4 Commits

Author	SHA1	Message	Date
Reid Kleckner	0404605dda	Expand aggregate arguments more often on 32-bit Windows ... Before this change, we would pass all non-HFA record arguments on Windows with byval. Byval often blocks optimizations and results in bad code generation. Windows now uses the existing workaround that other x86_32 platforms use. I also expanded the workaround to handle C++ records with constructors on Windows. On non-Windows platforms, we have to keep generating the same LLVM IR prototypes if we want our bitcode to be ABI compatible. Otherwise we will encounter mismatch issues like PR21573. Essentially fixes PR27522 in Clang instead of LLVM. Reviewers: hans Differential Revision: http://reviews.llvm.org/D19756 llvm-svn: 268261	2016-05-02 17:41:07 +00:00
Stephen Lin	4362261b00	CHECK-LABEL-ify some code gen tests to improve diagnostic experience when tests fail. ... llvm-svn: 188447	2013-08-15 06:47:53 +00:00
Timur Iskhodzhanov	8fe501dc0f	Set SRet flags properly in '-cxx-abi microsoft'. ... Also, - abstract out the indirect/in memory/in registers decisions into the CGCXXABI - fix handling of empty struct arguments for '-cxx-abi microsoft' - add/fix tests llvm-svn: 179681	2013-04-17 12:54:10 +00:00
Eli Friedman	a98d1f8ca6	Add some ABI tweaks for i386-pc-win32 triple so that we return structs in an MSVC-compatible way. Patch by Joe Groff. ... llvm-svn: 148992	2012-01-25 22:46:34 +00:00