vc4: Switch store_output to using nir_lower_io_to_scalar / component.

1 files changed, 3 insertions, 39 deletions

diff --git a/src/gallium/drivers/vc4/vc4_nir_lower_io.c b/src/gallium/drivers/vc4/vc4_nir_lower_io.c
index ad96ef5..3d08b64 100644
--- a/src/gallium/drivers/vc4/vc4_nir_lower_io.c
+++ b/src/gallium/drivers/vc4/vc4_nir_lower_io.c
@@ -29,9 +29,9 @@
  * Walks the NIR generated by TGSI-to-NIR to lower its io intrinsics into
  * something amenable to the VC4 architecture.
  *
- * Currently, it splits outputs, VS inputs, and uniforms into scalars, drops
- * any non-position outputs in coordinate shaders, and fixes up the addressing
- * on indirect uniform loads.  FS input scalarization is handled by
+ * Currently, it splits VS inputs and uniforms into scalars, drops any
+ * non-position outputs in coordinate shaders, and fixes up the addressing on
+ * indirect uniform loads.  FS input and VS output scalarization is handled by
  * nir_lower_io_to_scalar().
  */
 
@@ -319,42 +319,6 @@ vc4_nir_lower_output(struct vc4_compile *c, nir_builder *b,
                 nir_instr_remove(&intr->instr);
                 return;
         }
-
-        /* Color output is lowered by vc4_nir_lower_blend(). */
-        if (c->stage == QSTAGE_FRAG &&
-            (output_var->data.location == FRAG_RESULT_COLOR ||
-             output_var->data.location == FRAG_RESULT_DATA0 ||
-             output_var->data.location == FRAG_RESULT_SAMPLE_MASK)) {
-                nir_intrinsic_set_base(intr, nir_intrinsic_base(intr) * 4);
-                return;
-        }
-
-        /* All TGSI-to-NIR outputs are VEC4. */
-        assert(intr->num_components == 4);
-
-        /* We only accept direct outputs and TGSI only ever gives them to us
-         * with an offset value of 0.
-         */
-        assert(nir_src_as_const_value(intr->src[1]) &&
-               nir_src_as_const_value(intr->src[1])->u32[0] == 0);
-
-        b->cursor = nir_before_instr(&intr->instr);
-
-        for (unsigned i = 0; i < intr->num_components; i++) {
-                nir_intrinsic_instr *intr_comp =
-                        nir_intrinsic_instr_create(c->s, nir_intrinsic_store_output);
-                intr_comp->num_components = 1;
-                nir_intrinsic_set_base(intr_comp,
-                                       nir_intrinsic_base(intr) * 4 + i);
-
-                assert(intr->src[0].is_ssa);
-                intr_comp->src[0] =
-                        nir_src_for_ssa(nir_channel(b, intr->src[0].ssa, i));
-                intr_comp->src[1] = nir_src_for_ssa(nir_imm_int(b, 0));
-                nir_builder_instr_insert(b, &intr_comp->instr);
-        }
-
-        nir_instr_remove(&intr->instr);
 }
 
 static void