function.c (gen_mem_addressof): When changing the RTX from a REG to a MEM...

	* function.c (gen_mem_addressof): When changing the RTX from a REG
	to a MEM, clear MEM_VOLATILE_P which was formerly REG_USERVAR_P.

From-SVN: r80540

gcc/ChangeLog

 2004-04-08  Roger Sayle  <roger@eyesopen.com>
 
+	* function.c (gen_mem_addressof): When changing the RTX from a REG
+	to a MEM, clear MEM_VOLATILE_P which was formerly REG_USERVAR_P.
+
+2004-04-08  Roger Sayle  <roger@eyesopen.com>
+
 	PR target/14888
 	* config/i386/i386.md (truncdfsf2_noop, truncxfsf2_noop,
 	truncxfdf2_noop): Provide dummy "fmov" implementations.

gcc/function.c

@@ -2856,6 +2856,7 @@ gen_mem_addressof (rtx reg, tree decl, int rescan)
   RTX_UNCHANGING_P (XEXP (r, 0)) = RTX_UNCHANGING_P (reg);
 
   PUT_CODE (reg, MEM);
+  MEM_VOLATILE_P (reg) = 0;
   MEM_ATTRS (reg) = 0;
   XEXP (reg, 0) = r;
 
@@ -2888,11 +2889,9 @@ gen_mem_addressof (rtx reg, tree decl, int rescan)
     {
       /* This can only happen during reload.  Clear the same flag bits as
 	 reload.  */
-      MEM_VOLATILE_P (reg) = 0;
       RTX_UNCHANGING_P (reg) = 0;
       MEM_IN_STRUCT_P (reg) = 0;
       MEM_SCALAR_P (reg) = 0;
-      MEM_ATTRS (reg) = 0;
 
       fixup_var_refs (reg, GET_MODE (reg), 0, reg, 0);
     }