Summary:
When using #line directives, FileManager::getFile() will return a nil
entry. This triggers an assert in translateFileLineCol().
This patch handles nil FileEntry instances by emitting a note that the
location could not be translated back to a SourceLocation. I don't
really like this solution, but we are translating presumed locations,
so some information has already been lost.
Reviewers: rsmith
Subscribers: cfe-commits
Differential Revision: http://reviews.llvm.org/D3625
llvm-svn: 208315
A template declaration of a template name can be null in case we have a dependent name or a set of function templates.
Hence use dyn_cast_or_null instead of dyn_cast. Also improve the diagnostic emitted in this case.
llvm-svn: 208313
It was set by default on Darwin in r198655. The same usability issues
with DTrace and LLDB apply to FreeBSD, so set it by default there too.
rdar://problem/15758808
http://llvm.org/pr19676
Differential Revision: http://reviews.llvm.org/D3448
llvm-svn: 208310
Use this to fix the leak of DeserializedDeclsDumper and DeserializedDeclsChecker
in FrontendAction (found by LSan), PR19560.
The "delete this" bool is necessary because both PCHGenerator and ASTUnit
return the same object from both getDeserializationListener() and
getASTMutationListener(), so ASTReader can't just have a unique_ptr.
It's also not possible to just let FrontendAction (or CompilerInstance) own
these listeners due to lifetime issues (see comments on PR19560).
Finally, ASTDeserializationListener can't easily be refcounted, since several of
the current listeners are allocated on the stack.
Having this bool isn't ideal, but it's a pattern that's used in other places in
the codebase too, and it seems better than leaking.
llvm-svn: 208277
This addresses an existing FIXME item in the driver. The code model flag was
parsed in the actual tool rather than in the driver. This was problematic since
the value may be invalid. In that case, we would silently treat it as a default
value in non-assert builds, and abort in assert builds. Add a check in the
driver to validate that the value being passed is valid, and if not provide a
proper error message.
llvm-svn: 208275
C++. This seems like a pointless (and indeed harmful) restriction to me, so
I've suggested removing it to -core and disabled this diagnostic by default.
llvm-svn: 208254
Previously we calculated the shift amount based upon DataLayout::getTypeAllocSizeInBits.
This will only work for legal types - types such as i24 that are created as part of
structs for bitfields will return "32" from that function. Change to using
getTypeSizeInBits.
It turns out that AArch64 didn't run across this problem because it always returned
[1 x i64] as the type for a bitfield, whereas ARM64 returns i64 so goes down this
(better, but wrong) codepath.
llvm-svn: 208231
While constructing ObjC Interface types we might create the declaration
of some normal C++ types, thus adding things to the ReplaceMap. Make
sure we process the ReplaceMap after the ObjC interfaces.
In theory we know at this point, since we're at the end of the TU, that
we won't be upgrading any declarations to definitions, so we could just
construct non-temporary nodes, but that would require extra state in
CGDebugInfo to conditionalize the creation of declaration nodes which
seems annoying/more work than is appropriate.
llvm-svn: 208226
r154191 switched to atexit() instead of global destructors, so the intent
was probably to check for _GLOBAL__D_a _not_ being in the output. There already
is a line for _ZN3barD1Ev further up, so just remove the CH_ECK line referring
to that.
The only circumstance in which clang emits _GLOBAL__D_a destructor symbols is
for -fapple-kext, and that is tested by test/CodeGenCXX/cxx-apple-kext.cpp.
llvm-svn: 208222
Summary: The initial support for NaN2008 was added to the back-end in r206396.
Reviewers: atanasyan
Reviewed By: atanasyan
Differential Revision: http://reviews.llvm.org/D3448
llvm-svn: 208220
In cases where a struct must, according to the AAPCS, not be split between
general purpose and floating point registers, we use
ABIArgInfo::getExpandWithPadding to add the padding arguments. However,
ExpandWithPadding does not work if the struct contains bitfields, so we
instead must use ABIArgInfo::getDirect.
llvm-svn: 208185
So that JS functions can also be merged into a single line.
Before:
var func = function() {
return 1;
};
After:
var func = function() { return 1; };
llvm-svn: 208176
Don't bother with keeping the old support for x86_64 in 6.99.23+, just
use a single range. Update test cases for the always-on --eh-frame-hdr.
llvm-svn: 208170
This applies to __attribute__((pure)) as well, but 'const' is more interesting
because many of our builtins are marked 'const'.
PR19661
llvm-svn: 208154
whether the definition of the template is visible rather than checking whether
the instantiated definition happens to be in an imported module.
llvm-svn: 208150
Summary:
Update our mangling to match the discussion on cxx-abi-dev.
This involves using a seq-id instead of an optional number.
Reviewers: rsmith
Subscribers: cfe-commits
Differential Revision: http://reviews.llvm.org/D3631
llvm-svn: 208140
Replace a large monolitic function, with per-table functions which all nicely
fit on my screen. I also added documentation to each function that describes
what kind of tables are generated and which information is contained and
switched to range based for loops. Finally, I run clang-format over the moved
code.
I spent a significant amount of time to understand this code when reasoning
about possible extensions to the diagnostic interface to support 'remark'
diagnostics. This change will definitely help such an implementation, but
already by itself it will save other people a lot of time when trying to
understand this functionality.
Even though the patch touches the full function, it is mostly mechanical. No
functional change intended. The generated tblgen files are identical.
llvm-svn: 208136
This makes it easier to see where a global ctor comes from, and it also makes
ASan's init order analyzer output easier to understand. gcc does this too,
but only in -fPIC mode for some reason. Don't do this for constructors with
explicit init priority.
Also prepend "sub_" before the 'I', that way regular constructors stay
lexicographically after symbols with init priority (because
ord('s') > ord('I')). gold seems to ignore the name of constructor symbols,
and ld only looks at the symbol if it includes an init priority, which this
patch doesn't change.
Before: __GLOBAL_I_a
Now: __GLOBAL_sub_I_myfile.cc
llvm-svn: 208128
Reverting r208106 to reapply r208065 with a fix for the regression. The
issue was that the enum tried to be built even if the declaration hadn't
been constructed for debug info - presenting problems for enum templates
and typedefs of enums with names for linkage purposes.
Original commit message:
This regressed a little further 208055 though it was already a little
broken.
While the requiresCompleteType optimization should be implemented here.
Future (possibly near future) work.
llvm-svn: 208114
BugReport doesn't take ownership of the bug type, so let the checker own the
the bug type. (Requires making the bug type mutable, which is icky, but which
is also what other checkers do.)
llvm-svn: 208110
(I tried converting StateMapsArray to a vector<unique_ptr> and changing the
types of getInfo() and addInfo() to take unique_ptrs. This mostly worked,
except for the three-argument form of addInfo() which I found confusing enough
that I went with this simpler fix for now.)
llvm-svn: 208108
Before:
goog.scope(function() {
var x = a.b;
var y = c.d;
}); // goog.scope
After:
goog.scope(function() {
var x = a.b;
var y = c.d;
}); // goog.scope
llvm-svn: 208088
This regressed a little further 208055 though it was already a little
broken.
While the requiresCompleteType optimization should be implemented here.
Future (possibly near future) work.
llvm-svn: 208065
Testcase coming out of creduce will land in a separate commit shortly.
Also, it appears that this callback is used even in a SFINAE context where the results are never displayed.
llvm-svn: 208062
CGDebugInfo and DIBuilder were lax in their handling of temporary
MDNodes. All temporary nodes need to be deleted, which means they need
to be RAUW'd with a permanent node. This was not happening.
To ensure this, leverage DIBuilder's new ability to create both
permanent and temporary declarations. Ensure all temporary declarations
are RAUW'd, even with itself. (DIDescriptor::RAUW handles the case where
it is replaced with itself and creates a new, duplicate permanent node
to replace itself with)
This means that all temporary declarations must be added to the
ReplacementMap even if they're never upgraded to definitions - so move
the point of insertion into the map to the point of creation of the
declarations.
llvm-svn: 208055
This takes a different approach than the
completedType/requiresCompleteType work which relies on AST callbacks to
upgrade the type declaration to a definition. Instead, just defer
constructing the definition to the end of the translation unit.
This works because the definition is never needed by other debug info
(so far as I know), whereas the definition of a struct may be needed by
other debug info before the end of the translation unit (such as
emitting the definition of a member function which must refer to that
member function's declaration).
If we had a callback for whenever an IVar was added to an ObjC interface
we could use that, and remove the need for the ObjCInterfaceCache, which
might be nice. (also would need a callback for when it was more than
just a declaration so we could get properties, etc).
A side benefit is that we also don't need the CompletedTypeCache
anymore. Just rely on the declaration-ness of a type to decide whether
its definition is yet to be emitted.
There's still the PR19562 memory leak, but this should hopefully make
that a bit easier to approach.
llvm-svn: 208015
Warn on non-modular includes in various contexts.
-Wnon-modular-include
-Wnon-modular-include-in-module
-Wnon-modular-include-in-framework-module
Where each group is a subgroup of those above it.
llvm-svn: 208004
Items were being redundantly added to the replacement map (both when the
declaration was created, and then again when its definition was
constructed) which caused extra handling to be required when walking the
map (as elements may've already been replaced due to prior entries). By
avoiding adding the duplicates, the checks in the replacement handling
can be replaced with assertions.
llvm-svn: 208000
Currently, users get error messages about RTTI descriptor mangling with
no useful source location. This addresses that.
Another approach would be to disable C++ exceptions by default in the
driver when using the Microsoft C++ ABI. However, this makes it
impossible to parse system headers that use exception handling
constructs. By delaying the error to IRgen, we can figure out if we
actually need to emit code for this construct. Additionally, users who
are only interested in building refactoring tools on Windows still get a
correct AST without having to add flags. Finally, this is consistent
with what we do for SEH.
llvm-svn: 207999
This minified source code and artwork is copied from a commercial product and
carries no license information:
dbtree.js (7 kb), 25.03.2014 14:51:32
Purchase and download DBTree now for only $29.75 $9.75
It was used by a small TOC which looks fine now as a plain unordered list.
llvm-svn: 207995
We would sometimes incorrectly give a thread-wrapper external linkage
instead of internal linkage if we had only CodeGen'd it's declaration,
not it's definition.
This fixes PR19655.
llvm-svn: 207988
The assignment needs to be before the destruction of the temporary.
This patch calls out to addStmt, which invokes VisitDeclStmt, which has
all the correct logic for handling temporaries.
llvm-svn: 207985
Rafael Espindola