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5 years agoRevert "[AMDGPU] Fix DPP combiner"
Valery Pykhtin [Wed, 9 Jan 2019 15:21:53 +0000 (15:21 +0000)]
Revert "[AMDGPU] Fix DPP combiner"

This reverts commit e3e2923a39cbec3b3bc3a7d3f0e9a77a4115080e, svn revision rL350721

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@350730 91177308-0d34-0410-b5e6-96231b3b80d8

5 years agoInitial AArch64 SLH implementation.
Kristof Beyls [Wed, 9 Jan 2019 15:13:34 +0000 (15:13 +0000)]
Initial AArch64 SLH implementation.

This is an initial implementation for Speculative Load Hardening for
AArch64. It builds on top of the recently introduced
AArch64SpeculationHardening pass.
This doesn't implement (yet) some of the optimizations implemented for
the X86SpeculativeLoadHardening pass. I thought introducing the
optimizations incrementally in follow-up patches should make this easier
to review.

Differential Revision: https://reviews.llvm.org/D55929

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@350729 91177308-0d34-0410-b5e6-96231b3b80d8

5 years ago[llvm-objdump] - Print symbol addressed when dumping disassembly output (-d)
George Rimar [Wed, 9 Jan 2019 14:43:33 +0000 (14:43 +0000)]
[llvm-objdump] - Print symbol addressed when dumping disassembly output (-d)

When GNU objdump dumps the input with -d it prints the symbol addresses,
for example:

0000000000000031 <foo>:
  31: 00 00                 add    %al,(%rax)
...

llvm-objdump currently does not do that.
Patch changes the behavior to match the GNU objdump.

That is useful for implementing -z/--disassemble-zeroes (D56083),
it allows omitting first zero bytes and keep the information
about the symbol address in the output.

Differential revision: https://reviews.llvm.org/D56123

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@350726 91177308-0d34-0410-b5e6-96231b3b80d8

5 years agoFix typo in comment
Nico Weber [Wed, 9 Jan 2019 14:20:20 +0000 (14:20 +0000)]
Fix typo in comment

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@350725 91177308-0d34-0410-b5e6-96231b3b80d8

5 years ago[X86][SSE] Cleanup shuffle combining test check prefixes
Simon Pilgrim [Wed, 9 Jan 2019 13:46:14 +0000 (13:46 +0000)]
[X86][SSE] Cleanup shuffle combining test check prefixes

Share prefixes whenever possible, use X86 instead of X32.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@350722 91177308-0d34-0410-b5e6-96231b3b80d8

5 years ago[AMDGPU] Fix DPP combiner
Valery Pykhtin [Wed, 9 Jan 2019 13:43:32 +0000 (13:43 +0000)]
[AMDGPU] Fix DPP combiner

Fixed issue with identity values and other cases, f32/f16 identity values to be added later. fma/mac instructions is disabled for now.
Test is fully reworked, added comments. Other fixes:

1. dpp move with uses and old reg initializer should be in the same BB.
2. bound_ctrl:0 is only considered when bank_mask and row_mask are fully enabled (0xF). Othervise the old register value is checked for identity.
3. Added add, subrev, and, or instructions to the old folding function.
4. Kill flag is cleared for the src0 (DPP register) as it may be copied into more than one user.

Differential revision: https://reviews.llvm.org/D55444

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@350721 91177308-0d34-0410-b5e6-96231b3b80d8

5 years agoRevert r350647: "[NewPM] Port tsan"
Florian Hahn [Wed, 9 Jan 2019 13:32:16 +0000 (13:32 +0000)]
Revert r350647: "[NewPM] Port tsan"

This patch breaks thread sanitizer on some macOS builders, e.g.
http://green.lab.llvm.org/green/job/clang-stage1-configure-RA/52725/

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@350719 91177308-0d34-0410-b5e6-96231b3b80d8

5 years ago[X86] Enable combining shuffles to PACKSS/PACKUS for 256/512-bit vectors
Simon Pilgrim [Wed, 9 Jan 2019 13:23:28 +0000 (13:23 +0000)]
[X86] Enable combining shuffles to PACKSS/PACKUS for 256/512-bit vectors

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@350716 91177308-0d34-0410-b5e6-96231b3b80d8

5 years ago[MSP430] Optimize 'shl x, 8[+ N] -> swpb(zext(x)) [<< N]' for i16
Anton Korobeynikov [Wed, 9 Jan 2019 13:03:01 +0000 (13:03 +0000)]
[MSP430] Optimize 'shl x, 8[+ N] -> swpb(zext(x)) [<< N]' for i16

Perform additional simplification to reduce shift amount.

Patch by Kristina Bessonova!

Differential Revision: https://reviews.llvm.org/D56016

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@350712 91177308-0d34-0410-b5e6-96231b3b80d8

5 years ago[gn build] Run `git ls-files '*.gn' '*.gni' | xargs -n 1 gn format`
Nico Weber [Wed, 9 Jan 2019 12:57:52 +0000 (12:57 +0000)]
[gn build] Run `git ls-files '*.gn' '*.gni' | xargs -n 1 gn format`

Looks like I forgot to do that for the PowerPC target.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@350711 91177308-0d34-0410-b5e6-96231b3b80d8

5 years ago[MSP430] Fix crash while lowering llvm.stacksave/stackrestore
Anton Korobeynikov [Wed, 9 Jan 2019 12:52:15 +0000 (12:52 +0000)]
[MSP430] Fix crash while lowering llvm.stacksave/stackrestore

Perform the usual expansion of stacksave / restore intrinsics.
Patch by Kristina Bessonova!

Differential Revision: https://reviews.llvm.org/D54890

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@350710 91177308-0d34-0410-b5e6-96231b3b80d8

5 years ago[gn build] Merge r350669
Nico Weber [Wed, 9 Jan 2019 12:48:06 +0000 (12:48 +0000)]
[gn build] Merge r350669

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@350709 91177308-0d34-0410-b5e6-96231b3b80d8

5 years ago[gn build] Add a TODO.txt file
Nico Weber [Wed, 9 Jan 2019 12:46:04 +0000 (12:46 +0000)]
[gn build] Add a TODO.txt file

Differential Revision: https://reviews.llvm.org/D56420

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@350708 91177308-0d34-0410-b5e6-96231b3b80d8

5 years ago[X86] Add extra test coverage for combining shuffles to PACKSS/PACKUS
Simon Pilgrim [Wed, 9 Jan 2019 12:34:10 +0000 (12:34 +0000)]
[X86] Add extra test coverage for combining shuffles to PACKSS/PACKUS

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@350707 91177308-0d34-0410-b5e6-96231b3b80d8

5 years ago[AArch64] Move feature predctrl to predres
Diogo N. Sampaio [Wed, 9 Jan 2019 11:24:15 +0000 (11:24 +0000)]
[AArch64] Move feature predctrl to predres

Follow up patch of rL350385, for adding predres
command line option. This patch renames the
feature as to keep it aligned with the option
passed by/to clang

Differential Revision: https://reviews.llvm.org/D56484

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@350702 91177308-0d34-0410-b5e6-96231b3b80d8

5 years ago[X86] Fix gcc7 -Wunused-but-set-variable warning. NFCI.
Simon Pilgrim [Wed, 9 Jan 2019 11:18:49 +0000 (11:18 +0000)]
[X86] Fix gcc7 -Wunused-but-set-variable warning. NFCI.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@350701 91177308-0d34-0410-b5e6-96231b3b80d8

5 years agoMake the write_cmake_config.py script python3-compatible
Alexander Kornienko [Wed, 9 Jan 2019 10:49:44 +0000 (10:49 +0000)]
Make the write_cmake_config.py script python3-compatible

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@350700 91177308-0d34-0410-b5e6-96231b3b80d8

5 years ago[DebugInfo] Omit location list entries with empty ranges
David Stenberg [Wed, 9 Jan 2019 09:58:59 +0000 (09:58 +0000)]
[DebugInfo] Omit location list entries with empty ranges

Summary:
This fixes PR39710. In that case we emitted a location list looking like
this:

.Ldebug_loc0:
        .quad   .Lfunc_begin0-.Lfunc_begin0
        .quad   .Lfunc_begin0-.Lfunc_begin0
        .short  1                       # Loc expr size
        .byte   85                      # DW_OP_reg5
        .quad   .Lfunc_begin0-.Lfunc_begin0
        .quad   .Lfunc_end0-.Lfunc_begin0
        .short  1                       # Loc expr size
        .byte   85                      # super-register DW_OP_reg5
        .quad   0
        .quad   0

As seen, the first entry's beginning and ending addresses evalute to 0,
which meant that the entry inadvertently became an "end of list" entry,
resulting in the location list ending sooner than expected.

To fix this, omit all entries with empty ranges. Location list entries
with empty ranges do not have any effect, as specified by DWARF, so we
might as well drop them:

"A location list entry (but not a base address selection or end of list
 entry) whose beginning and ending addresses are equal has no effect
 because the size of the range covered by such an entry is zero."

Reviewers: davide, aprantl, dblaikie

Reviewed By: aprantl

Subscribers: javed.absar, JDevlieghere, llvm-commits

Tags: #debug-info

Differential Revision: https://reviews.llvm.org/D55919

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@350698 91177308-0d34-0410-b5e6-96231b3b80d8

5 years agoGlobalISel: Implement fewerElements for implicit_def
Matt Arsenault [Wed, 9 Jan 2019 07:51:52 +0000 (07:51 +0000)]
GlobalISel: Implement fewerElements for implicit_def

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@350697 91177308-0d34-0410-b5e6-96231b3b80d8

5 years agoGlobalISel: Implement widenScalar for implicit_def
Matt Arsenault [Wed, 9 Jan 2019 07:34:14 +0000 (07:34 +0000)]
GlobalISel: Implement widenScalar for implicit_def

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@350695 91177308-0d34-0410-b5e6-96231b3b80d8

5 years ago[IPT] Drop cache less eagerly in GVN and LoopSafetyInfo
Max Kazantsev [Wed, 9 Jan 2019 07:28:13 +0000 (07:28 +0000)]
[IPT] Drop cache less eagerly in GVN and LoopSafetyInfo

Current strategy of dropping `InstructionPrecedenceTracking` cache is to
invalidate the entire basic block whenever we change its contents. In fact,
`InstructionPrecedenceTracking` has 2 internal strictures: `OrderedInstructions`
that is needed to be invalidated whenever the contents changes, and the map
with first special instructions in block. This second map does not need an
update if we add/remove a non-special instuction because it cannot
affect the contents of this map.

This patch changes API of `InstructionPrecedenceTracking` so that it now
accounts for reasons under which we invalidate blocks. This should lead
to much less recalculations of the map and should save us some compile time
because in practice we don't typically add/remove special instructions.

Differential Revision: https://reviews.llvm.org/D54462
Reviewed By: efriedma

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@350694 91177308-0d34-0410-b5e6-96231b3b80d8

5 years agoRevert "[PowerPC] Fix assert from machine verify pass that unmatched register class...
Zi Xuan Wu [Wed, 9 Jan 2019 06:12:24 +0000 (06:12 +0000)]
Revert "[PowerPC] Fix assert from machine verify pass that unmatched register class about fcmp selection in fast-isel"

This reverts commit r350685.

See compile assert in compiler-rt.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@350693 91177308-0d34-0410-b5e6-96231b3b80d8

5 years ago[NFC] fix trivial typos in comments
Hiroshi Inoue [Wed, 9 Jan 2019 05:11:10 +0000 (05:11 +0000)]
[NFC] fix trivial typos in comments

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@350690 91177308-0d34-0410-b5e6-96231b3b80d8

5 years agogn build: Copy file permissions from input file in configure_file() emulation.
Peter Collingbourne [Wed, 9 Jan 2019 04:39:29 +0000 (04:39 +0000)]
gn build: Copy file permissions from input file in configure_file() emulation.

Most significantly, this makes bin/llvm-lit executable so that it
can be run in the usual way.

Differential Revision: https://reviews.llvm.org/D56423

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@350688 91177308-0d34-0410-b5e6-96231b3b80d8

5 years ago[X86] Correct the MaskVT for avx512 gather/scatter intrinsics to use the min of the...
Craig Topper [Wed, 9 Jan 2019 04:21:12 +0000 (04:21 +0000)]
[X86] Correct the MaskVT for avx512 gather/scatter intrinsics to use the min of the number of index and data elements.

When the result type is v2i64/v2f64 and the index element size is i32, the index vector has two unused elements making the type v4i32. The mask VT should match the number of memory accesses that will be made.

This is consistent with the isel patterns used for the target independent gather/scatter intrinsic.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@350687 91177308-0d34-0410-b5e6-96231b3b80d8

5 years agogn build: Fix a Python2ism in write_vcsrevision.py.
Peter Collingbourne [Wed, 9 Jan 2019 04:05:07 +0000 (04:05 +0000)]
gn build: Fix a Python2ism in write_vcsrevision.py.

Convert the output of "git rev-parse --short HEAD" to a string before
substituting it into the output file. Without this the output file
will look like this on Python 3:

 #define LLVM_REVISION "git-b'6a4895a025f'"

Differential Revision: https://reviews.llvm.org/D56459

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@350686 91177308-0d34-0410-b5e6-96231b3b80d8

5 years ago[PowerPC] Fix assert from machine verify pass that unmatched register class about...
Zi Xuan Wu [Wed, 9 Jan 2019 02:31:10 +0000 (02:31 +0000)]
[PowerPC] Fix assert from machine verify pass that unmatched register class about fcmp selection in fast-isel

Bad machine code: Illegal virtual register for instruction

function: TestULE
basic block: %bb.0 entry (0x1000a39b158)
instruction: %2:crrc = FCMPUD %1:vsfrc, %3:f8rc
operand 1: %1:vsfrc

Fix assert about missing match between fcmp instruction and register class.
We should use vsx related cmp instruction xvcmpudp instead of fcmpu when vsx is opened.

add -verifymachineinstrs option into related test cases to enable the verify pass.

Differential Revision: https://reviews.llvm.org/D55686

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@350685 91177308-0d34-0410-b5e6-96231b3b80d8

5 years agoRemove check for single use in ShrinkDemandedConstant
Stanislav Mekhanoshin [Wed, 9 Jan 2019 02:24:22 +0000 (02:24 +0000)]
Remove check for single use in ShrinkDemandedConstant

This removes check for single use from general ShrinkDemandedConstant
to the BE because of the AArch64 regression after D56289/rL350475.

After several hours of experiments I did not come up with a testcase
failing on any other targets if check is not performed.

Moreover, direct call to ShrinkDemandedConstant is not really needed
and superceed by SimplifyDemandedBits.

Differential Revision: https://reviews.llvm.org/D56406

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@350684 91177308-0d34-0410-b5e6-96231b3b80d8

5 years agoRegisterCoalescer: Assume CR_Replace for SubRangeJoin
Matt Arsenault [Tue, 8 Jan 2019 23:22:18 +0000 (23:22 +0000)]
RegisterCoalescer: Assume CR_Replace for SubRangeJoin

Currently it's possible for following
check on V.WriteLanes (which is not really meaningful
during SubRangeJoin) to pass for one half of the pair,
and then fall through to to one of the impossible
or unresolved states. This then fails as inconsistent
on the other half.

During the main range join, the check between V.WriteLanes
and OtherV.ValidLanes must have passed, meaning this
should be a CR_Replace.

Fixes most of the testcases in bugs 39542 and 39602

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@350678 91177308-0d34-0410-b5e6-96231b3b80d8

5 years agoRegisterCoalescer: Defer clearing implicit_def lanes
Matt Arsenault [Tue, 8 Jan 2019 23:10:47 +0000 (23:10 +0000)]
RegisterCoalescer: Defer clearing implicit_def lanes

We can't go back and recover the lanes if it turns
out the implicit_def really can't be erased.

Assume all lanes are valid if an unresolved conflict
is encountered. There aren't any tests where this
seems to matter either way, but this seems like a
safer option.

Fixes bug 39602

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@350676 91177308-0d34-0410-b5e6-96231b3b80d8

5 years ago[InstCombine] remove stale comments; NFC
Sanjay Patel [Tue, 8 Jan 2019 22:52:08 +0000 (22:52 +0000)]
[InstCombine] remove stale comments; NFC

These changed with rL350672.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@350674 91177308-0d34-0410-b5e6-96231b3b80d8

5 years ago[llvm-profdata] add value-cutoff functionality in show command
Rong Xu [Tue, 8 Jan 2019 22:41:48 +0000 (22:41 +0000)]
[llvm-profdata] add value-cutoff functionality in show command

This patch improves llvm-profdata show command:
(1) add -value-cutoff=<N> option: Show only those functions whose max count
    values are greater or equal to N.
(2) add -list-below-cutoff option: Only output names of functions whose max
    count value are below the cutoff.
(3) formats value-profile counts and prints out percentage.

Differential Revision: https://reviews.llvm.org/D56342

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@350673 91177308-0d34-0410-b5e6-96231b3b80d8

5 years ago[InstCombine] canonicalize another raw IR rotate pattern to funnel shift
Sanjay Patel [Tue, 8 Jan 2019 22:39:55 +0000 (22:39 +0000)]
[InstCombine] canonicalize another raw IR rotate pattern to funnel shift

This is matching the equivalent of the DAG expansion,
so it should never end up with worse perf than the
original code even if the target doesn't have a rotate
instruction.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@350672 91177308-0d34-0410-b5e6-96231b3b80d8

5 years ago[PGO] Use SourceFileName rather module name in PGOFuncName
Rong Xu [Tue, 8 Jan 2019 22:39:47 +0000 (22:39 +0000)]
[PGO] Use SourceFileName rather module name in PGOFuncName

In LTO or Thin-lto mode (though linker plugin), the module
names are of temp file names which are different for
different compilations. Using SourceFileName avoids the issue.
This should not change any functionality for current PGO as
all the current callers of getPGOFuncName() is before LTO.

Differential Revision: https://reviews.llvm.org/D56327

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@350671 91177308-0d34-0410-b5e6-96231b3b80d8

5 years ago[PGO] Revert r350579 to fix commit message.
Rong Xu [Tue, 8 Jan 2019 22:37:12 +0000 (22:37 +0000)]
[PGO] Revert r350579 to fix commit message.

Will re-commit it using the correct commit message.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@350670 91177308-0d34-0410-b5e6-96231b3b80d8

5 years ago[WebAssembly] Rename StoreResults to MemIntrinsicResults
Heejin Ahn [Tue, 8 Jan 2019 22:35:18 +0000 (22:35 +0000)]
[WebAssembly] Rename StoreResults to MemIntrinsicResults

Summary:
StoreResults pass does not optimize store instructions anymore because
store instructions don't return results values anymore. Now this pass is
used solely for memory intrinsics, so update the pass name accordingly
and fix outdated pass descriptions as well.

This patch does not change any meaningful behavior, but not marked as
NFC because it changes a comment check line in a test case.

Reviewers: dschuff

Subscribers: mgorny, sbc100, jgravelle-google, sunfiish, llvm-commits

Differential Revision: https://reviews.llvm.org/D56093

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@350669 91177308-0d34-0410-b5e6-96231b3b80d8

5 years ago[PGO] Revert r350442 to fix commit message.
Rong Xu [Tue, 8 Jan 2019 22:33:29 +0000 (22:33 +0000)]
[PGO] Revert r350442 to fix commit message.

Will re-commit it using the correct commit message.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@350667 91177308-0d34-0410-b5e6-96231b3b80d8

5 years ago[AArch64] Adjust the cost model for Exynos
Evandro Menezes [Tue, 8 Jan 2019 22:29:58 +0000 (22:29 +0000)]
[AArch64] Adjust the cost model for Exynos

Improve the modeling of ALU instructions.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@350663 91177308-0d34-0410-b5e6-96231b3b80d8

5 years ago[llvm-mca] Update the Exynos test cases (NFC)
Evandro Menezes [Tue, 8 Jan 2019 22:29:56 +0000 (22:29 +0000)]
[llvm-mca] Update the Exynos test cases (NFC)

Add more entropy to the test cases.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@350662 91177308-0d34-0410-b5e6-96231b3b80d8

5 years ago[llvm-mca] Improve debugging (NFC)
Evandro Menezes [Tue, 8 Jan 2019 22:29:38 +0000 (22:29 +0000)]
[llvm-mca] Improve debugging (NFC)

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@350661 91177308-0d34-0410-b5e6-96231b3b80d8

5 years agoFix go bindings for r350647: missed a function rename
Jorge Gorbe Moya [Tue, 8 Jan 2019 21:45:42 +0000 (21:45 +0000)]
Fix go bindings for r350647: missed a function rename

Differential Revision: https://reviews.llvm.org/D56452

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@350657 91177308-0d34-0410-b5e6-96231b3b80d8

5 years ago[llvm-undname] Add support for demangling msvc's noexcept types.
Zachary Turner [Tue, 8 Jan 2019 21:05:51 +0000 (21:05 +0000)]
[llvm-undname] Add support for demangling msvc's noexcept types.

Starting in C++17, MSVC introduced a new mangling for function
parameters that are themselves noexcept functions.  This patch
makes llvm-undname properly demangle them.

Patch by Zachary Henkel
Differential Revision: https://reviews.llvm.org/D55769

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@350656 91177308-0d34-0410-b5e6-96231b3b80d8

5 years agoDon't write #include "Windows/WindowsSupport.h" from the Windows dir.
Zachary Turner [Tue, 8 Jan 2019 21:05:34 +0000 (21:05 +0000)]
Don't write #include "Windows/WindowsSupport.h" from the Windows dir.

This generates -Wnonportable-include-dir warnings, and doesn't need
to be there.  It seems this was just checked in on accident.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@350655 91177308-0d34-0410-b5e6-96231b3b80d8

5 years agoRevert "Revert "Revert "Resubmit rL345008 "Split MachinePipeliner code into header...
Adrian Prantl [Tue, 8 Jan 2019 21:05:10 +0000 (21:05 +0000)]
Revert "Revert "Revert "Resubmit rL345008 "Split MachinePipeliner code into header and cpp files""""

This reverts commit D56084.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@350654 91177308-0d34-0410-b5e6-96231b3b80d8

5 years agoRevert "Work around a linker error caused by https://reviews.llvm.org/D56084."
Adrian Prantl [Tue, 8 Jan 2019 21:05:08 +0000 (21:05 +0000)]
Revert "Work around a linker error caused by https://reviews.llvm.org/D56084."

This reverts commit r350650

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@350653 91177308-0d34-0410-b5e6-96231b3b80d8

5 years agoWork around a linker error caused by https://reviews.llvm.org/D56084.
Adrian Prantl [Tue, 8 Jan 2019 20:38:22 +0000 (20:38 +0000)]
Work around a linker error caused by https://reviews.llvm.org/D56084.

This unbreaks all bots that build with -DLLVM_ENABLE_MODULES=1

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@350650 91177308-0d34-0410-b5e6-96231b3b80d8

5 years ago[NewPM] Port tsan
Philip Pfaffe [Tue, 8 Jan 2019 19:21:57 +0000 (19:21 +0000)]
[NewPM] Port tsan

A straightforward port of tsan to the new PM, following the same path
as D55647.

Differential Revision: https://reviews.llvm.org/D56433

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@350647 91177308-0d34-0410-b5e6-96231b3b80d8

5 years ago[x86] add tests for PR40243; NFC
Sanjay Patel [Tue, 8 Jan 2019 19:15:21 +0000 (19:15 +0000)]
[x86] add tests for PR40243; NFC

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@350646 91177308-0d34-0410-b5e6-96231b3b80d8

5 years agoRename DIFlagFixedEnum to DIFlagEnumClass. NFC
Paul Robinson [Tue, 8 Jan 2019 17:52:29 +0000 (17:52 +0000)]
Rename DIFlagFixedEnum to DIFlagEnumClass. NFC

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@350641 91177308-0d34-0410-b5e6-96231b3b80d8

5 years ago[UnrollRuntime] Fix domTree failures in multiexit unrolling
Anna Thomas [Tue, 8 Jan 2019 17:16:25 +0000 (17:16 +0000)]
[UnrollRuntime] Fix domTree failures in multiexit unrolling

Summary:
This fixes the IDom for exit blocks and all blocks reachable from the exit blocks, when runtime unrolling under multiexit/exiting case.
We initially had a restrictive check that the IDom is only updated when
it is the header of the loop.
However, we also need to update the IDom to the correct one when the
IDom is any block within the original loop. See added test cases (which
fail dom tree verification without the patch).

Reviewers: reames, mzolotukhin, mkazantsev, hfinkel

Reviewed by: brzycki, kuhar

Subscribers: zzheng, dmgreen, llvm-commits

Differential Revision: https://reviews.llvm.org/D56284

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@350640 91177308-0d34-0410-b5e6-96231b3b80d8

5 years ago[BPF] Fix .BTF.ext reloc type assigment issue
Yonghong Song [Tue, 8 Jan 2019 16:36:06 +0000 (16:36 +0000)]
[BPF] Fix .BTF.ext reloc type assigment issue

Commit f1db33c5c1a9 ("[BPF] Disable relocation for .BTF.ext section")
assigned relocation type R_BPF_NONE if the fixup type
is FK_Data_4 and the symbol is temporary.
The reason is we use FK_Data_4 as a fixup type
for insn offsets in .BTF.ext section.

Just checking whether the symbol is temporary is not enough.
For example, .debug_info may reference some strings whose
fixup is FK_Data_4 with a temporary symbol as well.

To truely reflect the case for .BTF.ext section,
this patch further checks that the section associateed with the symbol
must be SHF_ALLOC and SHF_EXECINSTR, i.e., in the text section.
This fixed the above-mentioned problem.

Signed-off-by: Yonghong Song <yhs@fb.com>
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@350637 91177308-0d34-0410-b5e6-96231b3b80d8

5 years ago[gn build] Update readme
Nico Weber [Tue, 8 Jan 2019 15:19:00 +0000 (15:19 +0000)]
[gn build] Update readme

Differential Revision: https://reviews.llvm.org/D56375

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@350632 91177308-0d34-0410-b5e6-96231b3b80d8

5 years ago[gn build] Make sync_source_lists_from_cmake.py check that all LLVM unittests are...
Nico Weber [Tue, 8 Jan 2019 15:17:19 +0000 (15:17 +0000)]
[gn build] Make sync_source_lists_from_cmake.py check that all LLVM unittests are present

Now that the PowerPC and WebAssembly targets are added, this check passes.

Differential Revision: https://reviews.llvm.org/D56417

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@350631 91177308-0d34-0410-b5e6-96231b3b80d8

5 years ago[MachineVerifier] Include offending register in allocatable live-in error msg.
Florian Hahn [Tue, 8 Jan 2019 15:16:23 +0000 (15:16 +0000)]
[MachineVerifier] Include offending register in allocatable live-in error msg.

This patch adds a convenience report() method for physical registers and
uses it to print the offending register with the 'MBB has allocatable
live-in' error.

Reviewers: MatzeB, rtereshin, dsanders

Reviewed By: dsanders

Differential Revision: https://reviews.llvm.org/D55946

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@350630 91177308-0d34-0410-b5e6-96231b3b80d8

5 years ago[gn build] Add build files for llvm/lib/Target/PowerPC + tests
Nico Weber [Tue, 8 Jan 2019 15:16:14 +0000 (15:16 +0000)]
[gn build] Add build files for llvm/lib/Target/PowerPC + tests

The PowerPC target itself is similar to the X86 target in https://reviews.llvm.org/rL348903
The llvm-exegesis unittests bits are similar to the corresponding AArch64 in https://reviews.llvm.org/rL350499
The whole patch is very similar to the WebAssembly target being added in https://reviews.llvm.org/rL350628

Also add a dep from tools/llvm-exegesis/lib to the AArch64 subdir, which I
failed to do in r350499.

The motivation for this target is solely that it has a unit test and I want to
enable the GN<->CMake unittest syncing check for llvm.

Differential Revision: https://reviews.llvm.org/D56416

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@350629 91177308-0d34-0410-b5e6-96231b3b80d8

5 years ago[gn build] Add build files for llvm/lib/Target/WebAssembly + tests
Nico Weber [Tue, 8 Jan 2019 15:12:42 +0000 (15:12 +0000)]
[gn build] Add build files for llvm/lib/Target/WebAssembly + tests

The WebAssembly target itself is similar to the X86 target in https://reviews.llvm.org/rL348903
The unittests bits are similar to the corresponding AArch64 in https://reviews.llvm.org/rL350499

The motivation for this target is solely that it has a unit test and I want to
enable the GN<->CMake unittest syncing check for llvm. (After this, only the
PowerPC target is needed and I can turn it on.)

Differential Revision: https://reviews.llvm.org/D56374

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@350628 91177308-0d34-0410-b5e6-96231b3b80d8

5 years ago[GlobalISel] Fix choice of instruction selector for AArch64 at -O0 with -global-isel=0
Petr Pavlu [Tue, 8 Jan 2019 14:19:06 +0000 (14:19 +0000)]
[GlobalISel] Fix choice of instruction selector for AArch64 at -O0 with -global-isel=0

Commit rL347861 introduced an unintentional change in the behaviour when
compiling for AArch64 at -O0 with -global-isel=0. Previously, explicitly
disabling GlobalISel resulted in using FastISel but an updated condition
in the commit changed it to using SelectionDAG. The patch fixes this
condition and slightly better organizes the code that chooses the
instruction selector.

Fixes PR40131.

Differential Revision: https://reviews.llvm.org/D56266

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@350626 91177308-0d34-0410-b5e6-96231b3b80d8

5 years ago[DA][NewPM] Add a printerpass and port the testsuite
Philip Pfaffe [Tue, 8 Jan 2019 14:06:58 +0000 (14:06 +0000)]
[DA][NewPM] Add a printerpass and port the testsuite

The new-pm version of DA is untested. Testing requires a printer, so
add that and use it in the existing DA tests.

Differential Revision: https://reviews.llvm.org/D56386

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@350624 91177308-0d34-0410-b5e6-96231b3b80d8

5 years ago[X86][Darwin] Emit compact-unwind for register-sized stack adjustments
Francis Visoiu Mistrih [Tue, 8 Jan 2019 13:53:15 +0000 (13:53 +0000)]
[X86][Darwin] Emit compact-unwind for register-sized stack adjustments

For stack frames on the size of a register in x86, a code size optimization
emits "push rax/eax" instead of "sub" for stack allocation. For example:

foo:
  .cfi_startproc
BB#0:
  pushq %rax
Ltmp0:
  .cfi_def_cfa_offset 16
  ...
  .cfi_endproc

However, we are falling back to DWARF in this case because we cannot
encode %rax as a saved register.

This requirement is wrong, since we don't care about the contents of
%rax, it is the equivalent of a sub.

In order to specify that we care about the contents of %rax, we would
need a .cfi_offset %rax, <offset>.

It's also overzealous in the case where there are pushes for callee saved
registers followed by a "push rax/eax" instead of "sub", in which case we should
also be able to encode the callee saved regs and everything else using compact
unwind.

Patch authored by Bruno Cardoso Lopes.

Differential Revision: https://reviews.llvm.org/D13793

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@350623 91177308-0d34-0410-b5e6-96231b3b80d8

5 years agoRevert "Revert "Resubmit rL345008 "Split MachinePipeliner code into header and cpp...
Lama Saba [Tue, 8 Jan 2019 13:30:36 +0000 (13:30 +0000)]
Revert "Revert "Resubmit rL345008 "Split MachinePipeliner code into header and cpp files"""

This reverts commit rL350497
reported remaining issues seem to be unrelated to modules or this change.
more info: https://reviews.llvm.org/D56084

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@350621 91177308-0d34-0410-b5e6-96231b3b80d8

5 years agoAArch64: avoid splitting vector truncating stores.
Tim Northover [Tue, 8 Jan 2019 13:30:27 +0000 (13:30 +0000)]
AArch64: avoid splitting vector truncating stores.

We have code to split vector splats (of zero and non-zero) for performance
reasons, but it ignores the fact that a store might be truncating.

Actually, truncating stores are formed for vNi8 and vNi16 types. Since the
truncation is from a legal type, the size of the store is always <= 64-bits and
so they don't actually benefit from being split up anyway, so this patch just
disables that transformation.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@350620 91177308-0d34-0410-b5e6-96231b3b80d8

5 years ago[GlobalISel] Fix unused variable warning in Release builds.
Benjamin Kramer [Tue, 8 Jan 2019 12:54:26 +0000 (12:54 +0000)]
[GlobalISel] Fix unused variable warning in Release builds.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@350618 91177308-0d34-0410-b5e6-96231b3b80d8

5 years ago[llvm-readobj] Don't print '@' at end of unversioned dynsym names
James Henderson [Tue, 8 Jan 2019 10:58:05 +0000 (10:58 +0000)]
[llvm-readobj] Don't print '@' at end of unversioned dynsym names

This fixes https://bugs.llvm.org/show_bug.cgi?id=40097. The problem was
caused by a regression in r188022.

See also r350614.

Reviewed by: rupprecht, mstorsjo, Higuoxing, jakehehrlich

Differential Revision: https://reviews.llvm.org/D56319

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@350615 91177308-0d34-0410-b5e6-96231b3b80d8

5 years ago[ARM] Add missing patterns for DSP muls
Sam Parker [Tue, 8 Jan 2019 10:12:36 +0000 (10:12 +0000)]
[ARM] Add missing patterns for DSP muls

Using a PatLeaf for sext_16_node allowed matching smulbb and smlabb
instructions once the operands had been sign extended. But we also
need to use sext_inreg operands along with sext_16_node to catch a
few more cases that enable use to remove the unnecessary sxth.

Differential Revision: https://reviews.llvm.org/D55992

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@350613 91177308-0d34-0410-b5e6-96231b3b80d8

5 years agoAMDGPU/GlobalISel: Introduce vcc reg bank
Matt Arsenault [Tue, 8 Jan 2019 06:30:53 +0000 (06:30 +0000)]
AMDGPU/GlobalISel: Introduce vcc reg bank

I'm not entirely sure this is the correct thing
to do with the global isel philosophy, but I think
this is necessary to handle how differently SGPRs
are used normally vs. from a condition.

For example, it makes sense to allow a copy
from a VGPR to an SGPR, but it makes no sense
to allow a copy from VGPRs to SGPRs used as
select mask.

This avoids regbankselecting strange code with
a truncate feeding directly into a condition field.
Now a copy is forced from sgpr(s1) to vcc, which is
more sensible to handle.

Some of these issues could probably avoided with making enough
operations resulting in i1 illegal. I think we can't avoid
this register bank for legality.

For example, an i1 and where one source is from a truncate, and
one source is a compare needs some kind of copy inserted to
make sure both are in condition registers.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@350611 91177308-0d34-0410-b5e6-96231b3b80d8

5 years ago[WebAssembly] Massive instruction renaming
Thomas Lively [Tue, 8 Jan 2019 06:25:55 +0000 (06:25 +0000)]
[WebAssembly] Massive instruction renaming

Summary:
An automated renaming of all the instructions listed at
https://github.com/WebAssembly/spec/issues/884#issuecomment-426433329
as well as some similarly-named identifiers.

Reviewers: aheejin, dschuff, aardappel

Subscribers: sbc100, jgravelle-google, eraman, sunfish, jfb, llvm-commits

Differential Revision: https://reviews.llvm.org/D56338

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@350609 91177308-0d34-0410-b5e6-96231b3b80d8

5 years ago[LLVM-C] Allow For Creating a BasicBlock without a Parent Function
Robert Widmann [Tue, 8 Jan 2019 06:24:19 +0000 (06:24 +0000)]
[LLVM-C] Allow For Creating a BasicBlock without a Parent Function

Summary: Add a utility function for creating a basic block without a parent function.  A useful operation for compilers that need to synthesize and conditionally insert code without having to bother with appending and immediately unlinking a block.

Reviewers: whitequark, deadalnix

Reviewed By: whitequark

Subscribers: llvm-commits

Differential Revision: https://reviews.llvm.org/D56279

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@350608 91177308-0d34-0410-b5e6-96231b3b80d8

5 years ago[LLVM-C] Allow Specifying Signedness in Int Cast
Robert Widmann [Tue, 8 Jan 2019 06:23:22 +0000 (06:23 +0000)]
[LLVM-C] Allow Specifying Signedness in Int Cast

Summary: Fix an old outstanding problem with the int cast builder binding always assuming the cast is signed by introducing a new LLVMBuildIntCast2 operation and deprecating the old prototype.

Reviewers: whitequark, deadalnix

Reviewed By: whitequark

Subscribers: llvm-commits

Differential Revision: https://reviews.llvm.org/D56280

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@350607 91177308-0d34-0410-b5e6-96231b3b80d8

5 years ago[MC] [AArch64] Support resolving signed fixups for :abs_g0_s: etc.
Mandeep Singh Grang [Tue, 8 Jan 2019 04:48:00 +0000 (04:48 +0000)]
[MC] [AArch64] Support resolving signed fixups for :abs_g0_s: etc.

Summary: This patch is a follow-up to D55896.

Reviewers: efriedma, mstorsjo

Reviewed By: efriedma

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

Differential Revision: https://reviews.llvm.org/D56029

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@350606 91177308-0d34-0410-b5e6-96231b3b80d8

5 years ago[NFC] Remove empty line as a test commit.
Chris Kennelly [Tue, 8 Jan 2019 04:04:51 +0000 (04:04 +0000)]
[NFC] Remove empty line as a test commit.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@350605 91177308-0d34-0410-b5e6-96231b3b80d8

5 years agogn build: Stop passing -o to ar.
Peter Collingbourne [Tue, 8 Jan 2019 04:00:22 +0000 (04:00 +0000)]
gn build: Stop passing -o to ar.

The -o flag means something different to ar than what appears to be
intended here. Also, llvm-ar doesn't accept the flag in this position.

Differential Revision: https://reviews.llvm.org/D56426

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@350604 91177308-0d34-0410-b5e6-96231b3b80d8

5 years agogn build: Merge r350580.
Peter Collingbourne [Tue, 8 Jan 2019 01:46:57 +0000 (01:46 +0000)]
gn build: Merge r350580.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@350600 91177308-0d34-0410-b5e6-96231b3b80d8

5 years agoAMDGPU/GlobalISel: Legalize concat_vectors
Matt Arsenault [Tue, 8 Jan 2019 01:30:02 +0000 (01:30 +0000)]
AMDGPU/GlobalISel: Legalize concat_vectors

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@350598 91177308-0d34-0410-b5e6-96231b3b80d8

5 years agoFix typos
Matt Arsenault [Tue, 8 Jan 2019 01:25:47 +0000 (01:25 +0000)]
Fix typos

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@350597 91177308-0d34-0410-b5e6-96231b3b80d8

5 years ago[WebAssembly] Move CFG-changing passes before RegStackify
Heejin Ahn [Tue, 8 Jan 2019 01:25:12 +0000 (01:25 +0000)]
[WebAssembly] Move CFG-changing passes before RegStackify

Summary:
FixIrreducibleControlFlow and LateEHPrepare both possibly modify CFG and
create new registers. There seems to be no reason these passes go after
register-related optimization passes (PrepareForLiveIntervals,
OptimizeLiveIntervals, StoreResults, RegStackify, and RegColoring), and
this also possibly create new optimization opportunities. I think we
should put all current and future optimization passes before RegStackify
(and related passes) unless there's a reason not to.

Reviewers: kripken

Subscribers: dschuff, sbc100, sunfish, jgravelle-google, llvm-commits

Differential Revision: https://reviews.llvm.org/D56356

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@350596 91177308-0d34-0410-b5e6-96231b3b80d8

5 years agoRegBankSelect: Fix copy insertion point for terminators
Matt Arsenault [Tue, 8 Jan 2019 01:22:47 +0000 (01:22 +0000)]
RegBankSelect: Fix copy insertion point for terminators

If a copy was needed to handle the condition of brcond, it was being
inserted before the defining instruction. Add tests for iterator edge
cases.

I find the existing code here suspect for the case where it's looking
for terminators that modify the register. It's going to insert a copy
in the middle of the terminators, which isn't allowed (it might be
necessary to have a COPY_terminator if anybody actually needs this).

Also legalize brcond for AMDGPU.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@350595 91177308-0d34-0410-b5e6-96231b3b80d8

5 years ago[WebAssembly] Use 'I' multiclass template for br_table (NFC)
Heejin Ahn [Tue, 8 Jan 2019 01:15:15 +0000 (01:15 +0000)]
[WebAssembly] Use 'I' multiclass template for br_table (NFC)

Summary:
We don't need to explicitly use `NI` anymore because we now don't use
`let` statements within the definitions.

Reviewers: aardappel

Subscribers: dschuff, sbc100, jgravelle-google, sunfish, llvm-commits

Differential Revision: https://reviews.llvm.org/D56376

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@350594 91177308-0d34-0410-b5e6-96231b3b80d8

5 years agoAMDGPU/GlobalISel: Disallow VGPR->SCC copies
Matt Arsenault [Tue, 8 Jan 2019 01:13:20 +0000 (01:13 +0000)]
AMDGPU/GlobalISel: Disallow VGPR->SCC copies

This fixes using scalar adds when only the carry in is a VGPR
using greedy regbankselect.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@350593 91177308-0d34-0410-b5e6-96231b3b80d8

5 years agoAMDGPU/GlobalISel: RegBankSelect for carry-in
Matt Arsenault [Tue, 8 Jan 2019 01:09:09 +0000 (01:09 +0000)]
AMDGPU/GlobalISel: RegBankSelect for carry-in

I'm not sure we should be allowing the truncate
to s1 for the inputs. It may be necessary to
create a new VCC reg bank.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@350592 91177308-0d34-0410-b5e6-96231b3b80d8

5 years ago[dsymutil] Fix assertion triggered by empty address range.
Jonas Devlieghere [Tue, 8 Jan 2019 01:08:09 +0000 (01:08 +0000)]
[dsymutil] Fix assertion triggered by empty address range.

An assertion was hit when running dsymutil on a gcc generated binary
that contained an empty address range. Address ranges are stored in an
interval map of half open intervals. Since the interval is empty and
therefore meaningless, we simply don't add it to the map.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@350591 91177308-0d34-0410-b5e6-96231b3b80d8

5 years agoAMDGPU/GlobalISel: RegBankSelect for add/sub with carry out
Matt Arsenault [Tue, 8 Jan 2019 01:03:58 +0000 (01:03 +0000)]
AMDGPU/GlobalISel: RegBankSelect for add/sub with carry out

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@350589 91177308-0d34-0410-b5e6-96231b3b80d8

5 years agoAMDGPU/GlobalISel: InstrMapping for G_UNMERGE_VALUES
Matt Arsenault [Tue, 8 Jan 2019 00:46:19 +0000 (00:46 +0000)]
AMDGPU/GlobalISel: InstrMapping for G_UNMERGE_VALUES

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@350588 91177308-0d34-0410-b5e6-96231b3b80d8

5 years agofix comment typo - NFC
Chen Zheng [Tue, 8 Jan 2019 00:40:01 +0000 (00:40 +0000)]
fix comment typo - NFC

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@350587 91177308-0d34-0410-b5e6-96231b3b80d8

5 years ago[RegisterCoalescer] dst register's live interval needs to be updated when
Wei Mi [Tue, 8 Jan 2019 00:26:11 +0000 (00:26 +0000)]
[RegisterCoalescer] dst register's live interval needs to be updated when
merging a src register in ToBeUpdated set.

This is to fix PR40061 related with https://reviews.llvm.org/rL339035.

In https://reviews.llvm.org/rL339035, live interval of source pseudo register
in rematerialized copy may be saved in ToBeUpdated set and its update may be
postponed.

In PR40061, %t2 = %t1 is rematerialized and %t1 is added into toBeUpdated set
to postpone its live interval update. After the rematerialization, the live
interval of %t1 is larger than necessary. Then %t1 is merged into %t3 and %t1
gets removed. After the merge, %t3 contains live interval larger than necessary.
Because %t3 is not in toBeUpdated set, its live interval is not updated after
register coalescing and it will break some assumption in regalloc.

The patch requires the live interval of destination register in a merge to be
updated if the source register is in ToBeUpdated.

Differential revision: https://reviews.llvm.org/D55867

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@350586 91177308-0d34-0410-b5e6-96231b3b80d8

5 years ago[dsymutil] Upstream unobfuscation logic.
Jonas Devlieghere [Mon, 7 Jan 2019 23:27:25 +0000 (23:27 +0000)]
[dsymutil] Upstream unobfuscation logic.

The unobufscation support for BCSymbolMaps was the last piece of code
that hasn't been upstreamed yet. This patch contains a reworked version
of the existing code and relevant tests.

Differential revision: https://reviews.llvm.org/D56346

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@350580 91177308-0d34-0410-b5e6-96231b3b80d8

5 years ago[PGO] Use SourceFileName rather module name in PGOFuncName
Rong Xu [Mon, 7 Jan 2019 23:25:56 +0000 (23:25 +0000)]
[PGO] Use SourceFileName rather module name in PGOFuncName

In LTO or Thin-lto mode (though linker plugin), the module
names are of temp file names which are different for
different compilations. Using SourceFileName avoids the issue.
This should not change any functionality for current PGO as
all the current callers of getPGOFuncName() is before LTO.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@350579 91177308-0d34-0410-b5e6-96231b3b80d8

5 years ago[Verifier] Reject invalid type for DILocalVariable.
Davide Italiano [Mon, 7 Jan 2019 23:09:09 +0000 (23:09 +0000)]
[Verifier] Reject invalid type for DILocalVariable.

Reviewers: aprantl

Subscribers: hiraditya, llvm-commits

Differential Revision: https://reviews.llvm.org/D56414

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@350578 91177308-0d34-0410-b5e6-96231b3b80d8

5 years ago[ValueTracking] Adjust comment in test
Michael Ferguson [Mon, 7 Jan 2019 21:02:22 +0000 (21:02 +0000)]
[ValueTracking] Adjust comment in test

Adjusts a comment in this test to verify commit access.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@350569 91177308-0d34-0410-b5e6-96231b3b80d8

5 years agoRecommit r350554 "[X86] Remove AVX512VBMI2 concat and shift intrinsics. Replace with...
Craig Topper [Mon, 7 Jan 2019 21:00:32 +0000 (21:00 +0000)]
Recommit r350554 "[X86] Remove AVX512VBMI2 concat and shift intrinsics. Replace with target independent funnel shift intrinsics."

The MSVC limit we hit on AutoUpgrade.cpp has been worked around for now.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@350567 91177308-0d34-0410-b5e6-96231b3b80d8

5 years ago[ObjectYAML] [COFF] Support multiple symbols with the same name
Martin Storsjo [Mon, 7 Jan 2019 20:55:33 +0000 (20:55 +0000)]
[ObjectYAML] [COFF] Support multiple symbols with the same name

Differential Revision: https://reviews.llvm.org/D56294

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@350566 91177308-0d34-0410-b5e6-96231b3b80d8

5 years ago[X86][AutoUpgrade] Make some tweaks to reduce the number of nested if/else in the...
Craig Topper [Mon, 7 Jan 2019 20:13:45 +0000 (20:13 +0000)]
[X86][AutoUpgrade] Make some tweaks to reduce the number of nested if/else in the intrinsic upgrade code to avoid an MSVC compiler limit.

MSVC has a nesting limit of around 110-130. An if/else if/else if counts against this next level. The autoupgrade code consists a long chain of these checking matches against strings.

This commit moves some code to a helper function to move out a large if/else chain that was inside of one of the blocks into a separate function. There are more of these we could move or we could change some to lookup tables.

I've also merged together a few similar blocks in the outer chain. This should buy us some margin for a little bit.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@350564 91177308-0d34-0410-b5e6-96231b3b80d8

5 years agoRevert r350554 "[X86] Remove AVX512VBMI2 concat and shift intrinsics. Replace with...
Craig Topper [Mon, 7 Jan 2019 19:39:05 +0000 (19:39 +0000)]
Revert r350554 "[X86] Remove AVX512VBMI2 concat and shift intrinsics. Replace with target independent funnel shift intrinsics."

The AutoUpgrade.cpp if/else cascade hit an MSVC limit again.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@350562 91177308-0d34-0410-b5e6-96231b3b80d8

5 years ago[MemorySSA] Add SkipSelfWalker.
Alina Sbirlea [Mon, 7 Jan 2019 19:38:47 +0000 (19:38 +0000)]
[MemorySSA] Add SkipSelfWalker.

Summary: Add implementation of SkipSelfWalker.

Reviewers: george.burgess.iv

Subscribers: sanjoy, jlebar, Prazek, llvm-commits

Differential Revision: https://reviews.llvm.org/D56285

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@350561 91177308-0d34-0410-b5e6-96231b3b80d8

5 years ago[TargetLowering][AMDGPU] Remove the SimplifyDemandedBits function that takes a User...
Craig Topper [Mon, 7 Jan 2019 19:30:43 +0000 (19:30 +0000)]
[TargetLowering][AMDGPU] Remove the SimplifyDemandedBits function that takes a User and OpIdx. Stop using it in AMDGPU target for simplifyI24.

As we saw in D56057 when we tried to use this function on X86, it's unsafe. It allows the operand node to have multiple users, but doesn't prevent recursing past the first node when it does have multiple users. This can cause other simplifications earlier in the graph without regard to what bits are needed by the other users of the first node. Ideally all we should do to the first node if it has multiple uses is bypass it when its not needed by the user we started from. Doing any other transformation that SimplifyDemandedBits can do like turning ZEXT/SEXT into AEXT would result in an increase in instructions.

Fortunately, we already have a function that can do just that, GetDemandedBits. It will only make transformations that involve bypassing a node.

This patch changes AMDGPU's simplifyI24, to use a combination of GetDemandedBits to handle the multiple use simplifications. And then uses the regular SimplifyDemandedBits on each operand to handle simplifications allowed when the operand only has a single use. Unfortunately, GetDemandedBits simplifies constants more aggressively than SimplifyDemandedBits. This caused the -7 constant in the changed test to be simplified to remove the upper bits. I had to modify computeKnownBits to account for this by ignoring the upper 8 bits of the input.

Differential Revision: https://reviews.llvm.org/D56087

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@350560 91177308-0d34-0410-b5e6-96231b3b80d8

5 years ago[MemorySSA] Refactor CachingWalker.
Alina Sbirlea [Mon, 7 Jan 2019 19:22:37 +0000 (19:22 +0000)]
[MemorySSA] Refactor CachingWalker.

Summary:
Refactor caching walker to make creating a walker that skips the
starting access strightforward.

Reviewers: george.burgess.iv

Subscribers: sanjoy, jlebar, Prazek, llvm-commits, jfb

Differential Revision: https://reviews.llvm.org/D55957

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@350558 91177308-0d34-0410-b5e6-96231b3b80d8

5 years ago[X86] Remove AVX512VBMI2 concat and shift intrinsics. Replace with target independent...
Craig Topper [Mon, 7 Jan 2019 19:10:12 +0000 (19:10 +0000)]
[X86] Remove AVX512VBMI2 concat and shift intrinsics. Replace with target independent funnel shift intrinsics.

Differential Revision: https://reviews.llvm.org/D56377

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@350554 91177308-0d34-0410-b5e6-96231b3b80d8

5 years ago[ARM] ComputeKnownBits to handle extract vectors
Diogo N. Sampaio [Mon, 7 Jan 2019 19:01:47 +0000 (19:01 +0000)]
[ARM] ComputeKnownBits to handle extract vectors

This patch adds the sign/zero extension done by
vgetlane to ARM computeKnownBitsForTargetNode.

Differential revision: https://reviews.llvm.org/D56098

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@350553 91177308-0d34-0410-b5e6-96231b3b80d8

5 years ago[MemorySSA] Extend the clobber walker with the option to skip the starting access.
Alina Sbirlea [Mon, 7 Jan 2019 18:40:27 +0000 (18:40 +0000)]
[MemorySSA] Extend the clobber walker with the option to skip the starting access.

Summary:
The option enables loop transformations to hoist accesses that do not
have clobbers in the loop. If the clobber queries skips the starting
access, the result may be outside the loop instead of the header Phi.

Adding the walker that uses this option in a separate patch.

Reviewers: george.burgess.iv

Subscribers: sanjoy, jlebar, Prazek, llvm-commits

Differential Revision: https://reviews.llvm.org/D55944

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@350551 91177308-0d34-0410-b5e6-96231b3b80d8

5 years agoRevert "[DemandedBits] Use SetVector for Worklist"
Nikita Popov [Mon, 7 Jan 2019 18:15:11 +0000 (18:15 +0000)]
Revert "[DemandedBits] Use SetVector for Worklist"

This reverts commit r350547.

Seeing assertion failures on clang tests.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@350549 91177308-0d34-0410-b5e6-96231b3b80d8

5 years ago[X86] Add OR(AND(X,C),AND(Y,~C)) bit select tests
Simon Pilgrim [Mon, 7 Jan 2019 18:07:56 +0000 (18:07 +0000)]
[X86] Add OR(AND(X,C),AND(Y,~C)) bit select tests

Based off work for D55935

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@350548 91177308-0d34-0410-b5e6-96231b3b80d8