From: Per Bothner <bothner@gcc.gnu.org>
Date: Tue, 6 Apr 1999 14:27:17 +0000 (-0700)
Subject: parse.y (patch_binop): Don't fold if non-constant and emiting class files.
X-Git-Url: https://git.libre-soc.org/?a=commitdiff_plain;h=d1472141a50b9ba3e1f8552be2b2b69a82801087;p=gcc.git

parse.y (patch_binop): Don't fold if non-constant and emiting class files.

h
	* parse.y (patch_binop):  Don't fold if non-constant and emiting
	class files.

From-SVN: r26214
---

diff --git a/gcc/java/parse.y b/gcc/java/parse.y
index 72eccbffaf3..9a343107e15 100644
--- a/gcc/java/parse.y
+++ b/gcc/java/parse.y
@@ -9370,8 +9370,12 @@ patch_binop (node, wfl_op1, wfl_op2)
   TREE_TYPE (node) = prom_type;
   TREE_SIDE_EFFECTS (node) = TREE_SIDE_EFFECTS (op1) | TREE_SIDE_EFFECTS (op2);
   
-  /* fold does not respect side-effect order as required for Java but not C. */
-  if (! TREE_SIDE_EFFECTS (node))
+  /* fold does not respect side-effect order as required for Java but not C.
+   * Also, it sometimes create SAVE_EXPRs which are bad when emitting
+   * bytecode.
+   */
+  if (flag_emit_class_files ? (TREE_CONSTANT (op1) && TREE_CONSTANT (op2))
+      : ! TREE_SIDE_EFFECTS (node))
     node = fold (node);
   return node;
 }