OSDN Git Service
Philip Reames [Tue, 11 Jun 2019 22:43:25 +0000 (22:43 +0000)]
Generalize icmp matching in IndVars' eliminateTrunc
We were only matching RHS being a loop invariant value, not the inverse. Since there's nothing which appears to canonicalize loop invariant values to RHS, this means we missed cases.
Differential Revision: https://reviews.llvm.org/D63112
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@363108
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Sanjay Patel [Tue, 11 Jun 2019 22:25:18 +0000 (22:25 +0000)]
[Analysis] add isSplatValue() for vectors in IR
We have the related getSplatValue() already in IR (see code just above the proposed addition).
But sometimes we only need to know that the value is a splat rather than capture the splatted
scalar value. Also, we have an isSplatValue() function already in SDAG.
Motivation - recent bugs that would potentially benefit from improved splat analysis in IR:
https://bugs.llvm.org/show_bug.cgi?id=37428
https://bugs.llvm.org/show_bug.cgi?id=42174
Differential Revision: https://reviews.llvm.org/D63138
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@363106
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Jinsong Ji [Tue, 11 Jun 2019 22:09:33 +0000 (22:09 +0000)]
[PowerPC][NFC]Remove sms-simple.ll test temporarily.
Looks like a MachinePipeliner algorithm problem found by
sanitizer-x86_64-linux-fast.
I will backout this test first while investigating the problem to
unblock buildbot.
==49637==ERROR: AddressSanitizer: heap-buffer-overflow on address
0x614000002e08 at pc 0x000004364350 bp 0x7ffe228a3bd0 sp 0x7ffe228a3bc8
READ of size 4 at 0x614000002e08 thread T0
#0 0x436434f in
llvm::SwingSchedulerDAG::checkValidNodeOrder(llvm::SmallVector<llvm::NodeSet,
8u> const&) const
/b/sanitizer-x86_64-linux-fast/build/llvm/lib/CodeGen/MachinePipeliner.cpp:3736:11
#1 0x4342cd0 in llvm::SwingSchedulerDAG::schedule()
/b/sanitizer-x86_64-linux-fast/build/llvm/lib/CodeGen/MachinePipeliner.cpp:486:3
#2 0x434042d in
llvm::MachinePipeliner::swingModuloScheduler(llvm::MachineLoop&)
/b/sanitizer-x86_64-linux-fast/build/llvm/lib/CodeGen/MachinePipeliner.cpp:385:7
#3 0x433eb90 in
llvm::MachinePipeliner::runOnMachineFunction(llvm::MachineFunction&)
/b/sanitizer-x86_64-linux-fast/build/llvm/lib/CodeGen/MachinePipeliner.cpp:207:5
#4 0x428b7ea in
llvm::MachineFunctionPass::runOnFunction(llvm::Function&)
/b/sanitizer-x86_64-linux-fast/build/llvm/lib/CodeGen/MachineFunctionPass.cpp:73:13
#5 0x4d1a913 in llvm::FPPassManager::runOnFunction(llvm::Function&)
/b/sanitizer-x86_64-linux-fast/build/llvm/lib/IR/LegacyPassManager.cpp:1648:27
#6 0x4d1b192 in llvm::FPPassManager::runOnModule(llvm::Module&)
/b/sanitizer-x86_64-linux-fast/build/llvm/lib/IR/LegacyPassManager.cpp:1685:16
#7 0x4d1c06d in runOnModule
/b/sanitizer-x86_64-linux-fast/build/llvm/lib/IR/LegacyPassManager.cpp:1752:27
#8 0x4d1c06d in llvm::legacy::PassManagerImpl::run(llvm::Module&)
/b/sanitizer-x86_64-linux-fast/build/llvm/lib/IR/LegacyPassManager.cpp:1865
#9 0xa48ca3 in compileModule(char**, llvm::LLVMContext&)
/b/sanitizer-x86_64-linux-fast/build/llvm/tools/llc/llc.cpp:611:8
#10 0xa4270f in main
/b/sanitizer-x86_64-linux-fast/build/llvm/tools/llc/llc.cpp:365:22
#11 0x7fec902572e0 in __libc_start_main
(/lib/x86_64-linux-gnu/libc.so.6+0x202e0)
#12 0x971b69 in _start
(/b/sanitizer-x86_64-linux-fast/build/llvm_build_asan/bin/llc+0x971b69)
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@363105
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Jordan Rupprecht [Tue, 11 Jun 2019 21:13:01 +0000 (21:13 +0000)]
[docs] Add "GNU binutils Replacements" section to command guide
Summary:
This splits out a section in the command guide for llvm tools that can be used as replacements for GNU tools. For pages that didn't exist, I added stub pages that can be individually filled in by followup patches.
Tested by running `ninja docs-llvm-html` and inspecting locally.
Reviewers: jhenderson, MaskRay, grimar, alexshap
Reviewed By: jhenderson, MaskRay, grimar
Subscribers: smeenai, arphaman, llvm-commits
Tags: #llvm
Differential Revision: https://reviews.llvm.org/D63014
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@363100
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Amara Emerson [Tue, 11 Jun 2019 19:58:06 +0000 (19:58 +0000)]
[GlobalISel] Add a G_JUMP_TABLE opcode.
This opcode generates a pointer to the address of the jump table
specified by the source operand, which is a jump table index.
It will be used in conjunction with an upcoming G_BRJT opcode to support
jump table codegen with GlobalISel.
Differential Revision: https://reviews.llvm.org/D63111
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@363096
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Alina Sbirlea [Tue, 11 Jun 2019 19:09:34 +0000 (19:09 +0000)]
[MemorySSA] When applying updates, clean unnecessary Phis.
Summary: After applying a set of insert updates, there may be trivial Phis left over. Clean them up.
Reviewers: george.burgess.iv
Subscribers: jlebar, Prazek, llvm-commits
Tags: #llvm
Differential Revision: https://reviews.llvm.org/D63033
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@363094
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Cameron McInally [Tue, 11 Jun 2019 18:55:13 +0000 (18:55 +0000)]
[NFC][CodeGen] Add unary FNeg tests to X86/combine-fcopysign.ll X86/dag-fmf-cse.ll X86/fast-isel-fneg.ll X86/fdiv.ll
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@363093
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Alina Sbirlea [Tue, 11 Jun 2019 18:27:49 +0000 (18:27 +0000)]
Only passes that preserve MemorySSA must mark it as preserved.
Summary:
The method `getLoopPassPreservedAnalyses` should not mark MemorySSA as
preserved, because it's being called in a lot of passes that do not
preserve MemorySSA.
Instead, mark the MemorySSA analysis as preserved by each pass that does
preserve it.
These changes only affect the new pass mananger.
Reviewers: chandlerc
Subscribers: mehdi_amini, jlebar, Prazek, george.burgess.iv, llvm-commits
Tags: #llvm
Differential Revision: https://reviews.llvm.org/D62536
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@363091
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Amy Huang [Tue, 11 Jun 2019 18:02:39 +0000 (18:02 +0000)]
Deduplicate S_CONSTANTs in LLD.
Summary: Deduplicate S_CONSTANTS when linking, if they have the same value.
Reviewers: rnk
Subscribers: hiraditya, llvm-commits
Tags: #llvm
Differential Revision: https://reviews.llvm.org/D63151
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@363089
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Jinsong Ji [Tue, 11 Jun 2019 17:40:39 +0000 (17:40 +0000)]
[PowerPC] Enable MachinePipeliner for P9 with -ppc-enable-pipeliner
Implement necessary target hooks to enable MachinePipeliner for P9 only.
The pass is off by default, can be enabled with -ppc-enable-pipeliner for P9.
Differential Revision: https://reviews.llvm.org/D62164
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@363085
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Cameron McInally [Tue, 11 Jun 2019 17:05:36 +0000 (17:05 +0000)]
[NFC][CodeGen] Add unary fneg tests to X86/fma-fneg-combine.ll
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@363084
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Jonas Devlieghere [Tue, 11 Jun 2019 16:42:42 +0000 (16:42 +0000)]
[Path] Set FD to -1 in moved-from TempFile
When moving a temp file, explicitly set the file descriptor to -1 so we
can never accidentally close the moved-from TempFile.
Differential revision: https://reviews.llvm.org/D63087
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@363083
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Cameron McInally [Tue, 11 Jun 2019 16:21:21 +0000 (16:21 +0000)]
[InstCombine] Handle -(X-Y) --> (Y-X) for unary fneg when NSZ
Differential Revision: https://reviews.llvm.org/D62612
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@363082
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James Henderson [Tue, 11 Jun 2019 15:58:10 +0000 (15:58 +0000)]
[docs][llvm-nm] Add darwin as --format option
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@363081
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Cameron McInally [Tue, 11 Jun 2019 15:45:41 +0000 (15:45 +0000)]
[InstCombine] Update fptrunc (fneg x)) -> (fneg (fptrunc x) for unary FNeg
Differential Revision: https://reviews.llvm.org/D62629
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@363080
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Sander de Smalen [Tue, 11 Jun 2019 15:28:13 +0000 (15:28 +0000)]
Fix docs build issue introduced by r363035
Replacing '.. code-block:: llvm' by '::' is a quick fix to the
build warning/error: Could not lex literal_block as "llvm".
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@363079
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Nico Weber [Tue, 11 Jun 2019 15:22:28 +0000 (15:22 +0000)]
lld-link: Reject more than one resource .obj file
Users are exepcted to pass all .res files to the linker, which then
merges all the resource in all .res files into a tree structure and then
converts the final tree structure to a .obj file with .rsrc$01 and
.rsrc$02 sections and then links that.
If the user instead passes several .obj files containing such resources,
the correct thing to do would be to have custom code to merge the trees
in the resource sections instead of doing normal section merging -- but
link.exe rejects if multiple resource obj files are passed in with
LNK4078, so let lld-link do that too instead of silently writing broken
.rsrc sections in that case.
The only real way to run into this is if users manually convert .res
files to .obj files by running cvtres and then handing the resulting
.obj files to lld-link instead, which in practice likely never happens.
(lld-link is slightly stricter than link.exe now: If link.exe is passed
one .obj file created by cvtres, and a .res file, for some reason it
just emits a warning instead of an error and outputs strange looking
data. lld-link now errors out on mixed input like this.)
One way users could accidentally run into this is the following
scenario: If a .res file is passed to lib.exe, then lib.exe calls
cvtres.exe on the .res file before putting it in the output .lib.
(llvm-lib currently doesn't do this.)
link.exe's /wholearchive seems to only add obj files referenced from the
static library index, but lld-link current really adds all files in the
archive. So if lld-link /wholearchive is used with .lib files produced
by lib.exe and .res files were among the files handed to lib.exe, we
previously silently produced invalid output, but now we error out.
link.exe's /wholearchive semantics on the other hand mean that it
wouldn't load the resource object files from the .lib file at all.
Since this scenario is probably still an unlikely corner case,
the difference in behavior here seems fine -- and lld-link might have to
change to use link.exe's /wholearchive semantics in the future anyways.
Vaguely related to PR42180.
Differential Revision: https://reviews.llvm.org/D63109
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@363078
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Simon Pilgrim [Tue, 11 Jun 2019 15:13:11 +0000 (15:13 +0000)]
[X86] Regenerate CmpISel test for future patch
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@363077
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James Henderson [Tue, 11 Jun 2019 14:55:31 +0000 (14:55 +0000)]
[docs][llvm-nm] Make --help help text consistent with other options
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@363073
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James Henderson [Tue, 11 Jun 2019 13:51:18 +0000 (13:51 +0000)]
[llvm-dwarfdump] Simplify --ignore-case help text and documentation
There was a typo in the --ignore-case help text that was copied into the
llvm-dwarfdump command-guide. Additionally, this patch simplifies the
wording, since it was unnecessarily verbose: the switch applies for
searching in general and doesn't need explicitly stating different
search modes (which might go out-of-date as options are added or
removed).
Reviwed by: JDevlieghere
Differential Revision: https://reviews.llvm.org/D63133
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@363066
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James Henderson [Tue, 11 Jun 2019 13:46:52 +0000 (13:46 +0000)]
[docs][llvm-nm] Fix documentation regarding llvm-nm reading stdin
llvm-nm reads a.out NOT stdin when no input file is specified. This
patch fixes the doc accordingly, and rephrases the surrounding sentence
slightly.
Reviewed by: grimar
Differential Revision: https://reviews.llvm.org/D63135
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@363065
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Ilya Biryukov [Tue, 11 Jun 2019 13:36:06 +0000 (13:36 +0000)]
[ARM] Fix a typo in the test from r363039
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@363063
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Lewis Revill [Tue, 11 Jun 2019 12:57:47 +0000 (12:57 +0000)]
[RISCV] Add lowering of addressing sequences for PIC
This patch allows lowering of PIC addresses by using PC-relative
addressing for DSO-local symbols and accessing the address through the
global offset table for non-DSO-local symbols.
Differential Revision: https://reviews.llvm.org/D55303
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@363058
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Lewis Revill [Tue, 11 Jun 2019 12:52:05 +0000 (12:52 +0000)]
[RISCV][NFC] Add missing test file for D54093
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@363057
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Lewis Revill [Tue, 11 Jun 2019 12:42:13 +0000 (12:42 +0000)]
[RISCV] Lower inline asm constraints I, J & K for RISC-V
This validates and lowers arguments to inline asm nodes which have the
constraints I, J & K, with the following semantics (equivalent to GCC):
I: Any 12-bit signed immediate.
J: Immediate integer zero only.
K: Any 5-bit unsigned immediate.
Differential Revision: https://reviews.llvm.org/D54093
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@363054
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Mikhail Maltsev [Tue, 11 Jun 2019 12:04:32 +0000 (12:04 +0000)]
[ARM] First MVE instructions: scalar shifts.
This introduces a new decoding table for MVE instructions, and starts
by adding the family of scalar shift instructions that are part of the
MVE architecture extension: saturating shifts within a single GPR, and
long shifts across a pair of GPRs (both saturating and normal).
Some of these shift instructions have only 3-bit register fields in
the encoding, with the low bit fixed. So they can only address an odd
or even numbered GPR (depending on the operand), and therefore I add
two new register classes, GPREven and GPROdd.
Differential Revision: https://reviews.llvm.org/D62668
Change-Id: Iad95d5f83d26aef70c674027a184a6b1e0098d33
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@363051
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Nico Weber [Tue, 11 Jun 2019 11:26:50 +0000 (11:26 +0000)]
Let writeWindowsResourceCOFF() take a TimeStamp parameter
For lld, pass in Config->Timestamp (which is set based on lld's
/timestamp: and /Brepro flags). Since the writeWindowsResourceCOFF()
data is only used in-memory by LLD and the obj's timestamp isn't used
for anything in the output, this doesn't change behavior.
For llvm-cvtres, add an optional /timestamp: parameter, and use the
current behavior of calling time() if the parameter is not passed in.
This doesn't really change observable behavior (unless someone passes
/timestamp: to llvm-cvtres, which wasn't possible before), but it
removes the last unqualified call to time() from llvm/lib, which seems
like a good thing.
Differential Revision: https://reviews.llvm.org/D63116
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@363050
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David Bolvansky [Tue, 11 Jun 2019 11:09:25 +0000 (11:09 +0000)]
[NFC] Fixed arm/aarch64 test
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@363049
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Simon Pilgrim [Tue, 11 Jun 2019 11:00:23 +0000 (11:00 +0000)]
[TargetLowering] Add allowsMemoryAccess(MachineMemOperand) helper wrapper. NFCI.
As suggested by @arsenm on D63075 - this adds a TargetLowering::allowsMemoryAccess wrapper that takes a Load/Store node's MachineMemOperand to handle the AddressSpace/Alignment arguments and will also implicitly handle the MachineMemOperand::Flags change in D63075.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@363048
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Orlando Cazalet-Hyams [Tue, 11 Jun 2019 10:37:20 +0000 (10:37 +0000)]
[DebugInfo@O2][LoopVectorize] pr39024: Vectorized code linenos step through loop even after completion
Summary:
Bug: https://bugs.llvm.org/show_bug.cgi?id=39024
The bug reports that a vectorized loop is stepped through 4 times and each step through the loop seemed to show a different path. I found two problems here:
A) An incorrect line number on a preheader block (for.body.preheader) instruction causes a step into the loop before it begins.
B) Instructions in the middle block have different line numbers which give the impression of another iteration.
In this patch I give all of the middle block instructions the line number of the scalar loop latch terminator branch. This seems to provide the smoothest debugging experience because the vectorized loops will always end on this line before dropping into the scalar loop. To solve problem A I have altered llvm::SplitBlockPredecessors to accommodate loop header blocks.
I have set up a separate review D61933 for a fix which is required for this patch.
Reviewers: samsonov, vsk, aprantl, probinson, anemet, hfinkel, jmorse
Reviewed By: hfinkel, jmorse
Subscribers: jmorse, javed.absar, eraman, kcc, bjope, jmellorcrummey, hfinkel, gbedwell, hiraditya, zzheng, llvm-commits
Tags: #llvm, #debug-info
Differential Revision: https://reviews.llvm.org/D60831
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@363046
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George Rimar [Tue, 11 Jun 2019 10:28:15 +0000 (10:28 +0000)]
[llvm-readobj] - Do not use precompiled binary in elf-broken-dynsym-link.test
Now we can remove the "TODO" since https://bugs.llvm.org/show_bug.cgi?id=42216
was fixed.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@363045
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James Henderson [Tue, 11 Jun 2019 10:20:07 +0000 (10:20 +0000)]
[llvm-dwarfdump] Add -o to help text and remove --out-file from doc
-o is in the documentation, but not in the llvm-dwarfdump help text.
This patch adds it by inverting the -o and --out-file aliasing. It also
removes --out-file from the documentation, since we don't really want
people to be using this switch in practice.
Reviewed by: aprantl, JDevlieghere, dblaikie
Differential Revision: https://reviews.llvm.org/D63013
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@363044
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Simon Tatham [Tue, 11 Jun 2019 10:09:12 +0000 (10:09 +0000)]
[ARM] Fix unused-variable warning in rL363039.
The variable `OffsetMask` is currently only used in an assertion, so
if assertions are compiled out and -Werror is enabled, it becomes a
build failure.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@363043
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George Rimar [Tue, 11 Jun 2019 10:00:51 +0000 (10:00 +0000)]
[yaml2elf] - Check we are able to set custom sh_link for .symtab/.dynsym
Allow using both custom numeric and string values for Link field of the
dynamic and regular symbol tables.
Differential revision: https://reviews.llvm.org/D63077
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@363042
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Simon Pilgrim [Tue, 11 Jun 2019 09:44:33 +0000 (09:44 +0000)]
[DAGCombine] GetNegatedExpression - constant float vector support (PR42105)
Add support for negation of constant build vectors.
Differential Revision: https://reviews.llvm.org/D62963
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@363040
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Simon Tatham [Tue, 11 Jun 2019 09:29:18 +0000 (09:29 +0000)]
[ARM] Add the non-MVE instructions in Arm v8.1-M.
This adds support for the new family of conditional selection /
increment / negation instructions; the low-overhead branch
instructions (e.g. BF, WLS, DLS); the CLRM instruction to zero a whole
list of registers at once; the new VMRS/VMSR and VLDR/VSTR
instructions to get data in and out of 8.1-M system registers,
particularly including the new VPR register used by MVE vector
predication.
To support this, we also add a register name 'zr' (used by the CSEL
family to force one of the inputs to the constant 0), and operand
types for lists of registers that are also allowed to include APSR or
VPR (used by CLRM). The VLDR/VSTR instructions also need a new
addressing mode.
The low-overhead branch instructions exist in their own separate
architecture extension, which we treat as enabled by default, but you
can say -mattr=-lob or equivalent to turn it off.
Reviewers: dmgreen, samparker, SjoerdMeijer, t.p.northover
Reviewed By: samparker
Subscribers: miyuki, javed.absar, kristof.beyls, hiraditya, llvm-commits
Tags: #llvm
Differential Revision: https://reviews.llvm.org/D62667
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@363039
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Sander de Smalen [Tue, 11 Jun 2019 08:22:10 +0000 (08:22 +0000)]
Change semantics of fadd/fmul vector reductions.
This patch changes how LLVM handles the accumulator/start value
in the reduction, by never ignoring it regardless of the presence of
fast-math flags on callsites. This change introduces the following
new intrinsics to replace the existing ones:
llvm.experimental.vector.reduce.fadd -> llvm.experimental.vector.reduce.v2.fadd
llvm.experimental.vector.reduce.fmul -> llvm.experimental.vector.reduce.v2.fmul
and adds functionality to auto-upgrade existing LLVM IR and bitcode.
Reviewers: RKSimon, greened, dmgreen, nikic, simoll, aemerson
Reviewed By: nikic
Differential Revision: https://reviews.llvm.org/D60261
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@363035
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Craig Topper [Tue, 11 Jun 2019 04:30:53 +0000 (04:30 +0000)]
[X86] Add load folding isel patterns to scalar_math_patterns and AVX512_scalar_math_fp_patterns.
Also add a FIXME for the peephole pass not being able to handle this.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@363032
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Tom Stellard [Tue, 11 Jun 2019 03:21:13 +0000 (03:21 +0000)]
Revert CMake: Make most target symbols hidden by default
This reverts r362990 (git commit
374571301dc8e9bc9fdd1d70f86015de198673bd)
This was causing linker warnings on Darwin:
ld: warning: direct access in function 'llvm::initializeEvexToVexInstPassPass(llvm::PassRegistry&)'
from file '../../lib/libLLVMX86CodeGen.a(X86EvexToVex.cpp.o)' to global weak symbol
'void std::__1::__call_once_proxy<std::__1::tuple<void* (&)(llvm::PassRegistry&),
std::__1::reference_wrapper<llvm::PassRegistry>&&> >(void*)' from file '../../lib/libLLVMCore.a(Verifier.cpp.o)'
means the weak symbol cannot be overridden at runtime. This was likely caused by different translation
units being compiled with different visibility settings.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@363028
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Peter Collingbourne [Tue, 11 Jun 2019 02:32:27 +0000 (02:32 +0000)]
Symbolize: Make DWPName a symbolizer option instead of an argument to symbolize{,Inlined}Code.
This makes the interface simpler and more consistent with the interface for
.dSYM files and fixes a bug where llvm-symbolizer would not read the dwp if
it was asked to symbolize data before symbolizing code.
Differential Revision: https://reviews.llvm.org/D63114
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@363025
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Peter Collingbourne [Tue, 11 Jun 2019 02:31:54 +0000 (02:31 +0000)]
Symbolize: Replace the Options constructor with in-class initialization. NFCI.
This is not only less code but also clearer at the use site.
Differential Revision: https://reviews.llvm.org/D63113
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@363024
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Matt Arsenault [Tue, 11 Jun 2019 01:35:07 +0000 (01:35 +0000)]
AtomicExpand: Don't crash on non-0 alloca
This now produces garbage on AMDGPU with a call to an nonexistent,
anonymous libcall but won't assert.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@363022
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Matt Arsenault [Tue, 11 Jun 2019 01:35:00 +0000 (01:35 +0000)]
AMDGPU: Expand < 32-bit atomics
Also fix AtomicExpand asserting on atomicrmw fadd/fsub.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@363021
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Nico Weber [Tue, 11 Jun 2019 01:29:11 +0000 (01:29 +0000)]
gn build: Merge r362939
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@363020
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Nico Weber [Tue, 11 Jun 2019 01:23:38 +0000 (01:23 +0000)]
gn build: Merge r362972
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@363019
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Nico Weber [Tue, 11 Jun 2019 01:13:41 +0000 (01:13 +0000)]
llvm-lib: Implement /machine: argument
And share some code with lld-link.
While here, also add a FIXME about PR42180 and merge r360150 to llvm-lib.
Differential Revision: https://reviews.llvm.org/D63021
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@363016
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Chris Bieneman [Tue, 11 Jun 2019 00:25:57 +0000 (00:25 +0000)]
Setup testing target dependencies for default runtimes
Summary: The default runtimes targets aren't getting their dependencies configured correctly which results in check-runtimes failing when built from a clean build.
Reviewers: phosek, compnerd
Reviewed By: phosek
Subscribers: mgorny, llvm-commits
Tags: #llvm
Differential Revision: https://reviews.llvm.org/D63107
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@363015
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Yi Kong [Tue, 11 Jun 2019 00:05:36 +0000 (00:05 +0000)]
[AArch64] Add more CPUs to host detection
Returns "cortex-a73" for 3rd and 4th gen Kryo; not precisely correct,
but close enough.
Differential Revision: https://reviews.llvm.org/D63099
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@363013
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Puyan Lotfi [Tue, 11 Jun 2019 00:00:25 +0000 (00:00 +0000)]
[MIR-Canon] Fixing non-determinism that was breaking bots (NFC).
An earlier fix of a subtle iterator invalidation bug had uncovered a
nondeterminism that was present in the MultiUsers bag. Problem was that
MultiUsers was being looked up using pointers.
This patch is an NFC change that numbers each multiuser and processes each in
numbered order. This fixes the test failure on netbsd and will likely fix the
green-dragon bot too.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@363012
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Daniel Sanders [Mon, 10 Jun 2019 23:52:38 +0000 (23:52 +0000)]
Break a couple more false dependencies on target libraries
Summary: Repeat r361567 for a few more tools.
Reviewers: bogner
Reviewed By: bogner
Subscribers: mgorny, llvm-commits
Tags: #llvm
Differential Revision: https://reviews.llvm.org/D62438
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@363011
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Jonas Devlieghere [Mon, 10 Jun 2019 23:30:20 +0000 (23:30 +0000)]
[dsymutil] Remove stale comment (NFC)
The comment was no longer relevant after r362621.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@363008
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Shoaib Meenai [Mon, 10 Jun 2019 23:24:02 +0000 (23:24 +0000)]
[Support] Explicitly detect recursive response files
Previous detection relied upon an arbitrary hard coded limit of 21
response files, which some code bases were running up against.
The new detection maintains a stack of processing response files and
explicitly checks if a newly encountered file is in the current stack.
Some bookkeeping data is necessary in order to detect when to pop the
stack.
Patch by Chris Glover.
Differential Revision: https://reviews.llvm.org/D62798
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@363005
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Rong Xu [Mon, 10 Jun 2019 23:20:04 +0000 (23:20 +0000)]
[PGO] Fix the buildbot failure in r362995
Fixed one unused variable warning.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@363004
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Philip Reames [Mon, 10 Jun 2019 23:17:10 +0000 (23:17 +0000)]
[Tests] Adjust LFTR dead-iv tests to bypass undef cases
As pointed out by Nikita in review, undef and poison need to be handled separately. Since we're no longer expecting any test improvements - just fixes for miscompiles - update the tests to bypass the existing undef check.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@363002
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Cameron McInally [Mon, 10 Jun 2019 23:02:36 +0000 (23:02 +0000)]
[NFC][CodeGen] Forgot 2 unary FNeg tests in X86/fma-intrinsics-canonical.ll
Follow-up to r362999.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@363001
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Cameron McInally [Mon, 10 Jun 2019 22:45:54 +0000 (22:45 +0000)]
[NFC][CodeGen] Add unary FNeg tests to X86/fma-intrinsics-canonical.ll
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@362999
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Tom Stellard [Mon, 10 Jun 2019 22:40:32 +0000 (22:40 +0000)]
Fix typo from r362990 to fix Windows builds
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@362997
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Rong Xu [Mon, 10 Jun 2019 22:36:27 +0000 (22:36 +0000)]
[PGO] Handle cases of non-instrument BBs
As shown in PR41279, some basic blocks (such as catchswitch) cannot be
instrumented. This patch filters out these BBs in PGO instrumentation.
It also sets the profile count to the fail-to-instrument edge, so that we
can propagate the counts in the CFG.
Differential Revision: https://reviews.llvm.org/D62700
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@362995
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Philip Reames [Mon, 10 Jun 2019 22:33:20 +0000 (22:33 +0000)]
[Tests] Split an LFTR dead-iv case
There are two interesting sub-cases here. 1) Switching IVs is legal, but only in pre-increment form. and 2) Switching IVs is legal, and so is post-increment form.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@362993
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Tom Stellard [Mon, 10 Jun 2019 22:12:56 +0000 (22:12 +0000)]
CMake: Make most target symbols hidden by default
Summary:
For builds with LLVM_BUILD_LLVM_DYLIB=ON and BUILD_SHARED_LIBS=OFF
this change makes all symbols in the target specific libraries hidden
by default.
A new macro called LLVM_EXTERNAL_VISIBILITY has been added to mark symbols in these
libraries public, which is mainly needed for the definitions of the
LLVMInitialize* functions.
This patch reduces the number of public symbols in libLLVM.so by about
25%. This should improve load times for the dynamic library and also
make abi checker tools, like abidiff require less memory when analyzing
libLLVM.so
One side-effect of this change is that for builds with
LLVM_BUILD_LLVM_DYLIB=ON and LLVM_LINK_LLVM_DYLIB=ON some unittests that
access symbols that are no longer public will need to be statically linked.
Before and after public symbol counts (using gcc 8.2.1, ld.bfd 2.31.1):
nm before/libLLVM-9svn.so | grep ' [A-Zuvw] ' | wc -l
36221
nm after/libLLVM-9svn.so | grep ' [A-Zuvw] ' | wc -l
26278
Reviewers: chandlerc, beanz, mgorny, rnk, hans
Reviewed By: rnk, hans
Subscribers: Jim, hiraditya, michaelplatings, chapuni, jholewinski, arsenm, dschuff, jyknight, dylanmckay, sdardis, nemanjai, jvesely, nhaehnle, javed.absar, sbc100, jgravelle-google, aheejin, kbarton, fedor.sergeev, asb, rbar, johnrusso, simoncook, apazos, sabuasal, niosHD, jrtc27, zzheng, edward-jones, mgrang, atanasyan, rogfer01, MartinMosbeck, brucehoult, the_o, PkmX, jocewei, kristina, jsji, llvm-commits
Tags: #llvm
Differential Revision: https://reviews.llvm.org/D54439
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@362990
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Jessica Paquette [Mon, 10 Jun 2019 21:53:56 +0000 (21:53 +0000)]
[GlobalISel] Translate memset/memmove/memcpy from undef ptrs into nops
If the source is undef, then just don't do anything.
This matches SelectionDAG's behaviour in SelectionDAG.cpp.
Also add a test showing that we do the right thing here.
(irtranslator-memfunc-undef.ll)
Differential Revision: https://reviews.llvm.org/D63095
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@362989
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Cameron McInally [Mon, 10 Jun 2019 21:31:59 +0000 (21:31 +0000)]
[NFC][CodeGen] Add unary FNeg tests to some X86/ and XCore/ tests.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@362987
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Erik Pilkington [Mon, 10 Jun 2019 21:02:39 +0000 (21:02 +0000)]
[demangle] Vendor extended types shouldn't be considered substitution candidates
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@362983
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Philip Reames [Mon, 10 Jun 2019 20:41:27 +0000 (20:41 +0000)]
Factor out a helper function for readability and reuse in a future patch [NFC]
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@362980
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Matt Davis [Mon, 10 Jun 2019 20:38:56 +0000 (20:38 +0000)]
[Docs] [llvm-mca] Point out a caveat for using llvm-mca markers in source code.
Summary: See: https://bugs.llvm.org/show_bug.cgi?id=42173
Reviewers: andreadb, mattd, RKSimon, spatel
Reviewed By: andreadb
Subscribers: tschuett, gbedwell, llvm-commits, andreadb
Tags: #llvm
Patch by Max Marrone (maxpm)! Thanks!
Differential Revision: https://reviews.llvm.org/D63040
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@362979
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Philip Reames [Mon, 10 Jun 2019 19:45:59 +0000 (19:45 +0000)]
[Tests] Add tests for D62939 (miscompiles around dead pointer IVs)
Flesh out a collection of tests for switching to a dead IV within LFTR, both for the current miscompile, and for some cases which we should be able to handle via simple reasoning.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@362976
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Philip Reames [Mon, 10 Jun 2019 19:18:53 +0000 (19:18 +0000)]
[LFTR] Use recomputed BE count
This was discussed as part of D62880. The basic thought is that computing BE taken count after widening should produce (on average) an equally good backedge taken count as the one before widening. Since there's only one test in the suite which is impacted by this change, and it's essentially equivelent codegen, that seems to be a reasonable assertion. This change was separated from r362971 so that if this turns out to be problematic, the triggering piece is obvious and easily revertable.
For the nestedIV example from elim-extend.ll, we end up with the following BE counts:
BEFORE: (-2 + (-1 * %innercount) + %limit)
AFTER: (-1 + (sext i32 (-1 + %limit) to i64) + (-1 * (sext i32 %innercount to i64))<nsw>)
Note that before is an i32 type, and the after is an i64. Truncating the i64 produces the i32.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@362975
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Jinsong Ji [Mon, 10 Jun 2019 19:04:14 +0000 (19:04 +0000)]
[PowerPC][HTM]Fix $zero is not a GPRC register for builtin_ttest
This was found during HTM cleanup.
Adding a test for builtin_ttest would expose following issue.
*** Bad machine code: Illegal physical register for instruction ***
- function: test10
- basic block: %bb.0 entry (0xf0e57497b58)
- instruction: %5:crrc0 = TABORTWCI 0, $zero, 0
- operand 2: $zero
$zero is not a GPRC register.
LLVM ERROR: Found 1 machine code errors.
Differential Revision: https://reviews.llvm.org/D63079
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@362974
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Jordan Rupprecht [Mon, 10 Jun 2019 18:35:01 +0000 (18:35 +0000)]
[llvm-objcopy] Fix SHT_GROUP ordering.
Summary:
When llvm-objcopy sorts sections during finalization, it only sorts based on the offset, which can cause the group section to come after the sections it contains. This causes link failures when using gold to link objects created by llvm-objcopy.
Fix this for now by copying GNU objcopy's behavior of placing SHT_GROUP sections first. In the future, we may want to remove this sorting entirely to more closely preserve the input file layout.
This fixes https://bugs.llvm.org/show_bug.cgi?id=42052.
Reviewers: jakehehrlich, jhenderson, MaskRay, espindola, alexshap
Reviewed By: MaskRay
Subscribers: phuongtrang148993, emaste, arichardson, llvm-commits
Tags: #llvm
Differential Revision: https://reviews.llvm.org/D62620
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@362973
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Sanjay Patel [Mon, 10 Jun 2019 18:19:05 +0000 (18:19 +0000)]
[Analysis] add unit test file for VectorUtils; NFC
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@362972
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Philip Reames [Mon, 10 Jun 2019 17:51:13 +0000 (17:51 +0000)]
Prepare for multi-exit LFTR [NFC]
This change does the plumbing to wire an ExitingBB parameter through the LFTR implementation, and reorganizes the code to work in terms of a set of individual loop exits. Most of it is fairly obvious, but there's one key complexity which makes it worthy of consideration. The actual multi-exit LFTR patch is in D62625 for context.
Specifically, it turns out the existing code uses the backedge taken count from before a IV is widened. Oddly, we can end up with a different (more expensive, but semantically equivelent) BE count for the loop when requerying after widening. For the nestedIV example from elim-extend, we end up with the following BE counts:
BEFORE: (-2 + (-1 * %innercount) + %limit)
AFTER: (-1 + (sext i32 (-1 + %limit) to i64) + (-1 * (sext i32 %innercount to i64))<nsw>)
This is the only test in tree which seems sensitive to this difference. The actual result of using the wider BETC on this example is that we actually produce slightly better code. :)
In review, we decided to accept that test change. This patch is structured to preserve the old behavior, but a separate change will immediate follow with the behavior change. (I wanted it separate for problem attribution purposes.)
Differential Revision: https://reviews.llvm.org/D62880
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@362971
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Wolfgang Pieb [Mon, 10 Jun 2019 17:50:24 +0000 (17:50 +0000)]
[ELF][llvm-objdump] Treat dynamic tag values as virtual addresses instead of offsets
The ELF gABI requires the tag values of DT_REL, DT_RELA and DT_JMPREL to be
treated as virtual addresses. They were treated as offsets. Fixes PR41832.
Differential Revision: https://reviews.llvm.org/D62972
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@362969
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Sameer AbuAsal [Mon, 10 Jun 2019 17:15:45 +0000 (17:15 +0000)]
[RISCV] Replace map with set in getReqFeatures
Summary:
Use a set in getReqFeatures() in RISCVCompressInstEmitter instead of a map
because the index we save is not needed.
This also fixes bug 41666.
Reviewers: llvm-commits, apazos, asb, nickdesaulniers
Reviewed By: asb
Subscribers: Jim, nickdesaulniers, rbar, johnrusso, simoncook, niosHD, kito-cheng, shiva0217, jrtc27, zzheng, edward-jones, rogfer01, MartinMosbeck, brucehoult, the_o, rkruppe, PkmX, jocewei, psnobl, benna
Tags: #llvm
Differential Revision: https://reviews.llvm.org/D61412
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@362968
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Jordan Rupprecht [Mon, 10 Jun 2019 17:00:49 +0000 (17:00 +0000)]
[docs] Add 'git llvm revert' to getting started guide
Summary: This documents `git llvm revert rNNNNNN` in the getting started guide for broader visibility.
Reviewers: jyknight, mehdi_amini
Subscribers: llvm-commits
Tags: #llvm
Differential Revision: https://reviews.llvm.org/D63023
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@362966
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Andrea Di Biagio [Mon, 10 Jun 2019 16:56:25 +0000 (16:56 +0000)]
[llvm-mca] Enable bottleneck analysis when flag -all-views is specified.
Bottleneck Analysis is one of the many views available in llvm-mca. Therefore,
it should be enabled when flag -all-views is passed in input to the tool.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@362964
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Francis Visoiu Mistrih [Mon, 10 Jun 2019 16:53:37 +0000 (16:53 +0000)]
[FastISel] Skip creating unnecessary vregs for arguments
This behavior was added in r130928 for both FastISel and SD, and then
disabled in r131156 for FastISel.
This re-enables it for FastISel with the corresponding fix.
This is triggered only when FastISel can't lower the arguments and falls
back to SelectionDAG for it.
FastISel contains a map of "register fixups" where at the end of the
selection phase it replaces all uses of a register with another
register that FastISel sometimes pre-assigned. Code at the end of
SelectionDAGISel::runOnMachineFunction is doing the replacement at the
very end of the function, while other pieces that come in before that
look through the MachineFunction and assume everything is done. In this
case, the real issue is that the code emitting COPY instructions for the
liveins (physreg to vreg) (EmitLiveInCopies) is checking if the vreg
assigned to the physreg is used, and if it's not, it will skip the COPY.
If a register wasn't replaced with its assigned fixup yet, the copy will
be skipped and we'll end up with uses of undefined registers.
This fix moves the replacement of registers before the emission of
copies for the live-ins.
The initial motivation for this fix is to enable tail calls for
swiftself functions, which were blocked because we couldn't prove that
the swiftself argument (which is callee-save) comes from a function
argument (live-in), because there was an extra copy (vreg to vreg).
A few tests are affected by this:
* llvm/test/CodeGen/AArch64/swifterror.ll: we used to spill x21
(callee-save) but never reload it because it's attached to the return.
We now don't even spill it anymore.
* llvm/test/CodeGen/*/swiftself.ll: we tail-call now.
* llvm/test/CodeGen/AMDGPU/mubuf-legalize-operands.ll: I believe this
test was not really testing the right thing, but it worked because the
same registers were re-used.
* llvm/test/CodeGen/ARM/cmpxchg-O0.ll: regalloc changes
* llvm/test/CodeGen/ARM/swifterror.ll: get rid of a copy
* llvm/test/CodeGen/Mips/*: get rid of spills and copies
* llvm/test/CodeGen/SystemZ/swift-return.ll: smaller stack
* llvm/test/CodeGen/X86/atomic-unordered.ll: smaller stack
* llvm/test/CodeGen/X86/swifterror.ll: same as AArch64
* llvm/test/DebugInfo/X86/dbg-declare-arg.ll: stack size changed
Differential Revision: https://reviews.llvm.org/D62361
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@362963
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Cameron McInally [Mon, 10 Jun 2019 16:05:25 +0000 (16:05 +0000)]
[ExecutionEngine] Fix rL362941: Add UnaryOperator visitor to the interpreter
Missed break statements. This was D62881.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@362958
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Piotr Sobczak [Mon, 10 Jun 2019 15:58:51 +0000 (15:58 +0000)]
[AMDGPU] Optimize image_[load|store]_mip
Summary:
Replace image_load_mip/image_store_mip
with image_load/image_store if lod is 0.
Reviewers: arsenm, nhaehnle
Reviewed By: arsenm
Subscribers: arsenm, kzhuravl, jvesely, wdng, nhaehnle, yaxunl, dstuttard, tpr, t-tye, llvm-commits
Tags: #llvm
Differential Revision: https://reviews.llvm.org/D63073
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@362957
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Simon Tatham [Mon, 10 Jun 2019 15:58:19 +0000 (15:58 +0000)]
Revert rL362953 and its followup rL362955.
These caused a build failure because I managed not to notice they
depended on a later unpushed commit in my current stack. Sorry about
that.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@362956
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Simon Tatham [Mon, 10 Jun 2019 15:41:58 +0000 (15:41 +0000)]
[ARM] Add the non-MVE instructions in Arm v8.1-M.
This should have been part of r362953, but I had a finger-trouble
incident and committed the old rather than new version of the patch.
Sorry.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@362955
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Sanjay Patel [Mon, 10 Jun 2019 15:39:00 +0000 (15:39 +0000)]
[InstCombine] allow unordered preds when canonicalizing to fabs()
We have a known-never-nan value via 'nnan', so an unordered predicate
is the same as its ordered sibling.
Similar to:
rL362937
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@362954
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Simon Tatham [Mon, 10 Jun 2019 15:36:34 +0000 (15:36 +0000)]
[ARM] Add the non-MVE instructions in Arm v8.1-M.
This adds support for the new family of conditional selection /
increment / negation instructions; the low-overhead branch
instructions (e.g. BF, WLS, DLS); the CLRM instruction to zero a whole
list of registers at once; the new VMRS/VMSR and VLDR/VSTR
instructions to get data in and out of 8.1-M system registers,
particularly including the new VPR register used by MVE vector
predication.
To support this, we also add a register name 'zr' (used by the CSEL
family to force one of the inputs to the constant 0), and operand
types for lists of registers that are also allowed to include APSR or
VPR (used by CLRM). The VLDR/VSTR instructions also need some new
addressing modes.
The low-overhead branch instructions exist in their own separate
architecture extension, which we treat as enabled by default, but you
can say -mattr=-lob or equivalent to turn it off.
Reviewers: dmgreen, samparker, SjoerdMeijer, t.p.northover
Reviewed By: samparker
Subscribers: miyuki, javed.absar, kristof.beyls, hiraditya, llvm-commits
Tags: #llvm
Differential Revision: https://reviews.llvm.org/D62667
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@362953
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Whitney Tsang [Mon, 10 Jun 2019 15:29:07 +0000 (15:29 +0000)]
[DA] Add an option to control delinearization validity checks
Summary: Dependence Analysis performs static checks to confirm validity
of delinearization. These checks often fail for 64-bit targets due to
type conversions and integer wrapping that prevent simplification of the
SCEV expressions. These checks would also fail at compile-time if the
lower bound of the loops are compile-time unknown.
Author: bmahjour
Reviewer: Meinersbur, jdoerfert, kbarton, dmgreen, fhahn
Reviewed By: Meinersbur, jdoerfert, dmgreen
Subscribers: fhahn, hiraditya, javed.absar, llvm-commits, Whitney,
etiotto
Tag: LLVM
Differential Revision: https://reviews.llvm.org/D62610
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@362952
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Jeremy Morse [Mon, 10 Jun 2019 15:23:46 +0000 (15:23 +0000)]
[DebugInfo] Terminate all location-lists at end of block
This commit reapplies r359426 (which was reverted in r360301 due to
performance problems) and rolls in D61940 to address the performance problem.
I've combined the two to avoid creating a span of slow-performance, and to
ease reverting if more problems crop up.
The summary of D61940: This patch removes the "ChangingRegs" facility in
DbgEntityHistoryCalculator, as its overapproximate nature can produce incorrect
variable locations. An unchanging register doesn't mean a variable doesn't
change its location.
The patch kills off everything that calculates the ChangingRegs vector.
Previously ChangingRegs spotted epilogues and marked registers as unchanging if
they weren't modified outside the epilogue, increasing the chance that we can
emit a single-location variable record. Without this feature,
debug-loc-offset.mir and pr19307.mir become temporarily XFAIL. They'll be
re-enabled by D62314, using the FrameDestroy flag to identify epilogues, I've
split this into two steps as FrameDestroy isn't necessarily supported by all
backends.
The logic for terminating variable locations at the end of a basic block now
becomes much more enjoyably simple: we just terminate them all.
Other test changes: inlined-argument.ll becomes XFAIL, but for a longer term.
The current algorithm for detecting that a variable has a single-location
doesn't work in this scenario (inlined function in multiple blocks), only other
bugs were making this test work. fission-ranges.ll gets slightly refreshed too,
as the location of "p" is now correctly determined to be a single location.
Differential Revision: https://reviews.llvm.org/D61940
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@362951
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Sanjay Patel [Mon, 10 Jun 2019 15:08:22 +0000 (15:08 +0000)]
[InstCombine] add tests for fabs() with unordered preds; NFC
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@362949
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Cameron McInally [Mon, 10 Jun 2019 15:07:29 +0000 (15:07 +0000)]
[IRBuilder] Add CreateFNegFMF(...) to the IRBuilder
Differential Revision: https://reviews.llvm.org/D62521
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@362947
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Sanjay Patel [Mon, 10 Jun 2019 14:57:45 +0000 (14:57 +0000)]
[InstCombine] fix bug in canonicalization to fabs()
Forgot to translate the predicate clauses in rL362943.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@362945
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Sanjay Patel [Mon, 10 Jun 2019 14:46:36 +0000 (14:46 +0000)]
[InstCombine] change canonicalization to fabs() to use FMF on fsub
Similar to rL362909:
This isn't the ideal fix (use FMF on the select), but it's still an
improvement until we have better FMF propagation to selects and other
FP math operators.
I don't think there's much risk of regression from this change by
not including the FMF on the fcmp any more. The nsz/nnan FMF
should be the same on the fcmp and the fsub because they have the
same operand.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@362943
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Simon Tatham [Mon, 10 Jun 2019 14:43:55 +0000 (14:43 +0000)]
[ARM] Disallow PC, and optionally SP, in VMOVRH and VMOVHR.
Arm v8.1-M supports the VMOV instructions that move a half-precision
value to and from a GPR, but not if the GPR is SP or PC.
To fix this, I've changed those instructions to use the rGPR register
class instead of GPR. rGPR always excludes PC, and it excludes SP
except in the presence of the HasV8Ops target feature (i.e. Arm v8-A).
So the effect is that VMOV.F16 to and from PC is now illegal
everywhere, but VMOV.F16 to and from SP is illegal only on non-v8-A
cores (which I believe is all as it should be).
Reviewers: dmgreen, samparker, SjoerdMeijer, ostannard
Reviewed By: ostannard
Subscribers: ostannard, javed.absar, kristof.beyls, hiraditya, llvm-commits
Tags: #llvm
Differential Revision: https://reviews.llvm.org/D60704
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@362942
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Cameron McInally [Mon, 10 Jun 2019 14:38:48 +0000 (14:38 +0000)]
[ExecutionEngine] Add UnaryOperator visitor to the interpreter
This is to support the unary FNeg instruction.
Differential Revision: https://reviews.llvm.org/D62881
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@362941
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George Rimar [Mon, 10 Jun 2019 14:33:24 +0000 (14:33 +0000)]
[yaml2obj] - Remove TODOs from dynsymtab-implicit-sections-size-content.yaml. NFCI.
Now when https://bugs.llvm.org/show_bug.cgi?id=42215 is fixed,
we can remove these TODOs.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@362940
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George Rimar [Mon, 10 Jun 2019 14:23:46 +0000 (14:23 +0000)]
[llvm-readobj/llvm-readelf] - Don't fail to dump the object if .dynsym has broken sh_link field.
This is https://bugs.llvm.org/show_bug.cgi?id=42215.
GNU readelf allows to dump the objects in that case,
but llvm-readobj/llvm-readelf reports an error and stops.
The patch fixes that.
Differential revision: https://reviews.llvm.org/D63074
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@362938
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Sanjay Patel [Mon, 10 Jun 2019 14:14:51 +0000 (14:14 +0000)]
[InstCombine] allow unordered preds when canonicalizing to fabs()
PR42179:
https://bugs.llvm.org/show_bug.cgi?id=42179
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@362937
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Sanjay Patel [Mon, 10 Jun 2019 14:04:10 +0000 (14:04 +0000)]
[InstCombine] add tests for fcmp unordered pred -> fabs (PR42179); NFC
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@362936
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Andrea Di Biagio [Mon, 10 Jun 2019 13:33:54 +0000 (13:33 +0000)]
[MCA] Fix -Wunused-private-field warning after r362933. NFC
This should unbreak the buildbots.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@362935
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Andrea Di Biagio [Mon, 10 Jun 2019 12:50:08 +0000 (12:50 +0000)]
[MCA] Further refactor the bottleneck analysis view. NFCI.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@362933
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Nico Weber [Mon, 10 Jun 2019 12:49:02 +0000 (12:49 +0000)]
gn build: Merge r362913
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@362932
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George Rimar [Mon, 10 Jun 2019 12:43:18 +0000 (12:43 +0000)]
[yaml2obj/obj2yaml] - Make RawContentSection::Content and RawContentSection::Size optional
This is a follow-up for D62809.
Content and Size fields should be optional as was discussed in comments
of the D62809's thread. With that, we can describe a specific string table and
symbol table sections in a more correct way and also show appropriate errors.
The patch adds lots of test cases where the behavior is described in details.
Differential revision: https://reviews.llvm.org/D62957
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@362931
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George Rimar [Mon, 10 Jun 2019 11:38:06 +0000 (11:38 +0000)]
[yaml2obj] - Do not assert when .dynsym is specified explicitly, but .dynstr is not present.
We have a code in buildSectionIndex() that adds implicit sections:
// Add special sections after input sections, if necessary.
for (StringRef Name : implicitSectionNames())
if (SN2I.addName(Name, SecNo)) {
// Account for this section, since it wasn't in the Doc
++SecNo;
DotShStrtab.add(Name);
}
The problem arises when .dynsym is specified explicitly and no
DynamicSymbols is used. In that case, we do not add
.dynstr implicitly and will assert later when will try to set Link
for .dynsym.
Seems, in this case, reasonable behavior is to allow Link field to be zero.
This is what this patch does.
Differential revision: https://reviews.llvm.org/D63001
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@362929
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David Green [Mon, 10 Jun 2019 10:22:14 +0000 (10:22 +0000)]
[ARM] Enable Unroll UpperBound
This option allows loops with small max trip counts to be fully unrolled. This
can help with code like the remainder loops from manually unrolled loops like
those that appear in the cmsis dsp library. We would apparently previously
runtime unroll them with the default unroll count (4).
Differential Revision: https://reviews.llvm.org/D63064
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@362928
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