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2013-01-17Format strings: correct signedness if already correcting width (%d,%u).Jordan Rose
It is valid to do this: printf("%u", (int)x); But if we see this: printf("%lu", (int)x); ...our fixit should suggest %d, not %u. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@172739 91177308-0d34-0410-b5e6-96231b3b80d8
2013-01-17Add some semantic checks for OpenCL. Variadic macros, VLAs and bitfields are ↵Joey Gouly
not supported. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@172732 91177308-0d34-0410-b5e6-96231b3b80d8
2013-01-17Formatter: Get bit tests in ifs right.Nico Weber
It's generally not possible to know if 'a' '*' 'b' is a multiplication expression or a variable declaration with a purely lexer-based approach. The formatter currently uses a heuristic that classifies this token sequence as a multiplication in rhs contexts (after '=' or 'return') and as a declaration else. Because of this, it gets bit tests in ifs, such as "if (a & b)" wrong. However, declarations in ifs always have to be followed by '=', so this patch changes the formatter to classify '&' as an operator if it's at the start of an if statement. Before: if (a& b) if (int* b = f()) Now: if (a & b) if (int* b = f()) git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@172731 91177308-0d34-0410-b5e6-96231b3b80d8
2013-01-17Allow breaking after the trailing const after a function declaration.Daniel Jasper
Before: void aaaaaaaaaaaa(int aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa) const GUARDED_BY( aaaaaaaaaaaaa); After: void aaaaaaaaaaaa(int aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa) const GUARDED_BY(aaaaaaaaaaaaa); git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@172718 91177308-0d34-0410-b5e6-96231b3b80d8
2013-01-17Add initial rough support for synthesizing linker options when passedChandler Carruth
-fopenmp in the link step on Linux. There is probably more tweaking that will need to take place to get good support for linking the relevant libraries on all Linux distributions and/or on other platforms, but this get's the ball moving and allows Clang to build programs which contain OpenMP pragmas that can be safely ignored by a compiler that doesn't implement them, and yet makes direct calls into the OpenMP runtime. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@172715 91177308-0d34-0410-b5e6-96231b3b80d8
2013-01-17Improve handling of comments in static initializers.Daniel Jasper
Also adding more tests. We can now keep the formatting of something like: static SomeType type = { aaaaaaaaaaaaaaaaaaaa, /* comment */ aaaaaaaaaaaaaaaaaaaa /* comment */, /* comment */ aaaaaaaaaaaaaaaaaaaa, aaaaaaaaaaaaaaaaaaaa, // comment aaaaaaaaaaaaaaaaaaaa }; Note that the comment in the first line is handled like a trailing line comment as that is likely what the user intended. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@172711 91177308-0d34-0410-b5e6-96231b3b80d8
2013-01-17Improve -Wreorder to handle cases of anonymous class member orderingDavid Blaikie
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@172707 91177308-0d34-0410-b5e6-96231b3b80d8
2013-01-17Revert most of r172140.Nico Weber
r172140 changed the formatter to produce "-(id) foo" instead of "- (id)foo" in google style, with a link to http://google-styleguide.googlecode.com/svn/trunk/objcguide.xml#Method_Declarations_and_Definitions as reference. But now that I look at that link again, it seems I didn't read it very carefully the first time round. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@172703 91177308-0d34-0410-b5e6-96231b3b80d8
2013-01-17ArrayRef-ize some ctor initializer related APIsDavid Blaikie
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@172701 91177308-0d34-0410-b5e6-96231b3b80d8
2013-01-17Remove some unnecessary castsDavid Blaikie
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@172700 91177308-0d34-0410-b5e6-96231b3b80d8
2013-01-17Suppress all -Wunused-value warnings from macro body expansions.Matt Beaumont-Gay
This is inspired by a number of false positives in real code, including PR14968. I've added test cases reduced from these false positives to test/Sema/unused-expr.c, as well as corresponding test cases that pass the offending expressions as arguments to a no-op macro to ensure that we do warn there. This also removes my previous tweak from r166522/r166534, so that we warn on unused cast expressions in macro arguments. There were several test cases that were using -Wunused-value to test general diagnostic emission features; I changed those to use other warnings or warn on a macro argument expression. I stared at the test case for PR14399 for a while with Richard Smith and we believe the new test case exercises the same codepaths as before. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@172696 91177308-0d34-0410-b5e6-96231b3b80d8
2013-01-17Attempt to work around bug in older GCCs to fix buildbot.Richard Smith
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@172693 91177308-0d34-0410-b5e6-96231b3b80d8
2013-01-17[IRgen] Update modules autolink metadata to use module flags (as now specifiedDaniel Dunbar
in the LangRef). git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@172692 91177308-0d34-0410-b5e6-96231b3b80d8
2013-01-17Implement C++11 semantics for [[noreturn]] attribute. This required splittingRichard Smith
it apart from [[gnu::noreturn]] / __attribute__((noreturn)), since their semantics are not equivalent (for instance, we treat [[gnu::noreturn]] as affecting the function type, whereas [[noreturn]] does not). git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@172691 91177308-0d34-0410-b5e6-96231b3b80d8
2013-01-17Add -Wunsequenced (with compatibility alias -Wsequence-point) to warn onRichard Smith
expressions which have undefined behavior due to multiple unsequenced modifications or an unsequenced modification and use of a variable. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@172690 91177308-0d34-0410-b5e6-96231b3b80d8
2013-01-17Treat hidden Objective-C protocol definitions as if they wereDouglas Gregor
undefined, and don't find methods or protocols within those protocol definitions. This completes <rdar://problem/10634711>. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@172686 91177308-0d34-0410-b5e6-96231b3b80d8
2013-01-17Implement a fixit for -Wmain-return-typeDmitri Gribenko
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@172684 91177308-0d34-0410-b5e6-96231b3b80d8
2013-01-17objC block layout: Patch reorders block layout to Fariborz Jahanian
produce more inline layout metadata. // rdar://12752901 git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@172683 91177308-0d34-0410-b5e6-96231b3b80d8
2013-01-16[objcmt] Rewrite a NSDictionary dictionaryWithObjects:forKeys: to a ↵Argyrios Kyrtzidis
dictionary literal if we can see the elements of the arrays. for example: NSDictionary *dict = [NSDictionary dictionaryWithObjects:[NSArray arrayWithObjects:@"1", @"2", nil] forKeys:[NSArray arrayWithObjects:@"A", @"B", nil]]; --> NSDictionary *dict = @{ @"A" : @"1", @"B" : @"2" }; rdar://12428166 git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@172679 91177308-0d34-0410-b5e6-96231b3b80d8
2013-01-16Delay linkage checks when validating the weakref attribute.Rafael Espindola
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@172678 91177308-0d34-0410-b5e6-96231b3b80d8
2013-01-16Fixes crash when illegal function definitions are deleted or defaulted. ↵Aaron Ballman
Fixes PR14577. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@172676 91177308-0d34-0410-b5e6-96231b3b80d8
2013-01-16Simplify code. No functionality change.Rafael Espindola
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@172673 91177308-0d34-0410-b5e6-96231b3b80d8
2013-01-16Remove unnecessary initialization i Added in r172668.David Blaikie
echristo already fixed this in r172649, but I'll leave the reformatting in since I'm in the blame history for it now anyway. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@172672 91177308-0d34-0410-b5e6-96231b3b80d8
2013-01-16Readd an open paren that was lost while reformatting code.David Blaikie
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@172669 91177308-0d34-0410-b5e6-96231b3b80d8
2013-01-16Fix -Wreorder warning.David Blaikie
Rewrapping courtesy of clang-format. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@172668 91177308-0d34-0410-b5e6-96231b3b80d8
2013-01-16Check for internal weak decls after merging.Rafael Espindola
This fixes pr14946. The problem was that the linkage computation was done too early, so things like "extern int a;" would be given external linkage, even if a previous declaration was static. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@172667 91177308-0d34-0410-b5e6-96231b3b80d8
2013-01-16PR14964: intrinsic headers using non-reserved identifiersDavid Blaikie
Several of the intrinsic headers were using plain non-reserved identifiers. C++11 17.6.4.3.2 [global.names] p1 reservers names containing a double begining with an underscore followed by an uppercase letter for any use. I think I got them all, but open to being corrected. For the most part I didn't bother updating function-like macro parameter names because I don't believe they're subject to any such collission - though some function-like macros already follow this convention (I didn't update them in part because the churn was more significant as several function-like macros use the double underscore prefixed version of the same name as a parameter in their implementation) git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@172666 91177308-0d34-0410-b5e6-96231b3b80d8
2013-01-16Rework the traversal of Objective-C categories and extensions toDouglas Gregor
consider (sub)module visibility. The bulk of this change replaces myriad hand-rolled loops over the linked list of Objective-C categories/extensions attached to an interface declaration with loops using one of the four new category iterator kinds: visible_categories_iterator: Iterates over all visible categories and extensions, hiding any that have their "hidden" bit set. This is by far the most commonly used iterator. known_categories_iterator: Iterates over all categories and extensions, ignoring the "hidden" bit. This tends to be used for redeclaration-like traversals. visible_extensions_iterator: Iterates over all visible extensions, hiding any that have their "hidden" bit set. known_extensions_iterator: Iterates over all extensions, whether they are visible to normal name lookup or not. The effect of this change is that any uses of the visible_ iterators will respect module-import visibility. See the new tests for examples. Note that the old accessors for categories and extensions are gone; there are *Raw() forms for some of them, for those (few) areas of the compiler that have to manipulate the linked list of categories directly. This is generally discouraged. Part two of <rdar://problem/10634711>. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@172665 91177308-0d34-0410-b5e6-96231b3b80d8
2013-01-16Correct order of operands forwarding NEON vfma to LLVM fmaTim Northover
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@172650 91177308-0d34-0410-b5e6-96231b3b80d8
2013-01-16Move initialization of ParsingIfOrElifDirective down next to the macroEric Christopher
initializations to fix Wreorder warning. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@172649 91177308-0d34-0410-b5e6-96231b3b80d8
2013-01-16No longer crashing with an assert when __has_include or __has_include_next ↵Aaron Ballman
is used outside of a preprocessor directive. This fixes PR14837. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@172639 91177308-0d34-0410-b5e6-96231b3b80d8
2013-01-16Teach global selector lookup to ignore hidden methods, which occurDouglas Gregor
when the methods are declared in a submodule that has not yet been imported. Part of <rdar://problem/10634711>. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@172635 91177308-0d34-0410-b5e6-96231b3b80d8
2013-01-16[PCH/Modules] The iterator may become invalidated because a new macro can be ↵Argyrios Kyrtzidis
added while deserializing a macro, make sure to copy/move what we need from it. Fixes clang-x86_64-debian-fast bot. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@172629 91177308-0d34-0410-b5e6-96231b3b80d8
2013-01-16First step in implementation of mips16 and nomips16 attributes.Reed Kotler
Waiting for new llvm attribute code for the next step. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@172626 91177308-0d34-0410-b5e6-96231b3b80d8
2013-01-16Fix a bug where we would move a following line into a comment.Daniel Jasper
Before: Constructor() : a(a), // comment a(a) {} After: Constructor() : a(a), // comment a(a) {} Needed this as a quick fix. Will add more tests for this in a future commit. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@172624 91177308-0d34-0410-b5e6-96231b3b80d8
2013-01-16[preprocessor] Call the MacroUndefined callback even when the macro was not ↵Argyrios Kyrtzidis
defined. Patch by Enea Zaffanella! git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@172623 91177308-0d34-0410-b5e6-96231b3b80d8
2013-01-16Fix parsing error in conditional expressions.Daniel Jasper
We used to incorrectly parse aaaaaa ? aaaaaa(aaaaaa) : aaaaaaaa; Due to an l_paren being followed by a colon, we assumed it to be part of a constructor initializer. Thus, we never found the colon belonging to the conditional expression, marked the line as bing incorrect and did not format it. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@172621 91177308-0d34-0410-b5e6-96231b3b80d8
2013-01-16[PCH/Modules] Change how macro [re]definitions are de/serialized.Argyrios Kyrtzidis
Previously we would serialize the macro redefinitions as a list, part of the identifier, and try to chain them together across modules individually without having the info that they were already chained at definition time. Change this by serializing the macro redefinition chain and then try to synthesize the chain parts across modules. This allows us to correctly pinpoint when 2 different definitions are ambiguous because they came from unrelated modules. Fixes bogus "ambiguous expansion of macro" warning when a macro in a PCH is redefined without undef'ing it first. rdar://13016031 git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@172620 91177308-0d34-0410-b5e6-96231b3b80d8
2013-01-16Improve understanding of unary operators.Daniel Jasper
Before: int x = ** a; After: int x = **a; git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@172619 91177308-0d34-0410-b5e6-96231b3b80d8
2013-01-16Disable inlining of short ifs in Google style.Daniel Jasper
Various reasons seem to speak against it, so I am disabling this for now. Changed tests to still test this option. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@172618 91177308-0d34-0410-b5e6-96231b3b80d8
2013-01-16Add option to avoid "bin-packing" of parameters.Daniel Jasper
"Bin-packing" here means allowing multiple parameters on one line, if a function call/declaration is spread over multiple lines. This is required by the Chromium style guide and probably desired for the Google style guide. Not making changes to LLVM style as I don't have enough data. With this enabled, we format stuff like: aaaaaaaaaaaaaaa(aaaaaaaaaa, aaaaaaaaaa, aaaaaaaaaaaaaaaaaaaaaaa).aaaaaaaaaaaaaaaaaa(); git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@172617 91177308-0d34-0410-b5e6-96231b3b80d8
2013-01-16Add debugging support for split penalties.Manuel Klimek
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@172616 91177308-0d34-0410-b5e6-96231b3b80d8
2013-01-16Use standard llvm Debug.h support for debugging output.Manuel Klimek
Leave a quick "// Uncomment this." hint to enable the debug output in tests. FIXME: figure out whether we want to enable debug command line handling for all tests. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@172608 91177308-0d34-0410-b5e6-96231b3b80d8
2013-01-16Clang Format: Handle missing semicolonAlexander Kornienko
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@172606 91177308-0d34-0410-b5e6-96231b3b80d8
2013-01-16Fix uninitialized bool flag access in SanitizerArgs parserAlexey Samsonov
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@172605 91177308-0d34-0410-b5e6-96231b3b80d8
2013-01-16Calculate the total length of a line up to each token up front.Daniel Jasper
This makes the tedious fitsIntoLimit() method unnecessary and I can replace one hack (constructor initializers) by a slightly better hack. Furthermore, this will enable calculating whether a certain part of a line fits into the limit for future modifications. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@172604 91177308-0d34-0410-b5e6-96231b3b80d8
2013-01-16Change the datastructure for UnwrappedLines.Daniel Jasper
It was quite convoluted leading to us accidentally introducing O(N^2) complexity while copying from UnwrappedLine to AnnotatedLine. We might still want to improve the datastructure in AnnotatedLine (most importantly not put them in a vector where they need to be copied on vector resizing but that will be done as a follow-up. This fixes most of the regression in llvm.org/PR14959. No formatting changes intended. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@172602 91177308-0d34-0410-b5e6-96231b3b80d8
2013-01-16Never merge < and ::, as it produces different tokens.Daniel Jasper
Before: vector<::Type> t; After: vector< ::Type> t; git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@172601 91177308-0d34-0410-b5e6-96231b3b80d8
2013-01-16Remove errors were if statements were incorrectly put on a single line.Daniel Jasper
Before: if (a) // This comment confused clang-format f(); After: if (a) // No more confusion f(); git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@172600 91177308-0d34-0410-b5e6-96231b3b80d8
2013-01-16[analyzer] Add an annotation to allow suppression of direct ivarAnna Zaks
assignment git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@172597 91177308-0d34-0410-b5e6-96231b3b80d8
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