procyberian/gcc
1
0
Fork 0
Code Issues Pull requests Projects Releases Packages Wiki Activity Actions

re PR rtl-optimization/22239 (i-cobol.adb:482: error: unrecognizable insn)

Browse source 
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)).

From-SVN: r101863
This commit is contained in:
John David Anglin 2005-07-11 03:56:12 +00:00 • committed by John David Anglin
parent b5efa47076
commit b1b0d9acec
2 changed files with 18 additions and 7 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

7
gcc/ChangeLog
View file

@ -1,3 +1,10 @@
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.

18
gcc/loop.c
View file

@ -5496,14 +5496,18 @@ loop_givs_rescan (struct loop *loop, struct iv_class *bl, rtx *reg_map)
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. */