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expr.c (expand_expr_real_1): Add back code that was not dead.

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2004-08-09  Paolo Bonzini  <bonzini@gnu.org>

	* expr.c (expand_expr_real_1): Add back code that was not dead.

From-SVN: r85742
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Paolo Bonzini 2004-08-10 08:38:29 +00:00 • committed by Paolo Bonzini
parent 6a3203c8e3
commit 25f3e06c7c
2 changed files with 30 additions and 0 deletions
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4
gcc/ChangeLog
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@ -1,3 +1,7 @@
2004-08-09 Paolo Bonzini <bonzini@gnu.org>
* expr.c (expand_expr_real_1): Add back code that was not dead.
2004-08-09 Andrew Pinski <apinski@apple.com>
* c-common.c (c_common_get_alias_set): Set the aliasing set of the type

26
gcc/expr.c
View file

@ -7778,6 +7778,32 @@ expand_expr_real_1 (tree exp, rtx target, enum machine_mode tmode,
return temp;
}
/* If no set-flag instruction, must generate a conditional store
into a temporary variable. Drop through and handle this
like && and ||. */
if (! ignore
&& (target == 0
|| modifier == EXPAND_STACK_PARM
|| ! safe_from_p (target, exp, 1)
/* Make sure we don't have a hard reg (such as function's return
value) live across basic blocks, if not optimizing. */
|| (!optimize && REG_P (target)
&& REGNO (target) < FIRST_PSEUDO_REGISTER)))
target = gen_reg_rtx (tmode != VOIDmode ? tmode : mode);
if (target)
emit_move_insn (target, const0_rtx);
op1 = gen_label_rtx ();
jumpifnot (exp, op1);
if (target)
emit_move_insn (target, const1_rtx);
emit_label (op1);
return ignore ? const0_rtx : target;
case TRUTH_NOT_EXPR:
if (modifier == EXPAND_STACK_PARM)
target = 0;