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ipacp_0.c: New test.

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* gcc.dg/lto/ipacp_0.c: New test.
	* gcc.dg/lto/ipacp_1.c: New test.

	* opts.c (decode_options): Do not disable whopr at ipa_cp.
	* ipa-prop.c (ipa_detect_param_modifications): Walk PHI nodes too.

From-SVN: r159535
This commit is contained in:
Jan Hubicka 2010-05-18 16:37:30 +02:00 • committed by Jan Hubicka
parent 26195ca5a2
commit 80e2a014c8
7 changed files with 49 additions and 8 deletions
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5
gcc/ChangeLog
View file

@ -1,3 +1,8 @@
2010-05-18 Jan Hubicka <jh@suse.cz>
* opts.c (decode_options): Do not disable whopr at ipa_cp.
* ipa-prop.c (ipa_detect_param_modifications): Walk PHI nodes too.
2010-05-18 Steven Bosscher <steven@gcc.gnu.org>
PR lto/44184

2
gcc/doc/invoke.texi
View file

@ -7456,8 +7456,6 @@ that otherwise would not fit in memory. This option enables
Disabled by default.
This option is experimental.
@item -fwpa
@opindex fwpa
This is an internal option used by GCC when compiling with

17
gcc/ipa-prop.c
View file

@ -269,11 +269,18 @@ ipa_detect_param_modifications (struct cgraph_node *node)
func = DECL_STRUCT_FUNCTION (decl);
FOR_EACH_BB_FN (bb, func)
for (gsi = gsi_start_bb (bb); !gsi_end_p (gsi); gsi_next (&gsi))
walk_stmt_load_store_addr_ops (gsi_stmt (gsi), info,
visit_load_for_mod_analysis,
visit_store_addr_for_mod_analysis,
visit_store_addr_for_mod_analysis);
{
for (gsi = gsi_start_bb (bb); !gsi_end_p (gsi); gsi_next (&gsi))
walk_stmt_load_store_addr_ops (gsi_stmt (gsi), info,
visit_load_for_mod_analysis,
visit_store_addr_for_mod_analysis,
visit_store_addr_for_mod_analysis);
for (gsi = gsi_start (phi_nodes (bb)); !gsi_end_p (gsi); gsi_next (&gsi))
walk_stmt_load_store_addr_ops (gsi_stmt (gsi), info,
visit_load_for_mod_analysis,
visit_store_addr_for_mod_analysis,
visit_store_addr_for_mod_analysis);
}
info->modification_analysis_done = 1;
}

1
gcc/opts.c
View file

@ -1150,7 +1150,6 @@ decode_options (unsigned int argc, const char **argv)
if (flag_wpa || flag_ltrans)
{
/* These passes are not WHOPR compatible yet. */
flag_ipa_cp = 0;
flag_ipa_pta = 0;
flag_ipa_struct_reorg = 0;
}

5
gcc/testsuite/ChangeLog
View file

@ -1,3 +1,8 @@
2010-05-18 Jan Hubicka <jh@suse.cz>
* gcc.dg/lto/ipacp_0.c: New test.
* gcc.dg/lto/ipacp_1.c: New test.
2010-05-18 Steven Bosscher <steven@gcc.gnu.org>
PR lto/44184

15
gcc/testsuite/gcc.dg/lto/ipacp_0.c Normal file
View file

@ -0,0 +1,15 @@
/* { dg-lto-options {{ -O1 -fwhopr -fipa-cp -fipa-cp-clone}} } */
/* { dg-lto-do run } */
/* Test that clonning happens and we unify declarations of a from both units. */
const int a = 5;
extern void clone_me (int *);
int
main(void)
{
int i;
for (i=0;i<100;i++)
clone_me ((int *)&a);
return 0;
}

12
gcc/testsuite/gcc.dg/lto/ipacp_1.c Normal file
View file

@ -0,0 +1,12 @@
void abort (void);
extern int a;
__attribute__ ((noinline))
void
clone_me (int *ptr)
{
if (ptr != &a)
abort ();
if (!__builtin_constant_p (ptr != &a))
abort ();
}