gcc: backport two patches to fix ICE in dwarf2out_var_location
The first patch fixes the ICE in dwarf2out_var_location, at
dwarf2out.c.
r212171:
* except.c (emit_note_eh_region_end): New helper function.
(convert_to_eh_region_ranges): Use emit_note_eh_region_end to
emit EH_REGION_END note.
* jump.c (cleanup_barriers): Do not split a call and its
corresponding CALL_ARG_LOCATION note.
But it introduced a regression issue:
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=63348
so backport the fix for the regression as well:
r215613:
PR rtl-optimization/63348
* emit-rtl.c (try_split): Do not emit extra barrier.
Signed-off-by: Jackie Huang <jackie.huang@windriver.com> Signed-off-by: Ross Burton <ross.burton@intel.com>
