Summary:
Windows does not allow globals to be initialised to point to globals in
another DLL. Exported globals may be referenced only from code. Work
around this by creating an initialiser that runs in early library
initialisation and sets the isa pointer.
Reviewers: rjmccall
Reviewed By: rjmccall
Subscribers: cfe-commits
Differential Revision: https://reviews.llvm.org/D50436
llvm-svn: 339317
This addresses a FIXME that has existed since before clang supported the builtin.
This time with only reviewed changes.
Differential Revision: https://reviews.llvm.org/D50471
llvm-svn: 339295
LLVM triple normalization is handling "unknown" and empty components
differently; for example given "x86_64-unknown-linux-gnu" and
"x86_64-linux-gnu" which should be equivalent, triple normalization
returns "x86_64-unknown-linux-gnu" and "x86_64--linux-gnu". autoconf's
config.sub returns "x86_64-unknown-linux-gnu" for both
"x86_64-linux-gnu" and "x86_64-unknown-linux-gnu". This changes the
triple normalization to behave the same way, replacing empty triple
components with "unknown".
This addresses PR37129.
Differential Revision: https://reviews.llvm.org/D50219
llvm-svn: 339294
This addresses a FIXME that has existed since before clang supported the builtin.
Differential Revision: https://reviews.llvm.org/D50471
llvm-svn: 339287
Summary:
These macros are defined in the C11 standard and can be defined based on
the __*_HAS_DENORM__ default macros.
Reviewers: bruno, rsmith, doug.gregor
Subscribers: llvm-commits, enh, srhines
Differential Revision: https://reviews.llvm.org/D37302
llvm-svn: 339284
gcc defines an intrinsic called __builtin_clrsb which counts the number of extra sign bits on a number. This is equivalent to counting the number of leading zeros on a positive number or the number of leading ones on a negative number and subtracting one from the result. Since we can't count leading ones we need to invert negative numbers to count zeros.
This patch will cause the builtin to be expanded inline while gcc uses a call to a function like clrsbdi2 that is implemented in libgcc. But this is similar to what we already do for popcnt. And I don't think compiler-rt supports clrsbdi2.
Differential Revision: https://reviews.llvm.org/D50168
llvm-svn: 339282
r330571 added a new FrontendTimesIsEnabled variable and replaced many usages of llvm::TimePassesIsEnabled. Including the place that set llvm::TimePassesIsEnabled for -ftime-report. The effect of this is that -ftime-report now only contains the timers specifically referenced in CodeGenAction.cpp and none of the timers in the backend.
This commit adds back the assignment, but otherwise leaves everything else unchanged.
llvm-svn: 339281
Fast FMAF is not a sufficient condition to enable denormals.
Before VI, enabling denormals caused F32 instructions to
run at F64 speeds.
llvm-svn: 339278
As suggested by @theraven on PR38210, this patch fixes the gcc -Woverloaded-virtual warnings by renaming the extra CGObjCGNU::GetSelector method to CGObjCGNU::GetTypedSelector
Differential Revision: https://reviews.llvm.org/D50448
llvm-svn: 339264
Summary:
When checking a class or function the described class or function template
is checked too.
Split StructuralEquivalenceContext::Finish into multiple functions.
Improved test with symmetric check, added new tests.
Reviewers: martong, a.sidorin, a_sidorin, bruno
Reviewed By: martong, a.sidorin
Subscribers: rnkovacs, cfe-commits
Tags: #clang
Differential Revision: https://reviews.llvm.org/D49223
llvm-svn: 339256
This patch fixed an issue where the dynamic type of pointer/reference
object was known by the analyzer, but wasn't obtained in the checker,
which resulted in false negatives. This should also increase reliability
of the checker, as derefencing is always done now according to the
dynamic type (even if that happens to be the same as the static type).
Special thanks to Artem Degrachev for setting me on the right track.
Differential Revision: https://reviews.llvm.org/D49199
llvm-svn: 339240
As of now, all constructor calls are ignored that are being called
by a constructor. The point of this was not to analyze the fields
of an object, so an uninitialized field wouldn't be reported
multiple times.
This however introduced false negatives when the two constructors
were in no relation to one another -- see the test file for a neat
example for this with singletons. This patch aims so fix this issue.
Differential Revision: https://reviews.llvm.org/D48436
llvm-svn: 339237
Summary:
At equality check of fields without name the index of fields is compared.
At determining the index of a field all fields of the parent context
should be loaded from external source to find the field at all.
Reviewers: a.sidorin, a_sidorin, r.stahl
Reviewed By: a.sidorin
Subscribers: martong, cfe-commits
Differential Revision: https://reviews.llvm.org/D49796
llvm-svn: 339226
Summary:
The loop-widening code processes c++ methods looking for `this` pointers. In
the case of static methods (which do not have `this` pointers), an assertion
was triggering. This patch avoids trying to process `this` pointers for
static methods, and thus avoids triggering the assertion .
Reviewers: dcoughlin, george.karpenkov, NoQ
Reviewed By: NoQ
Subscribers: NoQ, xazax.hun, szepet, a.sidorin, mikhail.ramalho, cfe-commits
Differential Revision: https://reviews.llvm.org/D50408
llvm-svn: 339201
First and subsequent iteration steps are similar, capture this similarity.
Reviewers: bruno, benlangmuir
Reviewed By: bruno
Subscribers: dexonsmith, cfe-commits
Differential Revision: https://reviews.llvm.org/D50118
llvm-svn: 339199
The dependent auto was getting stripped away while rebuilding the template
parameter type, so substitute it in.
rdar://41852459
Differential revision: https://reviews.llvm.org/D50088
llvm-svn: 339198
Compiling the following causes clang to crash
```
char *cmp(__attribute__((address_space(1))) char *x, __attribute__((address_space(2))) char *y) {
return x < y ? x : y;
}
```
with the message: "wrong cast for pointers in different address
spaces(must be an address space cast)!"
This is because during IR emission, the source and dest type for a
bitcast should not have differing address spaces.
This fix prints an error since the code shouldn't compile in the first place.
Differential Revision: https://reviews.llvm.org/D50278
llvm-svn: 339167
Entries with only a filename prevent us from building a file system tree and
cause the assertion
> Assertion failed: (NewParentE && "Parent entry must exist"), function uniqueOverlayTree, file clang/lib/Basic/VirtualFileSystem.cpp, line 1303.
Entries with a relative path are simply not discoverable during header search.
rdar://problem/28990865
Reviewers: bruno, benlangmuir
Reviewed By: bruno
Subscribers: dexonsmith, cfe-commits
Differential Revision: https://reviews.llvm.org/D49518
llvm-svn: 339164
This flag is deprecated. The preferred way to select the lld
flavor is by calling it by one of its aliases.
Differential Revision: https://reviews.llvm.org/D50395
llvm-svn: 339163
declare target.
According to OpenMP 5.0, variables captured in lambdas in declare target
regions must be considered as implicitly declare target.
llvm-svn: 339152
Always emit alloca in entry block for enqueue_kernel builtin.
Ensures the statically sized alloca is not converted to DYNAMIC_STACKALLOC
later because it is not in the entry block.
llvm-svn: 339150
Even for a checker being in alpha, some reports about pointees held so little
value to the user that it's safer to disable pointer/reference chasing for now.
It can be enabled with a new flag, in which case checker should function as it
has always been. This can be set with `CheckPointeeInitialization`.
Differential Revision: https://reviews.llvm.org/D49438
llvm-svn: 339135
These were intended to allow non-fragile and fragile ABI code to be
mixed, as long as the fragile classes were higher up the hierarchy than
the non-fragile ones. Unfortunately:
- No one actually wants to do this.
- Recent versions of Linux's run-time linker break it.
llvm-svn: 339128
Summary:
This fixes a bug in clang-format where the last line's penalty is not
taken into account when its ending is broken. Usually the last line's penalty
is handled by addNextStateToQueue, but in cases where the trailing `*/` is put
on a newline, the contents of the last line have to be considered for penalizing.
Reviewers: mprobst
Reviewed By: mprobst
Subscribers: cfe-commits
Differential Revision: https://reviews.llvm.org/D50378
llvm-svn: 339123
Some checkers require ASTContext. Having it in the constructor saves a
lot of boilerplate of having to pass it around.
Differential Revision: https://reviews.llvm.org/D50111
llvm-svn: 339079
For InnerPointerChecker to function properly, both the checker itself
and parts of MallocChecker that handle relevant use-after-free problems
need to be turned on. So far, the latter part has been developed within
MallocChecker's NewDelete sub-checker, often causing warnings to appear
under that name. This patch defines a new CheckKind within MallocChecker
for the inner pointer checking functionality, so that the correct name
is displayed in warnings and in the ExplodedGraph.
Tested on clang-tidy.
Differential Review: https://reviews.llvm.org/D50211
llvm-svn: 339067
Summary:
InMemoryFileSystem::status behaves differently than
RealFileSystem::status. The Name contained in the Status returned by
RealFileSystem::status will be the path as requested by the caller,
whereas InMemoryFileSystem::status returns the normalized path.
For example, when requested the status for "../src/first.h",
RealFileSystem returns a Status with "../src/first.h" as the Name.
InMemoryFileSystem returns "/absolute/path/to/src/first.h".
The reason for this change is that I want to make a unit test in the
clangd testsuite (where we use an InMemoryFileSystem) to reproduce a
bug I get with the clangd program (where a RealFileSystem is used).
This difference in behavior "hides" the bug in the unit test version.
An indirect impact of this change is that a -Wnonportable-include-path
warning is now emitted in test PCH/case-insensitive-include.c. This is
because the real path of the included file (with the wrong case) was not
available previously, whereas it is now.
Reviewers: malaperle, ilya-biryukov, bkramer
Reviewed By: ilya-biryukov
Subscribers: eric_niebler, malaperle, omtcyfz, hokein, bkramer, ilya-biryukov, ioeric, cfe-commits
Differential Revision: https://reviews.llvm.org/D48903
llvm-svn: 339063
DeclarationNameTable currently hold 3 "void *" to
FoldingSet<CXXSpecialName>, FoldingSet<CXXLiteralOperatorIdName>
and FoldingSet<CXXDeductionGuideNameExtra>.
CXXSpecialName, CXXLiteralOperatorIdName and
CXXDeductionGuideNameExtra are private classes holding extra
information about a "special" declaration name and are in
AST/DeclarationName.cpp. The original intent seems to have
been to keep these classes private and only expose
DeclarationNameExtra and DeclarationName (the code dates from
2008 and has not been significantly changed since).
However this make the code less straightforward than necessary
because of the need to have "void *" in DeclarationNameTable
(with 1 of 3 comments wrong) and to manually allocate/deallocate
the FoldingSets.
Moreover removing the extra indirections reduce the run-time of
an fsyntax-only on all of Boost by 2.3% which is not totally
unexpected given how frequently this data structure is used
(especially for C++).
A concern raised by erichkeane during the review was that
including Type.h would increase the compile time unreasonably.
However test builds (both clean and incremental) showed that
this patch did not result in any compile time increase.
Reviewed By: erichkeane
Differential Revision: https://reviews.llvm.org/D50261
llvm-svn: 339030
This patch proposes an abstract type that represents fixed point numbers, similar to APInt or APSInt that was discussed in https://reviews.llvm.org/D48456#inline-425585. This type holds a value, scale, and saturation and is meant to perform intermediate calculations on constant fixed point values.
Currently this class is used as a way for handling the conversions between fixed point numbers with different sizes and radixes. For example, if I'm casting from a signed _Accum to a saturated unsigned short _Accum, I will need to check the value of the signed _Accum to see if it fits into the short _Accum which involves getting and comparing against the max/min values of the short _Accum. The FixedPointNumber class currently handles the radix shifting and extension when converting to a signed _Accum.
Differential Revision: https://reviews.llvm.org/D48661
llvm-svn: 339028
- Print negative numbers correctly
- Handle APInts of different sizes
- Add formal unit tests for FixedPointValueToString
- Add tests for checking correct printing when padding is set
- Restrict to printing in radix 10 since that's all we need for now
Differential Revision: https://reviews.llvm.org/D49945
llvm-svn: 339026
This mirrors what is done for Decls and Stmts in the -print-stats
output, ie instead of printing "57426 LValueReference types"
we print "57426 LValueReference types, 40 each (2297040 bytes)".
llvm-svn: 339024
Summary: The previous code which avoided infinite recursion (because of reparsing declarations in function parameter lists) contained SourceRange dependent code which had some problems when parameter types were coming from macros. The new solution is not using macros and therefore much safer. A couple of importer problems are fixed in redis and tmux by this fix. Various unittests are included.
Reviewers: a.sidorin, r.stahl, a_sidorin
Reviewed By: a_sidorin
Subscribers: cfe-commits, dkrupp, balazske, martong
Differential Revision: https://reviews.llvm.org/D49792
Patch by Zoltan Gera!
llvm-svn: 339018
Summary:
The code defines __FLOAT_H and then includes the next <float.h>, which is
guarded on __FLOAT_H so it gets skipped entirely. This commit uses the header
guard __CLANG_FLOAT_H, like other headers (such as limits.h) do.
Reviewers: jfb
Subscribers: dexonsmith, cfe-commits
Differential Revision: https://reviews.llvm.org/D50276
llvm-svn: 339016
Generate DILabel metadata and call llvm.dbg.label after label
statement to associate the metadata with the label.
After fixing PR37395.
Differential Revision: https://reviews.llvm.org/D45045
llvm-svn: 338989
