From 162719b305a713b80afc9df7016f5dfc8d095515 Mon Sep 17 00:00:00 2001
From: hubicka <hubicka@138bc75d-0d04-0410-961f-82ee72b054a4>
Date: Sun, 28 Jan 2007 19:38:39 +0000
Subject: 	* expr.c (emit_block_move_via_movmem,
 emit_block_move_via_libcall): Add 	variant handling histograms; add
 wrapper. 	(clear_storage_via_libcall): Export. 
 (emit_block_move_hints): Break out from ...; add histograms. 
 (emit_block_move): ... this one. 	(clear_storage_hints): Break out from
 ...; add histograms. 	(clear_storage): ... this one. 
 (set_storage_via_memset): Handle histogram. 	* expr.h
 (emit_block_move_via_libcall, emit_block_move_hints): Declare. 
 (clear_storage_hints, clear_storage_via_libcall): Declare. 
 (set_storage_via_setmem): Update prototype. 	* doc/md.texi (movmem,
 setmem): Document new arguments.

	* value-prof.c (dump_histogram_value, tree_find_values_to_profile): Add
	new histograms.
	(stringop_block_profile): New global function.
	(tree_stringops_values_to_profile): Profile block size and alignment.
	* value-prof.h (enum hist_type): add HIST_TYPE_AVERAGE and
	HIST_TYPE_IOR.
	(struct profile_hooks): Add gen_average_profiler and gen_ior_profiler.
	(stringop_block_profile): Declare.
	* builtins.c: Include value-prof.h.
	(expand_builtin_memcpy, expand_builtin_memset): Pass block profile.
	* gcov-ui.h (GCOV_COUNTER_NAMES): Add new counter.
	(GCOV_COUNTER_AVERAGE, GCOV_COUNTER_IOR): New constants.
	(GCOV_COUNTERS, GCOV_LAST_VALUE_COUNTER): Update.
	* profile.c (instrument_values): Add new counters.
	* cfgexpand.c (expand_gimple_basic_block): Propagate histograms to
	calls.
	* tree-profile.c (tree_average_profiler_fn, tree_ior_profiler_fn): New.
	(tree_init_edge_profiler): Build new profilers.
	(tree_gen_average_profiler, tree_gen_ior_profiler): New.
	(pass_tree_profile): Add dump.
	(tree_profile_hooks): Update.
	* Makefile.in (LIBGCOV): Add new constants.
	* libgcov.c (__gcov_merge_ior, __gcov_average_profiler,
	__gcov_ior_profiler): New.
	* i386.md (movmem/setmem expanders): Add new optional arguments.


git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@121270 138bc75d-0d04-0410-961f-82ee72b054a4
---
 gcc/libgcov.c | 36 ++++++++++++++++++++++++++++++++++++
 1 file changed, 36 insertions(+)

(limited to 'gcc/libgcov.c')

diff --git a/gcc/libgcov.c b/gcc/libgcov.c
index 880686eba04..04fc3b2a0d8 100644
--- a/gcc/libgcov.c
+++ b/gcc/libgcov.c
@@ -614,6 +614,18 @@ __gcov_merge_add (gcov_type *counters, unsigned n_counters)
 }
 #endif /* L_gcov_merge_add */
 
+#ifdef L_gcov_merge_ior
+/* The profile merging function that just adds the counters.  It is given
+   an array COUNTERS of N_COUNTERS old counters and it reads the same number
+   of counters from the gcov file.  */
+void
+__gcov_merge_ior (gcov_type *counters, unsigned n_counters)
+{
+  for (; n_counters; counters++, n_counters--)
+    *counters |= gcov_read_counter ();
+}
+#endif
+
 #ifdef L_gcov_merge_single
 /* The profile merging function for choosing the most common value.
    It is given an array COUNTERS of N_COUNTERS old counters and it
@@ -770,6 +782,30 @@ __gcov_indirect_call_profiler (gcov_type* counter, gcov_type value,
 }
 #endif
 
+
+#ifdef L_gcov_average_profiler
+/* Increase corresponding COUNTER by VALUE.  FIXME: Perhaps we want
+   to saturate up.  */
+
+void
+__gcov_average_profiler (gcov_type *counters, gcov_type value)
+{
+  counters[0] += value;
+  counters[1] ++;
+}
+#endif
+
+#ifdef L_gcov_ior_profiler
+/* Increase corresponding COUNTER by VALUE.  FIXME: Perhaps we want
+   to saturate up.  */
+
+void
+__gcov_ior_profiler (gcov_type *counters, gcov_type value)
+{
+  *counters |= value;
+}
+#endif
+
 #ifdef L_gcov_fork
 /* A wrapper for the fork function.  Flushes the accumulated profiling data, so
    that they are not counted twice.  */
-- 
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