+2005-07-10 John David Anglin <dave.anglin@nrc-cnrc.gc.ca>
+
+ PR middle-end/22239
+ PR target/20126
+ * loop.c (loop_givs_rescan): Use expand_simple_binop instead of
+ gen_rtx_MINUS to handle non-replaceable (plus ((x) (const)).
+
2005-07-07 Daniel Berlin <dberlin@dberlin.org>
* tree-ssa-structalias.c (struct variable_info): Heapify complex.
v->new_reg));
else if (GET_CODE (*v->location) == PLUS
&& REG_P (XEXP (*v->location, 0))
- && REG_P (v->new_reg)
&& CONSTANT_P (XEXP (*v->location, 1)))
- loop_insn_emit_before (loop, 0, v->insn,
- gen_move_insn (XEXP (*v->location, 0),
- gen_rtx_MINUS
- (GET_MODE (*v->location),
- v->new_reg,
- XEXP (*v->location, 1))));
+ {
+ rtx tem;
+ start_sequence ();
+ tem = expand_simple_binop (GET_MODE (*v->location), MINUS,
+ v->new_reg, XEXP (*v->location, 1),
+ NULL_RTX, 0, OPTAB_LIB_WIDEN);
+ emit_move_insn (XEXP (*v->location, 0), tem);
+ tem = get_insns ();
+ end_sequence ();
+ loop_insn_emit_before (loop, 0, v->insn, tem);
+ }
else
{
/* If it wasn't a reg, create a pseudo and use that. */