platform/upstream/llvm.git
9 years agoChange .thumb_set to have the same error checks as .set.
Pete Cooper [Mon, 22 Jun 2015 19:35:57 +0000 (19:35 +0000)]
Change .thumb_set to have the same error checks as .set.

According to the documentation, .thumb_set is 'the equivalent of a .set directive'.

We didn't have equivalent behaviour in terms of all the errors we could throw, for
example, when a symbol is redefined.

This change refactors parseAssignment so that it can be used by .set and .thumb_set
and implements tests for .thumb_set for all the errors thrown by that method.

Reviewed by Rafael Espíndola.

llvm-svn: 240318

9 years agoRemove "const" from the MachineFunction reference in VLIWPacketizerList
Krzysztof Parzyszek [Mon, 22 Jun 2015 18:59:44 +0000 (18:59 +0000)]
Remove "const" from the MachineFunction reference in VLIWPacketizerList

llvm-svn: 240317

9 years agodocs: Update allowed values for LLVM_USE_SANITIZER
Justin Bogner [Mon, 22 Jun 2015 18:55:46 +0000 (18:55 +0000)]
docs: Update allowed values for LLVM_USE_SANITIZER

"Thread" and combinations of "Address" and "Undefined" have been
accepted for a while now.

llvm-svn: 240316

9 years agoMake CMake generate isl/stdint.h
Michael Kruse [Mon, 22 Jun 2015 18:47:39 +0000 (18:47 +0000)]
Make CMake generate isl/stdint.h

ISL's ./configure examines the system for the stdint.h to include and
creates a header file that points to it. On C99-compatible system

    #include <stdint.h>

is always valid such there no need for system introspection. This should
unbreak the build bots.

llvm-svn: 240315

9 years agotest: Set lit features appropriately when using asan and ubsan together
Justin Bogner [Mon, 22 Jun 2015 18:47:10 +0000 (18:47 +0000)]
test: Set lit features appropriately when using asan and ubsan together

The asan/not_asan and ubsan/not_ubsan features weren't being set
correctly when LLVM_USE_SANITIZER is set to 'Address;Undefined'. Fix
this by doing substring instead of exact matching. Also simplify the
msan check for consistency.

llvm-svn: 240314

9 years ago[modules] Include merged definition information in AST dumps.
Richard Smith [Mon, 22 Jun 2015 18:47:01 +0000 (18:47 +0000)]
[modules] Include merged definition information in AST dumps.

llvm-svn: 240313

9 years agoHandle zero-element ArrayRefs in CUDA run-time debug builder
Tobias Grosser [Mon, 22 Jun 2015 18:45:23 +0000 (18:45 +0000)]
Handle zero-element ArrayRefs in CUDA run-time debug builder

llvm-svn: 240312

9 years ago[x86] set default reciprocal (division and square root) codegen to match GCC
Sanjay Patel [Mon, 22 Jun 2015 18:29:44 +0000 (18:29 +0000)]
[x86] set default reciprocal (division and square root) codegen to match GCC

D8982 ( checked in at http://reviews.llvm.org/rL239001 ) added command-line
options to allow reciprocal estimate instructions to be used in place of
divisions and square roots.

This patch changes the default settings for x86 targets to allow that recip
codegen (except for scalar division because that breaks too much code) when
using -ffast-math or its equivalent.

This matches GCC behavior for this kind of codegen.

Differential Revision: http://reviews.llvm.org/D10396

llvm-svn: 240310

9 years agoFix MSVC build (again!).
Sanjoy Das [Mon, 22 Jun 2015 18:24:50 +0000 (18:24 +0000)]
Fix MSVC build (again!).

Remove two `typename`s that I should have removed in r240307 but left in
by mistake.

llvm-svn: 240309

9 years agoDo not pass -allow-shlib-undefined to the Solaris linker.
Rafael Espindola [Mon, 22 Jun 2015 18:24:01 +0000 (18:24 +0000)]
Do not pass -allow-shlib-undefined to the Solaris linker.

Patch by Xan López.

llvm-svn: 240308

9 years agoFix MSVC build.
Sanjoy Das [Mon, 22 Jun 2015 18:20:10 +0000 (18:20 +0000)]
Fix MSVC build.

I had some unnecessary `typename`s left in after addressing review.
This compiled successfully with clang++ but MSVC reported an error.  Fix
the build error by removing the redundant `typename`s.

llvm-svn: 240307

9 years agoReplace repository version of ISL by 'make dist' output
Michael Kruse [Mon, 22 Jun 2015 18:07:42 +0000 (18:07 +0000)]
Replace repository version of ISL by 'make dist' output

The 'make dist' archive is not dependent on ./configure output and
contains a GIT_HEAD_ID file that identifies the version of ISL used.

None of the files added or removed are used part of Polly's build
process (except of GIT_HEAD_ID since the previous revision r240301). No
functional change intended.

llvm-svn: 240306

9 years agoRemove the IsStreamed member variable.
Rafael Espindola [Mon, 22 Jun 2015 18:06:15 +0000 (18:06 +0000)]
Remove the IsStreamed member variable.

Having different code paths for streamed and regular bitcode reading was a
source of bugs in the past and this defines them away.

It has a small but noticeable impact on performance. I timed running
"opt -disable-output -disable-verify" on a ltoed clang. It goes from

14.752845231 seconds time elapsed   ( +-  0.16% )

to

15.012463721 seconds time elapsed   ( +-  0.11% )

Extracted from a patch by Karl Schimpf.

llvm-svn: 240305

9 years ago[FaultMaps] Add a parser for the __llvm__faultmaps section.
Sanjoy Das [Mon, 22 Jun 2015 18:03:02 +0000 (18:03 +0000)]
[FaultMaps] Add a parser for the __llvm__faultmaps section.

Summary:
The parser is exercised by llvm-objdump using -print-fault-maps.  As is
probably obvious, the code itself was "heavily inspired" by
http://reviews.llvm.org/D10434.

Reviewers: reames, atrick, JosephTremoulet

Subscribers: llvm-commits

Differential Revision: http://reviews.llvm.org/D10491

llvm-svn: 240304

9 years ago[NFC] Capitalization in documentation.
Sanjoy Das [Mon, 22 Jun 2015 18:02:55 +0000 (18:02 +0000)]
[NFC] Capitalization in documentation.

llvm-svn: 240303

9 years agoBring r240130 back.
Rafael Espindola [Mon, 22 Jun 2015 17:52:52 +0000 (17:52 +0000)]
Bring r240130 back.

Now that pr23900 is fixed, we can bring it back with no changes.

Original message:

Make all temporary symbols unnamed.

What this does is make all symbols that would otherwise start with a .L
(or L on MachO) unnamed.

Some of these symbols still show up in the symbol table, but we can just
make them unnamed.

In order to make sure we produce identical results when going thought assembly,
all .L (not just the compiler produced ones), are now unnamed.

Running llc on llvm-as.opt.bc, the peak memory usage goes from 208.24MB to
205.57MB.

llvm-svn: 240302

9 years agoPrepare replacing ISL by its 'make dist' files
Michael Kruse [Mon, 22 Jun 2015 17:52:33 +0000 (17:52 +0000)]
Prepare replacing ISL by its 'make dist' files

Currently the Polly repository contains the ISL sources with bogus
isl_config.h and gitversion.h. This is problematic. In this state a
 macro

    #define __attribute__(x)

becomes active in the source, leading to various problems e.g. when
included before system header files. This patch will instead generate
the two files specific to the host system at configure-time.

For CMake, we replicate the tests that ISL's configure performs using
try_compile(). In autotools build, we just invoke ISL's configure to
generate the two files. This consequently required regenerating
autoconf/configure.

'make dist' distributions of ISL contain a file GIT_HEAD_ID which
contains the version the distribution is derived from. The repository
files themselves do not contain such a hint. In a later commit we will
replace the isl directory by the contents of such a .tar.gz. It does
not contain the files imdrover.c iprime.c pi.c and rsamath.c currently
compiled into Polly, but not used and therefore are removed by this
patch.

In the long term we plan to generate a dedicated library for ISL instead
of adding its files to Polly.

This also does not yet include the switch to small-integer optimized ISL
nor enabling C99 mode required for the former. Those will come as well
in separate patches.

Differential version: http://reviews.llvm.org/D10603

Reviewers: grosser
llvm-svn: 240301

9 years agoAvoid a Symbol -> Name -> Symbol conversion.
Rafael Espindola [Mon, 22 Jun 2015 17:46:53 +0000 (17:46 +0000)]
Avoid a Symbol -> Name -> Symbol conversion.

Before this we were producing a TargetExternalSymbol from a MCSymbol.
That meant extracting the symbol name and fetching the symbol again
down the pipeline.

This patch adds a DAG.getMCSymbol that lets the MCSymbol pass unchanged on the
DAG.

Doing so removes the need for MO_NOPREFIX and fixes the root cause of pr23900,
allowing r240130 to be committed again.

llvm-svn: 240300

9 years agoCleanup the code a bit to make it more readable.
Greg Clayton [Mon, 22 Jun 2015 17:38:30 +0000 (17:38 +0000)]
Cleanup the code a bit to make it more readable.

Add some if/then to avoid calling a function to get dynamic/synthetic types if we know we aren't going to need to call it.

Avoid calling a function that returns a shared pointer twice: once for testing it and once for assigning it (even though that shared pointer is cached inside the value object), it just makes the code a bit clearer.

llvm-svn: 240299

9 years agoFix typo.
Rui Ueyama [Mon, 22 Jun 2015 17:26:27 +0000 (17:26 +0000)]
Fix typo.

llvm-svn: 240298

9 years agoMisc. cleanups suggested by Aaron Ballman
Douglas Gregor [Mon, 22 Jun 2015 17:19:03 +0000 (17:19 +0000)]
Misc. cleanups suggested by Aaron Ballman

llvm-svn: 240297

9 years agoDocument the nullability attributes.
Douglas Gregor [Mon, 22 Jun 2015 17:06:56 +0000 (17:06 +0000)]
Document the nullability attributes.

llvm-svn: 240296

9 years agoMIR Serialization: Serialize machine instruction names.
Alex Lorenz [Mon, 22 Jun 2015 17:02:30 +0000 (17:02 +0000)]
MIR Serialization: Serialize machine instruction names.

This commit implements initial machine instruction serialization. It
serializes machine instruction names. The instructions are represented
using a YAML sequence of string literals and are a part of machine
basic block YAML mapping.

This commit introduces a class called 'MIParser' which will be used to
parse the machine instructions and operands.

Reviewers: Duncan P. N. Exon Smith

Differential Revision: http://reviews.llvm.org/D10481

llvm-svn: 240295

9 years agoAllow machine hierarchy expansion
Jonathan Peyton [Mon, 22 Jun 2015 15:59:18 +0000 (15:59 +0000)]
Allow machine hierarchy expansion

This fix allows the machine hierarchy to be expanded in case it needs to handle
more threads. It adds a resize function to accomplish this.

Differential Revision: http://reviews.llvm.org/D9900

llvm-svn: 240292

9 years agoFix shl folding in DAG combiner.
Pawel Bylica [Mon, 22 Jun 2015 15:58:11 +0000 (15:58 +0000)]
Fix shl folding in DAG combiner.

Summary: The code responsible for shl folding in the DAGCombiner was assuming incorrectly that all constants are less than 64 bits. This patch simply changes the way values are compared.

Test Plan: A regression test included.

Reviewers: andreadb

Reviewed By: andreadb

Subscribers: andreadb, test, llvm-commits

Differential Revision: http://reviews.llvm.org/D10602

llvm-svn: 240291

9 years agoRe-enable Visual Studio Builds.
Jonathan Peyton [Mon, 22 Jun 2015 15:53:50 +0000 (15:53 +0000)]
Re-enable Visual Studio Builds.

I tried to compile with Visual Studio using CMake and found these two sections of code
causing problems for Visual Studio.  The first one removes the use of variable length
arrays by instead using KMP_ALLOCA().  The second part eliminates a redundant cpuid
assembly call by using the already existing __kmp_x86_cpuid() call instead.

llvm-svn: 240290

9 years agoAdd a triple to the test to fix it on some hosts.
Rafael Espindola [Mon, 22 Jun 2015 15:44:20 +0000 (15:44 +0000)]
Add a triple to the test to fix it on some hosts.

The slp vectorizer doesn't optimize this case in 32 bits.

Fixes PR23453.

llvm-svn: 240289

9 years ago[ORC] Add NullResolver
Joseph Tremoulet [Mon, 22 Jun 2015 15:27:58 +0000 (15:27 +0000)]
[ORC] Add NullResolver

Summary:
This is an implementation of RuntimeDyld::SymbolResolver that simply
rejects all resolution requests; useful for clients that do not have any
cross-object symbol references.

Reviewers: lhames

Reviewed By: lhames

Subscribers: llvm-commits

Differential Revision: http://reviews.llvm.org/D10455

llvm-svn: 240288

9 years agoSupport Solaris unused sections' gc link syntax.
Rafael Espindola [Mon, 22 Jun 2015 15:06:17 +0000 (15:06 +0000)]
Support Solaris unused sections' gc link syntax.

It is not clear if this would work or not with LLVM_NO_DEAD_STRIP
binaries, so be conservative for now.

Patch by Xan López.

llvm-svn: 240287

9 years agoMake seeking on an ostream that has eofbit set work correctly. Fixes PR#21361
Marshall Clow [Mon, 22 Jun 2015 15:01:21 +0000 (15:01 +0000)]
Make seeking on an ostream that has eofbit set work correctly. Fixes PR#21361

llvm-svn: 240286

9 years agoTest Commit
Jaydeep Patil [Mon, 22 Jun 2015 13:58:30 +0000 (13:58 +0000)]
Test Commit

llvm-svn: 240280

9 years agoDon't use &* when get() will suffice; NFC.
Aaron Ballman [Mon, 22 Jun 2015 13:28:21 +0000 (13:28 +0000)]
Don't use &* when get() will suffice; NFC.

llvm-svn: 240279

9 years ago[mips] [IAS] Add support for LAReg with identical source and destination register...
Toma Tabacu [Mon, 22 Jun 2015 13:10:23 +0000 (13:10 +0000)]
[mips] [IAS] Add support for LAReg with identical source and destination register operands.

Summary: In this case, we're supposed to load the immediate in AT and then ADDu it with the source register and put it in the destination register.

Reviewers: dsanders

Reviewed By: dsanders

Subscribers: llvm-commits

Differential Revision: http://reviews.llvm.org/D9367

llvm-svn: 240278

9 years agoAVX-512: added VPSHUFB instruction - all SKX forms
Elena Demikhovsky [Mon, 22 Jun 2015 13:00:42 +0000 (13:00 +0000)]
AVX-512: added VPSHUFB instruction - all SKX forms
Added intrinsics and encoding tests.

llvm-svn: 240277

9 years agoDo not pass optimization flags to Solaris' linker.
Rafael Espindola [Mon, 22 Jun 2015 12:41:52 +0000 (12:41 +0000)]
Do not pass optimization flags to Solaris' linker.

It is not supported.

Patch by Xan López.

llvm-svn: 240276

9 years agoUse right syntax to pass version script to Solaris' ld.
Rafael Espindola [Mon, 22 Jun 2015 12:34:54 +0000 (12:34 +0000)]
Use right syntax to pass version script to Solaris' ld.

Patch by Xan Lopez!

llvm-svn: 240275

9 years ago[mips] [IAS] Add support for LASym with identical source and destination register...
Toma Tabacu [Mon, 22 Jun 2015 12:08:39 +0000 (12:08 +0000)]
[mips] [IAS] Add support for LASym with identical source and destination register operands.

Summary:
In this case, we're supposed to load the address of the symbol in AT and then ADDu it with the source register and
put it in the destination register.

Reviewers: dsanders

Reviewed By: dsanders

Subscribers: llvm-commits

Differential Revision: http://reviews.llvm.org/D9366

llvm-svn: 240273

9 years agoAVX-512: All forms of VCOPMRESS VEXPAND instructions,
Elena Demikhovsky [Mon, 22 Jun 2015 11:16:30 +0000 (11:16 +0000)]
AVX-512: All forms of VCOPMRESS VEXPAND instructions,
encoding tests.

llvm-svn: 240272

9 years agoFixed/added namespace ending comments using clang-tidy. NFC
Alexander Kornienko [Mon, 22 Jun 2015 09:57:54 +0000 (09:57 +0000)]
Fixed/added namespace ending comments using clang-tidy. NFC

A few more files that were fixed while preparing r240270.

llvm-svn: 240271

9 years agoFixed/added namespace ending comments using clang-tidy. NFC
Alexander Kornienko [Mon, 22 Jun 2015 09:47:44 +0000 (09:47 +0000)]
Fixed/added namespace ending comments using clang-tidy. NFC

The patch is generated using this command:

  $ tools/extra/clang-tidy/tool/run-clang-tidy.py -fix \
      -checks=-*,llvm-namespace-comment -header-filter='llvm/.*|clang/.*' \
      work/llvm/tools/clang

To reduce churn, not touching namespaces spanning less than 10 lines.

llvm-svn: 240270

9 years agoRemoving empty directories.
Alexander Kornienko [Mon, 22 Jun 2015 09:34:18 +0000 (09:34 +0000)]
Removing empty directories.

llvm-svn: 240269

9 years ago[Mips] Support R_MICROMIPS_HI0_LO16 relocation handling
Simon Atanasyan [Mon, 22 Jun 2015 09:27:05 +0000 (09:27 +0000)]
[Mips] Support R_MICROMIPS_HI0_LO16 relocation handling

llvm-svn: 240268

9 years ago[Mips] Support R_MICROMIPS_LITERAL relocation handling
Simon Atanasyan [Mon, 22 Jun 2015 09:26:57 +0000 (09:26 +0000)]
[Mips] Support R_MICROMIPS_LITERAL relocation handling

llvm-svn: 240267

9 years ago[Mips] Support R_MIPS_LITERAL relocation handling
Simon Atanasyan [Mon, 22 Jun 2015 09:26:48 +0000 (09:26 +0000)]
[Mips] Support R_MIPS_LITERAL relocation handling

llvm-svn: 240266

9 years ago[Mips] Support R_MICROMIPS_SUB relocation handling
Simon Atanasyan [Mon, 22 Jun 2015 09:26:41 +0000 (09:26 +0000)]
[Mips] Support R_MICROMIPS_SUB relocation handling

llvm-svn: 240265

9 years ago[Mips] Reject R_MIPS_GPREL32 against external symbols
Simon Atanasyan [Mon, 22 Jun 2015 09:26:33 +0000 (09:26 +0000)]
[Mips] Reject R_MIPS_GPREL32 against external symbols

llvm-svn: 240264

9 years ago[Mips] Fix test case - do not use R_MIPS_GPREL32 against external symbols
Simon Atanasyan [Mon, 22 Jun 2015 09:26:25 +0000 (09:26 +0000)]
[Mips] Fix test case - do not use R_MIPS_GPREL32 against external symbols

No functional changes.

llvm-svn: 240263

9 years ago[Mips] Reject position-dependent relocations in case of shared library linking
Simon Atanasyan [Mon, 22 Jun 2015 09:26:20 +0000 (09:26 +0000)]
[Mips] Reject position-dependent relocations in case of shared library linking

llvm-svn: 240262

9 years ago[Mips] Fix test case - do not use R_MIPS_HI16 for shared library linking
Simon Atanasyan [Mon, 22 Jun 2015 09:26:12 +0000 (09:26 +0000)]
[Mips] Fix test case - do not use R_MIPS_HI16 for shared library linking

No functional changes.

llvm-svn: 240261

9 years ago[Mips] Support R_MICROMIPS_HIGHER / R_MICROMIPS_HIGHEST relocations handling
Simon Atanasyan [Mon, 22 Jun 2015 09:26:05 +0000 (09:26 +0000)]
[Mips] Support R_MICROMIPS_HIGHER / R_MICROMIPS_HIGHEST relocations handling

llvm-svn: 240260

9 years ago[Mips] Support R_MIPS_HIGHER / R_MIPS_HIGHEST relocations handling
Simon Atanasyan [Mon, 22 Jun 2015 09:25:57 +0000 (09:25 +0000)]
[Mips] Support R_MIPS_HIGHER / R_MIPS_HIGHEST relocations handling

llvm-svn: 240259

9 years agoReverted AVX-512 vector shuffle
Elena Demikhovsky [Mon, 22 Jun 2015 09:01:15 +0000 (09:01 +0000)]
Reverted AVX-512 vector shuffle

llvm-svn: 240258

9 years ago[X86] Allow more call sequences to use push instructions for argument passing
Michael Kuperstein [Mon, 22 Jun 2015 08:31:22 +0000 (08:31 +0000)]
[X86] Allow more call sequences to use push instructions for argument passing

This allows more call sequences to use pushes instead of movs when optimizing for size.
In particular, calling conventions that pass some parameters in registers (e.g. thiscall) are now supported.

Differential Revision: http://reviews.llvm.org/D10500

llvm-svn: 240257

9 years agoAVX-512: Added intrinsics for VPERMT2W/D/Q/PS/PD and
Elena Demikhovsky [Mon, 22 Jun 2015 06:45:48 +0000 (06:45 +0000)]
AVX-512: Added intrinsics for VPERMT2W/D/Q/PS/PD and
VPERMI2W/D/Q/PS/PD instructions.
Added tests.

llvm-svn: 240256

9 years ago[PM/AA] Hoist the AliasResult enum out of the AliasAnalysis class.
Chandler Carruth [Mon, 22 Jun 2015 02:16:51 +0000 (02:16 +0000)]
[PM/AA] Hoist the AliasResult enum out of the AliasAnalysis class.

This will allow classes to implement the AA interface without deriving
from the class or referencing an internal enum of some other class as
their return types.

Also, to a pretty fundamental extent, concepts such as 'NoAlias',
'MayAlias', and 'MustAlias' are first class concepts in LLVM and we
aren't saving anything by scoping them heavily.

My mild preference would have been to use a scoped enum, but that
feature is essentially completely broken AFAICT. I'm extremely
disappointed. For example, we cannot through any reasonable[1] means
construct an enum class (or analog) which has scoped names but converts
to a boolean in order to test for the possibility of aliasing.

[1]: Richard Smith came up with a "solution", but it requires class
templates, and lots of boilerplate setting up the enumeration multiple
times. Something like Boost.PP could potentially bundle this up, but
even that would be quite painful and it doesn't seem realistically worth
it. The enum class solution would probably work without the need for
a bool conversion.

Differential Revision: http://reviews.llvm.org/D10495

llvm-svn: 240255

9 years ago[PM/AA] Rework the names and comments in AliasSetTracker to more
Chandler Carruth [Mon, 22 Jun 2015 02:12:52 +0000 (02:12 +0000)]
[PM/AA] Rework the names and comments in AliasSetTracker to more
accurately describe what is being tracked.

While these two enums do track mod/ref information and aliasing
information, they don't represent the exact same things as either the
mod/ref enums or the alias result enum in AA. They're definitions are
dominated by the structure of their lattice and the bit's various
semantics. This patch just calls them what they are and tries to spell
out usefully distinct names for these things.

This will clear the path for using a raw unscoped enum to represent some
of these concepts across LLVM's analysis library.

No functionality changed here.

Differential Revision: http://reviews.llvm.org/D10494

llvm-svn: 240254

9 years agoAdd the testcase from pr23900.
Rafael Espindola [Mon, 22 Jun 2015 01:29:24 +0000 (01:29 +0000)]
Add the testcase from pr23900.

llvm-svn: 240253

9 years agoRemove incomplete comment.
Davide Italiano [Mon, 22 Jun 2015 01:19:59 +0000 (01:19 +0000)]
Remove incomplete comment.

llvm-svn: 240252

9 years agoSema: add a helper for enumerating the TST id (NFC)
Saleem Abdulrasool [Sun, 21 Jun 2015 23:05:52 +0000 (23:05 +0000)]
Sema: add a helper for enumerating the TST id (NFC)

The same pattern was repeated a few times.  Create a trivial helper method to
map the Type Specifier to an ID for the diagnostic.  Flip the selection order on
one of the diagnostic messages to get the same ordering across all of the
messages.  This makes the emission of the diagnostic slightly more legible by
changing the cascading ternary into a switch in a function.  NFC.

llvm-svn: 240251

9 years agoCOFF: Support delay-load import tables.
Rui Ueyama [Sun, 21 Jun 2015 22:31:52 +0000 (22:31 +0000)]
COFF: Support delay-load import tables.

DLLs are usually resolved at process startup, but you can
delay-load them by passing /delayload option to the linker.

If a /delayload is specified, the linker has to create data
which is similar to regular import table.
One notable difference is that the pointers in a delay-load
import table are originally pointing to thunks that resolves
themselves. Each thunk loads a DLL, resolve its name, and then
overwrites the pointer with the result so that subsequent
function calls directly call a desired function. The linker
has to emit thunks.

llvm-svn: 240250

9 years ago[X86] Code tidyup - Use SDValue bool operator. NFC.
Simon Pilgrim [Sun, 21 Jun 2015 21:34:32 +0000 (21:34 +0000)]
[X86] Code tidyup - Use SDValue bool operator. NFC.

llvm-svn: 240249

9 years agoClean up CLCompatOptions.td a bit.
Nico Weber [Sun, 21 Jun 2015 20:49:05 +0000 (20:49 +0000)]
Clean up CLCompatOptions.td a bit.

Move /Qvec flags from the "// Non-aliases:" section up to the "// Aliases:"
section since the flags are just aliases.  For the same reason, move the
/vm flags the other way.  Also reflow a few lines to 80 columns.

No behavior change.

llvm-svn: 240248

9 years agoASTReader: Treat InputFileOffsets as unaligned to avoid UB
Justin Bogner [Sun, 21 Jun 2015 20:32:40 +0000 (20:32 +0000)]
ASTReader: Treat InputFileOffsets as unaligned to avoid UB

This is a better approach to fixing the undefined behaviour I tried to
fix in r240228. This data doesn't necessarily have suitable alignment
for uint64_t, so use unaligned_uint64_t instead.

This fixes 225 test failures when clang is built with ubsan.

llvm-svn: 240247

9 years agoRevert "ASTReader: Copy input file offset data to avoid unaligned accesses"
Justin Bogner [Sun, 21 Jun 2015 20:32:36 +0000 (20:32 +0000)]
Revert "ASTReader: Copy input file offset data to avoid unaligned accesses"

We can do this better by changing the type to unaligned_uint64_t and
paying the cost on use instead of up front.

This reverts r240228

llvm-svn: 240246

9 years agoSema: convert decl + while loop into for loop (NFC)
Saleem Abdulrasool [Sun, 21 Jun 2015 18:20:01 +0000 (18:20 +0000)]
Sema: convert decl + while loop into for loop (NFC)

Convert a hand rolled for loop into an explicit for loop.  NFC.

llvm-svn: 240245

9 years agoAsmPrinter: Don't emit empty .debug_loc entries
Duncan P. N. Exon Smith [Sun, 21 Jun 2015 16:54:56 +0000 (16:54 +0000)]
AsmPrinter: Don't emit empty .debug_loc entries

If we don't know how to represent a .debug_loc entry, skip the entry
entirely rather than emitting an empty one.  Similarly, if a .debug_loc
list has no entries, don't create the list.

We still want to create the variables, just in an optimized-out form
that doesn't have a DW_AT_location.

llvm-svn: 240244

9 years agoAsmPrinter: Rewrite initialization of DbgVariable, NFC
Duncan P. N. Exon Smith [Sun, 21 Jun 2015 16:50:43 +0000 (16:50 +0000)]
AsmPrinter: Rewrite initialization of DbgVariable, NFC

There are three types of `DbgVariable`:
  - alloca variables, created based on the MMI table,
  - register variables, created based on DBG_VALUE instructions, and
  - optimized-out variables.

This commit reconfigures `DbgVariable` to make it easier to tell which
kind we have, and make initialization a little clearer.

For MMI/alloca variables, `FrameIndex.size()` must always equal
`Expr.size()`, and there shouldn't be an `MInsn`.  For register
variables (with a `MInsn`), `FrameIndex` must be empty, and `Expr`
should have 0 or 1 element depending on whether it has a complex
expression (registers with multiple locations use `DebugLocListIndex`).
Optimized-out variables shouldn't have any of these fields.

Moreover, this separates DBG_VALUE initialization until after the
variable is created, simplifying logic in a future commit that changes
`collectVariableInfo()` to stop creating empty .debug_loc entries/lists.

llvm-svn: 240243

9 years ago[Codegen] Don't crash if destructor is not accessible.
Davide Italiano [Sun, 21 Jun 2015 16:33:50 +0000 (16:33 +0000)]
[Codegen] Don't crash if destructor is not accessible.

Testcase provided, in the PR, by Christian Shelton and
reduced by David Majnemer.

PR: 23584
Differential Revision: http://reviews.llvm.org/D10508
Reviewed by: rnk

llvm-svn: 240242

9 years ago[X86][SSE] Added missing stack folding test for CVTSD2SS instruction.
Simon Pilgrim [Sun, 21 Jun 2015 16:07:47 +0000 (16:07 +0000)]
[X86][SSE] Added missing stack folding test for CVTSD2SS instruction.

llvm-svn: 240241

9 years agoOptTable.h: Prune a couple of \param(s), since Arg has been ArrayRef-ized. [-Wdocumen...
NAKAMURA Takumi [Sun, 21 Jun 2015 13:44:46 +0000 (13:44 +0000)]
OptTable.h: Prune a couple of \param(s), since Arg has been ArrayRef-ized. [-Wdocumentation]

llvm-svn: 240240

9 years agoUpdate for ParseARgs ArrayRef-ification
David Blaikie [Sun, 21 Jun 2015 06:58:19 +0000 (06:58 +0000)]
Update for ParseARgs ArrayRef-ification

llvm-svn: 240239

9 years agoDevirtualize ArgList's dtor now that -Wvirtual-dtor and C++11 allow a better way...
David Blaikie [Sun, 21 Jun 2015 06:51:35 +0000 (06:51 +0000)]
Devirtualize ArgList's dtor now that -Wvirtual-dtor and C++11 allow a better way to describe this situation

llvm-svn: 240238

9 years agoArrayRef-ify ParseArgs
David Blaikie [Sun, 21 Jun 2015 06:32:36 +0000 (06:32 +0000)]
ArrayRef-ify ParseArgs

llvm-svn: 240237

9 years agoArrayRef-ify Driver::parse and related functions.
David Blaikie [Sun, 21 Jun 2015 06:32:10 +0000 (06:32 +0000)]
ArrayRef-ify Driver::parse and related functions.

llvm-svn: 240236

9 years agoArrayRef-ify ParseArgs
David Blaikie [Sun, 21 Jun 2015 06:32:04 +0000 (06:32 +0000)]
ArrayRef-ify ParseArgs

llvm-svn: 240235

9 years agoArrayRef-ify libDriverMain
David Blaikie [Sun, 21 Jun 2015 06:31:56 +0000 (06:31 +0000)]
ArrayRef-ify libDriverMain

llvm-svn: 240234

9 years agoArrayRef-ify ParseArgs
David Blaikie [Sun, 21 Jun 2015 06:31:53 +0000 (06:31 +0000)]
ArrayRef-ify ParseArgs

llvm-svn: 240233

9 years agoCOFF: Use short varaible name. NFC.
Rui Ueyama [Sun, 21 Jun 2015 04:10:54 +0000 (04:10 +0000)]
COFF: Use short varaible name. NFC.

llvm-svn: 240232

9 years agoCOFF: Support exception table.
Rui Ueyama [Sun, 21 Jun 2015 04:00:54 +0000 (04:00 +0000)]
COFF: Support exception table.

.pdata section contains a list of triplets of function start address,
function end address and its unwind information. Linkers have to
sort section contents by function start address and set the section
address to the file header (so that runtime is able to find it and
do binary search.)

This change seems to resolve all but one remaining test failures in
check{,-clang,-lld} when building the entire stuff with clang-cl and
lld-link.

llvm-svn: 240231

9 years agoObject: Add load configuration structure for 64 bit PE/COFF.
Rui Ueyama [Sun, 21 Jun 2015 01:12:32 +0000 (01:12 +0000)]
Object: Add load configuration structure for 64 bit PE/COFF.

llvm-svn: 240230

9 years agoCOFF: Combine add{Object,Archive,Bitcode,Import} functions. NFC.
Rui Ueyama [Sat, 20 Jun 2015 23:10:05 +0000 (23:10 +0000)]
COFF: Combine add{Object,Archive,Bitcode,Import} functions. NFC.

llvm-svn: 240229

9 years agoASTReader: Copy input file offset data to avoid unaligned accesses
Justin Bogner [Sat, 20 Jun 2015 22:31:04 +0000 (22:31 +0000)]
ASTReader: Copy input file offset data to avoid unaligned accesses

We interpret Blob as an array of uint64_t here, but there's no reason
to think that it has suitable alignment. Instead, read the data in in
an alignment-safe way and store it in a std::vector.

This fixes 225 test failures when clang is built with ubsan.

llvm-svn: 240228

9 years agoAdd missing dependency clangFrontend to clangQuery.
Adrian Prantl [Sat, 20 Jun 2015 19:28:07 +0000 (19:28 +0000)]
Add missing dependency clangFrontend to clangQuery.

llvm-svn: 240227

9 years agoAdd missing dependency clangFrontend to unit test.
Adrian Prantl [Sat, 20 Jun 2015 19:21:04 +0000 (19:21 +0000)]
Add missing dependency clangFrontend to unit test.

llvm-svn: 240226

9 years agoIntroduce a PCHContainerOperations interface (NFC).
Adrian Prantl [Sat, 20 Jun 2015 18:53:08 +0000 (18:53 +0000)]
Introduce a PCHContainerOperations interface (NFC).

A PCHContainerOperations abstract interface provides operations for
creating and unwrapping containers for serialized ASTs (precompiled
headers and clang modules). The default implementation is
RawPCHContainerOperations, which uses a flat file for the output.

The main application for this interface will be an
ObjectFilePCHContainerOperations implementation that uses LLVM to
wrap the module in an ELF/Mach-O/COFF container to store debug info
alongside the AST.

rdar://problem/20091852

llvm-svn: 240225

9 years agoSwitch lowering: add heuristic for filling leaf nodes in the weight-balanced binary...
Hans Wennborg [Sat, 20 Jun 2015 17:14:07 +0000 (17:14 +0000)]
Switch lowering: add heuristic for filling leaf nodes in the weight-balanced binary search tree

Sparse switches with profile info are lowered as weight-balanced BSTs. For
example, if the node weights are {1,1,1,1,1,1000}, the right-most node would
end up in a tree by itself, bringing it closer to the top.

However, a leaf in this BST can contain up to 3 cases, and having a single
case in a leaf node as in the example means the tree might become
unnecessarily high.

This patch adds a heauristic to the pivot selection algorithm that moves more
cases into leaf nodes unless that would lower their rank. It still doesn't
yield the optimal tree in every case, but I believe it's conservatibely correct.

llvm-svn: 240224

9 years ago[X86][SSE] Fix PerformSExtCombine bug that accessed the wrong return value of an...
Simon Pilgrim [Sat, 20 Jun 2015 16:19:24 +0000 (16:19 +0000)]
[X86][SSE] Fix PerformSExtCombine bug that accessed the wrong return value of an aggregate type.

Fix to rL237885 to ensure that it accesses the correct return value of an aggregate type.

llvm-svn: 240223

9 years ago[PPC] Factor vector removal into a function and remove O(n^2) behavior.
Benjamin Kramer [Sat, 20 Jun 2015 15:59:41 +0000 (15:59 +0000)]
[PPC] Factor vector removal into a function and remove O(n^2) behavior.

No functionality change intended.

llvm-svn: 240222

9 years ago[SwitchLowering] Remove quadratic vector removal.
Benjamin Kramer [Sat, 20 Jun 2015 15:59:34 +0000 (15:59 +0000)]
[SwitchLowering] Remove quadratic vector removal.

This can be triggered with giant switches. No functionality change
intended.

llvm-svn: 240221

9 years agoAvoid clearing an empty PrioritizedCXXGlobalInits, NFC
Yaron Keren [Sat, 20 Jun 2015 15:51:52 +0000 (15:51 +0000)]
Avoid clearing an empty PrioritizedCXXGlobalInits, NFC

We already test for PrioritizedCXXGlobalInits being non-empty
and process it so it makes sense to clear it only in that if.

llvm-svn: 240220

9 years ago[X86][SSE][CostModel] Added full set of sitofp/uitofp costings for SSE2/AVX/AVX2...
Simon Pilgrim [Sat, 20 Jun 2015 14:58:01 +0000 (14:58 +0000)]
[X86][SSE][CostModel] Added full set of sitofp/uitofp costings for SSE2/AVX/AVX2/AVX512F.

Merged separate (but equivalent) SSE2/AVX512F tests.

Removed codegen tests since these are already done better in test/CodeGen/X86.

The actual cost values still need to be updated to match recent codegen improvements.

llvm-svn: 240219

9 years agoUpdate ELFObjectWriter::reset() following r238073.
Yaron Keren [Sat, 20 Jun 2015 11:54:32 +0000 (11:54 +0000)]
Update ELFObjectWriter::reset() following r238073.

llvm-svn: 240218

9 years agoCOFF: Fix common symbol alignment.
Rui Ueyama [Sat, 20 Jun 2015 07:25:45 +0000 (07:25 +0000)]
COFF: Fix common symbol alignment.

llvm-svn: 240217

9 years agoCOFF: Fix a common symbol bug.
Rui Ueyama [Sat, 20 Jun 2015 07:21:57 +0000 (07:21 +0000)]
COFF: Fix a common symbol bug.

This is a case that one mistake caused a very mysterious bug.
I made a mistake to calculate addresses of common symbols, so
each common symbol pointed not to the beginning of its location
but to the end of its location. (Ouch!)

Common symbols are aligned on 16 byte boundaries. If a common
symbol is small enough to fit between the end of its real
location and whatever comes next, this bug didn't cause any harm.

However, if a common symbol is larger than that, its memory
naturally overlapped with other symbols. That means some
uninitialized variables accidentally shared memory. Because
totally unrelated memory writes mutated other varaibles, it was
hard to debug.

It's surprising that LLD was able to link itself and all LLD
tests except gunit tests passed with this nasty bug.

With this fix, the new COFF linker is able to pass all tests
for LLVM, Clang and LLD if I use MSVC cl.exe as a compiler.
Only three tests are failing when used with clang-cl.

llvm-svn: 240216

9 years agoRangify for loops in Inliner::runOnSCC(), NFC.
Yaron Keren [Sat, 20 Jun 2015 07:12:33 +0000 (07:12 +0000)]
Rangify for loops in Inliner::runOnSCC(), NFC.

llvm-svn: 240215

9 years agoIndVarSimplify: Avoid UB from binding a reference to a null pointer
Justin Bogner [Sat, 20 Jun 2015 06:24:05 +0000 (06:24 +0000)]
IndVarSimplify: Avoid UB from binding a reference to a null pointer

Calling operator* on a WeakVH whose Value is null hits undefined
behaviour, since we bind the value to a reference. Instead, go through
`operator Value*` so that we work with the pointer itself.

Found by ubsan.

llvm-svn: 240214

9 years agoReformat.
NAKAMURA Takumi [Sat, 20 Jun 2015 06:22:04 +0000 (06:22 +0000)]
Reformat.

llvm-svn: 240213

9 years agoRevert r240040, "[BranchFolding] Replace custom MachineInstr with MachineInstrExpress...
NAKAMURA Takumi [Sat, 20 Jun 2015 06:21:48 +0000 (06:21 +0000)]
Revert r240040, "[BranchFolding] Replace custom MachineInstr with MachineInstrExpressionTrait"

It caused different emission between stage2 and stage3. Investigating.

llvm-svn: 240212

9 years agoASTContext.h: Fix utf8 chars in comments.
NAKAMURA Takumi [Sat, 20 Jun 2015 04:20:23 +0000 (04:20 +0000)]
ASTContext.h: Fix utf8 chars in comments.

llvm-svn: 240211

9 years agoTargetInstrInfo.h: Fix r240192. [-Wdocumentation]
NAKAMURA Takumi [Sat, 20 Jun 2015 03:53:18 +0000 (03:53 +0000)]
TargetInstrInfo.h: Fix r240192. [-Wdocumentation]

llvm-svn: 240210