[PATCH 6/9] sel-sched: Don't mess with register restores

[Segher Boessenkool]

If selective scheduling copies register restores it confuses dwarf2cfi.


2016-06-07  Segher Boessenkool  <seg...@kernel.crashing.org>

        * sel-sched-ir.c (init_global_and_expr_for_insn): Don't copy
        instructions with a REG_CFA_RESTORE note.

---
 gcc/sel-sched-ir.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/gcc/sel-sched-ir.c b/gcc/sel-sched-ir.c
index 83f813a..4a3984a 100644
--- a/gcc/sel-sched-ir.c
+++ b/gcc/sel-sched-ir.c
@@ -3015,6 +3015,7 @@ init_global_and_expr_for_insn (insn_t insn)
           /* TRAP_IF though have an INSN code is control_flow_insn_p ().  */
           || control_flow_insn_p (insn)
           || volatile_insn_p (PATTERN (insn))
+         || find_reg_note (insn, REG_CFA_RESTORE, NULL)
           || (targetm.cannot_copy_insn_p
               && targetm.cannot_copy_insn_p (insn)))
         force_unique_p = true;
-- 
1.9.3