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2012-04-16Generate fpmath metadata when -ffast-math. Note that no optimizations are hookedDuncan Sands
up to this yet. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@154835 91177308-0d34-0410-b5e6-96231b3b80d8
2012-04-16Hexagon V5(Floating Point) support.Sirish Pande
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@154828 91177308-0d34-0410-b5e6-96231b3b80d8
2012-04-16Adjust for LLVM name tweaks requested by Chandler.Duncan Sands
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@154824 91177308-0d34-0410-b5e6-96231b3b80d8
2012-04-16Propagate alignment on lvalues through EmitLValueForField. PR12395.Eli Friedman
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@154789 91177308-0d34-0410-b5e6-96231b3b80d8
2012-04-15Use MDBuilder to help with metadata creation.Duncan Sands
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@154767 91177308-0d34-0410-b5e6-96231b3b80d8
2012-04-15PR12226: don't generate wrong code if a braced string literal is used toRichard Smith
initialize an array of unsigned char. Outside C++11 mode, this bug was benign, and just resulted in us emitting a constant which was double the required length, padded with 0s. In C++11, it resulted in us generating an array whose first element was something like i8 ptrtoint ([n x i8]* @str to i8). git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@154756 91177308-0d34-0410-b5e6-96231b3b80d8
2012-04-14Rename "fpaccuracy" metadata to the more generic "fpmath". That's because I'mDuncan Sands
thinking of generalizing it to be able to specify other freedoms beyond accuracy (such as that NaN's don't have to be respected). I'd like the 3.1 release (the first one with this metadata) to have the more generic name already rather than having to auto-upgrade it in 3.2. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@154745 91177308-0d34-0410-b5e6-96231b3b80d8
2012-04-14Add an AttributedStmt type to represent a statement with C++11 attributesRichard Smith
attached. Since we do not support any attributes which appertain to a statement (yet), testing of this is necessarily quite minimal. Patch by Alexander Kornienko! git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@154723 91177308-0d34-0410-b5e6-96231b3b80d8
2012-04-13Don't enter cleanups for unreachable variables. It's impossible toJohn McCall
jump into these scopes, and the cleanup-entering code sometimes wants to do some operations first (e.g. a GEP), which can leave us with unparented IR. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@154684 91177308-0d34-0410-b5e6-96231b3b80d8
2012-04-13Avoid string thrashing when we can concatenate them in the final buffer.Benjamin Kramer
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@154678 91177308-0d34-0410-b5e6-96231b3b80d8
2012-04-13Step forward with supporting of ARM homogenous aggregates:Anton Korobeynikov
- Handle unions - Handle C++ classes git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@154664 91177308-0d34-0410-b5e6-96231b3b80d8
2012-04-13Implement __atomic_fetch_nand and __atomic_nand_fetch to complete our set ofRichard Smith
GNU __atomic builtins. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@154659 91177308-0d34-0410-b5e6-96231b3b80d8
2012-04-13Fix a trivial oversight with apple-kext static local destructorsJohn McCall
and add a test case. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@154653 91177308-0d34-0410-b5e6-96231b3b80d8
2012-04-13Implement the missing pieces needed to support libstdc++4.7's <atomic>:Richard Smith
__atomic_test_and_set, __atomic_clear, plus a pile of undocumented __GCC_* predefined macros. Implement library fallback for __atomic_is_lock_free and __c11_atomic_is_lock_free, and implement __atomic_always_lock_free. Contrary to their documentation, GCC's __atomic_fetch_add family don't multiply the operand by sizeof(T) when operating on a pointer type. libstdc++ relies on this quirk. Remove this handling for all but the __c11_atomic_fetch_add and __c11_atomic_fetch_sub builtins. Contrary to their documentation, __atomic_test_and_set and __atomic_clear take a first argument of type 'volatile void *', not 'void *' or 'bool *', and __atomic_is_lock_free and __atomic_always_lock_free have an argument of type 'const volatile void *', not 'void *'. With this change, libstdc++4.7's <atomic> passes libc++'s atomic test suite, except for a couple of libstdc++ bugs and some cases where libc++'s test suite tests for properties which implementations have latitude to vary. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@154640 91177308-0d34-0410-b5e6-96231b3b80d8
2012-04-12Fix some i1/i8 confusion within _Atomic(bool) in IR generation, bothDouglas Gregor
in general (such an atomic has boolean representation) and specifically for IR generation of __c11_atomic_init. The latter also means actually using initialization semantics for this initialization, rather than just creating a store. On a related note, make sure we actually put in non-atomic-to-atomic conversions when performing an implicit conversion sequence. IR generation is far too kind here, but we still want the ASTs to make sense. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@154612 91177308-0d34-0410-b5e6-96231b3b80d8
2012-04-12Implement support for 18 of the GNU-compatible __atomic builtins.Richard Smith
This is not quite sufficient for libstdc++'s <atomic>: we still need __atomic_test_and_set and __atomic_clear, and may need a more complete __atomic_is_lock_free implementation. We are also missing an implementation of __atomic_always_lock_free, __atomic_nand_fetch, and __atomic_fetch_nand, but those aren't needed for libstdc++. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@154579 91177308-0d34-0410-b5e6-96231b3b80d8
2012-04-12These functions too have no prototypes. Audited the rest of Sema forEric Christopher
FunctionDecl::Create calls as well. rdar://11079003 git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@154578 91177308-0d34-0410-b5e6-96231b3b80d8
2012-04-12static functions have a need for mangled name debug information too.Eric Christopher
The mangler doesn't like non-prototyped functions so only use a mangled name for prototyped functions. rdar://11079003 git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@154570 91177308-0d34-0410-b5e6-96231b3b80d8
2012-04-12The copy and destroy helper functions aren't prototyped, don't call themEric Christopher
so. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@154569 91177308-0d34-0410-b5e6-96231b3b80d8
2012-04-11Provide, and document, a set of __c11_atomic_* intrinsics to implement C11'sRichard Smith
<stdatomic.h> header. In passing, fix LanguageExtensions to note that C11 and C++11 are no longer "upcoming standards" but are now actually standardized. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@154513 91177308-0d34-0410-b5e6-96231b3b80d8
2012-04-11Make __atomic_init() (soon to be __c11_atomic_init()) work with non-scalar ↵David Chisnall
types. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@154507 91177308-0d34-0410-b5e6-96231b3b80d8
2012-04-11Enable debug info for objective c implementations that may not haveEric Christopher
an explicit instance variable. rdar://10590352 git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@154481 91177308-0d34-0410-b5e6-96231b3b80d8
2012-04-10For debug and coverage analysis if we're not optimizing go aheadEric Christopher
and emit a relatively empty block for a plain break statement. This enables us to track where we went through a switch. PR9796 & rdar://11215207 git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@154420 91177308-0d34-0410-b5e6-96231b3b80d8
2012-04-10Express the number of ULPs in fpaccuracy metadata as a real rather than a Duncan Sands
rational number, eg as 2.5 rather than 5, 2. OK'd by Peter Collingbourne. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@154388 91177308-0d34-0410-b5e6-96231b3b80d8
2012-04-10EmitStopPoint already checks if we have debug info.Eric Christopher
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@154384 91177308-0d34-0410-b5e6-96231b3b80d8
2012-04-10Tidy.Eric Christopher
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@154383 91177308-0d34-0410-b5e6-96231b3b80d8
2012-04-09Revert r154321, pending more discussion.David Chisnall
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@154327 91177308-0d34-0410-b5e6-96231b3b80d8
2012-04-09Add -fobjc-trace to emit a call before and after each Objective-C message sendDavid Chisnall
for hooking in code flow visualisation applications. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@154321 91177308-0d34-0410-b5e6-96231b3b80d8
2012-04-08Wire up -fpie and -fPIE to LLVM's newly added TargetOptions. No testChandler Carruth
case as we don't currently have any way of dumping target options or otherwise observing this. Another small step toward fixing PR12380. With this we generate TLS accesses using the static model instead of the dynamic model, but we're still generating suboptimal code under the mistaken assumption that the TLS offset might be greater than 2^32, and therefor not viable as an immediate offset of a segment register. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@154298 91177308-0d34-0410-b5e6-96231b3b80d8
2012-04-08Teach Clang about PIE compilations. This is the first step of PR12380.Chandler Carruth
First, this patch cleans up the parsing of the PIC and PIE family of options in the driver. The existing logic failed to claim arguments all over the place resulting in kludges that marked the options as unused. Instead actually walk all of the arguments and claim them properly. We now treat -f{,no-}{pic,PIC,pie,PIE} as a single set, accepting the last one on the commandline. Previously there were lots of ordering bugs that could creep in due to the nature of the parsing. Let me know if folks would like weird things such as "-fPIE -fno-pic" to turn on PIE, but disable full PIC. This doesn't make any sense to me, but we could in theory support it. Options that seem to have intentional "trump" status (-static, -mkernel, etc) continue to do so and are commented as such. Next, a -pie-level flag is threaded into the frontend, rigged to a language option, and handled preprocessor, setting up the appropriate defines. We'll now have the correct defines when compiling with -fpie. The one place outside of the preprocessor that was inspecting the PIC level (as opposed to the relocation model, which is set and handled separately, yay!) is in the GNU ObjC runtime. I changed it to exactly preserve existing behavior. If folks want to change its behavior in the face of PIE, they can do that in a separate patch. Essentially the only functionality changed here is the preprocessor defines and bug-fixes to the argument management. Tests have been updated and extended to test all of this a bit more thoroughly. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@154291 91177308-0d34-0410-b5e6-96231b3b80d8
2012-04-06Use atexit when __cxa_atexit isn't available instead of adding aJohn McCall
global destructor entry. For some reason this isn't enabled for apple-kexts; it'd be good to have documentation for that. Based on a patch by Nakamura Takumi! git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@154191 91177308-0d34-0410-b5e6-96231b3b80d8
2012-04-06Rename GenerateCXXGlobalDtorFunc to GenerateCXXGlobalDtorsFunc.John McCall
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@154190 91177308-0d34-0410-b5e6-96231b3b80d8
2012-04-06zext ivar offsets if required (GNU runtimes).David Chisnall
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@154175 91177308-0d34-0410-b5e6-96231b3b80d8
2012-04-05Only emit the getter and setter names if they're not the defaultEric Christopher
synthesized ones. Reasonable debug info size reduction for objc. rdar://11179756 git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@154129 91177308-0d34-0410-b5e6-96231b3b80d8
2012-04-05Make the variant of __builtin_shufflevector that takes the shuffle indexes ↵Eli Friedman
as a vector actually usable. Patch by David Neto. PR12465. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@154128 91177308-0d34-0410-b5e6-96231b3b80d8
2012-04-04Fix an oversight: don't run ARC optimization cleanup at -O0.Dan Gohman
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@154052 91177308-0d34-0410-b5e6-96231b3b80d8
2012-04-04Don't crash (assert failure) when generating blocks for C++ types with a ↵David Chisnall
non-const copy constructor. This was caused by the code deciding the number of fields in the byref structure using a different test to the part of the code creating the GEPs into said structure. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@154013 91177308-0d34-0410-b5e6-96231b3b80d8
2012-04-04ErrorUnsupported on array cookies in the MS C++ ABI code;John McCall
patch by Timur Iskhodzhanov. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@153990 91177308-0d34-0410-b5e6-96231b3b80d8
2012-04-04Silence dead store warning, and fix indentation.Ted Kremenek
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@153986 91177308-0d34-0410-b5e6-96231b3b80d8
2012-04-03Change location information for synthesized properties to be at theEric Christopher
property file/line rather than the @synthesize file/line. Avoids some nasty confusing-ness with conflating the file from the scope and the line from the original declaration. Use the current scope location as a separate parameter so that we can match it up better in the line table with the beginning of the scope. Update a couple of testcases accordingly since I had to change that we actually use the passed in location in EmitFunctionStart and for the new metadata parameter and add a new testcase to make sure we've got the right line numbers for synthesized properties. Part of rdar://11026482 git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@153917 91177308-0d34-0410-b5e6-96231b3b80d8
2012-03-30Fix a pair of invalidation bugs when emitting protocol definitionsJohn McCall
in the fragile and non-fragile Mac ObjC runtimes. No useful test case. Fixes rdar://problem/11072576. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@153778 91177308-0d34-0410-b5e6-96231b3b80d8
2012-03-30Make sure we unique static-local decls across multiple emissions ofJohn McCall
the function body, but do so in a way that doesn't make any assumptions about the static local actually having a proper, unique mangling, since apparently we don't do that correctly at all. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@153776 91177308-0d34-0410-b5e6-96231b3b80d8
2012-03-30Revert r153723, and its follow-ups r153728 and r153733.Chandler Carruth
These patches cause us to miscompile and/or reject code with static function-local variables in an extern-C context. Previously, we were papering over this as long as the variables are within the same translation unit, and had not seen any failures in the wild. We still need a proper fix, which involves mangling static locals inside of an extern-C block (as GCC already does), but this patch causes pretty widespread regressions. Firefox, and many other applications no longer build. Lots of test cases have been posted to the list in response to this commit, so there should be no problem reproducing the issues. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@153768 91177308-0d34-0410-b5e6-96231b3b80d8
2012-03-30Do the static-locals thing properly in the face of unions andJohn McCall
other things which might mess with the variable's type. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@153733 91177308-0d34-0410-b5e6-96231b3b80d8
2012-03-30ItaniumCXXABI.cpp: Don't use nullptr. Clang source tree should be ↵NAKAMURA Takumi
pre-c++11-compatible. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@153728 91177308-0d34-0410-b5e6-96231b3b80d8
2012-03-30Revert previous commit changing location information to see if thisEric Christopher
is causing the gdb test failures on the bots. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@153727 91177308-0d34-0410-b5e6-96231b3b80d8
2012-03-30When emitting a static local variable in C++, handleJohn McCall
the case that the variable already exists. Partly this is just protection against people making crazy declarations with custom asm labels or extern "C" names that intentionally collide with the manglings of such variables, but the main reason is that we can actually emit a static local variable twice with the requirement that it match up. There may be other cases with (e.g.) the various nested functions, but the main exemplar is with constructor variants, where we can be forced into double-emitting the function body under certain circumstances like (currently) the presence of virtual bases. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@153723 91177308-0d34-0410-b5e6-96231b3b80d8
2012-03-30Add a note about a missing optimization in the case of virtualJohn McCall
inheritance. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@153722 91177308-0d34-0410-b5e6-96231b3b80d8
2012-03-30Missing piece of r153720: make sure the vtable pointer is handled correctly.Eli Friedman
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@153721 91177308-0d34-0410-b5e6-96231b3b80d8
2012-03-30ConstStructBuilder: fix offset math for base classes so it works correctly ↵Eli Friedman
in general. Found by inspection. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@153720 91177308-0d34-0410-b5e6-96231b3b80d8
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