broadcom/vc5: Lower unpack_*_4x8 to normal math.

We only have 2x16 unpacking in our ALUs.  To enable this, we also need
lower_fdiv for its new instructions, which had been handled at a higher
level previously.

diff --git a/src/broadcom/compiler/nir_to_vir.c b/src/broadcom/compiler/nir_to_vir.c
index 3b032b7..92ba614 100644 (file)
--- a/src/broadcom/compiler/nir_to_vir.c
+++ b/src/broadcom/compiler/nir_to_vir.c
@@ -1976,6 +1976,9 @@ const nir_shader_compiler_options v3d_nir_options = {
         .lower_pack_snorm_2x16 = true,
         .lower_pack_unorm_4x8 = true,
         .lower_pack_snorm_4x8 = true,
+        .lower_unpack_unorm_4x8 = true,
+        .lower_unpack_snorm_4x8 = true,
+        .lower_fdiv = true,
         .lower_ffma = true,
         .lower_flrp32 = true,
         .lower_fpow = true,