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re PR rtl-optimization/47036 (ICE: in move_cond_jump, at sel-sched.c:4901 with -fschedule-insns -fselective-scheduling -fno-dce)

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PR rtl-optimization/47036
	* sel-sched-ir.c (fallthru_bb_of_jump): Remove special support for
	unconditional jumps.
	* sel-sched.c (moveup_expr): Ditto.

testsuite:
	* g++.dg/opt/pr47036.C: New.

From-SVN: r168225
This commit is contained in:
Alexander Monakov 2010-12-24 17:19:23 +03:00 committed by Alexander Monakov
parent 07818af47b
commit eb277bf19c
5 changed files with 24 additions and 7 deletions
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7
gcc/ChangeLog
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@ -1,3 +1,10 @@
2010-12-24 Alexander Monakov <amonakov@ispras.ru>
PR rtl-optimization/47036
* sel-sched-ir.c (fallthru_bb_of_jump): Remove special support for
unconditional jumps.
* sel-sched.c (moveup_expr): Ditto.
2010-12-23 Sebastian Pop <sebastian.pop@amd.com>
Richard Guenther <rguenther@suse.de>

3
gcc/sel-sched-ir.c
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@ -4441,9 +4441,6 @@ fallthru_bb_of_jump (rtx jump)
if (!JUMP_P (jump))
return NULL;
if (any_uncondjump_p (jump))
return single_succ (BLOCK_FOR_INSN (jump));
if (!any_condjump_p (jump))
return NULL;

6
gcc/sel-sched.c
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@ -2171,10 +2171,8 @@ moveup_expr (expr_t expr, insn_t through_insn, bool inside_insn_group,
|| ! in_current_region_p (fallthru_bb))
return MOVEUP_EXPR_NULL;
/* And it should be mutually exclusive with through_insn, or
be an unconditional jump. */
if (! any_uncondjump_p (insn)
&& ! sched_insns_conditions_mutex_p (insn, through_insn)
/* And it should be mutually exclusive with through_insn. */
if (! sched_insns_conditions_mutex_p (insn, through_insn)
&& ! DEBUG_INSN_P (through_insn))
return MOVEUP_EXPR_NULL;
}

5
gcc/testsuite/ChangeLog
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@ -1,3 +1,8 @@
2010-12-24 Alexander Monakov <amonakov@ispras.ru>
PR rtl-optimization/47036
* g++.dg/opt/pr47036.C: New.
2010-12-24 Thomas Koenig <tkoenig@gcc.gnu.org>
PR fortran/31821

10
gcc/testsuite/g++.dg/opt/pr47036.C Normal file
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@ -0,0 +1,10 @@
// { dg-do compile { target powerpc*-*-* ia64-*-* x86_64-*-* } }
// { dg-options "-fschedule-insns -fselective-scheduling -fno-dce" }
void foo ()
{
for (;;)
for (;;({break;}));
}