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-rw-r--r--src/mesa/program/prog_to_nir.c13
1 files changed, 6 insertions, 7 deletions
diff --git a/src/mesa/program/prog_to_nir.c b/src/mesa/program/prog_to_nir.c
index 10ba037d428..0f7601a6868 100644
--- a/src/mesa/program/prog_to_nir.c
+++ b/src/mesa/program/prog_to_nir.c
@@ -858,10 +858,9 @@ setup_registers_and_variables(struct ptn_compile *c)
struct nir_shader *shader = b->shader;
/* Create input variables. */
- const int num_inputs = util_last_bit64(c->prog->info.inputs_read);
- for (int i = 0; i < num_inputs; i++) {
- if (!(c->prog->info.inputs_read & BITFIELD64_BIT(i)))
- continue;
+ uint64_t inputs_read = c->prog->info.inputs_read;
+ while (inputs_read) {
+ const int i = u_bit_scan64(&inputs_read);
nir_variable *var =
nir_variable_create(shader, nir_var_shader_in, glsl_vec4_type(),
@@ -907,9 +906,9 @@ setup_registers_and_variables(struct ptn_compile *c)
int max_outputs = util_last_bit(c->prog->info.outputs_written);
c->output_regs = rzalloc_array(c, nir_register *, max_outputs);
- for (int i = 0; i < max_outputs; i++) {
- if (!(c->prog->info.outputs_written & BITFIELD64_BIT(i)))
- continue;
+ uint64_t outputs_written = c->prog->info.outputs_written;
+ while (outputs_written) {
+ const int i = u_bit_scan64(&outputs_written);
/* Since we can't load from outputs in the IR, we make temporaries
* for the outputs and emit stores to the real outputs at the end of