Simon Pilgrim [Mon, 25 Feb 2019 11:19:37 +0000 (11:19 +0000)]
[X86] Merge ISD::ADD/SUB nodes into X86ISD::ADD/SUB equivalents (PR40483)
Avoid ADD/SUB instruction duplication by reusing the X86ISD::ADD/SUB results.
Includes ADD commutation - I tried to include NEG+SUB SUB commutation as well but this causes regressions as we don't have good combine coverage to simplify X86ISD::SUB.
Differential Revision: https://reviews.llvm.org/D58597
llvm-svn: 354771
James Henderson [Mon, 25 Feb 2019 11:02:24 +0000 (11:02 +0000)]
[yaml2obj]Re-allow dynamic sections to have raw content
Recently, support was added to yaml2obj to allow dynamic sections to
have a list of entries, to make it easier to write tests with dynamic
sections. However, this change also removed the ability to provide
custom contents to the dynamic section, making it hard to test
malformed contents (e.g. because the section is not a valid size to
contain an array of entries). This change reinstates this. An error is
emitted if raw content and dynamic entries are both specified.
Reviewed by: grimar, ruiu
Differential Review: https://reviews.llvm.org/D58543
llvm-svn: 354770
Peter Smith [Mon, 25 Feb 2019 10:48:31 +0000 (10:48 +0000)]
[ELF][ARM] Accept and ignore -p and -no-pipleline-knowledge
The linux kernel uses an old flag -p/-no-pipeline-knowledge that is
accepted by bfd and gold but ignored by modern versions of them. The
original option is very old and is pre-ABI, it sometimes comes up in
code-bases that had support for pre ABI toolchains. The Linux kernel uses
it in 3 places in the ARM specific section.
Differential Revision: https://reviews.llvm.org/D58540
llvm-svn: 354769
Simon Tatham [Mon, 25 Feb 2019 10:39:53 +0000 (10:39 +0000)]
[ARM] Make fullfp16 instructions not conditionalisable.
More or less all the instructions defined in the v8.2a full-fp16
extension are defined as UNPREDICTABLE if you put them in an IT block
(Thumb) or use with any condition other than AL (ARM). LLVM didn't
know that, and was happy to conditionalise them.
In order to force these instructions to count as not predicable, I had
to make a small Tablegen change. The code generation back end mostly
decides if an instruction was predicable by looking for something it
can identify as a predicate operand; there's an isPredicable bit flag
that overrides that check in the positive direction, but nothing that
overrides it in the negative direction.
(I considered the alternative approach of actually removing the
predicate operand from those instructions, but thought that it would
be more painful overall for instructions differing only in data type
to have different shapes of operand list. This way, the only code that
has to notice the difference is the if-converter.)
So I've added an isUnpredicable bit alongside isPredicable, and set
that bit on the right subset of FP16 instructions, and also on the
VSEL, VMAXNM/VMINNM and VRINT[ANPM] families which should be
unpredicable for all data types.
I've included a couple of representative regression tests, both of
which previously caused an fp16 instruction to be conditionalised in
ARM state and (with -arm-no-restrict-it) to be put in an IT block in
Thumb.
Reviewers: SjoerdMeijer, t.p.northover, efriedma
Reviewed By: efriedma
Subscribers: jdoerfert, javed.absar, kristof.beyls, hiraditya, llvm-commits
Tags: #llvm
Differential Revision: https://reviews.llvm.org/D57823
llvm-svn: 354768
Roman Lebedev [Mon, 25 Feb 2019 09:36:12 +0000 (09:36 +0000)]
[llvm-exegesis] Split Epsilon param into two (PR40787)
Summary:
This eps param is used for two distinct things:
* initial point clusterization
* checking clusters against the llvm values
What if one wants to only look at highly different clusters, without changing
the clustering itself? In particular, this helps to weed out noisy measurements
(since the clusterization epsilon is still small, so there is a better chance
that noisy measurements from the same opcode will go into different clusters)
By splitting it into two params it is now possible.
This is nearly-free performance-wise:
Old:
```
$ perf stat -r 25 ./bin/llvm-exegesis -mode=analysis -benchmarks-file=/home/lebedevri/PileDriver-Sched/benchmarks-latency-1.yaml -analysis-inconsistencies-output-file=/tmp/clusters-old.html
no exegesis target for x86_64-unknown-linux-gnu, using default
Parsed 10099 benchmark points
Printing sched class consistency analysis results to file '/tmp/clusters-old.html'
...
Performance counter stats for './bin/llvm-exegesis -mode=analysis -benchmarks-file=/home/lebedevri/PileDriver-Sched/benchmarks-latency-1.yaml -analysis-inconsistencies-output-file=/tmp/clusters-old.html' (25 runs):
390.01 msec task-clock # 0.998 CPUs utilized ( +- 0.25% )
12 context-switches # 31.735 M/sec ( +- 27.38% )
0 cpu-migrations # 0.000 K/sec
4745 page-faults # 12183.732 M/sec ( +- 0.54% )
1562711900 cycles # 4012303.327 GHz ( +- 0.24% ) (82.90%)
185567822 stalled-cycles-frontend # 11.87% frontend cycles idle ( +- 0.52% ) (83.30%)
392106234 stalled-cycles-backend # 25.09% backend cycles idle ( +- 1.31% ) (33.79%)
1839236666 instructions # 1.18 insn per cycle
# 0.21 stalled cycles per insn ( +- 0.15% ) (50.37%)
407035764 branches #
1045074878.710 M/sec ( +- 0.12% ) (66.80%)
10896459 branch-misses # 2.68% of all branches ( +- 0.17% ) (83.20%)
0.390629 +- 0.000972 seconds time elapsed ( +- 0.25% )
```
```
$ perf stat -r 9 ./bin/llvm-exegesis -mode=analysis -benchmarks-file=/home/lebedevri/PileDriver-Sched/benchmarks-latency.yml -analysis-inconsistencies-output-file=/tmp/clusters-old.html
no exegesis target for x86_64-unknown-linux-gnu, using default
Parsed 50572 benchmark points
Printing sched class consistency analysis results to file '/tmp/clusters-old.html'
...
Performance counter stats for './bin/llvm-exegesis -mode=analysis -benchmarks-file=/home/lebedevri/PileDriver-Sched/benchmarks-latency.yml -analysis-inconsistencies-output-file=/tmp/clusters-old.html' (9 runs):
6803.36 msec task-clock # 0.999 CPUs utilized ( +- 0.96% )
262 context-switches # 38.546 M/sec ( +- 23.06% )
0 cpu-migrations # 0.065 M/sec ( +- 76.03% )
13287 page-faults # 1953.206 M/sec ( +- 0.32% )
27252537904 cycles # 4006024.257 GHz ( +- 0.95% ) (83.31%)
1496314935 stalled-cycles-frontend # 5.49% frontend cycles idle ( +- 0.97% ) (83.32%)
16128404524 stalled-cycles-backend # 59.18% backend cycles idle ( +- 0.30% ) (33.37%)
17611143370 instructions # 0.65 insn per cycle
# 0.92 stalled cycles per insn ( +- 0.05% ) (50.04%)
3894906599 branches #
572537147.437 M/sec ( +- 0.03% ) (66.69%)
116314514 branch-misses # 2.99% of all branches ( +- 0.20% ) (83.35%)
6.8118 +- 0.0689 seconds time elapsed ( +- 1.01%)
```
New:
```
$ perf stat -r 25 ./bin/llvm-exegesis -mode=analysis -benchmarks-file=/home/lebedevri/PileDriver-Sched/benchmarks-latency-1.yaml -analysis-inconsistencies-output-file=/tmp/clusters-new.html
no exegesis target for x86_64-unknown-linux-gnu, using default
Parsed 10099 benchmark points
Printing sched class consistency analysis results to file '/tmp/clusters-new.html'
...
Performance counter stats for './bin/llvm-exegesis -mode=analysis -benchmarks-file=/home/lebedevri/PileDriver-Sched/benchmarks-latency-1.yaml -analysis-inconsistencies-output-file=/tmp/clusters-new.html' (25 runs):
400.14 msec task-clock # 0.998 CPUs utilized ( +- 0.66% )
12 context-switches # 29.429 M/sec ( +- 25.95% )
0 cpu-migrations # 0.100 M/sec ( +-100.00% )
4714 page-faults # 11796.496 M/sec ( +- 0.55% )
1603131306 cycles # 4011840.105 GHz ( +- 0.66% ) (82.85%)
199538509 stalled-cycles-frontend # 12.45% frontend cycles idle ( +- 2.40% ) (83.10%)
402249109 stalled-cycles-backend # 25.09% backend cycles idle ( +- 1.19% ) (34.05%)
1847783963 instructions # 1.15 insn per cycle
# 0.22 stalled cycles per insn ( +- 0.18% ) (50.64%)
407162722 branches #
1018925730.631 M/sec ( +- 0.12% ) (67.02%)
10932779 branch-misses # 2.69% of all branches ( +- 0.51% ) (83.28%)
0.40077 +- 0.00267 seconds time elapsed ( +- 0.67% )
lebedevri@pini-pini:/build/llvm-build-Clang-release$ perf stat -r 9 ./bin/llvm-exegesis -mode=analysis -benchmarks-file=/home/lebedevri/PileDriver-Sched/benchmarks-latency.yml -analysis-inconsistencies-output-file=/tmp/clusters-new.html
no exegesis target for x86_64-unknown-linux-gnu, using default
Parsed 50572 benchmark points
Printing sched class consistency analysis results to file '/tmp/clusters-new.html'
...
Performance counter stats for './bin/llvm-exegesis -mode=analysis -benchmarks-file=/home/lebedevri/PileDriver-Sched/benchmarks-latency.yml -analysis-inconsistencies-output-file=/tmp/clusters-new.html' (9 runs):
6947.79 msec task-clock # 1.000 CPUs utilized ( +- 0.90% )
217 context-switches # 31.236 M/sec ( +- 36.16% )
1 cpu-migrations # 0.096 M/sec ( +- 50.00% )
13258 page-faults # 1908.389 M/sec ( +- 0.34% )
27830796523 cycles # 4006032.286 GHz ( +- 0.89% ) (83.30%)
1504554006 stalled-cycles-frontend # 5.41% frontend cycles idle ( +- 2.10% ) (83.32%)
16716574843 stalled-cycles-backend # 60.07% backend cycles idle ( +- 0.65% ) (33.38%)
17755545931 instructions # 0.64 insn per cycle
# 0.94 stalled cycles per insn ( +- 0.09% ) (50.04%)
3897255686 branches #
560980426.597 M/sec ( +- 0.06% ) (66.70%)
117045395 branch-misses # 3.00% of all branches ( +- 0.47% ) (83.34%)
6.9507 +- 0.0627 seconds time elapsed ( +- 0.90% )
```
I.e. it's +2.6% slowdown for one whole sweep, or +2% for 5 whole sweeps.
Within noise i'd say.
Should help with [[ https://bugs.llvm.org/show_bug.cgi?id=40787 | PR40787 ]].
Reviewers: courbet, gchatelet
Reviewed By: courbet
Subscribers: tschuett, RKSimon, llvm-commits
Tags: #llvm
Differential Revision: https://reviews.llvm.org/D58476
llvm-svn: 354767
Pavel Labath [Mon, 25 Feb 2019 09:30:41 +0000 (09:30 +0000)]
Finish revert of r354706
The revert in r354711 wasn't complete. Finish the job.
llvm-svn: 354766
Kadir Cetinkaya [Mon, 25 Feb 2019 09:19:26 +0000 (09:19 +0000)]
[clangd] Add thread priority lowering for MacOS as well
Reviewers: ilya-biryukov
Subscribers: ioeric, MaskRay, jkorous, arphaman, cfe-commits
Tags: #clang
Differential Revision: https://reviews.llvm.org/D58492
llvm-svn: 354765
Roman Lebedev [Mon, 25 Feb 2019 07:39:07 +0000 (07:39 +0000)]
[XRay][tools] Revert "Use Support/JSON.h in llvm-xray convert"
Summary:
This reverts D50129 / rL338834: [XRay][tools] Use Support/JSON.h in llvm-xray convert
Abstractions are great.
Readable code is great.
JSON support library is a *good* idea.
However unfortunately, there is an internal detail that one needs
to be aware of in `llvm::json::Object` - it uses `llvm::DenseMap`.
So for **every** `llvm::json::Object`, even if you only store a single `int`
entry there, you pay the whole price of `llvm::DenseMap`.
Unfortunately, it matters for `llvm-xray`.
I was trying to analyse the `llvm-exegesis` analysis mode performance,
and for that i wanted to view the LLVM X-Ray log visualization in Chrome
trace viewer. And the `llvm-xray convert` is sluggish, and sometimes
even ended up being killed by OOM.
`xray-log.llvm-exegesis.lwZ0sT` was acquired from `llvm-exegesis`
(compiled with ` -fxray-instruction-threshold=128`)
analysis mode over `-benchmarks-file` with 10099 points (one full
latency measurement set), with normal runtime of 0.387s.
Timings:
Old: (copied from D58580)
```
$ perf stat -r 5 ./bin/llvm-xray convert -sort -symbolize -instr_map=./bin/llvm-exegesis -output-format=trace_event -output=/tmp/trace.yml xray-log.llvm-exegesis.lwZ0sT
Performance counter stats for './bin/llvm-xray convert -sort -symbolize -instr_map=./bin/llvm-exegesis -output-format=trace_event -output=/tmp/trace.yml xray-log.llvm-exegesis.lwZ0sT' (5 runs):
21346.24 msec task-clock # 1.000 CPUs utilized ( +- 0.28% )
314 context-switches # 14.701 M/sec ( +- 59.13% )
1 cpu-migrations # 0.037 M/sec ( +-100.00% )
2181354 page-faults # 102191.251 M/sec ( +- 0.02% )
85477442102 cycles # 4004415.019 GHz ( +- 0.28% ) (83.33%)
14526427066 stalled-cycles-frontend # 16.99% frontend cycles idle ( +- 0.70% ) (83.33%)
32371533721 stalled-cycles-backend # 37.87% backend cycles idle ( +- 0.27% ) (33.34%)
67896890228 instructions # 0.79 insn per cycle
# 0.48 stalled cycles per insn ( +- 0.03% ) (50.00%)
14592654840 branches #
683631198.653 M/sec ( +- 0.02% ) (66.67%)
212207534 branch-misses # 1.45% of all branches ( +- 0.94% ) (83.34%)
21.3502 +- 0.0585 seconds time elapsed ( +- 0.27% )
```
New:
```
$ perf stat -r 9 ./bin/llvm-xray convert -sort -symbolize -instr_map=./bin/llvm-exegesis -output-format=trace_event -output=/tmp/trace.yml xray-log.llvm-exegesis.lwZ0sT
Performance counter stats for './bin/llvm-xray convert -sort -symbolize -instr_map=./bin/llvm-exegesis -output-format=trace_event -output=/tmp/trace.yml xray-log.llvm-exegesis.lwZ0sT' (9 runs):
7178.38 msec task-clock # 1.000 CPUs utilized ( +- 0.26% )
182 context-switches # 25.402 M/sec ( +- 28.84% )
0 cpu-migrations # 0.046 M/sec ( +- 70.71% )
33701 page-faults # 4694.994 M/sec ( +- 0.88% )
28761053971 cycles # 4006833.933 GHz ( +- 0.26% ) (83.32%)
2028297997 stalled-cycles-frontend # 7.05% frontend cycles idle ( +- 1.61% ) (83.32%)
10773154901 stalled-cycles-backend # 37.46% backend cycles idle ( +- 0.38% ) (33.36%)
36199132874 instructions # 1.26 insn per cycle
# 0.30 stalled cycles per insn ( +- 0.03% ) (50.02%)
6434504227 branches #
896420204.421 M/sec ( +- 0.03% ) (66.68%)
73355176 branch-misses # 1.14% of all branches ( +- 1.46% ) (83.33%)
7.1807 +- 0.0190 seconds time elapsed ( +- 0.26% )
```
So using `llvm::json` nearly triples run-time on that test case.
(+3x is times, not percent.)
Memory:
Old:
```
total runtime: 39.88s.
bytes allocated in total (ignoring deallocations): 79.07GB (1.98GB/s)
calls to allocation functions:
33267816 (834135/s)
temporary memory allocations: 5832298 (146235/s)
peak heap memory consumption: 9.21GB
peak RSS (including heaptrack overhead): 147.98GB
total memory leaked: 1.09MB
```
New:
```
total runtime: 17.42s.
bytes allocated in total (ignoring deallocations): 5.12GB (293.86MB/s)
calls to allocation functions:
21382982 (1227284/s)
temporary memory allocations: 232858 (13364/s)
peak heap memory consumption: 350.69MB
peak RSS (including heaptrack overhead): 2.55GB
total memory leaked: 79.95KB
```
Diff:
```
total runtime: -22.46s.
bytes allocated in total (ignoring deallocations): -73.95GB (3.29GB/s)
calls to allocation functions: -
11884834 (529155/s)
temporary memory allocations: -5599440 (249307/s)
peak heap memory consumption: -8.86GB
peak RSS (including heaptrack overhead): 0B
total memory leaked: -1.01MB
```
So using `llvm::json` increases *peak* memory consumption on *this* testcase ~+27x.
And total allocation count +15x. Both of these numbers are times, *not* percent.
And note that memory usage is clearly unbound with `llvm::json`, it directly depends
on the length of the log, so peak memory consumption is always increasing.
This isn't so with the dumb code, there is no accumulating memory consumption,
peak memory consumption is fixed. Naturally, that means it will handle *much*
larger logs without OOM'ing.
Readability is good, but the price is simply unacceptable here.
Too bad none of this analysis was done as part of the development/review D50129 itself.
Reviewers: dberris, kpw, sammccall
Reviewed By: dberris
Subscribers: riccibruno, hans, courbet, jdoerfert, llvm-commits
Tags: #llvm
Differential Revision: https://reviews.llvm.org/D58584
llvm-svn: 354764
Craig Topper [Mon, 25 Feb 2019 03:11:44 +0000 (03:11 +0000)]
[SelectionDAG] Add a OPC_CheckChild2CondCode to SelectionDAGISel to remove a MoveChild and MoveParent pair.
OPC_CheckCondCode is always used as operand 2 of a setcc. And its always surrounded by a MoveChild2 and a MoveParent. By having a dedicated opcode for this case we can reduce the number of bytes needed for this pattern from 4 bytes to 2.
This saves ~3000 bytes in the X86 table.
llvm-svn: 354763
Kang Zhang [Mon, 25 Feb 2019 02:46:16 +0000 (02:46 +0000)]
[PowerPC] [PowerPC] Enhance the fast selection of fptoi & fptrunc instruction and clean up related asserts
Summary:
Fast selection of llvm fptoi & fptrunc instructions is not handled well about
VSX instruction support.
We'd use VSX float convert integer instruction instead of non-vsx float convert
integer instruction if the operand register class is VSSRC or VSFRC because i32
and i64 are mapped to VSSRC and VSFRC correspondingly if VSX feature is
openeded.
For float trunc instruction, we do this silimar work like float convert integer
instruction to try to use VSX instruction.
Reviewed By: jsji
Differential Revision: https://reviews.llvm.org/D58430
llvm-svn: 354762
Marc-Andre Laperle [Sun, 24 Feb 2019 23:47:03 +0000 (23:47 +0000)]
[clangd] Enhance macro hover to see full definition
Summary: Signed-off-by: Marc-Andre Laperle <malaperle@gmail.com>
Reviewers: simark, ilya-biryukov, sammccall, ioeric, hokein
Reviewed By: ilya-biryukov
Subscribers: ilya-biryukov, ioeric, MaskRay, jkorous, arphaman, kadircet, cfe-commits
Tags: #clang
Differential Revision: https://reviews.llvm.org/D55250
llvm-svn: 354761
Nikita Popov [Sun, 24 Feb 2019 21:55:37 +0000 (21:55 +0000)]
[InstCombine] Add tests for PR40846; NFC
The icmps are the same as the overflow result of the intrinsic.
llvm-svn: 354760
Nikita Popov [Sun, 24 Feb 2019 21:55:31 +0000 (21:55 +0000)]
[InstCombine] Move with.overflow tests to separate file; NFC
And regenerate checks. I had to rename some variables, because
update_test_checks can't deal with the same variable names used
in lower and upper case. I've also dropped the result type aliases,
as just using the type directly gives a cleaner result.
llvm-svn: 354759
Simon Pilgrim [Sun, 24 Feb 2019 21:13:29 +0000 (21:13 +0000)]
[X86] Add PR40483 test cases
Demonstrate failure to merge ISD::ADD(x,y)/X86ISD::ADD(x,y) + ISD::SUB(x,y)/X86ISD::SUB(x,y) equivalent ops
llvm-svn: 354758
Simon Pilgrim [Sun, 24 Feb 2019 19:57:52 +0000 (19:57 +0000)]
[X86] Combine zext(packus(x),packus(y)) -> concat(x,y) (PR39637)
Its proving tricky to combine shuffles across multiple vector sizes, so for now I'm adding this more specific combine - the pattern is common enough to be worth it as a first step.
llvm-svn: 354757
Craig Topper [Sun, 24 Feb 2019 19:33:37 +0000 (19:33 +0000)]
[X86] Fix tls variable lowering issue with large code model
Summary:
The problem here is the lowering for tls variable. Below is the DAG for the code.
SelectionDAG has 11 nodes:
t0: ch = EntryToken
t8: i64,ch = load<(load 8 from `i8 addrspace(257)* null`, addrspace 257)> t0, Constant:i64<0>, undef:i64
t10: i64 = X86ISD::WrapperRIP TargetGlobalTLSAddress:i64<i32* @x> 0 [TF=10]
t11: i64,ch = load<(load 8 from got)> t0, t10, undef:i64
t12: i64 = add t8, t11
t4: i32,ch = load<(dereferenceable load 4 from @x)> t0, t12, undef:i64
t6: ch = CopyToReg t0, Register:i32 %0, t4
And when mcmodel is large, below instruction can NOT be folded.
t10: i64 = X86ISD::WrapperRIP TargetGlobalTLSAddress:i64<i32* @x> 0 [TF=10]
t11: i64,ch = load<(load 8 from got)> t0, t10, undef:i64
So "t11: i64,ch = load<(load 8 from got)> t0, t10, undef:i64" is lowered to " Morphed node: t11: i64,ch = MOV64rm<Mem:(load 8 from got)> t10, TargetConstant:i8<1>, Register:i64 $noreg, TargetConstant:i32<0>, Register:i32 $noreg, t0"
When llvm start to lower "t10: i64 = X86ISD::WrapperRIP TargetGlobalTLSAddress:i64<i32* @x> 0 [TF=10]", it fails.
The patch is to fold the load and X86ISD::WrapperRIP.
Fixes PR26906
Patch by LuoYuanke
Reviewers: craig.topper, rnk, annita.zhang, wxiao3
Reviewed By: rnk
Subscribers: llvm-commits
Tags: #llvm
Differential Revision: https://reviews.llvm.org/D58336
llvm-svn: 354756
Craig Topper [Sun, 24 Feb 2019 19:23:41 +0000 (19:23 +0000)]
[X86][SSE] Use pblendw for v4i32/v2i64 during isel.
Summary:
Previously we used BLENDPS/BLENDPD but that puts the blend in the FP domain. Under optsize, the two address instruction pass can cause blendps/blendpd to commute to blendps/blendpd. But we probably shouldn't do that if the original type was a integer. So use pblendw instead.
Reviewers: spatel, RKSimon
Reviewed By: RKSimon
Subscribers: jdoerfert, llvm-commits
Tags: #llvm
Differential Revision: https://reviews.llvm.org/D58574
llvm-svn: 354755
Craig Topper [Sun, 24 Feb 2019 19:23:39 +0000 (19:23 +0000)]
[X86] Correct some ADC/SBB with immediate scheduler data for Broadwell and Skylake.
Summary:
The AX/EAX/RAX with immediate forms are 2 uops just like the AL with immediate.
The modrm form with r8 and immediate is a single uop just like r16/r32/r64 with immediate.
Reviewers: RKSimon, andreadb
Reviewed By: RKSimon
Subscribers: gbedwell, llvm-commits
Tags: #llvm
Differential Revision: https://reviews.llvm.org/D58581
llvm-svn: 354754
Craig Topper [Sun, 24 Feb 2019 19:23:36 +0000 (19:23 +0000)]
[LegalizeTypes][AArch64][X86] Make type legalization of vector (S/U)ADD/SUB/MULO follow getSetCCResultType for the overflow bits. Make UnrollVectorOverflowOp properly convert from scalar boolean contents to vector boolean contents
Summary:
When promoting the over flow vector for these ops we should use the target's desired setcc result type. This way a v8i32 result type will use a v8i32 overflow vector instead of a v8i16 overflow vector. A v8i16 overflow vector will cause LegalizeDAG/LegalizeVectorOps to have to use v8i32 and truncate to v8i16 in its expansion. By doing this in type legalization instead, we get the truncate into the DAG earlier and give DAG combine more of a chance to optimize it.
We also have to fix unrolling to use the scalar setcc result type for the scalarized operation, and convert it to the required vector element type after the scalar operation. We have to observe the vector boolean contents when doing this conversion. The previous code was just taking the scalar result and putting it in the vector. But for X86 and AArch64 that would have only put a the boolean value in bit 0 of the element and left all other bits in the element 0. We need to ensure all bits in the element are the same. I'm using a select with constants here because that's what setcc unrolling in LegalizeVectorOps used.
Reviewers: spatel, RKSimon, nikic
Reviewed By: nikic
Subscribers: javed.absar, kristof.beyls, dmgreen, llvm-commits
Tags: #llvm
Differential Revision: https://reviews.llvm.org/D58567
llvm-svn: 354753
Kristina Brooks [Sun, 24 Feb 2019 18:06:10 +0000 (18:06 +0000)]
Fix accidentally used hard tabs. NFC
Big sorry. This undoes the indentation mess I made
in r354751.
llvm-svn: 354752
Kristina Brooks [Sun, 24 Feb 2019 17:57:33 +0000 (17:57 +0000)]
Wrap code for builtin_assume_aligned at 80 col.NFC
Minor style fix to avoid going over 80 cols in handling
of case for Builtin::BI__builtin_assume_aligned. NFC.
llvm-svn: 354751
Sanjay Patel [Sun, 24 Feb 2019 17:31:15 +0000 (17:31 +0000)]
[InstCombine] add test for icmp+add fold; NFC
llvm-svn: 354750
Simon Pilgrim [Sun, 24 Feb 2019 17:30:06 +0000 (17:30 +0000)]
[X86][AVX] Rename lowerShuffleByMerging128BitLanes to lowerShuffleAsLanePermuteAndRepeatedMask. NFC.
Name better matches the other similar 'lane permute' and 'repeated mask' functions we have.
llvm-svn: 354749
Sanjay Patel [Sun, 24 Feb 2019 16:57:45 +0000 (16:57 +0000)]
[InstCombine] canonicalize add/sub with bool
add A, sext(B) --> sub A, zext(B)
We have to choose 1 of these forms, so I'm opting for the
zext because that's easier for value tracking.
The backend should be prepared for this change after:
D57401
rL353433
This is also a preliminary step towards reducing the amount
of bit hackery that we do in IR to optimize icmp/select.
That should be waiting to happen at a later optimization stage.
The seeming regression in the fuzzer test was discussed in:
D58359
We were only managing that fold in instcombine by luck, and
other passes should be able to deal with that better anyway.
llvm-svn: 354748
Sanjay Patel [Sun, 24 Feb 2019 16:11:58 +0000 (16:11 +0000)]
[InstCombine] regenerate checks; NFC
llvm-svn: 354747
Sanjay Patel [Sun, 24 Feb 2019 15:31:27 +0000 (15:31 +0000)]
[CGP] add special-cases to form unsigned add with overflow (PR40486)
There's likely a missed IR canonicalization for at least 1 of these
patterns. Otherwise, we wouldn't have needed the pattern-matching
enhancement in D57516.
Note that -- unlike usubo added with D57789 -- the TLI hook for
this transform defaults to 'on'. So if there's any perf fallout
from this, targets should look at how they're lowering the uaddo
node in SDAG and/or override that hook.
The x86 diffs suggest that there's some missing pattern-matching
for forming inc/dec.
This should fix the remaining known problems in:
https://bugs.llvm.org/show_bug.cgi?id=40486
https://bugs.llvm.org/show_bug.cgi?id=31754
llvm-svn: 354746
Simon Pilgrim [Sun, 24 Feb 2019 13:31:52 +0000 (13:31 +0000)]
Fix "enumeral and non-enumeral type in conditional expression" gcc7 warning. NFCI.
llvm-svn: 354745
Heejin Ahn [Sun, 24 Feb 2019 08:30:06 +0000 (08:30 +0000)]
[WebAssembly] Rename a variable in CFGStackify (NFC)
llvm-svn: 354744
Heejin Ahn [Sun, 24 Feb 2019 08:19:55 +0000 (08:19 +0000)]
[WebAssembly] Merge two identical switch case routines into one (NFC)
llvm-svn: 354743
Michael Liao [Sun, 24 Feb 2019 03:10:14 +0000 (03:10 +0000)]
Typo: s/CHCCK/CHECK
llvm-svn: 354742
Michael Liao [Sun, 24 Feb 2019 03:07:32 +0000 (03:07 +0000)]
[NFC] Minor coding style (indent) fix.
llvm-svn: 354741
Philip Reames [Sun, 24 Feb 2019 00:45:09 +0000 (00:45 +0000)]
[Hexagon, SystemZ] Be super conservative about atomics
As requested during review of D57601, be equally conservative for atomic MMOs as for volatile MMOs in all in tree backends. At the moment, all atomic MMOs are also volatile, but I'm about to change that.
Reviewed as part of https://reviews.llvm.org/D58490, with other backends still pending review.
llvm-svn: 354740
Duncan P. N. Exon Smith [Sat, 23 Feb 2019 23:48:47 +0000 (23:48 +0000)]
VFS: Avoid some unnecessary std::string copies
Thread Twine a little deeper through the VFS to avoid unnecessarily
constructing the same std::string twice in a parameter sequence:
Twine -> std::string -> StringRef -> std::string
Changing a few parameters from StringRef to Twine avoids the early call
to `Twine::str()`.
llvm-svn: 354739
Craig Topper [Sat, 23 Feb 2019 21:41:44 +0000 (21:41 +0000)]
[TwoAddressInstructionPass] After commuting an instruction and before trying to look for more commutable operands, resample the number of operands.
The new instruciton might have less operands than the original instruction. If we don't resample, the next loop iteration might read an operand that doesn't exist.
X86 can commute blends to movss/movsd which reduces from 4 operands to 3. This happened in the test case that caused r354363 & company to be reverted. A reduced version of that has been committed here.
Really this whole checking for more commutable operands is a little fragile. It assumes that the new instructions operands are the same order and positions as the original except for the pair that was swapped. I don't know of anything that breaks this assumption today, but I've left a fixme. Fixing this will likely require an interface change.
llvm-svn: 354738
Craig Topper [Sat, 23 Feb 2019 21:41:42 +0000 (21:41 +0000)]
Recommit r354363 "[X86][SSE] Generalize X86ISD::BLENDI support to more value types"
And its follow ups r354511, r354640.
A follow patch will fix the issue that caused it to be reverted.
llvm-svn: 354737
Richard Smith [Sat, 23 Feb 2019 21:06:26 +0000 (21:06 +0000)]
Enable coroutines under -std=c++2a.
llvm-svn: 354736
Richard Smith [Sat, 23 Feb 2019 21:06:25 +0000 (21:06 +0000)]
[cxx_status] Update to match Kona motions.
llvm-svn: 354735
Craig Topper [Sat, 23 Feb 2019 19:51:32 +0000 (19:51 +0000)]
Recommit r354647 and r354648 "[LegalizeTypes] When promoting the result of EXTRACT_SUBVECTOR, also check if the input needs to be promoted. Use that to determine the element type to extract"
r354648 was a follow up to fix a regression "[X86] Add a DAG combine for (aext_vector_inreg (aext_vector_inreg X)) -> (aext_vector_inreg X) to fix a regression from my previous commit."
These were reverted in r354713 as their context depended on other patches that were reverted for a bug.
llvm-svn: 354734
Nikita Popov [Sat, 23 Feb 2019 18:59:01 +0000 (18:59 +0000)]
[WebAssembly] Fix select of and (PR40805)
Fixes https://bugs.llvm.org/show_bug.cgi?id=40805 introduced by
patterns added in D53676.
I'm removing the patterns entirely here, as they are not correct
in the general case. If necessary something more specific can be
added in the future.
Differential Revision: https://reviews.llvm.org/D58575
llvm-svn: 354733
Simon Pilgrim [Sat, 23 Feb 2019 18:53:03 +0000 (18:53 +0000)]
[X86][AVX] combineInsertSubvector - remove concat_vectors(load(x),load(x)) --> sub_vbroadcast(x)
D58053/rL354340 added this to EltsFromConsecutiveLoads directly
llvm-svn: 354732
Simon Pilgrim [Sat, 23 Feb 2019 18:49:02 +0000 (18:49 +0000)]
Fix MSVC constant truncation warnings. NFCI.
llvm-svn: 354731
Simon Pilgrim [Sat, 23 Feb 2019 18:34:05 +0000 (18:34 +0000)]
[X86][AVX] concat_vectors(scalar_to_vector(x),scalar_to_vector(x)) --> broadcast(x)
For AVX1, limit this to i32/f32/i64/f64 loading cases only.
llvm-svn: 354730
Simon Pilgrim [Sat, 23 Feb 2019 17:10:47 +0000 (17:10 +0000)]
[X86][AVX] Shuffle->Permute+Blend if we have one v4f64/v4i64 shuffle input in place
Even on AVX1 we can pretty cheaply (VPERM2F128+VSHUFPD) permute a single v4f64/v4i64 input (on AVX2 its just a single VPERMPD), followed by a BLENDPD.
llvm-svn: 354729
Bruno Ricci [Sat, 23 Feb 2019 16:40:30 +0000 (16:40 +0000)]
[NFC] Fix Wdocumentation warning in OMPToClause
llvm-svn: 354728
Bruno Ricci [Sat, 23 Feb 2019 16:25:00 +0000 (16:25 +0000)]
[Sema][NFC] SequenceChecker: More tests in preparation for D57660
llvm-svn: 354727
Simon Dardis [Sat, 23 Feb 2019 15:56:32 +0000 (15:56 +0000)]
[MIPS] Fix a incorrect test. (NFC)
This test is incorrect as it should be using the microMIPSR6 instruction to
return, not the microMIPS version.
llvm-svn: 354726
Louis Dionne [Sat, 23 Feb 2019 11:24:03 +0000 (11:24 +0000)]
[libcxx] Make sure all experimental tests are disabled when enable_experimental=False
Summary:
Previously, we'd run some experimental tests even when enable_experimental=False
was used with lit.
Reviewers: EricWF
Subscribers: christof, jkorous, dexonsmith, libcxx-commits, mclow.lists
Differential Revision: https://reviews.llvm.org/D55834
llvm-svn: 354725
Craig Topper [Sat, 23 Feb 2019 08:34:10 +0000 (08:34 +0000)]
[X86] Sign extend the 8-bit immediate when commuting blend instructions to match isel.
Conversion from ConstantSDNode to MachineInstr sign extends immediates from their APInt representation to int64_t.
This commit makes sure we do the same for commuting. The tests changes show how this improves CSE. This issue was made worse by the MachineCSE using commuteInstruction to undo a commute. So we virtually guarantee the sign extend from isel would be lost.
The improved CSE also occurred with r354363, but that was reverted. I'm working to undo the revert, but wanted to get this fix in while it was easy to see the results.
llvm-svn: 354724
Brad Smith [Sat, 23 Feb 2019 07:21:19 +0000 (07:21 +0000)]
Remove OpenBSD case for old system libstdc++ header path as OpenBSD
has switched to libc++.
llvm-svn: 354723
Michael Trent [Sat, 23 Feb 2019 06:19:56 +0000 (06:19 +0000)]
objdump fails to parse Mach-O binaries with n_desc bearing stabs
Summary:
The objdump Mach-O parser uses MachOObjectFile::checkSymbolTable() to
verify the symbol table is in a legal state before dereferencing the
offsets in the table. This routine missed a test for N_STAB symbols
when validating the two-level name space library ordinal for undefined
symbols. If the binary in question contained a value in the n_desc high
byte that is larger than the list of loaded dylibs, checkSymbolTable()
will flag the library ordinal as being out of range. Most of the time
the n_desc field is set to 0 or to small values, but old final linked
binaries exist with N_STAB symbols bearing non-trivial n_desc fields.
The change here is simply to verify a symbol is not an N_STAB symbol
before consulting the values of n_other or n_desc.
rdar://
44977336
Reviewers: lhames, pete, ab
Reviewed By: pete
Subscribers: llvm-commits, rupprecht
Tags: #llvm
Differential Revision: https://reviews.llvm.org/D58568
llvm-svn: 354722
Brad Smith [Sat, 23 Feb 2019 06:19:28 +0000 (06:19 +0000)]
Remove sanitizer context workaround no longer necessary
The base linker is now lld.
llvm-svn: 354721
Richard Trieu [Sat, 23 Feb 2019 05:48:50 +0000 (05:48 +0000)]
Remove overly broad assert from r354717.
llvm-svn: 354720
Daniel Sanders [Sat, 23 Feb 2019 03:25:37 +0000 (03:25 +0000)]
Try again to fix memory leak in r354692
The previous one didn't fix everything.
llvm-svn: 354719
Julian Lettner [Sat, 23 Feb 2019 03:24:10 +0000 (03:24 +0000)]
[NFC][Sanitizer] Comment out argument checks
These break clang-ppc64 bots.
llvm-svn: 354718
Julian Lettner [Sat, 23 Feb 2019 02:36:23 +0000 (02:36 +0000)]
[NFC][Sanitizer] Add argument checks to BufferedStackTrace::Unwind* functions
Reviewers: vitalybuka
Differential Revision: https://reviews.llvm.org/D58555
llvm-svn: 354717
Alexandre Ganea [Sat, 23 Feb 2019 01:46:18 +0000 (01:46 +0000)]
[LLD][COFF] Add support for /FUNCTIONPADMIN command-line option
Initial patch by Stefan Reinalter.
Fixes PR36775
Differential Revision: https://reviews.llvm.org/D49366
llvm-svn: 354716
Jordan Rupprecht [Sat, 23 Feb 2019 01:28:32 +0000 (01:28 +0000)]
[NFC] Fix typos: preceeding -> preceding
llvm-svn: 354715
Reid Kleckner [Sat, 23 Feb 2019 01:19:42 +0000 (01:19 +0000)]
Revert r354363 & co "[X86][SSE] Generalize X86ISD::BLENDI support to more value types"
r354363 caused https://crbug.com/934963#c1, which has a plain C reduced
test case.
I also had to revert some dependent changes:
- r354648
- r354647
- r354640
- r354511
llvm-svn: 354713
Daniel Sanders [Sat, 23 Feb 2019 01:13:35 +0000 (01:13 +0000)]
Fix memory leak in r354692
llvm-svn: 354712
Jim Ingham [Sat, 23 Feb 2019 01:08:17 +0000 (01:08 +0000)]
Revert r354706 - lit touched my thigh
llvm-svn: 354711
Craig Topper [Sat, 23 Feb 2019 00:38:19 +0000 (00:38 +0000)]
[LegalizeTypes] Use PromoteTargetBoolean in PromoteIntOp_ADDSUBCARRY instead of reimplementing it. NFCI
llvm-svn: 354710
Craig Topper [Sat, 23 Feb 2019 00:35:02 +0000 (00:35 +0000)]
[X86] Enable custom splitting of v8i64/v16i32 sext/zext for avx/avx2 when input type will be promoted by the type legalize to 128-bits.
If the the input type will be promoted to 128 bits its better to put a sign_extend_inreg/and in the 128 bit register before the split occurs. Otherwise we end up doing it on each half in the wider register.
Some of the overflow arithmetic tests are regressions, but I think we can make some improvement using getSetccResultType in DAG combine and/or type legalization.
llvm-svn: 354709
Craig Topper [Sat, 23 Feb 2019 00:34:58 +0000 (00:34 +0000)]
[X86] Add a few test cases for a v8i64 sext/zext from an illegal type that needs to be promoted to 128 bits.
If v8i64 isn't a legal type but v4i64 is, these will be split and then each half will get their input promoted and become an any_extend_vector_inreg/punpckhwd + any_extend + and/sign_extend_inreg.
If we instead recognize the input will be promoted we can emit the and/sign_extend_inreg first in a 128 bit register. Then we can sign_extend/zero_extend one half and pshufd+sign_extend/zero_extend the other half.
llvm-svn: 354708
Rui Ueyama [Sat, 23 Feb 2019 00:24:18 +0000 (00:24 +0000)]
Split a long line to avoid annoying horizontal scrolling on a browser.
llvm-svn: 354707
Jim Ingham [Sat, 23 Feb 2019 00:13:25 +0000 (00:13 +0000)]
Make sure that stop-hooks run asynchronously.
They aren't designed to nest recursively, so this will prevent that.
Also add a --auto-continue flag, putting "continue" in the stop hook makes
the stop hooks fight one another in multi-threaded programs.
Also allow more than one -o options so you can make more complex stop hooks w/o
having to go into the editor.
<rdar://problem/
48115661>
Differential Revision: https://reviews.llvm.org/D58394
llvm-svn: 354706
Sam Clegg [Sat, 23 Feb 2019 00:07:39 +0000 (00:07 +0000)]
[WebAssembly] Update CodeGen test expectations after rL354697. NFC
llvm-svn: 354705
Rui Ueyama [Fri, 22 Feb 2019 23:59:51 +0000 (23:59 +0000)]
s/method/function/g since function is the correct name in C++.
llvm-svn: 354704
Rui Ueyama [Fri, 22 Feb 2019 23:59:43 +0000 (23:59 +0000)]
Remove a function from header and move the implementation to a .cpp file. NFC.
llvm-svn: 354703
Jim Ingham [Fri, 22 Feb 2019 23:54:11 +0000 (23:54 +0000)]
When deserializing breakpoints some options may not be present.
The deserializer was not handling this case. For now we just
accept the absent option, and set it to the breakpoint default.
This will be more important if/when I figure out how to serialize
the options set on breakpont locations.
<rdar://problem/
48322664>
llvm-svn: 354702
Julian Lettner [Fri, 22 Feb 2019 23:37:46 +0000 (23:37 +0000)]
[NFC][Sanitizer] Re-enable test on Darwin
This unexpectedly passes on our CI, although it still fails on my
machine.
llvm-svn: 354701
Konstantin Zhuravlyov [Fri, 22 Feb 2019 23:21:06 +0000 (23:21 +0000)]
Revert "AMDGPU/NFC: Cleanup subtarget predicates"
It breaks one of our downstream merges, so revert it
temporarily while investigating failures downstream
llvm-svn: 354700
Sanjay Patel [Fri, 22 Feb 2019 23:19:34 +0000 (23:19 +0000)]
[CGP] add tests for uaddo increment/decrement; NFC
llvm-svn: 354699
Michael Kruse [Fri, 22 Feb 2019 22:29:42 +0000 (22:29 +0000)]
[OpenMP 5.0] Parsing/sema support for to clause with mapper modifier.
This patch implements the parsing and sema support for OpenMP to clause
with potential user-defined mappers attached. User defined mapper is a
new feature in OpenMP 5.0. A to/from clause can have an explicit or
implicit associated mapper, which instructs the compiler to generate and
use customized mapping functions. An example is shown below:
struct S { int len; int *d; };
#pragma omp declare mapper(id: struct S s) map(s, s.d[0:s.len])
struct S ss;
#pragma omp target update to(mapper(id): ss) // use the mapper with name 'id' to map ss to device
Contributed-by: <lildmh@gmail.com>
Differential Revision: https://reviews.llvm.org/D58523
llvm-svn: 354698
Sam Clegg [Fri, 22 Feb 2019 22:29:34 +0000 (22:29 +0000)]
[WebAssembly] Remove unneeded MCSymbolRefExpr variants
We record the type of the symbol (event/function/data/global) in the
MCWasmSymbol and so it should always be clear how to handle a relocation
based on the symbol itself.
The exception is a function which still needs the special @TYPEINDEX
then the relocation contains the signature rather than the address
of the functions.
Differential Revision: https://reviews.llvm.org/D58472
llvm-svn: 354697
Julian Lettner [Fri, 22 Feb 2019 22:03:09 +0000 (22:03 +0000)]
[NFC][Sanitizer] Rename BufferedStackTrace::FastUnwindStack
FastUnwindStack -> UnwindFast
SlowUnwindStack -> UnwindSlow
Stack is redundant, verb should come first.
SlowUnwindStackWithContext(uptr pc, void *context, u32 max_depth) ->
SlowUnwindStack
WithContext is redundant, since it is a required parameter.
Reviewers: vitalybuka
Differential Revision: https://reviews.llvm.org/D58551
llvm-svn: 354696
Julian Lettner [Fri, 22 Feb 2019 22:00:13 +0000 (22:00 +0000)]
[Sanitizer] Fix uses of stack->Unwind(..., fast)
Apply StackTrace::WillUseFastUnwind(fast) in a few more places missed by
my previous patch (https://reviews.llvm.org/D58156).
Reviewers: vitalybuka
Differential Revision: https://reviews.llvm.org/D58550
llvm-svn: 354695
Sam Clegg [Fri, 22 Feb 2019 21:41:42 +0000 (21:41 +0000)]
[WebAssembly] MC: Handle aliases of aliases
Differential Revision: https://reviews.llvm.org/D58417
llvm-svn: 354694
David Greene [Fri, 22 Feb 2019 21:19:48 +0000 (21:19 +0000)]
[CMake] Honor LLVM_EXTERNAL_<proj>_SOURCE_DIR
When LLVM_ENABLE_PROJECTS is set, CMake assumes the project
directories are all side-by-side. This is not always the case and
there's no reason to expect it if LLVM_EXTERNAL_<proj>_SOURCE_DIR is
set. Honor that setting if it exists and allow the build configuration
to continue.
Differential Revision: https://reviews.llvm.org/D49672
llvm-svn: 354693
Daniel Sanders [Fri, 22 Feb 2019 20:59:07 +0000 (20:59 +0000)]
Restore ability for C++ API users to Enable IPRA.
Summary:
Prior to r310876 one of our out-of-tree targets was enabling IPRA by modifying
the TargetOptions::EnableIPRA. This no longer works on current trunk since the
useIPRA() hook overrides any values that are set in advance. This patch adjusts
the behaviour of the hook so that API users and useIPRA() can both enable it
but useIPRA() cannot disable it if the API user already enabled it.
Reviewers: arsenm
Reviewed By: arsenm
Subscribers: wdng, mgorny, llvm-commits
Differential Revision: https://reviews.llvm.org/D38043
llvm-svn: 354692
Louis Dionne [Fri, 22 Feb 2019 20:48:54 +0000 (20:48 +0000)]
[clang] Only provide C11 features in <float.h> starting with C++17
Summary:
In r353970, I enabled those features in C++11 and above. To be strictly
conforming, those features should only be enabled in C++17 and above.
Reviewers: jfb, eli.friedman
Subscribers: jkorous, dexonsmith, libcxx-commits
Differential Revision: https://reviews.llvm.org/D58289
llvm-svn: 354691
Alexey Bataev [Fri, 22 Feb 2019 20:36:10 +0000 (20:36 +0000)]
[OPENMP] Delayed diagnostics for VLA support.
Generalized processing of the deferred diagnostics for OpenMP/CUDA code.
llvm-svn: 354690
Sanjay Patel [Fri, 22 Feb 2019 20:20:24 +0000 (20:20 +0000)]
[CGP] move overflow intrinsic insertion to common location; NFCI
We need to enhance the uaddo matching to handle special-cases
as seen in PR40486 and PR31754. That means we won't necessarily
have a def-use pattern, so we'll need to check dominance to
determine where to place the intrinsic (as we already do for
usubo). This preliminary patch is just rearranging the code,
so the planned follow-up to improve uaddo will be more clear.
llvm-svn: 354689
Matt Arsenault [Fri, 22 Feb 2019 19:30:38 +0000 (19:30 +0000)]
MIR: Preserve incoming frame index numbers
Don't skip incrementing the frame index number
if the object is dead. Instructions can still be
referencing the old frame index number, and this
doesn't attempt to remap those. The resulting
MIR then fails to load because the use instructions
use a higher frame index number than recorded
list of stack objects.
I'm not sure it's possible to craft a testcase
with the existing set of passes. It requires
selectively marking some stack objects
dead in an essentially random order.
StackSlotColoring condenses towards
the low indexes. This avoids a regression in a
future AMDGPU commit when some frame indexes
are lowered separately from PEI.
llvm-svn: 354688
Matt Arsenault [Fri, 22 Feb 2019 19:16:52 +0000 (19:16 +0000)]
CodeGen: Make RegAllocRegistry a template class
Will allow re-using the machinery for independent
sets of register allocators.
This will allow AMDGPU to use separate command line
options for the allocator to use for SGPRs separate
from VGPRs.
llvm-svn: 354687
Matt Arsenault [Fri, 22 Feb 2019 19:03:36 +0000 (19:03 +0000)]
AMDGPU: Use removeAllRegUnitsForPhysReg
llvm-svn: 354686
Matt Arsenault [Fri, 22 Feb 2019 19:03:31 +0000 (19:03 +0000)]
LiveIntervals: Add removeAllRegUnitsForPhysReg
Convenience wrapper for removing the reg units of
a physical register.
llvm-svn: 354685
Sam Clegg [Fri, 22 Feb 2019 19:00:03 +0000 (19:00 +0000)]
[WebAssembly] Remove debug statement submitted in rL354657
Subscribers: dschuff, jgravelle-google, hiraditya, aheejin, sunfish, llvm-commits
Tags: #llvm
Differential Revision: https://reviews.llvm.org/D58549
llvm-svn: 354684
Mitch Phillips [Fri, 22 Feb 2019 18:45:41 +0000 (18:45 +0000)]
[GN] Updated build file to allow GN builds to succeed at ToT.
llvm-svn: 354683
Guozhi Wei [Fri, 22 Feb 2019 18:04:37 +0000 (18:04 +0000)]
[MBP] Factor out function hasViableTopFallthrough and enhancement
This patch factor out the function hasViableTopFallthrough from rotateLoop. It is also enhanced. Original code checks only if there is a block can be placed before current loop top. This patch also checks if the loop top is the most possible successor of its predecessor. The attached test case shows its effect.
Differential Revision: https://reviews.llvm.org/D58393
llvm-svn: 354682
Simon Pilgrim [Fri, 22 Feb 2019 17:37:59 +0000 (17:37 +0000)]
Fix "not all control paths return" warning. NFCI.
llvm-svn: 354681
Alexey Bataev [Fri, 22 Feb 2019 17:16:50 +0000 (17:16 +0000)]
Revert "[OPENMP] Delayed diagnostics for VLA support."
This reverts commit r354679 to fix the problem with the Windows
buildbots
llvm-svn: 354680
Alexey Bataev [Fri, 22 Feb 2019 16:49:13 +0000 (16:49 +0000)]
[OPENMP] Delayed diagnostics for VLA support.
Generalized processing of the deferred diagnostics for OpenMP/CUDA code.
llvm-svn: 354679
Saleem Abdulrasool [Fri, 22 Feb 2019 16:29:50 +0000 (16:29 +0000)]
CodeGen: use COMDAT for block copy/destroy helpers
SVN r339438 added support to deduplicate the helpers by using a consistent
naming scheme and using LinkOnceODR semantics. This works on ELF by means of
weak linking semantics, and entirely does not work on PE/COFF where you end up
with multiply defined strong symbols, which is a strong error on PE/COFF.
Assign the functions a COMDAT group so that they can be uniqued by the linker.
This fixes the use of blocks in CoreFoundation on Windows.
llvm-svn: 354678
Nirav Dave [Fri, 22 Feb 2019 16:20:34 +0000 (16:20 +0000)]
Disable big-endian constant store merges from rL354676.
llvm-svn: 354677
Nirav Dave [Fri, 22 Feb 2019 16:00:19 +0000 (16:00 +0000)]
[DAGCombine] Fold overlapping constant stores
Fold a smaller constant store into larger constant stores immediately
preceeding it.
Reviewers: rnk, courbet
Subscribers: javed.absar, hiraditya, llvm-commits
Tags: #llvm
Differential Revision: https://reviews.llvm.org/D58468
llvm-svn: 354676
Sanjay Patel [Fri, 22 Feb 2019 15:47:45 +0000 (15:47 +0000)]
[x86] allow narrowing of vector UINT_TO_FP
As discussed in:
D56864
D58197
Always use the narrow (128-bit) instruction when possible.
We already had the signed int version of this transform.
llvm-svn: 354675
Sanjay Patel [Fri, 22 Feb 2019 15:28:22 +0000 (15:28 +0000)]
[x86] simplify code in combineExtractSubvector; NFC
Only the 1st fold is attempted pre-legalization, but it requires
legal (simple) types too, so we don't need an EVT in any of the code.
llvm-svn: 354674
Matt Arsenault [Fri, 22 Feb 2019 15:01:41 +0000 (15:01 +0000)]
BreakCriticalEdges: Update PostDominatorTree
llvm-svn: 354673
Petar Jovanovic [Fri, 22 Feb 2019 14:53:58 +0000 (14:53 +0000)]
[mips][micromips] fix filling delay slots for PseudoIndirectBranch_MM
Filling a delay slot in 32bit jump instructions with a 16bit instruction
can cause issues. According to the documentation such an operation is
unpredictable.
This patch adds opcode Mips::PseudoIndirectBranch_MM alongside
Mips::PseudoIndirectBranch and other instructions that are expanded to jr
instruction and do not allow a 16bit instruction in their delay slots.
Patch by Mirko Brkusanin.
Differential Revision: https://reviews.llvm.org/D58507
llvm-svn: 354672
Alexey Bataev [Fri, 22 Feb 2019 14:42:48 +0000 (14:42 +0000)]
[CUDA]Delayed diagnostics for the asm instructions.
Adapted targetDiag for the CUDA and used for the delayed diagnostics in
asm constructs. Works for both host and device compilation sides.
Differential Revision: https://reviews.llvm.org/D58463
llvm-svn: 354671