r300: fix temps counting for shader-db stats

RC_FILE_INPUT is pretty much just a RC_FILE_TEMPORARY with an initial
value in it. So we regalloc it the same way we do normal temps, however
for unknown reasons (probably to have a bit more readable shader dumps)
we still keep the RC_FILE_INPUT type even though its the same as
temporary. This is handled correctly when emitting the machine code,
however, it was not taken into account in shader stats.

Signed-off-by: Pavel Ondračka <pavel.ondracka@gmail.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/33817>

src/gallium/drivers/r300/compiler/radeon_compiler.c

@@ -378,7 +378,7 @@ reg_count_callback(void *userdata, struct rc_instruction *inst, rc_register_file
                    unsigned int index, unsigned int mask)
 {
    struct rc_program_stats *s = userdata;
-   if (file == RC_FILE_TEMPORARY)
+   if (file == RC_FILE_TEMPORARY || (s->type == RC_FRAGMENT_PROGRAM && file == RC_FILE_INPUT))
       (int)index > s->num_temp_regs ? s->num_temp_regs = index : 0;
    if (file == RC_FILE_INLINE)
       s->num_inline_literals++;
@@ -391,6 +391,7 @@ rc_get_stats(struct radeon_compiler *c, struct rc_program_stats *s)
 {
    struct rc_instruction *tmp;
    memset(s, 0, sizeof(*s));
+   s->type = c->type;
    unsigned ip = 0;
    int last_begintex = -1;
 

src/gallium/drivers/r300/compiler/radeon_compiler.h

@@ -130,6 +130,7 @@ struct radeon_compiler_pass {
 };
 
 struct rc_program_stats {
+   enum rc_program_type type;
    unsigned num_cycles;
    unsigned num_consts;
    unsigned num_insts;