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-rw-r--r--src/mesa/drivers/dri/i965/brw_fs_nir.cpp15
1 files changed, 15 insertions, 0 deletions
diff --git a/src/mesa/drivers/dri/i965/brw_fs_nir.cpp b/src/mesa/drivers/dri/i965/brw_fs_nir.cpp
index 9b6093ca1b8..81c72047e25 100644
--- a/src/mesa/drivers/dri/i965/brw_fs_nir.cpp
+++ b/src/mesa/drivers/dri/i965/brw_fs_nir.cpp
@@ -3876,6 +3876,21 @@ fs_visitor::nir_emit_intrinsic(const fs_builder &bld, nir_intrinsic_instr *instr
break;
}
+ case nir_intrinsic_load_channel_num: {
+ fs_reg tmp = bld.vgrf(BRW_REGISTER_TYPE_UW);
+ dest = retype(dest, BRW_REGISTER_TYPE_UD);
+ const fs_builder allbld8 = bld.group(8, 0).exec_all();
+ allbld8.MOV(tmp, brw_imm_v(0x76543210));
+ if (dispatch_width > 8)
+ allbld8.ADD(byte_offset(tmp, 16), tmp, brw_imm_uw(8u));
+ if (dispatch_width > 16) {
+ const fs_builder allbld16 = bld.group(16, 0).exec_all();
+ allbld16.ADD(byte_offset(tmp, 32), tmp, brw_imm_uw(16u));
+ }
+ bld.MOV(dest, tmp);
+ break;
+ }
+
default:
unreachable("unknown intrinsic");
}