pan/bi: Implement u{add, sub}_sat

Signed-off-by: Alyssa Rosenzweig <alyssa@collabora.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/9520>

diff --git a/src/panfrost/bifrost/bifrost_compile.c b/src/panfrost/bifrost/bifrost_compile.c
index 727dd30..cea0801 100644 (file)
--- a/src/panfrost/bifrost/bifrost_compile.c
+++ b/src/panfrost/bifrost/bifrost_compile.c
@@ -1897,6 +1897,10 @@ bi_emit_alu(bi_builder *b, nir_alu_instr *instr)
                 bi_iadd_to(b, nir_type_int, sz, dst, s0, s1, true);
                 break;
 
+        case nir_op_uadd_sat:
+                bi_iadd_to(b, nir_type_uint, sz, dst, s0, s1, true);
+                break;
+
         case nir_op_ihadd:
                 bi_hadd_to(b, nir_type_int, sz, dst, s0, s1, BI_ROUND_RTN);
                 break;
@@ -1913,6 +1917,10 @@ bi_emit_alu(bi_builder *b, nir_alu_instr *instr)
                 bi_isub_to(b, nir_type_int, sz, dst, s0, s1, true);
                 break;
 
+        case nir_op_usub_sat:
+                bi_isub_to(b, nir_type_uint, sz, dst, s0, s1, true);
+                break;
+
         case nir_op_imul:
                 bi_imul_to(b, sz, dst, s0, s1);
                 break;