Clang's <stddef.h> provides definitions for the C standard library
types size_t, ptrdiff_t, and wchar_t. However, the system's C standard
library headers tend to provide the same typedefs, and the two
generally avoid each other using the macros
_SIZE_T/_PTRDIFF_T/_WCHAR_T. With modules, however, we need to see
*all* of the places where these types are defined, so provide the
typedefs (ignoring the macros) when modules are enabled.
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@177686 91177308-0d34-0410-b5e6-96231b3b80d8
Switching the DIFile field in DISubprogram to refer to the raw
filename/directory pair instead of a DIFile.
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@177676 91177308-0d34-0410-b5e6-96231b3b80d8
We now put the Clang module cache in
<system-temp-directory>/org.llvm.clang/ModuleCache. Perhaps some day
there will be other caches under <system-temp-directory>/org.llvm.clang>.
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@177671 91177308-0d34-0410-b5e6-96231b3b80d8
is issused for on overriding 'readwrite'
property which is not auto-synthesized.
Buttom line is that if hueristics determine
that there will be a user implemented setter,
no warning will be issued. // rdar://13388503
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@177662 91177308-0d34-0410-b5e6-96231b3b80d8
Summary:
1. When splitting one-line block comment, use indentation and *s.
2. Remove trailing whitespace from all lines of a comment, not only the ones being splitted.
3. Add backslashes for all lines if a comment is used insed a preprocessor directive.
Reviewers: djasper
Reviewed By: djasper
CC: cfe-commits, klimek
Differential Revision: http://llvm-reviews.chandlerc.com/D557
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@177635 91177308-0d34-0410-b5e6-96231b3b80d8
This isn't necessary & with the next change to LLVM the DW_TAG_file_type entry
won't be emitted at all - only the raw filename/directory pair, so match on
that directly instead.
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@177609 91177308-0d34-0410-b5e6-96231b3b80d8
* libclang_rt-san-* is sanitizer_common, and is linked in only if no other
sanitizer runtime is present.
* libclang_rt-ubsan-* is the piece of the runtime which doesn't depend on
a C++ ABI library, and is always linked in.
* libclang_rt-ubsan_cxx-* is the piece of the runtime which depends on a
C++ ABI library, and is only linked in when linking a C++ binary.
This change also switches us to using -whole-archive for the ubsan runtime
(which is made possible by the above split), and switches us to only linking
the sanitizer runtime into the main binary and not into DSOs (which is made
possible by using -whole-archive).
The motivation for this is to only link a single copy of sanitizer_common
into any binary. This is becoming important now because we want to share
more state between multiple sanitizers in the same process (for instance,
we want a single shared output mutex).
The Darwin ubsan runtime is unchanged; because we use a DSO there, we don't
need this complexity.
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@177605 91177308-0d34-0410-b5e6-96231b3b80d8
* Clarify what MacroInfo::isBuiltinMacro means, as it really means something
more like "isMagicalMacro" or "requiresProcessingBeforeExpansion" -- the
macros defined in "<built-in>" are not considered built-in by this function;
* Escape __LINE__ as \__LINE__ in Doxygen comments so that the underscores
don't get replaced by *bold* output;
* Turn comments in MacroInfo.cpp into non-Doxygen comments, so that they
don't result in duplicated/badly formatted Doxygen output;
* Clean up a bunch of \brief formatting, and add a \file comment for
MacroInfo.h.
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@177581 91177308-0d34-0410-b5e6-96231b3b80d8
This fixes some mistaken condition logic in RegionStore that caused
global variables to be invalidated when /any/ region was invalidated,
rather than only as part of opaque function calls. This was only
being used by CStringChecker, and so users will now see that strcpy()
and friends do not invalidate global variables.
Also, add a test case we don't handle properly: explicitly-assigned
global variables aren't being invalidated by opaque calls. This is
being tracked by <rdar://problem/13464044>.
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@177572 91177308-0d34-0410-b5e6-96231b3b80d8
Due to improper modelling of copy constructors (specifically, their
const reference arguments), we were producing spurious leak warnings
for allocated memory stored in structs. In order to silence this, we
decided to consider storing into a struct to be the same as escaping.
However, the previous commit has fixed this issue and we can now properly
distinguish leaked memory that happens to be in a struct from a buffer
that escapes within a struct wrapper.
Originally applied in r161511, reverted in r174468.
<rdar://problem/12945937>
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@177571 91177308-0d34-0410-b5e6-96231b3b80d8
In this case, the value of 'x' may be changed after the call to indirectAccess:
struct Wrapper {
int *ptr;
};
void indirectAccess(const Wrapper &w);
void test() {
int x = 42;
Wrapper w = { x };
clang_analyzer_eval(x == 42); // TRUE
indirectAccess(w);
clang_analyzer_eval(x == 42); // UNKNOWN
}
This is important for modelling return-by-value objects in C++, to show
that the contents of the struct are escaping in the return copy-constructor.
<rdar://problem/13239826>
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@177570 91177308-0d34-0410-b5e6-96231b3b80d8
This is a bit of old code trying to deal with the fact that functions that
take pointers often use them to access an entire array via pointer
arithmetic. However, RegionStore already conservatively assumes you can use
pointer arithmetic to access any part of a region.
Some day we may want to go back to handling this specifically for calls,
but we can do that in the future.
No functionality change.
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@177569 91177308-0d34-0410-b5e6-96231b3b80d8
The #line directive is mostly for backend testing (keeping these files matching
should simplify maintenance somewhat) though the corresponding backend test
improvement/update doesn't verify the file information directly just yet.
Coming in a later iteration.
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@177559 91177308-0d34-0410-b5e6-96231b3b80d8
I am not sure how much we can improve for
when a randon ObjC keyword is thrown into the
ivar decl. block. // rdar://6854840
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@177553 91177308-0d34-0410-b5e6-96231b3b80d8
For constructors/desctructors that return 'this', if there exists a callsite
that returns 'this' and is immediately before the return instruction, make
sure we are using the return value from the callsite.
We don't need to keep 'this' alive through the callsite. It also enables
optimizations in the backend, such as tail call optimization.
Updated from r177211.
rdar://12818789
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@177541 91177308-0d34-0410-b5e6-96231b3b80d8
clang-format can't do anything useful, so it should leave the remainder
of the line unchanged, but it should not assert/segfault.
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@177530 91177308-0d34-0410-b5e6-96231b3b80d8
Before (when only reformatting "int b"):
int a; // comment
// comment
int b;
After:
int a; // comment
// comment
int b;
This also fixes llvm.org/PR15433.
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@177524 91177308-0d34-0410-b5e6-96231b3b80d8
This seems to be generally more desired.
Before:
if (aaaaaaaa &&
bbbbbbbb >
cccccccc) {}
After:
if (aaaaaaaa &&
bbbbbbbb >
cccccccc) {}
Also: Some formatting cleanup on clang-format's files.
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@177514 91177308-0d34-0410-b5e6-96231b3b80d8
We were checking "Arch == llvm::Triple::x86_64 || Arch
== llvm::Triple::x86_64", but the rhs should actually check for
powerpc64.
Found while experimenting with a potential new Clang warning.
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@177496 91177308-0d34-0410-b5e6-96231b3b80d8
Douglas Gregor
Jordan Rose
David Blaikie
Fariborz Jahanian
Aaron Ballman
Benjamin Kramer
Alexander Kornienko
Alexander Potapenko
Bob Wilson
John McCall
Manman Ren
Richard Smith
Reid Kleckner
James Dennett
Sean Silva
Daniel Jasper
Hans Wennborg