2 Commits

Author	SHA1	Message	Date
Michael Liao	db8bc2e5dc	Fix setjmp on models with non-Small code model nor non-Static relocation model ... - MBB address is only valid as an immediate value in Small & Static code/relocation models. On other models, LEA is needed to load IP address of the restore MBB. - A minor fix of MBB in MC lowering is added as well to enable target relocation flag being propagated into MC. llvm-svn: 166084	2012-10-17 02:22:27 +00:00
Michael Liao	a7e5913fde	Add __builtin_setjmp/_longjmp supprt in X86 backend ... - Besides used in SjLj exception handling, __builtin_setjmp/__longjmp is also used as a light-weight replacement of setjmp/longjmp which are used to implementation continuation, user-level threading, and etc. The support added in this patch ONLY addresses this usage and is NOT intended to support SjLj exception handling as zero-cost DWARF exception handling is used by default in X86. llvm-svn: 165989	2012-10-15 22:39:43 +00:00