Turn global 'ggc_force_collect' variable into 'force_collect' parameter to 'ggc_collect'

This simplifies the interface and gets us rid of a global variable.
No change in behavior.

Clean-up for 2004-09-02 CVS commit (Subversion r86974,
Git commit 0772402279c0161fe41784911b52c77e12803c42)
"Better memory statistics, take 2".

	gcc/
	* ggc.h (ggc_collect): Add 'force_collect' parameter.
	* ggc-page.c (ggc_collect): Use that one instead of global
	'ggc_force_collect'.  Adjust all users.
	* doc/gty.texi (Invoking the garbage collector): Update.
	* ggc-internal.h (ggc_force_collect): Remove.
	* ggc-common.c (ggc_force_collect): Likewise.
	* selftest.h (forcibly_ggc_collect): Remove.
	* ggc-tests.c (selftest::forcibly_ggc_collect): Likewise.
	* read-rtl-function.c (test_loading_labels): Adjust.
	* selftest-run-tests.c (run_tests): Likewise.

1 files changed, 4 insertions, 2 deletions

diff --git a/gcc/ggc.h b/gcc/ggc.h
index 9288471..0f640b2 100644
--- a/gcc/ggc.h
+++ b/gcc/ggc.h
@@ -262,8 +262,10 @@ extern const char *ggc_alloc_string (const char *contents, int length
 #define ggc_strdup(S) ggc_alloc_string ((S), -1 MEM_STAT_INFO)
 
 /* Invoke the collector.  Garbage collection occurs only when this
-   function is called, not during allocations.  */
-extern void ggc_collect	(void);
+   function is called, not during allocations.
+   Unless FORCE_COLLECT, an internal heuristic decides whether to actually
+   collect.  */
+extern void ggc_collect (bool force_collect = false);
 
 /* Return unused memory pages to the system.  */
 extern void ggc_trim (void);