diff options
Diffstat (limited to 'gcc/regclass.c')
| -rw-r--r-- | gcc/regclass.c | 13 |
1 files changed, 13 insertions, 0 deletions
diff --git a/gcc/regclass.c b/gcc/regclass.c index 601b2f797a6..bfb5fe65345 100644 --- a/gcc/regclass.c +++ b/gcc/regclass.c @@ -665,6 +665,7 @@ static int loop_depth; static int loop_cost; +static int n_occurrences PROTO((int, char *)); static void record_reg_classes PROTO((int, int, rtx *, enum machine_mode *, char **, rtx)); static int copy_cost PROTO((rtx, enum machine_mode, @@ -707,6 +708,18 @@ regclass_init () prefclass = 0; } +/* Return the number of times character C occurs in string S. */ +static int +n_occurrences (c, s) + int c; + char *s; +{ + int n = 0; + while (*s) + n += (*s++ == c); + return n; +} + /* This is a pass of the compiler that scans all instructions and calculates the preferred class for each pseudo-register. This information can be accessed later by calling `reg_preferred_class'. |