Commit Graph

275861 Commits

Author SHA1 Message Date
Jonas Hahnfeld aeb40adabf Remove const from variables with dynamic memory
Allocated memory is typically not 'const' if it needs to be freed.
This patch removes around 50 wrong const attributes, modifies the
corresponding functions and finally gets rid of some const_casts.
These have especially been strange for __kmp_str_fname_free() that
added a 'const' to call __kmp_str_free() which removed it again.

Two minor cleanups that I performed in this process:
 * __kmp_tool_libraries now lives in kmp_settings.cpp as it is
   used nowhere else.
 * __kmp_msg_empty was removed as it was never used and Clang
   now complained that it was assigned a string literal that
   is 'const char *'.

Differential Revision: https://reviews.llvm.org/D39755

llvm-svn: 317797
2017-11-09 15:52:25 +00:00
Alex Bradbury 18ff303bed [RISCV] Re-generate test/CodeGen/RISCV/alu32.ll using update_llc_test_checks.py
No real change, but makes it marginally easier to merge the remainder of the
out-of-tree patches.

llvm-svn: 317796
2017-11-09 15:45:42 +00:00
Pavel Labath 1ebc85f86f llgs-tests: Replace the "log+return false" pattern with llvm::Error
Summary:
These tests used to log the error message and return plain bool mainly
because at the time they we written, we did not have a nice way to
assert on llvm::Error values. That is no longer true, so replace this
pattern with a more idiomatic approach.

As a part of this patch, I also move the formatting of
GDBRemoteCommunication::PacketResult values out of the test code, as
that can be useful elsewhere.

Reviewers: zturner, eugene

Subscribers: mgorny, lldb-commits

Differential Revision: https://reviews.llvm.org/D39790

llvm-svn: 317795
2017-11-09 15:45:09 +00:00
Krasimir Georgiev 818da9bb29 [clang-format] Sort using declarations by splitting on '::'
Summary: This patch improves using declarations sorting.

Reviewers: bkramer

Reviewed By: bkramer

Subscribers: cfe-commits, klimek

Differential Revision: https://reviews.llvm.org/D39786

llvm-svn: 317794
2017-11-09 15:41:23 +00:00
Krasimir Georgiev 1696bb6523 [clang-format] Apply a clang-tidy suggestion, NFC
llvm-svn: 317793
2017-11-09 15:12:17 +00:00
Pavel Labath 0ccb256dae Add a unit test for ClangASTContext template arguments handling
I am planning to make changes to this piece of code, so I wrote this
test to add more coverage to it first.

llvm-svn: 317792
2017-11-09 15:06:31 +00:00
Alex Bradbury 8c345c5aa9 [RISCV] MC layer support for the standard RV32A instruction set extension
llvm-svn: 317791
2017-11-09 15:00:03 +00:00
Simon Pilgrim 89d31658e5 Fix 'not all control paths return a value' warning on MSVC builds
llvm-svn: 317790
2017-11-09 14:56:17 +00:00
Dave Lee 17307d9d33 Reapply: Allow yaml2obj to order implicit sections for ELF
Summary:
This change allows yaml input to control the order of implicitly added sections
(`.symtab`, `.strtab`, `.shstrtab`). The order is controlled by adding a
placeholder section of the given name to the Sections field.

This change is to support changes in D39582, where it is desirable to control
the location of the `.dynsym` section.

This reapplied version fixes:
  1. use of a function call within an assert
  2. failing lld test which has an unnamed section
  3. incorrect section count when given an unnamed section

Additionally, one more test to cover the unnamed section failure.

Reviewers: compnerd, jakehehrlich

Reviewed By: jakehehrlich

Subscribers: llvm-commits

Differential Revision: https://reviews.llvm.org/D39749

llvm-svn: 317789
2017-11-09 14:53:43 +00:00
Alex Bradbury a47514ce3f [RISCV] MC layer support for the standard RV32M instruction set extension
llvm-svn: 317788
2017-11-09 14:46:30 +00:00
Jonas Hahnfeld c60300333e [OMPT] Fix test cancel_parallel.c
If a parallel region is cancelled, execution resumes at the end
of the structured block. That is why this test cannot use the
"normal" macros that print right after inserting the label.
Instead it previously printed the addresses before the pragma
and swapped the checks compared to the other tests.

However, this does not work because FileChecks '*' is greedy
so that RETURN_ADDRESS always matched the second address. This
makes the test fail when an "overflow" occurrs and the first
address matches the value of codeptr_ra.

I discovered this on my MacBook but I'm unable to reproduce the
failure with the current version. Nevertheless we should fix this
problem to avoid that this test fails later after an unrelated change.

Differential Revision: https://reviews.llvm.org/D39708

llvm-svn: 317787
2017-11-09 14:26:14 +00:00
Jonas Hahnfeld 380346fce1 [OMPT] Add support for testing return addresses on POWER
Return addresses are determined based on the address of a label
that is inserted directly after a pragma / API call. In some cases
the tests can assume a known number of instructions between the
addresses. However, the instructions and their encoded lengths
depend on the target that the test is compiled on.

Firstly, this patch refactors the macro print_current_address() to
allow such target dependent modifications and adds information for
the observed instructions on POWER. Secondly, it adapts the related
macro print_fuzzy_address() to reuse much of "hacky" code and fixes
the used formatting strings in the printf() call. Finally, it also
adds documentation about how these macros are intended to work.

Differential Revision: https://reviews.llvm.org/D39699

llvm-svn: 317786
2017-11-09 14:26:12 +00:00
Andrew V. Tischenko f8c75b8794 Sched model improving on btver2: JFPU01 resource, vtestp* for xmm.
Differential Revision: https://reviews.llvm.org/D39802

llvm-svn: 317785
2017-11-09 14:19:59 +00:00
Krasimir Georgiev 112c2e96c8 [clang-format] Fix a clang-tidy finding, NFC
llvm-svn: 317784
2017-11-09 13:22:03 +00:00
Krasimir Georgiev 0fcb580bb1 [clang-format] Fix argument name comment, NFC
llvm-svn: 317783
2017-11-09 13:19:14 +00:00
Andrew V. Tischenko 3543f0a712 Add -print-schedule scheduling comments to inline asm.
Differential Revision: https://reviews.llvm.org/D39728

llvm-svn: 317782
2017-11-09 12:45:40 +00:00
Simon Atanasyan 509834d7d3 [MIPS] Fix calculation of the R_MICROMIPS_LO16 / HI16 relocations
llvm-svn: 317781
2017-11-09 12:10:14 +00:00
Haojian Wu 345099ca19 [clangd] Add rename support.
Summary:
Make clangd handle "textDocument/rename" request. The rename
functionality comes from the "local-rename" sub-tool of clang-refactor.

Currently clangd only supports local rename (only symbol occurrences in
the main file will be renamed).

Reviewers: sammccall, ilya-biryukov

Reviewed By: sammccall

Subscribers: cfe-commits, ioeric, arphaman, mgorny

Differential Revision: https://reviews.llvm.org/D39676

llvm-svn: 317780
2017-11-09 11:30:04 +00:00
Pavel Labath 578a425890 Simplify NativeProcessProtocol::GetArchitecture/GetByteOrder
Summary:
These functions used to return bool to signify whether they were able to
retrieve the data. This is redundant because the ArchSpec and ByteOrder
already have their own "invalid" states, *and* because both of the
current implementations (linux, netbsd) can always provide a valid
result.

This allows us to simplify bits of the code handling these values.

Reviewers: eugene, krytarowski

Subscribers: javed.absar, lldb-commits

Differential Revision: https://reviews.llvm.org/D39733

llvm-svn: 317779
2017-11-09 10:43:16 +00:00
Simon Atanasyan 3a7044ef78 [MIPS] Setup less-significant bit in a symbol value in microMIPS thunks
The less-significant bit signals about microMIPS code for jump/branch instructions.

llvm-svn: 317778
2017-11-09 10:42:22 +00:00
Sam McCall 60d74e4588 [Tooling] Use FixedCompilationDatabase when `compile_flags.txt` is found.
Summary:
This is an alternative to JSONCompilationDatabase for simple projects that
don't use a build system such as CMake.
(You can also drop one in ~, to make your tools use e.g. C++11 by default)

There's no facility for varying flags per-source-file or per-machine.
Possibly this could be accommodated backwards-compatibly using cpp, but even if
not the simplicity seems worthwhile for the cases that are addressed.

Tested with clangd, works great! (requires clangd restart)

Reviewers: klimek

Subscribers: ilya-biryukov, cfe-commits

Differential Revision: https://reviews.llvm.org/D39799

llvm-svn: 317777
2017-11-09 10:37:39 +00:00
John McCall 26d55e0346 Fix a bug with the use of __builtin_bzero in a conditional expression.
Patch by Bharathi Seshadri!

llvm-svn: 317776
2017-11-09 09:32:32 +00:00
Craig Topper 5bfa5ffe5e [X86] Give priority to EVEX FMA instructions over FMA4 instructions.
No existing processor has both so it doesn't really matter what we do here. But we were previously just relying on pattern order which gave FMA4 priority.

llvm-svn: 317775
2017-11-09 08:26:26 +00:00
Vitaly Buka 66f32fc431 [sanitizers] Rename GetStackTraceWithPcBpAndContext
Name does not need to enumerate arguments.

llvm-svn: 317774
2017-11-09 07:53:06 +00:00
Vitaly Buka 2b2d3aaa04 [msan] Add context argument into GetStackTrace
llvm-svn: 317773
2017-11-09 07:48:53 +00:00
Vitaly Buka cb4b2c0ffc [lsan] Add "static" to internal function
llvm-svn: 317772
2017-11-09 07:46:30 +00:00
Vitaly Buka bee1964d80 Fix "default label in switch which covers all enumeration values" warning
llvm-svn: 317771
2017-11-09 07:46:13 +00:00
Sanjoy Das e3992c6328 [SectionMemoryManager] Abstract out mmap, munmap, mprotect even more ; NFC
Summary:
This will let ORC JIT clients plug in custom logic for the mmap, munmap and
mprotect paths.

Reviewers: loladiro, dblaikie

Subscribers: mcrosier, llvm-commits

Differential Revision: https://reviews.llvm.org/D39300

llvm-svn: 317770
2017-11-09 06:31:33 +00:00
Craig Topper 7a6e294a6c [X86] Make X86ISD::FMADDS3 isel patterns commutable.
This was missed when FMADDS3 was split from X86ISD::FMADDS3_RND.

llvm-svn: 317769
2017-11-09 06:17:05 +00:00
Serguei Katkov 722339e405 [GVN PRE] Patch the source for Phi node in PRE
We must patch all existing incoming values of Phi node,
otherwise it is possible that we can see poison
where program does not expect to see it.

This is the similar what GVN does.

The added test test/Transforms/GVN/PRE/pre-jt-add.ll shows an
example of wrong optimization done by jump threading due to
GVN PRE did not patch existing incoming value.

Reviewers: mkazantsev, wmi, dberlin, davide
Reviewed By: dberlin
Subscribers: efriedma, llvm-commits
Differential Revision: https://reviews.llvm.org/D39637

llvm-svn: 317768
2017-11-09 06:02:18 +00:00
Kostya Serebryany 3ac31d4453 [libFuzzer] allow merge to resume after being preempted
llvm-svn: 317767
2017-11-09 05:49:28 +00:00
Craig Topper e5b84ec2a1 [X86] Rename the VEX scalar fma builtins to end with a '3' to match gcc
I think we need to use different builtins for the FMA4 instructions since those instructions zero the upper bits and FMA3 instructions pass the bits through.

So this moves the existing builtins to be the FMA3 versions. New versions will be added for FMA4.

llvm-svn: 317766
2017-11-09 04:10:46 +00:00
Craig Topper 258da8a249 [X86] Rename the VEX scalar fma builtins to end with a '3' to match gcc
I think we need to use different builtins for the FMA4 instructions since those instructions zero the upper bits and FMA3 instructions pass the bits through.

So this moves the existing builtins to be the FMA3 versions. New versions will be added for FMA4.

llvm-svn: 317765
2017-11-09 04:10:42 +00:00
Vedant Kumar a1abb655be [llvm-cov] Fix more -path-equivalence test bugs
llvm-svn: 317764
2017-11-09 02:50:24 +00:00
Vedant Kumar 7d642b767c [llvm-cov] Fix a -path-equivalence bug in a test
llvm-svn: 317763
2017-11-09 02:42:34 +00:00
Vedant Kumar 69597042ff [llvm-cov] Don't render empty region marker lines
This fixes an issue where llvm-cov prints an empty line, thinking it
needs to display region markers, when it actually doesn't.

llvm-svn: 317762
2017-11-09 02:33:44 +00:00
Vedant Kumar 43247f0542 [Coverage] Use the wrapped segment when a line has entry segments
We've worked around bugs in the frontend by ignoring the count from
wrapped segments when a line has at least one region entry segment.
Those frontend bugs are now fixed, so it's time to regenerate the
checked-in covmapping files and remove the workaround.

llvm-svn: 317761
2017-11-09 02:33:43 +00:00
Vedant Kumar f9a0d44eea [Coverage] Emit deferred regions in headers
There are some limitations with emitting regions in macro expansions
because we don't gather file IDs within the expansions. Fix the check
that prevents us from emitting deferred regions in expansions to make an
exception for headers, which is something we can handle.

rdar://35373009

llvm-svn: 317760
2017-11-09 02:33:40 +00:00
Vedant Kumar 8046d22a36 [Coverage] Complete top-level deferred regions before labels
The area immediately after a terminated region in the function top-level
should have the same count as the label it precedes.

This solves another problem with wrapped segments. Consider:

  1| a:
  2|   return 0;
  3| b:
  4|   return 1;

Without a gap area starting after the first return, the wrapped segment
from line 2 would make it look like line 3 is executed, when it's not.

rdar://35373009

llvm-svn: 317759
2017-11-09 02:33:39 +00:00
Vedant Kumar 2e8c875905 [Coverage] Emit a gap area after if conditions
The area immediately after the closing right-paren of an if condition
should have a count equal to the 'then' block's count. Use a gap region
to set this count, so that region highlighting for the 'then' block
remains precise.

This solves a problem we have with wrapped segments. Consider:

  1| if (false)
  2|   foo();

Without a gap area starting after the condition, the wrapped segment
from line 1 would make it look like line 2 is executed, when it's not.

rdar://35373009

llvm-svn: 317758
2017-11-09 02:33:38 +00:00
Peter Collingbourne c6721f580d ubsan: Allow programs to use setenv to configure ubsan_standalone.
Previously ubsan_standalone used the GetEnv function to read the
environment variables UBSAN_OPTIONS and UBSAN_SYMBOLIZER_PATH. The
problem with GetEnv is that it does not respect changes to the
environment variables made using the libc setenv function, which
prevents clients from setting environment variables to configure
ubsan before loading ubsan-instrumented libraries.

The reason why we have GetEnv is that some runtimes need to read
environment variables while they initialize using .preinit_array,
and getenv does not work while .preinit_array functions are being
called. However, it is unnecessary for ubsan_standalone to initialize
that early. So this change switches ubsan_standalone to using getenv
and removes the .preinit_array entry. The static version of the runtime
still ends up being initialized using a C++ constructor that exists
to support the shared runtime.

Differential Revision: https://reviews.llvm.org/D39827

llvm-svn: 317757
2017-11-09 02:22:07 +00:00
Kostya Serebryany e1d121d715 [libFuzzer] mechanically simplify a test, NFC
llvm-svn: 317756
2017-11-09 02:13:43 +00:00
Marek Olsak 58410f37ff AMDGPU: Merge BUFFER_STORE_DWORD_OFFEN/OFFSET into x2, x4
Summary:
Only 56 shaders (out of 48486) are affected.

Totals from affected shaders (changed stats only):
SGPRS: 2420 -> 2460 (1.65 %)
Spilled VGPRs: 94 -> 112 (19.15 %)
Scratch size: 524 -> 528 (0.76 %) dwords per thread
Code Size: 187400 -> 184992 (-1.28 %) bytes

One DiRT Showdown shader spills 6 more VGPRs.
One Grid Autosport shader spills 12 more VGPRs.

The other 54 shaders only have a decrease in code size.
(I'm ignoring the SGPR noise)

Reviewers: arsenm, nhaehnle

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

Differential Revision: https://reviews.llvm.org/D39012

llvm-svn: 317755
2017-11-09 01:52:55 +00:00
Marek Olsak 5cec64195c AMDGPU: Lower buffer store and atomic intrinsics manually
Summary:
Without this, SIMemoryLegalizer inserts s_waitcnt vmcnt(0) before every
buffer store and atomic instruction.

Reviewers: arsenm, nhaehnle

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

Differential Revision: https://reviews.llvm.org/D39060

llvm-svn: 317754
2017-11-09 01:52:48 +00:00
Marek Olsak 4c421a2db2 AMDGPU: Merge BUFFER_LOAD_DWORD_OFFSET into x2, x4
Summary: Only 3 (out of 48486) shaders are affected.

Reviewers: arsenm, nhaehnle

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

Differential Revision: https://reviews.llvm.org/D38951

llvm-svn: 317753
2017-11-09 01:52:36 +00:00
Marek Olsak 6a0548acaa AMDGPU: Merge BUFFER_LOAD_DWORD_OFFEN into x2, x4
Summary:
-9.9% code size decrease in affected shaders.

Totals (changed stats only):
SGPRS: 2151462 -> 2170646 (0.89 %)
VGPRS: 1634612 -> 1640288 (0.35 %)
Spilled SGPRs: 8942 -> 8940 (-0.02 %)
Code Size: 52940672 -> 51727288 (-2.29 %) bytes
Max Waves: 373066 -> 371718 (-0.36 %)

Totals from affected shaders:
SGPRS: 283520 -> 302704 (6.77 %)
VGPRS: 227632 -> 233308 (2.49 %)
Spilled SGPRs: 3966 -> 3964 (-0.05 %)
Code Size: 12203080 -> 10989696 (-9.94 %) bytes
Max Waves: 44070 -> 42722 (-3.06 %)

Reviewers: arsenm, nhaehnle

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

Differential Revision: https://reviews.llvm.org/D38950

llvm-svn: 317752
2017-11-09 01:52:30 +00:00
Marek Olsak b953cc36e2 AMDGPU: Merge S_BUFFER_LOAD_DWORD_IMM into x2, x4
Summary:
Only constant offsets (*_IMM opcodes) are merged.
It reuses code for LDS load/store merging.
It relies on the scheduler to group loads.

The results are mixed, I think they are mostly positive. Most shaders are
affected, so here are total stats only:

 SGPRS: 2072198 -> 2151462 (3.83 %)
 VGPRS: 1628024 -> 1634612 (0.40 %)
 Spilled SGPRs: 7883 -> 8942 (13.43 %)
 Spilled VGPRs: 97 -> 101 (4.12 %)
 Scratch size: 1488 -> 1492 (0.27 %) dwords per thread
 Code Size: 60222620 -> 52940672 (-12.09 %) bytes
 Max Waves: 374337 -> 373066 (-0.34 %)

There is 13.4% increase in SGPR spilling, DiRT Showdown spills a few more
VGPRs (now 37), but 12% decrease in code size.

These are the new stats for SGPR spilling. We already spill a lot SGPRs,
so it's uncertain whether more spilling will make any difference since
SGPRs are always spilled to VGPRs:

 SGPR SPILLING APPS   Shaders SpillSGPR AvgPerSh
 alien_isolation         2938       100      0.0
 batman_arkham_origins    589         6      0.0
 bioshock-infinite       1769         4      0.0
 borderlands2            3968        22      0.0
 counter_strike_glob..   1142        60      0.1
 deus_ex_mankind_div..   1410        79      0.1
 dirt-showdown            533         4      0.0
 dirt_rally               364      1163      3.2
 divinity                1052         2      0.0
 dota2                   1747         7      0.0
 f1-2015                  776      1515      2.0
 grid_autosport          1767      1505      0.9
 hitman                  1413       273      0.2
 left_4_dead_2           1762         4      0.0
 life_is_strange         1296        26      0.0
 mad_max                  358        96      0.3
 metro_2033_redux        2670        60      0.0
 payday2                 1362        22      0.0
 portal                   474         3      0.0
 saints_row_iv           1704         8      0.0
 serious_sam_3_bfe        392      1348      3.4
 shadow_of_mordor        1418        12      0.0
 shadow_warrior          3956       239      0.1
 talos_principle          324      1735      5.4
 thea                     172        17      0.1
 tomb_raider             1449       215      0.1
 total_war_warhammer      242        56      0.2
 ue4_effects_cave         295        55      0.2
 ue4_elemental            572        12      0.0
 unigine_tropics          210        56      0.3
 unigine_valley           278       152      0.5
 victor_vran             1262        84      0.1
 yofrankie                 82         2      0.0

Reviewers: arsenm, nhaehnle

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

Differential Revision: https://reviews.llvm.org/D38949

llvm-svn: 317751
2017-11-09 01:52:23 +00:00
Marek Olsak ffadcb744b AMDGPU: Fold immediate offset into BUFFER_LOAD_DWORD lowered from SMEM
Summary:
-5.3% code size in affected shaders.

Changed stats only:

48486 shaders in 30489 tests
Totals:
SGPRS: 2086406 -> 2072430 (-0.67 %)
VGPRS: 1626872 -> 1627960 (0.07 %)
Spilled SGPRs: 7865 -> 7912 (0.60 %)
Code Size: 60978060 -> 60188764 (-1.29 %) bytes
Max Waves: 374530 -> 374342 (-0.05 %)

Totals from affected shaders:
SGPRS: 299664 -> 285688 (-4.66 %)
VGPRS: 233844 -> 234932 (0.47 %)
Spilled SGPRs: 3959 -> 4006 (1.19 %)
Code Size: 14905272 -> 14115976 (-5.30 %) bytes
Max Waves: 46202 -> 46014 (-0.41 %)

Reviewers: arsenm, nhaehnle

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

Differential Revision: https://reviews.llvm.org/D38915

llvm-svn: 317750
2017-11-09 01:52:17 +00:00
Kostya Serebryany 8a94f220aa [libFuzzer] fix a test (and hopefully, the bot)
llvm-svn: 317749
2017-11-09 01:45:59 +00:00
Craig Topper 93e27d2ecc [X86] Make sure we don't read too many operands from X86ISD::FMADDS1/FMADDS3 nodes when doing FNEG combine.
r317453 added new ISD nodes without rounding modes that were added to an existing if/else chain. But all the previous nodes handled there included a rounding mode. The final code after this if/else chain expected an extra operand that isn't present for the new nodes.

llvm-svn: 317748
2017-11-09 01:06:47 +00:00