Commit Graph

370969 Commits

Author SHA1 Message Date
peter klausler 934b27a9da [flang] Fix actual argument character length and length error reporting
Ensure that character length is properly calculated for
actual arguments to intrinsics, and that source provenance
information is available when expression analysis calls
folding in cases where the length is invalid.

Differential revision: https://reviews.llvm.org/D90636
2020-11-02 13:39:15 -08:00
Tony 68160789c1 [NFC][AMDGPU] Restructure the AMDGPU memory model description
Separate the AMDGPU memory model description into separate sections
for each architecture.

Differential Revision: https://reviews.llvm.org/D90548
2020-11-02 21:32:20 +00:00
Nikita Popov a8ef00af43 [IndVars] Regenerate test checks (NFC) 2020-11-02 22:31:11 +01:00
Fangrui Song 491dd2711f [LazyCallGraph] Build SCCs of the reference graph in order
```
// The legacy PM CGPassManager discovers SCCs this way:
for function in the source order
  tarjanSCC(function)

// While the new PM CGSCCPassManager does:
for function in the reversed source order [1]
  discover a reference graph SCC
  build call graph SCCs inside the reference graph SCC
```

In the common cases, reference graph ~= call graph, the new PM order is
undesired because for `a | b | c` (3 independent functions), the new PM will
process them in the reversed order: c, b, a. If `a <-> b <-> c`, we can see
that `-print-after-all` will report the sole SCC as `scc: (c, b, a)`.

This patch corrects the iteration order. The discovered SCC order will match
the legacy PM in the common cases.

For some tests (`Transforms/Inline/cgscc-*.ll` and
`unittests/Analysis/CGSCCPassManagerTest.cpp`), the behaviors are dependent on
the SCC discovery order and there are too many check lines for the particular
order.  This patch simply reverses the function order to avoid changing too many
check lines.

Differential Revision: https://reviews.llvm.org/D90566
2020-11-02 13:22:42 -08:00
Atmn Patel eed8df6a13 [Coroutines][Docs] Remove frame packing as a TODO
This has already been done by @rjmccall in D76526 (49e5a97ec3), and
9514c048d8. We should remove this from the docs.

Differential Revision: https://reviews.llvm.org/D90550
2020-11-02 15:57:04 -05:00
Duncan P. N. Exon Smith 5cb8d93205 Fix build error on bots after 9f151df178
Attempt to fix build error on bots not seen locally.
2020-11-02 15:55:13 -05:00
Sean Silva 773ad135a3 [mlir][Bufferize] Rename TestBufferPlacement to TestFinalizingBufferize
BufferPlacement is no longer part of bufferization. However, this test
is an important test of "finalizing" bufferize passes.
A "finalizing" bufferize conversion is one that performs a "full"
conversion and expects all tensors to be gone from the program. This in
particular involves rewriting funcs (including block arguments of the
contained region), calls, and returns. The unique property of finalizing
bufferization passes is that they cannot be done via a local
transformation with suitable materializations to ensure composability
(as other bufferization passes do). For example, if a call is
rewritten, the callee needs to be rewritten otherwise the IR will end up
invalid. Thus, finalizing bufferization passes require an atomic change
to the entire program (e.g. the whole module).

This new designation makes it clear also that it shouldn't be testing
bufferization of linalg ops, so the tests have been updated to not use
linalg.generic ops. (linalg.copy is still used as the "copy" op for
copying into out-params)

Differential Revision: https://reviews.llvm.org/D89979
2020-11-02 12:42:32 -08:00
Sean Silva 52b0fe6404 [mlir] Add func-bufferize pass.
This is the most basic possible finalizing bufferization pass, which I
also think is sufficient for most new use cases. The more concentrated
nature of this pass also greatly clarifies the invariants that it
requires on its input to safely transform the program (see the
pass description in Passes.td).

With this pass, I have now upstreamed practically all of the
bufferizations from npcomp (the exception being std.constant, which can
be upstreamed when std.global_memref lands:
https://llvm.discourse.group/t/rfc-global-variables-in-mlir/2076/16 )

Differential Revision: https://reviews.llvm.org/D90205
2020-11-02 12:42:32 -08:00
Fangrui Song 395c8bed64 [MC] Make MCStreamer aware of AsmParser's StartTokLoc
A SMLoc allows MCStreamer to report location-aware diagnostics, which
were previously done by adding SMLoc to various methods (e.g. emit*) in an ad-hoc way.

Since the file:line is most important, the column is less important and
the start token location suffices in many cases, this patch reverts
b7e7131af2

```
// old
symbol-binding-changed.s:6:8: error: local changed binding to STB_GLOBAL
.globl local
       ^
// new
symbol-binding-changed.s:6:1: error: local changed binding to STB_GLOBAL
.globl local
^
```

Reviewed By: rnk

Differential Revision: https://reviews.llvm.org/D90511
2020-11-02 12:32:07 -08:00
Sam McCall 65eaec9bd3 [clangd] Add -log=public to redact all request info from index server logs
The index server has access to potentially-sensitive information, e.g. a
sequence of fuzzyFind requests reveals details about code completions in the
editor which in turn reveals details about the code being edited.
This information is necessary to provide the service, and our intention[1] is it
should never be retained beyond the scope of the request (e.g. not logged).

At the same time, some log messages should be exposed:
 - server startup/index reloads etc that don't pertain to a user request
 - basic request logs (method, latency, #results, error code) for monitoring
 - errors while handling requests, without request-specific data
The -log=public design accommodates these by allowing three types of logs:
 - those not associated with any user RPC request (via context-propagation)
 - those explicitly tagged as [public] in the log line
 - logging of format strings only, with no interpolated data (error level only)

[1] Specifically: Google is likely to run public instances of this server
for LLVM and potentially other projects, they will run in this configuration.
The details agreed in a Google-internal privacy review.
As clangd developers, we'd encourage others to use this configuration for public
instances too.

Differential Revision: https://reviews.llvm.org/D90526
2020-11-02 21:25:12 +01:00
Stephen Kelly 53df3beb62 Ignore template instantiations if not in AsIs mode
Summary:
IgnoreUnlessSpelledInSource mode should ignore these because they are
not written in the source.  This matters for example when trying to
replace types or values which are templated.  The new test in
TransformerTest.cpp in this commit demonstrates the problem.

In existing matcher code, users can write
`unless(isInTemplateInstantiation())` or `unless(isInstantiated())` (the
user must know which to use).  The point of the
TK_IgnoreUnlessSpelledInSource mode is to allow the novice to avoid such
details.  This patch changes the IgnoreUnlessSpelledInSource mode to
skip over implicit template instantiations.

This patch does not change the TK_AsIs mode.

Note: An obvious attempt at an alternative implementation would simply
change the shouldVisitTemplateInstantiations() in ASTMatchFinder.cpp to
return something conditional on the operational TraversalKind.  That
does not work because shouldVisitTemplateInstantiations() is called
before a possible top-level traverse() matcher changes the operational
TraversalKind.

Reviewers: sammccall, aaron.ballman, gribozavr2, ymandel, klimek

Subscribers: cfe-commits

Tags: #clang

Differential Revision: https://reviews.llvm.org/D80961
2020-11-02 20:21:48 +00:00
Stephen Kelly 537cc6dd2b Rename CXXUnresolvedConstructExpr::arg_size for consistency
Make it possible to use argumentCountIs and hasArgument with
CXXUnresolvedConstructExpr.

Differential Revision: https://reviews.llvm.org/D90553
2020-11-02 20:21:48 +00:00
Mircea Trofin 22113341d7 [FileCheck] Added documentation for --allow-unused-prefixes
Differential Revision: https://reviews.llvm.org/D90621
2020-11-02 12:15:45 -08:00
Duncan P. N. Exon Smith 9f151df178 Change Module::ASTFile and ModuleFile::File => Optional<FileEntryRef>, NFC
Change `Module::ASTFile` and `ModuleFile::File` to use
`Optional<FileEntryRef>` instead of `const FileEntry *`. One of many
steps toward removing `FileEntry::getName`.

Differential Revision: https://reviews.llvm.org/D89836
2020-11-02 15:11:51 -05:00
Sam McCall c29513f7e0 [clangd] Fix check-clangd with no clang built
- pass required=False to use_clang(), as we don't need it
- fix required=False (which was unused and rotted):
  - make derived substitutions conditional on it
  - add a feature so we can disable tests that need it
- conditionally disable our one test that depends on %resource_dir.
  This doesn't seem right from first principles, but isn't a big deal.

Differential Revision: https://reviews.llvm.org/D90528
2020-11-02 21:10:43 +01:00
Krzysztof Parzyszek b26a2755dc [Hexagon] Move isTypeForHVX from Hexagon TTI to HexagonSubtarget, NFC
It's useful outside of Hexagon TTI, and with how TTI is implemented,
it is not accessible outside of TTI.
2020-11-02 14:00:45 -06:00
Mircea Trofin 61e8a44655 [NFC][regalloc] Use MCRegister appropriately
Differential Revision: https://reviews.llvm.org/D90506
2020-11-02 11:48:49 -08:00
Stanislav Mekhanoshin c9d6fe6f7d [AMDGPU] Improve FLAT scratch detection
We were useing too broad check for isFLATScratch() which also
includes FLAT global.

Differential Revision: https://reviews.llvm.org/D90505
2020-11-02 11:37:33 -08:00
Ettore Tiotto 4274cbba1c [PartialInliner]: Handle code regions in a switch stmt cases
This patch enhances computeOutliningColdRegionsInfo() to allow it to
consider regions containing a single basic block and a single
predecessor as candidate for partial inlining.

Reviewed By: fhann

Differential Revision: https://reviews.llvm.org/D89911
2020-11-02 14:32:45 -05:00
Mehdi Amini 9be3c01eb9 Undef the `DEFINE_C_API_STRUCT` macro after using it in the MLIR C API header (NFC)
Leaking macros isn't a good practice when defining headers. This
requires to duplicate the macro definition in every header though, but
that seems like a better tradeoff right now.

Differential Revision: https://reviews.llvm.org/D90633
2020-11-02 19:18:32 +00:00
Christopher Di Bella ba18bc4925 [Sema] adds -Wfree-nonheap-object member var checks
Checks to make sure that stdlib's (std::)free is being appropriately
used for member variables.

Differential Revision: https://reviews.llvm.org/D90269
2020-11-02 11:03:28 -08:00
peter klausler e8f96899e1 [flang] Allow array constructor implied DO loop indices as constant expressions
When the bounds of an implied DO loop in an array constructor are
constant, the index variable of that loop is considered a constant
expression and can be used as such in the items in the value list
of the implied DO loop.  Since the KIND type parameter values of items
in the value list can depend on the various values taken by such an
index, it is not possible to represent those values with a single
typed expression.  So implement such loops by taking multiple passes
over the parse tree of the implied DO loop instead.

Differential revision: https://reviews.llvm.org/D90494
2020-11-02 11:00:17 -08:00
Thomas Raoux 9081e7594d [mlir][vector] Address post-commit review comments on vector ops folding patterns
Differential Revision: https://reviews.llvm.org/D90183
2020-11-02 10:57:32 -08:00
Stella Laurenzo b85f2f5c5f [mlir][CAPI] Add APIs for mlirOperationGetName and Identifier.
Reviewed By: ftynse

Differential Revision: https://reviews.llvm.org/D90583
2020-11-02 18:52:13 +00:00
Peter Penzin e59726220f [LLD] [COFF] Align all debug directories
Match MSVC linker output - align all debug directories on four bytes,
while removing debug directory alignment. This would have the same
effect on CETCOMPAT support as D89919.

Chromium bug: https://crbug.com/1136664

Differential Revision: https://reviews.llvm.org/D89921
2020-11-02 10:47:51 -08:00
LLVM GN Syncbot 31a3aca7f9 [gn build] Port c17da8676a 2020-11-02 18:32:12 +00:00
Duncan P. N. Exon Smith c17da8676a Support: Avoid std::tie in Support/FileSystem/UniqueID.h, NFC
Running `-fsyntax-only` on UniqueID.h is 2x faster with this patch
(which avoids calling `std::tie` for `operator<`).  Since the transitive
includers of this file will go up as `FileEntryRef` gets used in more
places, avoid that compile-time hit.  This is a follow-up to
23ed570af1 (suggested by Reid Kleckner).

Also drop the `<tuple>` include from FileSystem.h (which was vestigal
from before UniqueID.h was split out).

Differential Revision: https://reviews.llvm.org/D90471
2020-11-02 13:26:15 -05:00
Alex Richardson 906b9dbc9d [clang-format] Improve BAS_DontAlign+AllowAllArgumentsOnNextLine=false
TokenAnnotator::splitPenalty() was always returning 0 for opening parens if
AlignAfterOpenBracket was set to BAS_DontAlign, so the preferred point for
line breaking was always after the open paren (and was ignoring
PenaltyBreakBeforeFirstCallParameter). This change restricts the zero
penalty to the AllowAllArgumentsOnNextLine case. This results in improved
formatting for FreeBSD where we set AllowAllArgumentsOnNextLine: false
and a high value for PenaltyBreakBeforeFirstCallParameter to avoid breaking
after the open paren.

Before:
```
functionCall(
    paramA, paramB, paramC);
void functionDecl(
    int A, int B, int C)
```
After:
```
functionCall(paramA, paramB,
    paramC);
void functionDecl(int A, int B,
    int C)
```

Reviewed By: MyDeveloperDay

Differential Revision: https://reviews.llvm.org/D90246
2020-11-02 17:52:37 +00:00
Alex Richardson 5bc438efcf [AtomicExpand] Avoid creating an unnamed libcall
I recently modified this pass to better support CHERI-RISC-V and while
doing so I noticed that this pass was calling M->getOrInsertFunction()
with the result of TLI->getLibcallName(RTLibType). However, AMDGPU fills
the libcalls array with nullptr, so this creates an anonymous function
instead. This patch changes expandAtomicOpToLibcall to return false in
case the libcall does not exist and changes the assert() in the callees to
a report_fatal_error() instead.

Reviewed By: arsenm

Differential Revision: https://reviews.llvm.org/D88800
2020-11-02 17:52:37 +00:00
Aaron Ballman 2e2be3d964 Correct the nomerge attribute documentation
The nomerge attribute is a statement attribute not a function attribute.
2020-11-02 12:49:40 -05:00
David Green 5ac21f9bfe [ARM] Cost model test for target intrinsics. NFC 2020-11-02 17:46:48 +00:00
Ben Dunbobbin 5024d3aa18 Revert "[Clang] Add the ability to map DLL storage class to visibility"
This reverts commit 415f7ee883.

The added tests were failing on the build bots!
2020-11-02 17:33:54 +00:00
Craig Topper 9ac2910093 [RISCV] Make SelectRORIW handle the commutability of OR.
The SHL and SRL could be in opposite order so account for that.

Differential Revision: https://reviews.llvm.org/D90586
2020-11-02 09:32:54 -08:00
Simon Pilgrim 004bacb9aa [AggressiveInstCombine] Add funnel shift tests
Based off existing rotate test coverage
2020-11-02 17:26:36 +00:00
Simon Pilgrim 9c92daaa87 [AggressiveInstCombine] Regenerate rotate tests 2020-11-02 17:26:35 +00:00
Louis Dionne d6e2bac195 [libc++] Migrate warning flags to the DSL
This makes us closer to running the test suite on platforms where the
legacy test suite configuration doesn't work.

One notable change after this commit is that the tests will be run with
warnings enabled on GCC too, which wasn't the case before. However,
previous commits should have tweaked the test suite to make sure it
passes with warnings enabled on GCC.

Note that warnings can still be disabled with `--param enable_warnings=False`,
as before.

Differential Revision: https://reviews.llvm.org/D90432
2020-11-02 12:25:05 -05:00
peter klausler 8fc07fed32 [flang] Design document for runtime derived type descriptions (NFC)
Differential revision: https://reviews.llvm.org/D90500
2020-11-02 09:23:22 -08:00
Paul C. Anagnostopoulos 473f8ae699 [TableGen] Fix a couple of minor issues regarding the paste operator.
Update the documentation to fully describe it.

Differential Revision: https://reviews.llvm.org/D90617
2020-11-02 12:21:54 -05:00
Sanjay Patel 35fa3c474f [x86] add AVX2 cost model entries for maxnum of 256-bit vectors
As noticed in D90554 ,
the AVX2 costs for 256-bit vectors did not include FMAXNUM entries,
so we fell back to AVX1 which assumes those ops will be split into
128-bit halves or something close to that.

Differential Revision: https://reviews.llvm.org/D90613
2020-11-02 12:20:17 -05:00
Sanjay Patel 9586656f4e [InstCombine] add multi-use tests for negator; NFC
PR47997
2020-11-02 12:20:17 -05:00
Craig Topper 7142ec3aaf [RISCV] When matching RORIW, make sure the same input is given to both shifts.
The code is looking for (sext_inreg (or (shl X, C2), (shr (and Y, C3), C1))).
We need to ensure X and Y are the same.

Differential Revision: https://reviews.llvm.org/D90580
2020-11-02 09:12:40 -08:00
Simon Pilgrim 55f15f99cb [AggressiveInstCombine] foldGuardedRotateToFunnelShift - generalize rotation to funnel shift matcher.
Replace matchRotate with a more general matchFunnelShift - at the moment this is still just used for rotation patterns.
2020-11-02 17:09:17 +00:00
Ben Dunbobbin 415f7ee883 [Clang] Add the ability to map DLL storage class to visibility
For PlayStation we offer source code compatibility with
Microsoft's dllimport/export annotations; however, our file
format is based on ELF.

To support this we translate from DLL storage class to ELF
visibility at the end of codegen in Clang.

Other toolchains have used similar strategies (e.g. see the
documentation for this ARM toolchain:

https://developer.arm.com/documentation/dui0530/i/migrating-from-rvct-v3-1-to-rvct-v4-0/changes-to-symbol-visibility-between-rvct-v3-1-and-rvct-v4-0)

This patch adds the ability to perform this translation. Options
are provided to support customizing the mapping behaviour.

Differential Revision: https://reviews.llvm.org/D89970
2020-11-02 17:08:23 +00:00
Teresa Johnson d1e02ea47a [test] Fix unused FileCheck prefix in ThinLTO test
Add intended and missing prefix check.
2020-11-02 09:06:36 -08:00
Shoaib Meenai 6bd01b8184 [clangd] Account for vendor in version string
The vendor will be prefixed to the "clangd" and can be an arbitrary
string, so account for it in the test.

Reviewed By: sammccall

Differential Revision: https://reviews.llvm.org/D90517
2020-11-02 09:04:44 -08:00
Shoaib Meenai 4e4ab8e015 [clang] Limit scope of CLANG_VENDOR definition
It's only used by Version.cpp, so limit the definition to just that one
file instead of making all of Clang recompile if you change CLANG_VENDOR.

Reviewed By: phosek

Differential Revision: https://reviews.llvm.org/D90516
2020-11-02 09:04:43 -08:00
Teresa Johnson 7f32ddc99b [MemProf] Reenable test with fix for bot failures
The issue was unexpected macro expansion when the bot's test output
directory contained a token matching a build system macro (e.g.
"linux"). Switch to using a hardcoded path, which is invalid but is
sufficient for ensuring that the path is passed down to the runtime.

Differential Revision: https://reviews.llvm.org/D90466
2020-11-02 09:00:04 -08:00
Louis Dionne 6b2de7c53a [libc++][CI] Allow retries in case an agent is lost
We see this fairly often on our Linux bots, which appear to be killed
by GCE from time to time.
2020-11-02 11:58:45 -05:00
Pedro Tammela 4d7d6f276c [LLDB/Lua] call lua_close() on Lua dtor
This patch calls `lua_close()` on Lua dtor.

This guarantees that the Lua GC finalizers are honored, aside from the
usual internal clean up.

It also guarantees a call to the `__close` metamethod of any active
to-be-closed variable in Lua 5.4.

Since the previous `luaL_openlibs()` was a noop, because the standard
library is cached internally, I've removed it.

Differential Revision: https://reviews.llvm.org/D90557
2020-11-02 16:52:30 +00:00
Mircea Trofin a1aaa9ef78 [FileCheck] Fix comments and eof in allow-unused-prefixes.txt 2020-11-02 08:51:01 -08:00