1 files changed, 414 insertions, 0 deletions
diff --git a/src/shader_recompiler/backend/glasm/emit_glasm_floating_point.cpp b/src/shader_recompiler/backend/glasm/emit_glasm_floating_point.cpp
new file mode 100644
index 000000000..4ed58619d
--- /dev/null
+++ b/src/shader_recompiler/backend/glasm/emit_glasm_floating_point.cpp
@@ -0,0 +1,414 @@
+// Copyright 2021 yuzu Emulator Project
+// Licensed under GPLv2 or any later version
+// Refer to the license.txt file included.
+
+#include <string_view>
+
+#include "shader_recompiler/backend/glasm/emit_context.h"
+#include "shader_recompiler/backend/glasm/emit_glasm_instructions.h"
+#include "shader_recompiler/frontend/ir/modifiers.h"
+#include "shader_recompiler/frontend/ir/value.h"
+
+namespace Shader::Backend::GLASM {
+namespace {
+template <typename InputType>
+void Compare(EmitContext& ctx, IR::Inst& inst, InputType lhs, InputType rhs, std::string_view op,
+             std::string_view type, bool ordered, bool inequality = false) {
+    const Register ret{ctx.reg_alloc.Define(inst)};
+    ctx.Add("{}.{} RC.x,{},{};", op, type, lhs, rhs);
+    if (ordered && inequality) {
+        ctx.Add("SEQ.{} RC.y,{},{};"
+                "SEQ.{} RC.z,{},{};"
+                "AND.U RC.x,RC.x,RC.y;"
+                "AND.U RC.x,RC.x,RC.z;"
+                "SNE.S {}.x,RC.x,0;",
+                type, lhs, lhs, type, rhs, rhs, ret);
+    } else if (ordered) {
+        ctx.Add("SNE.S {}.x,RC.x,0;", ret);
+    } else {
+        ctx.Add("SNE.{} RC.y,{},{};"
+                "SNE.{} RC.z,{},{};"
+                "OR.U RC.x,RC.x,RC.y;"
+                "OR.U RC.x,RC.x,RC.z;"
+                "SNE.S {}.x,RC.x,0;",
+                type, lhs, lhs, type, rhs, rhs, ret);
+    }
+}
+
+template <typename InputType>
+void Clamp(EmitContext& ctx, Register ret, InputType value, InputType min_value,
+           InputType max_value, std::string_view type) {
+    // Call MAX first to properly clamp nan to min_value instead
+    ctx.Add("MAX.{} RC.x,{},{};"
+            "MIN.{} {}.x,RC.x,{};",
+            type, min_value, value, type, ret, max_value);
+}
+
+std::string_view Precise(IR::Inst& inst) {
+    const bool precise{inst.Flags<IR::FpControl>().no_contraction};
+    return precise ? ".PREC" : "";
+}
+} // Anonymous namespace
+
+void EmitFPAbs16([[maybe_unused]] EmitContext& ctx, [[maybe_unused]] IR::Inst& inst,
+                 [[maybe_unused]] Register value) {
+    throw NotImplementedException("GLASM instruction");
+}
+
+void EmitFPAbs32(EmitContext& ctx, IR::Inst& inst, ScalarF32 value) {
+    ctx.Add("MOV.F {}.x,|{}|;", inst, value);
+}
+
+void EmitFPAbs64(EmitContext& ctx, IR::Inst& inst, ScalarF64 value) {
+    ctx.LongAdd("MOV.F64 {}.x,|{}|;", inst, value);
+}
+
+void EmitFPAdd16([[maybe_unused]] EmitContext& ctx, [[maybe_unused]] IR::Inst& inst,
+                 [[maybe_unused]] Register a, [[maybe_unused]] Register b) {
+    throw NotImplementedException("GLASM instruction");
+}
+
+void EmitFPAdd32(EmitContext& ctx, IR::Inst& inst, ScalarF32 a, ScalarF32 b) {
+    ctx.Add("ADD.F{} {}.x,{},{};", Precise(inst), ctx.reg_alloc.Define(inst), a, b);
+}
+
+void EmitFPAdd64(EmitContext& ctx, IR::Inst& inst, ScalarF64 a, ScalarF64 b) {
+    ctx.Add("ADD.F64{} {}.x,{},{};", Precise(inst), ctx.reg_alloc.LongDefine(inst), a, b);
+}
+
+void EmitFPFma16([[maybe_unused]] EmitContext& ctx, [[maybe_unused]] IR::Inst& inst,
+                 [[maybe_unused]] Register a, [[maybe_unused]] Register b,
+                 [[maybe_unused]] Register c) {
+    throw NotImplementedException("GLASM instruction");
+}
+
+void EmitFPFma32(EmitContext& ctx, IR::Inst& inst, ScalarF32 a, ScalarF32 b, ScalarF32 c) {
+    ctx.Add("MAD.F{} {}.x,{},{},{};", Precise(inst), ctx.reg_alloc.Define(inst), a, b, c);
+}
+
+void EmitFPFma64(EmitContext& ctx, IR::Inst& inst, ScalarF64 a, ScalarF64 b, ScalarF64 c) {
+    ctx.Add("MAD.F64{} {}.x,{},{},{};", Precise(inst), ctx.reg_alloc.LongDefine(inst), a, b, c);
+}
+
+void EmitFPMax32(EmitContext& ctx, IR::Inst& inst, ScalarF32 a, ScalarF32 b) {
+    ctx.Add("MAX.F {}.x,{},{};", inst, a, b);
+}
+
+void EmitFPMax64(EmitContext& ctx, IR::Inst& inst, ScalarF64 a, ScalarF64 b) {
+    ctx.LongAdd("MAX.F64 {}.x,{},{};", inst, a, b);
+}
+
+void EmitFPMin32(EmitContext& ctx, IR::Inst& inst, ScalarF32 a, ScalarF32 b) {
+    ctx.Add("MIN.F {}.x,{},{};", inst, a, b);
+}
+
+void EmitFPMin64(EmitContext& ctx, IR::Inst& inst, ScalarF64 a, ScalarF64 b) {
+    ctx.LongAdd("MIN.F64 {}.x,{},{};", inst, a, b);
+}
+
+void EmitFPMul16([[maybe_unused]] EmitContext& ctx, [[maybe_unused]] IR::Inst& inst,
+                 [[maybe_unused]] Register a, [[maybe_unused]] Register b) {
+    throw NotImplementedException("GLASM instruction");
+}
+
+void EmitFPMul32(EmitContext& ctx, IR::Inst& inst, ScalarF32 a, ScalarF32 b) {
+    ctx.Add("MUL.F{} {}.x,{},{};", Precise(inst), ctx.reg_alloc.Define(inst), a, b);
+}
+
+void EmitFPMul64(EmitContext& ctx, IR::Inst& inst, ScalarF64 a, ScalarF64 b) {
+    ctx.Add("MUL.F64{} {}.x,{},{};", Precise(inst), ctx.reg_alloc.LongDefine(inst), a, b);
+}
+
+void EmitFPNeg16([[maybe_unused]] EmitContext& ctx, [[maybe_unused]] Register value) {
+    throw NotImplementedException("GLASM instruction");
+}
+
+void EmitFPNeg32(EmitContext& ctx, IR::Inst& inst, ScalarRegister value) {
+    ctx.Add("MOV.F {}.x,-{};", inst, value);
+}
+
+void EmitFPNeg64(EmitContext& ctx, IR::Inst& inst, Register value) {
+    ctx.LongAdd("MOV.F64 {}.x,-{};", inst, value);
+}
+
+void EmitFPSin(EmitContext& ctx, IR::Inst& inst, ScalarF32 value) {
+    ctx.Add("SIN {}.x,{};", inst, value);
+}
+
+void EmitFPCos(EmitContext& ctx, IR::Inst& inst, ScalarF32 value) {
+    ctx.Add("COS {}.x,{};", inst, value);
+}
+
+void EmitFPExp2(EmitContext& ctx, IR::Inst& inst, ScalarF32 value) {
+    ctx.Add("EX2 {}.x,{};", inst, value);
+}
+
+void EmitFPLog2(EmitContext& ctx, IR::Inst& inst, ScalarF32 value) {
+    ctx.Add("LG2 {}.x,{};", inst, value);
+}
+
+void EmitFPRecip32(EmitContext& ctx, IR::Inst& inst, ScalarF32 value) {
+    ctx.Add("RCP {}.x,{};", inst, value);
+}
+
+void EmitFPRecip64([[maybe_unused]] EmitContext& ctx, [[maybe_unused]] Register value) {
+    throw NotImplementedException("GLASM instruction");
+}
+
+void EmitFPRecipSqrt32(EmitContext& ctx, IR::Inst& inst, ScalarF32 value) {
+    ctx.Add("RSQ {}.x,{};", inst, value);
+}
+
+void EmitFPRecipSqrt64([[maybe_unused]] EmitContext& ctx, [[maybe_unused]] Register value) {
+    throw NotImplementedException("GLASM instruction");
+}
+
+void EmitFPSqrt(EmitContext& ctx, IR::Inst& inst, ScalarF32 value) {
+    const Register ret{ctx.reg_alloc.Define(inst)};
+    ctx.Add("RSQ RC.x,{};RCP {}.x,RC.x;", value, ret);
+}
+
+void EmitFPSaturate16([[maybe_unused]] EmitContext& ctx, [[maybe_unused]] Register value) {
+    throw NotImplementedException("GLASM instruction");
+}
+
+void EmitFPSaturate32(EmitContext& ctx, IR::Inst& inst, ScalarF32 value) {
+    ctx.Add("MOV.F.SAT {}.x,{};", inst, value);
+}
+
+void EmitFPSaturate64([[maybe_unused]] EmitContext& ctx, [[maybe_unused]] Register value) {
+    throw NotImplementedException("GLASM instruction");
+}
+
+void EmitFPClamp16([[maybe_unused]] EmitContext& ctx, [[maybe_unused]] Register value,
+                   [[maybe_unused]] Register min_value, [[maybe_unused]] Register max_value) {
+    throw NotImplementedException("GLASM instruction");
+}
+
+void EmitFPClamp32(EmitContext& ctx, IR::Inst& inst, ScalarF32 value, ScalarF32 min_value,
+                   ScalarF32 max_value) {
+    Clamp(ctx, ctx.reg_alloc.Define(inst), value, min_value, max_value, "F");
+}
+
+void EmitFPClamp64(EmitContext& ctx, IR::Inst& inst, ScalarF64 value, ScalarF64 min_value,
+                   ScalarF64 max_value) {
+    Clamp(ctx, ctx.reg_alloc.LongDefine(inst), value, min_value, max_value, "F64");
+}
+
+void EmitFPRoundEven16([[maybe_unused]] EmitContext& ctx, [[maybe_unused]] Register value) {
+    throw NotImplementedException("GLASM instruction");
+}
+
+void EmitFPRoundEven32(EmitContext& ctx, IR::Inst& inst, ScalarF32 value) {
+    ctx.Add("ROUND.F {}.x,{};", inst, value);
+}
+
+void EmitFPRoundEven64(EmitContext& ctx, IR::Inst& inst, ScalarF64 value) {
+    ctx.LongAdd("ROUND.F64 {}.x,{};", inst, value);
+}
+
+void EmitFPFloor16([[maybe_unused]] EmitContext& ctx, [[maybe_unused]] Register value) {
+    throw NotImplementedException("GLASM instruction");
+}
+
+void EmitFPFloor32(EmitContext& ctx, IR::Inst& inst, ScalarF32 value) {
+    ctx.Add("FLR.F {}.x,{};", inst, value);
+}
+
+void EmitFPFloor64(EmitContext& ctx, IR::Inst& inst, ScalarF64 value) {
+    ctx.LongAdd("FLR.F64 {}.x,{};", inst, value);
+}
+
+void EmitFPCeil16([[maybe_unused]] EmitContext& ctx, [[maybe_unused]] Register value) {
+    throw NotImplementedException("GLASM instruction");
+}
+
+void EmitFPCeil32(EmitContext& ctx, IR::Inst& inst, ScalarF32 value) {
+    ctx.Add("CEIL.F {}.x,{};", inst, value);
+}
+
+void EmitFPCeil64(EmitContext& ctx, IR::Inst& inst, ScalarF64 value) {
+    ctx.LongAdd("CEIL.F64 {}.x,{};", inst, value);
+}
+
+void EmitFPTrunc16([[maybe_unused]] EmitContext& ctx, [[maybe_unused]] Register value) {
+    throw NotImplementedException("GLASM instruction");
+}
+
+void EmitFPTrunc32(EmitContext& ctx, IR::Inst& inst, ScalarF32 value) {
+    ctx.Add("TRUNC.F {}.x,{};", inst, value);
+}
+
+void EmitFPTrunc64(EmitContext& ctx, IR::Inst& inst, ScalarF64 value) {
+    ctx.LongAdd("TRUNC.F64 {}.x,{};", inst, value);
+}
+
+void EmitFPOrdEqual16([[maybe_unused]] EmitContext& ctx, [[maybe_unused]] Register lhs,
+                      [[maybe_unused]] Register rhs) {
+    throw NotImplementedException("GLASM instruction");
+}
+
+void EmitFPOrdEqual32(EmitContext& ctx, IR::Inst& inst, ScalarF32 lhs, ScalarF32 rhs) {
+    Compare(ctx, inst, lhs, rhs, "SEQ", "F", true);
+}
+
+void EmitFPOrdEqual64(EmitContext& ctx, IR::Inst& inst, ScalarF64 lhs, ScalarF64 rhs) {
+    Compare(ctx, inst, lhs, rhs, "SEQ", "F64", true);
+}
+
+void EmitFPUnordEqual16([[maybe_unused]] EmitContext& ctx, [[maybe_unused]] Register lhs,
+                        [[maybe_unused]] Register rhs) {
+    throw NotImplementedException("GLASM instruction");
+}
+
+void EmitFPUnordEqual32(EmitContext& ctx, IR::Inst& inst, ScalarF32 lhs, ScalarF32 rhs) {
+    Compare(ctx, inst, lhs, rhs, "SEQ", "F", false);
+}
+
+void EmitFPUnordEqual64(EmitContext& ctx, IR::Inst& inst, ScalarF64 lhs, ScalarF64 rhs) {
+    Compare(ctx, inst, lhs, rhs, "SEQ", "F64", false);
+}
+
+void EmitFPOrdNotEqual16([[maybe_unused]] EmitContext& ctx, [[maybe_unused]] Register lhs,
+                         [[maybe_unused]] Register rhs) {
+    throw NotImplementedException("GLASM instruction");
+}
+
+void EmitFPOrdNotEqual32(EmitContext& ctx, IR::Inst& inst, ScalarF32 lhs, ScalarF32 rhs) {
+    Compare(ctx, inst, lhs, rhs, "SNE", "F", true, true);
+}
+
+void EmitFPOrdNotEqual64(EmitContext& ctx, IR::Inst& inst, ScalarF64 lhs, ScalarF64 rhs) {
+    Compare(ctx, inst, lhs, rhs, "SNE", "F64", true, true);
+}
+
+void EmitFPUnordNotEqual16([[maybe_unused]] EmitContext& ctx, [[maybe_unused]] Register lhs,
+                           [[maybe_unused]] Register rhs) {
+    throw NotImplementedException("GLASM instruction");
+}
+
+void EmitFPUnordNotEqual32(EmitContext& ctx, IR::Inst& inst, ScalarF32 lhs, ScalarF32 rhs) {
+    Compare(ctx, inst, lhs, rhs, "SNE", "F", false, true);
+}
+
+void EmitFPUnordNotEqual64(EmitContext& ctx, IR::Inst& inst, ScalarF64 lhs, ScalarF64 rhs) {
+    Compare(ctx, inst, lhs, rhs, "SNE", "F64", false, true);
+}
+
+void EmitFPOrdLessThan16([[maybe_unused]] EmitContext& ctx, [[maybe_unused]] Register lhs,
+                         [[maybe_unused]] Register rhs) {
+    throw NotImplementedException("GLASM instruction");
+}
+
+void EmitFPOrdLessThan32(EmitContext& ctx, IR::Inst& inst, ScalarF32 lhs, ScalarF32 rhs) {
+    Compare(ctx, inst, lhs, rhs, "SLT", "F", true);
+}
+
+void EmitFPOrdLessThan64(EmitContext& ctx, IR::Inst& inst, ScalarF64 lhs, ScalarF64 rhs) {
+    Compare(ctx, inst, lhs, rhs, "SLT", "F64", true);
+}
+
+void EmitFPUnordLessThan16([[maybe_unused]] EmitContext& ctx, [[maybe_unused]] Register lhs,
+                           [[maybe_unused]] Register rhs) {
+    throw NotImplementedException("GLASM instruction");
+}
+
+void EmitFPUnordLessThan32(EmitContext& ctx, IR::Inst& inst, ScalarF32 lhs, ScalarF32 rhs) {
+    Compare(ctx, inst, lhs, rhs, "SLT", "F", false);
+}
+
+void EmitFPUnordLessThan64(EmitContext& ctx, IR::Inst& inst, ScalarF64 lhs, ScalarF64 rhs) {
+    Compare(ctx, inst, lhs, rhs, "SLT", "F64", false);
+}
+
+void EmitFPOrdGreaterThan16([[maybe_unused]] EmitContext& ctx, [[maybe_unused]] Register lhs,
+                            [[maybe_unused]] Register rhs) {
+    throw NotImplementedException("GLASM instruction");
+}
+
+void EmitFPOrdGreaterThan32(EmitContext& ctx, IR::Inst& inst, ScalarF32 lhs, ScalarF32 rhs) {
+    Compare(ctx, inst, lhs, rhs, "SGT", "F", true);
+}
+
+void EmitFPOrdGreaterThan64(EmitContext& ctx, IR::Inst& inst, ScalarF64 lhs, ScalarF64 rhs) {
+    Compare(ctx, inst, lhs, rhs, "SGT", "F64", true);
+}
+
+void EmitFPUnordGreaterThan16([[maybe_unused]] EmitContext& ctx, [[maybe_unused]] Register lhs,
+                              [[maybe_unused]] Register rhs) {
+    throw NotImplementedException("GLASM instruction");
+}
+
+void EmitFPUnordGreaterThan32(EmitContext& ctx, IR::Inst& inst, ScalarF32 lhs, ScalarF32 rhs) {
+    Compare(ctx, inst, lhs, rhs, "SGT", "F", false);
+}
+
+void EmitFPUnordGreaterThan64(EmitContext& ctx, IR::Inst& inst, ScalarF64 lhs, ScalarF64 rhs) {
+    Compare(ctx, inst, lhs, rhs, "SGT", "F64", false);
+}
+
+void EmitFPOrdLessThanEqual16([[maybe_unused]] EmitContext& ctx, [[maybe_unused]] Register lhs,
+                              [[maybe_unused]] Register rhs) {
+    throw NotImplementedException("GLASM instruction");
+}
+
+void EmitFPOrdLessThanEqual32(EmitContext& ctx, IR::Inst& inst, ScalarF32 lhs, ScalarF32 rhs) {
+    Compare(ctx, inst, lhs, rhs, "SLE", "F", true);
+}
+
+void EmitFPOrdLessThanEqual64(EmitContext& ctx, IR::Inst& inst, ScalarF64 lhs, ScalarF64 rhs) {
+    Compare(ctx, inst, lhs, rhs, "SLE", "F64", true);
+}
+
+void EmitFPUnordLessThanEqual16([[maybe_unused]] EmitContext& ctx, [[maybe_unused]] Register lhs,
+                                [[maybe_unused]] Register rhs) {
+    throw NotImplementedException("GLASM instruction");
+}
+
+void EmitFPUnordLessThanEqual32(EmitContext& ctx, IR::Inst& inst, ScalarF32 lhs, ScalarF32 rhs) {
+    Compare(ctx, inst, lhs, rhs, "SLE", "F", false);
+}
+
+void EmitFPUnordLessThanEqual64(EmitContext& ctx, IR::Inst& inst, ScalarF64 lhs, ScalarF64 rhs) {
+    Compare(ctx, inst, lhs, rhs, "SLE", "F64", false);
+}
+
+void EmitFPOrdGreaterThanEqual16([[maybe_unused]] EmitContext& ctx, [[maybe_unused]] Register lhs,
+                                 [[maybe_unused]] Register rhs) {
+    throw NotImplementedException("GLASM instruction");
+}
+
+void EmitFPOrdGreaterThanEqual32(EmitContext& ctx, IR::Inst& inst, ScalarF32 lhs, ScalarF32 rhs) {
+    Compare(ctx, inst, lhs, rhs, "SGE", "F", true);
+}
+
+void EmitFPOrdGreaterThanEqual64(EmitContext& ctx, IR::Inst& inst, ScalarF64 lhs, ScalarF64 rhs) {
+    Compare(ctx, inst, lhs, rhs, "SGE", "F64", true);
+}
+
+void EmitFPUnordGreaterThanEqual16([[maybe_unused]] EmitContext& ctx, [[maybe_unused]] Register lhs,
+                                   [[maybe_unused]] Register rhs) {
+    throw NotImplementedException("GLASM instruction");
+}
+
+void EmitFPUnordGreaterThanEqual32(EmitContext& ctx, IR::Inst& inst, ScalarF32 lhs, ScalarF32 rhs) {
+    Compare(ctx, inst, lhs, rhs, "SGE", "F", false);
+}
+
+void EmitFPUnordGreaterThanEqual64(EmitContext& ctx, IR::Inst& inst, ScalarF64 lhs, ScalarF64 rhs) {
+    Compare(ctx, inst, lhs, rhs, "SGE", "F64", false);
+}
+
+void EmitFPIsNan16([[maybe_unused]] EmitContext& ctx, [[maybe_unused]] Register value) {
+    throw NotImplementedException("GLASM instruction");
+}
+
+void EmitFPIsNan32(EmitContext& ctx, IR::Inst& inst, ScalarF32 value) {
+    Compare(ctx, inst, value, value, "SNE", "F", true, false);
+}
+
+void EmitFPIsNan64(EmitContext& ctx, IR::Inst& inst, ScalarF64 value) {
+    Compare(ctx, inst, value, value, "SNE", "F64", true, false);
+}
+
+} // namespace Shader::Backend::GLASM