* cp/class.c (build_vtbl_initializer): Change build_c_cast

[pf3gnuchains/gcc-fork.git] / gcc / emit-rtl.c

diff --git a/gcc/emit-rtl.c b/gcc/emit-rtl.c
index eded815..889064f 100644 (file)
--- a/gcc/emit-rtl.c
+++ b/gcc/emit-rtl.c
@@ -239,15 +239,15 @@ const_double_htab_eq (x, y)
      const void *y;
 {
   rtx a = (rtx)x, b = (rtx)y;
-  size_t i;
 
   if (GET_MODE (a) != GET_MODE (b))
     return 0;
-  for (i = 0; i < sizeof(CONST_DOUBLE_FORMAT)-1; i++)
-    if (XWINT (a, i) != XWINT (b, i))
-      return 0;
-
-  return 1;
+  if (GET_MODE (a) == VOIDmode)
+    return (CONST_DOUBLE_LOW (a) == CONST_DOUBLE_LOW (b)
+           && CONST_DOUBLE_HIGH (a) == CONST_DOUBLE_HIGH (b));
+  else
+    return real_identical (CONST_DOUBLE_REAL_VALUE (a),
+                          CONST_DOUBLE_REAL_VALUE (b));
 }
 
 /* Returns a hash code for X (which is a really a mem_attrs *).  */