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glasm: Implement FSWZADD

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This commit is contained in:
ameerj 2021-05-19 01:00:51 -04:00
parent 3da7b98d37
commit 36d040da70
3 changed files with 28 additions and 4 deletions
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16
src/shader_recompiler/backend/glasm/emit_glasm.cpp
View file

@ -281,7 +281,8 @@ void SetupOptions(const IR::Program& program, const Profile& profile, std::strin
if (info.uses_atomic_f16x2_add || info.uses_atomic_f16x2_min || info.uses_atomic_f16x2_max) { if (info.uses_atomic_f16x2_add || info.uses_atomic_f16x2_min || info.uses_atomic_f16x2_max) {
header += "OPTION NV_shader_atomic_fp16_vector;"; header += "OPTION NV_shader_atomic_fp16_vector;";
} }
if (info.uses_subgroup_invocation_id || info.uses_subgroup_mask || info.uses_subgroup_vote) { if (info.uses_subgroup_invocation_id || info.uses_subgroup_mask || info.uses_subgroup_vote ||
info.uses_fswzadd) {
header += "OPTION NV_shader_thread_group;"; header += "OPTION NV_shader_thread_group;";
} }
if (info.uses_subgroup_shuffles) { if (info.uses_subgroup_shuffles) {
@ -416,12 +417,25 @@ std::string EmitGLASM(const Profile& profile, IR::Program& program, Bindings& bi
if (program.local_memory_size > 0) { if (program.local_memory_size > 0) {
header += fmt::format("lmem[{}],", program.local_memory_size); header += fmt::format("lmem[{}],", program.local_memory_size);
} }
if (program.info.uses_fswzadd) {
header += "FSWZA[4],FSWZB[4],";
}
header += "RC;" header += "RC;"
"LONG TEMP "; "LONG TEMP ";
for (size_t index = 0; index < ctx.reg_alloc.NumUsedLongRegisters(); ++index) { for (size_t index = 0; index < ctx.reg_alloc.NumUsedLongRegisters(); ++index) {
header += fmt::format("D{},", index); header += fmt::format("D{},", index);
} }
header += "DC;"; header += "DC;";
if (program.info.uses_fswzadd) {
header += "MOV.F FSWZA[0],-1;"
"MOV.F FSWZA[1],1;"
"MOV.F FSWZA[2],-1;"
"MOV.F FSWZA[3],0;"
"MOV.F FSWZB[0],-1;"
"MOV.F FSWZB[1],-1;"
"MOV.F FSWZB[2],1;"
"MOV.F FSWZB[3],-1;";
}
ctx.code.insert(0, header); ctx.code.insert(0, header);
ctx.code += "END"; ctx.code += "END";
return ctx.code; return ctx.code;

3
src/shader_recompiler/backend/glasm/emit_glasm_instructions.h
View file

@ -616,7 +616,8 @@ void EmitShuffleDown(EmitContext& ctx, IR::Inst& inst, ScalarU32 value, ScalarU3
const IR::Value& clamp, const IR::Value& segmentation_mask); const IR::Value& clamp, const IR::Value& segmentation_mask);
void EmitShuffleButterfly(EmitContext& ctx, IR::Inst& inst, ScalarU32 value, ScalarU32 index, void EmitShuffleButterfly(EmitContext& ctx, IR::Inst& inst, ScalarU32 value, ScalarU32 index,
const IR::Value& clamp, const IR::Value& segmentation_mask); const IR::Value& clamp, const IR::Value& segmentation_mask);
void EmitFSwizzleAdd(EmitContext& ctx, ScalarF32 op_a, ScalarF32 op_b, ScalarU32 swizzle); void EmitFSwizzleAdd(EmitContext& ctx, IR::Inst& inst, ScalarF32 op_a, ScalarF32 op_b,
ScalarU32 swizzle);
void EmitDPdxFine(EmitContext& ctx, IR::Inst& inst, ScalarF32 op_a); void EmitDPdxFine(EmitContext& ctx, IR::Inst& inst, ScalarF32 op_a);
void EmitDPdyFine(EmitContext& ctx, IR::Inst& inst, ScalarF32 op_a); void EmitDPdyFine(EmitContext& ctx, IR::Inst& inst, ScalarF32 op_a);
void EmitDPdxCoarse(EmitContext& ctx, IR::Inst& inst, ScalarF32 op_a); void EmitDPdxCoarse(EmitContext& ctx, IR::Inst& inst, ScalarF32 op_a);

13
src/shader_recompiler/backend/glasm/emit_glasm_warp.cpp
View file

@ -95,8 +95,17 @@ void EmitShuffleButterfly(EmitContext& ctx, IR::Inst& inst, ScalarU32 value, Sca
Shuffle(ctx, inst, value, index, clamp, segmentation_mask, "XOR"); Shuffle(ctx, inst, value, index, clamp, segmentation_mask, "XOR");
} }
void EmitFSwizzleAdd(EmitContext&, ScalarF32, ScalarF32, ScalarU32) { void EmitFSwizzleAdd(EmitContext& ctx, IR::Inst& inst, ScalarF32 op_a, ScalarF32 op_b,
throw NotImplementedException("GLASM instruction"); ScalarU32 swizzle) {
const auto ret{ctx.reg_alloc.Define(inst)};
ctx.Add("AND.U RC.z,{}.threadid,3;"
"SHL.U RC.z,RC.z,1;"
"SHR.U RC.z,{},RC.z;"
"AND.U RC.z,RC.z,3;"
"MUL.F RC.x,{},FSWZA[RC.z];"
"MUL.F RC.y,{},FSWZB[RC.z];"
"ADD.F {}.x,RC.x,RC.y;",
ctx.stage_name, swizzle, op_a, op_b, ret);
} }
void EmitDPdxFine(EmitContext& ctx, IR::Inst& inst, ScalarF32 p) { void EmitDPdxFine(EmitContext& ctx, IR::Inst& inst, ScalarF32 p) {