Not a functional difference, but register is loaded with a signed immediate (V) and added to a signed type (D) producing a signed result (D).
Also change the type of g0 to allow for compaction. --- src/mesa/drivers/dri/i965/brw_fs.cpp | 4 ++-- src/mesa/drivers/dri/i965/brw_fs_generator.cpp | 2 +- 2 files changed, 3 insertions(+), 3 deletions(-) diff --git a/src/mesa/drivers/dri/i965/brw_fs.cpp b/src/mesa/drivers/dri/i965/brw_fs.cpp index 49323eb..f9c78df 100644 --- a/src/mesa/drivers/dri/i965/brw_fs.cpp +++ b/src/mesa/drivers/dri/i965/brw_fs.cpp @@ -1273,7 +1273,7 @@ fs_visitor::emit_sampleid_setup() if (key->compute_sample_id) { fs_reg t1 = vgrf(glsl_type::int_type); fs_reg t2 = vgrf(glsl_type::int_type); - t2.type = BRW_REGISTER_TYPE_UW; + t2.type = BRW_REGISTER_TYPE_W; /* The PS will be run in MSDISPMODE_PERSAMPLE. For example with * 8x multisampling, subspan 0 will represent sample N (where N @@ -1295,7 +1295,7 @@ fs_visitor::emit_sampleid_setup() * subspan 1, and finally sample 1 of subspan 1. */ abld.exec_all() - .AND(t1, fs_reg(retype(brw_vec1_grf(0, 0), BRW_REGISTER_TYPE_UD)), + .AND(t1, fs_reg(retype(brw_vec1_grf(0, 0), BRW_REGISTER_TYPE_D)), fs_reg(0xc0)); abld.exec_all().SHR(t1, t1, fs_reg(5)); diff --git a/src/mesa/drivers/dri/i965/brw_fs_generator.cpp b/src/mesa/drivers/dri/i965/brw_fs_generator.cpp index 13c495c..9a5992e1 100644 --- a/src/mesa/drivers/dri/i965/brw_fs_generator.cpp +++ b/src/mesa/drivers/dri/i965/brw_fs_generator.cpp @@ -1429,7 +1429,7 @@ fs_generator::generate_set_sample_id(fs_inst *inst, brw_set_default_exec_size(p, BRW_EXECUTE_8); brw_set_default_compression_control(p, BRW_COMPRESSION_NONE); brw_set_default_mask_control(p, BRW_MASK_DISABLE); - struct brw_reg reg = retype(stride(src1, 1, 4, 0), BRW_REGISTER_TYPE_UW); + struct brw_reg reg = stride(src1, 1, 4, 0); if (dispatch_width == 8) { brw_ADD(p, dst, src0, reg); } else if (dispatch_width == 16) { -- 2.4.9 _______________________________________________ mesa-dev mailing list mesa-dev@lists.freedesktop.org http://lists.freedesktop.org/mailman/listinfo/mesa-dev