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* Fix the layout of bitfields in ms_struct unions: theirJohn McCall2015-08-191-4/+0
| | | | | | | | | | | | | | | alignment is ignored, and they always allocate a complete storage unit. Also, change the dumping of AST record layouts: use the more readable C++-style dumping even in C, include bitfield offset information in the dump, and don't print sizeof/alignof information for fields of record type, since we don't do so for bases or other kinds of field. rdar://22275433 llvm-svn: 245514
* __declspec is not a core Clang language extension. Instead, require ↵Aaron Ballman2015-05-261-2/+2
| | | | | | | -fms-extensions or -fborland to enable the language extension. Note: __declspec is also temporarily enabled when compiling for a CUDA target because there are implementation details relying on __declspec(property) support currently. When those details change, __declspec should be disabled for CUDA targets. llvm-svn: 238238
* [MS-ABI] Drop Special Layout in 64-bit mode.Warren Hunt2014-03-241-1/+1
| | | | | | | | | As of cl.exe version 18, the special layout rules for structs with alignment 16 or greater has been dropped. This patch drops the behavior from clang. This patch also updates the lit tests to reflect the change. llvm-svn: 204674
* [MS-ABI] Update to zero-sized padding algorithmWarren Hunt2014-02-211-1/+36
| | | | | | | | | | Slight change to the way zero-sized sub-objects are tracked in the presence of virtual bases. In addition we correctly distinguish between dsize and nvsize. addresses http://llvm.org/bugs/show_bug.cgi?id=18826 Unit tests are included. llvm-svn: 201832
* MS ABI: Fix some layout testsDavid Majnemer2014-02-151-20/+16
| | | | | | | | Some lines intended to be used for testing x86_64 ABI compatibility were not firing because lines were annotated with the wrong FileCheck prefix: X64 vs 64 llvm-svn: 201454
* Remove the -cxx-abi command-line flag.Hans Wennborg2014-01-141-3/+3
| | | | | | | | | | | | | | | This makes the C++ ABI depend entirely on the target: MS ABI for -win32 triples, Itanium otherwise. It's no longer possible to do weird combinations. To be able to run a test with a specific ABI without constraining it to a specific triple, new substitutions are added to lit: %itanium_abi_triple and %ms_abi_triple can be used to get the current target triple adjusted to the desired ABI. For example, if the test suite is running with the i686-pc-win32 target, %itanium_abi_triple will expand to i686-pc-mingw32. Differential Revision: http://llvm-reviews.chandlerc.com/D2545 llvm-svn: 199250
* [ms-abi] Refactor Microsoft Record LayoutWarren Hunt2014-01-091-512/+542
| | | | | | | | | This patch refactors microsoft record layout to be more "natural". The most dominant change is that vbptrs and vfptrs are injected after the fact. This simplifies the implementation and the math for the offest for the first base/field after the vbptr. llvm-svn: 198818
* [ms-abi] 64-bit fixes for r196549Warren Hunt2013-12-101-1/+27
| | | | | | | | In order to address latent bugs that were easier to expose in 64-bit mode, we move the application of __declspec(align) to before the layout of vbases rather than after. llvm-svn: 196861
* Implements 64 bit microsoft record layout and adds lit tests to cover Warren Hunt2013-10-231-46/+297
| | | | | | | | | it. Also removes all of the microsoft C++ ABI related code from the itanium layout builder. Differential Revision: http://llvm-reviews.chandlerc.com/D2003 llvm-svn: 193290
* Lit tests for Microsoft C++ record layout.Warren Hunt2013-10-141-0/+453
They weren't added with the rest of the microsoft record layout patch due me not doing svn add. llvm-svn: 192612
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