Commit Graph

515 Commits

Author SHA1 Message Date
Alexander Kornienko 2a8c18d991 Fix typos in clang
Found via codespell -q 3 -I ../clang-whitelist.txt
Where whitelist consists of:

  archtype
  cas
  classs
  checkk
  compres
  definit
  frome
  iff
  inteval
  ith
  lod
  methode
  nd
  optin
  ot
  pres
  statics
  te
  thru

Patch by luzpaz! (This is a subset of D44188 that applies cleanly with a few
files that have dubious fixes reverted.)

Differential revision: https://reviews.llvm.org/D44188

llvm-svn: 329399
2018-04-06 15:14:32 +00:00
Richard Smith e78fac5126 PR36992: do not store beyond the dsize of a class object unless we know
the tail padding is not reused.

We track on the AggValueSlot (and through a couple of other
initialization actions) whether we're dealing with an object that might
share its tail padding with some other object, so that we can avoid
emitting stores into the tail padding if that's the case. We still
widen stores into tail padding when we can do so.

Differential Revision: https://reviews.llvm.org/D45306

llvm-svn: 329342
2018-04-05 20:52:58 +00:00
Yaxun Liu ac1263cd54 [AMDGPU] Fix codegen for inline assembly
Need to override convertConstraint to recognise amdgpu specific register names.

Differential Revision: https://reviews.llvm.org/D44533

llvm-svn: 328359
2018-03-23 19:43:42 +00:00
Zhihao Yuan a8e2bb3949 Fix codegen for structured binding binding in conditions
Summary:
The codegen for conditions assumes that a normal variable declaration is used in a condition, but this is not the case when a structured binding is used.

This fixes [PR36747](http://llvm.org/pr36747).

Thanks Nicolas Lesser for contributing the patch.

Reviewers: lichray, rsmith

Reviewed By: lichray

Subscribers: cfe-commits

Tags: #clang

Differential Revision: https://reviews.llvm.org/D44534

llvm-svn: 327780
2018-03-17 21:01:27 +00:00
Reid Kleckner b75a3f04ec [WinEH] Put funclet bundles on inline asm calls
Summary:
Fixes PR36247, which is where WinEHPrepare replaces inline asm in
funclets with unreachable.

Make getBundlesForFunclet return by value to simplify some call sites.

Reviewers: smeenai, majnemer

Subscribers: eraman, cfe-commits

Differential Revision: https://reviews.llvm.org/D43033

llvm-svn: 324689
2018-02-09 00:16:41 +00:00
Ivan A. Kosarev 1860b520a2 [CodeGen] Decorate aggregate accesses with TBAA tags
Differential Revision: https://reviews.llvm.org/D41539

llvm-svn: 323421
2018-01-25 14:21:55 +00:00
Alexey Bataev a8a9153a37 [OPENMP] Support for -fopenmp-simd option with compilation of simd loops
only.

Added support for -fopenmp-simd option that allows compilation of
simd-based constructs without emission of OpenMP runtime calls.

llvm-svn: 321560
2017-12-29 18:07:07 +00:00
Hans Wennborg 989a65cd29 Fix some -Wunused-variable warnings
llvm-svn: 318578
2017-11-18 00:49:18 +00:00
Matt Arsenault a5888a730d OpenCL: Assume inline asm is convergent
Already done for CUDA.

llvm-svn: 318098
2017-11-13 22:40:55 +00:00
Simon Pilgrim bbef124ea3 [MS-InlineAsm] Fix cast assertion with vector spills (PR34021)
Differential Revision: https://reviews.llvm.org/D37448

llvm-svn: 313019
2017-09-12 11:05:42 +00:00
Karl-Johan Karlsson 33e205a40f Debug info: Fixed faulty debug locations for attributed statements
Summary:
As the attributed statements are considered simple statements no
stoppoint was generated before emitting attributed do/while/for/range-
statement. This lead to faulty debug locations.

Reviewers: echristo, aaron.ballman, dblaikie

Reviewed By: dblaikie

Subscribers: bjope, aprantl, cfe-commits

Differential Revision: https://reviews.llvm.org/D37428

llvm-svn: 312623
2017-09-06 08:47:18 +00:00
Vedant Kumar c34d343f15 [ubsan] Improve diagnostics for return value checks (clang)
This patch makes ubsan's nonnull return value diagnostics more precise,
which makes the diagnostics more useful when there are multiple return
statements in a function. Example:

1 |__attribute__((returns_nonnull)) char *foo() {
2 |  if (...) {
3 |    return expr_which_might_evaluate_to_null();
4 |  } else {
5 |    return another_expr_which_might_evaluate_to_null();
6 |  }
7 |} // <- The current diagnostic always points here!

runtime error: Null returned from Line 7, Column 2!
With this patch, the diagnostic would point to either Line 3, Column 5
or Line 5, Column 5.

This is done by emitting source location metadata for each return
statement in a sanitized function. The runtime is passed a pointer to
the appropriate metadata so that it can prepare and deduplicate reports.

Compiler-rt patch (with more tests): https://reviews.llvm.org/D34298

Differential Revision: https://reviews.llvm.org/D34299

llvm-svn: 306163
2017-06-23 21:32:38 +00:00
Craig Topper 61e14d8dfe [CodeGen] Use preincrement version of APInt::operator++ instead of postincrement to avoid creating and immediately discarding a temporary APInt.
This is preparation for a clang change to improve the [[nodiscard]] warning to not be ignored on methods that return a class marked [[nodiscard]] that are defined in the class itself. See D32207.

llvm-svn: 300756
2017-04-19 21:02:45 +00:00
Reid Kleckner de86482ce0 Update Clang for LLVM rename AttributeSet -> AttributeList
llvm-svn: 298394
2017-03-21 16:57:30 +00:00
Gor Nishanov 90be1213d2 [coroutines] Add co_return statement emission
Summary:
Added co_return statement emission.

Tweaked coro-alloc.cpp test to use co_return to trigger coroutine processing instead of co_await, since this change starts emitting the body of the coroutine and await expression handling has not been upstreamed yet.

Reviewers: rsmith, majnemer, EricWF, aaron.ballman

Reviewed By: rsmith

Subscribers: majnemer, llvm-commits, mehdi_amini

Differential Revision: https://reviews.llvm.org/D29979

llvm-svn: 297076
2017-03-06 21:12:54 +00:00
Kelvin Li da68118729 [OpenMP] Sema and parsing for 'target teams distribute simd’ pragma
This patch is to implement sema and parsing for 'target teams distribute simd’ pragma.
    
Differential Revision: https://reviews.llvm.org/D28252

llvm-svn: 291579
2017-01-10 18:08:18 +00:00
Kelvin Li 1851df563d [OpenMP] Sema and parsing for 'target teams distribute parallel for simd’ pragma
This patch is to implement sema and parsing for 'target teams distribute parallel for simd’ pragma.

Differential Revision: https://reviews.llvm.org/D28202

llvm-svn: 290862
2017-01-03 05:23:48 +00:00
Kelvin Li 80e8f56284 [OpenMP] Sema and parsing for 'target teams distribute parallel for’ pragma
This patch is to implement sema and parsing for 'target teams distribute parallel for’ pragma.

Differential Revision: https://reviews.llvm.org/D28160

llvm-svn: 290725
2016-12-29 22:16:30 +00:00
Kelvin Li 83c451e998 [OpenMP] Sema and parsing for 'target teams distribute' pragma
This patch is to implement sema and parsing for 'target teams distribute' pragma.

Differential Revision: https://reviews.llvm.org/D28015

llvm-svn: 290508
2016-12-25 04:52:54 +00:00
Kelvin Li bf594a5600 [OpenMP] Sema and parsing for 'target teams' pragma
This patch is to implement sema and parsing for 'target teams' pragma.

Differential Revision: https://reviews.llvm.org/D27818

llvm-svn: 290038
2016-12-17 05:48:59 +00:00
Richard Smith 30e304e2a6 Remove custom handling of array copies in lambda by-value array capture and
copy constructors of classes with array members, instead using
ArrayInitLoopExpr to represent the initialization loop.

This exposed a bug in the static analyzer where it was unable to differentiate
between zero-initialized and unknown array values, which has also been fixed
here.

llvm-svn: 289618
2016-12-14 00:03:17 +00:00
Kelvin Li 7ade93f5e2 [OpenMP] Sema and parsing for 'teams distribute parallel for' pragma
This patch is to implement sema and parsing for 'teams distribute parallel for' pragma.
    
Differential Revision: https://reviews.llvm.org/D27345

llvm-svn: 289179
2016-12-09 03:24:30 +00:00
Kelvin Li 579e41ced2 [OpenMP] Sema and parsing for 'teams distribute parallel for simd' pragma
This patch is to implement sema and parsing for 'teams distribute parallel for simd' pragma.

Differential Revision: https://reviews.llvm.org/D27084

llvm-svn: 288294
2016-11-30 23:51:03 +00:00
Reid Kleckner 08ebbcebb9 [MS] Mangle a unique ID into all MS inline asm labels
This solves PR23715 in a way that is compatible with LTO.

MSVC supports jumping to source-level labels and between inline asm
blocks, but we don't.

Also revert the old solution, r255201, which was to mark these calls as
noduplicate.

llvm-svn: 288059
2016-11-28 20:52:19 +00:00
Amara Emerson 652795db16 Add the loop end location to the loop metadata. This additional information
can be used to improve the locations when generating remarks for loops.

Depends on the companion LLVM change r286227.

Patch by Florian Hahn.

Differential Revision: https://reviews.llvm.org/D25764

llvm-svn: 286456
2016-11-10 14:44:30 +00:00
Gor Nishanov 8df64e940d [coroutines] Add allocation and deallocation substatements.
Summary:
SemaCoroutine: Add allocation / deallocation substatements.
CGCoroutine/Test: Emit allocation and deallocation + test.

Reviewers: rsmith

Subscribers: ABataev, EricWF, llvm-commits, mehdi_amini

Differential Revision: https://reviews.llvm.org/D25879

llvm-svn: 285306
2016-10-27 16:28:31 +00:00
Kelvin Li 4e325f77a9 Re-apply patch r279045.
llvm-svn: 285066
2016-10-25 12:50:55 +00:00
Richard Smith d8e3ac3185 Fix a couple of wrong-code bugs in switch-on-constant optimization:
* recurse through intermediate LabelStmts and AttributedStmts when checking
   whether a statement inside a switch declares a variable
 * if the end of a compound statement is reachable from the chosen case label,
   and the compound statement contains a variable declaration, it's not valid
   to just emit the contents of the compound statement -- we must emit the
   statement itself or we lose the scope (and thus end lifetimes at the wrong
   point)

llvm-svn: 281797
2016-09-16 23:30:39 +00:00
Diana Picus 8b44bbc077 Revert "[OpenMP] Sema and parsing for 'teams distribute simd’ pragma"
This reverts commit r279003 as it breaks some of our buildbots (e.g.
clang-cmake-aarch64-quick, clang-x86_64-linux-selfhost-modules).

The error is in OpenMP/teams_distribute_simd_ast_print.cpp:
clang: /home/buildslave/buildslave/clang-cmake-aarch64-quick/llvm/include/llvm/ADT/DenseMap.h:527:
bool llvm::DenseMapBase<DerivedT, KeyT, ValueT, KeyInfoT, BucketT>::LookupBucketFor(const LookupKeyT&, const BucketT*&) const
[with LookupKeyT = clang::Stmt*; DerivedT = llvm::DenseMap<clang::Stmt*, long unsigned int>;
      KeyT = clang::Stmt*; ValueT = long unsigned int;
      KeyInfoT = llvm::DenseMapInfo<clang::Stmt*>;
      BucketT = llvm::detail::DenseMapPair<clang::Stmt*, long unsigned int>]:
Assertion `!KeyInfoT::isEqual(Val, EmptyKey) && !KeyInfoT::isEqual(Val, TombstoneKey) &&
"Empty/Tombstone value shouldn't be inserted into map!"' failed.

llvm-svn: 279045
2016-08-18 09:25:07 +00:00
Kelvin Li 0e3bde8216 [OpenMP] Sema and parsing for 'teams distribute simd’ pragma
This patch is to implement sema and parsing for 'teams distribute simd’ pragma.

This patch is originated by Carlo Bertolli.

Differential Revision: https://reviews.llvm.org/D23528

llvm-svn: 279003
2016-08-17 23:13:03 +00:00
Kelvin Li 0253287633 [OpenMP] Sema and parsing for 'teams distribute' pragma
This patch is to implement sema and parsing for 'teams distribute' pragma.

Differential Revision: https://reviews.llvm.org/D23189

llvm-svn: 277818
2016-08-05 14:37:37 +00:00
Wolfgang Pieb 24e03341af Reverting r275115 which caused PR28634.
When empty (forwarding) basic blocks that are referenced by user labels
are removed, incorrect code may be generated.

llvm-svn: 276361
2016-07-21 23:28:18 +00:00
Erik Pilkington 1ac8adfcab [CodeGen] Fix a crash when constant folding switch statement
Differential revision: https://reviews.llvm.org/D22542

llvm-svn: 276350
2016-07-21 22:31:40 +00:00
Kelvin Li 986330c190 [OpenMP] Sema and parsing for 'target simd' pragma
This patch is to implement sema and parsing for 'target simd' pragma.

Differential Revision: https://reviews.llvm.org/D22479

llvm-svn: 276203
2016-07-20 22:57:10 +00:00
Kelvin Li a579b9196c [OpenMP] Sema and parsing for 'target parallel for simd' pragma
This patch is to implement sema and parsing for 'target parallel for simd' pragma.

Differential Revision: http://reviews.llvm.org/D22096

llvm-svn: 275365
2016-07-14 02:54:56 +00:00
Richard Smith a547eb27fa P0305R0: Semantic analysis and code generation for C++17 init-statement for 'if' and 'switch':
if (stmt; condition) { ... }

Patch by Anton Bikineev! Some minor formatting and comment tweets by me.

llvm-svn: 275350
2016-07-14 00:11:03 +00:00
Wolfgang Pieb 5675c96987 Prevent the creation of empty (forwarding) blocks resulting from nested ifs.
Summary:
Nested if statements can generate empty BBs whose terminator branches 
unconditionally to its successor. These branches are not eliminated
to help generate better line number information in some cases, but there
is no reason to keep the empty blocks that result from nested ifs.

Reviewers: mehdi_amini, dblaikie, echristo

Subscribers: mehdi_amini, cfe-commits

Differential review: http://reviews.llvm.org/D11360
 

llvm-svn: 275115
2016-07-11 22:22:23 +00:00
Kelvin Li 787f3fcc6b [OpenMP] Sema and parsing for 'distribute simd' pragma
Summary: This patch is an implementation of sema and parsing for the OpenMP composite pragma 'distribute simd'.

Differential Revision: http://reviews.llvm.org/D22007

llvm-svn: 274604
2016-07-06 04:45:38 +00:00
Kelvin Li 4a39add05e [OpenMP] Sema and parse for 'distribute parallel for simd'
Summary: This patch is an implementation of sema and parsing for the OpenMP composite pragma 'distribute parallel for simd'.

Differential Revision: http://reviews.llvm.org/D21977

llvm-svn: 274530
2016-07-05 05:00:15 +00:00
Carlo Bertolli 9925f15661 Resubmission of http://reviews.llvm.org/D21564 after fixes.
[OpenMP] Initial implementation of parse and sema for composite pragma 'distribute parallel for'

This patch is an initial implementation for #distribute parallel for.
The main differences that affect other pragmas are:

The implementation of 'distribute parallel for' requires blocking of the associated loop, where blocks are "distributed" to different teams and iterations within each block are scheduled to parallel threads within each team. To implement blocking, sema creates two additional worksharing directive fields that are used to pass the team assigned block lower and upper bounds through the outlined function resulting from 'parallel'. In this way, scheduling for 'for' to threads can use those bounds.
As a consequence of blocking, the stride of 'distribute' is not 1 but it is equal to the blocking size. This is returned by the runtime and sema prepares a DistIncrExpr variable to hold that value.
As a consequence of blocking, the global upper bound (EnsureUpperBound) expression of the 'for' is not the original loop upper bound (e.g. in for(i = 0 ; i < N; i++) this is 'N') but it is the team-assigned block upper bound. Sema creates a new expression holding the calculation of the actual upper bound for 'for' as UB = min(UB, PrevUB), where UB is the loop upper bound, and PrevUB is the team-assigned block upper bound.

llvm-svn: 273884
2016-06-27 14:55:37 +00:00
Carlo Bertolli b8503d5399 Revert r273705
[OpenMP] Initial implementation of parse and sema for composite pragma 'distribute parallel for'

llvm-svn: 273709
2016-06-24 19:20:02 +00:00
Carlo Bertolli e77d6e0e4d [OpenMP] Initial implementation of parse and sema for composite pragma 'distribute parallel for'
http://reviews.llvm.org/D21564

This patch is an initial implementation for #distribute parallel for.
The main differences that affect other pragmas are:

The implementation of 'distribute parallel for' requires blocking of the associated loop, where blocks are "distributed" to different teams and iterations within each block are scheduled to parallel threads within each team. To implement blocking, sema creates two additional worksharing directive fields that are used to pass the team assigned block lower and upper bounds through the outlined function resulting from 'parallel'. In this way, scheduling for 'for' to threads can use those bounds.
As a consequence of blocking, the stride of 'distribute' is not 1 but it is equal to the blocking size. This is returned by the runtime and sema prepares a DistIncrExpr variable to hold that value.
As a consequence of blocking, the global upper bound (EnsureUpperBound) expression of the 'for' is not the original loop upper bound (e.g. in for(i = 0 ; i < N; i++) this is 'N') but it is the team-assigned block upper bound. Sema creates a new expression holding the calculation of the actual upper bound for 'for' as UB = min(UB, PrevUB), where UB is the loop upper bound, and PrevUB is the team-assigned block upper bound.

llvm-svn: 273705
2016-06-24 18:53:35 +00:00
Richard Smith b130fe7d31 Implement p0292r2 (constexpr if), a likely C++1z feature.
llvm-svn: 273602
2016-06-23 19:16:49 +00:00
Alexey Bataev 61deb4dadc Revert accidential "[MSVC] Late parsing of in-class defined member functions in template"
This reverts commit 0253605771b8bd9d414aba74fe2742c730d6fd1a.

llvm-svn: 272776
2016-06-15 11:24:54 +00:00
Alexey Bataev 86e786bd17 [MSVC] Late parsing of in-class defined member functions in template
classes.

MSVC actively uses unqualified lookup in dependent bases, lookup at the
instantiation point (non-dependent names may be resolved on things
declared later) etc. and all this stuff is the main cause of
incompatibility between clang and MSVC.

Clang tries to emulate MSVC behavior but it may fail in many cases.
clang could store lexed tokens for member functions definitions within
ClassTemplateDecl for later parsing during template instantiation.

It will allow resolving many possible issues with lookup in dependent
base classes and removing many already existing MSVC-specific
hacks/workarounds from the clang code.

llvm-svn: 272774
2016-06-15 11:19:39 +00:00
Justin Lebar f179364341 [CUDA] Conservatively mark inline asm as convergent.
Summary:
This is particularly important because a some convergent CUDA intrinsics
(e.g.  __shfl_down) are implemented in terms of inline asm.

Reviewers: tra

Subscribers: cfe-commits

Differential Revision: http://reviews.llvm.org/D20836

llvm-svn: 271336
2016-05-31 21:27:13 +00:00
Samuel Antao 686c70c3dc [OpenMP] Parsing and sema support for target update directive
Summary:
This patch is to add parsing and sema support for `target update` directive. Support for the `to` and `from` clauses will be added by a different patch.  This patch also adds support for other clauses that are already implemented upstream and apply to `target update`, e.g. `device` and `if`.

This patch is based on the original post by Kelvin Li.

Reviewers: hfinkel, carlo.bertolli, kkwli0, arpith-jacob, ABataev

Subscribers: caomhin, cfe-commits

Differential Revision: http://reviews.llvm.org/D15944

llvm-svn: 270878
2016-05-26 17:30:50 +00:00
Hal Finkel c07e19b2c1 Add a loop's debug location to its llvm.loop metadata
Getting accurate locations for loops is important, because those locations are
used by the frontend to generate optimization remarks. Currently, optimization
remarks for loops often appear on the wrong line, often the first line of the
loop body instead of the loop itself. This is confusing because that line might
itself be another loop, or might be somewhere else completely if the body was
an inlined function call. This happens because of the way we find the loop's
starting location. First, we look for a preheader, and if we find one, and its
terminator has a debug location, then we use that. Otherwise, we look for a
location on an instruction in the loop header.

The fallback heuristic is not bad, but will almost always find the beginning of
the body, and not the loop statement itself. The preheader location search
often fails because there's often not a preheader, and even when there is a
preheader, depending on how it was formed, it sometimes carries the location of
some preceeding code.

I don't see any good theoretical way to fix this problem. On the other hand,
this seems like a straightforward solution: Put the debug location in the
loop's llvm.loop metadata. When emitting debug information, this commit causes
us to add the debug location as an operand to each loop's llvm.loop metadata.
Thus, we now generate this metadata for all loops (not just loops with
optimization hints) when we're otherwise generating debug information.

The remark test case changes depend on the companion LLVM commit r270771.

llvm-svn: 270772
2016-05-25 21:53:24 +00:00
Sanjay Patel 341890ad70 reduce indentation; NFCI
llvm-svn: 266765
2016-04-19 17:13:14 +00:00
Richard Smith 01694c340d P0184R0: Allow types of 'begin' and 'end' expressions in range-based for loops to differ.
llvm-svn: 263895
2016-03-20 10:33:40 +00:00