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8 years ago[PM] Re-instate r279227 and r279228 with a fix to the way the templating
Chandler Carruth [Fri, 19 Aug 2016 18:36:06 +0000 (18:36 +0000)]
[PM] Re-instate r279227 and r279228 with a fix to the way the templating
was done to hopefully appease MSVC.

As an upside, this also implements the suggestion Sanjoy made in code
review, so two for one! =]

I'll be watching the bots to see if there are still issues.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@279295 91177308-0d34-0410-b5e6-96231b3b80d8

8 years agoGlobalISel: improve representation of G_SEQUENCE and G_EXTRACT
Tim Northover [Fri, 19 Aug 2016 18:32:14 +0000 (18:32 +0000)]
GlobalISel: improve representation of G_SEQUENCE and G_EXTRACT

First, make sure all types involved are represented, rather than being implicit
from the register width.

Second, canonicalize all types to scalar. These operations just act in bits and
don't care about vectors.

Also standardize spelling of Indices in the MachineIRBuilder (NFC here).

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@279294 91177308-0d34-0410-b5e6-96231b3b80d8

8 years ago[CostModel][X86] Added some AVX512 and 512-bit vector cost tests
Simon Pilgrim [Fri, 19 Aug 2016 18:24:10 +0000 (18:24 +0000)]
[CostModel][X86] Added some AVX512 and 512-bit vector cost tests

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@279291 91177308-0d34-0410-b5e6-96231b3b80d8

8 years agoRevert "IfConversion: Rescan diamonds."
Kyle Butt [Fri, 19 Aug 2016 18:17:06 +0000 (18:17 +0000)]
Revert "IfConversion: Rescan diamonds."

This reverts commit bfd62a4b4465dd21811bf615c3b04c30ddb09f7b.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@279289 91177308-0d34-0410-b5e6-96231b3b80d8

8 years agoRevert "CodeGen: If Convert blocks that would form a diamond when tail-merged."
Kyle Butt [Fri, 19 Aug 2016 18:17:04 +0000 (18:17 +0000)]
Revert "CodeGen: If Convert blocks that would form a diamond when tail-merged."

This reverts commit 0fda93481c4231c06b838ef476c0c404c51ff875.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@279288 91177308-0d34-0410-b5e6-96231b3b80d8

8 years agoGlobalISel: allow extractvalue to extract an aggregate.
Tim Northover [Fri, 19 Aug 2016 18:09:41 +0000 (18:09 +0000)]
GlobalISel: allow extractvalue to extract an aggregate.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@279287 91177308-0d34-0410-b5e6-96231b3b80d8

8 years ago[Hexagon] Fixes for new-value jump formation
Krzysztof Parzyszek [Fri, 19 Aug 2016 17:54:49 +0000 (17:54 +0000)]
[Hexagon] Fixes for new-value jump formation

- Recognize C2_cmpgtui, S2_tstbit_i, and S4_ntstbit_i.
- Avoid creating new-value instructions with both source operands equal.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@279286 91177308-0d34-0410-b5e6-96231b3b80d8

8 years agoGlobalISel: support translation of extractvalue instructions.
Tim Northover [Fri, 19 Aug 2016 17:47:05 +0000 (17:47 +0000)]
GlobalISel: support translation of extractvalue instructions.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@279285 91177308-0d34-0410-b5e6-96231b3b80d8

8 years ago[CostModel][X86] Add fdiv + frem cost tests
Simon Pilgrim [Fri, 19 Aug 2016 17:39:00 +0000 (17:39 +0000)]
[CostModel][X86] Add fdiv + frem cost tests

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@279283 91177308-0d34-0410-b5e6-96231b3b80d8

8 years ago[InstCombine] use local variables to reduce code in foldICmpShlConstant; NFC
Sanjay Patel [Fri, 19 Aug 2016 17:34:05 +0000 (17:34 +0000)]
[InstCombine] use local variables to reduce code in foldICmpShlConstant; NFC

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@279282 91177308-0d34-0410-b5e6-96231b3b80d8

8 years ago[Hexagon] Fix a few omissions in HexagonInstrInfo
Krzysztof Parzyszek [Fri, 19 Aug 2016 17:20:57 +0000 (17:20 +0000)]
[Hexagon] Fix a few omissions in HexagonInstrInfo

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@279280 91177308-0d34-0410-b5e6-96231b3b80d8

8 years ago[InstCombine] rename variables in foldICmpShlConstant(); NFC
Sanjay Patel [Fri, 19 Aug 2016 17:20:37 +0000 (17:20 +0000)]
[InstCombine] rename variables in foldICmpShlConstant(); NFC

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@279279 91177308-0d34-0410-b5e6-96231b3b80d8

8 years agoGlobalISel: support overflow arithmetic intrinsics.
Tim Northover [Fri, 19 Aug 2016 17:17:06 +0000 (17:17 +0000)]
GlobalISel: support overflow arithmetic intrinsics.

Unsigned addition and subtraction can reuse the instructions created to
legalize large width operations (i.e. both produce and consume a carry flag).
Signed operations and multiplies get a dedicated op-with-overflow instruction.

Once this is produced the two values are combined into a struct register (which
will almost always be merged with a corresponding G_EXTRACT as part of
legalization).

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@279278 91177308-0d34-0410-b5e6-96231b3b80d8

8 years agoRevert "[asan] Optimize store size in FunctionStackPoisoner::poisonRedZones"
Vitaly Buka [Fri, 19 Aug 2016 17:15:38 +0000 (17:15 +0000)]
Revert "[asan] Optimize store size in FunctionStackPoisoner::poisonRedZones"

This reverts commit r279178.

Speculative revert in hope to fix asan crash on arm.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@279277 91177308-0d34-0410-b5e6-96231b3b80d8

8 years agoRevert "[asan] Fix size of shadow incorrectly calculated in r279178"
Vitaly Buka [Fri, 19 Aug 2016 17:15:33 +0000 (17:15 +0000)]
Revert "[asan] Fix size of shadow incorrectly calculated in r279178"

This reverts commit r279222.

Speculative revert in hope to fix asan crash on arm.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@279276 91177308-0d34-0410-b5e6-96231b3b80d8

8 years ago[RuntimeDyld] Revert r279182 and 279201 -- they broke some ARM bots.
Lang Hames [Fri, 19 Aug 2016 17:06:39 +0000 (17:06 +0000)]
[RuntimeDyld] Revert r279182 and 279201 -- they broke some ARM bots.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@279275 91177308-0d34-0410-b5e6-96231b3b80d8

8 years ago[AliasSetTracker] Degrade AliasSetTracker when may-alias sets get too large.
Michael Kuperstein [Fri, 19 Aug 2016 17:05:22 +0000 (17:05 +0000)]
[AliasSetTracker] Degrade AliasSetTracker when may-alias sets get too large.

Repeated inserts into AliasSetTracker have quadratic behavior - inserting a
pointer into AST is linear, since it requires walking over all "may" alias
sets and running an alias check vs. every pointer in the set.

We can avoid this by tracking the total number of pointers in "may" sets,
and when that number exceeds a threshold, declare the tracker "saturated".
This lumps all pointers into a single "may" set that aliases every other
pointer.

(This is a stop-gap solution until we migrate to MemorySSA)

This fixes PR28832.
Differential Revision: https://reviews.llvm.org/D23432

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@279274 91177308-0d34-0410-b5e6-96231b3b80d8

8 years ago[X86][SSE] Generalised combining to VZEXT_MOVL to any vector size
Simon Pilgrim [Fri, 19 Aug 2016 17:02:00 +0000 (17:02 +0000)]
[X86][SSE] Generalised combining to VZEXT_MOVL to any vector size

This doesn't change tests codegen as we already combined to blend+zero which is what we lower VZEXT_MOVL to on SSE41+ targets, but it does put us in a better position when we improve shuffling for optsize.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@279273 91177308-0d34-0410-b5e6-96231b3b80d8

8 years ago[Hexagon] Enforce LLSC packetization rules
Krzysztof Parzyszek [Fri, 19 Aug 2016 16:57:05 +0000 (16:57 +0000)]
[Hexagon] Enforce LLSC packetization rules

Ensure that load locked and store conditional instructions are only
packetized with ALU32 instructions.

Patch by Ben Craig.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@279272 91177308-0d34-0410-b5e6-96231b3b80d8

8 years agoFix regression in InstCombine introduced by r278944
Reid Kleckner [Fri, 19 Aug 2016 16:53:18 +0000 (16:53 +0000)]
Fix regression in InstCombine introduced by r278944

The intended transform is:
  // Simplify icmp eq (or (ptrtoint P), (ptrtoint Q)), 0
  // -> and (icmp eq P, null), (icmp eq Q, null).

P and Q are both pointer types, but may have different types. We need
two calls to getNullValue() to make the icmps.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@279271 91177308-0d34-0410-b5e6-96231b3b80d8

8 years agoMachineScheduler: Make some GenericScheduler member variables protected
Tom Stellard [Fri, 19 Aug 2016 16:44:32 +0000 (16:44 +0000)]
MachineScheduler: Make some GenericScheduler member variables protected

Summary: We will need these in AMDGPU's new SchedStrategy implmentation.

Reviewers: MatzeB, atrick

Subscribers: llvm-commits, MatzeB

Differential Revision: https://reviews.llvm.org/D23679

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@279270 91177308-0d34-0410-b5e6-96231b3b80d8

8 years ago[Hexagon] Minor updates to register definitions
Krzysztof Parzyszek [Fri, 19 Aug 2016 16:40:19 +0000 (16:40 +0000)]
[Hexagon] Minor updates to register definitions

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@279269 91177308-0d34-0410-b5e6-96231b3b80d8

8 years ago[CloneFunction] Don't remove unrelated nodes from the CGSSC
David Majnemer [Fri, 19 Aug 2016 16:37:40 +0000 (16:37 +0000)]
[CloneFunction] Don't remove unrelated nodes from the CGSSC

CGSCC use a WeakVH to track call sites.  RAUW a call within a function
can result in that WeakVH getting confused about whether or not the call
site is still around.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@279268 91177308-0d34-0410-b5e6-96231b3b80d8

8 years ago[Hexagon] Fix incorrect generation of S4_subi_asl_ri
Krzysztof Parzyszek [Fri, 19 Aug 2016 16:35:05 +0000 (16:35 +0000)]
[Hexagon] Fix incorrect generation of S4_subi_asl_ri

Patch by Jyotsna Verma.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@279267 91177308-0d34-0410-b5e6-96231b3b80d8

8 years ago[InstCombine] use m_APInt to allow icmp (shl 1, Y), C folds for splat constant vectors
Sanjay Patel [Fri, 19 Aug 2016 16:12:16 +0000 (16:12 +0000)]
[InstCombine] use m_APInt to allow icmp (shl 1, Y), C folds for splat constant vectors

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@279266 91177308-0d34-0410-b5e6-96231b3b80d8

8 years ago[Hexagon] Add missing pattern for C4_cmplte
Krzysztof Parzyszek [Fri, 19 Aug 2016 16:11:33 +0000 (16:11 +0000)]
[Hexagon] Add missing pattern for C4_cmplte

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@279265 91177308-0d34-0410-b5e6-96231b3b80d8

8 years ago[InstCombine] use m_APInt to allow icmp X, C folds for splat constant vectors
Sanjay Patel [Fri, 19 Aug 2016 15:40:44 +0000 (15:40 +0000)]
[InstCombine] use m_APInt to allow icmp X, C folds for splat constant vectors

Of course, we really need to refactor and fix all of the cmp predicates,
but this one is interesting because without it, we later perform an
information-losing transform of icmp (shl 1, Y), C, and we can't recover
the better fold.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@279263 91177308-0d34-0410-b5e6-96231b3b80d8

8 years ago[LTO] Remove dead-code: collectUsedGlobalVariables has been moved to Thin and LTO...
Mehdi Amini [Fri, 19 Aug 2016 15:35:44 +0000 (15:35 +0000)]
[LTO] Remove dead-code: collectUsedGlobalVariables has been moved to Thin and LTO specifc path (NFC)

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@279261 91177308-0d34-0410-b5e6-96231b3b80d8

8 years ago[InstCombine] add tests for missing vector icmp folds
Sanjay Patel [Fri, 19 Aug 2016 15:27:28 +0000 (15:27 +0000)]
[InstCombine] add tests for missing vector icmp folds

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@279259 91177308-0d34-0410-b5e6-96231b3b80d8

8 years ago[InstCombine] add missing tests for basic icmp folds
Sanjay Patel [Fri, 19 Aug 2016 15:21:45 +0000 (15:21 +0000)]
[InstCombine] add missing tests for basic icmp folds

These are implicitly included as part of larger test cases, but they don't
exist stand-alone (and don't happen for vectors...).

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@279257 91177308-0d34-0410-b5e6-96231b3b80d8

8 years ago[Hexagon] Make p0 an explicit operand in VA1_clr* subinstructions, NFC
Krzysztof Parzyszek [Fri, 19 Aug 2016 15:17:19 +0000 (15:17 +0000)]
[Hexagon] Make p0 an explicit operand in VA1_clr* subinstructions, NFC

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@279255 91177308-0d34-0410-b5e6-96231b3b80d8

8 years ago[Hexagon] Add explicit default constructor for HexagonSelectionDAGInfo
Krzysztof Parzyszek [Fri, 19 Aug 2016 15:13:54 +0000 (15:13 +0000)]
[Hexagon] Add explicit default constructor for HexagonSelectionDAGInfo

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@279254 91177308-0d34-0410-b5e6-96231b3b80d8

8 years agoUnxfail passing tests on Hexagon
Krzysztof Parzyszek [Fri, 19 Aug 2016 15:07:58 +0000 (15:07 +0000)]
Unxfail passing tests on Hexagon

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@279252 91177308-0d34-0410-b5e6-96231b3b80d8

8 years ago[Hexagon] Allow tail-call optimization when mixing C and fast calling conv
Krzysztof Parzyszek [Fri, 19 Aug 2016 15:02:18 +0000 (15:02 +0000)]
[Hexagon] Allow tail-call optimization when mixing C and fast calling conv

Patch by Arnold Schwaighofer.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@279251 91177308-0d34-0410-b5e6-96231b3b80d8

8 years ago[Hexagon] Check for empty live interval
Krzysztof Parzyszek [Fri, 19 Aug 2016 14:29:43 +0000 (14:29 +0000)]
[Hexagon] Check for empty live interval

Patch by Brendon Cahoon.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@279249 91177308-0d34-0410-b5e6-96231b3b80d8

8 years ago[Hexagon] Consider zext/sext of a load to i32 to be free
Krzysztof Parzyszek [Fri, 19 Aug 2016 14:22:07 +0000 (14:22 +0000)]
[Hexagon] Consider zext/sext of a load to i32 to be free

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@279248 91177308-0d34-0410-b5e6-96231b3b80d8

8 years agoRevert r279242 - it's failing the tests
Anton Korobeynikov [Fri, 19 Aug 2016 14:18:34 +0000 (14:18 +0000)]
Revert r279242 - it's failing the tests

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@279247 91177308-0d34-0410-b5e6-96231b3b80d8

8 years ago[Hexagon] Handle J2_jumptpt and J2_jumpfpt instructions
Krzysztof Parzyszek [Fri, 19 Aug 2016 14:14:09 +0000 (14:14 +0000)]
[Hexagon] Handle J2_jumptpt and J2_jumpfpt instructions

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@279246 91177308-0d34-0410-b5e6-96231b3b80d8

8 years ago[Hexagon] Fix indentation, NFC
Krzysztof Parzyszek [Fri, 19 Aug 2016 14:12:51 +0000 (14:12 +0000)]
[Hexagon] Fix indentation, NFC

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@279245 91177308-0d34-0410-b5e6-96231b3b80d8

8 years ago[Hexagon] Remove unnecessary llvm::, NFC
Krzysztof Parzyszek [Fri, 19 Aug 2016 14:10:57 +0000 (14:10 +0000)]
[Hexagon] Remove unnecessary llvm::, NFC

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@279244 91177308-0d34-0410-b5e6-96231b3b80d8

8 years ago[Hexagon] Rename the HEXAGON_MC namespace to Hexagon_MC, NFC
Krzysztof Parzyszek [Fri, 19 Aug 2016 14:09:47 +0000 (14:09 +0000)]
[Hexagon] Rename the HEXAGON_MC namespace to Hexagon_MC, NFC

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@279243 91177308-0d34-0410-b5e6-96231b3b80d8

8 years agoFix PR27500: on MSP430 the branch destination offset is measured in words, not bytes.
Anton Korobeynikov [Fri, 19 Aug 2016 14:07:10 +0000 (14:07 +0000)]
Fix PR27500: on MSP430 the branch destination offset is measured in words, not bytes.
In addition, the branch instructions will have proper BB destinations, not offsets, like before.

Patch by Vadzim Dambrouski!

Differential Revision: https://reviews.llvm.org/D20162

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@279242 91177308-0d34-0410-b5e6-96231b3b80d8

8 years ago[Hexagon] Mark PS_jumpret as pseudo-instruction, expand it into J2_jumpr
Krzysztof Parzyszek [Fri, 19 Aug 2016 14:04:45 +0000 (14:04 +0000)]
[Hexagon] Mark PS_jumpret as pseudo-instruction, expand it into J2_jumpr

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@279241 91177308-0d34-0410-b5e6-96231b3b80d8

8 years ago[Hexagon] Improvements to handling and generation of FP instructions
Krzysztof Parzyszek [Fri, 19 Aug 2016 13:34:31 +0000 (13:34 +0000)]
[Hexagon] Improvements to handling and generation of FP instructions

Improved handling of fma, floating point min/max, additional load/store
instructions for floating point types.

Patch by Jyotsna Verma.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@279239 91177308-0d34-0410-b5e6-96231b3b80d8

8 years ago[LoopVectorize] Don't copy std::vector in for-range loop.
Benjamin Kramer [Fri, 19 Aug 2016 12:44:24 +0000 (12:44 +0000)]
[LoopVectorize] Don't copy std::vector in for-range loop.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@279233 91177308-0d34-0410-b5e6-96231b3b80d8

8 years ago[PM] Revert r279227 and r279228 until I can find someone to help me
Chandler Carruth [Fri, 19 Aug 2016 10:51:55 +0000 (10:51 +0000)]
[PM] Revert r279227 and r279228 until I can find someone to help me
solve completely opaque MSVC build errors. It complains about lots of
stuff with this change without givin nearly enough information to even
try to fix.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@279231 91177308-0d34-0410-b5e6-96231b3b80d8

8 years ago[X86][SSE] Add support for matching commuted insertps patterns
Simon Pilgrim [Fri, 19 Aug 2016 10:31:53 +0000 (10:31 +0000)]
[X86][SSE] Add support for matching commuted insertps patterns

INSERTPS doesn't fit well with our shuffle mask canonicalization, so we need to attempt both the original mask and the commuted mask to more likely get a match

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@279230 91177308-0d34-0410-b5e6-96231b3b80d8

8 years ago[SimplifyCFG] Rewrite SinkThenElseCodeToEnd
James Molloy [Fri, 19 Aug 2016 10:10:27 +0000 (10:10 +0000)]
[SimplifyCFG] Rewrite SinkThenElseCodeToEnd

The new version has several advantages:
  1) IMSHO it's more readable and neater
  2) It handles loads and stores properly
  3) It can handle any number of incoming blocks rather than just two. I'll be taking advantage of this in a followup patch.

With this change we can now finally sink load-modify-store idioms such as:

    if (a)
      return *b += 3;
    else
      return *b += 4;

    =>

    %z = load i32, i32* %y
    %.sink = select i1 %a, i32 5, i32 7
    %b = add i32 %z, %.sink
    store i32 %b, i32* %y
    ret i32 %b

When this works for switches it'll be even more powerful.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@279229 91177308-0d34-0410-b5e6-96231b3b80d8

8 years ago[PM] Fix a compile error with GCC. NFC.
Chandler Carruth [Fri, 19 Aug 2016 09:53:10 +0000 (09:53 +0000)]
[PM] Fix a compile error with GCC. NFC.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@279228 91177308-0d34-0410-b5e6-96231b3b80d8

8 years ago[PM] Make the the new pass manager support fully generic extra arguments
Chandler Carruth [Fri, 19 Aug 2016 09:45:16 +0000 (09:45 +0000)]
[PM] Make the the new pass manager support fully generic extra arguments
to run methods, both for transform passes and analysis passes.

This also allows the analysis manager to use a different set of extra
arguments from the pass manager where useful. Consider passes over
analysis produced units of IR like SCCs of the call graph or loops.
Passes of this nature will often want to refer to the analysis result
that was used to compute their IR units (the call graph or LoopInfo).
And for transformations, they may want to communicate special update
information to the outer pass manager. With this change, it becomes
possible to have a run method for a loop pass that looks more like:

  PreservedAnalyses run(Loop &L, AnalysisManager<Loop, LoopInfo> &AM,
                        LoopInfo &LI, LoopUpdateRecord &UR);

And to query the analysis manager like:

    AM.getResult<MyLoopAnalysis>(L, LI);

This makes accessing the known-available analyses convenient and clear,
and it makes passing customized data structures around easy.

My initial use case is going to be in updating the pass manager layers
when the analysis units of IR change. But there are more use cases here
such as having a layer that lets inner passes signal whether certain
additional passes should be run because of particular simplifications
made. Two desires for this have come up in the past: triggering
additional optimization after successfully unrolling loops, and
triggering additional inlining after collapsing indirect calls to direct
calls.

Despite adding this layer of generic extensibility, the *only* change to
existing, simple usage are for places where we forward declare the
AnalysisManager template. We really shouldn't be doing this because of
the fragility exposed here, but currently it makes coping with the
legacy PM code easier.

Differential Revision: http://reviews.llvm.org/D21462

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@279227 91177308-0d34-0410-b5e6-96231b3b80d8

8 years ago[PM] Try to work-around what appears to be an MSVC SFINAE issue with
Chandler Carruth [Fri, 19 Aug 2016 09:26:00 +0000 (09:26 +0000)]
[PM] Try to work-around what appears to be an MSVC SFINAE issue with
r279217 where it fails to select the path that other compilers select.

The workaround won't be as careful to produce an error when an analysis
result is incorrect, but we can rely on non-MSVC builds to catch such
errors it seems and MSVC doesn't seem to support the alternative
techniques.

Hoping this brings the windows bots back to life. If not, will have to
revert all of this.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@279225 91177308-0d34-0410-b5e6-96231b3b80d8

8 years ago[CodeGen] Fix a trivial type conversion bug dating back to pre-2008
James Molloy [Fri, 19 Aug 2016 08:38:50 +0000 (08:38 +0000)]
[CodeGen] Fix a trivial type conversion bug dating back to pre-2008

The heuristic above this code is incredibly suspect, but disregarding that it mutates the cast opcode so we need to check the *mutated* opcode later to see if we need to emit an AssertSext or AssertZext node.

Fixes PR29041.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@279223 91177308-0d34-0410-b5e6-96231b3b80d8

8 years ago[asan] Fix size of shadow incorrectly calculated in r279178
Vitaly Buka [Fri, 19 Aug 2016 08:33:53 +0000 (08:33 +0000)]
[asan] Fix size of shadow incorrectly calculated in r279178

Summary: r279178 generates 8 times more stores than necessary.

Reviewers: eugenis

Subscribers: llvm-commits

Differential Revision: https://reviews.llvm.org/D23708

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@279222 91177308-0d34-0410-b5e6-96231b3b80d8

8 years ago[PM] NFC refactoring: remove the AnalysisManagerBase class, folding it
Chandler Carruth [Fri, 19 Aug 2016 08:31:47 +0000 (08:31 +0000)]
[PM] NFC refactoring: remove the AnalysisManagerBase class, folding it
into the AnalysisManager class template.

Back when I first added this base class there were separate analysis
managers and some plausible reason why it would be a useful factoring of
common code between them. However, after a lot of refactoring cleaning,
we now have *entirely* shared code. The base class was just an arbitrary
division between code in one class template and a separate class
template. It didn't add anything and forced lots of indirection through
"derived_this" for no real gain.

We can always factor a base CRTP class out with common code if there is
ever some *other* analysis manager that wants to share a subset of
logic. But for now, folding things into the primary template is
a non-trivial simplification with no down sides I see. It shortens the
code considerably, removes an unhelpful abstraction, and will make
subsequent patches *dramatically* less complex which enhance the
analysis manager infrastructure to effectively cope with invalidation.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@279221 91177308-0d34-0410-b5e6-96231b3b80d8

8 years ago[modules] Add missing include.
Vassil Vassilev [Fri, 19 Aug 2016 08:30:42 +0000 (08:30 +0000)]
[modules] Add missing include.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@279219 91177308-0d34-0410-b5e6-96231b3b80d8

8 years ago[PM] Redesign how the new PM detects whether an analysis result provides
Chandler Carruth [Fri, 19 Aug 2016 07:49:23 +0000 (07:49 +0000)]
[PM] Redesign how the new PM detects whether an analysis result provides
its own invalidate method.

Previously, the technique would assume that if a result didn't have an
invalidate method that didn't exactly match the expected signature it
didn't have one at all. This is in fact not the case. And we had
analyses with incorrect signatures for the invalidate method in the
tree that would be erroneously invalidated in certain cases! Yikes.

Moreover a result might legitimately want to have multiple overloads for
the invalidate method, and if one changes or a new one is needed we
again really want a compiler error. For example in the tree we had not
added the overload for a *function* IR unit to the invalidate routine
for TLI. Doh.

So a new techique for the SFINAE detection here: if the result has *any*
member spelled "invalidate" we turn off the synthesis of a default
version. We don't care if it is a member function or a member variable
or how many overloads there are. Once a result has something by that
name it must provide suitable overloads for the contexts in which it is
used. This seems much more resilient and durable.

Huge props to Richard Smith who helped me figure out how on earth we
could even do this in C++. It took quite some doing. The technique is
remarkably clean however, and merely requires that the analysis results
are not *final* classes. I think that's a requirement we can live with
even if it is a bit odd.

I've fixed the two bad in-tree analysis results. And this will make my
next change which changes the API for invalidate much easier to
validate as correct.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@279217 91177308-0d34-0410-b5e6-96231b3b80d8

8 years ago[PM] Rework the new PM support for building the ModuleSummaryIndex to
Chandler Carruth [Fri, 19 Aug 2016 07:49:19 +0000 (07:49 +0000)]
[PM] Rework the new PM support for building the ModuleSummaryIndex to
directly produce the index as the value type result.

This requires making the index movable which is straightforward. It
greatly simplifies things by allowing us to completely avoid the builder
API and the layers of abstraction inherent there. Instead both pass
managers can directly construct these when run by value. They still
won't be constructed truly eagerly thanks to the optional in the legacy
PM. The code that directly builds the index can also just share a direct
function.

A notable change here is that the result type of the analysis for the
new PM is no longer a reference type. This was really problematic when
making changes to how we handle result types to make our interface
requirements *much* more strict and precise. But I think this is an
overall improvement.

Differential Revision: https://reviews.llvm.org/D23701

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@279216 91177308-0d34-0410-b5e6-96231b3b80d8

8 years agoFix tests in llvm/test/tools/gold/X86 to satisfy r279014.
NAKAMURA Takumi [Fri, 19 Aug 2016 06:44:44 +0000 (06:44 +0000)]
Fix tests in llvm/test/tools/gold/X86 to satisfy r279014.

They would unexpectedly pass if test/tools/gold/X86/Output had outputs of previous tests.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@279214 91177308-0d34-0410-b5e6-96231b3b80d8

8 years ago[Profile] Fix edge count read bug
Xinliang David Li [Fri, 19 Aug 2016 06:31:45 +0000 (06:31 +0000)]
[Profile] Fix edge count read bug

 Use uint64_t to avoid value truncation before scaling.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@279213 91177308-0d34-0410-b5e6-96231b3b80d8

8 years ago[LTO] Move callback member from base class to the derived where it is used (NFC)
Mehdi Amini [Fri, 19 Aug 2016 06:10:03 +0000 (06:10 +0000)]
[LTO] Move callback member from base class to the derived where it is used (NFC)

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@279212 91177308-0d34-0410-b5e6-96231b3b80d8

8 years agoConstify some path in the bitcode writer (NFC)
Mehdi Amini [Fri, 19 Aug 2016 06:06:18 +0000 (06:06 +0000)]
Constify some path in the bitcode writer (NFC)

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@279211 91177308-0d34-0410-b5e6-96231b3b80d8

8 years ago[LTO] Add a move to inialize member in ctor initialization list (NFC)
Mehdi Amini [Fri, 19 Aug 2016 05:56:37 +0000 (05:56 +0000)]
[LTO] Add a move to inialize member in ctor initialization list (NFC)

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@279210 91177308-0d34-0410-b5e6-96231b3b80d8

8 years ago[Profile] Simple code refactoring for reuse /NFC
Xinliang David Li [Fri, 19 Aug 2016 05:31:33 +0000 (05:31 +0000)]
[Profile] Simple code refactoring for reuse /NFC

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@279209 91177308-0d34-0410-b5e6-96231b3b80d8

8 years ago[XRay] Synthesize a reference to the xray_instr_map
Dean Michael Berris [Fri, 19 Aug 2016 04:44:30 +0000 (04:44 +0000)]
[XRay] Synthesize a reference to the xray_instr_map

Without the synthesized reference to a symbol in the xray_instr_map,
linker section garbage collection will helpfully remove the whole
xray_instr_map section from the final executable (or archive). This will
cause the runtime to not be able to identify the sleds and hot-patch the
calls/jumps into the runtime trampolines.

This change adds a reference from the text section at the end of the
function to keep around the associated xray_instr_map section as well.

We also make sure that we catch this reference in the test.

Reviewers: chandlerc, echristo, majnemer, mehdi_amini

Subscribers: mehdi_amini, llvm-commits, dberris

Differential Revision: https://reviews.llvm.org/D23398

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@279204 91177308-0d34-0410-b5e6-96231b3b80d8

8 years ago[RuntimeDyld][MCJIT] Un-XFAIL some tests that were fixed by r279182.
Lang Hames [Fri, 19 Aug 2016 03:12:16 +0000 (03:12 +0000)]
[RuntimeDyld][MCJIT] Un-XFAIL some tests that were fixed by r279182.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@279201 91177308-0d34-0410-b5e6-96231b3b80d8

8 years agoRevert "RegScavenging: Add scavengeRegisterBackwards()"
Matthias Braun [Fri, 19 Aug 2016 03:03:24 +0000 (03:03 +0000)]
Revert "RegScavenging: Add scavengeRegisterBackwards()"

The ppc64 multistage bot fails on this.

This reverts commit r279124.

Also Revert "CodeGen: Add/Factor out LiveRegUnits class; NFCI" because it depends on the previous change
This reverts commit r279171.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@279199 91177308-0d34-0410-b5e6-96231b3b80d8

8 years ago[ADT] Add the worlds simplest STL extra. Or at least close to it.
Chandler Carruth [Fri, 19 Aug 2016 02:07:51 +0000 (02:07 +0000)]
[ADT] Add the worlds simplest STL extra. Or at least close to it.

This is a little class template that just builds an inheritance chain of
empty classes. Despite how simple this is, it can be used to really
nicely create ranked overload sets. I've added a unittest as much to
document this as test it. You can pass an object of this type as an
argument to a function overload set an it will call the first viable and
enabled candidate at or below the rank of the object.

I'm planning to use this in a subsequent commit to more clearly rank
overload candidates used for SFINAE. All credit for this technique and
both lines of code here to Richard Smith who was helping me rewrite the
SFINAE check in question to much more effectively capture the intended
set of checks.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@279197 91177308-0d34-0410-b5e6-96231b3b80d8

8 years ago[RuntimeDyld] Add support for ELF R_ARM_REL32 and R_ARM_GOT_PREL.
Lang Hames [Fri, 19 Aug 2016 01:15:39 +0000 (01:15 +0000)]
[RuntimeDyld] Add support for ELF R_ARM_REL32 and R_ARM_GOT_PREL.

Patch by William Dillon. Thanks William!

This patch adds support for the R_ARM_REL32 and R_ARM_GOT_PREL ELF ARM
relocations to RuntimeDyld, which should allow JITing of code that
produces these relocations.

No test case: Unfortunately RuntimeDyldELF's GOT building mechanism (which
uses a separate section for GOT entries) isn't compatible with
RuntimeDyldChecker. The correct fix for this is to fix RuntimeDyldELF's GOT
support (it's fundamentally broken at the moment: separate sections aren't
guaranteed to be in range of a GOT entry load), but that's a non-trivial job.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@279182 91177308-0d34-0410-b5e6-96231b3b80d8

8 years ago[asan] Optimize store size in FunctionStackPoisoner::poisonRedZones
Vitaly Buka [Thu, 18 Aug 2016 23:51:15 +0000 (23:51 +0000)]
[asan] Optimize store size in FunctionStackPoisoner::poisonRedZones

Summary: Reduce store size to avoid leading and trailing zeros.

Reviewers: kcc, eugenis

Subscribers: llvm-commits

Differential Revision: https://reviews.llvm.org/D23648

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@279178 91177308-0d34-0410-b5e6-96231b3b80d8

8 years agoInclude X86CallFrameOptimization in the opt-bisect process.
Andrew Kaylor [Thu, 18 Aug 2016 22:49:51 +0000 (22:49 +0000)]
Include X86CallFrameOptimization in the opt-bisect process.

Differential Revision: https://reviews.llvm.org/D23683

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@279175 91177308-0d34-0410-b5e6-96231b3b80d8

8 years agoAArch64: remove extraneous padding
Saleem Abdulrasool [Thu, 18 Aug 2016 22:35:06 +0000 (22:35 +0000)]
AArch64: remove extraneous padding

The structs BarrierOp, PrefetchOp, PSBHintOp are in AArch64AsmParser.cpp
(inside anonymous namespace).  This diff changes the order of fields and
removes the excessive padding (8 bytes).

Patch by Alexander Shaposhnikov!

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@279173 91177308-0d34-0410-b5e6-96231b3b80d8

8 years ago[CMake] Add variables for tracking which runtimes are included
Chris Bieneman [Thu, 18 Aug 2016 22:18:11 +0000 (22:18 +0000)]
[CMake] Add variables for tracking which runtimes are included

This allows sub-projects to have conditionals based on the presence of other projects.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@279172 91177308-0d34-0410-b5e6-96231b3b80d8

8 years agoCodeGen: Add/Factor out LiveRegUnits class; NFCI
Matthias Braun [Thu, 18 Aug 2016 22:11:28 +0000 (22:11 +0000)]
CodeGen: Add/Factor out LiveRegUnits class; NFCI

This is a set of register units intended to track register liveness, it
is similar in spirit to LivePhysRegs.
You can also think of this as the liveness tracking parts of the
RegisterScavenger factored out into an own class.

This was proposed in http://llvm.org/PR27609

Differential Revision: http://reviews.llvm.org/D21916

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@279171 91177308-0d34-0410-b5e6-96231b3b80d8

8 years agoFix link quotes on AArch64's CompilerWriterInfo section.
Jacques Pienaar [Thu, 18 Aug 2016 22:10:06 +0000 (22:10 +0000)]
Fix link quotes on AArch64's CompilerWriterInfo section.

Reviewers: t.p.northover

Subscribers: t.p.northover, aemerson, rengolin

Differential Revision: https://reviews.llvm.org/D23697

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@279169 91177308-0d34-0410-b5e6-96231b3b80d8

8 years agoCodeGen: If Convert blocks that would form a diamond when tail-merged.
Kyle Butt [Thu, 18 Aug 2016 22:09:27 +0000 (22:09 +0000)]
CodeGen: If Convert blocks that would form a diamond when tail-merged.

The following function currently relies on tail-merging for if
conversion to succeed. The common tail of cond_true and cond_false is
extracted, and this then forms a diamond pattern that can be
successfully if converted.

If this block does not get extracted, either because tail-merging is
disabled or the threshold is higher, we should still recognize this
pattern and if-convert it.

Fixed a regression in the original commit. Need to un-reverse branches after
reversing them, or other conversions go awry.

Regression on self-hosting bots with no obvious explanation. Tidied up range
handling to be more obviously correct, but there was no smoking gun.

define i32 @t2(i32 %a, i32 %b) nounwind {
entry:
        %tmp1434 = icmp eq i32 %a, %b           ; <i1> [#uses=1]
        br i1 %tmp1434, label %bb17, label %bb.outer

bb.outer:               ; preds = %cond_false, %entry
        %b_addr.021.0.ph = phi i32 [ %b, %entry ], [ %tmp10, %cond_false ]
        %a_addr.026.0.ph = phi i32 [ %a, %entry ], [ %a_addr.026.0, %cond_false ]
        br label %bb

bb:             ; preds = %cond_true, %bb.outer
        %indvar = phi i32 [ 0, %bb.outer ], [ %indvar.next, %cond_true ]
        %tmp. = sub i32 0, %b_addr.021.0.ph
        %tmp.40 = mul i32 %indvar, %tmp.
        %a_addr.026.0 = add i32 %tmp.40, %a_addr.026.0.ph
        %tmp3 = icmp sgt i32 %a_addr.026.0, %b_addr.021.0.ph
        br i1 %tmp3, label %cond_true, label %cond_false

cond_true:              ; preds = %bb
        %tmp7 = sub i32 %a_addr.026.0, %b_addr.021.0.ph
        %tmp1437 = icmp eq i32 %tmp7, %b_addr.021.0.ph
        %indvar.next = add i32 %indvar, 1
        br i1 %tmp1437, label %bb17, label %bb

cond_false:             ; preds = %bb
        %tmp10 = sub i32 %b_addr.021.0.ph, %a_addr.026.0
        %tmp14 = icmp eq i32 %a_addr.026.0, %tmp10
        br i1 %tmp14, label %bb17, label %bb.outer

bb17:           ; preds = %cond_false, %cond_true, %entry
        %a_addr.026.1 = phi i32 [ %a, %entry ], [ %tmp7, %cond_true ], [ %a_addr.026.0, %cond_false ]
        ret i32 %a_addr.026.1
}

Without tail-merging or diamond-tail if conversion:
LBB1_1:                                 @ %bb
                                        @ =>This Inner Loop Header: Depth=1
        cmp     r0, r1
        ble     LBB1_3
@ BB#2:                                 @ %cond_true
                                        @   in Loop: Header=BB1_1 Depth=1
        subs    r0, r0, r1
        cmp     r1, r0
        it      ne
        cmpne   r0, r1
        bgt     LBB1_4
LBB1_3:                                 @ %cond_false
                                        @   in Loop: Header=BB1_1 Depth=1
        subs    r1, r1, r0
        cmp     r1, r0
        bne     LBB1_1
LBB1_4:                                 @ %bb17
        bx      lr

With diamond-tail if conversion, but without tail-merging:
@ BB#0:                                 @ %entry
        cmp     r0, r1
        it      eq
        bxeq    lr
LBB1_1:                                 @ %bb
                                        @ =>This Inner Loop Header: Depth=1
        cmp     r0, r1
        ite     le
        suble   r1, r1, r0
        subgt   r0, r0, r1
        cmp     r1, r0
        bne     LBB1_1
@ BB#2:                                 @ %bb17
        bx      lr

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@279168 91177308-0d34-0410-b5e6-96231b3b80d8

8 years agoIfConversion: Rescan diamonds.
Kyle Butt [Thu, 18 Aug 2016 22:09:25 +0000 (22:09 +0000)]
IfConversion: Rescan diamonds.

The cost of predicating a diamond is only the instructions that are not shared
between the two branches. Additionally If a predicate clobbering instruction
occurs in the shared portion of the branches (e.g. a cond move), it may still
be possible to if convert the sub-cfg. This change handles these two facts by
rescanning the non-shared portion of a diamond sub-cfg to recalculate both the
predication cost and whether both blocks are pred-clobbering.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@279167 91177308-0d34-0410-b5e6-96231b3b80d8

8 years agoIfConversion: Handle inclusive ranges more carefully.
Kyle Butt [Thu, 18 Aug 2016 22:09:23 +0000 (22:09 +0000)]
IfConversion: Handle inclusive ranges more carefully.

This may affect calculations for thresholds, but is not a significant change
in behavior.

The problem was that an inclusive range must have an additonal flag to showr
that it is empty, because otherwise begin == end implies that the range has one
element, and it may not be possible to move past on either side.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@279166 91177308-0d34-0410-b5e6-96231b3b80d8

8 years agollvm-objdump: Add Hexagon printer changes for -S/-l options
Hemant Kulkarni [Thu, 18 Aug 2016 21:50:13 +0000 (21:50 +0000)]
llvm-objdump: Add Hexagon printer changes for -S/-l options

Differential Revision: https://reviews.llvm.org/D23521

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@279161 91177308-0d34-0410-b5e6-96231b3b80d8

8 years ago[CMake] Create convenience targets for runtime projects
Chris Bieneman [Thu, 18 Aug 2016 21:47:18 +0000 (21:47 +0000)]
[CMake] Create convenience targets for runtime projects

Each runtime project has a top-level target that is the name of the runtime (minus the "lib" prefix if applicable). This creates top-level targets mapping to runtime projects.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@279160 91177308-0d34-0410-b5e6-96231b3b80d8

8 years ago[SystemZ] Use valid base/index regs for inline asm
Zhan Jun Liau [Thu, 18 Aug 2016 21:44:15 +0000 (21:44 +0000)]
[SystemZ] Use valid base/index regs for inline asm

Summary:
Inline asm memory constraints can have the base or index register be assigned
to %r0 right now. Make sure that we assign only ADDR64 registers to the base
and index.

Reviewers: uweigand

Subscribers: llvm-commits

Differential Revision: https://reviews.llvm.org/D23367

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@279157 91177308-0d34-0410-b5e6-96231b3b80d8

8 years ago[Analysis] Change several Analysis pieces to use NodeRef. NFC.
Tim Shen [Thu, 18 Aug 2016 21:41:24 +0000 (21:41 +0000)]
[Analysis] Change several Analysis pieces to use NodeRef. NFC.

Reviewers: dblaikie, grosser

Subscribers: mzolotukhin, llvm-commits

Differential Revision: https://reviews.llvm.org/D23625

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@279156 91177308-0d34-0410-b5e6-96231b3b80d8

8 years ago[CMake] Make llvm-config implicit dependency for subprojects
Chris Bieneman [Thu, 18 Aug 2016 21:41:21 +0000 (21:41 +0000)]
[CMake] Make llvm-config implicit dependency for subprojects

The subproject interface being used for runtime libraries expects that llvm-config is passed into the subproject for consumption. We currently do this for every subproject, so we should expect that all LLVM ExternalProjects depend on llvm-config for the time being.

Eventually I'd like to see the sub-projects using LLVMConfig.cmake instead of the llvm-config binary, but that will take time to roll out.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@279155 91177308-0d34-0410-b5e6-96231b3b80d8

8 years ago[CMake] Minor fix to regex in r279152
Chris Bieneman [Thu, 18 Aug 2016 21:36:36 +0000 (21:36 +0000)]
[CMake] Minor fix to regex in r279152

The third version component is optional in Xcode's version spew, so we need to make it optional in the regex.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@279153 91177308-0d34-0410-b5e6-96231b3b80d8

8 years ago[CMake] Support for generating Xcode 8 compatible toolchains
Chris Bieneman [Thu, 18 Aug 2016 21:32:48 +0000 (21:32 +0000)]
[CMake] Support for generating Xcode 8 compatible toolchains

Xcode 8 requires toolchain compatibility version 2. This allows us to select the correct compatibility version based on the installed version of Xcode.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@279152 91177308-0d34-0410-b5e6-96231b3b80d8

8 years ago[InstCombine] add helper function for folds of icmp (shl 1, Y), C; NFCI
Sanjay Patel [Thu, 18 Aug 2016 21:28:30 +0000 (21:28 +0000)]
[InstCombine] add helper function for folds of icmp (shl 1, Y), C; NFCI

Clean up the existing code by:
1. Renaming variables
2. Adding local variables
3. Making it vector-safe

This is still guarded by a ConstantInt check, so no functional change is intended.
But this should be ready to go: if we move the ConstantInt check down, all of
these folds should do the right thing for vector types.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@279150 91177308-0d34-0410-b5e6-96231b3b80d8

8 years ago[lanai] Add ISA document to CompilerWritersInfo
Jacques Pienaar [Thu, 18 Aug 2016 21:25:17 +0000 (21:25 +0000)]
[lanai] Add ISA document to CompilerWritersInfo

Summary: Add Lanai ISA document to CompilerWritersInfo.

Reviewers: eliben

Subscribers: aemerson, llvm-commits

Differential Revision: https://reviews.llvm.org/D23693

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@279149 91177308-0d34-0410-b5e6-96231b3b80d8

8 years agoAMDGPU/SI: Fix a test in wqm.ll to always use s_cbranch_vcc*
Tom Stellard [Thu, 18 Aug 2016 21:21:53 +0000 (21:21 +0000)]
AMDGPU/SI: Fix a test in wqm.ll to always use s_cbranch_vcc*

Summary:
We need to use floating-point compares to ensure that s_cbranch_vcc*
instructions are always generated.  With integer compares, future
optimizations could cause s_cbranch_scc* to be generated instead.

Reviewers: arsenm, nhaehnle

Subscribers: llvm-commits, kzhuravl

Differential Revision: https://reviews.llvm.org/D23401

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@279148 91177308-0d34-0410-b5e6-96231b3b80d8

8 years ago[libFuzzer] add more __attribute__((visibility("default")))
Kostya Serebryany [Thu, 18 Aug 2016 20:52:52 +0000 (20:52 +0000)]
[libFuzzer] add more __attribute__((visibility("default")))

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@279143 91177308-0d34-0410-b5e6-96231b3b80d8

8 years agoMake cltz and cttz zero undef when the operand cannot be zero in InstCombine
Amaury Sechet [Thu, 18 Aug 2016 20:43:50 +0000 (20:43 +0000)]
Make cltz and cttz zero undef when the operand cannot be zero in InstCombine

Summary: Also add popcount(n) == bitsize(n)  -> n == -1 transformation.

Reviewers: majnemer, spatel

Subscribers: llvm-commits

Differential Revision: https://reviews.llvm.org/D23134

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@279141 91177308-0d34-0410-b5e6-96231b3b80d8

8 years ago[InstCombine] use m_APInt to allow icmp (trunc X, Y), C folds for splat constant...
Sanjay Patel [Thu, 18 Aug 2016 20:28:54 +0000 (20:28 +0000)]
[InstCombine] use m_APInt to allow icmp (trunc X, Y), C folds for splat constant vectors

This is a sibling of:
https://reviews.llvm.org/rL278859
https://reviews.llvm.org/rL278935
https://reviews.llvm.org/rL278945
https://reviews.llvm.org/rL279066
https://reviews.llvm.org/rL279077
https://reviews.llvm.org/rL279101

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@279133 91177308-0d34-0410-b5e6-96231b3b80d8

8 years ago[InstCombine] clean up foldICmpTruncConstant(); NFCI
Sanjay Patel [Thu, 18 Aug 2016 20:25:16 +0000 (20:25 +0000)]
[InstCombine] clean up foldICmpTruncConstant(); NFCI

1. Fix variable names
2. Add local variables to reduce code

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@279132 91177308-0d34-0410-b5e6-96231b3b80d8

8 years ago[SelectionDAG] Rename fextend -> fpextend, fround -> fpround, frnd -> fround
Michael Kuperstein [Thu, 18 Aug 2016 20:08:15 +0000 (20:08 +0000)]
[SelectionDAG] Rename fextend -> fpextend, fround -> fpround, frnd -> fround

The names of the tablegen defs now match the names of the ISD nodes.
This makes the world a slightly saner place, as previously "fround" matched
ISD::FP_ROUND and not ISD::FROUND.

Differential Revision: https://reviews.llvm.org/D23597

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@279129 91177308-0d34-0410-b5e6-96231b3b80d8

8 years agoAMDGPU : Fix QSAD and MQSAD instructions' incorrect data type.
Wei Ding [Thu, 18 Aug 2016 19:51:14 +0000 (19:51 +0000)]
AMDGPU : Fix QSAD and MQSAD instructions' incorrect data type.

Differential Revision: http://reviews.llvm.org/D23689

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@279126 91177308-0d34-0410-b5e6-96231b3b80d8

8 years ago[SLP] Initialize VectorizedValue when gathering
Matthew Simpson [Thu, 18 Aug 2016 19:50:32 +0000 (19:50 +0000)]
[SLP] Initialize VectorizedValue when gathering

We abort building vectorizable trees in some cases (e.g., if the maximum
recursion depth is reached, if the region size is too large, etc.). If this
happens for a reduction, we can be left with a root entry that needs to be
gathered. For these cases, we need make sure we actually set VectorizedValue to
the resulting vector.

This patch ensures we properly set VectorizedValue, and it also ensures the
insertelement sequence generated for the gathers is inserted at the correct
location.

Reference: https://llvm.org/bugs/show_bug.cgi?id=28330
Differential Revison: https://reviews.llvm.org/D23410

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@279125 91177308-0d34-0410-b5e6-96231b3b80d8

8 years agoRegScavenging: Add scavengeRegisterBackwards()
Matthias Braun [Thu, 18 Aug 2016 19:47:59 +0000 (19:47 +0000)]
RegScavenging: Add scavengeRegisterBackwards()

Re-apply r276044 with off-by-1 instruction fix for the reload placement.

This is a variant of scavengeRegister() that works for
enterBasicBlockEnd()/backward(). The benefit of the backward mode is
that it is not affected by incomplete kill flags.

This patch also changes
PrologEpilogInserter::doScavengeFrameVirtualRegs() to use the register
scavenger in backwards mode.

Differential Revision: http://reviews.llvm.org/D21885

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@279124 91177308-0d34-0410-b5e6-96231b3b80d8

8 years agoBranch Folding: Accept explicit threshold for tail merge size.
Kyle Butt [Thu, 18 Aug 2016 18:57:29 +0000 (18:57 +0000)]
Branch Folding: Accept explicit threshold for tail merge size.

This is prep work for allowing the threshold to be different during layout,
and to enforce a single threshold between merging and duplicating during
layout. No observable change intended.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@279117 91177308-0d34-0410-b5e6-96231b3b80d8

8 years agoAdd a version of Intrinsic::getName which is more efficient when there are no overloads.
Pete Cooper [Thu, 18 Aug 2016 18:30:54 +0000 (18:30 +0000)]
Add a version of Intrinsic::getName which is more efficient when there are no overloads.

When running 'opt -O2 verify-uselistorder-nodbg.lto.bc', there are 33m allocations.  8.2m
come from std::string allocations in Intrinsic::getName().  Turns out this method only
returns a std::string because it needs to handle overloads, but that is not the common case.

This adds an overload of getName which just returns a StringRef when there are no overloads
and so saves on the allocations.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@279113 91177308-0d34-0410-b5e6-96231b3b80d8

8 years ago[X86][SSE] Missed insertps shuffle patterns
Simon Pilgrim [Thu, 18 Aug 2016 18:19:28 +0000 (18:19 +0000)]
[X86][SSE] Missed insertps shuffle patterns

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@279111 91177308-0d34-0410-b5e6-96231b3b80d8

8 years ago[CMake] Silence message on multi-configuration generators
Chris Bieneman [Thu, 18 Aug 2016 18:17:28 +0000 (18:17 +0000)]
[CMake] Silence message on multi-configuration generators

The Xcode and Visual Studio generators always log "-- No build type selected, default to Debug". This is because CMake doesn't initialize "CMAKE_CONFIGURATION_TYPES" until the generator's EnableLanguage call gets hit.

The first place EnableLanguage gets hit in our configuration is in the project() call. Since CMAKE_BUILD_TYPE isn't used until after we call project() it is safe to just move this check down a bit.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@279110 91177308-0d34-0410-b5e6-96231b3b80d8

8 years ago[asan] Extend test
Vitaly Buka [Thu, 18 Aug 2016 18:17:19 +0000 (18:17 +0000)]
[asan] Extend test

Summary: PR27453

Reviewers: eugenis

Subscribers: llvm-commits

Differential Revision: https://reviews.llvm.org/D23647

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@279109 91177308-0d34-0410-b5e6-96231b3b80d8