From 95213270efbc378561f18cc6eeb4428c2905b154 Mon Sep 17 00:00:00 2001 From: ameerj <52414509+ameerj@users.noreply.github.com> Date: Mon, 30 Aug 2021 20:39:21 -0400 Subject: emit_spirv_warp: Fix ballot related ops for 64-thread warp sizes --- .../backend/spirv/emit_spirv_warp.cpp | 21 +++++++++++---------- 1 file changed, 11 insertions(+), 10 deletions(-) (limited to 'src/shader_recompiler') diff --git a/src/shader_recompiler/backend/spirv/emit_spirv_warp.cpp b/src/shader_recompiler/backend/spirv/emit_spirv_warp.cpp index 78b1e1ba7..e7e7b4da1 100644 --- a/src/shader_recompiler/backend/spirv/emit_spirv_warp.cpp +++ b/src/shader_recompiler/backend/spirv/emit_spirv_warp.cpp @@ -7,8 +7,13 @@ namespace Shader::Backend::SPIRV { namespace { +Id GetThreadId(EmitContext& ctx) { + return ctx.OpLoad(ctx.U32[1], ctx.subgroup_local_invocation_id); +} + Id WarpExtract(EmitContext& ctx, Id value) { - const Id local_index{ctx.OpLoad(ctx.U32[1], ctx.subgroup_local_invocation_id)}; + const Id thread_id{GetThreadId(ctx)}; + const Id local_index{ctx.OpShiftRightArithmetic(ctx.U32[1], thread_id, ctx.Const(5U))}; return ctx.OpVectorExtractDynamic(ctx.U32[1], value, local_index); } @@ -51,11 +56,7 @@ Id SelectValue(EmitContext& ctx, Id in_range, Id value, Id src_thread_id) { } // Anonymous namespace Id EmitLaneId(EmitContext& ctx) { - const Id id{ctx.OpLoad(ctx.U32[1], ctx.subgroup_local_invocation_id)}; - if (!ctx.profile.warp_size_potentially_larger_than_guest) { - return id; - } - return ctx.OpBitwiseAnd(ctx.U32[1], id, ctx.Const(31U)); + return GetThreadId(ctx); } Id EmitVoteAll(EmitContext& ctx, Id pred) { @@ -123,7 +124,7 @@ Id EmitSubgroupGeMask(EmitContext& ctx) { Id EmitShuffleIndex(EmitContext& ctx, IR::Inst* inst, Id value, Id index, Id clamp, Id segmentation_mask) { const Id not_seg_mask{ctx.OpNot(ctx.U32[1], segmentation_mask)}; - const Id thread_id{ctx.OpLoad(ctx.U32[1], ctx.subgroup_local_invocation_id)}; + const Id thread_id{GetThreadId(ctx)}; const Id min_thread_id{ComputeMinThreadId(ctx, thread_id, segmentation_mask)}; const Id max_thread_id{ComputeMaxThreadId(ctx, min_thread_id, clamp, not_seg_mask)}; @@ -137,7 +138,7 @@ Id EmitShuffleIndex(EmitContext& ctx, IR::Inst* inst, Id value, Id index, Id cla Id EmitShuffleUp(EmitContext& ctx, IR::Inst* inst, Id value, Id index, Id clamp, Id segmentation_mask) { - const Id thread_id{ctx.OpLoad(ctx.U32[1], ctx.subgroup_local_invocation_id)}; + const Id thread_id{GetThreadId(ctx)}; const Id max_thread_id{GetMaxThreadId(ctx, thread_id, clamp, segmentation_mask)}; const Id src_thread_id{ctx.OpISub(ctx.U32[1], thread_id, index)}; const Id in_range{ctx.OpSGreaterThanEqual(ctx.U1, src_thread_id, max_thread_id)}; @@ -148,7 +149,7 @@ Id EmitShuffleUp(EmitContext& ctx, IR::Inst* inst, Id value, Id index, Id clamp, Id EmitShuffleDown(EmitContext& ctx, IR::Inst* inst, Id value, Id index, Id clamp, Id segmentation_mask) { - const Id thread_id{ctx.OpLoad(ctx.U32[1], ctx.subgroup_local_invocation_id)}; + const Id thread_id{GetThreadId(ctx)}; const Id max_thread_id{GetMaxThreadId(ctx, thread_id, clamp, segmentation_mask)}; const Id src_thread_id{ctx.OpIAdd(ctx.U32[1], thread_id, index)}; const Id in_range{ctx.OpSLessThanEqual(ctx.U1, src_thread_id, max_thread_id)}; @@ -159,7 +160,7 @@ Id EmitShuffleDown(EmitContext& ctx, IR::Inst* inst, Id value, Id index, Id clam Id EmitShuffleButterfly(EmitContext& ctx, IR::Inst* inst, Id value, Id index, Id clamp, Id segmentation_mask) { - const Id thread_id{ctx.OpLoad(ctx.U32[1], ctx.subgroup_local_invocation_id)}; + const Id thread_id{GetThreadId(ctx)}; const Id max_thread_id{GetMaxThreadId(ctx, thread_id, clamp, segmentation_mask)}; const Id src_thread_id{ctx.OpBitwiseXor(ctx.U32[1], thread_id, index)}; const Id in_range{ctx.OpSLessThanEqual(ctx.U1, src_thread_id, max_thread_id)}; -- cgit v1.2.3 From a5d9dcf3d916500a2955a655ed71e225746217bf Mon Sep 17 00:00:00 2001 From: ameerj <52414509+ameerj@users.noreply.github.com> Date: Mon, 30 Aug 2021 21:11:16 -0400 Subject: emit_spirv_warp: Fix shuffle ops for 64-thread warp sizes --- .../backend/spirv/emit_spirv_warp.cpp | 30 +++++++++++++++++++++- 1 file changed, 29 insertions(+), 1 deletion(-) (limited to 'src/shader_recompiler') diff --git a/src/shader_recompiler/backend/spirv/emit_spirv_warp.cpp b/src/shader_recompiler/backend/spirv/emit_spirv_warp.cpp index e7e7b4da1..cef52c56e 100644 --- a/src/shader_recompiler/backend/spirv/emit_spirv_warp.cpp +++ b/src/shader_recompiler/backend/spirv/emit_spirv_warp.cpp @@ -53,10 +53,21 @@ Id SelectValue(EmitContext& ctx, Id in_range, Id value, Id src_thread_id) { return ctx.OpSelect(ctx.U32[1], in_range, ctx.OpSubgroupReadInvocationKHR(ctx.U32[1], value, src_thread_id), value); } + +Id GetUpperClamp(EmitContext& ctx, Id invocation_id, Id clamp) { + const Id thirty_two{ctx.Const(32u)}; + const Id is_upper_partition{ctx.OpSGreaterThanEqual(ctx.U1, invocation_id, thirty_two)}; + const Id upper_clamp{ctx.OpIAdd(ctx.U32[1], thirty_two, clamp)}; + return ctx.OpSelect(ctx.U32[1], is_upper_partition, upper_clamp, clamp); +} } // Anonymous namespace Id EmitLaneId(EmitContext& ctx) { - return GetThreadId(ctx); + const Id id{GetThreadId(ctx)}; + if (!ctx.profile.warp_size_potentially_larger_than_guest) { + return id; + } + return ctx.OpBitwiseAnd(ctx.U32[1], id, ctx.Const(31U)); } Id EmitVoteAll(EmitContext& ctx, Id pred) { @@ -125,6 +136,14 @@ Id EmitShuffleIndex(EmitContext& ctx, IR::Inst* inst, Id value, Id index, Id cla Id segmentation_mask) { const Id not_seg_mask{ctx.OpNot(ctx.U32[1], segmentation_mask)}; const Id thread_id{GetThreadId(ctx)}; + if (ctx.profile.warp_size_potentially_larger_than_guest) { + const Id thirty_two{ctx.Const(32u)}; + const Id is_upper_partition{ctx.OpSGreaterThanEqual(ctx.U1, thread_id, thirty_two)}; + const Id upper_index{ctx.OpIAdd(ctx.U32[1], thirty_two, index)}; + const Id upper_clamp{ctx.OpIAdd(ctx.U32[1], thirty_two, clamp)}; + index = ctx.OpSelect(ctx.U32[1], is_upper_partition, upper_index, index); + clamp = ctx.OpSelect(ctx.U32[1], is_upper_partition, upper_clamp, clamp); + } const Id min_thread_id{ComputeMinThreadId(ctx, thread_id, segmentation_mask)}; const Id max_thread_id{ComputeMaxThreadId(ctx, min_thread_id, clamp, not_seg_mask)}; @@ -139,6 +158,9 @@ Id EmitShuffleIndex(EmitContext& ctx, IR::Inst* inst, Id value, Id index, Id cla Id EmitShuffleUp(EmitContext& ctx, IR::Inst* inst, Id value, Id index, Id clamp, Id segmentation_mask) { const Id thread_id{GetThreadId(ctx)}; + if (ctx.profile.warp_size_potentially_larger_than_guest) { + clamp = GetUpperClamp(ctx, thread_id, clamp); + } const Id max_thread_id{GetMaxThreadId(ctx, thread_id, clamp, segmentation_mask)}; const Id src_thread_id{ctx.OpISub(ctx.U32[1], thread_id, index)}; const Id in_range{ctx.OpSGreaterThanEqual(ctx.U1, src_thread_id, max_thread_id)}; @@ -150,6 +172,9 @@ Id EmitShuffleUp(EmitContext& ctx, IR::Inst* inst, Id value, Id index, Id clamp, Id EmitShuffleDown(EmitContext& ctx, IR::Inst* inst, Id value, Id index, Id clamp, Id segmentation_mask) { const Id thread_id{GetThreadId(ctx)}; + if (ctx.profile.warp_size_potentially_larger_than_guest) { + clamp = GetUpperClamp(ctx, thread_id, clamp); + } const Id max_thread_id{GetMaxThreadId(ctx, thread_id, clamp, segmentation_mask)}; const Id src_thread_id{ctx.OpIAdd(ctx.U32[1], thread_id, index)}; const Id in_range{ctx.OpSLessThanEqual(ctx.U1, src_thread_id, max_thread_id)}; @@ -161,6 +186,9 @@ Id EmitShuffleDown(EmitContext& ctx, IR::Inst* inst, Id value, Id index, Id clam Id EmitShuffleButterfly(EmitContext& ctx, IR::Inst* inst, Id value, Id index, Id clamp, Id segmentation_mask) { const Id thread_id{GetThreadId(ctx)}; + if (ctx.profile.warp_size_potentially_larger_than_guest) { + clamp = GetUpperClamp(ctx, thread_id, clamp); + } const Id max_thread_id{GetMaxThreadId(ctx, thread_id, clamp, segmentation_mask)}; const Id src_thread_id{ctx.OpBitwiseXor(ctx.U32[1], thread_id, index)}; const Id in_range{ctx.OpSLessThanEqual(ctx.U1, src_thread_id, max_thread_id)}; -- cgit v1.2.3 From 5b45dfe9712b414016bedb81121c779365dec40c Mon Sep 17 00:00:00 2001 From: ameerj <52414509+ameerj@users.noreply.github.com> Date: Tue, 31 Aug 2021 01:41:47 -0400 Subject: emit_glsl_warp: Fix ballot related ops for 64-thread warp sizes --- .../backend/glsl/emit_glsl_warp.cpp | 62 +++++++++++++--------- 1 file changed, 38 insertions(+), 24 deletions(-) (limited to 'src/shader_recompiler') diff --git a/src/shader_recompiler/backend/glsl/emit_glsl_warp.cpp b/src/shader_recompiler/backend/glsl/emit_glsl_warp.cpp index a982dd8a2..ffbb83352 100644 --- a/src/shader_recompiler/backend/glsl/emit_glsl_warp.cpp +++ b/src/shader_recompiler/backend/glsl/emit_glsl_warp.cpp @@ -11,6 +11,8 @@ namespace Shader::Backend::GLSL { namespace { +constexpr char THREAD_ID[]{"gl_SubGroupInvocationARB"}; + void SetInBoundsFlag(EmitContext& ctx, IR::Inst& inst) { IR::Inst* const in_bounds{inst.GetAssociatedPseudoOperation(IR::Opcode::GetInBoundsFromOp)}; if (!in_bounds) { @@ -43,69 +45,81 @@ void UseShuffleNv(EmitContext& ctx, IR::Inst& inst, std::string_view shfl_op, ctx.AddU32("{}={}({},{},{},shfl_in_bounds);", inst, shfl_op, value, index, width); SetInBoundsFlag(ctx, inst); } + +std::string_view BallotIndex(EmitContext& ctx) { + if (!ctx.profile.warp_size_potentially_larger_than_guest) { + return ".x"; + } + return "[gl_SubGroupInvocationARB>>5]"; +} + +std::string GetMask(EmitContext& ctx, std::string_view mask) { + const auto ballot_index{BallotIndex(ctx)}; + return fmt::format("uint(uvec2({}){})", mask, ballot_index); +} } // Anonymous namespace void EmitLaneId(EmitContext& ctx, IR::Inst& inst) { - ctx.AddU32("{}=gl_SubGroupInvocationARB&31u;", inst); + ctx.AddU32("{}={}&31u;", inst, THREAD_ID); } void EmitVoteAll(EmitContext& ctx, IR::Inst& inst, std::string_view pred) { if (!ctx.profile.warp_size_potentially_larger_than_guest) { ctx.AddU1("{}=allInvocationsEqualARB({});", inst, pred); - } else { - const auto active_mask{fmt::format("uvec2(ballotARB(true))[gl_SubGroupInvocationARB]")}; - const auto ballot{fmt::format("uvec2(ballotARB({}))[gl_SubGroupInvocationARB]", pred)}; - ctx.AddU1("{}=({}&{})=={};", inst, ballot, active_mask, active_mask); + return; } + const auto ballot_index{BallotIndex(ctx)}; + const auto active_mask{fmt::format("uvec2(ballotARB(true)){}", ballot_index)}; + const auto ballot{fmt::format("uvec2(ballotARB({})){}", pred, ballot_index)}; + ctx.AddU1("{}=({}&{})=={};", inst, ballot, active_mask, active_mask); } void EmitVoteAny(EmitContext& ctx, IR::Inst& inst, std::string_view pred) { if (!ctx.profile.warp_size_potentially_larger_than_guest) { ctx.AddU1("{}=anyInvocationARB({});", inst, pred); - } else { - const auto active_mask{fmt::format("uvec2(ballotARB(true))[gl_SubGroupInvocationARB]")}; - const auto ballot{fmt::format("uvec2(ballotARB({}))[gl_SubGroupInvocationARB]", pred)}; - ctx.AddU1("{}=({}&{})!=0u;", inst, ballot, active_mask, active_mask); + return; } + const auto ballot_index{BallotIndex(ctx)}; + const auto active_mask{fmt::format("uvec2(ballotARB(true)){}", ballot_index)}; + const auto ballot{fmt::format("uvec2(ballotARB({})){}", pred, ballot_index)}; + ctx.AddU1("{}=({}&{})!=0u;", inst, ballot, active_mask, active_mask); } void EmitVoteEqual(EmitContext& ctx, IR::Inst& inst, std::string_view pred) { if (!ctx.profile.warp_size_potentially_larger_than_guest) { ctx.AddU1("{}=allInvocationsEqualARB({});", inst, pred); - } else { - const auto active_mask{fmt::format("uvec2(ballotARB(true))[gl_SubGroupInvocationARB]")}; - const auto ballot{fmt::format("uvec2(ballotARB({}))[gl_SubGroupInvocationARB]", pred)}; - const auto value{fmt::format("({}^{})", ballot, active_mask)}; - ctx.AddU1("{}=({}==0)||({}=={});", inst, value, value, active_mask); + return; } + const auto ballot_index{BallotIndex(ctx)}; + const auto active_mask{fmt::format("uvec2(ballotARB(true)){}", ballot_index)}; + const auto ballot{fmt::format("uvec2(ballotARB({})){}", pred, ballot_index)}; + const auto value{fmt::format("({}^{})", ballot, active_mask)}; + ctx.AddU1("{}=({}==0)||({}=={});", inst, value, value, active_mask); } void EmitSubgroupBallot(EmitContext& ctx, IR::Inst& inst, std::string_view pred) { - if (!ctx.profile.warp_size_potentially_larger_than_guest) { - ctx.AddU32("{}=uvec2(ballotARB({})).x;", inst, pred); - } else { - ctx.AddU32("{}=uvec2(ballotARB({}))[gl_SubGroupInvocationARB];", inst, pred); - } + const auto ballot_index{BallotIndex(ctx)}; + ctx.AddU32("{}=uvec2(ballotARB({})){};", inst, pred, ballot_index); } void EmitSubgroupEqMask(EmitContext& ctx, IR::Inst& inst) { - ctx.AddU32("{}=uint(gl_SubGroupEqMaskARB.x);", inst); + ctx.AddU32("{}={};", inst, GetMask(ctx, "gl_SubGroupEqMaskARB")); } void EmitSubgroupLtMask(EmitContext& ctx, IR::Inst& inst) { - ctx.AddU32("{}=uint(gl_SubGroupLtMaskARB.x);", inst); + ctx.AddU32("{}={};", inst, GetMask(ctx, "gl_SubGroupLtMaskARB")); } void EmitSubgroupLeMask(EmitContext& ctx, IR::Inst& inst) { - ctx.AddU32("{}=uint(gl_SubGroupLeMaskARB.x);", inst); + ctx.AddU32("{}={};", inst, GetMask(ctx, "gl_SubGroupLeMaskARB")); } void EmitSubgroupGtMask(EmitContext& ctx, IR::Inst& inst) { - ctx.AddU32("{}=uint(gl_SubGroupGtMaskARB.x);", inst); + ctx.AddU32("{}={};", inst, GetMask(ctx, "gl_SubGroupGtMaskARB")); } void EmitSubgroupGeMask(EmitContext& ctx, IR::Inst& inst) { - ctx.AddU32("{}=uint(gl_SubGroupGeMaskARB.x);", inst); + ctx.AddU32("{}={};", inst, GetMask(ctx, "gl_SubGroupGeMaskARB")); } void EmitShuffleIndex(EmitContext& ctx, IR::Inst& inst, std::string_view value, -- cgit v1.2.3 From d956fb3c7c59cca02bc9b558b920fbef9c1ba159 Mon Sep 17 00:00:00 2001 From: ameerj <52414509+ameerj@users.noreply.github.com> Date: Tue, 31 Aug 2021 02:06:22 -0400 Subject: emit_glsl_warp: Fix shuffle ops for 64-thread warp sizes --- .../backend/glsl/emit_glsl_warp.cpp | 60 +++++++++++++--------- 1 file changed, 36 insertions(+), 24 deletions(-) (limited to 'src/shader_recompiler') diff --git a/src/shader_recompiler/backend/glsl/emit_glsl_warp.cpp b/src/shader_recompiler/backend/glsl/emit_glsl_warp.cpp index ffbb83352..cd285e2c8 100644 --- a/src/shader_recompiler/backend/glsl/emit_glsl_warp.cpp +++ b/src/shader_recompiler/backend/glsl/emit_glsl_warp.cpp @@ -123,18 +123,22 @@ 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) { + std::string_view index, std::string_view clamp, std::string_view seg_mask) { if (ctx.profile.support_gl_warp_intrinsics) { - UseShuffleNv(ctx, inst, "shuffleNV", value, index, clamp, segmentation_mask); + UseShuffleNv(ctx, inst, "shuffleNV", value, index, clamp, seg_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)}; - const auto max_thread_id{ComputeMaxThreadId(min_thread_id, clamp, not_seg_mask)}; + const bool big_warp{ctx.profile.warp_size_potentially_larger_than_guest}; + const auto is_upper_partition{"int(gl_SubGroupInvocationARB)>=32"}; + const auto upper_index{fmt::format("{}?{}+32:{}", is_upper_partition, index, index)}; + const auto upper_clamp{fmt::format("{}?{}+32:{}", is_upper_partition, clamp, clamp)}; + + const auto not_seg_mask{fmt::format("(~{})", seg_mask)}; + const auto min_thread_id{ComputeMinThreadId(THREAD_ID, seg_mask)}; + const auto max_thread_id{ + ComputeMaxThreadId(min_thread_id, big_warp ? upper_clamp : clamp, not_seg_mask)}; - const auto lhs{fmt::format("({}&{})", index, not_seg_mask)}; + const auto lhs{fmt::format("({}&{})", big_warp ? upper_index : index, not_seg_mask)}; const auto src_thread_id{fmt::format("({})|({})", lhs, min_thread_id)}; ctx.Add("shfl_in_bounds=int({})<=int({});", src_thread_id, max_thread_id); SetInBoundsFlag(ctx, inst); @@ -142,29 +146,34 @@ 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) { + std::string_view clamp, std::string_view seg_mask) { if (ctx.profile.support_gl_warp_intrinsics) { - UseShuffleNv(ctx, inst, "shuffleUpNV", value, index, clamp, segmentation_mask); + UseShuffleNv(ctx, inst, "shuffleUpNV", value, index, clamp, seg_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)}; + const bool big_warp{ctx.profile.warp_size_potentially_larger_than_guest}; + const auto is_upper_partition{"int(gl_SubGroupInvocationARB)>=32"}; + const auto upper_clamp{fmt::format("{}?{}+32:{}", is_upper_partition, clamp, clamp)}; + + const auto max_thread_id{GetMaxThreadId(THREAD_ID, big_warp ? upper_clamp : clamp, seg_mask)}; + const auto src_thread_id{fmt::format("({}-{})", THREAD_ID, index)}; ctx.Add("shfl_in_bounds=int({})>=int({});", src_thread_id, max_thread_id); SetInBoundsFlag(ctx, inst); ctx.AddU32("{}=shfl_in_bounds?readInvocationARB({},{}):{};", inst, value, src_thread_id, value); } void EmitShuffleDown(EmitContext& ctx, IR::Inst& inst, std::string_view value, - std::string_view index, std::string_view clamp, - std::string_view segmentation_mask) { + std::string_view index, std::string_view clamp, std::string_view seg_mask) { if (ctx.profile.support_gl_warp_intrinsics) { - UseShuffleNv(ctx, inst, "shuffleDownNV", value, index, clamp, segmentation_mask); + UseShuffleNv(ctx, inst, "shuffleDownNV", value, index, clamp, seg_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)}; + const bool big_warp{ctx.profile.warp_size_potentially_larger_than_guest}; + const auto is_upper_partition{"int(gl_SubGroupInvocationARB)>=32"}; + const auto upper_clamp{fmt::format("{}?{}+32:{}", is_upper_partition, clamp, clamp)}; + + const auto max_thread_id{GetMaxThreadId(THREAD_ID, big_warp ? upper_clamp : clamp, seg_mask)}; + const auto src_thread_id{fmt::format("({}+{})", THREAD_ID, index)}; ctx.Add("shfl_in_bounds=int({})<=int({});", src_thread_id, max_thread_id); SetInBoundsFlag(ctx, inst); ctx.AddU32("{}=shfl_in_bounds?readInvocationARB({},{}):{};", inst, value, src_thread_id, value); @@ -172,14 +181,17 @@ 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) { + std::string_view seg_mask) { if (ctx.profile.support_gl_warp_intrinsics) { - UseShuffleNv(ctx, inst, "shuffleXorNV", value, index, clamp, segmentation_mask); + UseShuffleNv(ctx, inst, "shuffleXorNV", value, index, clamp, seg_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)}; + const bool big_warp{ctx.profile.warp_size_potentially_larger_than_guest}; + const auto is_upper_partition{"int(gl_SubGroupInvocationARB)>=32"}; + const auto upper_clamp{fmt::format("{}?{}+32:{}", is_upper_partition, clamp, clamp)}; + + const auto max_thread_id{GetMaxThreadId(THREAD_ID, big_warp ? upper_clamp : clamp, seg_mask)}; + const auto src_thread_id{fmt::format("({}^{})", THREAD_ID, index)}; ctx.Add("shfl_in_bounds=int({})<=int({});", src_thread_id, max_thread_id); SetInBoundsFlag(ctx, inst); ctx.AddU32("{}=shfl_in_bounds?readInvocationARB({},{}):{};", inst, value, src_thread_id, value); -- cgit v1.2.3