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re PR tree-optimization/33092 (Using -O1 -fno-tree-salias results in ICE)

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2008-01-22  Manuel Lopez-Ibanez  <manu@gcc.gnu.org>

	PR middle-end/33092
	* tree-pass.h (pass_build_alias): New pass.
	* tree-ssa-alias.c (gate_build_alias): New.
	(pass_build_alias): New.
	* passes.c (init_optimization_passes): Add pass_build_alias after
	pass_create_structure_vars.

testsuite/
	* gcc.dg/pr33092.c: New.

From-SVN: r131717
This commit is contained in:
Manuel López-Ibáñez 2008-01-22 13:27:52 +00:00
parent 80f4129beb
commit f9d023841c
5 changed files with 43 additions and 0 deletions
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9
gcc/ChangeLog
View File

@ -1,3 +1,12 @@
2008-01-22 Manuel Lopez-Ibanez <manu@gcc.gnu.org>
PR middle-end/33092
* tree-pass.h (pass_build_alias): New pass.
* tree-ssa-alias.c (gate_build_alias): New.
(pass_build_alias): New.
* passes.c (init_optimization_passes): Add pass_build_alias after
pass_create_structure_vars.
2008-01-22 Wolfgang Gellerich <gellerich@de.ibm.com>
* config/s390/s390.h (S390_TDC_POSITIVE_NORMALIZED_NUMBER):

4
gcc/passes.c
View File

@ -557,6 +557,10 @@ init_optimization_passes (void)
{
struct tree_opt_pass **p = &pass_all_optimizations.sub;
NEXT_PASS (pass_create_structure_vars);
/* ??? pass_build_alias is a dummy pass that ensures that we
execute TODO_rebuild_alias at this point even if
pass_create_structure_vars was disabled. */
NEXT_PASS (pass_build_alias);
NEXT_PASS (pass_return_slot);
NEXT_PASS (pass_rename_ssa_copies);

5
gcc/testsuite/ChangeLog
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@ -1,3 +1,8 @@
2008-01-22 Manuel Lopez-Ibanez <manu@gcc.gnu.org>
PR middle-end/33092
* gcc.dg/pr33092.c: New.
2008-01-22 Andreas Krebbel <krebbel1@de.ibm.com>
* gcc.target/s390/20020926-1.c: Add -m31 option.

1
gcc/tree-pass.h
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@ -278,6 +278,7 @@ extern struct tree_opt_pass pass_ccp;
extern struct tree_opt_pass pass_phi_only_cprop;
extern struct tree_opt_pass pass_build_ssa;
extern struct tree_opt_pass pass_del_ssa;
extern struct tree_opt_pass pass_build_alias;
extern struct tree_opt_pass pass_dominator;
extern struct tree_opt_pass pass_dce;
extern struct tree_opt_pass pass_dce_loop;

24
gcc/tree-ssa-alias.c
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@ -4252,3 +4252,27 @@ struct tree_opt_pass pass_reset_cc_flags =
0, /* todo_flags_finish */
0 /* letter */
};
static bool
gate_build_alias (void)
{
return !gate_structure_vars();
}
struct tree_opt_pass pass_build_alias =
{
"build_alias", /* name */
gate_build_alias, /* gate */
NULL, /* execute */
NULL, /* sub */
NULL, /* next */
0, /* static_pass_number */
0, /* tv_id */
PROP_cfg | PROP_ssa, /* properties_required */
PROP_alias, /* properties_provided */
0, /* properties_destroyed */
0, /* todo_flags_start */
TODO_rebuild_alias, /* todo_flags_finish */
0 /* letter */
};