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Commit Graph

151565 Commits

Author SHA1 Message Date
Kostya Serebryany
b43c07ef34 [libFuzzer] refactoring in preparation for -reduce_inputs; NFC intended
llvm-svn: 307857
2017-07-12 22:20:04 +00:00
Daniel Neilson
84653da20b Add element atomic memset intrinsic
Summary: Continuing the work from https://reviews.llvm.org/D33240, this change introduces an element unordered-atomic memset intrinsic. This intrinsic is essentially memset with the implementation requirement that all stores used for the assignment are done with unordered-atomic stores of a given element size.

Reviewers: eli.friedman, reames, mkazantsev, skatkov

Reviewed By: reames

Subscribers: jfb, dschuff, sbc100, jgravelle-google, aheejin, efriedma, llvm-commits

Differential Revision: https://reviews.llvm.org/D34885

llvm-svn: 307854
2017-07-12 21:57:23 +00:00
Rui Ueyama
7d0fdbaded [Solaris] Detect Solaris LD, use detection results to pass Solaris-ld options
Solaris ld is not the only linker available on Solaris.
Introducing linker detection and using LLVM_LINKER_IS_SOLARISLD to
select Solaris-ld specific handling.

Patch by: Fedor Sergeev

Differential Revision: https://reviews.llvm.org/D35325

llvm-svn: 307852
2017-07-12 21:43:14 +00:00
Florian Hahn
447e1250ca [AArch64] Only run macro fusion for CPUs with any fusion support.
Reviewers: evandro, t.p.northover, javed.absar

Reviewed By: evandro

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

Differential Revision: https://reviews.llvm.org/D34959

llvm-svn: 307851
2017-07-12 21:41:28 +00:00
Rui Ueyama
f809fa7f30 Use --color-diagnostics instead of -color-diagnostics.
Solaris ld interprets -color-diagnostics as a -c option, so it is
better to use --color-diagnostics instead. lld accepts both.

Differential Revision: https://reviews.llvm.org/D35327

llvm-svn: 307850
2017-07-12 21:37:02 +00:00
Frederich Munch
4d0cd2ca8d Allow clients to specify search order of DynamicLibraries.
Summary: Different JITs and other clients of LLVM may have different needs in how symbol resolution should occur.

Reviewers: v.g.vassilev, lhames, karies

Reviewed By: v.g.vassilev

Subscribers: pcanal, llvm-commits

Differential Revision: https://reviews.llvm.org/D33529

llvm-svn: 307849
2017-07-12 21:22:45 +00:00
Stanislav Mekhanoshin
efe34aaf12 [AMDGPU] fcanonicalize elimination optimization
We are using multiplication by 1.0 to flush denormals and quiet sNaNs.
That is possible to omit this multiplication if source of the
fcanonicalize instruction is known to be flushed/quieted, i.e.
if it comes from another instruction known to do the normalization
and we are using IEEE mode to quiet sNaNs.

Differential Revision: https://reviews.llvm.org/D35218

llvm-svn: 307848
2017-07-12 21:20:28 +00:00
Rafael Espindola
35296157d7 Don't expose a map in the DWARFContext interface.
Doing so is leaking an implementation detail.

I have an implementation that uses the lld infrastructure and doesn't
use a map or object::SectionRef.

llvm-svn: 307846
2017-07-12 21:08:24 +00:00
Anna Thomas
6f931c9a15 [LoopUnrollRuntime] NFC: Refactored safety checks of unrolling multi-exit loop
Refactored the code and separated out a function
`canSafelyUnrollMultiExitLoop` to reduce redundant checks and make it
easier to add profitability heuristics later.
Added tests to runtime unrolling to make sure that unrolling for
multi-exit loops is not done unless the option
-unroll-runtime-multi-exit is true.

llvm-svn: 307843
2017-07-12 20:55:43 +00:00
Florian Hahn
52ecc1000b [AArch64] Add AArch64Subtarget::isFusion function.
Summary:
isFusion returns true if the subtarget supports any kind of instruction
fusion, similar to ARMSubtarget::isFusion. This was suggested in D34142.

This changes the current behavior slightly, because the macro fusion mutation 
is now added to the PostRA MachineScheduler in case the subtarget supports
any kind of fusion. I think that makes sense because if the PostRA 
MachineScheduler is run, there is potential that instructions scheduled back to 
back are re-scheduled.

Reviewers: evandro, t.p.northover, joelkevinjones, joel_k_jones, steleman

Reviewed By: joelkevinjones

Subscribers: joel_k_jones, aemerson, rengolin, javed.absar, kristof.beyls, llvm-commits

Differential Revision: https://reviews.llvm.org/D34958

llvm-svn: 307842
2017-07-12 20:53:22 +00:00
Heejin Ahn
9dd9115a20 [WebAssembly] Mark element atomic memcpy/memmove intrinsics as unsupported
Summary:
Element atomic intrinsicAtomic instructions are not yet supported in WebAssembly, so we mark them as     
unsupported for the moment.

Reviewers: sunfish, dschuff, sbc100

Reviewed By: dschuff, sbc100

Subscribers: jfb, sbc100, jgravelle-google

Differential Revision: https://reviews.llvm.org/D35322

llvm-svn: 307841
2017-07-12 20:50:04 +00:00
Sam Clegg
470d37c78e Remove unneeded use of #undef DEBUG_TYPE. NFC
Where is is needed (at the end of headers that define it), be
consistent about its use.

Also fix a few header guards that I found in the process.

Differential Revision: https://reviews.llvm.org/D34916

llvm-svn: 307840
2017-07-12 20:49:21 +00:00
Michael Kuperstein
2652e56b42 [LV] Don't allow outside uses of IVs if the SCEV is predicated on loop conditions.
This fixes PR33706.
Differential Revision: https://reviews.llvm.org/D35227

llvm-svn: 307837
2017-07-12 19:53:55 +00:00
Simon Dardis
3bf57390a3 [mips][mt][6/7] Add support for mftr, mttr instructions.
Unlike many other instructions, these instructions have aliases which
take coprocessor registers, gpr register, accumulator (and dsp accumulator)
registers, floating point registers, floating point control registers and
coprocessor 2 data and control operands.

For the moment, these aliases are treated as pseudo instructions which are
expanded into the underlying instruction. As a result, disassembling these
instructions shows the underlying instruction and not the alias.

Reviewers: slthakur, atanasyan

Differential Revision: https://reviews.llvm.org/D35253

llvm-svn: 307836
2017-07-12 19:47:45 +00:00
Reid Kleckner
d1ccae8f6d Fix non-Windows build after PDB native builtin type change
Some C++14 features slipped in along with an extra member qualification.

llvm-svn: 307835
2017-07-12 19:46:35 +00:00
Adrian McCarthy
22b5fc8160 [PDB] Enable NativeSession to create symbols for built-in types on demand
Summary:
There is a reserved range of type indexes for built-in types (like integers).
This will create a symbol for a built-in type if the caller askes for one by
type index.  This is also plumbing for being able to recall symbols by type
index in general, but user-defined types will come in subsequent patches.

Reviewers: rnk, zturner

Subscribers: mgorny, hiraditya, llvm-commits

Differential Revision: https://reviews.llvm.org/D35163

llvm-svn: 307834
2017-07-12 19:38:11 +00:00
Daniel Neilson
d8f7cc9388 Fix to web assembly lib call list
Summary:
 Revision 307796 caused an internal build break in WebAssembly bots in the form of a
crash.  ex:
Here's the crash dump from one of the failing tests:

/usr/local/google/home/blaikie/dev/llvm/build/default/./bin/llc < /usr/local/google/home/blaikie/dev/llvm/src/test/CodeGen/WebAssembly/global.ll -asm-verbose=false -disable-wasm-fallthrough-return-opt -disable-wasm-explicit-locals | /usr/local/google/home/blaikie/dev/llvm/build/default/./bin/FileCheck /usr/local/google/home/blaikie/dev/llvm/src/test/CodeGen/WebAssembly/global.ll
--
Exit Code: 2

Command Output (stderr):
--
Stack dump:
0.      Program arguments: build/default/./bin/llc -asm-verbose=false -disable-wasm-fallthrough-return-opt -disable-wasm-explicit-locals
1.      Running pass 'Function Pass Manager' on module '<stdin>'.
2.      Running pass 'WebAssembly Assembly Printer' on function '@call_memcpy'
FileCheck error: '-' is empty.
FileCheck command line:  build/default/./bin/FileCheck src/test/CodeGen/WebAssembly/global.ll

The problem is in lib/Target/WebAssembly/WebAssemblyRuntimeLibcallSignatures.cpp. There’s an array declared:
545 static const char *
Fix to web assembly lib call list

Summary:
 Revision 307796 caused an internal build break in WebAssembly bots in the form of a
crash.  ex:
Here's the crash dump from one of the failing tests:

/usr/local/google/home/blaikie/dev/llvm/build/default/./bin/llc < /usr/local/google/home/blaikie/dev/llvm/src/test/CodeGen/WebAssembly/global.ll -asm-verbose=false -disable-wasm-fallthrough-return-opt -disable-wasm-explicit-locals | /usr/local/google/home/blaikie/dev/llvm/build/default/./bin/FileCheck /usr/local/google/home/blaikie/dev/llvm/src/test/CodeGen/WebAssembly/global.ll
--
Exit Code: 2

Command Output (stderr):
--
Stack dump:
0.      Program arguments: build/default/./bin/llc -asm-verbose=false -disable-wasm-fallthrough-return-opt -disable-wasm-explicit-locals
1.      Running pass 'Function Pass Manager' on module '<stdin>'.
2.      Running pass 'WebAssembly Assembly Printer' on function '@call_memcpy'
FileCheck error: '-' is empty.
FileCheck command line:  build/default/./bin/FileCheck src/test/CodeGen/WebAssembly/global.ll

The problem is in lib/Target/WebAssembly/WebAssemblyRuntimeLibcallSignatures.cpp. There’s an array declared:
static const char *
RuntimeLibcallNames[RTLIB::UNKNOWN_LIBCALL] = {

 That is defining a runtime lib call name for each entry in the enum RTLIB:Libcall from include/llvm/CodeGen/RuntimeLibcalls.h.

Revision 307796 added entries to the enum, but didn’t add entries to the RuntimeLibcallNames array, which caused a crash when attempting
to access past the end of the array.

This patch fixes the issue by adding the element atomic memmove to the WebAssembly arrays.

Reviewed by: reames

llvm-svn: 307831
2017-07-12 19:24:07 +00:00
Jakub Kuderski
892202cb99 [LoopRotate] Fix DomTree update logic for unreachable nodes. Fix PR33701.
Summary:
LoopRotate manually updates the DoomTree by iterating over all predecessors of a basic block and computing the Nearest Common Dominator.

When a predecessor happens to be unreachable, `DT.findNearestCommonDominator` returns nullptr.

This patch teaches LoopRotate to handle this case and fixes [[ https://bugs.llvm.org/show_bug.cgi?id=33701 | PR33701 ]].

In the future, LoopRotate should be taught to use the new incremental API for updating the DomTree.

Reviewers: dberlin, davide, uabelho, grosser

Subscribers: efriedma, mzolotukhin

Differential Revision: https://reviews.llvm.org/D35074

llvm-svn: 307828
2017-07-12 18:42:16 +00:00
Reid Kleckner
d3193ffb6d Use std::mutex to avoid memory allocation after OOM
ManagedStatic<sys::Mutex> would lazilly allocate a sys::Mutex to lock
when reporting an OOM, which is a bad idea.

The three STL implementations that I know of use pthread_mutex_lock and
EnterCriticalSection to implement std::mutex. I'm pretty sure that
neither of those allocate heap memory.

It seems that we unconditionally use std::mutex without testing
LLVM_ENABLE_THREADS elsewhere in the codebase, so this should be
portable.

llvm-svn: 307827
2017-07-12 18:23:06 +00:00
George Karpenkov
22d0db8cc6 [libFuzzer] Add a dependency on symbolizer from libFuzzer tests
Some libFuzzer tests on Linux would fail with bizarre error messages
unless llvm-symbolizer binary is present.

Differential Revision: https://reviews.llvm.org/D35313

llvm-svn: 307826
2017-07-12 18:17:34 +00:00
George Karpenkov
7aa51ef76c [libFuzzer] NFC Declare LIBFUZZER_FLAGS_BASE outside of an if-block
The current code relies on the assumption that tests are included only
if LLVM_USE_SANITIZE_COVERAGE is enabled.
This commit makes it easier to relax the assumption in the future, as
the variable LIBFUZZER_FLAGS_BASE is used further in libFuzzer tests.

Differential Revision: https://reviews.llvm.org/D35314

llvm-svn: 307825
2017-07-12 18:16:09 +00:00
George Karpenkov
cea519e029 [libFuzzer] Do not use LLVM ostream in tests
Differential Revision: https://reviews.llvm.org/D35312

llvm-svn: 307824
2017-07-12 18:14:19 +00:00
Sanjay Patel
d424391403 [x86] improve SBB optimizations for SETB/SETA with subtract
This is another step towards removing a combine that turns sext
into select of constants and preparing the backend for an IR
future where select is the canonical form.

Earlier commits in this area:
https://reviews.llvm.org/rL306040
https://reviews.llvm.org/rL306072
https://reviews.llvm.org/rL307404 (https://reviews.llvm.org/D34652)
https://reviews.llvm.org/rL307471

llvm-svn: 307821
2017-07-12 17:56:46 +00:00
Sanjay Patel
fcee2d2609 [x86] add tests for improving sbb transforms; NFC
We're subtracting X from X the hard way...

llvm-svn: 307819
2017-07-12 17:44:50 +00:00
Justin Bogner
515fb71ee7 GlobalISel: Handle selection of G_IMPLICIT_DEF in AArch64
A generic variant of IMPLICIT_DEF was added in r306875, but this
survives to selection and hits a `Cannot Select`. Add handling that
converts the note to a regular IMPLICIT_DEF.

llvm-svn: 307817
2017-07-12 17:32:32 +00:00
George Burgess IV
73426bec37 Add a test for r307754
As promised in D35003.

Uses -codegenprepare instead of -instcombine since we hit the same
buggy path anyway, and CGP lets us keep this test really simple
(instcombine likes turning the alloca T, N into alloca [N x T], which
hides the bug this is testing for).

llvm-svn: 307811
2017-07-12 16:30:37 +00:00
Simon Dardis
579b27fc8f [mips][mt][5/7] Add support for fork and yield instructions.
Reviewers: slthakur, atanasyan

Differential Revision: https://reviews.llvm.org/D35252

llvm-svn: 307808
2017-07-12 16:23:57 +00:00
Rafael Espindola
364b080e0a Add back a CHECK line.
I accidentally removed it in r307730.

Thanks to Martin Storsjö for noticing!

llvm-svn: 307801
2017-07-12 16:14:00 +00:00
Evandro Menezes
296d928945 [CodeGen] Add dependency printer
Add SDep printer to make debugging sessions more productive.

Differential revision: https://reviews.llvm.org/D35144

llvm-svn: 307799
2017-07-12 15:30:59 +00:00
Davide Italiano
228039ae12 [X86/FastIsel] Fall-back to SelectionDAG when lowering soft-floats.
FastIsel can't handle them, so we would end up crashing during
register class selection.
Fixes PR26522.

Differential Revision:  https://reviews.llvm.org/D35272

llvm-svn: 307797
2017-07-12 15:26:06 +00:00
Daniel Neilson
5294f8b585 Add element atomic memmove intrinsic
Summary: Continuing the work from https://reviews.llvm.org/D33240, this change introduces an element unordered-atomic memmove intrinsic. This intrinsic is essentially memmove with the implementation requirement that all loads/stores used for the copy are done with unordered-atomic loads/stores of a given element size.

Reviewers: eli.friedman, reames, mkazantsev, skatkov

Reviewed By: reames

Subscribers: llvm-commits

Differential Revision: https://reviews.llvm.org/D34884

llvm-svn: 307796
2017-07-12 15:25:26 +00:00
Simon Dardis
728cbf9a73 [mips][mt][4/7] Add IAS support for dvpe, evpe instructions.
Reviewers: slthakur, atanasyan

Differential Revision: https://reviews.llvm.org/D35251

llvm-svn: 307793
2017-07-12 14:48:27 +00:00
Simon Pilgrim
a51cfc9917 [X86][SSE] Fix file check prefix warning breaking buildbots
llvm-svn: 307790
2017-07-12 13:41:13 +00:00
Kamil Rytarowski
a973e7a418 Make shell redirection construct portable
Summary:
NetBSD shell sh(1) does not support ">& /dev/null" construct.
This is bashism. The portable and POSIX solution is to use:
"> /dev/null 2>&1".

This change fixes 22 Unexpected Failures on NetBSD/amd64
for the "check-llvm" target.

Sponsored by <The NetBSD Foundation>

Reviewers: joerg, dim, rnk

Reviewed By: joerg, rnk

Subscribers: rnk, davide, llvm-commits

Differential Revision: https://reviews.llvm.org/D35277

llvm-svn: 307789
2017-07-12 13:24:46 +00:00
John Brawn
b8e8932e7b [ARM] Adjust ifcvt heuristic for the diamond ifcvt case
When we have a diamond ifcvt the fallthough block will have a branch at the end
of it that disappears when predicated, so discount it from the predication cost.

Differential Revision: https://reviews.llvm.org/D34952

llvm-svn: 307788
2017-07-12 13:23:10 +00:00
Simon Pilgrim
c0bcedd785 [X86][SSE] Add 512-bit (iX bitcast(vXi1)) test cases
Improves test coverage for pre-AVX512 targets as well

llvm-svn: 307783
2017-07-12 12:44:10 +00:00
Simon Dardis
ea659cc75d [mips][mt] Add missing files from last commit
llvm-svn: 307779
2017-07-12 12:33:40 +00:00
Hiroshi Inoue
ea517d8a54 fix typo in document; NFC
llvm-svn: 307775
2017-07-12 12:16:22 +00:00
Simon Dardis
d941d76b3d [mips][mt][3/7] Add IAS support for emt, dmt instructions.
Reviewers: slthakur, atanasyan

Differential Revision: https://reviews.llvm.org/D35250

llvm-svn: 307774
2017-07-12 11:57:44 +00:00
Florian Hahn
f4278d3016 [Linker] Add directives to support mixing ARM/Thumb module-level inline asm.
Summary:
By prepending `.text .thumb .balign 2` to the module-level inline
assembly from a Thumb module, the assembler will generate the assembly
from that module as Thumb, even if the destination module uses an ARM
triple. Similar directives are used for module-level inline assembly in
ARM modules.

The alignment and instruction set are reset based on the target triple
before emitting the first function label.

Reviewers: olista01, tejohnson, echristo, t.p.northover, rafael

Reviewed By: echristo

Subscribers: aemerson, javed.absar, eraman, kristof.beyls, llvm-commits

Differential Revision: https://reviews.llvm.org/D34622

llvm-svn: 307772
2017-07-12 11:52:28 +00:00
Diana Picus
f5b245992e [ARM] GlobalISel: Simplify inst selector code. NFC
Refactor CmpHelper into something simpler. It was overkill to use
templates for this - instead, use a simple CmpConstants structure to
hold the opcodes and other constants that are different when selecting
int / float / double comparisons. Also, extract some of the helpers that
were in CmpHelper into ARMInstructionSelector and make use of some of
them when selecting other things than just compares.

llvm-svn: 307766
2017-07-12 10:31:16 +00:00
Chandler Carruth
4a89b23644 [PM] Fix a silly bug in my recent update to the CG update logic.
I used the wrong variable to update. This was even covered by a unittest
I wrote, and the comments for the unittest were correct (if confusing)
but the test itself just matched the buggy behavior. =[

llvm-svn: 307764
2017-07-12 09:08:11 +00:00
Diana Picus
b6b2ab061b [ARM] GlobalISel: Select s64 G_FCMP
Very similar to how we select s32 G_FCMP, the only thing that is
different is the exact opcodes that we use.

llvm-svn: 307763
2017-07-12 09:01:54 +00:00
Serge Guelton
d1db3aa3f1 Have Module::createRNG return a unique_ptr
Instead of a raw pointer, this makes memory management safer.

llvm-svn: 307762
2017-07-12 08:03:44 +00:00
Michael Zuckerman
182ebe0df7 [X86][LLVM]Expanding Supports lowerInterleavedStore() in X86InterleavedAccess.
Adding base test for AVX512 

llvm-svn: 307761
2017-07-12 08:01:44 +00:00
Craig Topper
eb3d71e2a6 [X86] Synchronize the ProcessorFeatures enum used by getHostCPUName with the enum in libgcc and soon compiler-rt.
This adds all the feature bits libgcc has. They will soon be added to compiler-rt as well. This adds a second 32 bit feature variable to hold the bits that are needed by getHostCPUName that are not in libgcc. libgcc had already used 31 of the 32 bits in the existing variable and we needed 3 bits so at minimum 2 bits would spill over. I chose to move all 3.

llvm-svn: 307758
2017-07-12 06:49:58 +00:00
Craig Topper
03fa0eef6a [X86] Sync ProcessorTypes and ProcessorSubtypes enums used by getHostCPUName with the version proposed to for compiler-rt's cpu_model.c
This keeps the starting entries in the enums in sync with what's in gcc and in review D35214 for compiler-rt.

llvm-svn: 307757
2017-07-12 06:49:57 +00:00
Craig Topper
0ff87c790f [X86] Cleanup the switches in getHostCPUName to remove impossible combinations.
llvm-svn: 307756
2017-07-12 06:49:56 +00:00
Craig Topper
529ffe48c2 [X86] Remove 'barcelona' string from getHostCPUName. Use 'amdfam10' instead. The x86 backend doesn't distinguish.
llvm-svn: 307755
2017-07-12 06:49:55 +00:00
Mikael Holmen
0005d191db [MemoryBuiltins] Allow truncation in visitAllocaInst()
Summary:
Solves PR33689.

If the pointer size is less than the size of the type used for the array
size in an alloca (the <ty> type below) then we could trigger the assert in
the PR. In that example we have pointer size i16 and <ty> is i32.

<result> = alloca [inalloca] <type> [, <ty> <NumElements>] [, align <alignment>]

Handle the situation by allowing truncation as well as zero extension in
ObjectSizeOffsetVisitor::visitAllocaInst().

Also, we now detect overflow in visitAllocaInst(), similar to how it was
already done in visitCallSite().

Reviewers: craig.topper, rnk, george.burgess.iv

Reviewed By: george.burgess.iv

Subscribers: davide, llvm-commits

Differential Revision: https://reviews.llvm.org/D35003

llvm-svn: 307754
2017-07-12 06:19:10 +00:00