vc4: Fix up the test for whether the unpack can be from r4.

We can do 16a/16b from float as well.  No difference on shader-db.

1 files changed, 2 insertions, 8 deletions

diff --git a/src/gallium/drivers/vc4/vc4_register_allocate.c b/src/gallium/drivers/vc4/vc4_register_allocate.c
index 3ced50f3a44..2a1b6c35d69 100644
--- a/src/gallium/drivers/vc4/vc4_register_allocate.c
+++ b/src/gallium/drivers/vc4/vc4_register_allocate.c
@@ -283,20 +283,14 @@ vc4_register_allocate(struct vc4_context *vc4, struct vc4_compile *c)
                 }
 
                 if (qir_src_needs_a_file(inst)) {
-                        switch (inst->op) {
-                        case QOP_UNPACK_8A_F:
-                        case QOP_UNPACK_8B_F:
-                        case QOP_UNPACK_8C_F:
-                        case QOP_UNPACK_8D_F:
+                        if (qir_is_float_input(inst)) {
                                 /* Special case: these can be done as R4
                                  * unpacks, as well.
                                  */
                                 class_bits[inst->src[0].index] &= (CLASS_BIT_A |
                                                                    CLASS_BIT_R4);
-                                break;
-                        default:
+                        } else {
                                 class_bits[inst->src[0].index] &= CLASS_BIT_A;
-                                break;
                         }
                 }
                 ip++;