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2011-06-21Fix some grammar nits in the comments from Nick.Chandler Carruth
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@133571 91177308-0d34-0410-b5e6-96231b3b80d8
2011-06-21Revert r133526 which re-orders the suggestions for -Wparentheses on ?:Chandler Carruth
operators. There is a consistent design of having the "silence the warning" option first. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@133570 91177308-0d34-0410-b5e6-96231b3b80d8
2011-06-21Unbreak the CMake buildSean Hunt
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@133557 91177308-0d34-0410-b5e6-96231b3b80d8
2011-06-21Fix the mangling of dependent-scope decl ref expressions so that theyJohn McCall
use the unresolved-name production correctly. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@133554 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
2011-06-21Driver/Darwin: Fixup version check for -object_path_lto support.Daniel Dunbar
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@133548 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
2011-06-21Driver/Darwin: When invoking the linker, automatically pass -object_path_lto soDaniel Dunbar
that the linker has a place to put the temporary object file and can leave it around (for the driver to clean up). This is important so that the object file references in the debug info are preserved for possible use by dsymutil. - <rdar://problem/8294279> executable has no debug symbols when compiled with LTO git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@133543 91177308-0d34-0410-b5e6-96231b3b80d8
2011-06-21Driver: Factor out IsUsingLTO helper function.Daniel Dunbar
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@133542 91177308-0d34-0410-b5e6-96231b3b80d8
2011-06-21[arcmt] Merge 'removeEmptyStatements' and 'removeDeallocMethod' passes to ↵Argyrios Kyrtzidis
cut down on one compilation pass and increase migration speed. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@133540 91177308-0d34-0410-b5e6-96231b3b80d8
2011-06-21[arcmt] Break apart Transforms.cpp.Argyrios Kyrtzidis
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@133539 91177308-0d34-0410-b5e6-96231b3b80d8
2011-06-21objc-arc: Add support for unbridged cast of Fariborz Jahanian
__builtin___CFStringMakeConstantString and CF typed function calls with explicit cf_returns_retained/cf_returns_not_retained attributes. // rdar://9544832 git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@133535 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
2011-06-21IRgen: Add CGOptions to CGTypes.Daniel Dunbar
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@133530 91177308-0d34-0410-b5e6-96231b3b80d8
2011-06-21^cat^cast^Fariborz Jahanian
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@133529 91177308-0d34-0410-b5e6-96231b3b80d8
2011-06-21A few tweaks to MaterializeTemporaryExpr suggested by John.Douglas Gregor
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@133528 91177308-0d34-0410-b5e6-96231b3b80d8
2011-06-21Add comment before CheckObjCARCConversion is called onFariborz Jahanian
Expr value not getting changed by this call. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@133527 91177308-0d34-0410-b5e6-96231b3b80d8
2011-06-21Switch the order of the notes for the parentheses suggested in the caseChandler Carruth
of: a + b ? x : y. In our testing of this flag we've yet to hit a single case where the existing precedence was correct, so we should suggest grouping the ?: first. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@133526 91177308-0d34-0410-b5e6-96231b3b80d8
2011-06-21objc-arc: CodeGen part of unbridged cast of CF types.Fariborz Jahanian
// rdar://9474349 git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@133525 91177308-0d34-0410-b5e6-96231b3b80d8
2011-06-21Fix a crash when a pointer-to-member function is called in the conditionChandler Carruth
expression of '?:'. Add a test case for this pattern, and also test the code that led to the crash in a "working" case as well. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@133523 91177308-0d34-0410-b5e6-96231b3b80d8
2011-06-21Introduce a new AST node describing reference binding to temporaries.Douglas Gregor
MaterializeTemporaryExpr captures a reference binding to a temporary value, making explicit that the temporary value (a prvalue) needs to be materialized into memory so that its address can be used. The intended AST invariant here is that a reference will always bind to a glvalue, and MaterializeTemporaryExpr will be used to convert prvalues into glvalues for that binding to happen. For example, given const int& r = 1.0; The initializer of "r" will be a MaterializeTemporaryExpr whose subexpression is an implicit conversion from the double literal "1.0" to an integer value. IR generation benefits most from this new node, since it was previously guessing (badly) when to materialize temporaries for the purposes of reference binding. There are likely more refactoring and cleanups we could perform there, but the introduction of MaterializeTemporaryExpr fixes PR9565, a case where IR generation would effectively bind a const reference directly to a bitfield in a struct. Addresses <rdar://problem/9552231>. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@133521 91177308-0d34-0410-b5e6-96231b3b80d8
2011-06-21Make more use of llvm::StringRef in various APIs. In particular, don'tJay Foad
use the deprecated forms of llvm::StringMap::GetOrCreateValue(). git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@133515 91177308-0d34-0410-b5e6-96231b3b80d8
2011-06-21Fix typo. From Damjan Marion.Joerg Sonnenberger
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@133511 91177308-0d34-0410-b5e6-96231b3b80d8
2011-06-21De-Unicode-ify in comments.NAKAMURA Takumi
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@133501 91177308-0d34-0410-b5e6-96231b3b80d8
2011-06-21Driver/Darwin: Honor -Xarch_FOO when the arch matches either the toolchain orDaniel Dunbar
the architecture being bound. - Fixes things like -Xarch_armv7. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@133490 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
2011-06-21Canonicalize register names properly.Eric Christopher
Fixes rdar://9425559 git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@133486 91177308-0d34-0410-b5e6-96231b3b80d8
2011-06-21Move additional register names to their own lookup, separate fromEric Christopher
register aliases. Fixes unnecessary renames of clobbers. Fixes part of rdar://9425559 git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@133485 91177308-0d34-0410-b5e6-96231b3b80d8
2011-06-20[arcmt] Always add '__bridge' cast when 'self' is cast to a C pointer. ↵Argyrios Kyrtzidis
rdar://9644061 git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@133480 91177308-0d34-0410-b5e6-96231b3b80d8
2011-06-20[analyzer] Finish size argument checking for strncat (and strncpy).Jordy Rose
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@133472 91177308-0d34-0410-b5e6-96231b3b80d8
2011-06-20objc-arc: allow explicit unbridged casts if the source of the cast is aFariborz Jahanian
message sent to an objc method (or property access) // rdar://9474349 git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@133469 91177308-0d34-0410-b5e6-96231b3b80d8
2011-06-20[arcmt] Find out whether there is an ARC runtime directly from the triple, ↵Argyrios Kyrtzidis
avoid hacky delegation to the driver for that. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@133464 91177308-0d34-0410-b5e6-96231b3b80d8
2011-06-20Warn for un-parenthesized '&' inside '|' (a & b | c), rdar://9553326.Argyrios Kyrtzidis
Patch by Henry Mason with tweaks by me. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@133453 91177308-0d34-0410-b5e6-96231b3b80d8
2011-06-20llvm-gcc treats a tentative definition with a previousFariborz Jahanian
(or follow up) extern declaration with weak_import as an actual definition. make clang follows this behavior. // rdar://9538608 llvm-gcc treats an extern declaration with weak_import git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@133450 91177308-0d34-0410-b5e6-96231b3b80d8
2011-06-20Define va_copy when in C++0x mode; C++0x picked it up from C99.Douglas Gregor
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@133438 91177308-0d34-0410-b5e6-96231b3b80d8
2011-06-20Define __cplusplus to 201103L when in (non-GNU) C++0x mode.Douglas Gregor
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@133437 91177308-0d34-0410-b5e6-96231b3b80d8
2011-06-20Change how PHINodes store their operands.Jay Foad
Change PHINodes to store simple pointers to their incoming basic blocks, instead of full-blown Uses. Note that this loses an optimization in SplitCriticalEdge(), because we can no longer walk the use list of a BasicBlock to find phi nodes. See the comment I removed starting "However, the foreach loop is slow for blocks with lots of predecessors". Extend replaceAllUsesWith() on a BasicBlock to also update any phi nodes in the block's successors. This mimics what would have happened when PHINodes were proper Users of their incoming blocks. (Note that this only works if OldBB->replaceAllUsesWith(NewBB) is called when OldBB still has a terminator instruction, so it still has some successors.) git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@133435 91177308-0d34-0410-b5e6-96231b3b80d8
2011-06-20Fix a problem with the diagnostics of invalid arithmetic with functionChandler Carruth
pointers I found while working on the NULL arithmetic warning. We here always assuming the LHS was the pointer, instead of using the selected pointer expression. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@133428 91177308-0d34-0410-b5e6-96231b3b80d8
2011-06-20Move away from the poor "abstraction" I added to Type. John arguedChandler Carruth
effectively that this abstraction simply doesn't exist. That is highlighted by the fact that by using it we were papering over a more serious error in this warning: the fact that we warned for *invalid* constructs involving member pointers and block pointers. I've fixed the obvious issues with the warning here, but this is confirming an original suspicion that this warning's implementation is flawed. I'm looking into how we can implement this more reasonably. WIP on that front. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@133425 91177308-0d34-0410-b5e6-96231b3b80d8
2011-06-20Remove more unnecessary #include <llvm/ADT/SmallVector.h>Francois Pichet
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@133418 91177308-0d34-0410-b5e6-96231b3b80d8
2011-06-20Update to match mainline ConstantStruct::get API change. Also, use Chris Lattner
ConvertType on InitListExprs as they are being converted. This is needed for a forthcoming patch, and improves the IR generated anyway (see additional type names in testcases). This patch also converts a bunch of std::vector's in CGObjCMac to use C arrays. There are a ton more that should be converted as well. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@133413 91177308-0d34-0410-b5e6-96231b3b80d8
2011-06-20[analyzer] Replace stream-built error message with constant string. No ↵Jordy Rose
functionality change. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@133410 91177308-0d34-0410-b5e6-96231b3b80d8
2011-06-20[analyzer] Re-enable checking for strncpy, along with a new validation of ↵Jordy Rose
the size argument. strncat is not yet up-to-date, but I'm leaving it enabled for now (there shouldn't be any false positives, at least...) git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@133408 91177308-0d34-0410-b5e6-96231b3b80d8
2011-06-20[analyzer] Eliminate "byte string function" from CStringChecker's ↵Jordy Rose
diagnostics, and make it easier to provide custom messages for overflow checking, in preparation for re-enabling strncpy checking. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@133406 91177308-0d34-0410-b5e6-96231b3b80d8
2011-06-20Restructure the API in Type based on a conversation with Richard Smith.Chandler Carruth
This makes 'isPointerLikeType' a little less confusing, and pulls the decay check into a separate interface that is much more clear and concrete. Also, just implement these as logical wrappers around other predicates. Having a switch based implementation isn't likely to be necessary. We can try to optimize them later if they show up on a profile. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@133405 91177308-0d34-0410-b5e6-96231b3b80d8
2011-06-19Add test cases for false positives on -Wnull-arithmetic from RichardChandler Carruth
Trieu, and fix them by checking for array and function types as well as pointer types. I've added a predicate method on Type to bundle together the logic we're using here: isPointerLikeType(). I'd welcome better names for this predicate, this is the best I came up with. It's implemented as a switch to be a touch lighter weight than all the chained isa<...> casts that would result otherwise. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@133383 91177308-0d34-0410-b5e6-96231b3b80d8
2011-06-19Handle decltype keyword in Parser::isDeclarationSpecifier.Francois Pichet
Fixes PR10154. Found by parsing MFC 2010 code with clang. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@133380 91177308-0d34-0410-b5e6-96231b3b80d8
2011-06-18update for api change.Chris Lattner
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@133365 91177308-0d34-0410-b5e6-96231b3b80d8
2011-06-18Remove dead variables.Benjamin Kramer
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@133346 91177308-0d34-0410-b5e6-96231b3b80d8
2011-06-1880 cols.Benjamin Kramer
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@133345 91177308-0d34-0410-b5e6-96231b3b80d8
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