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Commit Graph

163654 Commits

Author SHA1 Message Date
Eli Friedman
4c90a2d974 [LowerTypeTests] Mark .cfi.jumptable nounwind.
It doesn't unwind, and the wrong marking leads to the creation of an
.eh_frame section when it isn't necessary.

Differential Revision: https://reviews.llvm.org/D46082

llvm-svn: 331008
2018-04-27 00:32:24 +00:00
Eli Friedman
588f10bea1 [MachineOutliner] Don't outline from functions with a section marking.
The program might have unusual expectations for functions; for example,
the Linux kernel's build system warns if it finds references from .text
to .init.data.

I'm not sure this is something we actually want to make any guarantees
about (there isn't any explicit rule that would disallow outlining
in this case), but we might want to be conservative anyway.

Differential Revision: https://reviews.llvm.org/D46091

llvm-svn: 331007
2018-04-27 00:21:34 +00:00
Sam Clegg
417ceeda60 typo
llvm-svn: 331006
2018-04-27 00:17:24 +00:00
Sam Clegg
cb06f48d01 [WebAssembly] Section symbols must have local binding
Summary: Also test for symbols information in test/MC/WebAssembly/debug-info.ll.

Subscribers: jfb, dschuff, jgravelle-google, aheejin, sunfish, JDevlieghere, llvm-commits

Differential Revision: https://reviews.llvm.org/D46160

llvm-svn: 331005
2018-04-27 00:17:21 +00:00
David Bolvansky
73f76c8238 [SimplifyLibcalls] Replace locked IO with unlocked IO
Summary: If file stream arg is not captured and source is fopen, we could replace IO calls by unlocked IO ("_unlocked" function variants) to gain better speed,

Reviewers: efriedma, RKSimon, spatel, sanjoy, hfinkel, majnemer

Subscribers: lebedev.ri, llvm-commits

Differential Revision: https://reviews.llvm.org/D45736

llvm-svn: 331002
2018-04-26 22:31:43 +00:00
Matt Davis
58a43d9e66 [MCA] [NFC] Remove unused Index formal from ResourceManager::issueInstruction
Summary: The instruction index was never referenced in the body.  Just a minor cleanup.

Reviewers: andreadb

Reviewed By: andreadb

Subscribers: javed.absar, gbedwell, llvm-commits

Differential Revision: https://reviews.llvm.org/D46142

llvm-svn: 331001
2018-04-26 22:30:40 +00:00
Matt Davis
81af578fcb [Docs] Escape the @ symbol, so that it appears in documentation output. [NFC]
Summary:
The '@' character is a special character in Doxygen.  In a handful of cases we were not escaping this character which resulted in llvm intrinsics not being rendered properly.  Specifically, the @llvm part was removed.  

For example, see https://llvm.org/doxygen/classllvm_1_1AssumptionCache.html.  There are a few references to '.assume' without the @llvm. prefix.  This patch corrects this.

Reviewers: sanjoy

Reviewed By: sanjoy

Subscribers: llvm-commits, sanjoy

Differential Revision: https://reviews.llvm.org/D45981

llvm-svn: 330998
2018-04-26 21:55:45 +00:00
Chandler Carruth
21a3439610 [x86] Revert r330322 (& r330323): Lowering x86 adds/addus/subs/subus intrinsics
The LLVM commit introduces a crash in LLVM's instruction selection.

I filed http://llvm.org/PR37260 with the test case.

llvm-svn: 330997
2018-04-26 21:46:01 +00:00
Roman Lebedev
6ede3ac36d [InstCombine][NFC] Regenerate checks in or-xor.ll
llvm-svn: 330996
2018-04-26 21:41:56 +00:00
Reid Kleckner
519aa77685 Fix WAsm dwarfdump.ll test on Windows
llvm-svn: 330995
2018-04-26 21:13:59 +00:00
Roman Lebedev
b38430c494 [InstCombine][NFC] Regenerate checks in and-or-not.ll
llvm-svn: 330994
2018-04-26 21:13:09 +00:00
Adrian Prantl
4beac907eb Revert "Fix a bug that prevents global variables from having a DW_OP_deref."
This reverts commit r3309704 while investigating bot breakage.

llvm-svn: 330993
2018-04-26 20:59:58 +00:00
Sanjoy Das
38344b83af [InstCombine] Simplify Add with remainder expressions as operands.
Summary:
Simplify integer add expression X % C0 + (( X / C0 ) % C1) * C0 to
X % (C0 * C1).  This is a common pattern seen in code generated by the XLA
GPU backend.

Add test cases for this new optimization.

Patch by Bixia Zheng!

Reviewers: sanjoy

Reviewed By: sanjoy

Subscribers: efriedma, craig.topper, lebedev.ri, llvm-commits, jlebar

Differential Revision: https://reviews.llvm.org/D45976

llvm-svn: 330992
2018-04-26 20:52:28 +00:00
Sanjoy Das
808aa051ec Add test cases to prepare for the optimization that simplifies Add with
remainder expressions as operands.

Summary:
Add test cases to prepare for the new optimization that Simplifies integer add
expression X % C0 + (( X / C0 ) % C1) * C0 to X % (C0 * C1).

Patch by Bixia Zheng!

Reviewers: sanjoy

Reviewed By: sanjoy

Subscribers: jlebar, llvm-commits

Differential Revision: https://reviews.llvm.org/D46017

llvm-svn: 330991
2018-04-26 20:52:27 +00:00
Roman Tereshin
619c8d7968 [GlobalISel] Reporting rules covered as part of the InstructionSelect's debug-only printing
The main goal of this change is to make it much easier to track which
rules are actually covered by Testgen'erated regression tests.

Reviewers: aemerson, dsanders

Differential Revision: https://reviews.llvm.org/D46095

llvm-svn: 330988
2018-04-26 20:22:17 +00:00
Roman Lebedev
008ec4f352 [InstCombine][NFC] add2.ll: add a few commutative checks.
Fixes some missing test coverage in InstCombineAddSub.cpp, visitAdd()

llvm-svn: 330986
2018-04-26 20:07:17 +00:00
Roman Lebedev
f83f8c795a [InstCombine][NFC] Autogenerate checks in add2.ll
llvm-svn: 330985
2018-04-26 20:07:12 +00:00
Simon Atanasyan
6b86c30a0b [mips] Accept 32-bit offsets for lb and lbu commands
`lb` and `lbu` commands accepts 16-bit signed offsets. But GAS accepts
larger offsets for these commands. If an offset does not fit in 16-bit
range, `lb` command is translated into lui/lb or lui/addu/lb series.
It's interesting that initially LLVM assembler supported this feature,
but later it was broken.

This patch restores support for 32-bit offsets. It replaces `mem_simm16`
operand for `LB` and `LBu` definitions by the new `mem_simmptr` operand.
This operand is intended to check that offset fits to the same size as
using for pointers. Later we will be able to extend this rule and
accepts 64-bit offsets when it is possible.

Some issues remain:
- The regression also affects LD, SD, LH, LHU commands. I'm going
  to fix them by a separate patch.

- GAS accepts any 32-bit values as an offset. Now LLVM accepts signed
  16-bit values and this patch extends the range to signed 32-bit offsets.
  In other words, the following code accepted by GAS and still triggers
  an error by LLVM:
```
  lb      $4, 0x80000004

  # gas
  lui     a0, 0x8000
    lb      a0, 4(a0)
```

- In case of 64-bit pointers GAS accepts a 64-bit offset and translates
  it to the li/dsll/lb series of commands. LLVM still rejects it.
  Probably this feature has never been implemented in LLVM. This issue
  is for a separate patch.
```
  lb      $4, 0x800000001

  # gas
  li      a0, 0x8000
  dsll    a0, a0, 0x14
  lb      a0, 4(a0)
```

Differential Revision: https://reviews.llvm.org/D45020

llvm-svn: 330983
2018-04-26 19:55:28 +00:00
Sam Clegg
14655b5aa9 [WebAssembly] Write DWARF data into wasm object file
- Writes ".debug_XXX" into corresponding custom sections.
- Writes relocation records into "reloc.debug_XXX" sections.

Patch by Yury Delendik!

Differential Revision: https://reviews.llvm.org/D44184

llvm-svn: 330982
2018-04-26 19:27:28 +00:00
Matt Arsenault
d22a5c6c61 DAG: Fix not legalizing vector fcanonicalizes
If an fcanoncialize was done on a vector type that was legal,

llvm-svn: 330981
2018-04-26 19:21:37 +00:00
Matt Arsenault
2e083290ad AMDGPU: Extend extract_vector_elt fneg combine to fabs
Fixes a regression in a future commit.

llvm-svn: 330980
2018-04-26 19:21:32 +00:00
Matt Arsenault
ed58114a21 AMDGPU: Consolidate SubtargetPredicate definitions
llvm-svn: 330979
2018-04-26 19:21:26 +00:00
Justin Bogner
d9f10219bd Specify REQUIRES: default_triple in a few tests
These were all failing when specifying LLVM_DEFAULT_TARGET_TRIPLE=''.

llvm-svn: 330977
2018-04-26 19:15:25 +00:00
Geoff Berry
dfadfc4259 [AArch64] Fix scavenged spill slot base when stack realignment required.
Summary:
Use the FP for scavenged spill slot accesses to prevent corruption of
the callee-save region when the SP is re-aligned.

Based on problem and patch reported by @paulwalker-arm

This is an alternative to solution proposed in D45770

Reviewers: t.p.northover, paulwalker-arm, thegameg, javed.absar

Subscribers: qcolombet, mcrosier, paulwalker-arm, kristof.beyls, rengolin, javed.absar, llvm-commits

Differential Revision: https://reviews.llvm.org/D46063

llvm-svn: 330976
2018-04-26 18:50:45 +00:00
Roman Lebedev
e78d75ab3a [NFC][InstCombine] rem.ll: add a few commutative tests.
This closes a gap in missing test coverage in
isKnownToBeAPowerOfTwo() from ValueTracking.cpp

llvm-svn: 330975
2018-04-26 18:44:37 +00:00
Roman Lebedev
4553098267 [NFC][InstCombine] Regenerate rem.ll test
llvm-svn: 330974
2018-04-26 18:44:32 +00:00
Alexander Shaposhnikov
9280736736 [llvm-objcopy] Implement --redefine-sym option
This diff implements --redefine-sym option 
for changing the name of a symbol.

Test plan: make check-all

Differential revision: https://reviews.llvm.org/D46029

llvm-svn: 330973
2018-04-26 18:28:17 +00:00
Michael Berg
7542792658 augmenting description for fcmp fmf - NFC
llvm-svn: 330972
2018-04-26 18:17:58 +00:00
Adrian Prantl
845f02daf3 Fix a bug that prevents global variables from having a DW_OP_deref.
For local variables the first DW_OP_deref is consumed by turning the
location kind into a memeory location, but that only makes sense for
values that are in a register to begin with, which cannot happen for
global variables that are attached to a symbol.

rdar://problem/39741860

llvm-svn: 330970
2018-04-26 18:17:04 +00:00
Sam Clegg
33666d525d [WebAssembly] Add version to object file metadata
Summary: See https://github.com/WebAssembly/tool-conventions/issues/54

Subscribers: jfb, dschuff, jgravelle-google, aheejin, sunfish, llvm-commits

Differential Revision: https://reviews.llvm.org/D46069

llvm-svn: 330969
2018-04-26 18:15:32 +00:00
Andrea Di Biagio
46881e2def [Tablegen] SubtargetEmitter: move the logic that prints predicates for variant scheduling classes to helper functions. NFC
llvm-svn: 330968
2018-04-26 18:03:24 +00:00
Haicheng Wu
ae78695533 [GlobalMerge] Fix a typo
now => know

llvm-svn: 330965
2018-04-26 17:56:50 +00:00
Vlad Tsyrklevich
f7298cce47 Revert "Enable EliminateAvailableExternally pass for -O1"
This reverts commit r330961 because it breaks a handful of clang tests.

llvm-svn: 330964
2018-04-26 17:54:53 +00:00
Paul Semel
a9fcbb5878 [llvm-objcopy] Add --localize-symbol option
llvm-svn: 330963
2018-04-26 17:44:43 +00:00
Vlad Tsyrklevich
c790ad0a49 Update stale comment in AsmWriter.cpp
Summary:
The old comment referred to llvm/IR/Writer.h which doesn't longer exist.
This patch replaces it with an up-to-date description of AsmWriter library.

Patch by Alex Yursha.

Reviewers: gribozavr, vlad.tsyrklevich

Reviewed By: vlad.tsyrklevich

Subscribers: llvm-commits

Differential Revision: https://reviews.llvm.org/D45895

llvm-svn: 330962
2018-04-26 17:34:51 +00:00
Vlad Tsyrklevich
dc12b168fc Enable EliminateAvailableExternally pass for -O1
Summary:
Follow-up to D43690, the EliminateAvailableExternally pass currently
runs under -O0 and -O2 and up. Under -O1 we would still want to drop
available_externally symbols to reduce space without inlining having
run.

Reviewers: tejohnson

Reviewed By: tejohnson

Subscribers: mehdi_amini, llvm-commits, kcc

Differential Revision: https://reviews.llvm.org/D46093

llvm-svn: 330961
2018-04-26 17:33:24 +00:00
Sam Clegg
ee518de3ad [WebAssembly] objdump: Don't assume all relocations have symbols
Subscribers: jfb, dschuff, jgravelle-google, aheejin, sunfish, llvm-commits

Differential Revision: https://reviews.llvm.org/D46134

llvm-svn: 330959
2018-04-26 17:05:04 +00:00
Sanjay Patel
5030a89334 [docs] provide the specific sanitizer option to detect junk-in-the-ftrunc
llvm-svn: 330958
2018-04-26 17:04:07 +00:00
Sam Clegg
c577c18253 [WebAssembly] Implement getRelocationValueString()
And use it in llvm-objdump.

Differential Revision: https://reviews.llvm.org/D46092

llvm-svn: 330957
2018-04-26 16:41:51 +00:00
Simon Dardis
62588f3d2b [mips] Fix a test case which is keeping the expensive checks bot win red (NFC)
llvm-svn: 330956
2018-04-26 16:22:47 +00:00
Mark Searles
b2c3ea9624 [AMDGPU][Waitcnt] As of gfx7, VMEM operations do not increment the export counter and the input registers are available in the next instruction; update the waitcnt pass to take this into account.
Differential Revision: https://reviews.llvm.org/D46067

llvm-svn: 330954
2018-04-26 16:11:19 +00:00
Simon Dardis
36cd99ffe9 [mips] Correct the definitions of some control instructions
Correct the definitions of ei, di, eret, deret, wait, syscall and break.
Also provide microMIPS specific aliases to match the MIPS aliases.

Additionally correct the definition of the wait instruction so that
it is present in the instruction mapping tables.

Reviewers: smaksimovic, abeserminji, atanasyan

Differential Revision: https://reviews.llvm.org/D45939

llvm-svn: 330952
2018-04-26 16:06:34 +00:00
Sanjay Patel
3d43672965 [DAGCombiner] limit ftrunc optimizations with function attribute
As noted, the attribute name is subject to change once we have
the clang side implemented, but it's clear that we need some
kind of attribute-based predication here based on the discussion
for:
rL330437

llvm-svn: 330951
2018-04-26 16:04:44 +00:00
Sanjay Patel
b7912eca70 [x86] add tests to show potential opt-out of ftrunc optimization; NFC
This is another preliminary step for disabling this transform as 
discussed in the post-commit thread for:
rL330437
I'm using one of the names suggested there for the attribute, but 
we can fix that up as needed once the clang side of this is sorted 
out. 

llvm-svn: 330950
2018-04-26 15:36:15 +00:00
Alex Bradbury
1407041ee9 [RISCV] Implement isLoadFromStackSlot and isStoreToStackSlot
This causes some slight shuffling but no meaningful codegen differences on the 
corpus I used for testing, but it has a larger impact when combined with e.g. 
rematerialisation. Regardless, it makes sense to report as accurate 
target-specific information as possible.

llvm-svn: 330949
2018-04-26 15:34:27 +00:00
Benjamin Kramer
9bbeaa7c56 [NVPTX] Make the legalizer expand shufflevector of <2 x half>
There's no direct instruction for this, but it's trivially implemented
with two movs. Without this the code generator just dies when
encountering a shufflevector.

Differential Revision: https://reviews.llvm.org/D46116

llvm-svn: 330948
2018-04-26 15:26:29 +00:00
Sanjay Patel
baec2ad5a7 [DAGCombiner] refactor FP->int->FP folds; NFC
As discussed in the post-review comments for rL330437,
we need to guard this fold to allow existing code to
keep working with the undefined behavior that they've
come to rely on.

That would mean duplicating more code than we already 
have, so let's fix that first. 

llvm-svn: 330947
2018-04-26 15:20:18 +00:00
Matthew Simpson
ca67e60a6e [SLP] Add tests for transposable binary operations
These test cases are vectorizable, but we are currently unable to vectorize
them effectively.

llvm-svn: 330945
2018-04-26 14:50:04 +00:00
Alex Bradbury
0f0487bdb7 [RISCV] Implement isZextFree
This returns true for 8-bit and 16-bit loads, allowing LBU/LHU to be selected
and avoiding unnecessary masks.

llvm-svn: 330943
2018-04-26 14:04:18 +00:00
Alex Bradbury
67f9cb4d52 [RISCV] Add test case showing suboptimal codegen when loading unsigned char/short
Implementing isZextFree will allow lbu or lhu to be selected rather than 
lb+mask and lh+mask.

llvm-svn: 330942
2018-04-26 14:00:35 +00:00