diff --git a/libs/vkd3d-shader/d3d_asm.c b/libs/vkd3d-shader/d3d_asm.c
index a7609578..9abc2c4d 100644
--- a/libs/vkd3d-shader/d3d_asm.c
+++ b/libs/vkd3d-shader/d3d_asm.c
@@ -346,6 +346,7 @@ static const char * const shader_opcode_names[] =
     [VKD3DSIH_WAVE_OP_UMIN                    ] = "wave_op_umin",
     [VKD3DSIH_WAVE_PREFIX_BIT_COUNT           ] = "wave_prefix_bit_count",
     [VKD3DSIH_WAVE_READ_LANE_AT               ] = "wave_read_lane_at",
+    [VKD3DSIH_WAVE_READ_LANE_FIRST            ] = "wave_read_lane_first",
     [VKD3DSIH_XOR                             ] = "xor",
 };
 
diff --git a/libs/vkd3d-shader/dxil.c b/libs/vkd3d-shader/dxil.c
index e6f24b4e..48b7fff3 100644
--- a/libs/vkd3d-shader/dxil.c
+++ b/libs/vkd3d-shader/dxil.c
@@ -454,6 +454,7 @@ enum dx_intrinsic_opcode
     DX_WAVE_ACTIVE_ALL_EQUAL        = 115,
     DX_WAVE_ACTIVE_BALLOT           = 116,
     DX_WAVE_READ_LANE_AT            = 117,
+    DX_WAVE_READ_LANE_FIRST         = 118,
     DX_WAVE_ACTIVE_OP               = 119,
     DX_WAVE_ACTIVE_BIT              = 120,
     DX_WAVE_PREFIX_OP               = 121,
@@ -4586,6 +4587,8 @@ static enum vkd3d_shader_opcode map_dx_unary_op(enum dx_intrinsic_opcode op)
             return VKD3DSIH_WAVE_ANY_TRUE;
         case DX_WAVE_PREFIX_BIT_COUNT:
             return VKD3DSIH_WAVE_PREFIX_BIT_COUNT;
+        case DX_WAVE_READ_LANE_FIRST:
+            return VKD3DSIH_WAVE_READ_LANE_FIRST;
         default:
             vkd3d_unreachable();
     }
@@ -6271,6 +6274,7 @@ static const struct sm6_dx_opcode_info sm6_dx_op_table[] =
     [DX_WAVE_PREFIX_BIT_COUNT         ] = {"i", "1",    sm6_parser_emit_dx_unary},
     [DX_WAVE_PREFIX_OP                ] = {"n", "Rcc",  sm6_parser_emit_dx_wave_op},
     [DX_WAVE_READ_LANE_AT             ] = {"n", "Ri",   sm6_parser_emit_dx_binary},
+    [DX_WAVE_READ_LANE_FIRST          ] = {"n", "R",    sm6_parser_emit_dx_unary},
 };
 
 static bool sm6_parser_validate_operand_type(struct sm6_parser *sm6, const struct sm6_value *value, char info_type,
diff --git a/libs/vkd3d-shader/vkd3d_shader_private.h b/libs/vkd3d-shader/vkd3d_shader_private.h
index d2a49361..81bc95c2 100644
--- a/libs/vkd3d-shader/vkd3d_shader_private.h
+++ b/libs/vkd3d-shader/vkd3d_shader_private.h
@@ -547,6 +547,7 @@ enum vkd3d_shader_opcode
     VKD3DSIH_WAVE_OP_UMIN,
     VKD3DSIH_WAVE_PREFIX_BIT_COUNT,
     VKD3DSIH_WAVE_READ_LANE_AT,
+    VKD3DSIH_WAVE_READ_LANE_FIRST,
     VKD3DSIH_XOR,
 
     VKD3DSIH_INVALID,