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[Headers] Expand _Unwind_Exception for SEH on MinGW/x86_64 

This matches how GCC defines this struct.

Differential Revision: https://reviews.llvm.org/D50380

llvm-svn: 339170
This commit is contained in:
Martin Storsjo 2018-08-07 20:02:40 +00:00
parent 875f6dae86
commit 1662647995
1 changed files with 4 additions and 0 deletions
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4
clang/lib/Headers/unwind.h
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@ -154,8 +154,12 @@ struct _Unwind_Control_Block {
struct _Unwind_Exception {
_Unwind_Exception_Class exception_class;
_Unwind_Exception_Cleanup_Fn exception_cleanup;
#if !defined (__USING_SJLJ_EXCEPTIONS__) && defined (__SEH__)
_Unwind_Word private_[6];
#else
_Unwind_Word private_1;
_Unwind_Word private_2;
#endif
/* The Itanium ABI requires that _Unwind_Exception objects are "double-word
* aligned". GCC has interpreted this to mean "use the maximum useful
* alignment for the target"; so do we. */