Ted Kremenek [Mon, 31 Oct 2011 22:23:51 +0000 (22:23 +0000)]
[libclang] Tweak internals of CXSourceLocation to allow an alternate implementation if the lowest bit of ptr_data[0] is not 0. This
is prep for work on serialized diagnostics.
Ted Kremenek [Mon, 31 Oct 2011 21:40:19 +0000 (21:40 +0000)]
[libclang] Add CXDiagnosticImpl to represent a super class for the implementation backing a CXDiagnostic. This allows CXStoredDiagnostic
to be just one possible implementation of a CXDiagnostic.
Revert r143342. Caching of code-completion results was intentionally placed in "reparse"
because we don't want to take this performance hit when doing code completion
Log of r143342:
Move caching of code-completion results from ASTUnit::Reparse to ASTUnit::CodeComplete,
so that it will happen when we are doing code-completion, not reparsing.
Anders Carlsson [Mon, 31 Oct 2011 16:27:11 +0000 (16:27 +0000)]
In x86_64, when calling an Objective-C method that returns a _Complex long double, make sure to use the objc_msgSend_fp2ret function which ensures that the return value will be {0, 0} if the receiver is nil.
Axel Naumann [Mon, 31 Oct 2011 11:02:24 +0000 (11:02 +0000)]
Add possibility to specify an include location for createFileIDForMemBuffer().
Useful to set up a virtual include hierarchy, e.g. to order diagnostics for ambiguous overloads from MemoryBuffers.
Chandler Carruth [Mon, 31 Oct 2011 09:06:40 +0000 (09:06 +0000)]
Simplify the set of directories we look for on multiarch systems.
I don't have any Debian system with one of these currently, and it seems
unlikely for one to show up suddenly. We can add more patterns here if
they become necessary.
Chandler Carruth [Mon, 31 Oct 2011 08:42:27 +0000 (08:42 +0000)]
Add "just one more" include path to the monstrosity that is our header
search logic. The Debian multiarch seems to have completely changed from
when these were originally added, and I'd like to remove a bunch of
them, but I'll be lazy and delay that until this logic is hoisted into
the driver where it belongs.
Chandler Carruth [Mon, 31 Oct 2011 08:42:24 +0000 (08:42 +0000)]
Fix part of PR11223 and probably a few dups as well. This teaches the
library search logic to "properly" handle multiarch installations. I've
tested this on both Debian unstable and the latest Ubuntu which both use
this setup, and this appears to work largely the same way as GCC does.
It isn't exactly the same, but it is close enough and more principled in
its behavior where it differs. This should resolve any failures to find
'crt1.o' etc on Debian-based Linux distributions. If folks find more
cases where we fail, please file bugs and CC me.
Test cases for all of the debian silliness are waiting both to simplify
the process of merging these down into the 3.0 release, and because
they're so crazy I haven't yet been able to really produce a fake tree
that represents what we need to test for. I'll eventually add them
though.
Move caching of code-completion results from ASTUnit::Reparse to ASTUnit::CodeComplete,
so that it will happen when we are doing code-completion, not reparsing.
Richard Smith [Mon, 31 Oct 2011 05:11:32 +0000 (05:11 +0000)]
C++11 generalized constant expressions: evaluate equality comparisons between
arbitrary pointers, if those pointers don't point to weak objects or literals.
Richard Smith [Sat, 29 Oct 2011 21:53:17 +0000 (21:53 +0000)]
constexpr evaluation: allow lvalue-to-rvalue conversion on any literal type, not
just integers and floating point types. Since we don't support evaluating class
types or performing lvalue-to-rvalue conversions on array elements yet, this
just means pointer types right now.
Richard Smith [Sat, 29 Oct 2011 20:57:55 +0000 (20:57 +0000)]
constexpr function substitution:
Track the function invocation where an lvalue referring to a constexpr function
parameter originated from, and use it to substitute the correct argument and to
determine whether such an argument's lifetime has ended.
Richard Smith [Sat, 29 Oct 2011 00:50:52 +0000 (00:50 +0000)]
Rename Expr::Evaluate to Expr::EvaluateAsRValue to make it clear that it will
implicitly perform an lvalue-to-rvalue conversion if used on an lvalue
expression. Also improve the documentation of Expr::Evaluate* to indicate which
of them will accept expressions with side-effects.
Ted Kremenek [Sat, 29 Oct 2011 00:12:39 +0000 (00:12 +0000)]
Start work on SerializedDiagnosticPrinter, a new DiagnosticConsumer that serializes out the diagnostics for a given translation unit to a bit code file. This is a WIP.
The motivation for this new DiagnosticConsumer is to provide a way for tools invoking the compiler
to get its diagnostics via a libclang interface, rather than textually parsing the compiler output.
This gives us flexibility to change the compiler's textual output, but have a structured data format
for clients to use to get the diagnostics via a stable API.
I have no tests for this, but llvm-bcanalyzer so far shows that the emitted file is well-formed.
Douglas Gregor [Fri, 28 Oct 2011 23:02:54 +0000 (23:02 +0000)]
Give __STDC_VERSION__ the value 201001L when we're in C1x mode. The
committee hasn't set a value for __STDC_VERSION__ yet, so this is a
placeholder. But at least it's > 199901L.
[libclang] Introduce use of CINDEXTEST_FAILONERROR environment variable which, if set,
will cause c-index-test to return as failed if a compiler error occurred.
[ARC] Do not transfer ARC ownership if the cast is going to result in r-value,
in which case the ownership is redundant. Thanks to John for the suggestion.
[PCH] Keep track of file-level declarations that are contained by files.
Introduce a FILE_SORTED_DECLS [de]serialization record that contains
a file sorted array of file-level DeclIDs in a PCH/Module.
The rationale is to allow "targeted" deserialization of decls inside
a range of a source file.
Cocoa PCH increased by 0.8%
Difference of creation time for Cocoa PCH is below the noise level.
Richard Smith [Fri, 28 Oct 2011 22:34:42 +0000 (22:34 +0000)]
Initial support for C++11 constexpr function invocation substitution. Using
constexpr function arguments outside of their function (passing or returning
them by reference) does not work correctly yet.
Calling constexpr function templates does not work yet, since the bodies are not
instantiated until the end of the translation unit.
Devang Patel [Fri, 28 Oct 2011 21:12:13 +0000 (21:12 +0000)]
In case of template specialization, do not try to delay emitting debug info for concrete type in -flimit-debug-info mode. This fixes some of the failures from bs15503.exp tests in gdb testsuite.
objective-c arc: type-casting of an objc pointer to
an rvalue retainable object type with life-time qualifier has no
effect and wil be diagnosed as error. // rdar://10244607
Richard Smith [Fri, 28 Oct 2011 17:51:58 +0000 (17:51 +0000)]
Reinstate r142844 (reverted in r142872) now that lvalue-to-rvalue conversions
are present in all the necessary places:
In constant expression evaluation, evaluate lvalues as lvalues and rvalues as
rvalues. Remove special case for caching reference initialization and fix a
cyclic initialization crash in the process.
Richard Smith [Fri, 28 Oct 2011 03:31:48 +0000 (03:31 +0000)]
Add (hopefully) the last missing lvalue-to-rvalue conversion. Add an assertion
to catch some future implicit lvalue-to-rvalue casts of inappropriate kinds.
Richard Trieu [Fri, 28 Oct 2011 00:41:25 +0000 (00:41 +0000)]
Fix for PR9751 to change the behavior of -Wformat warnings. If the format
string is part of the function call, then there is no difference. If the
format string is not, the warning will point to the call site and a note
will point to where the format string is.
Fix-it hints for strings are moved to the note if a note is emitted. This will
prevent changes to format strings that may be used in multiple places.
Richard Smith [Thu, 27 Oct 2011 22:11:44 +0000 (22:11 +0000)]
Fix some cases where a CK_IntegralCast was being used to convert an lvalue to an
rvalue. An assertion to catch this is in ImpCastExprToType will follow, but
vector operations currently trip over this (due to omitting the usual arithmetic
conversions). Also add an assert to catch missing lvalue-to-rvalue conversions
on the LHS of ->.
Annotate imprecise FP division with fpaccuracy metadata
The OpenCL single precision division operation is only required to
be accurate to 2.5ulp. Annotate the fdiv instruction with metadata
which signals to the backend that an imprecise divide instruction
may be used.
Ted Kremenek [Thu, 27 Oct 2011 17:55:18 +0000 (17:55 +0000)]
Move ASTUnit's handling of temporary files and the preamble file into a lazily-created static DenseMap. This DenseMap is cleared (and the files erased) via an atexit routine in the case an ASTUnit is not destroyed. Fixes <rdar://problem/10293367>.
Douglas Gregor [Thu, 27 Oct 2011 09:33:13 +0000 (09:33 +0000)]
Make the loading of information attached to an IdentifierInfo from an
AST file more lazy, so that we don't eagerly load that information for
all known identifiers each time a new AST file is loaded. The eager
reloading made some sense in the context of precompiled headers, since
very few identifiers were defined before PCH load time. With modules,
however, a huge amount of code can get parsed before we see an
@import, so laziness becomes important here.
The approach taken to make this information lazy is fairly simple:
when we load a new AST file, we mark all of the existing identifiers
as being out-of-date. Whenever we want to access information that may
come from an AST (e.g., whether the identifier has a macro definition,
or what top-level declarations have that name), we check the
out-of-date bit and, if it's set, ask the AST reader to update the
IdentifierInfo from the AST files. The update is a merge, and we now
take care to merge declarations before/after imports with declarations
from multiple imports.
The results of this optimization are fairly dramatic. On a small
application that brings in 14 non-trivial modules, this takes modules
from being > 3x slower than a "perfect" PCH file down to 30% slower
for a full rebuild. A partial rebuild (where the PCH file or modules
can be re-used) is down to 7% slower. Making the PCH file just a
little imperfect (e.g., adding two smallish modules used by a bunch of
.m files that aren't in the PCH file) tips the scales in favor of the
modules approach, with 24% faster partial rebuilds.
This is just a first step; the lazy scheme could possibly be improved
by adding versioning, so we don't search into modules we already
searched. Moreover, we'll need similar lazy schemes for all of the
other lookup data structures, such as DeclContexts.
Anna Zaks [Thu, 27 Oct 2011 00:59:23 +0000 (00:59 +0000)]
[analyzer] Make CoreEngine responsible for enqueueing Stmt Nodes.
Enqueue the nodes generated as the result of processing a statement
inside the Core Engine. This makes sure ExpEngine does not access
CoreEngine's private members and is more concise.
Objective-c: fix an ir-gen crash where objc messag returns a _Complex
value and ABI requires return slot to be passed as first
argument to message sent. // rdar://10331109
Richard Smith [Wed, 26 Oct 2011 19:06:56 +0000 (19:06 +0000)]
Pull out conversion on LHS of -> and . into its own function. This happens
implicitly in LookupMemberExpr and explicitly in cases where template
instantiation doesn't redo the lookup.
projects / clang / log