160222 Commits

Author SHA1 Message Date
Sanjay Patel
9f03a7b3de [x86] preserve test intent by removing undef
D43141 proposes to correct undef folding in the DAG,
and this test would not survive that change.

llvm-svn: 324817
2018-02-10 15:36:23 +00:00
Sanjay Patel
ee7713735c [x86] preserve test intent by removing undef
D43141 proposes to correct undef folding in the DAG,
and this test would not survive that change.

llvm-svn: 324816
2018-02-10 15:28:08 +00:00
Simon Pilgrim
897f41ab36 Fix Wdocumentation warning. NFCI.
llvm-svn: 324815
2018-02-10 15:14:00 +00:00
Sanjay Patel
8ce897317a [ARM] preserve test intent by removing undef
D43141 proposes to correct undef folding in the DAG,
and this test would not survive that change.

llvm-svn: 324814
2018-02-10 15:14:00 +00:00
Simon Pilgrim
4cb93d0636 Fix Wdocumentation warnings. NFCI.
llvm-svn: 324813
2018-02-10 15:02:07 +00:00
Simon Pilgrim
1a83e2b859 [X86][SSE] Regenerate old sitofp v2i32 test
llvm-svn: 324812
2018-02-10 14:45:58 +00:00
Craig Topper
6403919bfe [X86] Custom legalize (v2i1 (fp_to_uint/fp_to_sint v2f64)) without AVX512VL.
Strangely the code was already present, just the setOperationAction wasn't being called without VLX.

llvm-svn: 324806
2018-02-10 08:39:31 +00:00
Craig Topper
4735eaf00e [X86] Legalize zero extends from vXi1 to vXi16/vXi32/vXi64 using a sign extend and a shift.
This avoids a constant pool load to create 1.

The int->float are showing converts to mask and back. We probably need to widen inputs to sint_to_fp/uint_to_fp before type legalization.

llvm-svn: 324805
2018-02-10 08:06:52 +00:00
Craig Topper
849912b820 [X86] Teach combineExtSetcc to handle ZERO_EXTEND by widening the setcc and then masking. A later DAG combine will convert to a shift.
This helps to avoid a constant pool load needed to zero extend from the mask.

llvm-svn: 324804
2018-02-10 08:06:49 +00:00
Fangrui Song
ac9ebc41a2 [utils] Refactor utils/update_{,llc_}test_checks.py to share more code
Summary:
This revision refactors 1. parser 2. CHECK line adder of utils/update_{,llc_}test_checks.py
so that thir functionality can be re-used by other utility scripts (e.g.  D42712)

Reviewers: asb, craig.topper, RKSimon, echristo

Subscribers: llvm-commits, spatel

Differential Revision: https://reviews.llvm.org/D42805

llvm-svn: 324803
2018-02-10 05:01:33 +00:00
Nirav Dave
8ce2bc977c [DAG] Make early exit hasPredecessorHelper return true. NFCI.
All uses conservatively assume in early exit case that it will be a
predecessor. Changing default removes checking code in all uses.

llvm-svn: 324797
2018-02-10 02:41:22 +00:00
Craig Topper
e10a87bee0 [X86] Teach combineInsertSubvector how to combine some k-register insert_subvectors and extract_subvector sequences to remove extra zeroing.wq
llvm-svn: 324791
2018-02-10 01:00:41 +00:00
George Karpenkov
8a94c746f9 Make LLVM timer reprintable: that is, make more than one print action on the same timer feasible
Currently, each LLVM timer can be only printed once, as the act of
printing clears the timer.

Moreover, the current printing mechanism implicitly assumes that the
timer is stopped -- and prints zero otherwise.
This patch relaxes this assumption and makes printing statistics
multiple time a possibility.

Differential Revision: https://reviews.llvm.org/D43136

llvm-svn: 324788
2018-02-10 00:38:21 +00:00
David Blaikie
7c35687d1c REQUIRES: shell a couple of tests that require the shell
One test uses diff, the other tries to change the PATH which doesn't
seem to work well ('not' is no longer accessible/found after the PATH is
changed - I think $PATH isn't expanded when setting PATH).

llvm-svn: 324787
2018-02-10 00:14:54 +00:00
Mircea Trofin
46b3a67bda [LV] Fix analyzeInterleaving when -pass-remarks enabled
Summary:
If -pass-remarks=loop-vectorize, atomic ops will be seen by
analyzeInterleaving(), even though canVectorizeMemory() == false. This
is because we are requesting extra analysis instead of bailing out.

In such a case, we end up with a Group in both Load- and StoreGroups,
and then we'll try to access freed memory when traversing LoadGroups after having had released the Group when  iterating over StoreGroups.

The fix is to include mayWriteToMemory() when validating that two
instructions are the same kind of memory operation.

Reviewers: mssimpso, davidxl

Reviewed By: davidxl

Subscribers: hsaito, fhahn, llvm-commits

Differential Revision: https://reviews.llvm.org/D43064

llvm-svn: 324786
2018-02-10 00:07:45 +00:00
Daniel Neilson
44baaf322b [Hexagon] Update uses of deprecated IRBuilder CreateMemCpy/Move calls
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
Hexagon LoopIdiom pass to cease using the old IRBuilder createMemCpy/createMemMove
single-alignment APIs in favour of the new API that allows setting source and
destination alignments independently.

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 )
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

llvm-svn: 324784
2018-02-09 23:33:35 +00:00
Alexander Shaposhnikov
ec7f07b81d [llvm-objcopy] Make modifications in-place if output is not specified
If the output file is not specified make the modifications in-place 
(like binutils objcopy does). In particular, this fixes 
the behavior of Clang -gsplit-dwarf (if Clang is configured to use llvm-objcopy), 
previously it was creating .dwo files, but still leaving *dwo* sections in 
the original binary.

Test plan: make check-all

Differential revision: https://reviews.llvm.org/D42873

llvm-svn: 324783
2018-02-09 23:33:31 +00:00
Craig Topper
13cd406305 [X86] Teach lower1BitVectorShuffle to recognize shuffles that are just filling upper elements with zero. Replace with insert_subvector.
There's still some extra kshifts in one of the modified test cases here, but hopefully that's only a DAG combine away.

llvm-svn: 324782
2018-02-09 23:32:27 +00:00
Daniel Neilson
38b05fb295 [ARMFastISel] Replace deprecated calls to MemoryIntrinsic::getAlignment() (NFCI)
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
ARMFastISel 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 )
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

llvm-svn: 324781
2018-02-09 23:31:37 +00:00
Justin Bogner
8b37edeaaa CMake: Allow specifying arbitrary CCACHE parameters
Introduces the LLVM_CCACHE_PARAMS cmake variable, which can be used to
pass arbitrary parameters to ccache invocations.

llvm-svn: 324779
2018-02-09 23:25:23 +00:00
Dan Gohman
c7f69b68dc [WebAssembly] Add mechanisms for specifying an explicit import module name.
This adds a wasm-import-module function attribute and a .import_module
assembler directive, for specifying module import names for WebAssembly.
Currently these may only be used for function symbols; global variables
may be considered in the future.

WebAssembly has a two-level namespace scheme for symbols, and it's
normally the linker's job to assign the module name, which is the
first-level name. The attributes here allow users to specify their
own module names explicitly, which is useful for tools generating
bindings to modules defined in other languages.

This feature is not fully usable yet. It will evolve along with the
ongoing symbol table and lld changes.

Differential Revision: https://reviews.llvm.org/D42520

llvm-svn: 324778
2018-02-09 23:13:22 +00:00
Dan Gohman
35ee4ddb64 [WebAssembly] Add an LLVM_FALLTHROUGH to address a warning. NFC.
llvm-svn: 324777
2018-02-09 22:59:01 +00:00
Daniel Neilson
fc160b0f2a [AMDGPUPromoteAlloca] Replace deprecated memory intrinsic APIs (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
AMDGPUPromoteAlloca pass to cease using:
1) The old getAlignment() API of MemoryIntrinsic in favour of getting source & dest specific
alignments through the new API.
2) The old IRBuilder createMemCpy/createMemMove single-alignment APIs in favour of the new
API that allows setting source and destination alignments independently.

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, r323891, rL324148, rL324273, rL324278,
rL324384, rL324395, rL324402, rL324626, rL324642, rL324653, rL324654, rL324773 )
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

llvm-svn: 324774
2018-02-09 21:56:15 +00:00
Daniel Neilson
a52d8f7587 [AArch64FastISel] 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
AArch64FastISel 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, r323891, rL324148, rL324273, rL324278,
rL324384, rL324395, rL324402, rL324626, rL324642, rL324653, rL324654 )
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

llvm-svn: 324773
2018-02-09 21:49:29 +00:00
Francis Visoiu Mistrih
a26c70efb8 [X86][MC] Fix assembling rip-relative addressing + immediate displacements
In the rare case where the input contains rip-relative addressing with
immediate displacements, *and* the instruction ends with an immediate,
we encode the instruction in the wrong way:

movl $12345678, 0x400(%rdi) // all good, no rip-relative addr
movl %eax, 0x400(%rip) // all good, no immediate at the end of the instruction
movl $12345678, 0x400(%rip) // fails, encodes address as 0x3fc(%rip)

Offset is a label:

movl $12345678, foo(%rip)

we want to account for the size of the immediate (in this case,
$12345678, 4 bytes).

Offset is an immediate:

movl $12345678, 0x400(%rip)

we should not account for the size of the immediate, assuming the
immediate offset is what the user wanted.

Differential Revision: https://reviews.llvm.org/D43050

llvm-svn: 324772
2018-02-09 21:47:07 +00:00
Matt Davis
5f06c755a5 [CodeGen] Add lifetime markers to the list of meta-instructions.
Summary:
Since the lifetime markers are metadata instructions, they should probably be treated as such by the isMetaInstruction predicate.
There was no issue that provoked this change, I just ran across it while investigating another issue.

Reviewers: aprantl, MatzeB

Reviewed By: aprantl

Subscribers: llvm-commits

Differential Revision: https://reviews.llvm.org/D43111

llvm-svn: 324771
2018-02-09 21:34:34 +00:00
Sam Clegg
8287e385f0 [WebAssebmly] Report undefined symbols correctly in objdump
Peviously we were reporting undefined symbol as being defined
by the IMPORT sections.

This change reports undefined symbols in the same that other
formats do, and also removes the need to store the section
with each symbol (since it can be derived from the symbol
type).

Differential Revision: https://reviews.llvm.org/D43101

llvm-svn: 324770
2018-02-09 20:21:50 +00:00
Francis Visoiu Mistrih
25efe28daf [CodeGen] Print predecessors as MIR comments in -debug output
Make -debug MBB headers more copy-pastable into mir files.

llvm-svn: 324769
2018-02-09 19:46:02 +00:00
Kevin Enderby
92c00fc744 llvm-objdump when printing the Objective-C meta data also prints the Swift ABI
from the value stored in swift_version bits in the flags field in the
objc_image_info struct.  ABI version 3 thru 6 were previously added but this
code was not updated to print the Swift version.

rdar://35624067

llvm-svn: 324767
2018-02-09 19:31:27 +00:00
Evandro Menezes
4903f13b51 [AArch64] Adjust the cost model for Exynos M3
Fix the modeling of transfers between a generic register and a partial ASIMD
one.

llvm-svn: 324766
2018-02-09 19:26:11 +00:00
Vedant Kumar
7748828dee [Utils] Salvage debug info from dead 'or' instructions
Extend salvageDebugInfo to preserve the debug info from a dead 'or'
with a constant.

Patch by Ismail Badawi!

Differential Revision: https://reviews.llvm.org/D43129

llvm-svn: 324764
2018-02-09 19:19:55 +00:00
Krzysztof Parzyszek
69668b03b1 [Hexagon] Add code to select QTRUE and QFALSE
Fixes http://llvm.org/PR36320.

llvm-svn: 324763
2018-02-09 19:10:46 +00:00
Matt Arsenault
2d0724382e Declare PostDominatorTree as a class
Before it was declared at a struct, which differs from
DominatorTree. Make it a class so both can be declared
the same way without hitting the warning about mismatched
struct vs. class declarations.

llvm-svn: 324760
2018-02-09 18:41:42 +00:00
Artem Belevich
00d06ddc76 [tablegen] Fixed few !foreach evaluation issues.
* !foreach on lists didn't evaluate operands of the RHS operator.
  This made nested operators silently fail.
* A typo in the code could result in a wrong value substituted
  for an operation which produced a false '!foreach requires an operator' error.
* Keep recursion over the DAG within ForeachHelper. This simplifies
  things a bit as we no longer need to pass the Type around in order
  to prevent recursion.

Differential Revision: https://reviews.llvm.org/D43083

llvm-svn: 324758
2018-02-09 18:37:55 +00:00
Steven Wu
40e575fa49 [ThinLTO] Teach ThinLTO about auto hide symbols
Summary:
For symbols that has linkonce_odr linkage and unnamed_addr, it can be
auto hide by linker to avoid weak external symbols. Teach ThinLTO to
perform auto hide so it can safely promote linkonce_odr to weak symbols
without breaking this nice property.

Reviewers: tejohnson, mehdi_amini

Reviewed By: tejohnson

Subscribers: inglorion, eraman, rnk, pcc, llvm-commits

Differential Revision: https://reviews.llvm.org/D43130

llvm-svn: 324757
2018-02-09 18:34:08 +00:00
Sanjay Patel
6201ac53ac [x86] remove duplicate undef tests; NFC
These are incomplete and were made redundant with the consolidation in:
https://reviews.llvm.org/rL324678

llvm-svn: 324754
2018-02-09 17:46:38 +00:00
Simon Pilgrim
19d4031f81 [InstCombine] Add vector xor tests
This doesn't cover everything in InstCombiner.visitXor yet, but increases coverage for a lot of tests

llvm-svn: 324753
2018-02-09 17:45:45 +00:00
Matt Arsenault
c2c6e1d5e1 AMDGPU: Remove tied operand from si_else
llvm-svn: 324751
2018-02-09 17:18:38 +00:00
Rafael Espindola
1198708f0f Emit smaller exception tables for non-SJLJ mode.
* Use uleb128 for code offsets in the LSDA call site table.
* Omit the TTBase offset if the type table is empty.

This change can reduce the size of the DWARF/Itanium LSDA by about half.

Patch by Ryan Prichard!

llvm-svn: 324750
2018-02-09 17:13:37 +00:00
Rafael Espindola
ce93beb88e Use assembler expressions to lay out the EH LSDA.
Rely on the assembler to finalize the layout of the DWARF/Itanium
exception-handling LSDA. Rather than calculate the exact size of each
thing in the LSDA, use assembler directives:

    To emit the offset to the TTBase label:

.uleb128 .Lttbase0-.Lttbaseref0
.Lttbaseref0:

    To emit the size of the call site table:

.uleb128 .Lcst_end0-.Lcst_begin0
.Lcst_begin0:
... call site table entries ...
.Lcst_end0:

    To align the type info table:

... action table ...
.balign 4
.long _ZTIi
.long _ZTIl
.Lttbase0:

Using assembler directives simplifies the compiler and allows switching
the encoding of offsets in the call site table from udata4 to uleb128 for
a large code size savings. (This commit does not change the encoding.)

The combination of the uleb128 followed by a balign creates an unfortunate
dependency cycle that the assembler must sometimes resolve either by
padding an LEB or by inserting zero padding before the type table. See
PR35809 or GNU as bug 4029.

Patch by Ryan Prichard!

llvm-svn: 324749
2018-02-09 17:00:25 +00:00
Matt Arsenault
006d5f5a93 Reapply "AMDGPU: Add 32-bit constant address space"
This reverts r324494 and reapplies r324487.

llvm-svn: 324747
2018-02-09 16:57:57 +00:00
Matt Arsenault
d3379ccb46 AMDGPU: Fix layering issue
Move utility function that depends on codegen.
Fixes build with r324487 reapplied.

llvm-svn: 324746
2018-02-09 16:57:48 +00:00
Evandro Menezes
3e3dc1fc3a [AArch64] Refactor stand alone methods (NFC)
Make stand alone methods in AArch64InstrInfo static.

llvm-svn: 324745
2018-02-09 16:14:41 +00:00
David Blaikie
286c0dddf3 Pre-emptively fix test case for windows path separators
llvm-svn: 324740
2018-02-09 15:39:04 +00:00
David Blaikie
84cd8d41be Remove some unnecessary REQUIRES: shell from a couple of llvm-symbolizer tests
llvm-svn: 324738
2018-02-09 15:33:39 +00:00
Krzysztof Parzyszek
f1b89ae731 [Hexagon] Express calling conventions via .td file instead of hand-coding
Additionally, simplify the rest of the argument/parameter lowering code.

llvm-svn: 324737
2018-02-09 15:30:02 +00:00
Stefan Maksimovic
79485acf31 [DebugInfo] Don't insert DEBUG_VALUE after terminators
r314974 introduced insertion of DEBUG_VALUEs after
each redefinition of debug value register in the slot index range.

In case the instruction redefining the debug value register
was a terminator, machine verifier would complain since it
enforces the rule of no non-terminator instructions
following the first terminator.

Differential Revision: https://reviews.llvm.org/D42801

llvm-svn: 324734
2018-02-09 14:03:26 +00:00
Stefan Maksimovic
c580e79901 [SelectionDAG] Provide adequate register class for RegisterSDNode
When adding operands to machine instructions in case of
RegisterSDNodes, generate a COPY node in case the register class
does not match the one in the instruction definition.

Differental Revision: https://reviews.llvm.org/D35561

llvm-svn: 324733
2018-02-09 13:55:25 +00:00
Oliver Stannard
dd504a4274 [ELF] Print the .type assembly directive correctly for STT_NOTYPE
The llvm assembly parser and gas both accept "@notype" in the .type
assembly directive, but we were printing it as "@no_type", which isn't
accepted by either assembler.

Differential revision: https://reviews.llvm.org/D43116

llvm-svn: 324731
2018-02-09 13:34:39 +00:00
Simon Dardis
58481a2437 [mips] UnXFAIL gprestore.ll test.
Repurpose this previously XFAIL'd test to check that jalr uses $25
as per ABI requirements for PIC code.

llvm-svn: 324729
2018-02-09 10:46:16 +00:00