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re PR rtl-optimization/46585 (ICE: SIGSEGV in vinsn_create (sel-sched-ir.c:1189) with -fno-dce -fschedule-insns -fselective-scheduling)

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PR rtl-optimization/46585
	* sel-sched-ir.c (return_regset_to_pool): Verify that RS is not NULL.
	(vinsn_init): Skip initialization of dependencies for local NOPs.
	(vinsn_delete): Don't try to free regsets for local NOPs.
        (setup_nop_and_exit_insns): Change definition of nop_pattern.

testsuite:
	* gcc.dg/pr46585.c: New.

From-SVN: r167141
This commit is contained in:
Alexander Monakov 2010-11-25 13:05:00 +03:00 • committed by Alexander Monakov
parent d787f788f8
commit 9ef1bf719b
4 changed files with 35 additions and 4 deletions
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8
gcc/ChangeLog
View file

@ -1,3 +1,11 @@
2010-11-25 Alexander Monakov <amonakov@ispras.ru>
PR rtl-optimization/46585
* sel-sched-ir.c (return_regset_to_pool): Verify that RS is not NULL.
(vinsn_init): Skip computation of dependencies for local NOPs.
(vinsn_delete): Don't try to free regsets for local NOPs.
(setup_nop_and_exit_insns): Change definition of nop_pattern.
2010-11-25 Alexander Monakov <amonakov@ispras.ru>
PR rtl-optimization/46602

15
gcc/sel-sched-ir.c
View file

@ -942,6 +942,7 @@ get_clear_regset_from_pool (void)
void
return_regset_to_pool (regset rs)
{
gcc_assert (rs);
regset_pool.diff--;
if (regset_pool.n == regset_pool.s)
@ -1175,6 +1176,9 @@ vinsn_init (vinsn_t vi, insn_t insn, bool force_unique_p)
VINSN_COUNT (vi) = 0;
vi->cost = -1;
if (INSN_NOP_P (insn))
return;
if (DF_INSN_UID_SAFE_GET (INSN_UID (insn)) != NULL)
init_id_from_df (VINSN_ID (vi), insn, force_unique_p);
else
@ -1256,9 +1260,12 @@ vinsn_delete (vinsn_t vi)
{
gcc_assert (VINSN_COUNT (vi) == 0);
return_regset_to_pool (VINSN_REG_SETS (vi));
return_regset_to_pool (VINSN_REG_USES (vi));
return_regset_to_pool (VINSN_REG_CLOBBERS (vi));
if (!INSN_NOP_P (VINSN_INSN_RTX (vi)))
{
return_regset_to_pool (VINSN_REG_SETS (vi));
return_regset_to_pool (VINSN_REG_USES (vi));
return_regset_to_pool (VINSN_REG_CLOBBERS (vi));
}
free (vi);
}
@ -5607,7 +5614,7 @@ setup_nop_and_exit_insns (void)
gcc_assert (nop_pattern == NULL_RTX
&& exit_insn == NULL_RTX);
nop_pattern = gen_nop ();
nop_pattern = constm1_rtx;
start_sequence ();
emit_insn (nop_pattern);

5
gcc/testsuite/ChangeLog
View file

@ -1,3 +1,8 @@
2010-11-25 Alexander Monakov <amonakov@ispras.ru>
PR rtl-optimization/46585
* gcc.dg/pr46585.c: New.
2010-11-24 Richard Henderson <rth@redhat.com>
* lib/target-supports.exp (vect_widen_sum_hi_to_si_pattern,

11
gcc/testsuite/gcc.dg/pr46585.c Normal file
View file

@ -0,0 +1,11 @@
/* { dg-do compile { target powerpc*-*-* ia64-*-* i?86-*-* x86_64-*-* } } */
/* { dg-options "-fno-dce -fschedule-insns -fselective-scheduling" } */
void
foo (void)
{
switch (0)
{
default:
break;
}
}