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2011-07-13In debugger mode, make ObjC message sends to unknown selectors returnJohn McCall
__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. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@135051 91177308-0d34-0410-b5e6-96231b3b80d8
2011-07-12Implement -MG. Fixes PR9613Peter Collingbourne
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@134996 91177308-0d34-0410-b5e6-96231b3b80d8
2011-07-09[arcmt] Introduce new '-ccc-arcmt-migrate <path>' ARC migration driver option.Argyrios Kyrtzidis
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. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@134844 91177308-0d34-0410-b5e6-96231b3b80d8
2011-07-07Remove BoostCon-specific code from Clang. FWIW, I'm a fan of things like ↵Jonathan D. Turner
this living in a separate branch. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@134649 91177308-0d34-0410-b5e6-96231b3b80d8
2011-07-06Call objc_terminate() instead of abort() when a cleanup throws anJohn McCall
exception in Objective-C; in Objective-C++ we still use std::terminate(). This is only available in very recent runtimes. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@134456 91177308-0d34-0410-b5e6-96231b3b80d8
2011-07-06Change the driver's logic about Objective-C runtimes: abstract out aJohn McCall
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. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@134453 91177308-0d34-0410-b5e6-96231b3b80d8
2011-06-29Use existing -fcatch-undefined-behavior option,Fariborz Jahanian
replacing -freset-local-blocks. // rdar://9227352 git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@134082 91177308-0d34-0410-b5e6-96231b3b80d8
2011-06-28Under a compiler flag, -freset-local-blocks,Fariborz Jahanian
wipe out stack blocks when they go out of scope. // rdar://9227352 git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@134045 91177308-0d34-0410-b5e6-96231b3b80d8
2011-06-21Make InitHeaderSearch::AddPath and HeaderSearchOptions::AddPath consistentBob Wilson
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. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@133550 91177308-0d34-0410-b5e6-96231b3b80d8
2011-06-21Fix the default libc++ header search path to be sysrooted. Radar 9639692.Bob Wilson
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". git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@133547 91177308-0d34-0410-b5e6-96231b3b80d8
2011-06-21IRgen: Add a -fuse-register-sized-bitfield-access option, for testing.Daniel Dunbar
- 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 -- git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@133532 91177308-0d34-0410-b5e6-96231b3b80d8
2011-06-21Add support for -Wa,--noexecstack when building from a non-assembly file. ForNick Lewycky
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. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@133489 91177308-0d34-0410-b5e6-96231b3b80d8
2011-06-17[arcmt] Remove '-arcmt-modify-in-memory', it turned out less useful than we ↵Argyrios Kyrtzidis
hoped it would be. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@133315 91177308-0d34-0410-b5e6-96231b3b80d8
2011-06-15The ARC Migration Tool. All the credit goes to Argyrios and FariborzJohn McCall
for this. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@133104 91177308-0d34-0410-b5e6-96231b3b80d8
2011-06-15Automatic Reference Counting.John McCall
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. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@133103 91177308-0d34-0410-b5e6-96231b3b80d8
2011-06-14Introduce a -cc1-level option to turn off related result typeDouglas Gregor
inference, to be used (only) by the Objective-C rewriter. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@133025 91177308-0d34-0410-b5e6-96231b3b80d8
2011-06-13Eliminate the -f[no]objc-infer-related-result-type flags; there's noDouglas Gregor
reason to allow the user to control these semantics through a flag. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@132919 91177308-0d34-0410-b5e6-96231b3b80d8
2011-06-11Implement Objective-C Related Result Type semantics.Douglas Gregor
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 git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@132868 91177308-0d34-0410-b5e6-96231b3b80d8
2011-06-02Implement -fgnu89-inline. Fixes PR10041.Rafael Espindola
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@132460 91177308-0d34-0410-b5e6-96231b3b80d8
2011-05-21Introduce the -fdiagnostics-format=xxx option to control how ClangDouglas Gregor
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! git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@131794 91177308-0d34-0410-b5e6-96231b3b80d8
2011-05-05Preserve the full name of the file, so that '-c -o foo.pic.o' producesNick Lewycky
foo.pic.gcno instead of foo.gcno. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@130899 91177308-0d34-0410-b5e6-96231b3b80d8
2011-05-05Change cycle detection to be based off of a warning flag.Sean Hunt
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@130898 91177308-0d34-0410-b5e6-96231b3b80d8
2011-05-04Record where the GCOV data files should be placed.Nick Lewycky
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@130866 91177308-0d34-0410-b5e6-96231b3b80d8
2011-05-04Implement a better version of delegating constructor cycle detection.Sean Hunt
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. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@130836 91177308-0d34-0410-b5e6-96231b3b80d8
2011-05-02When using -std= flag added check to make sure language and standard are ↵Chad Rosier
compatable git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@130710 91177308-0d34-0410-b5e6-96231b3b80d8
2011-04-30Implement -fno-dwarf2-cfi-asm.Rafael Espindola
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@130616 91177308-0d34-0410-b5e6-96231b3b80d8
2011-04-30Removed redundant case statementsChad Rosier
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@130564 91177308-0d34-0410-b5e6-96231b3b80d8
2011-04-29Add -Oz option and use it to set the inline threshold to 25.Bob Wilson
Radar 9333566. Patch by Chad Rosier! git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@130554 91177308-0d34-0410-b5e6-96231b3b80d8
2011-04-23Move all of the logic for __DEPRECATED to the driver based on commentsChandler Carruth
from dgregor. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@130066 91177308-0d34-0410-b5e6-96231b3b80d8
2011-04-23Fix Clang's __DEPRECATED define to be controled by -Wdeprecated. ThisChandler Carruth
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. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@130055 91177308-0d34-0410-b5e6-96231b3b80d8
2011-04-23There were some frustrating problems with the implementation ofChandler Carruth
-Wwrite-strings. First and foremost, once the positive form of the flag was passed, it could never be disabled by passing -Wno-write-strings. Also, the diagnostic engine couldn't in turn use -Wwrite-strings to control diagnostics (as GCC does) because it was essentially hijacked to drive the language semantics. Fix this by giving CC1 a clean '-fconst-strings' flag to enable const-qualified strings in C and ObjC compilations. Corresponding '-fno-const-strings' is also added. Then the driver is taught to introduce '-fconst-strings' in the CC1 command when '-Wwrite-strings' dominates. This entire flag is basically GCC-bug-compatibility driven, so we also match GCC's bug where '-w' doesn't actually disable -Wwrite-strings. I'm open to changing this though as it seems insane. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@130051 91177308-0d34-0410-b5e6-96231b3b80d8
2011-04-22Add -fdelayed-template-parsing option. Using this option all templated ↵Francois Pichet
function definitions are parsed at the end of the translation unit only if it is required by an actual instantiation. As such all the symbols of the TU are available during name lookup. Using this flag is necessary for compatibility with Microsoft template code. This also provides some parsing speed improvement. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@130022 91177308-0d34-0410-b5e6-96231b3b80d8
2011-04-21Wire up the -ftest-coverage and -fprofile-arcs flags to .gcno file emission (atNick Lewycky
compile time) and .gcda emission (at runtime). --coverage enables both. This does not yet add the profile_rt library to the link step if -fprofile-arcs is enabled when linking. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@129956 91177308-0d34-0410-b5e6-96231b3b80d8
2011-04-15Initial work to improve documentation for Clang's diagnostics, from Matthieu ↵Douglas Gregor
Monrocq git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@129614 91177308-0d34-0410-b5e6-96231b3b80d8
2011-04-15fix a bunch of comment typos found by codespell. Patch byChris Lattner
Luis Felipe Strano Moraes! git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@129559 91177308-0d34-0410-b5e6-96231b3b80d8
2011-04-15C1X: add a language standardPeter Collingbourne
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@129553 91177308-0d34-0410-b5e6-96231b3b80d8
2011-04-09Fix a bunch of major problems with __unknown_anytype and properly testJohn McCall
for them. The only major missing feature is references. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@129234 91177308-0d34-0410-b5e6-96231b3b80d8
2011-04-09accept -x objc-cpp-output as an alias for -x objective-c-cpp-output,Chris Lattner
per PR9577 git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@129201 91177308-0d34-0410-b5e6-96231b3b80d8
2011-04-07Frontend: Sketch support for -diagnostic-log-file, which still doesn't do ↵Daniel Dunbar
anything. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@129086 91177308-0d34-0410-b5e6-96231b3b80d8
2011-03-28Integrated-As: Support -Wa,-L when using the integrated assembler.Daniel Dunbar
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@128433 91177308-0d34-0410-b5e6-96231b3b80d8
2011-03-27Flip the default for showing include stacks on notes to false. ThisChandler Carruth
required modifying a few tests that specifically use note include stacks to check the source manager's view of include stacks. I've simply added the flag to these tests for now, they may have to be more substantially changed if we decide to remove support for note include stacks altogether. Also, add a test for include stacks on notes that was supposed to go in with the previous commit. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@128390 91177308-0d34-0410-b5e6-96231b3b80d8
2011-03-27Add an option to suppress include stack printing on note diagnostics.Chandler Carruth
These stacks are often less important than those on primary diagnostics. As the number of notes grows, this becomes increasingly important. The include stack printing is clever and doesn't print stacks for adjacent diagnostics from the same file, but when a note is in between a sequence of errors in a header file, and the notes all refer to some other file, we end up getting a worst-case ping-pong of include stacks that take up a great deal of vertical space. Still, for now, the default behavior isn't changed. We can evaluate user feedback with the flag. Patch by Richard Trieu, a couple of style tweaks from me. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@128371 91177308-0d34-0410-b5e6-96231b3b80d8
2011-03-22Frontend: Add a more explicit -backend-option flag for passing backend commandDaniel Dunbar
line options, instead of leveraging the blanket -mllvm option. - This allows using the frontend itself without requiring the backend have those options available (i.e., if the target wasn't built). git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@128087 91177308-0d34-0410-b5e6-96231b3b80d8
2011-03-18Add support for language-specific address spaces. On top of that,Peter Collingbourne
add support for the OpenCL __private, __local, __constant and __global address spaces, as well as the __read_only, _read_write and __write_only image access specifiers. Patch originally by ARM; language-specific address space support by myself. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@127915 91177308-0d34-0410-b5e6-96231b3b80d8
2011-03-18Lexer: Add extremely limited support for -traditional-cpp, ignoring BCPLDaniel Dunbar
comments. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@127910 91177308-0d34-0410-b5e6-96231b3b80d8
2011-03-18The Darwin kernel does not provide useful guard variable support.John McCall
Issue this as an IR-gen error; it's not really worthwhile doing this "right", i.e. in Sema, because IR gen knows a lot of tricks beyond what the constant evaluator knows. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@127854 91177308-0d34-0410-b5e6-96231b3b80d8
2011-03-16Fix duplicate argument processingSandeep Patel
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@127746 91177308-0d34-0410-b5e6-96231b3b80d8
2011-03-09Introduce '-chain-include' option to specify headers that will be converted ↵Argyrios Kyrtzidis
to chained PCHs in memory without having to use multiple runs and intermediate files. Intended for testing & debugging of chained PCH. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@127339 91177308-0d34-0410-b5e6-96231b3b80d8
2011-03-07Remove the AST printer (-ast-print-xml), which is too incomplete andDouglas Gregor
too low-level to actually be useful but is just interesting enough for people to try to use it (which won't actually work beyond toy examples). To bring back the AST printer, it needs to be: - Complete, covering all of C/C++/Objective-C - Documented, with appropriate Schema against which we can validate the output - Designed for C/C++/Objective-C, not Clang's specific ASTs - Stable across Clang versions - Well-tested git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@127141 91177308-0d34-0410-b5e6-96231b3b80d8
2011-03-01Implement -mrtd which sets the StdCall calling convention to be the defaultRoman Divacky
one. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@126756 91177308-0d34-0410-b5e6-96231b3b80d8
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