maxjhandsome
/
llvm-project
forked from OSchip/llvm-project
1
0
Fork 0
Code Issues Pull Requests Packages Releases Wiki Activity
255,009 Commits 23 Branches 0 Tags 2.2 GiB
Commit Graph

255009 Commits

Author SHA1 Message Date
Matt Arsenault 900b21c350 Fix typos 
llvm-svn: 295246
 2017-02-15 22:19:06 +00:00
Rafael Espindola 46f68f50f0 Fix the static build. 
llvm-svn: 295245
 2017-02-15 22:19:04 +00:00
Matt Arsenault a78ca62c64 AMDGPU: Consolidate sendmsg/sendmsghalt handling and tests 
llvm-svn: 295244
 2017-02-15 22:17:09 +00:00
Eugene Zelenko 454d0cea6a [Support] Fix some Clang-tidy modernize and Include What You Use warnings; other minor fixes (NFC). 
llvm-svn: 295243
 2017-02-15 22:17:02 +00:00
Matt Arsenault 5de8dc9cf5 DAG: Do not scalarize fsub if fneg is legal 
Tests will be included with future commit.

llvm-svn: 295242
 2017-02-15 22:02:42 +00:00
Peter Collingbourne 50cbd7cc90 Re-apply r295110 and r295144 with a fix for the ASan issue. 
llvm-svn: 295241
 2017-02-15 21:56:51 +00:00
Ed Schouten 3bf713043a Make --export-dynamic work on non-PIC/PIE targets. 
For CloudABI I'm only interested in generating non-PIC/PIE executables
on armv6 and i686, as PIE introduces larger overhead than on aarch64 and
x86_64. Still, I want to be able to instruct the linker to generate a
dynamic symbol table if requested. One example use for this is that
dynamic symbol tables can be used by programs to print nicely formatted
stacktraces, including symbol names.

Right now there seems to be some logic in LLD that it only wants to emit
dynamic symbol tables when either linking against libraries or when
building PIC. Let's extend this to also take --export-dynamic into
account.

Reviewed by:	ruiu
Differential Revision:	https://reviews.llvm.org/D29982

llvm-svn: 295240
 2017-02-15 21:51:25 +00:00
Matt Arsenault d122abead4 AMDGPU: Replace assert with report_fatal_error 
Also use a more refined condition.

llvm-svn: 295239
 2017-02-15 21:50:34 +00:00
Keno Fischer 5e1e59180e [GlobalObject] Fix setSection("") 
Summary:
In rL291613, the section name was interned in LLVMContext. However,
this broke the ability to remove the section from a GlobalObject,
because it tried to intern empty strings, which is not allowed.
Fix that and add an appropriate regression test.

Reviewed By: rnk
Differential Revision: https://reviews.llvm.org/D29795

llvm-svn: 295238
 2017-02-15 21:42:42 +00:00
Sanjay Patel 845ea963aa [InstCombine] improve formatting; NFC 
llvm-svn: 295237
 2017-02-15 21:31:34 +00:00
Peter Collingbourne 9421c2dc54 AssumptionCache: Disable the verifier by default, move it behind a hidden cl::opt and verify from releaseMemory(). 
This is a short term solution to the problem that many passes currently fail
to update the assumption cache. In the long term the verifier should not
be controllable with a flag. We should either fix all passes to correctly
update the assumption cache and enable the verifier unconditionally or
somehow arrange for the assumption list to be updated automatically by passes.

Differential Revision: https://reviews.llvm.org/D30003

llvm-svn: 295236
 2017-02-15 21:10:09 +00:00
Simon Pilgrim 5b4c30fb32 [X86][SSE] Don't call EltsFromConsecutiveLoads if any element is missing. 
Minor performance speedup - if any call to getShuffleScalarElt fails to get a result, don't both calling for the remaining elements as EltsFromConsecutiveLoads will fail anyhow.

llvm-svn: 295235
 2017-02-15 21:09:00 +00:00
Etienne Bergeron b69639e217 [compiler-rt][asan|win] Fix ASAN exception handler missing import 
Summary:
This patch is adding a missing ASAN API redirection from an instrumented DLL.
The bug was introduced here:
  https://reviews.llvm.org/D29463

This is causing this chromium bug:
  https://bugs.chromium.org/p/chromium/issues/detail?id=692580

Reviewers: rnk

Reviewed By: rnk

Subscribers: kubamracek, dberris, llvm-commits, chrisha, thakis

Differential Revision: https://reviews.llvm.org/D30001

llvm-svn: 295232
 2017-02-15 20:48:04 +00:00
George Rokos 15a6e7daab [OpenMP] libomptarget: Protect parent struct from being deallocated 
Fixed bug due to which a parent struct was deallocated when one of the struct's pointers was being unmapped.

Differential Revision: https://reviews.llvm.org/D29914

llvm-svn: 295231
 2017-02-15 20:45:37 +00:00
Arnold Schwaighofer 8d61e0030a AddressSanitizer: don't track swifterror memory addresses 
They are register promoted by ISel and so it makes no sense to treat them as
memory.

Inserting calls to the thread sanitizer would also generate invalid IR.

You would hit:

"swifterror value can only be loaded and stored from, or as a swifterror
argument!"

llvm-svn: 295230
 2017-02-15 20:43:43 +00:00
Ahmed Bougacha f8acf568f1 [AArch64] Make am_ldrlit an iPTR - not OtherVT - operand. NFC-ish. 
am_ldrlit diverged from am_brcond in r207105, but kept the OtherVT
operand type.  It made sense for branch targets, as those are
represented as MVT::Other in SDAG.  But loads operate on pointers.

This shouldn't have an observable effect on any in-tree code, but helps
make the patterns consistent for external users.

llvm-svn: 295229
 2017-02-15 20:38:31 +00:00
Ahmed Bougacha 360260066e [OptDiag] Pass const Values/Types to Argument. NFC. 
llvm-svn: 295228
 2017-02-15 20:38:28 +00:00
Ahmed Bougacha f9e5a1dd88 [IR] Accept 'const Type &' in the Type operator<<. NFC. 
Type::print is const; there's no reason for the operator not to be.

llvm-svn: 295227
 2017-02-15 20:38:22 +00:00
Tobias Edler von Koch f454b9eadf [LTO] Add ability to emit assembly to new LTO API 
Summary:
Add a field to LTO::Config, CGFileType, to select the file type to emit (object
or assembly). This is useful for testing and to implement -save-temps.

Reviewers: tejohnson, mehdi_amini, pcc

Reviewed By: mehdi_amini

Subscribers: davide, llvm-commits

Differential Revision: https://reviews.llvm.org/D29475

llvm-svn: 295226
 2017-02-15 20:36:36 +00:00
Rui Ueyama 731a66ae98 Apply different tokenization rules to linker script expressions. 
The linker script lexer is context-sensitive. In the regular context,
arithmetic operator characters are regular characters, but in the
expression context, they are independent tokens. This afects how the
lexer tokenizes "3*4", for example. (This kind of expression is real;
the Linux kernel uses it.)

This patch defines function `maybeSplitExpr`. This function splits the
current token into multiple expression tokens if the lexer is in the
expression context.

Differential Revision: https://reviews.llvm.org/D29963

llvm-svn: 295225
 2017-02-15 19:58:17 +00:00
Richard Smith 90e043dae0 PR24440: Do not silently discard a fold-expression appearing as the operand of a cast-expression. 
llvm-svn: 295224
 2017-02-15 19:57:10 +00:00
Kyle Butt 7fbec9bdf1 Codegen: Make chains from trellis-shaped CFGs 
Lay out trellis-shaped CFGs optimally.
A trellis of the shape below:

  A     B
  |\   /|
  | \ / |
  |  X  |
  | / \ |
  |/   \|
  C     D

would be laid out A; B->C ; D by the current layout algorithm. Now we identify
trellises and lay them out either A->C; B->D or A->D; B->C. This scales with an
increasing number of predecessors. A trellis is a a group of 2 or more
predecessor blocks that all have the same successors.

because of this we can tail duplicate to extend existing trellises.

As an example consider the following CFG:

    B   D   F   H
   / \ / \ / \ / \
  A---C---E---G---Ret

Where A,C,E,G are all small (Currently 2 instructions).

The CFG preserving layout is then A,B,C,D,E,F,G,H,Ret.

The current code will copy C into B, E into D and G into F and yield the layout
A,C,B(C),E,D(E),F(G),G,H,ret

define void @straight_test(i32 %tag) {
entry:
  br label %test1
test1: ; A
  %tagbit1 = and i32 %tag, 1
  %tagbit1eq0 = icmp eq i32 %tagbit1, 0
  br i1 %tagbit1eq0, label %test2, label %optional1
optional1: ; B
  call void @a()
  br label %test2
test2: ; C
  %tagbit2 = and i32 %tag, 2
  %tagbit2eq0 = icmp eq i32 %tagbit2, 0
  br i1 %tagbit2eq0, label %test3, label %optional2
optional2: ; D
  call void @b()
  br label %test3
test3: ; E
  %tagbit3 = and i32 %tag, 4
  %tagbit3eq0 = icmp eq i32 %tagbit3, 0
  br i1 %tagbit3eq0, label %test4, label %optional3
optional3: ; F
  call void @c()
  br label %test4
test4: ; G
  %tagbit4 = and i32 %tag, 8
  %tagbit4eq0 = icmp eq i32 %tagbit4, 0
  br i1 %tagbit4eq0, label %exit, label %optional4
optional4: ; H
  call void @d()
  br label %exit
exit:
  ret void
}

here is the layout after D27742:
straight_test:                          # @straight_test
; ... Prologue elided
; BB#0:                                 # %entry ; A (merged with test1)
; ... More prologue elided
	mr 30, 3
	andi. 3, 30, 1
	bc 12, 1, .LBB0_2
; BB#1:                                 # %test2 ; C
	rlwinm. 3, 30, 0, 30, 30
	beq	 0, .LBB0_3
	b .LBB0_4
.LBB0_2:                                # %optional1 ; B (copy of C)
	bl a
	nop
	rlwinm. 3, 30, 0, 30, 30
	bne	 0, .LBB0_4
.LBB0_3:                                # %test3 ; E
	rlwinm. 3, 30, 0, 29, 29
	beq	 0, .LBB0_5
	b .LBB0_6
.LBB0_4:                                # %optional2 ; D (copy of E)
	bl b
	nop
	rlwinm. 3, 30, 0, 29, 29
	bne	 0, .LBB0_6
.LBB0_5:                                # %test4 ; G
	rlwinm. 3, 30, 0, 28, 28
	beq	 0, .LBB0_8
	b .LBB0_7
.LBB0_6:                                # %optional3 ; F (copy of G)
	bl c
	nop
	rlwinm. 3, 30, 0, 28, 28
	beq	 0, .LBB0_8
.LBB0_7:                                # %optional4 ; H
	bl d
	nop
.LBB0_8:                                # %exit ; Ret
	ld 30, 96(1)                    # 8-byte Folded Reload
	addi 1, 1, 112
	ld 0, 16(1)
	mtlr 0
	blr

The tail-duplication has produced some benefit, but it has also produced a
trellis which is not laid out optimally. With this patch, we improve the layouts
of such trellises, and decrease the cost calculation for tail-duplication
accordingly.

This patch produces the layout A,C,E,G,B,D,F,H,Ret. This layout does have
back edges, which is a negative, but it has a bigger compensating
positive, which is that it handles the case where there are long strings
of skipped blocks much better than the original layout. Both layouts
handle runs of executed blocks equally well. Branch prediction also
improves if there is any correlation between subsequent optional blocks.

Here is the resulting concrete layout:

straight_test:                          # @straight_test
; BB#0:                                 # %entry ; A (merged with test1)
	mr 30, 3
	andi. 3, 30, 1
	bc 12, 1, .LBB0_4
; BB#1:                                 # %test2 ; C
	rlwinm. 3, 30, 0, 30, 30
	bne	 0, .LBB0_5
.LBB0_2:                                # %test3 ; E
	rlwinm. 3, 30, 0, 29, 29
	bne	 0, .LBB0_6
.LBB0_3:                                # %test4 ; G
	rlwinm. 3, 30, 0, 28, 28
	bne	 0, .LBB0_7
	b .LBB0_8
.LBB0_4:                                # %optional1 ; B (Copy of C)
	bl a
	nop
	rlwinm. 3, 30, 0, 30, 30
	beq	 0, .LBB0_2
.LBB0_5:                                # %optional2 ; D (Copy of E)
	bl b
	nop
	rlwinm. 3, 30, 0, 29, 29
	beq	 0, .LBB0_3
.LBB0_6:                                # %optional3 ; F (Copy of G)
	bl c
	nop
	rlwinm. 3, 30, 0, 28, 28
	beq	 0, .LBB0_8
.LBB0_7:                                # %optional4 ; H
	bl d
	nop
.LBB0_8:                                # %exit

Differential Revision: https://reviews.llvm.org/D28522

llvm-svn: 295223
 2017-02-15 19:49:14 +00:00
Rui Ueyama a4601b5d7a Simplify operator tests. 
llvm-svn: 295222
 2017-02-15 19:36:01 +00:00
Rui Ueyama fd5edff8d6 Rename a test as they are tests for operators. 
llvm-svn: 295221
 2017-02-15 19:35:41 +00:00
Xinliang David Li 538d666814 include function name in dot filename 
Differential Revision: http://reviews.llvm.org/D29975

llvm-svn: 295220
 2017-02-15 19:21:04 +00:00
Arnold Schwaighofer 8eb1a48540 ThreadSanitizer: don't track swifterror memory addresses 
They are register promoted by ISel and so it makes no sense to treat them as
memory.

Inserting calls to the thread sanitizer would also generate invalid IR.

You would hit:

"swifterror value can only be loaded and stored from, or as a swifterror
argument!"

llvm-svn: 295215
 2017-02-15 18:57:06 +00:00
Michael Kuperstein ba80db39d7 [DAG] Don't try to create an INSERT_SUBVECTOR with an illegal source 
We currently can't legalize those, but we should really not be creating
them in the first place, since legalization would probably look similar to the
way we legalize CONCAT_VECTORS - basically replace the INSERT with a BUILD.

This fixes PR311956.

Differential Revision: https://reviews.llvm.org/D29961

llvm-svn: 295213
 2017-02-15 18:37:26 +00:00
Greg Clayton 4197b7f4ae Fix Xcode project. 
llvm-svn: 295212
 2017-02-15 18:24:44 +00:00
Pavel Labath ae11b64db6 Skip TestStepOverBreakpoint on windows 
llvm-svn: 295211
 2017-02-15 18:04:50 +00:00
Dehao Chen 726da628e8 Expose getBaseDiscriminatorFromDiscriminator, getDuplicationFactorFromDiscriminator and getCopyIdentifierFromDiscriminator API so that downstream tools can use them to get the correct encoding. 
Summary: Discriminators are now encoded with rich information. This patch exposes the encoding API to downstream tools.

Reviewers: davidxl, hfinkel

Reviewed By: davidxl

Subscribers: llvm-commits

Differential Revision: https://reviews.llvm.org/D29852

llvm-svn: 295210
 2017-02-15 17:54:39 +00:00
Sanjay Patel 056218644b [Inline] add tests to show attribute information loss; NFC 
llvm-svn: 295209
 2017-02-15 17:42:58 +00:00
Simon Pilgrim da25d5c7b6 [X86][SSE] Propagate undef upper elements from scalar_to_vector during shuffle combining 
Only do this for integer types currently - floats types (in particular insertps) load folding often fails with this.

llvm-svn: 295208
 2017-02-15 17:41:33 +00:00
Jonas Devlieghere f9e7b3caba [clang-tidy] Fix test modernize-return-braced-init-list 
llvm-svn: 295207
 2017-02-15 17:37:58 +00:00
Stanislav Mekhanoshin 582a5237f9 [AMDGPU] Revert failed scheduling 
This patch reverts region's scheduling to the original untouched state
in case if we have have decreased occupancy.

In addition it switches to use TargetRegisterInfo occupancy callback
for pressure limits instead of gradually increasing limits which were
just passed by. We are going to stay with the best schedule so we do
not need to tolerate worsened scheduling anymore.

Differential Revision: https://reviews.llvm.org/D29971

llvm-svn: 295206
 2017-02-15 17:19:50 +00:00
Jonas Devlieghere 0a6913bc2f Fixed indentation issue in release notes 
llvm-svn: 295205
 2017-02-15 17:19:44 +00:00
Michael Kruse c28c584604 [DeLICM] Add forgotten unittests in previous commit. NFC. 
llvm-svn: 295204
 2017-02-15 17:19:22 +00:00
Jonathan Peyton 581fdbaad4 Enable yield cycle on Linux 
This change allows the runtime to turn __kmp_yield() on/off repeatedly on Linux.
This feature was removed when disabling monitor thread, but there are
applications that perform better with this feature on.

Patch by Hansang Bae

Differential Revision: https://reviews.llvm.org/D29227

llvm-svn: 295203
 2017-02-15 17:19:21 +00:00
Petr Hosek ce47cf3532 Revert "[libunwind][CMake] Use libc++ headers when available" 
This causing build failure on sanitizer bots because of the unused
argument '-nostdinc++' during linking of libunwind.

This reverts commit 0e14fd1a1d37b9c6d55a2d3bc7649e5b39ce74d3.

llvm-svn: 295202
 2017-02-15 17:15:41 +00:00
Pavel Labath f0713996b2 Revert "Refactor log channel registration mechanism" 
The change breaks on Windows and NetBSD bots. Revert while I
investigate.

llvm-svn: 295201
 2017-02-15 17:13:19 +00:00
Anna Thomas 94c8d4976c Revert "[JumpThreading] Thread through guards" 
This reverts commit r294617.

We fail on an assert while trying to get a condition from an
unconditional branch.

llvm-svn: 295200
 2017-02-15 17:08:29 +00:00
Jonas Devlieghere 2789043178 [clang-tidy] Add check 'modernize-return-braced-init-list' 
Summary:
Replaces explicit calls to the constructor in a return with a braced
initializer list. This way the return type is not needlessly duplicated in the
return type and the return statement.

```
Foo bar() {
  Baz baz;
  return Foo(baz);
}

// transforms to:

Foo bar() {
  Baz baz;
  return {baz};
}
```

Reviewers: hokein, Prazek, aaron.ballman, alexfh

Reviewed By: Prazek, aaron.ballman, alexfh

Subscribers: malcolm.parsons, mgorny, cfe-commits

Tags: #clang-tools-extra

Differential Revision: https://reviews.llvm.org/D28768

llvm-svn: 295199
 2017-02-15 17:06:06 +00:00
Benjamin Kramer 0ac6d124cf [clangd] Fix another use after free that I missed because COW strings. 
llvm-svn: 295198
 2017-02-15 17:04:57 +00:00
Michael Kruse e23e94a08d [DeLICM] Add Knowledge class. NFC. 
The Knowledge class remembers the state of data at any timepoint of a SCoP's
execution. Currently, it tracks whether an array element is unused or is
occupied by some value, and the writes to it. A future addition will be to also
remember which value it contains.

Objects are used to determine whether two Knowledge contain conflicting
information, i.e. two states cannot be true a the same time.

This commit was extracted from the DeLICM algorithm at
https://reviews.llvm.org/D24716.

llvm-svn: 295197
 2017-02-15 16:59:10 +00:00
Benjamin Kramer fbe32f59c2 [clangd] Silence GCC warning about falling off a fully covered switch. 
llvm-svn: 295196
 2017-02-15 16:58:44 +00:00
Simon Pilgrim d811bdd61a [X86] Regenerate scalar stack reload test 
llvm-svn: 295195
 2017-02-15 16:48:45 +00:00
Benjamin Kramer e14bd4246d [clangd] Synchronize logs access. 
I don't think that this is necessary for correctness, but makes tsan
much more useful.

llvm-svn: 295194
 2017-02-15 16:44:11 +00:00
Benjamin Kramer 3858b7d6e9 [clangd] Initialize the thread after the mutex. 
Otherwise locking the mutex yields a racy assertion failure on picky
implementations.

llvm-svn: 295193
 2017-02-15 16:34:58 +00:00
Malcolm Parsons a3bc480455 [clang-tidy] Don't delay parsing of templates in test for misc-unconventional-assign-operator 
llvm-svn: 295192
 2017-02-15 16:32:55 +00:00
Argyrios Kyrtzidis 7d90ed0ac9 [index] USR generation: use getTemplateArgs() instead of getTemplateInstantiationArgs() 
Otherwise we may end up creating a different USR for the definition of a function, vs its declaration.

llvm-svn: 295191
 2017-02-15 16:16:27 +00:00
Pavel Labath 5fb8af40df Refactor log channel registration mechanism 
Summary:
We currently have two log channel registration mechanisms. One uses a
set of function pointers and the other one is based on the
PluginManager.

The PluginManager dependency is unfortunate, as logging
is also used in lldb-server, and the PluginManager pulls in a lot of
classes which are not used in lldb-server.

Both approach have the problem that they leave too much to do for the
user, and so the individual log channels end up reimplementing command
line argument parsing, category listing, etc.

Here, I replace the PluginManager-based approach with a one. The new API
is more declarative, so the user only needs to specify the list of list
of channels, their descriptions, etc., and all the common tasks like
enabling/disabling categories are hadled by common code. I migrate the
LogChannelDWARF (only user of the PluginManager method) to the new API.

In the follow-up commits I'll replace the other channels with something
similar.

Reviewers: clayborg, zturner, beanz

Subscribers: aprantl, lldb-commits

Differential Revision: https://reviews.llvm.org/D29895

llvm-svn: 295190
 2017-02-15 16:11:59 +00:00