2 files changed, 11 insertions, 0 deletions
diff --git a/gcc/ChangeLog b/gcc/ChangeLog
index 9ddb3fc..a139a82 100644
--- a/gcc/ChangeLog
+++ b/gcc/ChangeLog
@@ -1,3 +1,8 @@
+2017-10-18  Segher Boessenkool  <segher@kernel.crashing.org>
+
+	PR rtl-optimization/82602
+	* ira.c (rtx_moveable_p): Return false for volatile asm.
+
 2017-10-18  Uros Bizjak  <ubizjak@gmail.com>
 
 	PR target/82580
diff --git a/gcc/ira.c b/gcc/ira.c
index 046ce3b..8c93d3d 100644
--- a/gcc/ira.c
+++ b/gcc/ira.c
@@ -4400,6 +4400,12 @@ rtx_moveable_p (rtx *loc, enum op_type type)
 	 for a reason.  */
       return false;
 
+    case ASM_OPERANDS:
+      /* The same is true for volatile asm: it has unknown side effects, it
+         cannot be moved at will.  */
+      if (MEM_VOLATILE_P (x))
+	return false;
+
     default:
       break;
     }