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typeck.c (build_indirect_ref): Heed FLAG_VOLATILE similar to c-typeck.c.

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* typeck.c (build_indirect_ref): Heed FLAG_VOLATILE similar to
        c-typeck.c.

From-SVN: r15197
This commit is contained in:
Brendan Kehoe 1997-09-09 22:20:47 +00:00 committed by Brendan Kehoe
parent ee89446f5b
commit b0d75c1eca
2 changed files with 11 additions and 2 deletions
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5
gcc/cp/ChangeLog
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@ -1,3 +1,8 @@
1997-09-09 Brendan Kehoe <brendan@lisa.cygnus.com>
* typeck.c (build_indirect_ref): Heed FLAG_VOLATILE similar to
c-typeck.c.
Mon Sep 8 02:33:20 1997 Jody Goldberg <jodyg@idt.net>
* decl.c (current_local_enum): Remove static.

8
gcc/cp/typeck.c
View File

@ -2048,6 +2048,7 @@ build_indirect_ref (ptr, errorstring)
if (TREE_CODE (type) == POINTER_TYPE || TREE_CODE (type) == REFERENCE_TYPE)
{
if (TREE_CODE (pointer) == ADDR_EXPR
&& !flag_volatile
&& (TYPE_MAIN_VARIANT (TREE_TYPE (TREE_OPERAND (pointer, 0)))
== TYPE_MAIN_VARIANT (TREE_TYPE (type)))
&& (TREE_READONLY (TREE_OPERAND (pointer, 0))
@ -2061,10 +2062,13 @@ build_indirect_ref (ptr, errorstring)
register tree ref = build1 (INDIRECT_REF,
TYPE_MAIN_VARIANT (t), pointer);
/* We *must* set TREE_READONLY when dereferencing a pointer to const,
so that we get the proper error message if the result is used
to assign to. Also, &* is supposed to be a no-op. */
TREE_READONLY (ref) = TYPE_READONLY (t);
TREE_THIS_VOLATILE (ref) = TYPE_VOLATILE (t);
TREE_SIDE_EFFECTS (ref)
= TYPE_VOLATILE (t) || TREE_SIDE_EFFECTS (pointer);
= TYPE_VOLATILE (t) || TREE_SIDE_EFFECTS (pointer) || flag_volatile;
TREE_THIS_VOLATILE (ref) = TYPE_VOLATILE (t);
return ref;
}
}