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expr.c (expand_assignment): When have varying-length object, make MEM a BLKmode.

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* expr.c (expand_assignment): When have varying-length object,
	make MEM a BLKmode.
	(expand_expr, case ADDR_EXPR): Use SAVE_EXPR_RTL after putting
	SAVE_EXPR stack in case we had a SUBREG.

From-SVN: r43637
This commit is contained in:
Richard Kenner 2001-06-28 10:16:03 +00:00 committed by Richard Kenner
parent b9b2c33963
commit eeb35b4552
2 changed files with 12 additions and 2 deletions
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7
gcc/ChangeLog
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@ -1,3 +1,10 @@
Thu Jun 28 06:16:45 2001 Richard Kenner <kenner@vlsi1.ultra.nyu.edu>
* expr.c (expand_assignment): When have varying-length object,
make MEM a BLKmode.
(expand_expr, case ADDR_EXPR): Use SAVE_EXPR_RTL after putting
SAVE_EXPR stack in case we had a SUBREG.
Thu Jun 28 10:31:06 CEST 2001 Jan Hubicka <jh@suse.cz> Thu Jun 28 10:31:06 CEST 2001 Jan Hubicka <jh@suse.cz>
* i386.md (cmp?i): Simplify; refuse immediate operand * i386.md (cmp?i): Simplify; refuse immediate operand

7
gcc/expr.c
View File

@ -3810,7 +3810,7 @@ expand_assignment (to, from, want_value, suggest_reg)
unsigned int from_align; unsigned int from_align;
rtx from_rtx = expand_expr_unaligned (from, &from_align); rtx from_rtx = expand_expr_unaligned (from, &from_align);
rtx inner_to_rtx rtx inner_to_rtx
= change_address (to_rtx, VOIDmode, = change_address (to_rtx, BLKmode,
plus_constant (XEXP (to_rtx, 0), plus_constant (XEXP (to_rtx, 0),
bitpos / BITS_PER_UNIT)); bitpos / BITS_PER_UNIT));
@ -7039,7 +7039,10 @@ expand_expr (exp, target, tmode, modifier)
/* If the operand is a SAVE_EXPR, we can deal with this by /* If the operand is a SAVE_EXPR, we can deal with this by
forcing the SAVE_EXPR into memory. */ forcing the SAVE_EXPR into memory. */
if (TREE_CODE (TREE_OPERAND (exp, 0)) == SAVE_EXPR) if (TREE_CODE (TREE_OPERAND (exp, 0)) == SAVE_EXPR)
put_var_into_stack (TREE_OPERAND (exp, 0)); {
put_var_into_stack (TREE_OPERAND (exp, 0));
op0 = SAVE_EXPR_RTL (TREE_OPERAND (exp, 0));
}
else else
{ {
tree nt tree nt