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re PR target/37055 (Revision 138835 breaks -msse2 -mfpmath=sse -Os)

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2008-08-09  Jan Hubicka  <jh@suse.cz>

	PR target/37055
	* optabs.c (maybe_emit_unop_insn): Remove produced code if
	expansion failed.
	(expand_fix): Be prepared for expansion to fail.
	(expand_sfix_optab): Remove instructions if expansion failed.

From-SVN: r138916
This commit is contained in:
Jan Hubicka 2008-08-09 23:47:28 +02:00 committed by H.J. Lu
parent 708fa3b5df
commit 5e04ef8f80
2 changed files with 27 additions and 7 deletions
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8
gcc/ChangeLog
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@ -1,3 +1,11 @@
2008-08-09 Jan Hubicka <jh@suse.cz>
PR target/37055
* optabs.c (maybe_emit_unop_insn): Remove produced code if
expansion failed.
(expand_fix): Be prepared for expansion to fail.
(expand_sfix_optab): Remove instructions if expansion failed.
2008-08-09 Anatoly Sokolov <aesok@post.ru>
* config/avr/avr.c (avr_mcu_types): Move the AT43USB320 device to

26
gcc/optabs.c
View File

@ -3769,6 +3769,7 @@ maybe_emit_unop_insn (int icode, rtx target, rtx op0, enum rtx_code code)
rtx temp;
enum machine_mode mode0 = insn_data[icode].operand[1].mode;
rtx pat;
rtx last = get_last_insn ();
temp = target;
@ -3782,7 +3783,10 @@ maybe_emit_unop_insn (int icode, rtx target, rtx op0, enum rtx_code code)
pat = GEN_FCN (icode) (temp, op0);
if (!pat)
return false;
{
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);
@ -5157,6 +5161,7 @@ expand_fix (rtx to, rtx from, int unsignedp)
if (icode != CODE_FOR_nothing)
{
rtx last = get_last_insn ();
if (fmode != GET_MODE (from))
from = convert_to_mode (fmode, from, 0);
@ -5170,11 +5175,14 @@ expand_fix (rtx to, rtx from, int unsignedp)
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;
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);
}
}
@ -5382,6 +5390,7 @@ expand_sfix_optab (rtx to, rtx from, convert_optab tab)
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);
@ -5389,7 +5398,10 @@ expand_sfix_optab (rtx to, rtx from, convert_optab tab)
target = gen_reg_rtx (imode);
if (!maybe_emit_unop_insn (icode, target, from, UNKNOWN))
return false;
{
delete_insns_since (last);
continue;
}
if (target != to)
convert_move (to, target, 0);
return true;