------- Comment #2 from jh at suse dot cz 2008-08-08 10:47 -------
Subject: Re: internal compiler error: in emit_unop_insn, at optabs.c:3806
Hi,
this is patch I am testing.
Index: optabs.c
===================================================================
*** optabs.c (revision 138862)
--- optabs.c (working copy)
*************** maybe_emit_unop_insn (int icode, rtx tar
*** 3769,3774 ****
--- 3769,3775 ----
rtx temp;
enum machine_mode mode0 = insn_data[icode].operand[1].mode;
rtx pat;
+ rtx last = get_last_insn ();
temp = target;
*************** maybe_emit_unop_insn (int icode, rtx tar
*** 3782,3788 ****
pat = GEN_FCN (icode) (temp, op0);
if (!pat)
! return false;
if (INSN_P (pat) && NEXT_INSN (pat) != NULL_RTX && code != UNKNOWN)
add_equal_note (pat, temp, code, op0, NULL_RTX);
--- 3783,3792 ----
pat = GEN_FCN (icode) (temp, op0);
if (!pat)
! {
! delete_insns_since (last);
! return false;
! }
if (INSN_P (pat) && NEXT_INSN (pat) != NULL_RTX && code != UNKNOWN)
add_equal_note (pat, temp, code, op0, NULL_RTX);
*************** expand_fix (rtx to, rtx from, int unsign
*** 5157,5162 ****
--- 5161,5167 ----
if (icode != CODE_FOR_nothing)
{
+ rtx last = get_last_insn ();
if (fmode != GET_MODE (from))
from = convert_to_mode (fmode, from, 0);
*************** expand_fix (rtx to, rtx from, int unsign
*** 5170,5180 ****
if (imode != GET_MODE (to))
target = gen_reg_rtx (imode);
! emit_unop_insn (icode, target, from,
! doing_unsigned ? UNSIGNED_FIX : FIX);
! if (target != to)
! convert_move (to, target, unsignedp);
! return;
}
}
--- 5175,5188 ----
if (imode != GET_MODE (to))
target = gen_reg_rtx (imode);
! if (maybe_emit_unop_insn (icode, target, from,
! doing_unsigned ? UNSIGNED_FIX : FIX))
! {
! if (target != to)
! convert_move (to, target, unsignedp);
! return;
! }
! delete_insns_since (last);
}
}
*************** expand_sfix_optab (rtx to, rtx from, con
*** 5382,5387 ****
--- 5390,5396 ----
icode = convert_optab_handler (tab, imode, fmode)->insn_code;
if (icode != CODE_FOR_nothing)
{
+ rtx last = get_last_insn ();
if (fmode != GET_MODE (from))
from = convert_to_mode (fmode, from, 0);
*************** expand_sfix_optab (rtx to, rtx from, con
*** 5389,5395 ****
target = gen_reg_rtx (imode);
if (!maybe_emit_unop_insn (icode, target, from, UNKNOWN))
! return false;
if (target != to)
convert_move (to, target, 0);
return true;
--- 5398,5407 ----
target = gen_reg_rtx (imode);
if (!maybe_emit_unop_insn (icode, target, from, UNKNOWN))
! {
! delete_insns_since (last);
! continue;
! }
if (target != to)
convert_move (to, target, 0);
return true;
--
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=37055
