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If a pass occurs in several pass lists...

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If a pass occurs in several pass lists, like pass_cleanup_eh which occurs in
both all_small_ipa_passes and all_passes, make sure all instances of it are
considered for replacement/insertion when ref_pass_instance_number is zero,
not just the instance in the first pass list.

From-SVN: r156961
This commit is contained in:
Duncan Sands 2010-02-22 15:18:10 +01:00 committed by Duncan Sands
parent 9efc83f4ba
commit 669887fc19
2 changed files with 46 additions and 35 deletions
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5
gcc/ChangeLog
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@ -1,3 +1,8 @@
2010-02-22 Duncan Sands <baldrick@free.fr>
* passes.c (register_pass): Always consider all pass lists when
ref_pass_instance_number is zero.
2010-02-22 Richard Guenther <rguenther@suse.de>
PR tree-optimization/42749

24
gcc/passes.c
View File

@ -632,6 +632,8 @@ position_pass (struct register_pass_info *new_pass_info,
void
register_pass (struct register_pass_info *pass_info)
{
bool all_instances, success;
/* The checks below could fail in buggy plugins. Existing GCC
passes should never fail these checks, so we mention plugin in
the messages. */
@ -647,18 +649,23 @@ register_pass (struct register_pass_info *pass_info)
pass_info->pass->name);
/* Try to insert the new pass to the pass lists. We need to check
all three lists as the reference pass could be in one (or all) of
all five lists as the reference pass could be in one (or all) of
them. */
if (!position_pass (pass_info, &all_lowering_passes)
&& !position_pass (pass_info, &all_small_ipa_passes)
&& !position_pass (pass_info, &all_regular_ipa_passes)
&& !position_pass (pass_info, &all_lto_gen_passes)
&& !position_pass (pass_info, &all_passes))
all_instances = pass_info->ref_pass_instance_number == 0;
success = position_pass (pass_info, &all_lowering_passes);
if (!success || all_instances)
success |= position_pass (pass_info, &all_small_ipa_passes);
if (!success || all_instances)
success |= position_pass (pass_info, &all_regular_ipa_passes);
if (!success || all_instances)
success |= position_pass (pass_info, &all_lto_gen_passes);
if (!success || all_instances)
success |= position_pass (pass_info, &all_passes);
if (!success)
fatal_error
("pass %qs not found but is referenced by new pass %qs",
pass_info->reference_pass_name, pass_info->pass->name);
else
{
/* OK, we have successfully inserted the new pass. We need to register
the dump files for the newly added pass and its duplicates (if any).
Because the registration of plugin/backend passes happens after the
@ -687,7 +694,6 @@ register_pass (struct register_pass_info *pass_info)
XDELETE (added_pass_nodes);
added_pass_nodes = next_node;
}
}
}
/* Construct the pass tree. The sequencing of passes is driven by