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| author | Samuel Pitoiset <samuel.pitoiset@gmail.com> | 2017-12-28 22:55:27 +0100 |
|---|---|---|
| committer | Samuel Pitoiset <samuel.pitoiset@gmail.com> | 2018-01-05 09:51:33 +0100 |
| commit | ec63ab39be0b48550ec6da58537566d0041a628e (patch) | |
| tree | 9485e0325a9279bb27df527f89f4eebcd6fe84e9 | |
| parent | 7643c715278caa8c98246c2359d7a70ecb3b7455 (diff) | |
radv: enable denorms for 64-bit and 16-bit floats
Similar to RadeonSI.
This fixes:
dEQP-VK.image.texel_view_compatible.graphic.basic.attachment_read.bc*r16g16b16a16_sfloat
dEQP-VK.image.extended_usage_bit.attachment_write.r16_sfloat
Signed-off-by: Samuel Pitoiset <samuel.pitoiset@gmail.com>
Reviewed-by: Bas Nieuwenhuizen <bas@basnieuwenhuizen.nl>
| -rw-r--r-- | src/amd/common/ac_nir_to_llvm.c | 14 |
1 files changed, 14 insertions, 0 deletions
diff --git a/src/amd/common/ac_nir_to_llvm.c b/src/amd/common/ac_nir_to_llvm.c index ac0a2e67d40..48e2920a158 100644 --- a/src/amd/common/ac_nir_to_llvm.c +++ b/src/amd/common/ac_nir_to_llvm.c @@ -6892,6 +6892,20 @@ static void ac_compile_llvm_module(LLVMTargetMachineRef tm, /* +3 for scratch wave offset and VCC */ config->num_sgprs = MAX2(config->num_sgprs, shader_info->num_input_sgprs + 3); + + /* Enable 64-bit and 16-bit denormals, because there is no performance + * cost. + * + * If denormals are enabled, all floating-point output modifiers are + * ignored. + * + * Don't enable denormals for 32-bit floats, because: + * - Floating-point output modifiers would be ignored by the hw. + * - Some opcodes don't support denormals, such as v_mad_f32. We would + * have to stop using those. + * - SI & CI would be very slow. + */ + config->float_mode |= V_00B028_FP_64_DENORMS; } static void |