except.c (convert_from_eh_region_ranges_1): Never mark USE or CLOBBER insns as throwing.

* except.c (convert_from_eh_region_ranges_1): Never mark USE or CLOBBER insns as throwing. From-SVN: r44666

except.c (convert_from_eh_region_ranges_1): Never mark USE or CLOBBER insns as throwing.
* except.c (convert_from_eh_region_ranges_1): Never mark USE or CLOBBER insns as throwing. From-SVN: r44666
d7730f7a · Richard Henderson · a4d3961a · d7730f7a
Commit d7730f7a authored Aug 06, 2001 by Richard Henderson
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gcc/except.c
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--- a/gcc/except.c
+++ b/gcc/except.c
@@ -1240,6 +1240,8 @@ convert_from_eh_region_ranges_1 (pinsns, orig_sp, cur)
 		  /* If we wanted exceptions for non-call insns, then
 		     any may_trap_p instruction could throw.  */
 		  || (flag_non_call_exceptions
+		      && GET_CODE (PATTERN (insn)) != CLOBBER
+		      && GET_CODE (PATTERN (insn)) != USE
 		      && may_trap_p (PATTERN (insn)))))
 	    {
 	      REG_NOTES (insn) = alloc_EXPR_LIST (REG_EH_REGION, GEN_INT (cur),