etnaviv: Drop unused num_loops shader stat

The field was never populated (initialized to 0 with a TODO) yet
printed in dump_shader_info(..) and etna_dump_shader(..), giving
the misleading impression that loop counts were tracked. Remove
the field and its consumers.

Signed-off-by: Christian Gmeiner <cgmeiner@igalia.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/41560>

src/gallium/drivers/etnaviv/etnaviv_compiler.h

@@ -101,7 +101,6 @@ struct etna_shader_variant {
 
    mesa_shader_stage stage;
    uint32_t code_size; /* code size in uint32 words */
-   unsigned num_loops;
    unsigned num_temps;
 
    /* ETNA_DIRTY_* flags that, when set in context dirty, mean that the

src/gallium/drivers/etnaviv/etnaviv_compiler_nir.c

@@ -1230,7 +1230,6 @@ etna_compile_shader(struct etna_shader_variant *v)
 
    v->stage = s->info.stage;
    v->uses_discard = s->info.fs.uses_discard;
-   v->num_loops = 0; /* TODO */
    v->vs_id_in_reg = -1;
    v->vs_pos_out_reg = -1;
    v->vs_pointsize_out_reg = -1;

src/gallium/drivers/etnaviv/etnaviv_shader.c

@@ -67,7 +67,6 @@ etna_dump_shader(const struct etna_shader_variant *shader)
 
    etna_disasm(shader->code, shader->code_size, PRINT_RAW);
 
-   printf("num loops: %i\n", shader->num_loops);
    printf("num temps: %i\n", shader->num_temps);
    printf("immediates:\n");
    for (int idx = 0; idx < shader->uniforms.count; ++idx) {
@@ -423,12 +422,11 @@ dump_shader_info(struct etna_shader_variant *v, struct util_debug_callback *debu
 
    util_debug_message(debug, SHADER_INFO,
          "%s shader: %u instructions, %u temps, "
-         "%u immediates, %u loops",
+         "%u immediates",
          etna_shader_stage(v->shader),
          v->code_size / 4,
          v->num_temps,
-         v->uniforms.count,
-         v->num_loops);
+         v->uniforms.count);
 }
 
 bool