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-rw-r--r--gcc/passes.c7
1 files changed, 7 insertions, 0 deletions
diff --git a/gcc/passes.c b/gcc/passes.c
index bea89b6..78ccb47 100644
--- a/gcc/passes.c
+++ b/gcc/passes.c
@@ -105,6 +105,7 @@ Software Foundation, 51 Franklin Street, Fifth Floor, Boston, MA
/* Global variables used to communicate with passes. */
int dump_flags;
bool in_gimple_form;
+bool first_pass_instance;
/* This is called from various places for FUNCTION_DECL, VAR_DECL,
@@ -392,6 +393,8 @@ next_pass_1 (struct tree_opt_pass **list, struct tree_opt_pass *pass)
memcpy (new, pass, sizeof (*new));
new->next = NULL;
+ new->todo_flags_start &= ~TODO_mark_first_instance;
+
/* Indicate to register_dump_files that this pass has duplicates,
and so it should rename the dump file. The first instance will
be -1, and be number of duplicates = -static_pass_number - 1.
@@ -406,6 +409,7 @@ next_pass_1 (struct tree_opt_pass **list, struct tree_opt_pass *pass)
}
else
{
+ pass->todo_flags_start |= TODO_mark_first_instance;
pass->static_pass_number = -1;
*list = pass;
}
@@ -932,6 +936,9 @@ execute_todo (unsigned int flags)
gcc_assert (flags & TODO_update_ssa_any);
#endif
+ /* Inform the pass whether it is the first time it is run. */
+ first_pass_instance = (flags & TODO_mark_first_instance) != 0;
+
do_per_function (execute_function_todo, (void *)(size_t) flags);
/* Always remove functions just as before inlining: IPA passes might be