v2f64 X86ISD::MOVDDUP when AVX2 is available
This is particularly important for AVX512VL where we are better able to recognize the VBROADCAST loads to fold with other operations.

For AVX512VL we now use X86ISD::VBROADCAST for all of the patterns and remove the 128-bit X86ISD::VMOVDDUP.

We may be able to use this for AVX1 as well which would allow us to remove more isel patterns.

I also had to add X86ISD::VBROADCAST as a node to call combineShuffle for so that we treat it similar to X86ISD::MOVDDUP.

Differential Revision: https://reviews.llvm.org/D38836

llvm-svn: 315768
2017-10-13 21:56:48 +00:00
Craig Topper 526b70a089 [X86] Use fsub in the movddup scheduling tests to prevent a future patch from folding movddup as a broadcast load.
llvm-svn: 315767
2017-10-13 21:56:45 +00:00
Rafael Espindola ea413cbacf Give shared symbols priority over lazy ones.
This matches the behavior of gold and bfd. It also matches lld's own
behavior when the shared symbol is seen first

llvm-svn: 315766
2017-10-13 21:52:33 +00:00