diff --git a/gcc/gcse.c b/gcc/gcse.c
index 74986a4..45cab70 100644
--- a/gcc/gcse.c
+++ b/gcc/gcse.c
@@ -4437,8 +4437,13 @@ hoist_code (void)
 
 		      /* Create a pseudo-reg to store the result of reaching
 			 expressions into.  Get the mode for the new pseudo
-			 from the mode of the original destination pseudo.  */
-		      if (expr->reaching_reg == NULL)
+			 from the mode of the original destination pseudo.
+
+			 It is important to use new pseudos whenever we
+			 emit a set for it in insert_insn_end_basic below.
+			 This will allow reload to use equivalence for
+			 registers that are set only once.  */
+		      if (!insn_inserted_p)
 			expr->reaching_reg
 			  = gen_reg_rtx_and_attrs (SET_DEST (set));