From b7aed249da1d1b37035ad21efb62f5df5373d2f5 Mon Sep 17 00:00:00 2001
From: miod <miod@openbsd.org>
Date: Sun, 14 Sep 2025 19:35:21 +0000
Subject: [PATCH] Add more barriers for proper basic block computation.

---
 gnu/gcc/gcc/config/m88k/m88k.md | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/gnu/gcc/gcc/config/m88k/m88k.md b/gnu/gcc/gcc/config/m88k/m88k.md
index 929a21baefd..969888c7746 100644
--- a/gnu/gcc/gcc/config/m88k/m88k.md
+++ b/gnu/gcc/gcc/config/m88k/m88k.md
@@ -2805,6 +2805,7 @@
       if (TARGET_CHECK_ZERO_DIV)
 	emit_insn (gen_tcnd_divide_by_zero (op2, join_label));
       emit_jump_insn (gen_jump (join_label));
+      emit_barrier ();
 
       emit_label (label1);			/* constant / positive */
       emit_move_insn (op0, gen_rtx_UDIV (SImode, op1, op2));
@@ -2836,6 +2837,7 @@
 	emit_insn (gen_negsi2 (op0, op0));
 
       emit_jump_insn (gen_jump (join_label));
+      emit_barrier ();
 
       emit_label (label1);			/* positive / constant */
       emit_move_insn (op0, gen_rtx_UDIV (SImode, op1, op2));
@@ -2872,6 +2874,7 @@
 	  emit_barrier ();
 	}
       emit_jump_insn (gen_jump (join_label));
+      emit_barrier ();
 
       emit_label (label2);			/* pos.-or-0 / neg.-or-0 */
       emit_move_insn (op0, gen_rtx_UDIV (SImode, op1, neg_op2));
@@ -2884,6 +2887,7 @@
 
       emit_insn (gen_negsi2 (op0, op0));
       emit_jump_insn (gen_jump (join_label));
+      emit_barrier ();
 
       emit_label (label1);
       emit_insn (gen_negsi2 (neg_op1, op1));
@@ -2893,6 +2897,7 @@
       emit_move_insn (op0, gen_rtx_UDIV (SImode, neg_op1, op2));
       emit_insn (gen_negsi2 (op0, op0));
       emit_jump_insn (gen_jump (join_label));
+      emit_barrier ();
 
       emit_label (label3);			/* positive-or-0 / positive */
       emit_move_insn (op0, gen_rtx_UDIV (SImode, op1, op2));