According to Vulkan spec, the new execution modes affect only correctly rounded SPIR-V instructions, which includes Fract.
Signed-off-by: Samuel Iglesias Gonsálvez <sigles...@igalia.com> --- src/compiler/nir/nir_opcodes.py | 8 +++++++- 1 file changed, 7 insertions(+), 1 deletion(-) diff --git a/src/compiler/nir/nir_opcodes.py b/src/compiler/nir/nir_opcodes.py index 21f6569c888..a8ccb237a65 100644 --- a/src/compiler/nir/nir_opcodes.py +++ b/src/compiler/nir/nir_opcodes.py @@ -156,6 +156,10 @@ def unop_convert(name, out_type, in_type, const_expr, rounding_mode): def unop(name, ty, const_expr): opcode(name, 0, ty, [0], [ty], False, "", const_expr, "") +def unop_rounding_mode(name, ty, const_expr, rounding_mode): + op_name = "{0}{1}".format(name, rounding_mode) + opcode(op_name, 0, ty, [0], [ty], False, "", const_expr, rounding_mode) + def unop_horiz(name, output_size, output_type, input_size, input_type, const_expr): opcode(name, output_size, output_type, [input_size], [input_type], @@ -250,11 +254,13 @@ for src_t in [tint, tuint, tfloat, tbool]: # Unary floating-point rounding operations. - unop("ftrunc", tfloat, "bit_size == 64 ? trunc(src0) : truncf(src0)") unop("fceil", tfloat, "bit_size == 64 ? ceil(src0) : ceilf(src0)") unop("ffloor", tfloat, "bit_size == 64 ? floor(src0) : floorf(src0)") unop("ffract", tfloat, "src0 - (bit_size == 64 ? floor(src0) : floorf(src0))") +unop_rounding_mode("ffract", tfloat, """bit_size == 64 ? _mesa_roundeven(src0 - floor(src0)) : _mesa_roundevenf(src0 - floorf(src0))""", "_rtne") +unop_rounding_mode("ffract", tfloat, "src0 - (bit_size == 64 ? floor(src0) : floorf(src0))", "_rtz") + unop("fround_even", tfloat, "bit_size == 64 ? _mesa_roundeven(src0) : _mesa_roundevenf(src0)") unop("fquantize2f16", tfloat, "(fabs(src0) < ldexpf(1.0, -14)) ? copysignf(0.0f, src0) : _mesa_half_to_float(_mesa_float_to_half(src0))") -- 2.19.1 _______________________________________________ mesa-dev mailing list mesa-dev@lists.freedesktop.org https://lists.freedesktop.org/mailman/listinfo/mesa-dev