[Bug ada/20593] [4.0/4.1 Regression] Simple array of string access miscompiled on x86 and x86_64 and PPC

[kenner at vlsi1 dot ultra dot nyu dot edu]

------- Additional Comments From kenner at vlsi1 dot ultra dot nyu dot edu  2005-03-22 22:45 -------
Subject: Re:   [4.0/4.1 Regression] Simple array of string access miscompiled on x86 and x86_64 and PPC

Here's the fix.  Will check in shortly.  Note that the handling of
'Unrestricted_Access in Gigi isn't what the front end expects.  That's a
simple fix that will also fix this problem, but the below is also a good
idea ...

*** varasm.c	22 Mar 2005 01:10:54 -0000	1.485
--- varasm.c	22 Mar 2005 22:04:45 -0000
*************** compute_reloc_for_constant (tree exp)
*** 3363,3366 ****
--- 3363,3367 ----
      case CONVERT_EXPR:
      case NON_LVALUE_EXPR:
+     case VIEW_CONVERT_EXPR:
        reloc = compute_reloc_for_constant (TREE_OPERAND (exp, 0));
        break;
*************** output_addressed_constants (tree exp)
*** 3419,3422 ****
--- 3420,3424 ----
      case CONVERT_EXPR:
      case NON_LVALUE_EXPR:
+     case VIEW_CONVERT_EXPR:
        output_addressed_constants (TREE_OPERAND (exp, 0));
        break;


-- 


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=20593