Commit Graph

56159 Commits

Author SHA1 Message Date
David Bolvansky aaea76ba02 [Diagnostics] Emit better -Wbool-operation's warning message if we known that the result is always true
llvm-svn: 373973
2019-10-07 21:57:03 +00:00
Alexey Bataev d457f7e080 [OPENMP]Fix caonical->canonical, NFC.
Fixed typo.

llvm-svn: 373952
2019-10-07 19:57:40 +00:00
Amy Huang 6bdfe3aeba Fix for expanding __pragmas in macro arguments
Summary:
Avoid parsing __pragma into an annotation token when macro arguments are pre-expanded.
This is what clang currently does when parsing _Pragmas.

Fixes https://bugs.llvm.org/show_bug.cgi?id=41128, where clang crashed
when trying to get the length of an annotation token.

Subscribers: cfe-commits

Tags: #clang

Differential Revision: https://reviews.llvm.org/D68114

llvm-svn: 373950
2019-10-07 19:41:53 +00:00
Alexey Bataev bef93a98cd [OPENMP50]Treat range-based for as canonical loop.
According to OpenMP 5.0, range-based for is also considered as a
canonical form of loops.

llvm-svn: 373939
2019-10-07 18:54:57 +00:00
Erich Keane 8a410bcef0 Fix Calling Convention through aliases
r369697 changed the behavior of stripPointerCasts to no longer include
aliases.  However, the code in CGDeclCXX.cpp's createAtExitStub counted
on the looking through aliases to properly set the calling convention of
a call.

The result of the change was that the calling convention mismatch of the
call would be replaced with a llvm.trap, causing a runtime crash.

Differential Revision: https://reviews.llvm.org/D68584

llvm-svn: 373929
2019-10-07 17:28:03 +00:00
Paul Hoad 2c3f73800f [clang-format] [PR27004] omits leading space for noexcept when formatting operator delete()
Summary:
clang-format is incorrectly thinking the parameter parens are part of a cast operation, this is resulting in there sometimes being not space between the paren and the noexcept (and other keywords like volatile etc..)

```
void operator++(int) noexcept;
void operator++(int &) noexcept;
void operator delete(void *, std::size_t, const std::nothrow_t &)noexcept;
```

Reviewers: klimek, owenpan, mitchell-stellar

Reviewed By: mitchell-stellar

Subscribers: cfe-commits

Tags: #clang-format, #clang

Differential Revision: https://reviews.llvm.org/D68481

llvm-svn: 373922
2019-10-07 17:03:44 +00:00
Simon Pilgrim 7e38f0c408 Codegen - silence static analyzer getAs<> null dereference warnings. NFCI.
The static analyzer is warning about potential null dereferences, but in these cases we should be able to use castAs<> directly and if not assert will fire for us.

llvm-svn: 373918
2019-10-07 16:42:25 +00:00
Yitzhak Mandelbaum d5b983555f [libTooling] Add `toString` method to the Stencil class
Summary:
`toString` generates a string representation of the stencil.

Patch by Harshal T. Lehri.

Reviewers: gribozavr

Subscribers: cfe-commits

Tags: #clang

Differential Revision: https://reviews.llvm.org/D68574

llvm-svn: 373916
2019-10-07 16:20:22 +00:00
Simon Pilgrim dc4d908d6e Sema - silence static analyzer getAs<> null dereference warnings. NFCI.
The static analyzer is warning about potential null dereferences, but in these cases we should be able to use castAs<> directly and if not assert will fire for us.

llvm-svn: 373911
2019-10-07 14:25:46 +00:00
Simon Pilgrim 8dc1700979 RewriteModernObjC - silence static analyzer getAs<> null dereference warnings. NFCI.
The static analyzer is warning about potential null dereferences, but in these cases we should be able to use castAs<> directly and if not assert will fire for us.

llvm-svn: 373905
2019-10-07 13:58:15 +00:00
Simon Pilgrim 3459a4c770 AST - silence static analyzer getAs<> null dereference warnings. NFCI.
The static analyzer is warning about potential null dereferences, but in these cases we should be able to use castAs<> directly and if not assert will fire for us.

llvm-svn: 373904
2019-10-07 13:58:05 +00:00
Richard Smith df3761f6dc [c++20] Check for a class-specific operator delete when deleting an
object of class type with a virtual destructor.

llvm-svn: 373875
2019-10-07 03:14:28 +00:00
Richard Smith 74ce7112c3 Fix behavior of __builtin_bit_cast when the From and To types are the
same.

We were missing the lvalue-to-rvalue conversion entirely in this case,
and in fact still need the full CK_LValueToRValueBitCast conversion to
perform a load with no TBAA.

llvm-svn: 373874
2019-10-07 02:45:12 +00:00
Richard Smith 344df110e5 Implements CWG 1601 in [over.ics.rank/4.2]
Summary:
The overload resolution for enums with a fixed underlying type has changed in the C++14 standard. This patch implements the new rule.

Patch by Mark de Wever!

Reviewers: rsmith

Reviewed By: rsmith

Subscribers: cfe-commits

Tags: #clang

Differential Revision: https://reviews.llvm.org/D65695

llvm-svn: 373866
2019-10-06 18:50:40 +00:00
Richard Smith 1e9c0cecab [Sema] Avoids an assertion failure when an invalid conversion declaration is used
Summary:
When using a user-defined conversion function template with a deduced return type the compiler gives a set of warnings:
```
bug.cc:252:44: error: cannot specify any part of a return type in the declaration of a conversion function; use an alias template to declare a conversion to 'auto (Ts &&...) const'
  template <typename... Ts> operator auto()(Ts &&... xs) const;
                                           ^~~~~~~~~~~~~~~~~~~
bug.cc:252:29: error: conversion function cannot convert to a function type
  template <typename... Ts> operator auto()(Ts &&... xs) const;
                            ^
error: pointer to function type cannot have 'const' qualifier
```
after which it triggers an assertion failure. It seems the last error is incorrect and doesn't have any location information. This patch stops the compilation after the second warning.

Fixes bug 31422.

Patch by Mark de Wever!

Reviewers: rsmith

Reviewed By: rsmith

Subscribers: bbannier, cfe-commits

Tags: #clang

Differential Revision: https://reviews.llvm.org/D64820

llvm-svn: 373862
2019-10-06 18:40:59 +00:00
Simon Pilgrim 43bbca9228 RewriteObjC - silence static analyzer getAs<> null dereference warnings. NFCI.
The static analyzer is warning about potential null dereferences, but we should be able to use castAs<> directly and if not assert will fire for us.

llvm-svn: 373829
2019-10-05 13:42:14 +00:00
David Bolvansky 83b81c1f6e [Diagnostics] Highlight expr's source range for -Wbool-operation
Warning message looks better; and GCC adds it too.

llvm-svn: 373828
2019-10-05 13:28:15 +00:00
Simon Pilgrim f4cc3b3e10 SemaTemplate - silence static analyzer getAs<> null dereference warnings. NFCI.
The static analyzer is warning about potential null dereferences, but we should be able to use castAs<> directly and if not assert will fire for us.

llvm-svn: 373827
2019-10-05 13:21:08 +00:00
Simon Pilgrim 22b6873195 TreeTransform - silence static analyzer getAs<> null dereference warnings. NFCI.
The static analyzer is warning about potential null dereferences, but we should be able to use castAs<> directly and if not assert will fire for us.

llvm-svn: 373826
2019-10-05 13:20:59 +00:00
Simon Pilgrim 0e82722f9a Remove redundant !HasDependentValue check. NFCI.
Fixes cppcheck warning.

llvm-svn: 373825
2019-10-05 13:20:51 +00:00
Simon Pilgrim 20692a0d3d SemaStmt - silence static analyzer getAs<> null dereference warnings. NFCI.
The static analyzer is warning about potential null dereferences, but we should be able to use castAs<> directly and if not assert will fire for us.

llvm-svn: 373824
2019-10-05 13:20:42 +00:00
Paul Hoad 375a84bb75 [clang-format] SpacesInSquareBrackets should affect lambdas with parameters too
Summary:
This patch makes the `SpacesInSquareBrackets` setting also apply to C++ lambdas with parameters.

Looking through the revision history, it appears support for only array brackets was added, and lambda brackets were ignored. Therefore, I am inclined to think it was simply an omission, rather than a deliberate choice.

See https://bugs.llvm.org/show_bug.cgi?id=17887 and https://reviews.llvm.org/D4944.

Reviewers: MyDeveloperDay, reuk, owenpan

Reviewed By: MyDeveloperDay

Subscribers: cfe-commits

Patch by: mitchell-stellar

Tags: #clang-format, #clang

Differential Revision: https://reviews.llvm.org/D68473

llvm-svn: 373821
2019-10-05 09:55:23 +00:00
David Bolvansky 559265c8da [Diagnostics] Use Expr::isKnownToHaveBooleanValue() to check bitwise negation of bool in languages without a bool type
Thanks for this advice, Richard Trieu!

llvm-svn: 373817
2019-10-05 08:02:11 +00:00
Yuanfang Chen 442ddffe13 [clang] fix a typo from r372531
Reviewers: xbolva00

Subscribers: cfe-commits

Tags: #clang

Differential Revision: https://reviews.llvm.org/D68482

llvm-svn: 373792
2019-10-04 21:37:20 +00:00
Erik Pilkington f7766b1ed4 [Sema] Split out -Wformat-type-confusion from -Wformat-pedantic
The warnings now in -Wformat-type-confusion don't align with how we interpret
'pedantic' in clang, and don't belong in -pedantic.

Differential revision: https://reviews.llvm.org/D67775

llvm-svn: 373774
2019-10-04 19:20:27 +00:00
Alexey Bataev 1c9e1731b0 [OPENMP50]Suppport for multiple vendors in the same vendor context
selector.

According to OpenMP 5.0, multiple vendors could be specified in the
vendor context selector via ',' as a separator.

llvm-svn: 373756
2019-10-04 15:58:45 +00:00
Simon Pilgrim 237d0af7a8 SemaDeclAttr - silence static analyzer getAs<> null dereference warnings. NFCI.
The static analyzer is warning about potential null dereferences, but in these cases we should be able to use castAs<> directly and if not assert will fire for us.

llvm-svn: 373753
2019-10-04 15:02:46 +00:00
Simon Pilgrim 0abbb154ca CGBlocks - silence static analyzer getAs<> null dereference warnings. NFCI.
The static analyzer is warning about potential null dereferences, but in these cases we should be able to use castAs<> directly and if not assert will fire for us.

llvm-svn: 373752
2019-10-04 15:01:54 +00:00
Paul Hoad cccf5aa081 [clang-format] C++11 braced lists should respect the SpacesInParentheses setting
Summary:
According to the clang-format documentation, "Fundamentally, C++11 braced lists are formatted exactly like function calls would be formatted in their place. If the braced list follows a name (e.g. a type or variable name), clang-format formats as if the `{}` were the parentheses of a function call with that name."

This patch furthers the treatment of C++11 braced list braces as parentheses by respecting the `SpacesInParentheses` setting.

Reviewers: MyDeveloperDay, reuk, owenpan

Reviewed By: MyDeveloperDay

Subscribers: cfe-commits

Tags: #clang-format, #clang

Patch By: mitchell-stellar

Differential Revision: https://reviews.llvm.org/D68415

llvm-svn: 373751
2019-10-04 14:25:20 +00:00
Paul Hoad ba12cec21f [clang-format] [PR43531] clang-format damages "alternative representations" for operators
Summary:
https://bugs.llvm.org/show_bug.cgi?id=43531

Fix for clang-format incorrectly handles "alternative operators" as described by https://en.cppreference.com/w/cpp/language/operator_alternative

compl = ~
not = !

these are unary operators, and clang-format will remove the space between them and a numeric constant

this incorrectly formats the following code

```
int a compl 5;
int a not 5;
```

into:

```
int a compl5;
int a not5;
```

The code adds FIXME unit tests for "alternative token" representations for {} [] and # as defined by the same link, which would require a more detailed change to the FormatTokenLexer

Reviewers: klimek, reuk, owenpan, mitchell-stellar, STL_MSFT

Reviewed By: mitchell-stellar

Subscribers: cfe-commits

Tags: #clang-format, #clang-tools-extra, #clang

Differential Revision: https://reviews.llvm.org/D68332

llvm-svn: 373750
2019-10-04 14:16:59 +00:00
Haojian Wu 5d862c042b [clang-rename] Fix a crash when renaming a class without definition.
Reviewers: sammccall

Subscribers: cfe-commits

Tags: #clang

Differential Revision: https://reviews.llvm.org/D68459

llvm-svn: 373748
2019-10-04 14:09:31 +00:00
Paul Hoad a37a6dcd04 [clang-format] [PR42417] clang-format inserts a space after '->' for operator->() overloading
Summary:
https://bugs.llvm.org/show_bug.cgi?id=42417

This revision removes the extra space between the opertor-> and the parens ()

```
class Bug {
    auto operator-> () -> int*;
    auto operator++(int) -> int;
};
```

Reviewers: klimek, owenpan, byoungyoung, mitchell-stellar

Reviewed By: mitchell-stellar

Subscribers: cfe-commits

Tags: #clang-format, #clang

Differential Revision: https://reviews.llvm.org/D68242

llvm-svn: 373746
2019-10-04 13:24:15 +00:00
Cullen Rhodes eae7ed479b [Driver] NFC: Remove duplicate call to getLibGccType
Reviewed By: saugustine

Differential Revision: https://reviews.llvm.org/D68380

llvm-svn: 373712
2019-10-04 08:26:37 +00:00
Raphael Isemann 51e0bbb02d [lldb][modern-type-lookup] No longer import temporary declarations into the persistent AST
Summary:
As we figured out in D67803, importing declarations from a temporary ASTContext that were originally from a persistent ASTContext
causes a bunch of duplicated declarations where we end up having declarations in the target AST that have no associated ASTImporter that
can complete them.

I haven't figured out how/if we can solve this in the current way we do things in LLDB, but in the modern-type-lookup this is solvable
as we have a saner architecture with the ExternalASTMerger. As we can (hopefully) make modern-type-lookup the default mode in the future,
I would say we try fixing this issue here. As we don't use the hack that was reinstated in D67803 during modern-type-lookup, the test case for this
is essentially just printing any kind of container in `std::` as we would otherwise run into the issue that required a hack like D67803.

What this patch is doing in essence is that instead of importing a declaration from a temporary ASTContext, we instead check if the
declaration originally came from a persistent ASTContext (e.g. the debug information) and we directly import from there. The ExternalASTMerger
is already connected with ASTImporters to these different sources, so this patch is essentially just two parts:
1. Mark our temporary ASTContext/ImporterSource as temporary when we import from the expression AST.
2. If the ExternalASTMerger sees we import from the expression AST, instead of trying to import these temporary declarations, check if we
can instead import from the persistent ASTContext that is already connected. This ensures that all records from the persistent source actually
come from the persistent source and are minimally imported in a way that allows them to be completed later on in the target AST.

The next step is to run the ASTImporter for these temporary expressions with the MinimalImport mode disabled, but that's a follow up patch.

This patch fixes most test failures with modern-type-lookup enabled by default (down to 73 failing tests, which includes the 22 import-std-module tests
which need special treatment).

Reviewers: shafik, martong

Reviewed By: martong

Subscribers: aprantl, rnkovacs, christof, abidh, JDevlieghere, lldb-commits

Tags: #lldb

Differential Revision: https://reviews.llvm.org/D68326

llvm-svn: 373711
2019-10-04 08:26:17 +00:00
Ilya Biryukov 8613e90ba7 [CodeComplete] Ensure object is the same in compareOverloads()
Summary:
This fixes a regression that led to size() not being available in clangd
when completing 'deque().^' and using libc++.

Reviewers: sammccall

Reviewed By: sammccall

Subscribers: jkorous, arphaman, kadircet, usaxena95, cfe-commits

Tags: #clang

Differential Revision: https://reviews.llvm.org/D68335

llvm-svn: 373710
2019-10-04 08:10:27 +00:00
Paul Hoad 4c05658354 [clang-format] [PR43338] C# clang format has space issues betweern C# only keywords
Summary:
When formatting C# there can be issues with a lack of spaces between `using (` , `foreach (` and generic types

The C# code

```
public class Foo
{
    Dictionary<string,string> foo;
}

```
will be formatted as

```
public class Foo
{
    Dictionary<string, string>foo;
                           ^^^^^   missing a space
}
```

This revision also reverts some of {D66662} in order to make this cleaner and resolve an issues seen by @owenpan that the formatting didn't add a space when not in a code block

This also transforms C# foreach commands to be seen as tok::kw_for commands (to ensure foreach gets the same Brace Wrapping behavior as for without littering the code with `if(Style.isCSharp())`

Reviewers: owenpan, klimek, russellmcc, mitchell-stellar

Reviewed By: mitchell-stellar

Subscribers: cfe-commits

Tags: #clang, #clang-format

Differential Revision: https://reviews.llvm.org/D67660

llvm-svn: 373709
2019-10-04 08:10:22 +00:00
Paul Hoad a2f963bb61 [clang-format] [PR43333] Fix C# breaking before function name when using Attributes
Summary:
This is  a fix for https://bugs.llvm.org/show_bug.cgi?id=43333

This comes with 3 main parts

  - C# attributes cause function names on a new line even when AlwaysBreakAfterReturnType is set to None
  - Add AlwaysBreakAfterReturnType  to None by default in the Microsoft style,
  - C# unit tests are not using Microsoft style (which we created to define the default C# style to match a vanilla C# project).

Reviewers: owenpan, klimek, russellmcc, mitchell-stellar

Reviewed By: mitchell-stellar

Subscribers: cfe-commits

Tags: #clang-tools-extra, #clang, #clang-format

Differential Revision: https://reviews.llvm.org/D67629

llvm-svn: 373707
2019-10-04 07:56:49 +00:00
Richard Smith 772e266fbf Properly handle instantiation-dependent array bounds.
We previously failed to treat an array with an instantiation-dependent
but not value-dependent bound as being an instantiation-dependent type.
We now track the array bound expression as part of a constant array type
if it's an instantiation-dependent expression.

llvm-svn: 373685
2019-10-04 01:25:59 +00:00
Simon Pilgrim 9588ae772d ASTContext - silence static analyzer getAs<> null dereference warnings. NFCI.
The static analyzer is warning about potential null dereferences, but we should be able to use castAs<> directly and if not assert will fire for us.

We can also remove a number of explicit asserts and reply on the internal asserts in castAs<>

llvm-svn: 373667
2019-10-03 21:47:42 +00:00
Alexey Bataev 0364c760ad [OPENMP50]Codegen support for scores in context selectors.
If the context selector has associated score and several contexts
selectors matches current context, the function with the highest score
must be selected.

llvm-svn: 373661
2019-10-03 20:49:48 +00:00
Yaxun Liu 99d0d3ae90 [HIP] Use option -nogpulib to disable linking device lib
Differential Revision: https://reviews.llvm.org/D68300

llvm-svn: 373649
2019-10-03 18:59:56 +00:00
Richard Smith 5d96b4ce28 Check for qualified function types after substituting into the operand
of 'typeid'.

This is a rare place where it's valid for a function type to be
substituted but not valid for a qualified function type to be
substituted, so needs a special check.

llvm-svn: 373648
2019-10-03 18:55:23 +00:00
Paul Hoad fb13e65acf [clang-format] Add ability to wrap braces after multi-line control statements
Summary:
Change the BraceWrappingFlags' AfterControlStatement from a bool to an enum with three values:

* "Never": This is the default, and does not do any brace wrapping after control statements.
* "MultiLine": This only wraps braces after multi-line control statements (this really only happens when a ColumnLimit is specified).
* "Always": This always wraps braces after control statements.

The first and last options are backwards-compatible with "false" and "true", respectively.

The new "MultiLine" option is useful for when a wrapped control statement's indentation matches the subsequent block's indentation. It makes it easier to see at a glance where the control statement ends and where the block's code begins. For example:

```
if (
  foo
  && bar )
{
  baz();
}
```

vs.

```
if (
  foo
  && bar ) {
  baz();
}
```

Short control statements (1 line) do not wrap the brace to the next line, e.g.

```
if (foo) {
  bar();
} else {
  baz();
}
```

Reviewers: sammccall, owenpan, reuk, MyDeveloperDay, klimek

Reviewed By: MyDeveloperDay

Subscribers: MyDeveloperDay, cfe-commits

Patch By: mitchell-stellar

Tags: #clang-format, #clang, #clang-tools-extra

Differential Revision: https://reviews.llvm.org/D68296

llvm-svn: 373647
2019-10-03 18:42:31 +00:00
Richard Smith 8d2eaf9239 PR43547: substitute into the type of a non-type template parameter if
it's instantiation-dependent, even if it's not dependent.

There might be a SFINAE check in the parameter type.

llvm-svn: 373643
2019-10-03 18:24:40 +00:00
Michael Liao 691e44c146 [HIP] Enable specifying different default gpu arch for HIP/CUDA.
Reviewers: tra, yaxunl

Subscribers: cfe-commits

Tags: #clang

Differential Revision: https://reviews.llvm.org/D68394

llvm-svn: 373634
2019-10-03 17:49:20 +00:00
Simon Pilgrim 86976c91cf DeclBase/DeclCXX/DeclTemplate - silence static analyzer getAs<> null dereference warnings. NFCI.
The static analyzer is warning about potential null dereferences, but in these cases we should be able to use castAs<> directly and if not assert will fire for us.

llvm-svn: 373626
2019-10-03 16:58:01 +00:00
Alexey Bataev 36724b78e8 [OPENMP]Fix emission of the declare target variables in device mode.
Declare target variables must be emitted in device mode, target triples
can be empty in this case.

llvm-svn: 373624
2019-10-03 16:46:49 +00:00
Alexey Bataev ba643691dd [OPENMP]Improve diagnostics for not found declare target entries.
We can point to the target region + emit parent functions names/real var
names if they were not found in host module during device codegen.

llvm-svn: 373620
2019-10-03 16:20:34 +00:00
David Bolvansky b4ee523ffc [Diagnostics] Bitwise negation of a boolean expr always evaluates to true; warn with -Wbool-operation
Requested here:
http://lists.llvm.org/pipermail/cfe-dev/2019-October/063452.html

llvm-svn: 373614
2019-10-03 15:17:59 +00:00
Simon Pilgrim 1fae74480b Fix MSVC "result of 32-bit shift implicitly converted to 64 bits" warning. NFCI.
llvm-svn: 373613
2019-10-03 15:10:47 +00:00