Commit Graph

256 Commits

Author SHA1 Message Date
Francois Pichet 26e809692a Do not use builtin includes if -fms-compatibility is specified. Some MSVC header files have the same name as clang's builtins, this creates clash.
llvm-svn: 140009
2011-09-19 05:15:54 +00:00
Francois Pichet 0706d203cf Rename LangOptions::Microsoft to LangOptions::MicrosoftExt to make it clear that this flag must be used only for Microsoft extensions and not emulation; to avoid confusion with the new LangOptions::MicrosoftMode flag.
Many of the code now under LangOptions::MicrosoftExt will eventually be moved under the LangOptions::MicrosoftMode flag.

llvm-svn: 139987
2011-09-17 17:15:52 +00:00
Francois Pichet 1b4f1637fb As per discussion with Doug Gregor on the IRC channel, introduce a new compiler switch: -fms-compatility.
Microsoft specific tweaking will now fall into 2 categories:

    - fms-extension: Microsoft specific extensions that should never change the meaning of an otherwise well formed code. Currently map to LangOptions::Microsoft. (To be clearer, I am planning to change the name to LangOptions::MicrosoftExt).

    - fms-compatibility: Really a MSVC emulation mode. Map to LangOptions::MicrosoftMode. Can change the meaning of an otherwise standard conformant program.

llvm-svn: 139978
2011-09-17 04:32:15 +00:00
Douglas Gregor 97eec24b0b Add an experimental flag -fauto-module-import that automatically turns
#include or #import direcctives of framework headers into module
imports of the corresponding framework module.

llvm-svn: 139860
2011-09-15 22:00:41 +00:00
Douglas Gregor 8a880e3ff6 Eliminate the unused -create-module cc1-level option
llvm-svn: 139827
2011-09-15 19:45:56 +00:00
Douglas Gregor a739d9a023 Encode the module hash in base-36, to reduce the length of the strings a bit
llvm-svn: 139696
2011-09-14 15:55:12 +00:00
Douglas Gregor 1735f4e752 For modules, use a hash of the compiler version, language options, and
target triple to separate modules built under different
conditions. The hash is used to create a subdirectory in the module
cache path where other invocations of the compiler (with the same
version, language options, etc.) can find the precompiled modules.

llvm-svn: 139662
2011-09-13 23:15:45 +00:00
Douglas Gregor 79a91418bd Switch LangOptions over to a .def file that describes header of the
language options. Use that .def file to declare the LangOptions class
and initialize all of its members, eliminating a source of annoying
initialization bugs.

AST serialization changes are next up.

llvm-svn: 139605
2011-09-13 17:21:33 +00:00
Douglas Gregor 1e44e02292 Introduce a cc1-level option to provide the path to the module cache,
where the compiler will look for module files. Eliminates the
egregious hack where we looked into the header search paths for
modules.

llvm-svn: 139538
2011-09-12 20:41:59 +00:00
John McCall 7959fee258 Treat the weak export of block runtime symbols as a deployment-target
feature akin to the ARC runtime checks.  Removes a terrible hack where
IR gen needed to find the declarations of those symbols in the translation
unit.

llvm-svn: 139404
2011-09-09 20:41:01 +00:00
Douglas Gregor c67bcd5b65 Remove the -import-module option. It's no longer useful
llvm-svn: 138681
2011-08-27 00:03:05 +00:00
Chad Rosier ba3df1d3ca [driver] Add -mglobal-merge/-mno-global-merge machine options to enable/disable merging of
globals during codegen.
Fixes <rdar://problem/10017909>.

llvm-svn: 138612
2011-08-26 00:26:29 +00:00
Douglas Gregor 2ed0ee1ace Eliminate the -chained-pch flag and all of the frontend and libclang options associated with it. Chained PCH is the only way to build a PCH file that includes another PCH file
llvm-svn: 138597
2011-08-25 22:54:01 +00:00
Douglas Gregor 69f74f80db Introduce a -cc1 option "-emit-module", that creates a binary module
from the given source. -emit-module behaves similarly to -emit-pch,
except that Sema is somewhat more strict about the contents of
-emit-module. In the future, there are likely to be more interesting
differences.

llvm-svn: 138595
2011-08-25 22:30:56 +00:00
Nico Weber c687cae11d Accept -x objc++-cpp-output as an alias for -x objective-c++-cpp-output
This is the ObjC++ version of r129201. It's for example needed to use
ccache with clang.

llvm-svn: 137560
2011-08-13 19:03:50 +00:00
Jonathan D. Turner 0248f57d59 Wire up -import-module to run ReadAST for each module loaded.
llvm-svn: 136987
2011-08-05 22:17:03 +00:00
Ted Kremenek 73665188fc Really remove FlatStoreManager and BasicStoreManager, this time from the driver. Also remove associated tests. Sorry for the messy commits; this is the result of a botched Git merge.
llvm-svn: 136422
2011-07-28 23:08:16 +00:00
Douglas Gregor 9f93e38aaf Introduce the "-index-header-map" option, to give special semantics
for quoted header lookup when dealing with not-yet-installed
frameworks. Fixes <rdar://problem/9824020>.

llvm-svn: 136331
2011-07-28 04:45:53 +00:00
Chris Lattner 0e62c1cc0b remove unneeded llvm:: namespace qualifiers on some core types now that LLVM.h imports
them into the clang namespace.

llvm-svn: 135852
2011-07-23 10:55:15 +00:00
Argyrios Kyrtzidis d571363e45 [arcmt] Add some additional driver flags to optionally emit or save the pre-migration ARC errors.
-arcmt-migrate-emit-errors : Emits the pre-migration ARC errors but it doesn't affect anything else
-arcmt-migrate-report-output : Writes out the pre-migration ARC errors to the provided plist file

rdar://9791454

llvm-svn: 135491
2011-07-19 17:20:03 +00:00
John McCall 3f4138c5d0 In debugger mode, make ObjC message sends to unknown selectors return
__unknown_anytype, and rewrite such message sends correctly.

I had to bite the bullet and actually add a debugger support mode for this
one, which is a bit unfortunate, but there really isn't anything else
I could imagine doing;  this is clearly just debugger-specific behavior.

llvm-svn: 135051
2011-07-13 17:56:40 +00:00
Peter Collingbourne 77b0e7f296 Implement -MG. Fixes PR9613
llvm-svn: 134996
2011-07-12 19:35:15 +00:00
Argyrios Kyrtzidis 7fbd97f641 [arcmt] Introduce new '-ccc-arcmt-migrate <path>' ARC migration driver option.
This is a new mode of migration, where we avoid modifying the original files but
we emit temporary files instead.

<path> will be used to keep migration process metadata. Currently the temporary files
that are produced are put in the system's temp directory but we can put them
in the <path> if is necessary.

Also introduce new ARC migration functions in libclang whose only purpose,
currently, is to accept <path> and provide pairs of original file/transformed file
to map from the originals to the files after transformations are applied.

Finally introduce the c-arcmt-test utility that exercises the new libclang functions,
update arcmt-test, and add tests for the whole process.

rdar://9735086.

llvm-svn: 134844
2011-07-09 20:00:58 +00:00
Jonathan D. Turner f8c3ccdeae Remove BoostCon-specific code from Clang. FWIW, I'm a fan of things like this living in a separate branch.
llvm-svn: 134649
2011-07-07 22:40:15 +00:00
John McCall 9de1978f6e Call objc_terminate() instead of abort() when a cleanup throws an
exception in Objective-C;  in Objective-C++ we still use std::terminate().
This is only available in very recent runtimes.

llvm-svn: 134456
2011-07-06 01:22:26 +00:00
John McCall 24fc0decfe Change the driver's logic about Objective-C runtimes: abstract out a
structure to hold inferred information, then propagate each invididual
bit down to -cc1.  Separate the bits of "supports weak" and "has a native
ARC runtime";  make the latter a CodeGenOption.

The tool chain is still driving this decision, because it's the place that
has the required deployment target information on Darwin, but at least it's
better-factored now.

llvm-svn: 134453
2011-07-06 00:26:06 +00:00
Fariborz Jahanian 25e61c58bf Use existing -fcatch-undefined-behavior option,
replacing -freset-local-blocks. // rdar://9227352

llvm-svn: 134082
2011-06-29 18:41:17 +00:00
Fariborz Jahanian fc510bdd94 Under a compiler flag, -freset-local-blocks,
wipe out stack blocks when they go out of scope.
// rdar://9227352

llvm-svn: 134045
2011-06-28 23:51:26 +00:00
Bob Wilson f64a560d74 Make InitHeaderSearch::AddPath and HeaderSearchOptions::AddPath consistent
use an "IgnoreSysRoot" argument.  HeaderSearchOptions had been using the
opposite form with "IsSysRootRelative", which made for much confusion when
looking at true/false values in calls in AddPath.  No functional change.

llvm-svn: 133550
2011-06-21 21:53:08 +00:00
Bob Wilson b02ea3d70d Fix the default libc++ header search path to be sysrooted. Radar 9639692.
The -cxx-isystem path is not prefixed with the sysroot directory, so it's
not a good way for the driver to set the system default C++ search path.
Instead, add -stdlib as a cc1 option and teach the frontend how to find the
headers.  The driver can then just pass -stdlib through to "cc1".

llvm-svn: 133547
2011-06-21 21:12:29 +00:00
Daniel Dunbar d3f3d932ee IRgen: Add a -fuse-register-sized-bitfield-access option, for testing.
- Changes bit-field access policy to try to use (aligned) register sized accesses.

The idea here is that by using larger accesses we expose more coalescing
potential to the backend when we have situations like adjacent bit-fields in the
same structure (which is common), and that the backend should be smart enough to
narrow the accesses down when no coalescing is done or when it is shown not to
be profitable.

--
$ clang -m32 -O3 -S -o - t.c
_f0:                                    ## @f0
	pushl	%ebp
	movl	%esp, %ebp
	movl	8(%ebp), %eax
	movb	(%eax), %cl
	andb	$-128, %cl
	orb	$1, %cl
	movb	%cl, (%eax)
	movb	1(%eax), %cl
	andb	$-128, %cl
	orb	$1, %cl
	movb	%cl, 1(%eax)
	movb	2(%eax), %cl
	andb	$-128, %cl
	orb	$1, %cl
	movb	%cl, 2(%eax)
	movb	3(%eax), %cl
	andb	$-128, %cl
	orb	$1, %cl
	movb	%cl, 3(%eax)
	popl	%ebp
	ret

$ clang -m32 -O3 -S -o - t.c -Xclang -fuse-register-sized-bitfield-access
_f0:                                    ## @f0
	pushl	%ebp
	movl	%esp, %ebp
	movl	8(%ebp), %eax
	movl	$-2139062144, %ecx      ## imm = 0xFFFFFFFF80808080
	andl	(%eax), %ecx
	orl	$16843009, %ecx         ## imm = 0x1010101
	movl	%ecx, (%eax)
	popl	%ebp
	ret
--

llvm-svn: 133532
2011-06-21 18:54:46 +00:00
Nick Lewycky ca6b90d8af Add support for -Wa,--noexecstack when building from a non-assembly file. For
an assembly file it worked correctly, while for a .c file it would given an
error about how --noexecstack is not a supported argument to -Wa.

llvm-svn: 133489
2011-06-21 00:14:18 +00:00
Argyrios Kyrtzidis 1240f4e53a [arcmt] Remove '-arcmt-modify-in-memory', it turned out less useful than we hoped it would be.
llvm-svn: 133315
2011-06-17 23:49:31 +00:00
John McCall d70fb9812a The ARC Migration Tool. All the credit goes to Argyrios and Fariborz
for this.

llvm-svn: 133104
2011-06-15 23:25:17 +00:00
John McCall 31168b077c Automatic Reference Counting.
Language-design credit goes to a lot of people, but I particularly want
to single out Blaine Garst and Patrick Beard for their contributions.

Compiler implementation credit goes to Argyrios, Doug, Fariborz, and myself,
in no particular order.

llvm-svn: 133103
2011-06-15 23:02:42 +00:00
Douglas Gregor a860e6aebc Introduce a -cc1-level option to turn off related result type
inference, to be used (only) by the Objective-C rewriter.

llvm-svn: 133025
2011-06-14 23:20:43 +00:00
Douglas Gregor c9224d6714 Eliminate the -f[no]objc-infer-related-result-type flags; there's no
reason to allow the user to control these semantics through a flag.

llvm-svn: 132919
2011-06-13 16:42:53 +00:00
Douglas Gregor 33823727c8 Implement Objective-C Related Result Type semantics.
Related result types apply Cocoa conventions to the type of message
sends and property accesses to Objective-C methods that are known to
always return objects whose type is the same as the type of the
receiving class (or a subclass thereof), such as +alloc and
-init. This tightens up static type safety for Objective-C, so that we
now diagnose mistakes like this:

t.m:4:10: warning: incompatible pointer types initializing 'NSSet *'
with an
      expression of type 'NSArray *' [-Wincompatible-pointer-types]
  NSSet *array = [[NSArray alloc] init];
         ^       ~~~~~~~~~~~~~~~~~~~~~~
/System/Library/Frameworks/Foundation.framework/Headers/NSObject.h:72:1:
note: 
      instance method 'init' is assumed to return an instance of its
      receiver
      type ('NSArray *')
- (id)init;
^

It also means that we get decent type inference when writing code in
Objective-C++0x:

  auto array = [[NSMutableArray alloc] initWithObjects:@"one",  @"two",nil];
  //    ^ now infers NSMutableArray* rather than id

llvm-svn: 132868
2011-06-11 01:09:30 +00:00
Rafael Espindola fb2af643e4 Implement -fgnu89-inline. Fixes PR10041.
llvm-svn: 132460
2011-06-02 16:13:27 +00:00
Douglas Gregor 643c922e66 Introduce the -fdiagnostics-format=xxx option to control how Clang
prints the file, line, and column of a diagnostic. We currently
support Clang's normal format, MSVC, and Vi formats.

Note that we no longer change the diagnostic format based on
-fms-extensions.

Patch by Andrew Fish!

llvm-svn: 131794
2011-05-21 17:07:29 +00:00
Nick Lewycky 85c011ddc4 Preserve the full name of the file, so that '-c -o foo.pic.o' produces
foo.pic.gcno instead of foo.gcno.

llvm-svn: 130899
2011-05-05 00:08:20 +00:00
Alexis Hunt e262299b72 Change cycle detection to be based off of a warning flag.
llvm-svn: 130898
2011-05-05 00:05:47 +00:00
Nick Lewycky 480cb9918d Record where the GCOV data files should be placed.
llvm-svn: 130866
2011-05-04 20:46:58 +00:00
Alexis Hunt 6118d6642b Implement a better version of delegating constructor cycle detection.
This is more efficient as it's all done at once at the end of the TU.
This could still get expensive, so a flag is provided to disable it. As
an added bonus, the diagnostics will now print out a cycle.

The PCH test is XFAILed because we currently can't deal with a note
emitted in the header and I, being tired, see no other way to verify the
serialization of delegating constructors. We should probably address
this problem /somehow/ but no good solution comes to mind.

llvm-svn: 130836
2011-05-04 05:57:24 +00:00
Chad Rosier 24874a449c When using -std= flag added check to make sure language and standard are compatable
llvm-svn: 130710
2011-05-02 19:24:53 +00:00
Rafael Espindola e264187cf2 Implement -fno-dwarf2-cfi-asm.
llvm-svn: 130616
2011-04-30 18:35:43 +00:00
Chad Rosier 3909e037ab Removed redundant case statements
llvm-svn: 130564
2011-04-30 00:03:48 +00:00
Bob Wilson 9a5f84facb Add -Oz option and use it to set the inline threshold to 25.
Radar 9333566.  Patch by Chad Rosier!

llvm-svn: 130554
2011-04-29 22:49:50 +00:00
Chandler Carruth 30483fb188 Move all of the logic for __DEPRECATED to the driver based on comments
from dgregor.

llvm-svn: 130066
2011-04-23 19:48:40 +00:00
Chandler Carruth 61fbf62838 Fix Clang's __DEPRECATED define to be controled by -Wdeprecated. This
matches GCC behavior which libstdc++ uses to limit #warning-based
messages about deprecation.

The machinery involves threading this through a new '-fdeprecated-macro'
flag for CC1. The flag defaults to "on", similarly to -Wdeprecated. We
turn the flag off in the driver when the warning is turned off (modulo
matching some GCC bugs). We record this as a language option, and key
the preprocessor on the option when introducing the define.

A separate flag rather than a '-D' flag allows us to properly represent
the difference between C and C++ builds (only C++ receives the define),
and it allows the specific behavior of following -Wdeprecated without
potentially impacting the set of user-provided macro flags.

llvm-svn: 130055
2011-04-23 09:27:53 +00:00