pan/bi: Generalize swizzles to avoid extracts

We'd really rather not emit extracts. We are approaching on a vector IR
anyway which is annoying but really necessary to handle I/O and fp16
correctly. So let's just go all the way and deal with swizzles and masks
within reason; it'll still be somewhat saner in the long-term.

Signed-off-by: Alyssa Rosenzweig <[email protected]>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/4139>

1 files changed, 6 insertions, 0 deletions

diff --git a/src/panfrost/bifrost/bifrost_compile.c b/src/panfrost/bifrost/bifrost_compile.c
index 1c3a0f09db3..79164ac79a7 100644
--- a/src/panfrost/bifrost/bifrost_compile.c
+++ b/src/panfrost/bifrost/bifrost_compile.c
@@ -106,6 +106,9 @@ bi_emit_frag_out(bi_context *ctx, nir_intrinsic_instr *instr)
                 .blend_location = nir_intrinsic_base(instr),
                 .src = {
                         bir_src_index(&instr->src[0])
+                },
+                .swizzle = {
+                        { 0, 1, 2, 3 }
                 }
         };
 
@@ -158,6 +161,9 @@ bi_emit_st_vary(bi_context *ctx, nir_intrinsic_instr *instr)
                 .src = {
                         address.dest,
                         bir_src_index(&instr->src[0])
+                },
+                .swizzle = {
+                        { 0, 1, 2, 3 }
                 }
         };