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authorameerj <52414509+ameerj@users.noreply.github.com>2021-08-31 07:41:47 +0200
committerameerj <52414509+ameerj@users.noreply.github.com>2021-08-31 22:11:25 +0200
commit5b45dfe9712b414016bedb81121c779365dec40c (patch)
tree11bf50706eb4d1dd592085c3f39c313dabe131a9 /src/shader_recompiler/backend
parentemit_spirv_warp: Fix shuffle ops for 64-thread warp sizes (diff)
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Diffstat (limited to '')
-rw-r--r--src/shader_recompiler/backend/glsl/emit_glsl_warp.cpp62
1 files changed, 38 insertions, 24 deletions
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,