oota-llvm.git
6 years ago[llvm-profdata] Change instr prof counter overflow to saturate rather than discard
Nathan Slingerland [Wed, 2 Dec 2015 18:19:24 +0000 (18:19 +0000)]
[llvm-profdata] Change instr prof counter overflow to saturate rather than discard

Summary: This changes overflow handling during instrumentation profile merge. Rathar than throwing away records that would result in counter overflow, merged counts are instead clamped to the maximum representable value. A warning about counter overflow is still surfaced to the user as before.

Reviewers: dnovillo, davidxl, silvas

Subscribers: llvm-commits

Differential Revision: http://reviews.llvm.org/D14893

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@254525 91177308-0d34-0410-b5e6-96231b3b80d8

6 years agoAArch64: use ldxp/stxp pair to implement 128-bit atomic loads.
Tim Northover [Wed, 2 Dec 2015 18:12:57 +0000 (18:12 +0000)]
AArch64: use ldxp/stxp pair to implement 128-bit atomic loads.

The ARM ARM is clear that 128-bit loads are only guaranteed to have been atomic
if there has been a corresponding successful stxp. It's less clear for AArch32, so
I'm leaving that alone for now.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@254524 91177308-0d34-0410-b5e6-96231b3b80d8

6 years ago[WebAssembly] Fix comments to say "LIFO" instead of "FIFO" when describing a stack.
Dan Gohman [Wed, 2 Dec 2015 18:08:49 +0000 (18:08 +0000)]
[WebAssembly] Fix comments to say "LIFO" instead of "FIFO" when describing a stack.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@254523 91177308-0d34-0410-b5e6-96231b3b80d8

6 years agoAMDGPU/SI: Don't emit group segment global variables
Tom Stellard [Wed, 2 Dec 2015 17:00:42 +0000 (17:00 +0000)]
AMDGPU/SI: Don't emit group segment global variables

Summary: Only global or readonly segment variables should appear in object files.

Reviewers: arsenm

Subscribers: arsenm, llvm-commits

Differential Revision: http://reviews.llvm.org/D15111

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@254519 91177308-0d34-0410-b5e6-96231b3b80d8

6 years agoDo (A == C1 || A == C2) -> (A & ~(C1 ^ C2)) == C1 rather than (A == C1 || A == C2...
David Majnemer [Wed, 2 Dec 2015 16:15:07 +0000 (16:15 +0000)]
Do (A == C1 || A == C2) -> (A & ~(C1 ^ C2)) == C1 rather than (A == C1 || A == C2) -> (A | (C1 ^ C2)) == C2 when C1 ^ C2 is a power of 2.

Differential Revision: http://reviews.llvm.org/D14223

Patch by Amaury SECHET!

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@254518 91177308-0d34-0410-b5e6-96231b3b80d8

6 years agoAdd an interesting case we already get right.
Rafael Espindola [Wed, 2 Dec 2015 15:02:43 +0000 (15:02 +0000)]
Add an interesting case we already get right.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@254514 91177308-0d34-0410-b5e6-96231b3b80d8

6 years agoRollback r254508 and r254511 to fix buildbots
Andy Gibbs [Wed, 2 Dec 2015 14:36:48 +0000 (14:36 +0000)]
Rollback r254508 and r254511 to fix buildbots

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@254513 91177308-0d34-0410-b5e6-96231b3b80d8

6 years agoBy intel spec
Michael Zuckerman [Wed, 2 Dec 2015 14:34:34 +0000 (14:34 +0000)]
By intel spec

|9B DD /7| FSTSW m2byte| Valid Valid Store FPU status word at m2byteafter checking for pending unmasked floating-point exceptions.|
|9B DF E0| FSTSW AX| Valid Valid Store FPU status word in AX register after checking for pending unmasked floating-point exceptions.|
|DD /7 |FNSTSW *m2byte| Valid Valid Store FPU status word at m2bytewithout checking for pending unmasked floating-point exceptions.|
|DF E0 |FNSTSW *AX| Valid Valid Store FPU status word in AX register without checking for pending unmasked floating-point exceptions|

m2byte is word register, and therefor instruction operand need to be change from f32mem to i16mem.

Differential Revision: http://reviews.llvm.org/D14953

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@254512 91177308-0d34-0410-b5e6-96231b3b80d8

6 years agoFix buildbots broken by r254508
Andy Gibbs [Wed, 2 Dec 2015 14:22:18 +0000 (14:22 +0000)]
Fix buildbots broken by r254508

g++ 4.7 does not allow an inline defaulted virtual destructor to be overridden,
giving the error "looser throw specifier for ... overridding ~SCEVPredicate()
noexcept (true)" (see https://gcc.gnu.org/bugzilla/show_bug.cgi?id=53613).

The work-around given in the bug report above has been utilised here.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@254511 91177308-0d34-0410-b5e6-96231b3b80d8

6 years agoFix class SCEVPredicate has virtual functions and accessible non-virtual destructor
Andy Gibbs [Wed, 2 Dec 2015 13:41:24 +0000 (13:41 +0000)]
Fix class SCEVPredicate has virtual functions and accessible non-virtual destructor

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@254508 91177308-0d34-0410-b5e6-96231b3b80d8

6 years ago[AArch64]: Add support for Cortex-A35
Christof Douma [Wed, 2 Dec 2015 11:53:44 +0000 (11:53 +0000)]
[AArch64]: Add support for Cortex-A35

Adds support for the new Cortex-A35 ARMv8-A core.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@254503 91177308-0d34-0410-b5e6-96231b3b80d8

6 years agoPatch to fix a crash in the PowerPC back end due to ISD::ROTL and ISD::ROTR
Nemanja Ivanovic [Wed, 2 Dec 2015 10:36:24 +0000 (10:36 +0000)]
Patch to fix a crash in the PowerPC back end due to ISD::ROTL and ISD::ROTR
not being expanded. Test case included.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@254501 91177308-0d34-0410-b5e6-96231b3b80d8

6 years ago[mips][microMIPS] Implement PREPEND, RADDU.W.QB, RDDSP, REPL.PH, REPL.QB, REPLV.PH...
Hrvoje Varga [Wed, 2 Dec 2015 09:31:24 +0000 (09:31 +0000)]
[mips][microMIPS] Implement PREPEND, RADDU.W.QB, RDDSP, REPL.PH, REPL.QB, REPLV.PH, REPLV.QB and MTHLIP instructions
Differential Revision: http://reviews.llvm.org/D14527

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@254496 91177308-0d34-0410-b5e6-96231b3b80d8

6 years ago[X86][FMA] Optimize FNEG(FMUL) Patterns
Simon Pilgrim [Wed, 2 Dec 2015 09:07:55 +0000 (09:07 +0000)]
[X86][FMA] Optimize FNEG(FMUL) Patterns

On FMA targets, we can avoid having to load a constant to negate a float/double multiply by instead using a FNMSUB (-(X*Y)-0)

Fix for PR24366

Differential Revision: http://reviews.llvm.org/D14909

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@254495 91177308-0d34-0410-b5e6-96231b3b80d8

6 years agoAVX-512: Updated cost of FP/SINT/UINT conversion operations
Elena Demikhovsky [Wed, 2 Dec 2015 08:59:47 +0000 (08:59 +0000)]
AVX-512: Updated cost of FP/SINT/UINT conversion operations

I checked and updated the cost of AVX-512 conversion operations. Added cost of conversion operations in DQ mode.
Conversion of illegal types that requires vector split is not calculated right now (like for other X86 targets).

Differential Revision: http://reviews.llvm.org/D15074

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@254494 91177308-0d34-0410-b5e6-96231b3b80d8

6 years ago[X86][AVX512] add comi with Sae
Asaf Badouh [Wed, 2 Dec 2015 08:17:51 +0000 (08:17 +0000)]
[X86][AVX512] add comi with Sae
add builtin_ia32_vcomisd and builtin_ia32_vcomisd

Differential Revision: http://reviews.llvm.org/D14331

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@254493 91177308-0d34-0410-b5e6-96231b3b80d8

6 years ago[llvm-dwp] Don't rely on implicit move assignment operator (MSVC won't synthesize...
David Blaikie [Wed, 2 Dec 2015 07:09:26 +0000 (07:09 +0000)]
[llvm-dwp] Don't rely on implicit move assignment operator (MSVC won't synthesize one)

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@254492 91177308-0d34-0410-b5e6-96231b3b80d8

6 years ago[AttributeSet] Overload AttributeSet::addAttribute to reduce compile
Akira Hatanaka [Wed, 2 Dec 2015 06:58:49 +0000 (06:58 +0000)]
[AttributeSet] Overload AttributeSet::addAttribute to reduce compile
time.

The new overloaded function is used when an attribute is added to a
large number of slots of an AttributeSet (for example, to function
parameters). This is much faster than calling AttributeSet::addAttribute
once per slot, because AttributeSet::getImpl (which calls
FoldingSet::FIndNodeOrInsertPos) is called only once per function
instead of once per slot.

With this commit, clang compiles a file which used to take over 22
minutes in just 13 seconds.

rdar://problem/23581000

Differential Revision: http://reviews.llvm.org/D15085

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@254491 91177308-0d34-0410-b5e6-96231b3b80d8

6 years ago[X86] Change getZeroVector to take an MVT instead of EVT. One minor change needed...
Craig Topper [Wed, 2 Dec 2015 06:39:19 +0000 (06:39 +0000)]
[X86] Change getZeroVector to take an MVT instead of EVT. One minor change needed to only try to perform 256-it shuffle combines on legal vector types.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@254490 91177308-0d34-0410-b5e6-96231b3b80d8

6 years ago[llvm-dwp] Emit a rather fictional debug_cu_index
David Blaikie [Wed, 2 Dec 2015 06:21:34 +0000 (06:21 +0000)]
[llvm-dwp] Emit a rather fictional debug_cu_index

This is very rudimentary support for debug_cu_index, but it is enough to
allow llvm-dwarfdump to find the offsets for  contributions and
correctly dump debug_info.

It will need to actually find the real signature of the unit and build
the real hash table with the right number of buckets, as per the DWP
specification.

It will also need to be expanded to cover the tu_index as well.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@254489 91177308-0d34-0410-b5e6-96231b3b80d8

6 years agoDebugInfo\DWARF: Privatize some accidentally public members
David Blaikie [Wed, 2 Dec 2015 06:21:28 +0000 (06:21 +0000)]
DebugInfo\DWARF: Privatize some accidentally public members

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@254488 91177308-0d34-0410-b5e6-96231b3b80d8

6 years ago[X86] Fix weird identation. NFC
Craig Topper [Wed, 2 Dec 2015 05:24:38 +0000 (05:24 +0000)]
[X86] Fix weird identation. NFC

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@254487 91177308-0d34-0410-b5e6-96231b3b80d8

6 years agoChange ModuleLinker to take a set of GlobalValues to import instead of a single one
Mehdi Amini [Wed, 2 Dec 2015 04:34:28 +0000 (04:34 +0000)]
Change ModuleLinker to take a set of GlobalValues to import instead of a single one

For efficiency reason, when importing multiple functions for the same Module,
we can avoid reparsing it every time.

Differential Revision: http://reviews.llvm.org/D15102

From: Mehdi Amini <mehdi.amini@apple.com>

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@254486 91177308-0d34-0410-b5e6-96231b3b80d8

6 years ago[libFuzzer] add a test that is built with -fsanitize-coverage=trace-bb
Kostya Serebryany [Wed, 2 Dec 2015 02:49:37 +0000 (02:49 +0000)]
[libFuzzer] add a test that is built with -fsanitize-coverage=trace-bb

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@254484 91177308-0d34-0410-b5e6-96231b3b80d8

6 years ago[sanitizer coverage] when adding a bb trace instrumentation, do it instead, not in...
Kostya Serebryany [Wed, 2 Dec 2015 02:37:13 +0000 (02:37 +0000)]
[sanitizer coverage] when adding a bb trace instrumentation, do it instead, not in addition to, regular coverage. Do the regular coverage in the run-time instead

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@254482 91177308-0d34-0410-b5e6-96231b3b80d8

6 years ago[X86] Fix a think-o when checking if the eflags needs to be preserved.
Quentin Colombet [Wed, 2 Dec 2015 02:07:00 +0000 (02:07 +0000)]
[X86] Fix a think-o when checking if the eflags needs to be preserved.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@254480 91177308-0d34-0410-b5e6-96231b3b80d8

6 years agoModify FunctionImport to take a callback to load modules
Mehdi Amini [Wed, 2 Dec 2015 02:00:29 +0000 (02:00 +0000)]
Modify FunctionImport to take a callback to load modules

When linking static archive, there is no individual module files to
load. Instead they can be mmap'ed and could be initialized from a
buffer directly. The callback provide flexibility to override the
scheme for loading module from the summary.

Differential Revision: http://reviews.llvm.org/D15101

From: Mehdi Amini <mehdi.amini@apple.com>

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@254479 91177308-0d34-0410-b5e6-96231b3b80d8

6 years ago[X86] Make sure the prologue does not clobber EFLAGS when it lives accross it.
Quentin Colombet [Wed, 2 Dec 2015 01:22:54 +0000 (01:22 +0000)]
[X86] Make sure the prologue does not clobber EFLAGS when it lives accross it.

This is a superset of the fix done in r254448.

This fixes PR25607.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@254478 91177308-0d34-0410-b5e6-96231b3b80d8

6 years agoAArch64: fix 128-bit shifts
Tim Northover [Wed, 2 Dec 2015 00:33:54 +0000 (00:33 +0000)]
AArch64: fix 128-bit shifts

We mustn't introduce a shift of exactly 64-bits for any inputs, since that's an
UNDEF value (and worse, it's not what you want with the natural Arch64
implementation).

The generated code is pretty horrific, but I couldn't come up with an obviously
better alternative (if the amount is constant EXTR could help). Turns out
128-bit shifts are just nasty.

rdar://22491037

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@254475 91177308-0d34-0410-b5e6-96231b3b80d8

6 years agoUse default member initializers.
Rafael Espindola [Tue, 1 Dec 2015 23:06:26 +0000 (23:06 +0000)]
Use default member initializers.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@254473 91177308-0d34-0410-b5e6-96231b3b80d8

6 years agoDefine member operator delete
Xinliang David Li [Tue, 1 Dec 2015 23:05:27 +0000 (23:05 +0000)]
Define member operator delete

For the struct with trailing objects, define
a member operator delete. Without this, the program
will fail when -fsized-deallocation option is used
where the wrong size will be passed to the global
delete operator.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@254471 91177308-0d34-0410-b5e6-96231b3b80d8

6 years agoAMDGPU: Error on addrspacecasts that aren't actually implemented
Matt Arsenault [Tue, 1 Dec 2015 23:04:05 +0000 (23:04 +0000)]
AMDGPU: Error on addrspacecasts that aren't actually implemented

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@254469 91177308-0d34-0410-b5e6-96231b3b80d8

6 years agoAMDGPU: Implement isNoopAddrSpaceCast
Matt Arsenault [Tue, 1 Dec 2015 23:04:00 +0000 (23:04 +0000)]
AMDGPU: Implement isNoopAddrSpaceCast

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@254468 91177308-0d34-0410-b5e6-96231b3b80d8

6 years agoRemove unnecessary getter.
Rafael Espindola [Tue, 1 Dec 2015 23:01:51 +0000 (23:01 +0000)]
Remove unnecessary getter.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@254466 91177308-0d34-0410-b5e6-96231b3b80d8

6 years agoPass down the dst GV to linkGlobalValueBody. NFC.
Rafael Espindola [Tue, 1 Dec 2015 22:40:40 +0000 (22:40 +0000)]
Pass down the dst GV to linkGlobalValueBody. NFC.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@254465 91177308-0d34-0410-b5e6-96231b3b80d8

6 years agoFix a bug in IfConversion.cpp.
Cong Hou [Tue, 1 Dec 2015 21:50:20 +0000 (21:50 +0000)]
Fix a bug in IfConversion.cpp.

The bug is introduced in r254377 which failed some tests on ARM, where a new
probability is assigned to a successor but the provided BB may not be a
successor.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@254463 91177308-0d34-0410-b5e6-96231b3b80d8

6 years agoARM: Change ArchCheck field to uint64_t
Matthias Braun [Tue, 1 Dec 2015 21:48:52 +0000 (21:48 +0000)]
ARM: Change ArchCheck field to uint64_t

The values in this field are compared against getAvailableFeatures()
which returns an uint64_t. This was causing problems in an internal
branch.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@254462 91177308-0d34-0410-b5e6-96231b3b80d8

6 years agoAMDGPU: Disallow flat_scr in SI assembler
Matt Arsenault [Tue, 1 Dec 2015 20:31:08 +0000 (20:31 +0000)]
AMDGPU: Disallow flat_scr in SI assembler

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@254459 91177308-0d34-0410-b5e6-96231b3b80d8

6 years ago[PGO] Add support for reading multiple versions of indexed profile format profile...
Xinliang David Li [Tue, 1 Dec 2015 20:26:26 +0000 (20:26 +0000)]
[PGO] Add support for reading multiple versions of indexed profile format profile data

Profile readers using incompatible on-disk hash table format can now share the same
implementation and interfaces.

Differential Revision: http://reviews.llvm.org/D15100

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@254458 91177308-0d34-0410-b5e6-96231b3b80d8

6 years agoDelete unused includes.
Rafael Espindola [Tue, 1 Dec 2015 20:23:19 +0000 (20:23 +0000)]
Delete unused includes.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@254457 91177308-0d34-0410-b5e6-96231b3b80d8

6 years agoIR: Clean up some duplicated code in ConstantDataSequential creation. NFC
Justin Bogner [Tue, 1 Dec 2015 20:20:49 +0000 (20:20 +0000)]
IR: Clean up some duplicated code in ConstantDataSequential creation. NFC

ConstantDataArray::getImpl and ConstantDataVector::getImpl had a lot
of copy pasta in how they handled sequences of constants. Break that
out into a couple of simple functions.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@254456 91177308-0d34-0410-b5e6-96231b3b80d8

6 years agoclang-format LinkModules.cpp.
Rafael Espindola [Tue, 1 Dec 2015 20:11:43 +0000 (20:11 +0000)]
clang-format LinkModules.cpp.

Most of the file has been changed recently and was already clang-format
clean.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@254454 91177308-0d34-0410-b5e6-96231b3b80d8

6 years agouse range-based for loops; NFCI
Sanjay Patel [Tue, 1 Dec 2015 19:57:43 +0000 (19:57 +0000)]
use range-based for loops; NFCI

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@254453 91177308-0d34-0410-b5e6-96231b3b80d8

6 years agoAMDGPU: Optimize VOP2 operand legalization
Matt Arsenault [Tue, 1 Dec 2015 19:57:17 +0000 (19:57 +0000)]
AMDGPU: Optimize VOP2 operand legalization

Don't use commuteInstruction, and don't commute if
doing so will not improve legality. Skip the more
complex checks for literal operands and constant bus restrictions,
which are not a concern for VOP2 instructions because src1
does not accept SGPRs or constants and few implicitly
read vcc.

This gets called quite a few times and the
attempts at commuting are a significant fraction
of the time spent in SIFixSGPRCopies, so it's
somewhat worthwhile to optimize. With this patch and others
leading up to it, this reduces the compile time of SIFixSGPRCopies
on some of the LuxMark 2 kernels from ~8ms to ~5ms on my system.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@254452 91177308-0d34-0410-b5e6-96231b3b80d8

6 years agoUse references now that it is natural to do so.
Rafael Espindola [Tue, 1 Dec 2015 19:50:54 +0000 (19:50 +0000)]
Use references now that it is natural to do so.

The linker never takes ownership of a module or changes which module it
is refering to, making it natural to use references.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@254449 91177308-0d34-0410-b5e6-96231b3b80d8

6 years ago[X86] Make sure the prologue does not clobber EFLAGS when it lives accross it.
Quentin Colombet [Tue, 1 Dec 2015 19:49:31 +0000 (19:49 +0000)]
[X86] Make sure the prologue does not clobber EFLAGS when it lives accross it.

This fixes PR25629.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@254448 91177308-0d34-0410-b5e6-96231b3b80d8

6 years agoUse nullptr (NFC)
Xinliang David Li [Tue, 1 Dec 2015 19:47:32 +0000 (19:47 +0000)]
Use nullptr (NFC)

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@254447 91177308-0d34-0410-b5e6-96231b3b80d8

6 years agodon't repeat function/variable names in comments; NFC
Sanjay Patel [Tue, 1 Dec 2015 19:32:35 +0000 (19:32 +0000)]
don't repeat function/variable names in comments; NFC

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@254445 91177308-0d34-0410-b5e6-96231b3b80d8

6 years agoFix Thumb1 epilogue generation
Artyom Skrobov [Tue, 1 Dec 2015 19:25:11 +0000 (19:25 +0000)]
Fix Thumb1 epilogue generation

Summary:
This had been broken for a very long time, but nobody noticed until
D14357 enabled shrink-wrapping by default.

Reviewers: jroelofs, qcolombet

Subscribers: tyomitch, llvm-commits, rengolin

Differential Revision: http://reviews.llvm.org/D14986

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@254444 91177308-0d34-0410-b5e6-96231b3b80d8

6 years agofix typo; NFC
Sanjay Patel [Tue, 1 Dec 2015 19:19:18 +0000 (19:19 +0000)]
fix typo; NFC

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@254442 91177308-0d34-0410-b5e6-96231b3b80d8

6 years ago[llvm-dwp] Deduplicate strings in the debug_str.dwo section
David Blaikie [Tue, 1 Dec 2015 19:17:58 +0000 (19:17 +0000)]
[llvm-dwp] Deduplicate strings in the debug_str.dwo section

Also, ensure that references to those strings in debug_str_offsets.dwo
correctly refer to the deduplicated strings.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@254441 91177308-0d34-0410-b5e6-96231b3b80d8

6 years ago[AArch64] Fix a corner case in BitFeild select
Weiming Zhao [Tue, 1 Dec 2015 19:17:49 +0000 (19:17 +0000)]
[AArch64] Fix a corner case in BitFeild select

Summary:
When not useful bits, BitWidth becomes 0 and APInt will not be happy.

See https://llvm.org/bugs/show_bug.cgi?id=25571

We can just mark the operand as IMPLICIT_DEF is none bits of it is used.

Reviewers: t.p.northover, jmolloy

Subscribers: gberry, jmolloy, mgrang, aemerson, llvm-commits, rengolin

Differential Revision: http://reviews.llvm.org/D14803

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@254440 91177308-0d34-0410-b5e6-96231b3b80d8

6 years agoAMDGPU: Report extractelement as free in cost model
Matt Arsenault [Tue, 1 Dec 2015 19:08:39 +0000 (19:08 +0000)]
AMDGPU: Report extractelement as free in cost model

The cost for scalarized operations is computed as N * (scalar operation
cost + 1 extractelement + 1 insertelement). This partially fixes
inflating the cost of scalarized operations since every operation is
scalarized and free. I don't think we want any cost asociated with
scalarization, but for now insertelement is still counted. I'm not sure
if we should pretend that insertelement is also free, or add a way
to compute a custom scalarization cost.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@254438 91177308-0d34-0410-b5e6-96231b3b80d8

6 years ago[Verifier] Improve error for cross-module refs
Keno Fischer [Tue, 1 Dec 2015 19:06:36 +0000 (19:06 +0000)]
[Verifier] Improve error for cross-module refs

By including the module name in the error message.
This makes the error message much more useful and
saves a trip to the debugger.

Reviewers: dexonsmith

Subscribers: dexonsmith, llvm-commits

Differential Revision: http://reviews.llvm.org/D14473

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@254437 91177308-0d34-0410-b5e6-96231b3b80d8

6 years agoDelete dead code.
Rafael Espindola [Tue, 1 Dec 2015 18:50:35 +0000 (18:50 +0000)]
Delete dead code.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@254436 91177308-0d34-0410-b5e6-96231b3b80d8

6 years agoUse a forwarding constructor instead of an init method.
Rafael Espindola [Tue, 1 Dec 2015 18:46:19 +0000 (18:46 +0000)]
Use a forwarding constructor instead of an init method.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@254435 91177308-0d34-0410-b5e6-96231b3b80d8

6 years agoDelete the setModule method from the Linker.
Rafael Espindola [Tue, 1 Dec 2015 18:41:30 +0000 (18:41 +0000)]
Delete the setModule method from the Linker.

It was only used from LTO for a debug feature, and LTO can just create
another linker.

It is pretty odd to have a method to reset the module in the middle of a
link. It would make IdentifiedStructTypes inconsistent with the Module
for example.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@254434 91177308-0d34-0410-b5e6-96231b3b80d8

6 years ago[llvm-dwp] Correctly update debug_str_offsets.dwo when linking dwo files
David Blaikie [Tue, 1 Dec 2015 18:07:07 +0000 (18:07 +0000)]
[llvm-dwp] Correctly update debug_str_offsets.dwo when linking dwo files

This doesn't deduplicate strings in the debug_str section, nor does it
properly wire up the index so that debug_info can /find/ these strings,
but it does correct the str_offsets specifically.

Follow up patches to address those related/next issues.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@254431 91177308-0d34-0410-b5e6-96231b3b80d8

6 years agoAMDGPU/SI: Remove REGISTER_STORE/REGISTER_LOAD code which is now dead
Tom Stellard [Tue, 1 Dec 2015 17:45:22 +0000 (17:45 +0000)]
AMDGPU/SI: Remove REGISTER_STORE/REGISTER_LOAD code which is now dead

Reviewers: arsenm

Subscribers: arsenm, llvm-commits

Differential Revision: http://reviews.llvm.org/D15050

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@254427 91177308-0d34-0410-b5e6-96231b3b80d8

6 years agoAMDGPU: Use the default strings for data emission directives
Tom Stellard [Tue, 1 Dec 2015 17:45:17 +0000 (17:45 +0000)]
AMDGPU: Use the default strings for data emission directives

Summary:
This makes the assembly output look nicer and there is no reason to
have custom strings for these.

Reviewers: arsenm

Subscribers: arsenm, llvm-commits

Differential Revision: http://reviews.llvm.org/D14671

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@254426 91177308-0d34-0410-b5e6-96231b3b80d8

6 years ago[x86] add a convenience method to check for FMA capability; NFCI
Sanjay Patel [Tue, 1 Dec 2015 17:27:55 +0000 (17:27 +0000)]
[x86] add a convenience method to check for FMA capability; NFCI

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@254425 91177308-0d34-0410-b5e6-96231b3b80d8

6 years agoMake appending var linking less of a special case.
Rafael Espindola [Tue, 1 Dec 2015 17:17:04 +0000 (17:17 +0000)]
Make appending var linking less of a special case.

It has to be a bit special because:
* materializeInitFor is not really supposed to call replaceAllUsesWith.
  The caller has a plain variable with Dst and expects just the
  initializer to be set, not for it to be removed.
* Calling mutateType as we used to do before gets some type
  inconsistency which breaks the bitcode writer.
* If linkAppendingVarProto create a dest decl with the correct type to
  avoid the above problems, it needs to put the original dst init in
  some side table for materializeInitFor to use.

In the end the simplest solution seems to be to just have
linkAppendingVarProto do all the work and set ValueMap[SrcGV to avoid
recursion.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@254424 91177308-0d34-0410-b5e6-96231b3b80d8

6 years ago[ThinLTO] Wrap dbgs() output in DEBUG macro
Teresa Johnson [Tue, 1 Dec 2015 17:12:10 +0000 (17:12 +0000)]
[ThinLTO] Wrap dbgs() output in DEBUG macro

Missed in a couple places.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@254422 91177308-0d34-0410-b5e6-96231b3b80d8

6 years ago[ThinLTO] Remove stale comment (NFC)
Teresa Johnson [Tue, 1 Dec 2015 16:45:23 +0000 (16:45 +0000)]
[ThinLTO] Remove stale comment (NFC)

Stale as of r254036 which added basic profitability check.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@254421 91177308-0d34-0410-b5e6-96231b3b80d8

6 years agoSimplify test. NFC.
Rafael Espindola [Tue, 1 Dec 2015 15:46:46 +0000 (15:46 +0000)]
Simplify test. NFC.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@254419 91177308-0d34-0410-b5e6-96231b3b80d8

6 years agoBring r254336 back:
Rafael Espindola [Tue, 1 Dec 2015 15:19:48 +0000 (15:19 +0000)]
Bring r254336 back:

The difference is that now we don't error on out-of-comdat access to
internal global values. We copy them instead. This seems to match the
expectation of COFF linkers (see pr25686).

Original message:

    Start deciding earlier what to link.

    A traditional linker is roughly split in symbol resolution and
"copying
    stuff".

    The two tasks are badly mixed in lib/Linker.

    This starts splitting them apart.

    With this patch there are no direct call to linkGlobalValueBody or
    linkGlobalValueProto. Everything is linked via WapValue.

    This also includes a few fixes:
    * A GV goes undefined if the comdat is dropped (comdat11.ll).
    * We error if an internal GV goes undefined (comdat13.ll).
    * We don't link an unused comdat.

    The first two match the behavior of an ELF linker. The second one is
    equivalent to running globaldce on the input.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@254418 91177308-0d34-0410-b5e6-96231b3b80d8

6 years ago[LIR] Push check into helper function. NFC.
Chad Rosier [Tue, 1 Dec 2015 14:26:35 +0000 (14:26 +0000)]
[LIR] Push check into helper function. NFC.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@254416 91177308-0d34-0410-b5e6-96231b3b80d8

6 years agoFix "WARNING: Title underline too short." introduced by r254404.
Yury Gribov [Tue, 1 Dec 2015 13:24:48 +0000 (13:24 +0000)]
Fix "WARNING: Title underline too short." introduced by r254404.

Patch by Max Ostapenko.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@254413 91177308-0d34-0410-b5e6-96231b3b80d8

6 years agoAVX-512: fixed asm string of vsqrtss
Elena Demikhovsky [Tue, 1 Dec 2015 12:43:46 +0000 (12:43 +0000)]
AVX-512: fixed asm string of vsqrtss

(vvsqrtss was generated before)

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@254411 91177308-0d34-0410-b5e6-96231b3b80d8

6 years agoAVX-512: regenerated test for avx512 arithmetics, NFC
Elena Demikhovsky [Tue, 1 Dec 2015 12:35:03 +0000 (12:35 +0000)]
AVX-512: regenerated test for avx512 arithmetics, NFC

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@254410 91177308-0d34-0410-b5e6-96231b3b80d8

6 years agoFixed a failure in getSpaltValue()
Elena Demikhovsky [Tue, 1 Dec 2015 12:30:40 +0000 (12:30 +0000)]
Fixed a failure in getSpaltValue()

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@254409 91177308-0d34-0410-b5e6-96231b3b80d8

6 years agoFixed a failure in cost calculation for vector GEP
Elena Demikhovsky [Tue, 1 Dec 2015 12:08:36 +0000 (12:08 +0000)]
Fixed a failure in cost calculation for vector GEP

Cost calculation for vector GEP failed with due to invalid cast to GEP index operand.
The bug is fixed, added a test.

http://reviews.llvm.org/D14976

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@254408 91177308-0d34-0410-b5e6-96231b3b80d8

6 years ago[mips][microMIPS] Implement RECIP.fmt, RINT.fmt, ROUND.L.fmt, ROUND.W.fmt, SEL.fmt...
Hrvoje Varga [Tue, 1 Dec 2015 11:59:21 +0000 (11:59 +0000)]
[mips][microMIPS] Implement RECIP.fmt, RINT.fmt, ROUND.L.fmt, ROUND.W.fmt, SEL.fmt, SELEQZ.fmt, SELNEQZ.fmt and CLASS.fmt
Differential Revision: http://reviews.llvm.org/D13885

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@254405 91177308-0d34-0410-b5e6-96231b3b80d8

6 years agoIntroduce new @llvm.get.dynamic.area.offset.i{32, 64} intrinsics.
Yury Gribov [Tue, 1 Dec 2015 11:40:55 +0000 (11:40 +0000)]
Introduce new @llvm.get.dynamic.area.offset.i{32, 64} intrinsics.

The @llvm.get.dynamic.area.offset.* intrinsic family is used to get the offset
from native stack pointer to the address of the most recent dynamic alloca on
the caller's stack. These intrinsics are intendend for use in combination with
@llvm.stacksave and @llvm.restore to get a pointer to the most recent dynamic
alloca. This is useful, for example, for AddressSanitizer's stack unpoisoning
routines.

Patch by Max Ostapenko.

Differential Revision: http://reviews.llvm.org/D14983

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@254404 91177308-0d34-0410-b5e6-96231b3b80d8

6 years agoAllow known and unknown probabilities coexist in MBB's successor list.
Cong Hou [Tue, 1 Dec 2015 11:05:39 +0000 (11:05 +0000)]
Allow known and unknown probabilities coexist in MBB's successor list.

Previously it is not allowed for each MBB to have successors with both known and
unknown probabilities. However, this may be too strict as at this stage we could
not always guarantee that. It is better to remove this restriction now, and I
will work on validating MBB's successors' probabilities first (for example,
check if the sum is approximate one).

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@254402 91177308-0d34-0410-b5e6-96231b3b80d8

6 years ago[AArch64] Add ARMv8.2-A Statistical Profiling Extension
Oliver Stannard [Tue, 1 Dec 2015 10:48:51 +0000 (10:48 +0000)]
[AArch64] Add ARMv8.2-A Statistical Profiling Extension

The Statistical Profiling Extension is an optional extension to
ARMv8.2-A. Since it is an optional extension, I have added the
FeatureSPE subtarget feature to control it. The assembler-visible parts
of this extension are the new "psb csync" instruction, which is
equivalent to "hint #17", and a number of system registers.

Differential Revision: http://reviews.llvm.org/D15021

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@254401 91177308-0d34-0410-b5e6-96231b3b80d8

6 years ago[ARM] Add ARMv8.2-A to TargetParser
Oliver Stannard [Tue, 1 Dec 2015 10:33:56 +0000 (10:33 +0000)]
[ARM] Add ARMv8.2-A to TargetParser

Add ARMv8.2-A to TargetParser, so that it can be used by the clang
command-line options and the .arch directive.

Most testing of this will be done in clang, checking that the
command-line options that this enables work.

Differential Revision: http://reviews.llvm.org/D15037

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@254400 91177308-0d34-0410-b5e6-96231b3b80d8

6 years ago[ARM] Add subtarget features for ARMv8.2-A
Oliver Stannard [Tue, 1 Dec 2015 10:23:06 +0000 (10:23 +0000)]
[ARM] Add subtarget features for ARMv8.2-A

This adds subtarget features for ARMv8.2-A, which builds on (and
requires the features from) ARMv8.1-A. Most assembler-visible features
of ARMv8.2-A are system instructions, and are all required parts of the
architecture, so just depend on the HasV8_2aOps subtarget feature.
There is also one large, optional feature, which adds 16-bit floating
point versions of all existing floating-point instructions (VFP and
SIMD), this is represented by the FeatureFullFP16 subtarget feature.

Differential Revision: http://reviews.llvm.org/D15036

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@254399 91177308-0d34-0410-b5e6-96231b3b80d8

6 years agollvm/test/DebugInfo/X86/safestack-byval.ll: Give an explicit triple for now. It crash...
NAKAMURA Takumi [Tue, 1 Dec 2015 10:07:41 +0000 (10:07 +0000)]
llvm/test/DebugInfo/X86/safestack-byval.ll: Give an explicit triple for now. It crashes for targeting *-win32.

Also revert r254375 and r254361.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@254397 91177308-0d34-0410-b5e6-96231b3b80d8

6 years agoMove llvm/test/DebugInfo/Generic/safestack-byval.ll to X86. It depends on x86-64.
NAKAMURA Takumi [Tue, 1 Dec 2015 10:07:37 +0000 (10:07 +0000)]
Move llvm/test/DebugInfo/Generic/safestack-byval.ll to X86. It depends on x86-64.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@254396 91177308-0d34-0410-b5e6-96231b3b80d8

6 years agoIntroduce a range version of std::find, and use in SCEV
Sanjoy Das [Tue, 1 Dec 2015 07:49:27 +0000 (07:49 +0000)]
Introduce a range version of std::find, and use in SCEV

Reviewers: dblaikie, pcc

Subscribers: llvm-commits

Differential Revision: http://reviews.llvm.org/D15064

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@254391 91177308-0d34-0410-b5e6-96231b3b80d8

6 years agoIntroduce a range version of std::any_of, and use it in SCEV
Sanjoy Das [Tue, 1 Dec 2015 07:49:23 +0000 (07:49 +0000)]
Introduce a range version of std::any_of, and use it in SCEV

Reviewers: dblaikie, pcc

Subscribers: llvm-commits

Differential Revision: http://reviews.llvm.org/D15063

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@254390 91177308-0d34-0410-b5e6-96231b3b80d8

6 years ago[X86] Fix patterns for memory forms of FP FSUBR and FDIVR. They need to have memory...
Craig Topper [Tue, 1 Dec 2015 06:13:16 +0000 (06:13 +0000)]
[X86] Fix patterns for memory forms of FP FSUBR and FDIVR. They need to have memory on the left hand side of the fsub/fdiv operations in their patterns.

Not sure how to test this. I noticed by inspection in the isel tables where the same pattern tried to produce DIV and DIVR or SUB and SUBR.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@254388 91177308-0d34-0410-b5e6-96231b3b80d8

6 years ago[X86] Use range-based for loops. NFC
Craig Topper [Tue, 1 Dec 2015 06:13:15 +0000 (06:13 +0000)]
[X86] Use range-based for loops. NFC

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@254387 91177308-0d34-0410-b5e6-96231b3b80d8

6 years ago[X86] Use array_lengthof instead of calculating manually. Also change index types...
Craig Topper [Tue, 1 Dec 2015 06:13:13 +0000 (06:13 +0000)]
[X86] Use array_lengthof instead of calculating manually. Also change index types to size_t to match.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@254386 91177308-0d34-0410-b5e6-96231b3b80d8

6 years ago[Hexagon] Use std::begin() and std::end() instead of doing the same manually. NFC
Craig Topper [Tue, 1 Dec 2015 06:13:10 +0000 (06:13 +0000)]
[Hexagon] Use std::begin() and std::end() instead of doing the same manually. NFC

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@254385 91177308-0d34-0410-b5e6-96231b3b80d8

6 years ago[Hexagon] Use array_lengthof and const correct and type correct the array and array...
Craig Topper [Tue, 1 Dec 2015 06:13:08 +0000 (06:13 +0000)]
[Hexagon] Use array_lengthof and const correct and type correct the array and array size. NFC

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@254384 91177308-0d34-0410-b5e6-96231b3b80d8

6 years agoUse array_lengthof instead of manually calculating it. NFC
Craig Topper [Tue, 1 Dec 2015 06:13:06 +0000 (06:13 +0000)]
Use array_lengthof instead of manually calculating it. NFC

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@254383 91177308-0d34-0410-b5e6-96231b3b80d8

6 years ago[Hexagon] Use ArrayRef to avoid needing to calculate an array size. Interestingly...
Craig Topper [Tue, 1 Dec 2015 06:13:04 +0000 (06:13 +0000)]
[Hexagon] Use ArrayRef to avoid needing to calculate an array size. Interestingly the original code may have had a bug because it was passing the byte size of a uint16_t array instead of the number of entries.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@254382 91177308-0d34-0410-b5e6-96231b3b80d8

6 years ago[ARM] Use range-based for loops to avoid the need for calculating an array size that...
Craig Topper [Tue, 1 Dec 2015 06:13:01 +0000 (06:13 +0000)]
[ARM] Use range-based for loops to avoid the need for calculating an array size that I would have otherwise cconverted to array_lengthof. NFC

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@254381 91177308-0d34-0410-b5e6-96231b3b80d8

6 years agoUse array_lengthof instead of manually calculating it. NFC
Craig Topper [Tue, 1 Dec 2015 06:12:59 +0000 (06:12 +0000)]
Use array_lengthof instead of manually calculating it. NFC

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@254380 91177308-0d34-0410-b5e6-96231b3b80d8

6 years ago[Windows] Partially revert r254363 until I can test the right fix.
Davide Italiano [Tue, 1 Dec 2015 05:33:24 +0000 (05:33 +0000)]
[Windows] Partially revert r254363 until I can test the right fix.

Reported by:  David Blaikie

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@254378 91177308-0d34-0410-b5e6-96231b3b80d8

6 years agoReplace all weight-based interfaces in MBB with probability-based interfaces, and...
Cong Hou [Tue, 1 Dec 2015 05:29:22 +0000 (05:29 +0000)]
Replace all weight-based interfaces in MBB with probability-based interfaces, and update all uses of old interfaces.

(This is the second attempt to submit this patch. The first caused two assertion
 failures and was reverted. See https://llvm.org/bugs/show_bug.cgi?id=25687)

The patch in http://reviews.llvm.org/D13745 is broken into four parts:

1. New interfaces without functional changes (http://reviews.llvm.org/D13908).
2. Use new interfaces in SelectionDAG, while in other passes treat probabilities
as weights (http://reviews.llvm.org/D14361).
3. Use new interfaces in all other passes.
4. Remove old interfaces.

This patch is 3+4 above. In this patch, MBB won't provide weight-based
interfaces any more, which are totally replaced by probability-based ones.
The interface addSuccessor() is redesigned so that the default probability is
unknown. We allow unknown probabilities but don't allow using it together
with known probabilities in successor list. That is to say, we either have a
list of successors with all known probabilities, or all unknown
probabilities. In the latter case, we assume each successor has 1/N
probability where N is the number of successors. An assertion checks if the
user is attempting to add a successor with the disallowed mixed use as stated
above. This can help us catch many misuses.

All uses of weight-based interfaces are now updated to use probability-based
ones.

Differential revision: http://reviews.llvm.org/D14973

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@254377 91177308-0d34-0410-b5e6-96231b3b80d8

6 years ago[Hexagon] Disabling failing safestack test
Colin LeMahieu [Tue, 1 Dec 2015 04:56:25 +0000 (04:56 +0000)]
[Hexagon] Disabling failing safestack test

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@254375 91177308-0d34-0410-b5e6-96231b3b80d8

6 years agoRegisterPressure: If we do not collect dead defs the list must be empty
Matthias Braun [Tue, 1 Dec 2015 04:20:06 +0000 (04:20 +0000)]
RegisterPressure: If we do not collect dead defs the list must be empty

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@254372 91177308-0d34-0410-b5e6-96231b3b80d8

6 years agoRegisterPressure: Remove support for recede()/advance() at MBB boundaries
Matthias Braun [Tue, 1 Dec 2015 04:20:04 +0000 (04:20 +0000)]
RegisterPressure: Remove support for recede()/advance() at MBB boundaries

Nobody was checking the returnvalue of recede()/advance() so we can
simply replace this code with asserts.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@254371 91177308-0d34-0410-b5e6-96231b3b80d8

6 years agoRegisterPressure: There is no need to make getCurSlot() public
Matthias Braun [Tue, 1 Dec 2015 04:20:01 +0000 (04:20 +0000)]
RegisterPressure: There is no need to make getCurSlot() public

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@254370 91177308-0d34-0410-b5e6-96231b3b80d8

6 years agoRegisterPressure: There is no need to make discoverLive{In|Out} public
Matthias Braun [Tue, 1 Dec 2015 04:19:58 +0000 (04:19 +0000)]
RegisterPressure: There is no need to make discoverLive{In|Out} public

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@254369 91177308-0d34-0410-b5e6-96231b3b80d8

6 years agoRegisterPressure: Split RegisterOperands analysis code from result object; NFC
Matthias Braun [Tue, 1 Dec 2015 04:19:56 +0000 (04:19 +0000)]
RegisterPressure: Split RegisterOperands analysis code from result object; NFC

This is in preparation to expose the RegisterOperands class as
RegisterPressure API.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@254368 91177308-0d34-0410-b5e6-96231b3b80d8

6 years agoRevert r254348: "Replace all weight-based interfaces in MBB with probability-based...
Hans Wennborg [Tue, 1 Dec 2015 03:49:42 +0000 (03:49 +0000)]
Revert r254348: "Replace all weight-based interfaces in MBB with probability-based interfaces, and update all uses of old interfaces."

and the follow-up r254356: "Fix a bug in MachineBlockPlacement that may cause assertion failure during BranchProbability construction."

Asserts were firing in Chromium builds. See PR25687.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@254366 91177308-0d34-0410-b5e6-96231b3b80d8