to pass to ToolChains, which may need Driver specific information (for
example, to form search paths).
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- Slightly strange, but the idea is that the ArgList data structure
is primarily a list of arguments; we want to allow clients to still
add argument strings to an ArgList to avoid worrying about string
lifetimes (or unnecessary string copying).
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diagnostics. This builds on the patch that Sebastian committed and
then revert. Major differences are:
- We don't remove or use the current ".def" files. Instead, for now,
we just make sure that we're building the ".inc" files.
- Fixed CMake makefiles to run TableGen and build the ".inc" files
when needed. Tested with both the Xcode and Makefile generators
provided by CMake, so it should be solid.
- Fixed normal makefiles to handle out-of-source builds that involve
the ".inc" files.
I'll send a separate patch to the list with Sebastian's changes that
eliminate the use of the .def files.
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- Still need code for determining proper output location.
- Doesn't work yet, of course, as the host isn't providing real
tool chains.
- Interface still has a few warts, but has gotten a nice bit of
polish during the rewrite.
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access to most data should go through the current Compilation, not the
Driver (which shouldn't be specialized on variables for a single
compilation).
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- This has a number of current flaws, enabling now to flush out
problems while bringing up other parts.
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- language recognition was recognizing prefixes incorrectly.
- -x none wasn't working.
- test for "can lipo" was backwords.
- missed a '"' in -ccc-print-phases
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to perform). Still doesn't do anything interesting.
- This code came out much cleaner than in ccc with the reworked
phases & mapping of types to lists of compilation steps (phases) to
perform.
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- Who wouldn't want correctness to hang critically on two easily
ignored characters?
Thanks Doug!
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- Compare to driverdriver.c if bored; not completely fair since the
driver gets a bit more code in other places to handle binding archs
(for Xarch) but not completely unfair either.
Fear not, extra Action classes will have a happy home for their
vtables soon.
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- Use OPT_ prefix for ids.
- Reference groups and aliases by shortend id (on the theory that
this is more readable).
- Rename the special option ids to more protected names.
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identifier; we will want to use the latter in situations where we just
want to check for a match, but not load options unnecessarily.
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- Add Driver::ParseArgStrings.
- Store values directly in CommaJoinedArg to support simple access.
- Add FlagArg class.
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- Add Options.def file, collects option information.
- Actual option instantiation is handled lazily by OptTable to allow
the driver to not need to instantiate all options.
- cast<> support for Option, other minor tweaks.
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know how to recover from an error, we can attach a hint to the
diagnostic that states how to modify the code, which can be one of:
- Insert some new code (a text string) at a particular source
location
- Remove the code within a given range
- Replace the code within a given range with some new code (a text
string)
Right now, we use these hints to annotate diagnostic information. For
example, if one uses the '>>' in a template argument in C++98, as in
this code:
template<int I> class B { };
B<1000 >> 2> *b1;
we'll warn that the behavior will change in C++0x. The fix is to
insert parenthese, so we use code insertion annotations to illustrate
where the parentheses go:
test.cpp:10:10: warning: use of right-shift operator ('>>') in template
argument will require parentheses in C++0x
B<1000 >> 2> *b1;
^
( )
Use of these annotations is partially implemented for HTML
diagnostics, but it's not (yet) producing valid HTML, which may be
related to PR2386, so it has been #if 0'd out.
In this future, we could consider hooking this mechanism up to the
rewriter to actually try to fix these problems during compilation (or,
after a compilation whose only errors have fixes). For now, however, I
suggest that we use these code modification hints whenever we can, so
that we get better diagnostics now and will have better coverage when
we find better ways to use this information.
This also fixes PR3410 by placing the complaint about missing tokens
just after the previous token (rather than at the location of the next
token).
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"after" group instead of the system group makes it so #include <limits.h>
picks up the *system* limits.h file before clang's. This causes a failure
on linux and is definitely not what we want.
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keep searching for C++ headers when in C++ mode). In theory clang
should be able to find all of its own headers now. If not, the
CPATH or C_INCLUDE_PATH environment variables can be specified to
add a include path.
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diagnostics. I'm not sure I want to keep this, but hey, it's easy
and could be useful or something, even if guarded by a
-fshow-me-tons-of-details option. A silly example is:
#define A B
#define C A
#define D C
int y = D;
We now emit:
t.c:11:9: error: use of undeclared identifier 'B'
int y = D;
^
t.c:9:11: note: instantiated from:
#define D C
^
t.c:8:11: note: instantiated from:
#define C A
^
t.c:7:11: note: instantiated from:
#define A B
^
A more useful example is from tgmath:
t.c:4:9: error: no matching function for call to '__tg_acos'
return acos(x);
^~~~~~~
/Users/sabre/llvm/Debug/Headers/tgmath-sofar.h:51:17: note: instantiated from:
#define acos(x) __tg_acos(x)
^
... candidate set follows ...
This does not yet print ranges in instantiation info, (e.g. highlighting the
range "__tg_acos(x)" in the last example), but that could be added if we
decide this is a good idea :).
Thoughts and bug reports welcome!
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highlight the arguments to the macro as well as the identifier.
Before:
t.c:3:9: error: no matching function for call to '__tg_acos'; candidates are:
return acos(x);
^~~~
after:
t.c:3:9: error: no matching function for call to '__tg_acos'; candidates are:
return acos(x);
^~~~~~~
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the "system dirs win over user dirs" logic to framework and headermap
search locations as well as normal directories. This means that
clang t.m -F/System/Library/Frameworks will treat /System/Library/Frameworks
as a system directory not a user directory. If you use -v, the difference is:
Before:
ignoring nonexistent directory "/usr/libdata/gcc41"
ignoring duplicate framework "/System/Library/Frameworks"
#include "..." search starts here:
#include <...> search starts here:
After:
ignoring nonexistent directory "/usr/libdata/gcc41"
ignoring duplicate directory "/System/Library/Frameworks"
as it is a non-system directory that duplicates a system directory
#include "..." search starts here:
#include <...> search starts here:
This fixes rdar://6566429.
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getColumnNumber. This fixes a FIXME in
SourceManager::getPresumedLoc because we now just decompose
the sloc once.
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makes it clear to clients that they have to pick an instantiation
or spelling location before calling it and allows optimization based
on that.
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parameter that allows users to omit the printing of the source
location on a diagnostic. So basically it would omit the "abc.c:5:1: "
at the beginning of the line."
Patch by Alexei Svitkine!
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as reported to the user and as manipulated by #line. This is what __FILE__,
__INCLUDE_LEVEL__, diagnostics and other things should follow (but not
dependency generation!).
This patch also includes several cleanups along the way:
- SourceLocation now has a dump method, and several other places
that did similar things now use it.
- I cleaned up some code in AnalysisConsumer, but it should probably be
simplified further now that NamedDecl is better.
- TextDiagnosticPrinter is now simplified and cleaned up a bit.
This patch is a prerequisite for #line, but does not actually provide
any #line functionality.
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- Add the distinction between the 'bug type' and the 'bug description'
HTMLDiagnostics:
- Output the bug type field as HTML comments
scan-build:
- Use the bug type field instead of the bug description for the HTML table.
- Radar filing now automatically picks up the bug description in the title (addresses <rdar://problem/6265970>)
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the chunk ID not the file ID. This exposes problems in
TextDiagnosticPrinter where it should have been using the canonical
file ID but wasn't. Fix these along the way.
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"FileID" a concept that is now enforced by the compiler's type checker
instead of yet-another-random-unsigned floating around.
This is an important distinction from the "FileID" currently tracked by
SourceLocation. *That* FileID may refer to the start of a file or to a
chunk within it. The new FileID *only* refers to the file (and its
#include stack and eventually #line data), it cannot refer to a chunk.
FileID is a completely opaque datatype to all clients, only SourceManager
is allowed to poke and prod it.
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- Creator function pointers are saved in ManagerRegistry.
- The Register* class is used to notify ManagerRegistry new module is
available.
- AnalysisManager queries ManagerRegistry for configurable module. Then it
passes them to GRExprEngine, in turn to GRStateManager.
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This also makes it illegal to have bare '%'s in diagnostics. If you
want a % in a diagnostic, use %%.
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are formed. In particular, a diagnostic with all its strings and ranges is now
packaged up and sent to DiagnosticClients as a DiagnosticInfo instead of as a
ton of random stuff. This has the benefit of simplifying the interface, making
it more extensible, and allowing us to do more checking for things like access
past the end of the various arrays passed in.
In addition to introducing DiagnosticInfo, this also substantially changes how
Diagnostic::Report works. Instead of being passed in all of the info required
to issue a diagnostic, Report now takes only the required info (a location and
ID) and returns a fresh DiagnosticInfo *by value*. The caller is then free to
stuff strings and ranges into the DiagnosticInfo with the << operator. When
the dtor runs on the DiagnosticInfo object (which should happen at the end of
the statement), the diagnostic is actually emitted with all of the accumulated
information. This is a somewhat tricky dance, but it means that the
accumulated DiagnosticInfo is allowed to keep pointers to other expression
temporaries without those pointers getting invalidated.
This is just the minimal change to get this stuff working, but this will allow
us to eliminate the zillions of variant "Diag" methods scattered throughout
(e.g.) sema. For example, instead of calling:
Diag(BuiltinLoc, diag::err_overload_no_match, typeNames,
SourceRange(BuiltinLoc, RParenLoc));
We will soon be able to just do:
Diag(BuiltinLoc, diag::err_overload_no_match)
<< typeNames << SourceRange(BuiltinLoc, RParenLoc));
This scales better to support arbitrary types being passed in (not just
strings) in a type-safe way. Go operator overloading?!
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strings instead of array of strings. This reduces string copying
in some not-very-important cases, but paves the way for future
improvements.
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the Backend output should be done in binary mode.
- I'd appreciate it if someone who has a Windows build could verify
this.
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conversions.
Added PerformImplicitConversion, which follows an implicit conversion sequence
computed by TryCopyInitialization and actually performs the implicit
conversions, including the extra check for ambiguity mentioned above.
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directory is shadowed by a user directory in the lookup
path, ignore the user directory not the system one. Not
doing this can affect file lookup and the "is a system
header" bit on locations. For example:
clang -v -I/usr/include inc.c -E | & grep /usr/inc
now prints:
# 1 "/usr/include/i386/_types.h" 1 3 4
# 37 "/usr/include/i386/_types.h" 3 4
# 70 "/usr/include/i386/_types.h" 3 4
instead of:
# 1 "/usr/include/i386/_types.h" 1
# 37 "/usr/include/i386/_types.h"
# 70 "/usr/include/i386/_types.h"
This is part of rdar://6243860.
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Changed casing of many bug names. The convention will be to have bug names (mostly) lower cased, and categories use some capitalization.
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"Here is a patch what replaces std::ostream with llvm::raw_ostream. This patch
covers the AST library, but ignores Analysis lib."
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For example, adding the default system include paths in clients is now as
simple as
InitHeaderSearch init(headers);
init.AddDefaultSystemIncludePaths(langopts);
init.Realize();
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- Kill unnecessary #includes in .cpp files. This is an automatic
sweep so some things removed are actually used, but happen to be
included by a previous header. I tried to get rid of the obvious
examples and this was the easiest way to trim the #includes in one
fell swoop.
- We now return to regularly scheduled development.
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* Move FormatError() from TextDiagnostic up to DiagClient, remove now
empty class TextDiagnostic
* Make DiagClient optional for Diagnostic
This fixes the following problems:
* -html-diags (and probably others) does now output the same set of
warnings as console clang does
* nothing crashes if one forgets to call setHeaderSearch() on
TextDiagnostic
* some code duplication is removed
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Daniel Dunbar
Chris Lattner
Douglas Gregor
Gabor Greif
Mike Stump
Ted Kremenek
Ben Laurie
Torok Edwin
Zhongxing Xu
Nuno Lopes
Eli Friedman
Cedric Venet
Oscar Fuentes
Argyrios Kyrtzidis
Nico Weber
Gordon Henriksen