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expr.c (expand_expr): For {BITFIELD,COMPONENT,ARRAY}_REF...

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* expr.c (expand_expr): For {BITFIELD,COMPONENT,ARRAY}_REF, if the
offset's mode is not ptr_mode, convert it.

From-SVN: r19965
This commit is contained in:
Richard Henderson 1998-05-22 16:03:25 -07:00 committed by Richard Henderson
parent 329745f7c1
commit bd070e1aa9
2 changed files with 29 additions and 3 deletions

5
gcc/ChangeLog

@ -1,3 +1,8 @@
1998-05-23 Richard Henderson <rth@cygnus.com>
* expr.c (expand_expr): For {BITFIELD,COMPONENT,ARRAY}_REF, if the
offset's mode is not ptr_mode, convert it.
1998-05-22 Jason Merrill <jason@yorick.cygnus.com>
* fold-const.c (ssize_binop): New fn.

27
gcc/expr.c

@ -2907,6 +2907,16 @@ expand_assignment (to, from, want_value, suggest_reg)
if (GET_CODE (to_rtx) != MEM)
abort ();
if (GET_MODE (offset_rtx) != ptr_mode)
{
#ifdef POINTERS_EXTEND_UNSIGNED
offset_rtx = convert_to_mode (ptr_mode, offset_rtx, 1);
#else
offset_rtx = convert_to_mode (ptr_mode, offset_rtx, 0);
#endif
}
to_rtx = change_address (to_rtx, VOIDmode,
gen_rtx_PLUS (ptr_mode, XEXP (to_rtx, 0),
force_reg (ptr_mode, offset_rtx)));
@ -3307,7 +3317,7 @@ store_expr (exp, target, want_value)
{
target = protect_from_queue (target, 1);
if (GET_MODE (temp) != GET_MODE (target)
&& GET_MODE (temp) != VOIDmode)
&& GET_MODE (target) != VOIDmode)
{
int unsignedp = TREE_UNSIGNED (TREE_TYPE (exp));
if (dont_return_target)
@ -3673,6 +3683,15 @@ store_constructor (exp, target, cleared)
if (GET_CODE (to_rtx) != MEM)
abort ();
if (GET_MODE (offset_rtx) != ptr_mode)
{
#ifdef POINTERS_EXTEND_UNSIGNED
offset_rtx = convert_to_mode (ptr_mode, offset_rtx, 1);
#else
offset_rtx = convert_to_mode (ptr_mode, offset_rtx, 0);
#endif
}
to_rtx
= change_address (to_rtx, VOIDmode,
gen_rtx_PLUS (ptr_mode, XEXP (to_rtx, 0),
@ -5752,11 +5771,13 @@ expand_expr (exp, target, tmode, modifier)
abort ();
if (GET_MODE (offset_rtx) != ptr_mode)
{
#ifdef POINTERS_EXTEND_UNSIGNED
offset_rtx = convert_to_mode (ptr_mode, offset_rtx, 1);
offset_rtx = convert_to_mode (ptr_mode, offset_rtx, 1);
#else
offset_rtx = convert_to_mode (ptr_mode, offset_rtx, 0);
offset_rtx = convert_to_mode (ptr_mode, offset_rtx, 0);
#endif
}
op0 = change_address (op0, VOIDmode,
gen_rtx_PLUS (ptr_mode, XEXP (op0, 0),