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PATCH: PR target/40489: gcc.dg/builtin-unreachable-3.c doesn't work on ia64
- From: "H.J. Lu" <hongjiu dot lu at intel dot com>
- To: gcc-patches at gcc dot gnu dot org
- Cc: sje at cup dot hp dot com
- Date: Thu, 18 Jun 2009 13:54:35 -0700
- Subject: PATCH: PR target/40489: gcc.dg/builtin-unreachable-3.c doesn't work on ia64
- Reply-to: "H.J. Lu" <hjl dot tools at gmail dot com>
Hi,
We may have
(note 15 5 0 NOTE_INSN_DELETED)
as single insn in a function. This patch checks it. OK for trunk?
Thanks.
H.J.
---
2009-06-18 H.J. Lu <hongjiu.lu@intel.com>
PR target/40489
* config/ia64/ia64.c (ia64_reorg): Check NULL insn.
--- gcc/config/ia64/ia64.c.foo 2009-05-26 06:15:27.000000000 -0700
+++ gcc/config/ia64/ia64.c 2009-06-18 13:35:01.000000000 -0700
@@ -9239,20 +9239,24 @@ ia64_reorg (void)
insn = get_last_insn ();
if (! INSN_P (insn))
insn = prev_active_insn (insn);
- /* Skip over insns that expand to nothing. */
- while (GET_CODE (insn) == INSN && get_attr_empty (insn) == EMPTY_YES)
- {
- if (GET_CODE (PATTERN (insn)) == UNSPEC_VOLATILE
- && XINT (PATTERN (insn), 1) == UNSPECV_INSN_GROUP_BARRIER)
- saw_stop = 1;
- insn = prev_active_insn (insn);
- }
- if (GET_CODE (insn) == CALL_INSN)
+ if (insn)
{
- if (! saw_stop)
- emit_insn (gen_insn_group_barrier (GEN_INT (3)));
- emit_insn (gen_break_f ());
- emit_insn (gen_insn_group_barrier (GEN_INT (3)));
+ /* Skip over insns that expand to nothing. */
+ while (GET_CODE (insn) == INSN
+ && get_attr_empty (insn) == EMPTY_YES)
+ {
+ if (GET_CODE (PATTERN (insn)) == UNSPEC_VOLATILE
+ && XINT (PATTERN (insn), 1) == UNSPECV_INSN_GROUP_BARRIER)
+ saw_stop = 1;
+ insn = prev_active_insn (insn);
+ }
+ if (GET_CODE (insn) == CALL_INSN)
+ {
+ if (! saw_stop)
+ emit_insn (gen_insn_group_barrier (GEN_INT (3)));
+ emit_insn (gen_break_f ());
+ emit_insn (gen_insn_group_barrier (GEN_INT (3)));
+ }
}
}