Commit Graph

3 Commits

Author SHA1 Message Date
Hans Wennborg 11b1b8ab36 Remove the -cxx-abi command-line flag.
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

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@199250 91177308-0d34-0410-b5e6-96231b3b80d8
2014-01-14 19:35:09 +00:00
Warren Hunt ed121420c2 [ms-abi] Refactor Microsoft Record Layout
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.



git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@198818 91177308-0d34-0410-b5e6-96231b3b80d8
2014-01-09 00:30:56 +00:00
Warren Hunt 6727dbd52a Microsoft Record Layout: zero sized base after base with vbtbl fix
Microsoft adds an extra byte of padding before laying out zero sized 
non-virtual bases if the non-virtual base before it contains a vbptr.  
This patch adds the same behavior to clang.

Differential Revision: http://llvm-reviews.chandlerc.com/D2106



git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@195158 91177308-0d34-0410-b5e6-96231b3b80d8
2013-11-19 22:11:09 +00:00