@@ -5723,7 +5723,7 @@ create_vinsn_from_insn_rtx (rtx insn_rtx
rtx
create_copy_of_insn_rtx (rtx insn_rtx)
{
- rtx res;
+ rtx res, link;
if (DEBUG_INSN_P (insn_rtx))
return create_insn_rtx_from_pattern (copy_rtx (PATTERN (insn_rtx)),
@@ -5733,6 +5733,22 @@ create_copy_of_insn_rtx (rtx insn_rtx)
res = create_insn_rtx_from_pattern (copy_rtx (PATTERN (insn_rtx)),
NULL_RTX);
+
+ /* Copy all REG_NOTES except REG_EQUAL/REG_EQUIV and REG_LABEL_OPERAND
+ since mark_jump_label will make them. REG_LABEL_TARGETs are created
+ there too, but are supposed to be sticky, so we copy them. */
+ for (link = REG_NOTES (insn_rtx); link; link = XEXP (link, 1))
+ if (REG_NOTE_KIND (link) != REG_LABEL_OPERAND
+ && REG_NOTE_KIND (link) != REG_EQUAL
+ && REG_NOTE_KIND (link) != REG_EQUIV)
+ {
+ if (GET_CODE (link) == EXPR_LIST)
+ add_reg_note (res, REG_NOTE_KIND (link),
+ copy_insn_1 (XEXP (link, 0)));
+ else
+ add_reg_note (res, REG_NOTE_KIND (link), XEXP (link, 0));
+ }
+
return res;
}
@@ -0,0 +1,17 @@
+/* PR debug/51557 */
+/* { dg-do compile { target powerpc*-*-* ia64-*-* i?86-*-* x86_64-*-* } } */
+/* { dg-options "-Os -fno-asynchronous-unwind-tables -g -fsel-sched-pipelining -fselective-scheduling2" } */
+
+extern int baz (void);
+extern void bar (int, int, int, int, int, int, int);
+
+void
+synth (int *values, int n_values, int ci, int s1, int v, int s2)
+{
+ while (--s1)
+ {
+ int r1 = values[s1];
+ int co = ci ? r1 : baz () < r1;
+ bar (0, n_values, s1, s2, v, co, 0);
+ }
+}