[gcc r13-4715] gcov: annotate uncovered branches [PR107537]

[gcc r13-4715] gcov: annotate uncovered branches [PR107537]

[Martin Liska]

https://gcc.gnu.org/g:c263c3eba8953c341cd8ac2d0a5f2b8f38623016

commit r13-4715-gc263c3eba8953c341cd8ac2d0a5f2b8f38623016
Author: Spacetown <michael.foerderer@gmx.de>
Date:   Sun Dec 4 21:03:34 2022 +0100

    gcov: annotate uncovered branches [PR107537]
    
            PR gcov-profile/107537
    
    gcc/ChangeLog:
            * gcov.cc (output_branch_count): Add annotation '(fallthrough)'
            or '(throw)' also to uncovered branches.
    
    Signed-off-by: Michael Förderer <michael.foerderer@gmx.de>

Diff:
---
 gcc/gcov.cc | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/gcc/gcov.cc b/gcc/gcov.cc
index 9cf1071166f..fa1ef7613ad 100644
--- a/gcc/gcov.cc
+++ b/gcc/gcov.cc
@@ -2893,7 +2893,9 @@ output_branch_count (FILE *gcov_file, int ix, const arc_info *arc)
 		 arc->fall_through ? " (fallthrough)"
 		 : arc->is_throw ? " (throw)" : "");
       else
-	fnotice (gcov_file, "branch %2d never executed", ix);
+	fnotice (gcov_file, "branch %2d never executed%s", ix,
+		 (arc->fall_through ? " (fallthrough)"
+		  : arc->is_throw ? " (throw)" : ""));
 
       if (flag_verbose)
 	fnotice (gcov_file, " (BB %d)", arc->dst->id);