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6 years ago[InstSimplify] fix folds for (0.0 - X) + X --> 0 (PR27151)
Sanjay Patel [Wed, 14 Mar 2018 21:23:27 +0000 (21:23 +0000)]
[InstSimplify] fix folds for (0.0 - X) + X --> 0 (PR27151)

As shown in:
https://bugs.llvm.org/show_bug.cgi?id=27151
...the existing fold could miscompile when X is NaN.

The fold was also dependent on 'ninf' but that's not necessary.

From IEEE-754 (with default rounding which we can assume for these opcodes):
"When the sum of two operands with opposite signs (or the difference of two
operands with like signs) is exactly zero, the sign of that sum (or difference)
shall be +0...However, x + x = x − (−x) retains the same sign as x even when
x is zero."

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@327575 91177308-0d34-0410-b5e6-96231b3b80d8

6 years ago[X86] Add haswell testing for PR35635 as well.
Simon Pilgrim [Wed, 14 Mar 2018 21:03:09 +0000 (21:03 +0000)]
[X86] Add haswell testing for PR35635 as well.

To improve complete model testing for schedulers for instructions with multiple results.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@327572 91177308-0d34-0410-b5e6-96231b3b80d8

6 years ago[AArch64] Emit CSR loads in the same order as stores
Francis Visoiu Mistrih [Wed, 14 Mar 2018 20:34:03 +0000 (20:34 +0000)]
[AArch64] Emit CSR loads in the same order as stores

Optionally allow the order of restoring the callee-saved registers in the
epilogue to be reversed.

The flag -reverse-csr-restore-seq generates the following code:

```
stp     x26, x25, [sp, #-64]!
stp     x24, x23, [sp, #16]
stp     x22, x21, [sp, #32]
stp     x20, x19, [sp, #48]

; [..]

ldp     x24, x23, [sp, #16]
ldp     x22, x21, [sp, #32]
ldp     x20, x19, [sp, #48]
ldp     x26, x25, [sp], #64
ret
```

Note how the CSRs are restored in the same order as they are saved.

One exception to this rule is the last `ldp`, which allows us to merge
the stack adjustment and the ldp into a post-index ldp. This is done by
first generating:

ldp x26, x27, [sp]
add sp, sp, #64

which gets merged by the arm64 load store optimizer into

ldp x26, x25, [sp], #64

The flag is disabled by default.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@327569 91177308-0d34-0410-b5e6-96231b3b80d8

6 years ago[ORC] Switch from shared_ptr to unique_ptr for addModule methods.
Lang Hames [Wed, 14 Mar 2018 20:29:45 +0000 (20:29 +0000)]
[ORC] Switch from shared_ptr to unique_ptr for addModule methods.

Layer implementations typically mutate module state, and this is better
reflected by having layers own the Module they are operating on.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@327566 91177308-0d34-0410-b5e6-96231b3b80d8

6 years ago[UpdateTestChecks] Handle IR variables with a '-' in the name
Alexander Richardson [Wed, 14 Mar 2018 20:28:53 +0000 (20:28 +0000)]
[UpdateTestChecks] Handle IR variables with a '-' in the name

Summary:
I noticed that clang will emit variables such as %indirect-arg-temp when
running update_cc1_test_checks.py and therefore update_cc1_test_checks.py
wasn't adding FileCheck captures for those variables.

Reviewers: MaskRay

Reviewed By: MaskRay

Subscribers: llvm-commits

Differential Revision: https://reviews.llvm.org/D44459

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@327564 91177308-0d34-0410-b5e6-96231b3b80d8

6 years ago[MC] Always emit relocations for same-section function references
Reid Kleckner [Wed, 14 Mar 2018 19:24:32 +0000 (19:24 +0000)]
[MC] Always emit relocations for same-section function references

Summary:
We already emit relocations in this case when the "incremental linker
compatible" flag is set, but it turns out these relocations are also
required for /guard:cf. Now that we have two use cases for this
behavior, let's make it unconditional to try to keep things simple.

We never hit this problem in Clang because it always sets the
"incremental linker compatible" flag when targeting MSVC. However, LLD
LTO doesn't set this flag, so we'd get CFG failures at runtime when
using ThinLTO and /guard:cf. We probably don't want LLD LTO to set the
"incremental linker compatible" assembler flag, since this has nothing
to do with incremental linking, and we don't need to timestamp LTO
temporary objects.

Fixes PR36624.

Reviewers: inglorion, espindola, majnemer

Subscribers: mehdi_amini, llvm-commits, hiraditya

Differential Revision: https://reviews.llvm.org/D44485

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@327557 91177308-0d34-0410-b5e6-96231b3b80d8

6 years ago[InstSimplify] add tests to show missing/broken fadd folds (PR27151, PR26958); NFC
Sanjay Patel [Wed, 14 Mar 2018 18:52:40 +0000 (18:52 +0000)]
[InstSimplify] add tests to show missing/broken fadd folds (PR27151, PR26958); NFC

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@327554 91177308-0d34-0410-b5e6-96231b3b80d8

6 years ago[InstSimplify] regenerate checks; NFC
Sanjay Patel [Wed, 14 Mar 2018 18:49:57 +0000 (18:49 +0000)]
[InstSimplify] regenerate checks; NFC

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@327553 91177308-0d34-0410-b5e6-96231b3b80d8

6 years ago[LLVM-C] [bindings/go] Add C and Golang bindings for COMDAT
Reid Kleckner [Wed, 14 Mar 2018 18:33:53 +0000 (18:33 +0000)]
[LLVM-C] [bindings/go] Add C and Golang bindings for COMDAT

Patch by Ben Clayton

Differential Revision: https://reviews.llvm.org/D44086

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@327551 91177308-0d34-0410-b5e6-96231b3b80d8

6 years ago[InstSimplify] [NFC] cast-unsigned-icmp-cmp-0.ll - don't run instcombine
Roman Lebedev [Wed, 14 Mar 2018 17:59:12 +0000 (17:59 +0000)]
[InstSimplify] [NFC] cast-unsigned-icmp-cmp-0.ll - don't run instcombine

As disscussed in post-commit review of D44421, there is simply
no reason to run instcombine on this testcase.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@327541 91177308-0d34-0410-b5e6-96231b3b80d8

6 years ago[X86] Add back fast-isel code for handling i8 shifts.
Craig Topper [Wed, 14 Mar 2018 17:57:19 +0000 (17:57 +0000)]
[X86] Add back fast-isel code for handling i8 shifts.

I removed this in r316797 because the coverage report showed no coverage and I thought it should have been handled by the auto generated table. I now see that there is code that bypasses the table if the shift amount is out of bounds.

This adds back the code. We'll codegen out of bounds i8 shifts to effectively (amount & 0x1f). The 0x1f is a strange quirk of x86 that shift amounts are always masked to 5-bits(except 64-bits). So if the masked value is still out bounds the result will be 0.

Fixes PR36731.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@327540 91177308-0d34-0410-b5e6-96231b3b80d8

6 years agoFix LLVM IR check lines in utils/update_cc_test_checks.py
Fangrui Song [Wed, 14 Mar 2018 17:47:07 +0000 (17:47 +0000)]
Fix LLVM IR check lines in utils/update_cc_test_checks.py

Reviewers: arichardson

Subscribers: llvm-commits

Differential Revision: https://reviews.llvm.org/D44400

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@327538 91177308-0d34-0410-b5e6-96231b3b80d8

6 years ago[InstSimplify] [NFC] Add tests for peeking through unsigned FP casts for sign compare...
Roman Lebedev [Wed, 14 Mar 2018 17:31:08 +0000 (17:31 +0000)]
[InstSimplify] [NFC] Add tests for peeking through unsigned FP casts for sign compares (PR36682)

Summary:
This pattern came up in PR36682 / D44390
https://bugs.llvm.org/show_bug.cgi?id=36682
https://reviews.llvm.org/D44390
https://godbolt.org/g/oKvT5H

Looking at the IR pattern in question, as per [[ https://github.com/rutgers-apl/alive-nj | alive-nj ]], for all the type combinations i checked
(input: `i16`, `i32`, `i64`; intermediate: `half`/`i16`, `float`/`i32`, `double`/`i64`)
for the following `icmp` comparisons the `uitofp`+`bitcast`+`icmp` can be evaluated to a boolean:
* `slt 0`
* `sgt -1`
I did not check vectors, but i'm guessing it's the same there.
{F5889242}

Thus all these cases are in the testcase (along with the vector variant with additional `undef` element in the middle).
There are no negative patterns here (unless alive-nj lied/is broken), all of these should be optimized.

Reviewers: spatel, majnemer, efriedma, arsenm

Reviewed By: spatel

Subscribers: wdng, llvm-commits

Differential Revision: https://reviews.llvm.org/D44421

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@327535 91177308-0d34-0410-b5e6-96231b3b80d8

6 years ago[InstCombine] [NFC] Add tests for peeking through unsigned FP casts for zero-equality...
Roman Lebedev [Wed, 14 Mar 2018 17:31:03 +0000 (17:31 +0000)]
[InstCombine] [NFC] Add tests for peeking through unsigned FP casts for zero-equality compares (PR36682)

Summary:
This pattern came up in PR36682 / D44390
https://bugs.llvm.org/show_bug.cgi?id=36682
https://reviews.llvm.org/D44390
https://godbolt.org/g/oKvT5H

Looking at the IR pattern in question, as per [[ https://github.com/rutgers-apl/alive-nj | alive-nj ]], for all the type combinations i checked
(input: `i16`, `i32`, `i64`; intermediate: `half`/`i16`, `float`/`i32`, `double`/`i64`)
for the following `icmp` comparisons the `uitofp`+`bitcast` can be dropped:
* `eq 0`
* `ne 0`
I did not check vectors, but i'm guessing it's the same there.
{F5889189}

Thus all these cases are in the testcase (along with the vector variant with additional `undef` element in the middle).
There are no negative patterns here (unless alive-nj lied/is broken), all of these should be optimized.

Generated with
{F5889196}

Reviewers: spatel, majnemer, efriedma, arsenm

Reviewed By: spatel

Subscribers: wdng, llvm-commits

Differential Revision: https://reviews.llvm.org/D44416

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@327534 91177308-0d34-0410-b5e6-96231b3b80d8

6 years ago[AArch64] Keep track of MIFlags in the LoadStoreOptimizer
Francis Visoiu Mistrih [Wed, 14 Mar 2018 17:10:58 +0000 (17:10 +0000)]
[AArch64] Keep track of MIFlags in the LoadStoreOptimizer

Merging:

* $x26, $x25 = frame-setup LDPXi $sp, 0
* $sp = frame-destroy ADDXri $sp, 64, 0

into an LDPXpost should preserve the flags from both instructions as
following:

* frame-setup frame-destroy LDPXpost

Differential Revision: https://reviews.llvm.org/D44446

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@327533 91177308-0d34-0410-b5e6-96231b3b80d8

6 years ago[X86] Teach X86TargetLowering::targetShrinkDemandedConstant to set non-demanded bits...
Craig Topper [Wed, 14 Mar 2018 16:55:15 +0000 (16:55 +0000)]
[X86] Teach X86TargetLowering::targetShrinkDemandedConstant to set non-demanded bits if it helps created an and mask that can be matched as a zero extend.

I had to modify the bswap recognition to allow unshrunk masks to make this work.

Fixes PR36689.

Differential Revision: https://reviews.llvm.org/D44442

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@327530 91177308-0d34-0410-b5e6-96231b3b80d8

6 years ago[WebAssembly] Add DenseMap traits and operator== for Wasm type structs
Nicholas Wilson [Wed, 14 Mar 2018 15:58:03 +0000 (15:58 +0000)]
[WebAssembly] Add DenseMap traits and operator== for Wasm type structs

Differential Revision: https://reviews.llvm.org/D44303

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@327526 91177308-0d34-0410-b5e6-96231b3b80d8

6 years ago[X86][AVX] Use WriteFShuffleLd for broadcast reg-mem instructions
Simon Pilgrim [Wed, 14 Mar 2018 15:47:08 +0000 (15:47 +0000)]
[X86][AVX] Use WriteFShuffleLd for broadcast reg-mem instructions

They shouldn't be treated as pure loads.

Found while investigating D44428

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@327524 91177308-0d34-0410-b5e6-96231b3b80d8

6 years ago[WebAssembly] Identify COMDATs by index rather than string. NFC
Nicholas Wilson [Wed, 14 Mar 2018 15:44:45 +0000 (15:44 +0000)]
[WebAssembly] Identify COMDATs by index rather than string. NFC

This will enable an optimisation in LLD.

Differential Revision: https://reviews.llvm.org/D44343

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@327522 91177308-0d34-0410-b5e6-96231b3b80d8

6 years agoSjLjEHPrepare: Don't reg-to-mem swifterror values
Arnold Schwaighofer [Wed, 14 Mar 2018 15:44:07 +0000 (15:44 +0000)]
SjLjEHPrepare: Don't reg-to-mem swifterror values

swifterror llvm values model the swifterror register as memory at the
LLVM IR level. ISel will perform adhoc mem-to-reg on them. swifterror
values are constraint in how they can be used. Spilling them to memory
is not allowed.

SjLjEHPrepare tried to lower swifterror values to memory which is
unecessary since the back-end will spill and reload the register as
neccessary (as long as clobbering calls are marked as such which is the
case here) and further leads to invalid IR because swifterror values
can't be stored to memory.

rdar://38164004

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@327521 91177308-0d34-0410-b5e6-96231b3b80d8

6 years ago[GlobalIsel][X86] Support for G_SDIV instruction
Alexander Ivchenko [Wed, 14 Mar 2018 15:41:11 +0000 (15:41 +0000)]
[GlobalIsel][X86] Support for G_SDIV instruction

Reviewed By: igorb

Differential Revision: https://reviews.llvm.org/D44430

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@327520 91177308-0d34-0410-b5e6-96231b3b80d8

6 years ago[CodeGen] allow printing of zero latency in sched comments
Sanjay Patel [Wed, 14 Mar 2018 15:28:48 +0000 (15:28 +0000)]
[CodeGen] allow printing of zero latency in sched comments

I don't know how to expose this in a test. There are ARM / AArch64
sched classes that include zero latency instructions, but I'm not
seeing sched info printed for those targets. X86 will almost
certainly have these soon (see PR36671), but no model has
'let Latency = 0' currently.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@327518 91177308-0d34-0410-b5e6-96231b3b80d8

6 years ago[llvm-mca] Remove unused variable from InstrBuilder.cpp. NFC
Andrea Di Biagio [Wed, 14 Mar 2018 15:19:47 +0000 (15:19 +0000)]
[llvm-mca] Remove unused variable from InstrBuilder.cpp. NFC

This was causing a buildbot failure.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@327517 91177308-0d34-0410-b5e6-96231b3b80d8

6 years ago[llvm-mca] Move the logic that updates the register files from InstrBuilder to Dispat...
Andrea Di Biagio [Wed, 14 Mar 2018 14:57:23 +0000 (14:57 +0000)]
[llvm-mca] Move the logic that updates the register files from InstrBuilder to DispatchUnit. NFCI

Before this patch, the register file was always updated at instruction creation
time. That means, new read-after-write dependencies, and new temporary registers
were allocated at instruction creation time.

This patch refactors the code in InstrBuilder, and move all the logic that
updates the register file into the dispatch unit. We only want to update the
register file when instructions are effectively dispatched (not before).

This refactoring also helps removing a bad dependency between the InstrBuilder
and the DispatchUnit.

No functional change intended.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@327514 91177308-0d34-0410-b5e6-96231b3b80d8

6 years ago[mips] Add support for CRC ASE
Petar Jovanovic [Wed, 14 Mar 2018 14:13:31 +0000 (14:13 +0000)]
[mips] Add support for CRC ASE

This includes

  Instructions: crc32b, crc32h, crc32w, crc32d,
                crc32cb, crc32ch, crc32cw, crc32cd

  Assembler directives: .set crc, .set nocrc, .module crc, .module nocrc

  Attribute: crc

  .MIPS.abiflags: CRC (0x8000)

Patch by Vladimir Stefanovic.

Differential Revision: https://reviews.llvm.org/D44176

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@327511 91177308-0d34-0410-b5e6-96231b3b80d8

6 years ago[X86][Btver2] Fix YMM shuffle, permute and permutevar scheduler costs
Simon Pilgrim [Wed, 14 Mar 2018 14:05:19 +0000 (14:05 +0000)]
[X86][Btver2] Fix YMM shuffle, permute and permutevar scheduler costs

Account for ymm double pumping and add proper pshufb/permutevar support

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@327510 91177308-0d34-0410-b5e6-96231b3b80d8

6 years ago[LTO/gold] Fix workaround for old plugin-api.h in --wrap support
Teresa Johnson [Wed, 14 Mar 2018 14:00:57 +0000 (14:00 +0000)]
[LTO/gold] Fix workaround for old plugin-api.h in --wrap support

The workaround for older plugin-api.h in r327506 unfortunately
used another union member that is also fairly new and not available
in the plugin-api.h on some of the bots, leading to:
http://lab.llvm.org:8011/builders/clang-with-thin-lto-ubuntu/builds/9121/steps/build-stage2-LLVMgold.so/logs/stdio

Change to use a different member that we will definitely have (as it
is used elsewhere in gold-plugin.cpp already).

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@327509 91177308-0d34-0410-b5e6-96231b3b80d8

6 years ago[LTO/gold] Support --wrap
Teresa Johnson [Wed, 14 Mar 2018 13:26:18 +0000 (13:26 +0000)]
[LTO/gold] Support --wrap

Summary:
(Restores r327459 with handling for old plugin-api.h)
Utilize new gold plugin api interface for obtaining --wrap option
arguments, and LTO API handling (added for --wrap support in lld LTO),
to mark symbols so that LTO does not optimize them inappropriately.

Note the test cases will be in a new gold test subdirectory that
is dependent on the next release of gold which will contain the new
interfaces.

Reviewers: pcc, tmsriram

Subscribers: mehdi_amini, llvm-commits, inglorion

Differential Revision: https://reviews.llvm.org/D44235

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@327506 91177308-0d34-0410-b5e6-96231b3b80d8

6 years ago[X86][SSE] Use WriteFShuffleLd for MOVDDUP/MOVSHDUP/MOVSLDUP reg-mem instructions
Simon Pilgrim [Wed, 14 Mar 2018 13:22:56 +0000 (13:22 +0000)]
[X86][SSE] Use WriteFShuffleLd for MOVDDUP/MOVSHDUP/MOVSLDUP reg-mem instructions

They shouldn't be treated as pure loads.

Found while investigating D44428

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@327505 91177308-0d34-0410-b5e6-96231b3b80d8

6 years ago[AArch64] Don't produce R_AARCH64_TLSLE_LDST32_TPREL_LO12_NC
Martin Storsjo [Wed, 14 Mar 2018 13:09:10 +0000 (13:09 +0000)]
[AArch64] Don't produce R_AARCH64_TLSLE_LDST32_TPREL_LO12_NC

Support for this relocation is missing in both LLD and GNU binutils
at the moment.

This reverts the ELF parts of SVN r327316.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@327503 91177308-0d34-0410-b5e6-96231b3b80d8

6 years agoFix 'not all control paths return a value' MSVC warning. NFCI.
Simon Pilgrim [Wed, 14 Mar 2018 12:04:51 +0000 (12:04 +0000)]
Fix 'not all control paths return a value' MSVC warning. NFCI.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@327502 91177308-0d34-0410-b5e6-96231b3b80d8

6 years agoFix msvc compiler error in r327498
Pavel Labath [Wed, 14 Mar 2018 11:31:17 +0000 (11:31 +0000)]
Fix msvc compiler error in r327498

msvc reports an "illegal indirection" error here. Attempt to appease it
with a different initialization syntax.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@327500 91177308-0d34-0410-b5e6-96231b3b80d8

6 years ago[GlobalISel][X86] Support G_LSHR/G_ASHR/G_SHL
Alexander Ivchenko [Wed, 14 Mar 2018 11:23:57 +0000 (11:23 +0000)]
[GlobalISel][X86] Support G_LSHR/G_ASHR/G_SHL

Support G_LSHR/G_ASHR/G_SHL. We have 3 variance for
shift instructions : shift gpr, shift imm, shift 1.
Currently GlobalIsel TableGen generate patterns for
shift imm and shift 1, but with shiftCount i8.
In G_LSHR/G_ASHR/G_SHL like LLVM-IR both arguments
has the same type, so for now only shift i8 can use
auto generated TableGen patterns.

The support of G_SHL/G_ASHR enables tryCombineSExt
from LegalizationArtifactCombiner.h to hit, which
results in different legalization for the following tests:
    LLVM :: CodeGen/X86/GlobalISel/ext-x86-64.ll
    LLVM :: CodeGen/X86/GlobalISel/gep.ll
    LLVM :: CodeGen/X86/GlobalISel/legalize-ext-x86-64.mir

-; X64-NEXT:    movsbl %dil, %eax
+; X64-NEXT:    movl $24, %ecx
+; X64-NEXT:    # kill: def $cl killed $ecx
+; X64-NEXT:    shll %cl, %edi
+; X64-NEXT:    movl $24, %ecx
+; X64-NEXT:    # kill: def $cl killed $ecx
+; X64-NEXT:    sarl %cl, %edi
+; X64-NEXT:    movl %edi, %eax

..which is not optimal and should be addressed later.

Rework of the patch by igorb

Reviewed By: igorb

Differential Revision: https://reviews.llvm.org/D44395

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@327499 91177308-0d34-0410-b5e6-96231b3b80d8

6 years agoExplicitly initialize dwarf::FormParams in DIEInteger::SizeOf
Pavel Labath [Wed, 14 Mar 2018 11:14:43 +0000 (11:14 +0000)]
Explicitly initialize dwarf::FormParams in DIEInteger::SizeOf

This could end up inititialized if someone called the function with a
null AsmPrinter. Right now this only happens in DIEHash unit tests,
presumably because it was hard to create an AsmPrinter in the context of
unit tests. This only worked before r327486 because those tests did not
use any dwarf forms whose size actually depended on the dwarf version
(otherwise, they would have crashed due to null dereference).

I fix the uninitialized error, by explicitly initializing FormParams to
an invalid value, which will cause getFixedFormByteSize to return None
if called with a form with version-dependent size. A more principled
solution might be to fix the DIEHash tests to always pass in a valid
AsmPrinter.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@327498 91177308-0d34-0410-b5e6-96231b3b80d8

6 years agoTableGen: Explicitly forbid some nestings of class, multiclass, and foreach
Nicolai Haehnle [Wed, 14 Mar 2018 11:01:01 +0000 (11:01 +0000)]
TableGen: Explicitly forbid some nestings of class, multiclass, and foreach

These previously all failed one way or another, but now we produce a more
helpful error message.

Change-Id: I8ffd2e87c8e35a5134c3be289e0a1fecaa2bb8ca

Differential revision: https://reviews.llvm.org/D44115

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@327497 91177308-0d34-0410-b5e6-96231b3b80d8

6 years agoTableGen: Add !ne, !le, !lt, !ge, and !gt comparisons
Nicolai Haehnle [Wed, 14 Mar 2018 11:00:57 +0000 (11:00 +0000)]
TableGen: Add !ne, !le, !lt, !ge, and !gt comparisons

Change-Id: I8e2ece677268972d578a787467f7ef52a1f33a71

Differential revision: https://reviews.llvm.org/D44114

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@327496 91177308-0d34-0410-b5e6-96231b3b80d8

6 years agoTableGen: Allow dag operators to be resolved late
Nicolai Haehnle [Wed, 14 Mar 2018 11:00:48 +0000 (11:00 +0000)]
TableGen: Allow dag operators to be resolved late

Change-Id: I51bb80fd5c48c8ac441ab11e43d43c1b91b4b590

Differential revision: https://reviews.llvm.org/D44113

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@327495 91177308-0d34-0410-b5e6-96231b3b80d8

6 years agoTableGen: Type-check BinOps
Nicolai Haehnle [Wed, 14 Mar 2018 11:00:43 +0000 (11:00 +0000)]
TableGen: Type-check BinOps

Additionally, allow more than two operands to !con, !add, !and, !or
in the same way as is already allowed for !listconcat and !strconcat.

Change-Id: I9659411f554201b90cd8ed7c7e004d381a66fa93

Differential revision: https://reviews.llvm.org/D44112

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@327494 91177308-0d34-0410-b5e6-96231b3b80d8

6 years agoTableGen: Allow ? in lists
Nicolai Haehnle [Wed, 14 Mar 2018 11:00:33 +0000 (11:00 +0000)]
TableGen: Allow ? in lists

This makes using !dag more convenient in some cases.

Change-Id: I0a8c35e15ccd1ecec778fd1c8d64eee38d74517c

Differential revision: https://reviews.llvm.org/D44111

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@327493 91177308-0d34-0410-b5e6-96231b3b80d8

6 years agoTableGen: Add !dag function for construction
Nicolai Haehnle [Wed, 14 Mar 2018 11:00:26 +0000 (11:00 +0000)]
TableGen: Add !dag function for construction

This allows constructing DAG nodes with programmatically determined
names, and can simplify constructing DAG nodes in other cases as
well.

Also, add documentation and some very simple tests for the already
existing !con.

Change-Id: Ida61cd82e99752548d7109ce8da34d29da56a5f7

Differential revision: https://reviews.llvm.org/D44110

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@327492 91177308-0d34-0410-b5e6-96231b3b80d8

6 years ago[AMDGPU] Fix for DAGCombiner infinite loop in OCLtst
Alexander Timofeev [Wed, 14 Mar 2018 09:48:51 +0000 (09:48 +0000)]
[AMDGPU] Fix for DAGCombiner infinite loop in OCLtst

Differential revision: https://reviews.llvm.org/D44417

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@327488 91177308-0d34-0410-b5e6-96231b3b80d8

6 years agoDWARF: Unify form size handling code
Pavel Labath [Wed, 14 Mar 2018 09:39:54 +0000 (09:39 +0000)]
DWARF: Unify form size handling code

Summary:
This patch replaces the two switches which are deducing the size of
various forms with a single implementation. I have put the new
implementation into BinaryFormat, to avoid introducing dependencies
between the two independent libraries (DebugInfo and CodeGen) that need
this functionality.

Reviewers: aprantl, JDevlieghere, dblaikie

Subscribers: llvm-commits

Differential Revision: https://reviews.llvm.org/D44418

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@327486 91177308-0d34-0410-b5e6-96231b3b80d8

6 years ago[dsymutil] Print architecture in warning
Jonas Devlieghere [Wed, 14 Mar 2018 09:34:54 +0000 (09:34 +0000)]
[dsymutil] Print architecture in warning

Make the architecture part of the warning in the DebugMapParser. This
makes things consistent with the Apple's internal version of dsymutil.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@327485 91177308-0d34-0410-b5e6-96231b3b80d8

6 years agoExport LLVM_DYLIB_COMPONENTS in LLVMConfig.cmake
Pavel Labath [Wed, 14 Mar 2018 09:28:38 +0000 (09:28 +0000)]
Export LLVM_DYLIB_COMPONENTS in LLVMConfig.cmake

Summary:
This is needed so that external projects (e.g. a standalone build of
lldb) can link to the LLVM shared library via the USE_SHARED argument of
llvm_config. Without this, llvm_config would add LLVM to the link list,
but then also add the constituent static libraries, resulting in
multiply defined symbols.

Reviewers: beanz, mgorny

Subscribers: llvm-commits

Differential Revision: https://reviews.llvm.org/D44391

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@327484 91177308-0d34-0410-b5e6-96231b3b80d8

6 years ago[GlobalIsel][X86] Support for G_ZEXT instruction
Alexander Ivchenko [Wed, 14 Mar 2018 09:11:23 +0000 (09:11 +0000)]
[GlobalIsel][X86] Support for G_ZEXT instruction

Reviewed By: igorb

Differential Revision: https://reviews.llvm.org/D44378

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@327482 91177308-0d34-0410-b5e6-96231b3b80d8

6 years ago[LLVM-C] Redo unnamed_address attribute bindings
Robert Widmann [Wed, 14 Mar 2018 06:45:51 +0000 (06:45 +0000)]
[LLVM-C] Redo unnamed_address attribute bindings

Summary:
The old bindings should have used an enum instead of a boolean.  This
deprecates LLVMHasUnnamedAddr and LLVMSetUnnamedAddr , replacing them
with LLVMGetUnnamedAddress and LLVMSetUnnamedAddress respectively that do.
Though it is unlikely LLVM will gain more supported global value linker
hints, the new API can scale to accommodate this.

Reviewers: deadalnix, whitequark

Reviewed By: whitequark

Subscribers: llvm-commits, harlanhaskins

Differential Revision: https://reviews.llvm.org/D43448

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@327479 91177308-0d34-0410-b5e6-96231b3b80d8

6 years ago[RuntimeDyld] Silence a compiler error.
Lang Hames [Wed, 14 Mar 2018 06:39:49 +0000 (06:39 +0000)]
[RuntimeDyld] Silence a compiler error.

This should fix the error at
http://lab.llvm.org:8011/builders/lld-x86_64-darwin13/builds/19008

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@327478 91177308-0d34-0410-b5e6-96231b3b80d8

6 years ago[ORC] Fix a data race in the lookup function.
Lang Hames [Wed, 14 Mar 2018 06:25:08 +0000 (06:25 +0000)]
[ORC] Fix a data race in the lookup function.

The Error locals need to be protected by a mutex. (This could be fixed by
having the promises / futures contain Expected and Error values, but
MSVC's future implementation does not support this yet).

Hopefully this will fix some of the errors seen on the builders due to
r327474.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@327477 91177308-0d34-0410-b5e6-96231b3b80d8

6 years ago[ExecutionEngine] Add a getSymbolTable method to RuntimeDyld.
Lang Hames [Wed, 14 Mar 2018 06:25:07 +0000 (06:25 +0000)]
[ExecutionEngine] Add a getSymbolTable method to RuntimeDyld.

This can be used to extract the symbol table from a RuntimeDyld instance prior
to disposing of it.

This patch also updates RTDyldObjectLinkingLayer to use the new method, rather
than requesting symbols one at a time via getSymbol.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@327476 91177308-0d34-0410-b5e6-96231b3b80d8

6 years ago[ORC] Silence a compiler error.
Lang Hames [Wed, 14 Mar 2018 05:23:56 +0000 (05:23 +0000)]
[ORC] Silence a compiler error.

This should fix the builder error at
http://lab.llvm.org:8011/builders/lld-x86_64-darwin13/builds/19006

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@327475 91177308-0d34-0410-b5e6-96231b3b80d8

6 years ago[ORC] Add a 'lookup' convenience function for finding symbols in a list of VSOs.
Lang Hames [Wed, 14 Mar 2018 04:18:04 +0000 (04:18 +0000)]
[ORC] Add a 'lookup' convenience function for finding symbols in a list of VSOs.

The lookup function takes a list of VSOs, a set of symbol names (or just one
symbol name) and a materialization function object. It returns an
Expected<SymbolMap> (if given a set of names) or an Expected<JITEvaluatedSymbol>
(if given just one name). The lookup method constructs an
AsynchronousSymbolQuery for the given names, applies that query to each VSO in
the list in turn, and then blocks waiting for the query to complete. If
threading is enabled then the materialization function object can be used to
execute the materialization on different threads. If threading is disabled the
MaterializeOnCurrentThread utility must be used.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@327474 91177308-0d34-0410-b5e6-96231b3b80d8

6 years agoDisable test debuglineinfo-path on powerpc
Eugene Zemtsov [Wed, 14 Mar 2018 02:10:07 +0000 (02:10 +0000)]
Disable test debuglineinfo-path on powerpc

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@327472 91177308-0d34-0410-b5e6-96231b3b80d8

6 years agogrep for global functions only
Eugene Zemtsov [Wed, 14 Mar 2018 01:07:18 +0000 (01:07 +0000)]
grep for global functions only

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@327469 91177308-0d34-0410-b5e6-96231b3b80d8

6 years agoTargetMachine: Add address space to getPointerSize
Matt Arsenault [Wed, 14 Mar 2018 00:36:23 +0000 (00:36 +0000)]
TargetMachine: Add address space to getPointerSize

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@327467 91177308-0d34-0410-b5e6-96231b3b80d8

6 years agoAdd extra output/check to debug clang-ppc64be-linux test failure
Eugene Zemtsov [Wed, 14 Mar 2018 00:15:16 +0000 (00:15 +0000)]
Add extra output/check to debug clang-ppc64be-linux test failure

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@327466 91177308-0d34-0410-b5e6-96231b3b80d8

6 years agoRevert "[LTO/gold] Support --wrap"
Teresa Johnson [Tue, 13 Mar 2018 23:55:34 +0000 (23:55 +0000)]
Revert "[LTO/gold] Support --wrap"

This reverts commit r327459. The new gold plugin interface is not
available with older gold installations, leading to compile failures:
http://lab.llvm.org:8011/builders/clang-with-thin-lto-ubuntu/builds/9109/steps/build-stage2-LLVMgold.so/logs/stdio

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@327465 91177308-0d34-0410-b5e6-96231b3b80d8

6 years ago[X86] Re-generate test to get proper capitalization of its CHECK lines. NFC
Craig Topper [Tue, 13 Mar 2018 23:31:48 +0000 (23:31 +0000)]
[X86] Re-generate test to get proper capitalization of its CHECK lines. NFC

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@327462 91177308-0d34-0410-b5e6-96231b3b80d8

6 years ago[GISel]: Fix incorrect type used in Pattern Match for ICst
Aditya Nandakumar [Tue, 13 Mar 2018 23:21:13 +0000 (23:21 +0000)]
[GISel]: Fix incorrect type used in Pattern Match for ICst

getConstantVRegVal() returns int64_t but we use uint64_t.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@327461 91177308-0d34-0410-b5e6-96231b3b80d8

6 years ago[LTO/gold] Support --wrap
Teresa Johnson [Tue, 13 Mar 2018 23:06:19 +0000 (23:06 +0000)]
[LTO/gold] Support --wrap

Summary:
Utilize new gold plugin api interface for obtaining --wrap option
arguments, and LTO API handling (added for --wrap support in lld LTO),
to mark symbols so that LTO does not optimize them inappropriately.

Note the test cases will be in a new gold test subdirectory that
is dependent on the next release of gold which will contain the new
interfaces.

Reviewers: pcc, tmsriram

Subscribers: mehdi_amini, llvm-commits, inglorion

Differential Revision: https://reviews.llvm.org/D44235

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@327459 91177308-0d34-0410-b5e6-96231b3b80d8

6 years agoDisable optimizations in debuglineinfo-path test
Eugene Zemtsov [Tue, 13 Mar 2018 22:48:39 +0000 (22:48 +0000)]
Disable optimizations in debuglineinfo-path test

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@327458 91177308-0d34-0410-b5e6-96231b3b80d8

6 years ago[X86] Simplify the LowerAVXCONCAT_VECTORS code a little by creating a single path...
Craig Topper [Tue, 13 Mar 2018 22:36:07 +0000 (22:36 +0000)]
[X86] Simplify the LowerAVXCONCAT_VECTORS code a little by creating a single path for insert_subvector handling.

We now only create recursive concats if we have more than two non-zero values. This keeps our subvector broadcast DAG combine functioning.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@327457 91177308-0d34-0410-b5e6-96231b3b80d8

6 years ago[X86] Rewrite LowerAVXCONCAT_VECTORS similar to how we handle vXi1 concats.
Craig Topper [Tue, 13 Mar 2018 22:05:25 +0000 (22:05 +0000)]
[X86] Rewrite LowerAVXCONCAT_VECTORS similar to how we handle vXi1 concats.

This better able to detect undef and zeros pieces in the concat. Or cases when only one subvector is non-zero. This allows us to avoid silly things like double inserts into progressively larger undefs.

This still builds 512 bit concats of 128 bits by building up through 256 bits first. But I don't know if that's best.

We probably want to merge this with the vXi1 concat code since they are very similar.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@327454 91177308-0d34-0410-b5e6-96231b3b80d8

6 years agoDisable PDB injected sources test temporarily.
Zachary Turner [Tue, 13 Mar 2018 21:18:00 +0000 (21:18 +0000)]
Disable PDB injected sources test temporarily.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@327451 91177308-0d34-0410-b5e6-96231b3b80d8

6 years agoSimplify more cases of logical ops of masked icmps.
Hiroshi Yamauchi [Tue, 13 Mar 2018 21:13:18 +0000 (21:13 +0000)]
Simplify more cases of logical ops of masked icmps.

Summary:
For example,

((X & 255) != 0) && ((X & 15) == 8) -> ((X & 15) == 8).
((X & 7) != 0) && ((X & 15) == 8) -> false.

Reviewers: davidxl

Reviewed By: davidxl

Subscribers: llvm-commits

Differential Revision: https://reviews.llvm.org/D43835

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@327450 91177308-0d34-0410-b5e6-96231b3b80d8

6 years agoRemove explicit triple and data layout from the test
Eugene Zemtsov [Tue, 13 Mar 2018 21:10:15 +0000 (21:10 +0000)]
Remove explicit triple and data layout from the test

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@327449 91177308-0d34-0410-b5e6-96231b3b80d8

6 years ago[DAGCombiner] Allow visitEXTRACT_SUBVECTOR to combine with BUILD_VECTORS between...
Craig Topper [Tue, 13 Mar 2018 20:36:28 +0000 (20:36 +0000)]
[DAGCombiner] Allow visitEXTRACT_SUBVECTOR to combine with BUILD_VECTORS between LegalizeVectorOps and LegalizeDAG.

BUILD_VECTORs aren't themselves legalized until LegalizeDAG so we should still be able to create an "illegal" one before that. This helps combine with BUILD_VECTORS that are introduced during LegalizeVectorOps due to unrolling.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@327446 91177308-0d34-0410-b5e6-96231b3b80d8

6 years agoUpdate modulemap to exclude new DIA headers.
Zachary Turner [Tue, 13 Mar 2018 20:16:37 +0000 (20:16 +0000)]
Update modulemap to exclude new DIA headers.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@327444 91177308-0d34-0410-b5e6-96231b3b80d8

6 years agoFix debuglineinfo-path.ll
Eugene Zemtsov [Tue, 13 Mar 2018 20:06:33 +0000 (20:06 +0000)]
Fix debuglineinfo-path.ll

This fix is based on an assumption that some build bots are missing 'echo
-n'

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@327443 91177308-0d34-0410-b5e6-96231b3b80d8

6 years ago[MIR] Allow frame-setup and frame-destroy on the same instruction
Francis Visoiu Mistrih [Tue, 13 Mar 2018 19:53:16 +0000 (19:53 +0000)]
[MIR] Allow frame-setup and frame-destroy on the same instruction

Nothing prevents us from having both frame-setup and frame-destroy on
the same instruction.

When merging:
* frame-setup OPCODE1
* frame-destroy OPCODE2
into
* frame-setup frame-destroy OPCODE3

we want to be able to print and parse both flags.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@327442 91177308-0d34-0410-b5e6-96231b3b80d8

6 years agoTemporary disable debuglineinfo-path.ll to fix build
Eugene Zemtsov [Tue, 13 Mar 2018 19:48:31 +0000 (19:48 +0000)]
Temporary disable debuglineinfo-path.ll to fix build

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@327441 91177308-0d34-0410-b5e6-96231b3b80d8

6 years agoTest Commit NFC. Updated comment
Anna Thomas [Tue, 13 Mar 2018 19:38:45 +0000 (19:38 +0000)]
Test Commit NFC. Updated comment

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@327436 91177308-0d34-0410-b5e6-96231b3b80d8

6 years ago[x86] add test for WriteZero sched class instructions; NFC
Sanjay Patel [Tue, 13 Mar 2018 19:20:01 +0000 (19:20 +0000)]
[x86] add test for WriteZero sched class instructions; NFC

Nops should have zero latency because there is no result.
Idioms like 'xorps xmm0, xmm0' may have zero latency because
they are handled without using an execution unit.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@327435 91177308-0d34-0410-b5e6-96231b3b80d8

6 years ago[SLP] clean some formats
Haicheng Wu [Tue, 13 Mar 2018 18:44:19 +0000 (18:44 +0000)]
[SLP] clean some formats

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@327433 91177308-0d34-0410-b5e6-96231b3b80d8

6 years ago[LazyValueInfo] PR33357 prevent infinite recursion on BinaryOperator
Brian M. Rzycki [Tue, 13 Mar 2018 18:14:10 +0000 (18:14 +0000)]
[LazyValueInfo] PR33357 prevent infinite recursion on BinaryOperator

Summary:
It is possible for LVI to encounter instructions that are not in valid
SSA form and reference themselves. One example is the following:
  %tmp4 = and i1 %tmp4, undef
Before this patch LVI would recurse until running out of stack memory
and crashed.  This patch marks these self-referential instructions as
Overdefined and aborts analysis on the instruction.

Fixes https://bugs.llvm.org/show_bug.cgi?id=33357

Reviewers: craig.topper, anna, efriedma, dberlin, sebpop, kuhar

Reviewed by: dberlin

Subscribers: uabelho, spatel, a.elovikov, fhahn, eli.friedman, mzolotukhin, spop, evandro, davide, llvm-commits

Differential Revision: https://reviews.llvm.org/D34135

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@327432 91177308-0d34-0410-b5e6-96231b3b80d8

6 years agoImplement pure virtual method to fix build.
Zachary Turner [Tue, 13 Mar 2018 17:58:28 +0000 (17:58 +0000)]
Implement pure virtual method to fix build.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@327431 91177308-0d34-0410-b5e6-96231b3b80d8

6 years agoHandle mixed-OS paths in DWARF reader
Eugene Zemtsov [Tue, 13 Mar 2018 17:54:29 +0000 (17:54 +0000)]
Handle mixed-OS paths in DWARF reader

Make sure that DWARF line information generated by Windows can be properly read by Posix OS and vice versa.

Differential Revision: https://reviews.llvm.org/D44290

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@327430 91177308-0d34-0410-b5e6-96231b3b80d8

6 years ago[MC] fix documentation comments; NFC
Sanjay Patel [Tue, 13 Mar 2018 17:50:27 +0000 (17:50 +0000)]
[MC] fix documentation comments; NFC

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@327429 91177308-0d34-0410-b5e6-96231b3b80d8

6 years ago[PDB] Support dumping injected sources via the DIA reader.
Zachary Turner [Tue, 13 Mar 2018 17:46:06 +0000 (17:46 +0000)]
[PDB] Support dumping injected sources via the DIA reader.

Injected sources are basically a way to add actual source file content
to your PDB. Presumably you could use this for shipping your source code
with your debug information, but in practice I can only find this being
used for embedding natvis files inside of PDBs.

In order to effectively test LLVM's natvis file injection, we need a way
to dump the injected sources of a PDB in a way that is authoritative
(i.e. based on Microsoft's understanding of the PDB format, and not
LLVM's). To this end, I've added support for dumping injected sources
via DIA. I made a PDB file that used the /natvis option to generate a
test case.

Differential Revision: https://reviews.llvm.org/D44405

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@327428 91177308-0d34-0410-b5e6-96231b3b80d8

6 years agoRevert "[mips] Guard traps for microMIPS correctly"
Simon Dardis [Tue, 13 Mar 2018 17:31:11 +0000 (17:31 +0000)]
Revert "[mips] Guard traps for microMIPS correctly"

This appears to have broken the expensive checks bot in
a strange fashion. Reverting until I can investigate.

This reverts r327409.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@327427 91177308-0d34-0410-b5e6-96231b3b80d8

6 years ago[llvm-mca] Remove the logic that computes the reciprocal throughput, and make the...
Andrea Di Biagio [Tue, 13 Mar 2018 17:24:32 +0000 (17:24 +0000)]
[llvm-mca] Remove the logic that computes the reciprocal throughput, and make the SummaryView independent from the Backend. NFCI

Since r327420, the tool can query the MCSchedModel interface to obtain the
reciprocal throughput information.
As a consequence, method `ResourceManager::getRThroughput`, and
method `Backend::getRThroughput` are no longer needed.

This patch simplifies the code by removing the custom RThroughput computation.
This patch also refactors class SummaryView by removing the dependency with
the Backend object.

No functional change intended.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@327425 91177308-0d34-0410-b5e6-96231b3b80d8

6 years ago[DAGCombine] visitREM - Don't assume that one divrem isn't driving another
Simon Pilgrim [Tue, 13 Mar 2018 17:17:15 +0000 (17:17 +0000)]
[DAGCombine] visitREM - Don't assume that one divrem isn't driving another

Under some circumstances the divrems won't have been combined together before getting to this code.

So replace the assertion with a if() guard to not expand to X-((X/C)*C) to give the other combine chance to happen.

Reduced from OSS-Fuzz #6883
https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=6883

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@327424 91177308-0d34-0410-b5e6-96231b3b80d8

6 years agoBuild system changes for RISCV
Azharuddin Mohammed [Tue, 13 Mar 2018 17:04:33 +0000 (17:04 +0000)]
Build system changes for RISCV

Summary: Build system changes for RISCV. Makes it possible to build just the RISCV target alone.

Reviewers: asb, apazos, mgrang, beanz

Reviewed By: asb

Subscribers: mgorny, kito-cheng, shiva0217, llvm-commits

Differential Revision: https://reviews.llvm.org/D44153

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@327423 91177308-0d34-0410-b5e6-96231b3b80d8

6 years ago[lit] - Allow 1 test to report multiple micro-test results to provide support for...
Brian Homerding [Tue, 13 Mar 2018 16:37:59 +0000 (16:37 +0000)]
[lit] - Allow 1 test to report multiple micro-test results to provide support for microbenchmarks.

Summary:
These changes are to allow to a Result object to have nested Result objects in
order to support microbenchmarks. Currently lit is restricted to reporting one
result object for one test, this change provides support tests that want to
report individual timings for individual kernels.

This revision is the result of the discussions in
https://reviews.llvm.org/D32272#794759,
https://reviews.llvm.org/D37421#f8003b27 and https://reviews.llvm.org/D38496.
It is a separation of the changes purposed in https://reviews.llvm.org/D40077.

This change will enable adding LCALS (Livermore Compiler Analysis Loop Suite)
collection of loop kernels to the llvm test suite using the google benchmark
library (https://reviews.llvm.org/D43319) with tracking of individual kernel
timings.

Previously microbenchmarks had been handled by using macros to section groups
of microbenchmarks together and build many executables while still getting a
grouped timing (MultiSource/TSVC). Recently the google benchmark library was
added to the test suite and utilized with a litsupport plugin. However the
limitation of 1 test 1 result limited its use to passing a runtime option to
run only 1 microbenchmark with several hand written tests
(MicroBenchmarks/XRay). This runs the same executable many times with different
hand-written tests. I will update the litsupport plugin to utilize the new
functionality (https://reviews.llvm.org/D43316).

These changes allow lit to report micro test results if desired in order to get
many precise timing results from 1 run of 1 test executable.

Reviewers: MatzeB, hfinkel, rengolin, delcypher

Differential Revision: https://reviews.llvm.org/D43314

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@327422 91177308-0d34-0410-b5e6-96231b3b80d8

6 years ago[SelectionDAGBuilder] Replace deprecated calls to MemoryIntrinsic::getAlignment(...
Daniel Neilson [Tue, 13 Mar 2018 16:31:19 +0000 (16:31 +0000)]
[SelectionDAGBuilder] Replace deprecated calls to MemoryIntrinsic::getAlignment() (NFCI)

Summary:
This change is part of step five in the series of changes to remove alignment argument from
memcpy/memmove/memset in favour of alignment attributes. In particular, this changes the
SelectionDAGBuilder to cease using the old getAlignment() API of MemoryIntrinsic in favour of getting
source & dest specific alignments through the new API.

Steps:
Step 1) Remove alignment parameter and create alignment parameter attributes for
memcpy/memmove/memset. ( rL322965, rC322964, rL322963 )
Step 2) Expand the IRBuilder API to allow creation of memcpy/memmove with differing
source and dest alignments. ( rL323597 )
Step 3) Update Clang to use the new IRBuilder API. ( rC323617 )
Step 4) Update Polly to use the new IRBuilder API. ( rL323618 )
Step 5) Update LLVM passes that create memcpy/memmove calls to use the new IRBuilder API,
and those that use use MemIntrinsicInst::[get|set]Alignment() to use [get|set]DestAlignment()
and [get|set]SourceAlignment() instead. ( rL323886, rL323891, rL324148, rL324273, rL324278,
rL324384, rL324395, rL324402, rL324626, rL324642, rL324653, rL324654, rL324773, rL324774,
rL324781, rL324784, rL324955, rL324960, rL325816, rL327398 )
Step 6) Remove the single-alignment IRBuilder API for memcpy/memmove, and the
MemIntrinsicInst::[get|set]Alignment() methods.

Reference
   http://lists.llvm.org/pipermail/llvm-dev/2015-August/089384.html
   http://lists.llvm.org/pipermail/llvm-commits/Week-of-Mon-20151109/312083.html

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@327421 91177308-0d34-0410-b5e6-96231b3b80d8

6 years ago[MC] Move the reciprocal throughput computation from TargetSchedModel to MCSchedModel.
Andrea Di Biagio [Tue, 13 Mar 2018 16:28:55 +0000 (16:28 +0000)]
[MC] Move the reciprocal throughput computation from TargetSchedModel to MCSchedModel.

The goal is to make the reciprocal throughput computation accessible through the
MCSchedModel interface. This is particularly important for llvm-mca because it
can only query the MCSchedModel interface.

No functional change intended.

Differential Revision: https://reviews.llvm.org/D44392

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@327420 91177308-0d34-0410-b5e6-96231b3b80d8

6 years ago[X86] Remove SplitBinaryOpsAndApply and use SplitOpsAndApply by adding curly braces...
Craig Topper [Tue, 13 Mar 2018 16:23:27 +0000 (16:23 +0000)]
[X86] Remove SplitBinaryOpsAndApply and use SplitOpsAndApply by adding curly braces around the ops.

Summary: Unless you were intentionally avoiding this syntax? I saw you mentioned makeArrayRef in your commit that added SplitOpsAndApply.

Reviewers: RKSimon

Reviewed By: RKSimon

Subscribers: llvm-commits

Differential Revision: https://reviews.llvm.org/D44403

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@327418 91177308-0d34-0410-b5e6-96231b3b80d8

6 years ago[llvm-mca] Simplify code that computes the latency of an instruction in
Andrea Di Biagio [Tue, 13 Mar 2018 15:59:59 +0000 (15:59 +0000)]
[llvm-mca] Simplify code that computes the latency of an instruction in
InstrBuilder. NFCI

This was possible because of r327406, which added function`computeInstrLatency`
to MCSchedModel.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@327415 91177308-0d34-0410-b5e6-96231b3b80d8

6 years agoRevert r327397 [CodeView] Omit forward references for unnamed structs and ...
Brock Wyma [Tue, 13 Mar 2018 15:56:20 +0000 (15:56 +0000)]
Revert r327397 [CodeView] Omit forward references for unnamed structs and ...

This reverts commit r327397 to investigate a buildbot failure.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@327414 91177308-0d34-0410-b5e6-96231b3b80d8

6 years agotest commit: fix formatting of a comment
Zaara Syeda [Tue, 13 Mar 2018 15:49:05 +0000 (15:49 +0000)]
test commit: fix formatting of a comment
This is  a simple change to do the test commit.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@327412 91177308-0d34-0410-b5e6-96231b3b80d8

6 years ago[dsymutil] Unify error handling outside DwarfLinker.
Jonas Devlieghere [Tue, 13 Mar 2018 15:47:38 +0000 (15:47 +0000)]
[dsymutil] Unify error handling outside DwarfLinker.

This is a follow-up to r327137 where we unified error handling for the
DwarfLinker. This replaces calls to errs() and outs() with the
appropriate ostream wrapper everywhere in dsymutil.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@327411 91177308-0d34-0410-b5e6-96231b3b80d8

6 years ago[mips] Guard traps for microMIPS correctly
Simon Dardis [Tue, 13 Mar 2018 15:46:58 +0000 (15:46 +0000)]
[mips] Guard traps for microMIPS correctly

This is part of fixing the instruction predicates for MIPS.

Reviewers: atanasyan, abeserminji

Differential Revision: https://reviews.llvm.org/D44212

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@327409 91177308-0d34-0410-b5e6-96231b3b80d8

6 years ago[ThinLTO] Clear dllimport when setting dso_local.
Rafael Espindola [Tue, 13 Mar 2018 15:24:51 +0000 (15:24 +0000)]
[ThinLTO] Clear dllimport when setting dso_local.

This is PR36686.

If a user of a library is LTOed with that library we take the
opportunity to set dso_local, but we don't clear dllimport, which
creates an invalid IR.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@327408 91177308-0d34-0410-b5e6-96231b3b80d8

6 years ago[X86][Btver2] Split i8/i16/i32/i64 div/idiv costs
Simon Pilgrim [Tue, 13 Mar 2018 15:22:24 +0000 (15:22 +0000)]
[X86][Btver2] Split i8/i16/i32/i64 div/idiv costs

We were assuming a mixture of 32/64 division costs.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@327407 91177308-0d34-0410-b5e6-96231b3b80d8

6 years ago[MC] Move the instruction latency computation from TargetSchedModel to MCSchedModel.
Andrea Di Biagio [Tue, 13 Mar 2018 15:22:13 +0000 (15:22 +0000)]
[MC] Move the instruction latency computation from TargetSchedModel to MCSchedModel.

The goal is to make the latency information accessible through the MCSchedModel
interface. This is particularly important for tools like llvm-mca that only have
access to the MCSchedModel API.

This partially fixes PR36676.
No functional change intended.

Differential Revision: https://reviews.llvm.org/D44383

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@327406 91177308-0d34-0410-b5e6-96231b3b80d8

6 years ago[InstCombine] fix fmul reassociation to avoid creating an extra fdiv
Sanjay Patel [Tue, 13 Mar 2018 14:46:32 +0000 (14:46 +0000)]
[InstCombine] fix fmul reassociation to avoid creating an extra fdiv

This was supposed to be an NFC refactoring that will eventually allow
eliminating the isFast() predicate, but there's a rare possibility
that we would pessimize the code as shown in the test case because
we failed to check 'hasOneUse()' properly. This version also removes
an inefficiency of the old code; we would look for:
(X * C) * C1 --> X * (C * C1)
...but that pattern is always handled by
SimplifyAssociativeOrCommutative().

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@327404 91177308-0d34-0410-b5e6-96231b3b80d8

6 years ago[mips] Fix the definitions of the EVA instructions
Simon Dardis [Tue, 13 Mar 2018 14:39:44 +0000 (14:39 +0000)]
[mips] Fix the definitions of the EVA instructions

Correct their availability to their respective ISAs.

Reviewers: atanasyan

Differential Revision: https://reviews.llvm.org/D44209

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@327403 91177308-0d34-0410-b5e6-96231b3b80d8

6 years ago[dsymutil] Remove old error/warn functions. NFC.
Jonas Devlieghere [Tue, 13 Mar 2018 14:28:07 +0000 (14:28 +0000)]
[dsymutil] Remove old error/warn functions. NFC.

This removes the old error and warn functions that were still present in
the dwarf linker.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@327400 91177308-0d34-0410-b5e6-96231b3b80d8

6 years ago[dsymutil] Perform analyzeContextInfo and CloneDIEs in parallel
Jonas Devlieghere [Tue, 13 Mar 2018 14:27:15 +0000 (14:27 +0000)]
[dsymutil] Perform analyzeContextInfo and CloneDIEs in parallel

This patch makes dsymutil perform analyzeContextInfo and CloneDIEs in
parallel. For the same object file, there is a dependency between the
two. However, we can do analyzeContextInfo for the next object file
while cloning DIEs for the current. This is exactly the approach taken
in this patch.

For WebCore, this leads to a performance improvement of 29% and for
clang we see similar results with at 32% improvement.

A big thanks to Pete Cooper who came up with the original idea and
the PoC.

Differential revision: https://reviews.llvm.org/D43945

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@327399 91177308-0d34-0410-b5e6-96231b3b80d8

6 years ago[SROA] Take advantage of separate alignments for memcpy source and destination
Daniel Neilson [Tue, 13 Mar 2018 14:25:33 +0000 (14:25 +0000)]
[SROA] Take advantage of separate alignments for memcpy source and destination

Summary:
This change is part of step five in the series of changes to remove alignment argument from
memcpy/memmove/memset in favour of alignment attributes. In particular, this changes the
SROA pass to cease using the old getAlignment() & setAlignment() APIs of MemoryIntrinsic in
favour of getting source & dest specific alignments through the new API. This allows us
to enhance visitMemTransferInst to be more aggressive setting the alignment in memcpy
calls that it creates, as well as to only change the alignment of a memcpy/memmove
argument that it replaces.

Steps:
Step 1) Remove alignment parameter and create alignment parameter attributes for
memcpy/memmove/memset. ( rL322965, rC322964, rL322963 )
Step 2) Expand the IRBuilder API to allow creation of memcpy/memmove with differing
source and dest alignments. ( rL323597 )
Step 3) Update Clang to use the new IRBuilder API. ( rC323617 )
Step 4) Update Polly to use the new IRBuilder API. ( rL323618 )
Step 5) Update LLVM passes that create memcpy/memmove calls to use the new IRBuilder API,
and those that use use MemIntrinsicInst::[get|set]Alignment() to use [get|set]DestAlignment()
and [get|set]SourceAlignment() instead. ( rL323886, rL323891, rL324148, rL324273, rL324278,
rL324384, rL324395, rL324402, rL324626, rL324642, rL324653, rL324654, rL324773, rL324774,
rL324781, rL324784, rL324955, rL324960, rL325816 )
Step 6) Remove the single-alignment IRBuilder API for memcpy/memmove, and the
MemIntrinsicInst::[get|set]Alignment() methods.

Reference
   http://lists.llvm.org/pipermail/llvm-dev/2015-August/089384.html
   http://lists.llvm.org/pipermail/llvm-commits/Week-of-Mon-20151109/312083.html

Reviewers: chandlerc, bollu, efriedma

Reviewed By: efriedma

Subscribers: efriedma, eraman, llvm-commits

Differential Revision: https://reviews.llvm.org/D42974

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@327398 91177308-0d34-0410-b5e6-96231b3b80d8

6 years ago[CodeView] Omit forward references for unnamed structs and unions
Brock Wyma [Tue, 13 Mar 2018 14:14:16 +0000 (14:14 +0000)]
[CodeView] Omit forward references for unnamed structs and unions

Codeview references to unnamed structs and unions are expected to refer to the
complete type definition instead of a forward reference so Visual Studio can
resolve the type properly.

Differential Revision: https://reviews.llvm.org/D32498

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@327397 91177308-0d34-0410-b5e6-96231b3b80d8