diff options
| author | ameerj <52414509+ameerj@users.noreply.github.com> | 2021-06-08 01:55:12 -0400 |
|---|---|---|
| committer | ameerj <52414509+ameerj@users.noreply.github.com> | 2021-07-22 21:51:37 -0400 |
| commit | 8bb8bbf4ae2ef259857efe49436dfd71758ea092 (patch) | |
| tree | 73c66ae1b91a91ca569ebe0473df12e870fb254a /src/shader_recompiler/backend/glsl/emit_glsl_warp.cpp | |
| parent | c5422041134ed2645e7cd32152e36f9d04c66da3 (diff) | |
glsl: Implement fswzadd
and wip nv thread shuffle impl
Diffstat (limited to 'src/shader_recompiler/backend/glsl/emit_glsl_warp.cpp')
| -rw-r--r-- | src/shader_recompiler/backend/glsl/emit_glsl_warp.cpp | 36 |
1 files changed, 31 insertions, 5 deletions
diff --git a/src/shader_recompiler/backend/glsl/emit_glsl_warp.cpp b/src/shader_recompiler/backend/glsl/emit_glsl_warp.cpp index 38c49b164b..6ced0776cc 100644 --- a/src/shader_recompiler/backend/glsl/emit_glsl_warp.cpp +++ b/src/shader_recompiler/backend/glsl/emit_glsl_warp.cpp @@ -35,9 +35,17 @@ std::string GetMaxThreadId(std::string_view thread_id, std::string_view clamp, const auto min_thread_id{ComputeMinThreadId(thread_id, segmentation_mask)}; return ComputeMaxThreadId(min_thread_id, clamp, not_seg_mask); } + +void UseShuffleNv(EmitContext& ctx, IR::Inst& inst, std::string_view shfl_op, + std::string_view value, std::string_view index, + [[maybe_unused]] std::string_view clamp, std::string_view segmentation_mask) { + const auto width{fmt::format("32u>>(bitCount({}&31u))", segmentation_mask)}; + ctx.AddU32("{}={}({},{},{},shfl_in_bounds);", inst, shfl_op, value, index, width); + SetInBoundsFlag(ctx, inst); +} } // namespace -void EmitLaneId([[maybe_unused]] EmitContext& ctx, [[maybe_unused]] IR::Inst& inst) { +void EmitLaneId(EmitContext& ctx, IR::Inst& inst) { ctx.AddU32("{}=gl_SubGroupInvocationARB&31u;", inst); } @@ -103,6 +111,10 @@ void EmitSubgroupGeMask(EmitContext& ctx, IR::Inst& inst) { void EmitShuffleIndex(EmitContext& ctx, IR::Inst& inst, std::string_view value, std::string_view index, std::string_view clamp, std::string_view segmentation_mask) { + if (ctx.profile.support_gl_warp_intrinsics) { + UseShuffleNv(ctx, inst, "shuffleNV", value, index, clamp, segmentation_mask); + return; + } const auto not_seg_mask{fmt::format("(~{})", segmentation_mask)}; const auto thread_id{"gl_SubGroupInvocationARB"}; const auto min_thread_id{ComputeMinThreadId(thread_id, segmentation_mask)}; @@ -117,6 +129,10 @@ void EmitShuffleIndex(EmitContext& ctx, IR::Inst& inst, std::string_view value, void EmitShuffleUp(EmitContext& ctx, IR::Inst& inst, std::string_view value, std::string_view index, std::string_view clamp, std::string_view segmentation_mask) { + if (ctx.profile.support_gl_warp_intrinsics) { + UseShuffleNv(ctx, inst, "shuffleUpNV", value, index, clamp, segmentation_mask); + return; + } const auto thread_id{"gl_SubGroupInvocationARB"}; const auto max_thread_id{GetMaxThreadId(thread_id, clamp, segmentation_mask)}; const auto src_thread_id{fmt::format("({}-{})", thread_id, index)}; @@ -128,6 +144,10 @@ void EmitShuffleUp(EmitContext& ctx, IR::Inst& inst, std::string_view value, std void EmitShuffleDown(EmitContext& ctx, IR::Inst& inst, std::string_view value, std::string_view index, std::string_view clamp, std::string_view segmentation_mask) { + if (ctx.profile.support_gl_warp_intrinsics) { + UseShuffleNv(ctx, inst, "shuffleDownNV", value, index, clamp, segmentation_mask); + return; + } const auto thread_id{"gl_SubGroupInvocationARB"}; const auto max_thread_id{GetMaxThreadId(thread_id, clamp, segmentation_mask)}; const auto src_thread_id{fmt::format("({}+{})", thread_id, index)}; @@ -139,6 +159,10 @@ void EmitShuffleDown(EmitContext& ctx, IR::Inst& inst, std::string_view value, void EmitShuffleButterfly(EmitContext& ctx, IR::Inst& inst, std::string_view value, std::string_view index, std::string_view clamp, std::string_view segmentation_mask) { + if (ctx.profile.support_gl_warp_intrinsics) { + UseShuffleNv(ctx, inst, "shuffleXorNV", value, index, clamp, segmentation_mask); + return; + } const auto thread_id{"gl_SubGroupInvocationARB"}; const auto max_thread_id{GetMaxThreadId(thread_id, clamp, segmentation_mask)}; const auto src_thread_id{fmt::format("({}^{})", thread_id, index)}; @@ -147,10 +171,12 @@ void EmitShuffleButterfly(EmitContext& ctx, IR::Inst& inst, std::string_view val ctx.AddU32("{}=shfl_in_bounds?readInvocationARB({},{}):{};", inst, value, src_thread_id, value); } -void EmitFSwizzleAdd([[maybe_unused]] EmitContext& ctx, [[maybe_unused]] IR::Inst& inst, - [[maybe_unused]] std::string_view op_a, [[maybe_unused]] std::string_view op_b, - [[maybe_unused]] std::string_view swizzle) { - NotImplemented(); +void EmitFSwizzleAdd(EmitContext& ctx, IR::Inst& inst, std::string_view op_a, std::string_view op_b, + std::string_view swizzle) { + const auto mask{fmt::format("({}>>((gl_SubGroupInvocationARB&3)<<1))&3", swizzle)}; + const std::string modifier_a = fmt::format("FSWZ_A[{}]", mask); + const std::string modifier_b = fmt::format("FSWZ_B[{}]", mask); + ctx.AddF32("{}=({}*{})+({}*{});", inst, op_a, modifier_a, op_b, modifier_b); } void EmitDPdxFine(EmitContext& ctx, IR::Inst& inst, std::string_view op_a) { |