By default we don't set the rounding mode. We only set round-to-near-even or round-to-zero mode if explicitly set from nir.
v2: Use a single SHADER_OPCODE_RND_MODE opcode taking an immediate with the rounding mode (Curro) Signed-off-by: Jose Maria Casanova Crespo <jmcasan...@igalia.com> Signed-off-by: Alejandro Piñeiro <apinhe...@igalia.com> --- src/intel/compiler/brw_fs_nir.cpp | 8 ++++++++ 1 file changed, 8 insertions(+) diff --git a/src/intel/compiler/brw_fs_nir.cpp b/src/intel/compiler/brw_fs_nir.cpp index a356327c690..7b06cb139d6 100644 --- a/src/intel/compiler/brw_fs_nir.cpp +++ b/src/intel/compiler/brw_fs_nir.cpp @@ -717,6 +717,14 @@ fs_visitor::nir_emit_alu(const fs_builder &bld, nir_alu_instr *instr) inst->saturate = instr->dest.saturate; break; + case nir_op_f2f16_rtne: + case nir_op_f2f16_rtz: + if (instr->op == nir_op_f2f16_rtz) + bld.emit(SHADER_OPCODE_RND_MODE, bld.null_reg_ud(), brw_imm_d(BRW_RND_MODE_RTZ)); + else if (instr->op == nir_op_f2f16_rtne) + bld.emit(SHADER_OPCODE_RND_MODE, bld.null_reg_ud(), brw_imm_d(BRW_RND_MODE_RTNE)); + /* fallthrough */ + case nir_op_f2f16: /* In theory, it would be better to use BRW_OPCODE_F32TO16. Depending * on the HW gen, it is a special hw opcode or just a MOV, and -- 2.11.0 _______________________________________________ mesa-dev mailing list mesa-dev@lists.freedesktop.org https://lists.freedesktop.org/mailman/listinfo/mesa-dev