From 7a9b535d8abe27abdaa68cdcb22172a666030d06 Mon Sep 17 00:00:00 2001 From: =?UTF-8?q?J=C3=B8rgen=20Kvalsvik?= Date: Tue, 4 Jun 2024 14:16:22 +0200 Subject: Record edge true/false value for gcov Make gcov aware which edges are the true/false to more accurately reconstruct the CFG. There are plenty of bits left in arc_info and it opens up for richer reporting. gcc/ChangeLog: * gcov-io.h (GCOV_ARC_TRUE): New. (GCOV_ARC_FALSE): New. * gcov.cc (struct arc_info): Add true_value, false_value. (read_graph_file): Read true_value, false_value. * profile.cc (branch_prob): Write GCOV_ARC_TRUE, GCOV_ARC_FALSE. --- gcc/gcov.cc | 8 ++++++++ 1 file changed, 8 insertions(+) (limited to 'gcc/gcov.cc') diff --git a/gcc/gcov.cc b/gcc/gcov.cc index 6f30557..2e4bd9d 100644 --- a/gcc/gcov.cc +++ b/gcc/gcov.cc @@ -117,6 +117,12 @@ struct arc_info /* Loop making arc. */ unsigned int cycle : 1; + /* Is a true arc. */ + unsigned int true_value : 1; + + /* Is a false arc. */ + unsigned int false_value : 1; + /* Links to next arc on src and dst lists. */ struct arc_info *succ_next; struct arc_info *pred_next; @@ -2010,6 +2016,8 @@ read_graph_file (void) arc->on_tree = !!(flags & GCOV_ARC_ON_TREE); arc->fake = !!(flags & GCOV_ARC_FAKE); arc->fall_through = !!(flags & GCOV_ARC_FALLTHROUGH); + arc->true_value = !!(flags & GCOV_ARC_TRUE); + arc->false_value = !!(flags & GCOV_ARC_FALSE); arc->succ_next = src_blk->succ; src_blk->succ = arc; -- cgit v1.1