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| author | Hans-Kristian Arntzen <hans-kristian.arntzen@arm.com> | 2018-04-11 16:02:02 +0300 |
|---|---|---|
| committer | Hans-Kristian Arntzen <hans-kristian.arntzen@arm.com> | 2018-04-11 16:57:41 +0300 |
| commit | c266429be9b882f1553fcf8c0810e3782b394f97 (patch) | |
| tree | 6f854fc0d44a04d8b57c7bcc52dcda07a91be86f /tests-other | |
| parent | 146ea76f52e214c12c3fdb1bb81c527e3b724543 (diff) | |
Partially implement subgroup ops for HLSL SM 6.0.
Lots of stuff that needs tons of emulation, which I'm not going to
bother with.
Diffstat (limited to 'tests-other')
| -rw-r--r-- | tests-other/hlsl_wave_mask.cpp | 73 |
1 files changed, 73 insertions, 0 deletions
diff --git a/tests-other/hlsl_wave_mask.cpp b/tests-other/hlsl_wave_mask.cpp new file mode 100644 index 00000000..de11dd9f --- /dev/null +++ b/tests-other/hlsl_wave_mask.cpp @@ -0,0 +1,73 @@ +// Ad-hoc test that the wave op masks work as expected. +#include <glm/glm.hpp> +#include <assert.h> + +using namespace glm; + +static uvec4 gl_SubgroupEqMask; +static uvec4 gl_SubgroupGeMask; +static uvec4 gl_SubgroupGtMask; +static uvec4 gl_SubgroupLeMask; +static uvec4 gl_SubgroupLtMask; +using uint4 = uvec4; + +static void test_main(unsigned wave_index) +{ + const auto WaveGetLaneIndex = [&]() { return wave_index; }; + + gl_SubgroupEqMask = 1u << (WaveGetLaneIndex() - uint4(0, 32, 64, 96)); + if (WaveGetLaneIndex() >= 32) gl_SubgroupEqMask.x = 0; + if (WaveGetLaneIndex() >= 64 || WaveGetLaneIndex() < 32) gl_SubgroupEqMask.y = 0; + if (WaveGetLaneIndex() >= 96 || WaveGetLaneIndex() < 64) gl_SubgroupEqMask.z = 0; + if (WaveGetLaneIndex() < 96) gl_SubgroupEqMask.w = 0; + gl_SubgroupGeMask = ~((1u << (WaveGetLaneIndex() - uint4(0, 32, 64, 96))) - 1u); + if (WaveGetLaneIndex() >= 32) gl_SubgroupGeMask.x = 0u; + if (WaveGetLaneIndex() >= 64) gl_SubgroupGeMask.y = 0u; + if (WaveGetLaneIndex() >= 96) gl_SubgroupGeMask.z = 0u; + if (WaveGetLaneIndex() < 32) gl_SubgroupGeMask.y = ~0u; + if (WaveGetLaneIndex() < 64) gl_SubgroupGeMask.z = ~0u; + if (WaveGetLaneIndex() < 96) gl_SubgroupGeMask.w = ~0u; + uint gt_lane_index = WaveGetLaneIndex() + 1; + gl_SubgroupGtMask = ~((1u << (gt_lane_index - uint4(0, 32, 64, 96))) - 1u); + if (gt_lane_index >= 32) gl_SubgroupGtMask.x = 0u; + if (gt_lane_index >= 64) gl_SubgroupGtMask.y = 0u; + if (gt_lane_index >= 96) gl_SubgroupGtMask.z = 0u; + if (gt_lane_index >= 128) gl_SubgroupGtMask.w = 0u; + if (gt_lane_index < 32) gl_SubgroupGtMask.y = ~0u; + if (gt_lane_index < 64) gl_SubgroupGtMask.z = ~0u; + if (gt_lane_index < 96) gl_SubgroupGtMask.w = ~0u; + uint le_lane_index = WaveGetLaneIndex() + 1; + gl_SubgroupLeMask = (1u << (le_lane_index - uint4(0, 32, 64, 96))) - 1u; + if (le_lane_index >= 32) gl_SubgroupLeMask.x = ~0u; + if (le_lane_index >= 64) gl_SubgroupLeMask.y = ~0u; + if (le_lane_index >= 96) gl_SubgroupLeMask.z = ~0u; + if (le_lane_index >= 128) gl_SubgroupLeMask.w = ~0u; + if (le_lane_index < 32) gl_SubgroupLeMask.y = 0u; + if (le_lane_index < 64) gl_SubgroupLeMask.z = 0u; + if (le_lane_index < 96) gl_SubgroupLeMask.w = 0u; + gl_SubgroupLtMask = (1u << (WaveGetLaneIndex() - uint4(0, 32, 64, 96))) - 1u; + if (WaveGetLaneIndex() >= 32) gl_SubgroupLtMask.x = ~0u; + if (WaveGetLaneIndex() >= 64) gl_SubgroupLtMask.y = ~0u; + if (WaveGetLaneIndex() >= 96) gl_SubgroupLtMask.z = ~0u; + if (WaveGetLaneIndex() < 32) gl_SubgroupLtMask.y = 0u; + if (WaveGetLaneIndex() < 64) gl_SubgroupLtMask.z = 0u; + if (WaveGetLaneIndex() < 96) gl_SubgroupLtMask.w = 0u; +} + +int main() +{ + for (unsigned subgroup_id = 0; subgroup_id < 128; subgroup_id++) + { + test_main(subgroup_id); + + for (unsigned bit = 0; bit < 128; bit++) + { + assert(bool(gl_SubgroupEqMask[bit / 32] & (1u << (bit & 31))) == (bit == subgroup_id)); + assert(bool(gl_SubgroupGtMask[bit / 32] & (1u << (bit & 31))) == (bit > subgroup_id)); + assert(bool(gl_SubgroupGeMask[bit / 32] & (1u << (bit & 31))) == (bit >= subgroup_id)); + assert(bool(gl_SubgroupLtMask[bit / 32] & (1u << (bit & 31))) == (bit < subgroup_id)); + assert(bool(gl_SubgroupLeMask[bit / 32] & (1u << (bit & 31))) == (bit <= subgroup_id)); + } + } +} + |