glsl: Reorganize backend code, remove unneeded [[maybe_unused]]

11 files changed, 251 insertions, 314 deletions

diff --git a/src/shader_recompiler/backend/glsl/emit_glsl_control_flow.cpp b/src/shader_recompiler/backend/glsl/emit_glsl_control_flow.cpp
index e69de29bb..59522fdbd 100644
--- a/src/shader_recompiler/backend/glsl/emit_glsl_control_flow.cpp
+++ b/src/shader_recompiler/backend/glsl/emit_glsl_control_flow.cpp
@@ -0,0 +1,22 @@
+// 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/glsl/emit_context.h"
+#include "shader_recompiler/backend/glsl/emit_glsl_instructions.h"
+#include "shader_recompiler/exception.h"
+
+namespace Shader::Backend::GLSL {
+
+void EmitJoin(EmitContext&) {
+    throw NotImplementedException("Join shouldn't be emitted");
+}
+
+void EmitDemoteToHelperInvocation(EmitContext& ctx,
+                                  [[maybe_unused]] std::string_view continue_label) {
+    ctx.Add("discard;");
+}
+
+} // namespace Shader::Backend::GLSL
diff --git a/src/shader_recompiler/backend/glsl/emit_glsl_convert.cpp b/src/shader_recompiler/backend/glsl/emit_glsl_convert.cpp
index 9ed5bb319..8d823e466 100644
--- a/src/shader_recompiler/backend/glsl/emit_glsl_convert.cpp
+++ b/src/shader_recompiler/backend/glsl/emit_glsl_convert.cpp
@@ -14,8 +14,7 @@ void EmitConvertS16F16([[maybe_unused]] EmitContext& ctx, [[maybe_unused]] IR::I
     NotImplemented();
 }
 
-void EmitConvertS16F32([[maybe_unused]] EmitContext& ctx, [[maybe_unused]] IR::Inst& inst,
-                       [[maybe_unused]] std::string_view value) {
+void EmitConvertS16F32(EmitContext& ctx, IR::Inst& inst, std::string_view value) {
     ctx.AddS32("{}=int(float({}))&0xffff;", inst, value);
 }
 
@@ -29,13 +28,11 @@ void EmitConvertS32F16([[maybe_unused]] EmitContext& ctx, [[maybe_unused]] IR::I
     NotImplemented();
 }
 
-void EmitConvertS32F32([[maybe_unused]] EmitContext& ctx, [[maybe_unused]] IR::Inst& inst,
-                       [[maybe_unused]] std::string_view value) {
+void EmitConvertS32F32(EmitContext& ctx, IR::Inst& inst, std::string_view value) {
     ctx.AddS32("{}=int(float({}));", inst, value);
 }
 
-void EmitConvertS32F64([[maybe_unused]] EmitContext& ctx, [[maybe_unused]] IR::Inst& inst,
-                       [[maybe_unused]] std::string_view value) {
+void EmitConvertS32F64(EmitContext& ctx, IR::Inst& inst, std::string_view value) {
     ctx.AddS32("{}=int(double({}));", inst, value);
 }
 
@@ -44,13 +41,11 @@ void EmitConvertS64F16([[maybe_unused]] EmitContext& ctx, [[maybe_unused]] IR::I
     NotImplemented();
 }
 
-void EmitConvertS64F32([[maybe_unused]] EmitContext& ctx, [[maybe_unused]] IR::Inst& inst,
-                       [[maybe_unused]] std::string_view value) {
+void EmitConvertS64F32(EmitContext& ctx, IR::Inst& inst, std::string_view value) {
     ctx.AddS64("{}=int64_t(double(float({})));", inst, value);
 }
 
-void EmitConvertS64F64([[maybe_unused]] EmitContext& ctx, [[maybe_unused]] IR::Inst& inst,
-                       [[maybe_unused]] std::string_view value) {
+void EmitConvertS64F64(EmitContext& ctx, IR::Inst& inst, std::string_view value) {
     ctx.AddS64("{}=int64_t(double({}));", inst, value);
 }
 
@@ -74,13 +69,11 @@ void EmitConvertU32F16([[maybe_unused]] EmitContext& ctx, [[maybe_unused]] IR::I
     NotImplemented();
 }
 
-void EmitConvertU32F32([[maybe_unused]] EmitContext& ctx, [[maybe_unused]] IR::Inst& inst,
-                       [[maybe_unused]] std::string_view value) {
+void EmitConvertU32F32(EmitContext& ctx, IR::Inst& inst, std::string_view value) {
     ctx.AddU32("{}=uint(float({}));", inst, value);
 }
 
-void EmitConvertU32F64([[maybe_unused]] EmitContext& ctx, [[maybe_unused]] IR::Inst& inst,
-                       [[maybe_unused]] std::string_view value) {
+void EmitConvertU32F64(EmitContext& ctx, IR::Inst& inst, std::string_view value) {
     ctx.AddU32("{}=uint(double({}));", inst, value);
 }
 
@@ -89,23 +82,19 @@ void EmitConvertU64F16([[maybe_unused]] EmitContext& ctx, [[maybe_unused]] IR::I
     NotImplemented();
 }
 
-void EmitConvertU64F32([[maybe_unused]] EmitContext& ctx, [[maybe_unused]] IR::Inst& inst,
-                       [[maybe_unused]] std::string_view value) {
+void EmitConvertU64F32(EmitContext& ctx, IR::Inst& inst, std::string_view value) {
     ctx.AddU64("{}=uint64_t(float({}));", inst, value);
 }
 
-void EmitConvertU64F64([[maybe_unused]] EmitContext& ctx, [[maybe_unused]] IR::Inst& inst,
-                       [[maybe_unused]] std::string_view value) {
+void EmitConvertU64F64(EmitContext& ctx, IR::Inst& inst, std::string_view value) {
     ctx.AddU64("{}=uint64_t(double({}));", inst, value);
 }
 
-void EmitConvertU64U32([[maybe_unused]] EmitContext& ctx, [[maybe_unused]] IR::Inst& inst,
-                       [[maybe_unused]] std::string_view value) {
+void EmitConvertU64U32(EmitContext& ctx, IR::Inst& inst, std::string_view value) {
     ctx.AddU64("{}=uint64_t(uint({}));", inst, value);
 }
 
-void EmitConvertU32U64([[maybe_unused]] EmitContext& ctx, [[maybe_unused]] IR::Inst& inst,
-                       [[maybe_unused]] std::string_view value) {
+void EmitConvertU32U64(EmitContext& ctx, IR::Inst& inst, std::string_view value) {
     ctx.AddU32("{}=uint(uint64_t({}));", inst, value);
 }
 
@@ -119,13 +108,11 @@ void EmitConvertF32F16([[maybe_unused]] EmitContext& ctx, [[maybe_unused]] IR::I
     NotImplemented();
 }
 
-void EmitConvertF32F64([[maybe_unused]] EmitContext& ctx, [[maybe_unused]] IR::Inst& inst,
-                       [[maybe_unused]] std::string_view value) {
+void EmitConvertF32F64(EmitContext& ctx, IR::Inst& inst, std::string_view value) {
     ctx.AddF32("{}=float(double({}));", inst, value);
 }
 
-void EmitConvertF64F32([[maybe_unused]] EmitContext& ctx, [[maybe_unused]] IR::Inst& inst,
-                       [[maybe_unused]] std::string_view value) {
+void EmitConvertF64F32(EmitContext& ctx, IR::Inst& inst, std::string_view value) {
     ctx.AddF64("{}=double(float({}));", inst, value);
 }
 
@@ -179,13 +166,11 @@ void EmitConvertF32S16([[maybe_unused]] EmitContext& ctx, [[maybe_unused]] IR::I
     NotImplemented();
 }
 
-void EmitConvertF32S32([[maybe_unused]] EmitContext& ctx, [[maybe_unused]] IR::Inst& inst,
-                       [[maybe_unused]] std::string_view value) {
+void EmitConvertF32S32(EmitContext& ctx, IR::Inst& inst, std::string_view value) {
     ctx.AddF32("{}=float(int({}));", inst, value);
 }
 
-void EmitConvertF32S64([[maybe_unused]] EmitContext& ctx, [[maybe_unused]] IR::Inst& inst,
-                       [[maybe_unused]] std::string_view value) {
+void EmitConvertF32S64(EmitContext& ctx, IR::Inst& inst, std::string_view value) {
     ctx.AddF32("{}=float(double(int64_t({})));", inst, value);
 }
 
@@ -194,18 +179,15 @@ void EmitConvertF32U8([[maybe_unused]] EmitContext& ctx, [[maybe_unused]] IR::In
     NotImplemented();
 }
 
-void EmitConvertF32U16([[maybe_unused]] EmitContext& ctx, [[maybe_unused]] IR::Inst& inst,
-                       [[maybe_unused]] std::string_view value) {
+void EmitConvertF32U16(EmitContext& ctx, IR::Inst& inst, std::string_view value) {
     ctx.AddF32("{}=float(uint({}&0xffff));", inst, value);
 }
 
-void EmitConvertF32U32([[maybe_unused]] EmitContext& ctx, [[maybe_unused]] IR::Inst& inst,
-                       [[maybe_unused]] std::string_view value) {
+void EmitConvertF32U32(EmitContext& ctx, IR::Inst& inst, std::string_view value) {
     ctx.AddF32("{}=float(uint({}));", inst, value);
 }
 
-void EmitConvertF32U64([[maybe_unused]] EmitContext& ctx, [[maybe_unused]] IR::Inst& inst,
-                       [[maybe_unused]] std::string_view value) {
+void EmitConvertF32U64(EmitContext& ctx, IR::Inst& inst, std::string_view value) {
     ctx.AddF32("{}=float(double(uint64_t({})));", inst, value);
 }
 
@@ -219,13 +201,11 @@ void EmitConvertF64S16([[maybe_unused]] EmitContext& ctx, [[maybe_unused]] IR::I
     NotImplemented();
 }
 
-void EmitConvertF64S32([[maybe_unused]] EmitContext& ctx, [[maybe_unused]] IR::Inst& inst,
-                       [[maybe_unused]] std::string_view value) {
+void EmitConvertF64S32(EmitContext& ctx, IR::Inst& inst, std::string_view value) {
     ctx.AddF64("{}=double(int({}));", inst, value);
 }
 
-void EmitConvertF64S64([[maybe_unused]] EmitContext& ctx, [[maybe_unused]] IR::Inst& inst,
-                       [[maybe_unused]] std::string_view value) {
+void EmitConvertF64S64(EmitContext& ctx, IR::Inst& inst, std::string_view value) {
     ctx.AddF64("{}=double(int64_t({}));", inst, value);
 }
 
@@ -239,13 +219,11 @@ void EmitConvertF64U16([[maybe_unused]] EmitContext& ctx, [[maybe_unused]] IR::I
     NotImplemented();
 }
 
-void EmitConvertF64U32([[maybe_unused]] EmitContext& ctx, [[maybe_unused]] IR::Inst& inst,
-                       [[maybe_unused]] std::string_view value) {
+void EmitConvertF64U32(EmitContext& ctx, IR::Inst& inst, std::string_view value) {
     ctx.AddF64("{}=double(uint({}));", inst, value);
 }
 
-void EmitConvertF64U64([[maybe_unused]] EmitContext& ctx, [[maybe_unused]] IR::Inst& inst,
-                       [[maybe_unused]] std::string_view value) {
+void EmitConvertF64U64(EmitContext& ctx, IR::Inst& inst, std::string_view value) {
     ctx.AddF64("{}=double(uint64_t({}));", inst, value);
 }
 
diff --git a/src/shader_recompiler/backend/glsl/emit_glsl_image.cpp b/src/shader_recompiler/backend/glsl/emit_glsl_image.cpp
index e3a69e3a5..00fe288e2 100644
--- a/src/shader_recompiler/backend/glsl/emit_glsl_image.cpp
+++ b/src/shader_recompiler/backend/glsl/emit_glsl_image.cpp
@@ -12,8 +12,7 @@
 
 namespace Shader::Backend::GLSL {
 namespace {
-std::string Texture(EmitContext& ctx, const IR::TextureInstInfo& info,
-                    [[maybe_unused]] const IR::Value& index) {
+std::string Texture(EmitContext& ctx, const IR::TextureInstInfo& info) {
     if (info.type == TextureType::Buffer) {
         return fmt::format("tex{}", ctx.texture_buffer_bindings.at(info.descriptor_index));
     } else {
@@ -21,8 +20,7 @@ std::string Texture(EmitContext& ctx, const IR::TextureInstInfo& info,
     }
 }
 
-std::string Image(EmitContext& ctx, const IR::TextureInstInfo& info,
-                  [[maybe_unused]] const IR::Value& index) {
+std::string Image(EmitContext& ctx, const IR::TextureInstInfo& info) {
     if (info.type == TextureType::Buffer) {
         return fmt::format("img{}", ctx.image_buffer_bindings.at(info.descriptor_index));
     } else {
@@ -139,16 +137,14 @@ IR::Inst* PrepareSparse(IR::Inst& inst) {
 }
 } // Anonymous namespace
 
-void EmitImageSampleImplicitLod([[maybe_unused]] EmitContext& ctx, [[maybe_unused]] IR::Inst& inst,
-                                [[maybe_unused]] const IR::Value& index,
-                                [[maybe_unused]] std::string_view coords,
-                                [[maybe_unused]] std::string_view bias_lc,
-                                [[maybe_unused]] const IR::Value& offset) {
+void EmitImageSampleImplicitLod(EmitContext& ctx, IR::Inst& inst,
+                                [[maybe_unused]] const IR::Value& index, std::string_view coords,
+                                std::string_view bias_lc, const IR::Value& offset) {
     const auto info{inst.Flags<IR::TextureInstInfo>()};
     if (info.has_lod_clamp) {
         throw NotImplementedException("EmitImageSampleImplicitLod Lod clamp samples");
     }
-    const auto texture{Texture(ctx, info, index)};
+    const auto texture{Texture(ctx, info)};
     const auto bias{info.has_bias ? fmt::format(",{}", bias_lc) : ""};
     const auto texel{ctx.var_alloc.Define(inst, GlslVarType::F32x4)};
     const auto sparse_inst{PrepareSparse(inst)};
@@ -179,11 +175,9 @@ void EmitImageSampleImplicitLod([[maybe_unused]] EmitContext& ctx, [[maybe_unuse
     }
 }
 
-void EmitImageSampleExplicitLod([[maybe_unused]] EmitContext& ctx, [[maybe_unused]] IR::Inst& inst,
-                                [[maybe_unused]] const IR::Value& index,
-                                [[maybe_unused]] std::string_view coords,
-                                [[maybe_unused]] std::string_view lod_lc,
-                                [[maybe_unused]] const IR::Value& offset) {
+void EmitImageSampleExplicitLod(EmitContext& ctx, IR::Inst& inst,
+                                [[maybe_unused]] const IR::Value& index, std::string_view coords,
+                                std::string_view lod_lc, const IR::Value& offset) {
     const auto info{inst.Flags<IR::TextureInstInfo>()};
     if (info.has_bias) {
         throw NotImplementedException("EmitImageSampleExplicitLod Bias texture samples");
@@ -191,7 +185,7 @@ void EmitImageSampleExplicitLod([[maybe_unused]] EmitContext& ctx, [[maybe_unuse
     if (info.has_lod_clamp) {
         throw NotImplementedException("EmitImageSampleExplicitLod Lod clamp samples");
     }
-    const auto texture{Texture(ctx, info, index)};
+    const auto texture{Texture(ctx, info)};
     const auto texel{ctx.var_alloc.Define(inst, GlslVarType::F32x4)};
     const auto sparse_inst{PrepareSparse(inst)};
     if (!sparse_inst) {
@@ -214,13 +208,10 @@ void EmitImageSampleExplicitLod([[maybe_unused]] EmitContext& ctx, [[maybe_unuse
     }
 }
 
-void EmitImageSampleDrefImplicitLod([[maybe_unused]] EmitContext& ctx,
-                                    [[maybe_unused]] IR::Inst& inst,
+void EmitImageSampleDrefImplicitLod(EmitContext& ctx, IR::Inst& inst,
                                     [[maybe_unused]] const IR::Value& index,
-                                    [[maybe_unused]] std::string_view coords,
-                                    [[maybe_unused]] std::string_view dref,
-                                    [[maybe_unused]] std::string_view bias_lc,
-                                    [[maybe_unused]] const IR::Value& offset) {
+                                    std::string_view coords, std::string_view dref,
+                                    std::string_view bias_lc, const IR::Value& offset) {
     const auto info{inst.Flags<IR::TextureInstInfo>()};
     const auto sparse_inst{PrepareSparse(inst)};
     if (sparse_inst) {
@@ -232,7 +223,7 @@ void EmitImageSampleDrefImplicitLod([[maybe_unused]] EmitContext& ctx,
     if (info.has_lod_clamp) {
         throw NotImplementedException("EmitImageSampleDrefImplicitLod Lod clamp samples");
     }
-    const auto texture{Texture(ctx, info, index)};
+    const auto texture{Texture(ctx, info)};
     const auto bias{info.has_bias ? fmt::format(",{}", bias_lc) : ""};
     const bool needs_shadow_ext{NeedsShadowLodExt(info.type)};
     const auto cast{needs_shadow_ext ? "vec4" : "vec3"};
@@ -272,13 +263,10 @@ void EmitImageSampleDrefImplicitLod([[maybe_unused]] EmitContext& ctx,
     }
 }
 
-void EmitImageSampleDrefExplicitLod([[maybe_unused]] EmitContext& ctx,
-                                    [[maybe_unused]] IR::Inst& inst,
+void EmitImageSampleDrefExplicitLod(EmitContext& ctx, IR::Inst& inst,
                                     [[maybe_unused]] const IR::Value& index,
-                                    [[maybe_unused]] std::string_view coords,
-                                    [[maybe_unused]] std::string_view dref,
-                                    [[maybe_unused]] std::string_view lod_lc,
-                                    [[maybe_unused]] const IR::Value& offset) {
+                                    std::string_view coords, std::string_view dref,
+                                    std::string_view lod_lc, const IR::Value& offset) {
     const auto info{inst.Flags<IR::TextureInstInfo>()};
     const auto sparse_inst{PrepareSparse(inst)};
     if (sparse_inst) {
@@ -290,7 +278,7 @@ void EmitImageSampleDrefExplicitLod([[maybe_unused]] EmitContext& ctx,
     if (info.has_lod_clamp) {
         throw NotImplementedException("EmitImageSampleDrefExplicitLod Lod clamp samples");
     }
-    const auto texture{Texture(ctx, info, index)};
+    const auto texture{Texture(ctx, info)};
     const bool needs_shadow_ext{NeedsShadowLodExt(info.type)};
     const bool use_grad{!ctx.profile.support_gl_texture_shadow_lod && needs_shadow_ext};
     const auto cast{needs_shadow_ext ? "vec4" : "vec3"};
@@ -325,13 +313,10 @@ void EmitImageSampleDrefExplicitLod([[maybe_unused]] EmitContext& ctx,
     }
 }
 
-void EmitImageGather([[maybe_unused]] EmitContext& ctx, [[maybe_unused]] IR::Inst& inst,
-                     [[maybe_unused]] const IR::Value& index,
-                     [[maybe_unused]] std::string_view coords,
-                     [[maybe_unused]] const IR::Value& offset,
-                     [[maybe_unused]] const IR::Value& offset2) {
+void EmitImageGather(EmitContext& ctx, IR::Inst& inst, [[maybe_unused]] const IR::Value& index,
+                     std::string_view coords, const IR::Value& offset, const IR::Value& offset2) {
     const auto info{inst.Flags<IR::TextureInstInfo>()};
-    const auto texture{Texture(ctx, info, index)};
+    const auto texture{Texture(ctx, info)};
     const auto texel{ctx.var_alloc.Define(inst, GlslVarType::F32x4)};
     const auto sparse_inst{PrepareSparse(inst)};
     if (!sparse_inst) {
@@ -370,14 +355,11 @@ void EmitImageGather([[maybe_unused]] EmitContext& ctx, [[maybe_unused]] IR::Ins
               info.gather_component);
 }
 
-void EmitImageGatherDref([[maybe_unused]] EmitContext& ctx, [[maybe_unused]] IR::Inst& inst,
-                         [[maybe_unused]] const IR::Value& index,
-                         [[maybe_unused]] std::string_view coords,
-                         [[maybe_unused]] const IR::Value& offset,
-                         [[maybe_unused]] const IR::Value& offset2,
-                         [[maybe_unused]] std::string_view dref) {
+void EmitImageGatherDref(EmitContext& ctx, IR::Inst& inst, [[maybe_unused]] const IR::Value& index,
+                         std::string_view coords, const IR::Value& offset, const IR::Value& offset2,
+                         std::string_view dref) {
     const auto info{inst.Flags<IR::TextureInstInfo>()};
-    const auto texture{Texture(ctx, info, index)};
+    const auto texture{Texture(ctx, info)};
     const auto texel{ctx.var_alloc.Define(inst, GlslVarType::F32x4)};
     const auto sparse_inst{PrepareSparse(inst)};
     if (!sparse_inst) {
@@ -413,10 +395,8 @@ void EmitImageGatherDref([[maybe_unused]] EmitContext& ctx, [[maybe_unused]] IR:
               *sparse_inst, texture, CastToIntVec(coords, info), dref, offsets, texel);
 }
 
-void EmitImageFetch([[maybe_unused]] EmitContext& ctx, [[maybe_unused]] IR::Inst& inst,
-                    [[maybe_unused]] const IR::Value& index,
-                    [[maybe_unused]] std::string_view coords,
-                    [[maybe_unused]] std::string_view offset, [[maybe_unused]] std::string_view lod,
+void EmitImageFetch(EmitContext& ctx, IR::Inst& inst, [[maybe_unused]] const IR::Value& index,
+                    std::string_view coords, std::string_view offset, std::string_view lod,
                     [[maybe_unused]] std::string_view ms) {
     const auto info{inst.Flags<IR::TextureInstInfo>()};
     if (info.has_bias) {
@@ -425,7 +405,7 @@ void EmitImageFetch([[maybe_unused]] EmitContext& ctx, [[maybe_unused]] IR::Inst
     if (info.has_lod_clamp) {
         throw NotImplementedException("EmitImageFetch Lod clamp samples");
     }
-    const auto texture{Texture(ctx, info, index)};
+    const auto texture{Texture(ctx, info)};
     const auto sparse_inst{PrepareSparse(inst)};
     const auto texel{ctx.var_alloc.Define(inst, GlslVarType::F32x4)};
     if (!sparse_inst) {
@@ -453,11 +433,10 @@ void EmitImageFetch([[maybe_unused]] EmitContext& ctx, [[maybe_unused]] IR::Inst
     }
 }
 
-void EmitImageQueryDimensions([[maybe_unused]] EmitContext& ctx, [[maybe_unused]] IR::Inst& inst,
-                              [[maybe_unused]] const IR::Value& index,
-                              [[maybe_unused]] std::string_view lod) {
+void EmitImageQueryDimensions(EmitContext& ctx, IR::Inst& inst,
+                              [[maybe_unused]] const IR::Value& index, std::string_view lod) {
     const auto info{inst.Flags<IR::TextureInstInfo>()};
-    const auto texture{Texture(ctx, info, index)};
+    const auto texture{Texture(ctx, info)};
     switch (info.type) {
     case TextureType::Color1D:
         return ctx.AddU32x4(
@@ -481,20 +460,16 @@ void EmitImageQueryDimensions([[maybe_unused]] EmitContext& ctx, [[maybe_unused]
     throw LogicError("Unspecified image type {}", info.type.Value());
 }
 
-void EmitImageQueryLod([[maybe_unused]] EmitContext& ctx, [[maybe_unused]] IR::Inst& inst,
-                       [[maybe_unused]] const IR::Value& index,
-                       [[maybe_unused]] std::string_view coords) {
+void EmitImageQueryLod(EmitContext& ctx, IR::Inst& inst, [[maybe_unused]] const IR::Value& index,
+                       std::string_view coords) {
     const auto info{inst.Flags<IR::TextureInstInfo>()};
-    const auto texture{Texture(ctx, info, index)};
+    const auto texture{Texture(ctx, info)};
     return ctx.AddF32x4("{}=vec4(textureQueryLod({},{}),0.0,0.0);", inst, texture, coords);
 }
 
-void EmitImageGradient([[maybe_unused]] EmitContext& ctx, [[maybe_unused]] IR::Inst& inst,
-                       [[maybe_unused]] const IR::Value& index,
-                       [[maybe_unused]] std::string_view coords,
-                       [[maybe_unused]] const IR::Value& derivatives,
-                       [[maybe_unused]] const IR::Value& offset,
-                       [[maybe_unused]] const IR::Value& lod_clamp) {
+void EmitImageGradient(EmitContext& ctx, IR::Inst& inst, [[maybe_unused]] const IR::Value& index,
+                       std::string_view coords, const IR::Value& derivatives,
+                       const IR::Value& offset, [[maybe_unused]] const IR::Value& lod_clamp) {
     const auto info{inst.Flags<IR::TextureInstInfo>()};
     if (info.has_lod_clamp) {
         throw NotImplementedException("EmitImageGradient Lod clamp samples");
@@ -506,7 +481,7 @@ void EmitImageGradient([[maybe_unused]] EmitContext& ctx, [[maybe_unused]] IR::I
     if (!offset.IsEmpty()) {
         throw NotImplementedException("EmitImageGradient offset");
     }
-    const auto texture{Texture(ctx, info, index)};
+    const auto texture{Texture(ctx, info)};
     const auto texel{ctx.var_alloc.Define(inst, GlslVarType::F32x4)};
     const bool multi_component{info.num_derivates > 1 || info.has_lod_clamp};
     const auto derivatives_vec{ctx.var_alloc.Consume(derivatives)};
@@ -519,63 +494,65 @@ void EmitImageGradient([[maybe_unused]] EmitContext& ctx, [[maybe_unused]] IR::I
     }
 }
 
-void EmitImageRead([[maybe_unused]] EmitContext& ctx, [[maybe_unused]] IR::Inst& inst,
-                   [[maybe_unused]] const IR::Value& index,
-                   [[maybe_unused]] std::string_view coords) {
+void EmitImageRead(EmitContext& ctx, IR::Inst& inst, [[maybe_unused]] const IR::Value& index,
+                   std::string_view coords) {
     const auto info{inst.Flags<IR::TextureInstInfo>()};
     const auto sparse_inst{PrepareSparse(inst)};
     if (sparse_inst) {
         throw NotImplementedException("EmitImageRead Sparse");
     }
-    const auto image{Image(ctx, info, index)};
+    const auto image{Image(ctx, info)};
     ctx.AddU32x4("{}=uvec4(imageLoad({},{}));", inst, image, TexelFetchCastToInt(coords, info));
 }
 
-void EmitImageWrite([[maybe_unused]] EmitContext& ctx, [[maybe_unused]] IR::Inst& inst,
-                    [[maybe_unused]] const IR::Value& index,
-                    [[maybe_unused]] std::string_view coords,
-                    [[maybe_unused]] std::string_view color) {
+void EmitImageWrite(EmitContext& ctx, IR::Inst& inst, [[maybe_unused]] const IR::Value& index,
+                    std::string_view coords, std::string_view color) {
     const auto info{inst.Flags<IR::TextureInstInfo>()};
-    const auto image{Image(ctx, info, index)};
+    const auto image{Image(ctx, info)};
     ctx.Add("imageStore({},{},{});", image, TexelFetchCastToInt(coords, info), color);
 }
 
-void EmitImageAtomicIAdd32(EmitContext& ctx, IR::Inst& inst, const IR::Value& index,
-                           std::string_view coords, std::string_view value) {
+void EmitImageAtomicIAdd32(EmitContext& ctx, IR::Inst& inst,
+                           [[maybe_unused]] const IR::Value& index, std::string_view coords,
+                           std::string_view value) {
     const auto info{inst.Flags<IR::TextureInstInfo>()};
-    const auto image{Image(ctx, info, index)};
+    const auto image{Image(ctx, info)};
     ctx.AddU32("{}=imageAtomicAdd({},{},{});", inst, image, TexelFetchCastToInt(coords, info),
                value);
 }
 
-void EmitImageAtomicSMin32(EmitContext& ctx, IR::Inst& inst, const IR::Value& index,
-                           std::string_view coords, std::string_view value) {
+void EmitImageAtomicSMin32(EmitContext& ctx, IR::Inst& inst,
+                           [[maybe_unused]] const IR::Value& index, std::string_view coords,
+                           std::string_view value) {
     const auto info{inst.Flags<IR::TextureInstInfo>()};
-    const auto image{Image(ctx, info, index)};
+    const auto image{Image(ctx, info)};
     ctx.AddU32("{}=imageAtomicMin({},{},int({}));", inst, image, TexelFetchCastToInt(coords, info),
                value);
 }
 
-void EmitImageAtomicUMin32(EmitContext& ctx, IR::Inst& inst, const IR::Value& index,
-                           std::string_view coords, std::string_view value) {
+void EmitImageAtomicUMin32(EmitContext& ctx, IR::Inst& inst,
+                           [[maybe_unused]] const IR::Value& index, std::string_view coords,
+                           std::string_view value) {
     const auto info{inst.Flags<IR::TextureInstInfo>()};
-    const auto image{Image(ctx, info, index)};
+    const auto image{Image(ctx, info)};
     ctx.AddU32("{}=imageAtomicMin({},{},uint({}));", inst, image, TexelFetchCastToInt(coords, info),
                value);
 }
 
-void EmitImageAtomicSMax32(EmitContext& ctx, IR::Inst& inst, const IR::Value& index,
-                           std::string_view coords, std::string_view value) {
+void EmitImageAtomicSMax32(EmitContext& ctx, IR::Inst& inst,
+                           [[maybe_unused]] const IR::Value& index, std::string_view coords,
+                           std::string_view value) {
     const auto info{inst.Flags<IR::TextureInstInfo>()};
-    const auto image{Image(ctx, info, index)};
+    const auto image{Image(ctx, info)};
     ctx.AddU32("{}=imageAtomicMax({},{},int({}));", inst, image, TexelFetchCastToInt(coords, info),
                value);
 }
 
-void EmitImageAtomicUMax32(EmitContext& ctx, IR::Inst& inst, const IR::Value& index,
-                           std::string_view coords, std::string_view value) {
+void EmitImageAtomicUMax32(EmitContext& ctx, IR::Inst& inst,
+                           [[maybe_unused]] const IR::Value& index, std::string_view coords,
+                           std::string_view value) {
     const auto info{inst.Flags<IR::TextureInstInfo>()};
-    const auto image{Image(ctx, info, index)};
+    const auto image{Image(ctx, info)};
     ctx.AddU32("{}=imageAtomicMax({},{},uint({}));", inst, image, TexelFetchCastToInt(coords, info),
                value);
 }
@@ -590,34 +567,35 @@ void EmitImageAtomicDec32(EmitContext&, IR::Inst&, const IR::Value&, std::string
     NotImplemented();
 }
 
-void EmitImageAtomicAnd32(EmitContext& ctx, IR::Inst& inst, const IR::Value& index,
+void EmitImageAtomicAnd32(EmitContext& ctx, IR::Inst& inst, [[maybe_unused]] const IR::Value& index,
                           std::string_view coords, std::string_view value) {
     const auto info{inst.Flags<IR::TextureInstInfo>()};
-    const auto image{Image(ctx, info, index)};
+    const auto image{Image(ctx, info)};
     ctx.AddU32("{}=imageAtomicAnd({},{},{});", inst, image, TexelFetchCastToInt(coords, info),
                value);
 }
 
-void EmitImageAtomicOr32(EmitContext& ctx, IR::Inst& inst, const IR::Value& index,
+void EmitImageAtomicOr32(EmitContext& ctx, IR::Inst& inst, [[maybe_unused]] const IR::Value& index,
                          std::string_view coords, std::string_view value) {
     const auto info{inst.Flags<IR::TextureInstInfo>()};
-    const auto image{Image(ctx, info, index)};
+    const auto image{Image(ctx, info)};
     ctx.AddU32("{}=imageAtomicOr({},{},{});", inst, image, TexelFetchCastToInt(coords, info),
                value);
 }
 
-void EmitImageAtomicXor32(EmitContext& ctx, IR::Inst& inst, const IR::Value& index,
+void EmitImageAtomicXor32(EmitContext& ctx, IR::Inst& inst, [[maybe_unused]] const IR::Value& index,
                           std::string_view coords, std::string_view value) {
     const auto info{inst.Flags<IR::TextureInstInfo>()};
-    const auto image{Image(ctx, info, index)};
+    const auto image{Image(ctx, info)};
     ctx.AddU32("{}=imageAtomicXor({},{},{});", inst, image, TexelFetchCastToInt(coords, info),
                value);
 }
 
-void EmitImageAtomicExchange32(EmitContext& ctx, IR::Inst& inst, const IR::Value& index,
-                               std::string_view coords, std::string_view value) {
+void EmitImageAtomicExchange32(EmitContext& ctx, IR::Inst& inst,
+                               [[maybe_unused]] const IR::Value& index, std::string_view coords,
+                               std::string_view value) {
     const auto info{inst.Flags<IR::TextureInstInfo>()};
-    const auto image{Image(ctx, info, index)};
+    const auto image{Image(ctx, info)};
     ctx.AddU32("{}=imageAtomicExchange({},{},{});", inst, image, TexelFetchCastToInt(coords, info),
                value);
 }
diff --git a/src/shader_recompiler/backend/glsl/emit_glsl_image_atomic.cpp b/src/shader_recompiler/backend/glsl/emit_glsl_image_atomic.cpp
deleted file mode 100644
index e69de29bb..000000000
--- a/src/shader_recompiler/backend/glsl/emit_glsl_image_atomic.cpp
+++ /dev/null
diff --git a/src/shader_recompiler/backend/glsl/emit_glsl_instructions.h b/src/shader_recompiler/backend/glsl/emit_glsl_instructions.h
index 12094139f..1257575c0 100644
--- a/src/shader_recompiler/backend/glsl/emit_glsl_instructions.h
+++ b/src/shader_recompiler/backend/glsl/emit_glsl_instructions.h
@@ -30,14 +30,7 @@ void EmitIdentity(EmitContext& ctx, IR::Inst& inst, const IR::Value& value);
 void EmitConditionRef(EmitContext& ctx, IR::Inst& inst, const IR::Value& value);
 void EmitReference(EmitContext& ctx, const IR::Value& value);
 void EmitPhiMove(EmitContext& ctx, const IR::Value& phi, const IR::Value& value);
-void EmitBranch(EmitContext& ctx, std::string_view label);
-void EmitBranchConditional(EmitContext& ctx, std::string_view condition,
-                           std::string_view true_label, std::string_view false_label);
-void EmitLoopMerge(EmitContext& ctx, std::string_view merge_label, std::string_view continue_label);
-void EmitSelectionMerge(EmitContext& ctx, std::string_view merge_label);
-void EmitReturn(EmitContext& ctx);
 void EmitJoin(EmitContext& ctx);
-void EmitUnreachable(EmitContext& ctx);
 void EmitDemoteToHelperInvocation(EmitContext& ctx, std::string_view continue_label);
 void EmitBarrier(EmitContext& ctx);
 void EmitWorkgroupMemoryBarrier(EmitContext& ctx);
diff --git a/src/shader_recompiler/backend/glsl/emit_glsl_integer.cpp b/src/shader_recompiler/backend/glsl/emit_glsl_integer.cpp
index 1c7413cd4..6e04c6cb2 100644
--- a/src/shader_recompiler/backend/glsl/emit_glsl_integer.cpp
+++ b/src/shader_recompiler/backend/glsl/emit_glsl_integer.cpp
@@ -156,13 +156,11 @@ void EmitBitwiseNot32(EmitContext& ctx, IR::Inst& inst, std::string_view value)
     ctx.AddU32("{}=~{};", inst, value);
 }
 
-void EmitFindSMsb32([[maybe_unused]] EmitContext& ctx, [[maybe_unused]] IR::Inst& inst,
-                    [[maybe_unused]] std::string_view value) {
+void EmitFindSMsb32(EmitContext& ctx, IR::Inst& inst, std::string_view value) {
     ctx.AddU32("{}=findMSB(int({}));", inst, value);
 }
 
-void EmitFindUMsb32([[maybe_unused]] EmitContext& ctx, [[maybe_unused]] IR::Inst& inst,
-                    [[maybe_unused]] std::string_view value) {
+void EmitFindUMsb32(EmitContext& ctx, IR::Inst& inst, std::string_view value) {
     ctx.AddU32("{}=findMSB(uint({}));", inst, value);
 }
 
diff --git a/src/shader_recompiler/backend/glsl/emit_glsl_memory.cpp b/src/shader_recompiler/backend/glsl/emit_glsl_memory.cpp
index 500e5c290..af3dadf71 100644
--- a/src/shader_recompiler/backend/glsl/emit_glsl_memory.cpp
+++ b/src/shader_recompiler/backend/glsl/emit_glsl_memory.cpp
@@ -21,19 +21,19 @@ void SsboWriteCas(EmitContext& ctx, const IR::Value& binding, std::string_view o
 }
 } // Anonymous namespace
 
-void EmitLoadGlobalU8([[maybe_unused]] EmitContext& ctx) {
+void EmitLoadGlobalU8(EmitContext&) {
     NotImplemented();
 }
 
-void EmitLoadGlobalS8([[maybe_unused]] EmitContext& ctx) {
+void EmitLoadGlobalS8(EmitContext&) {
     NotImplemented();
 }
 
-void EmitLoadGlobalU16([[maybe_unused]] EmitContext& ctx) {
+void EmitLoadGlobalU16(EmitContext&) {
     NotImplemented();
 }
 
-void EmitLoadGlobalS16([[maybe_unused]] EmitContext& ctx) {
+void EmitLoadGlobalS16(EmitContext&) {
     NotImplemented();
 }
 
@@ -49,19 +49,19 @@ void EmitLoadGlobal128(EmitContext& ctx, IR::Inst& inst, std::string_view addres
     ctx.AddU32x4("{}=LoadGlobal128({});", inst, address);
 }
 
-void EmitWriteGlobalU8([[maybe_unused]] EmitContext& ctx) {
+void EmitWriteGlobalU8(EmitContext&) {
     NotImplemented();
 }
 
-void EmitWriteGlobalS8([[maybe_unused]] EmitContext& ctx) {
+void EmitWriteGlobalS8(EmitContext&) {
     NotImplemented();
 }
 
-void EmitWriteGlobalU16([[maybe_unused]] EmitContext& ctx) {
+void EmitWriteGlobalU16(EmitContext&) {
     NotImplemented();
 }
 
-void EmitWriteGlobalS16([[maybe_unused]] EmitContext& ctx) {
+void EmitWriteGlobalS16(EmitContext&) {
     NotImplemented();
 }
 
@@ -77,33 +77,29 @@ void EmitWriteGlobal128(EmitContext& ctx, std::string_view address, std::string_
     ctx.Add("WriteGlobal128({},{});", address, value);
 }
 
-void EmitLoadStorageU8([[maybe_unused]] EmitContext& ctx, IR::Inst& inst,
-                       [[maybe_unused]] const IR::Value& binding,
-                       [[maybe_unused]] const IR::Value& offset) {
+void EmitLoadStorageU8(EmitContext& ctx, IR::Inst& inst, const IR::Value& binding,
+                       const IR::Value& offset) {
     const auto offset_var{ctx.var_alloc.Consume(offset)};
     ctx.AddU32("{}=bitfieldExtract({}_ssbo{}[{}>>2],int({}%4)*8,8);", inst, ctx.stage_name,
                binding.U32(), offset_var, offset_var);
 }
 
-void EmitLoadStorageS8([[maybe_unused]] EmitContext& ctx, IR::Inst& inst,
-                       [[maybe_unused]] const IR::Value& binding,
-                       [[maybe_unused]] const IR::Value& offset) {
+void EmitLoadStorageS8(EmitContext& ctx, IR::Inst& inst, const IR::Value& binding,
+                       const IR::Value& offset) {
     const auto offset_var{ctx.var_alloc.Consume(offset)};
     ctx.AddS32("{}=bitfieldExtract(int({}_ssbo{}[{}>>2]),int({}%4)*8,8);", inst, ctx.stage_name,
                binding.U32(), offset_var, offset_var);
 }
 
-void EmitLoadStorageU16([[maybe_unused]] EmitContext& ctx, IR::Inst& inst,
-                        [[maybe_unused]] const IR::Value& binding,
-                        [[maybe_unused]] const IR::Value& offset) {
+void EmitLoadStorageU16(EmitContext& ctx, IR::Inst& inst, const IR::Value& binding,
+                        const IR::Value& offset) {
     const auto offset_var{ctx.var_alloc.Consume(offset)};
     ctx.AddU32("{}=bitfieldExtract({}_ssbo{}[{}>>2],int(({}>>1)%2)*16,16);", inst, ctx.stage_name,
                binding.U32(), offset_var, offset_var);
 }
 
-void EmitLoadStorageS16([[maybe_unused]] EmitContext& ctx, IR::Inst& inst,
-                        [[maybe_unused]] const IR::Value& binding,
-                        [[maybe_unused]] const IR::Value& offset) {
+void EmitLoadStorageS16(EmitContext& ctx, IR::Inst& inst, const IR::Value& binding,
+                        const IR::Value& offset) {
     const auto offset_var{ctx.var_alloc.Consume(offset)};
     ctx.AddS32("{}=bitfieldExtract(int({}_ssbo{}[{}>>2]),int(({}>>1)%2)*16,16);", inst,
                ctx.stage_name, binding.U32(), offset_var, offset_var);
@@ -132,37 +128,29 @@ void EmitLoadStorage128(EmitContext& ctx, IR::Inst& inst, const IR::Value& bindi
                  binding.U32(), offset_var);
 }
 
-void EmitWriteStorageU8([[maybe_unused]] EmitContext& ctx,
-                        [[maybe_unused]] const IR::Value& binding,
-                        [[maybe_unused]] const IR::Value& offset,
-                        [[maybe_unused]] std::string_view value) {
+void EmitWriteStorageU8(EmitContext& ctx, const IR::Value& binding, const IR::Value& offset,
+                        std::string_view value) {
     const auto offset_var{ctx.var_alloc.Consume(offset)};
     const auto bit_offset{fmt::format("int({}%4)*8", offset_var)};
     SsboWriteCas(ctx, binding, offset_var, value, bit_offset, 8);
 }
 
-void EmitWriteStorageS8([[maybe_unused]] EmitContext& ctx,
-                        [[maybe_unused]] const IR::Value& binding,
-                        [[maybe_unused]] const IR::Value& offset,
-                        [[maybe_unused]] std::string_view value) {
+void EmitWriteStorageS8(EmitContext& ctx, const IR::Value& binding, const IR::Value& offset,
+                        std::string_view value) {
     const auto offset_var{ctx.var_alloc.Consume(offset)};
     const auto bit_offset{fmt::format("int({}%4)*8", offset_var)};
     SsboWriteCas(ctx, binding, offset_var, value, bit_offset, 8);
 }
 
-void EmitWriteStorageU16([[maybe_unused]] EmitContext& ctx,
-                         [[maybe_unused]] const IR::Value& binding,
-                         [[maybe_unused]] const IR::Value& offset,
-                         [[maybe_unused]] std::string_view value) {
+void EmitWriteStorageU16(EmitContext& ctx, const IR::Value& binding, const IR::Value& offset,
+                         std::string_view value) {
     const auto offset_var{ctx.var_alloc.Consume(offset)};
     const auto bit_offset{fmt::format("int(({}>>1)%2)*16", offset_var)};
     SsboWriteCas(ctx, binding, offset_var, value, bit_offset, 16);
 }
 
-void EmitWriteStorageS16([[maybe_unused]] EmitContext& ctx,
-                         [[maybe_unused]] const IR::Value& binding,
-                         [[maybe_unused]] const IR::Value& offset,
-                         [[maybe_unused]] std::string_view value) {
+void EmitWriteStorageS16(EmitContext& ctx, const IR::Value& binding, const IR::Value& offset,
+                         std::string_view value) {
     const auto offset_var{ctx.var_alloc.Consume(offset)};
     const auto bit_offset{fmt::format("int(({}>>1)%2)*16", offset_var)};
     SsboWriteCas(ctx, binding, offset_var, value, bit_offset, 16);
@@ -181,10 +169,8 @@ void EmitWriteStorage64(EmitContext& ctx, const IR::Value& binding, const IR::Va
     ctx.Add("{}_ssbo{}[({}+4)>>2]={}.y;", ctx.stage_name, binding.U32(), offset_var, value);
 }
 
-void EmitWriteStorage128([[maybe_unused]] EmitContext& ctx,
-                         [[maybe_unused]] const IR::Value& binding,
-                         [[maybe_unused]] const IR::Value& offset,
-                         [[maybe_unused]] std::string_view value) {
+void EmitWriteStorage128(EmitContext& ctx, const IR::Value& binding, const IR::Value& offset,
+                         std::string_view value) {
     const auto offset_var{ctx.var_alloc.Consume(offset)};
     ctx.Add("{}_ssbo{}[{}>>2]={}.x;", ctx.stage_name, binding.U32(), offset_var, value);
     ctx.Add("{}_ssbo{}[({}+4)>>2]={}.y;", ctx.stage_name, binding.U32(), offset_var, value);
diff --git a/src/shader_recompiler/backend/glsl/emit_glsl_not_implemented.cpp b/src/shader_recompiler/backend/glsl/emit_glsl_not_implemented.cpp
index f17a07955..f420fe388 100644
--- a/src/shader_recompiler/backend/glsl/emit_glsl_not_implemented.cpp
+++ b/src/shader_recompiler/backend/glsl/emit_glsl_not_implemented.cpp
@@ -14,84 +14,6 @@
 
 namespace Shader::Backend::GLSL {
 
-void EmitPhi(EmitContext& ctx, IR::Inst& phi) {
-    const size_t num_args{phi.NumArgs()};
-    for (size_t i = 0; i < num_args; ++i) {
-        ctx.var_alloc.Consume(phi.Arg(i));
-    }
-    if (!phi.Definition<Id>().is_valid) {
-        // The phi node wasn't forward defined
-        ctx.var_alloc.PhiDefine(phi, phi.Arg(0).Type());
-    }
-}
-
-void EmitVoid(EmitContext& ctx) {}
-
-void EmitReference(EmitContext& ctx, const IR::Value& value) {
-    ctx.var_alloc.Consume(value);
-}
-
-void EmitPhiMove(EmitContext& ctx, const IR::Value& phi_value, const IR::Value& value) {
-    IR::Inst& phi{*phi_value.InstRecursive()};
-    const auto phi_type{phi.Arg(0).Type()};
-    if (!phi.Definition<Id>().is_valid) {
-        // The phi node wasn't forward defined
-        ctx.var_alloc.PhiDefine(phi, phi_type);
-    }
-    const auto phi_reg{ctx.var_alloc.Consume(IR::Value{&phi})};
-    const auto val_reg{ctx.var_alloc.Consume(value)};
-    if (phi_reg == val_reg) {
-        return;
-    }
-    ctx.Add("{}={};", phi_reg, val_reg);
-}
-
-void EmitBranch(EmitContext& ctx, std::string_view label) {
-    NotImplemented();
-}
-
-void EmitBranchConditional(EmitContext& ctx, std::string_view condition,
-                           std::string_view true_label, std::string_view false_label) {
-    NotImplemented();
-}
-
-void EmitLoopMerge(EmitContext& ctx, std::string_view merge_label,
-                   std::string_view continue_label) {
-    NotImplemented();
-}
-
-void EmitSelectionMerge(EmitContext& ctx, std::string_view merge_label) {
-    NotImplemented();
-}
-
-void EmitReturn(EmitContext& ctx) {
-    NotImplemented();
-}
-
-void EmitJoin(EmitContext& ctx) {
-    NotImplemented();
-}
-
-void EmitUnreachable(EmitContext& ctx) {
-    NotImplemented();
-}
-
-void EmitDemoteToHelperInvocation(EmitContext& ctx, std::string_view continue_label) {
-    ctx.Add("discard;");
-}
-
-void EmitPrologue(EmitContext& ctx) {}
-
-void EmitEpilogue(EmitContext& ctx) {}
-
-void EmitEmitVertex(EmitContext& ctx, const IR::Value& stream) {
-    ctx.Add("EmitStreamVertex(int({}));", ctx.var_alloc.Consume(stream));
-}
-
-void EmitEndPrimitive(EmitContext& ctx, const IR::Value& stream) {
-    ctx.Add("EndStreamPrimitive(int({}));", ctx.var_alloc.Consume(stream));
-}
-
 void EmitGetRegister(EmitContext& ctx) {
     NotImplemented();
 }
@@ -156,26 +78,6 @@ void EmitSetOFlag(EmitContext& ctx) {
     NotImplemented();
 }
 
-void EmitUndefU1(EmitContext& ctx, IR::Inst& inst) {
-    ctx.AddU1("{}=false;", inst);
-}
-
-void EmitUndefU8(EmitContext& ctx, IR::Inst& inst) {
-    NotImplemented();
-}
-
-void EmitUndefU16(EmitContext& ctx, IR::Inst& inst) {
-    NotImplemented();
-}
-
-void EmitUndefU32(EmitContext& ctx, IR::Inst& inst) {
-    ctx.AddU32("{}=0u;", inst);
-}
-
-void EmitUndefU64(EmitContext& ctx, IR::Inst& inst) {
-    NotImplemented();
-}
-
 void EmitGetZeroFromOp(EmitContext& ctx) {
     NotImplemented();
 }
diff --git a/src/shader_recompiler/backend/glsl/emit_glsl_shared_memory.cpp b/src/shader_recompiler/backend/glsl/emit_glsl_shared_memory.cpp
index 578bc349f..5b6175903 100644
--- a/src/shader_recompiler/backend/glsl/emit_glsl_shared_memory.cpp
+++ b/src/shader_recompiler/backend/glsl/emit_glsl_shared_memory.cpp
@@ -9,68 +9,55 @@
 #include "shader_recompiler/frontend/ir/value.h"
 
 namespace Shader::Backend::GLSL {
-void EmitLoadSharedU8([[maybe_unused]] EmitContext& ctx, [[maybe_unused]] IR::Inst& inst,
-                      [[maybe_unused]] std::string_view offset) {
+void EmitLoadSharedU8(EmitContext& ctx, IR::Inst& inst, std::string_view offset) {
     ctx.AddU32("{}=bitfieldExtract(smem[{}>>2],int({}%4)*8,8);", inst, offset, offset);
 }
 
-void EmitLoadSharedS8([[maybe_unused]] EmitContext& ctx, [[maybe_unused]] IR::Inst& inst,
-                      [[maybe_unused]] std::string_view offset) {
+void EmitLoadSharedS8(EmitContext& ctx, IR::Inst& inst, std::string_view offset) {
     ctx.AddS32("{}=bitfieldExtract(int(smem[{}>>2]),int({}%4)*8,8);", inst, offset, offset);
 }
 
-void EmitLoadSharedU16([[maybe_unused]] EmitContext& ctx, [[maybe_unused]] IR::Inst& inst,
-                       [[maybe_unused]] std::string_view offset) {
+void EmitLoadSharedU16(EmitContext& ctx, IR::Inst& inst, std::string_view offset) {
     ctx.AddU32("{}=bitfieldExtract(smem[{}>>2],int(({}>>1)%2)*16,16);", inst, offset, offset);
 }
 
-void EmitLoadSharedS16([[maybe_unused]] EmitContext& ctx, [[maybe_unused]] IR::Inst& inst,
-                       [[maybe_unused]] std::string_view offset) {
+void EmitLoadSharedS16(EmitContext& ctx, IR::Inst& inst, std::string_view offset) {
     ctx.AddS32("{}=bitfieldExtract(int(smem[{}>>2]),int(({}>>1)%2)*16,16);", inst, offset, offset);
 }
 
-void EmitLoadSharedU32([[maybe_unused]] EmitContext& ctx, [[maybe_unused]] IR::Inst& inst,
-                       [[maybe_unused]] std::string_view offset) {
+void EmitLoadSharedU32(EmitContext& ctx, IR::Inst& inst, std::string_view offset) {
     ctx.AddU32("{}=smem[{}>>2];", inst, offset);
 }
 
-void EmitLoadSharedU64([[maybe_unused]] EmitContext& ctx, [[maybe_unused]] IR::Inst& inst,
-                       [[maybe_unused]] std::string_view offset) {
+void EmitLoadSharedU64(EmitContext& ctx, IR::Inst& inst, std::string_view offset) {
     ctx.AddU32x2("{}=uvec2(smem[{}>>2],smem[({}+4)>>2]);", inst, offset, offset);
 }
 
-void EmitLoadSharedU128([[maybe_unused]] EmitContext& ctx, [[maybe_unused]] IR::Inst& inst,
-                        [[maybe_unused]] std::string_view offset) {
+void EmitLoadSharedU128(EmitContext& ctx, IR::Inst& inst, std::string_view offset) {
     ctx.AddU32x4("{}=uvec4(smem[{}>>2],smem[({}+4)>>2],smem[({}+8)>>2],smem[({}+12)>>2]);", inst,
                  offset, offset, offset, offset);
 }
 
-void EmitWriteSharedU8([[maybe_unused]] EmitContext& ctx, [[maybe_unused]] std::string_view offset,
-                       [[maybe_unused]] std::string_view value) {
+void EmitWriteSharedU8(EmitContext& ctx, std::string_view offset, std::string_view value) {
     ctx.Add("smem[{}>>2]=bitfieldInsert(smem[{}>>2],{},int({}%4)*8,8);", offset, offset, value,
             offset);
 }
 
-void EmitWriteSharedU16([[maybe_unused]] EmitContext& ctx, [[maybe_unused]] std::string_view offset,
-                        [[maybe_unused]] std::string_view value) {
+void EmitWriteSharedU16(EmitContext& ctx, std::string_view offset, std::string_view value) {
     ctx.Add("smem[{}>>2]=bitfieldInsert(smem[{}>>2],{},int(({}>>1)%2)*16,16);", offset, offset,
             value, offset);
 }
 
-void EmitWriteSharedU32([[maybe_unused]] EmitContext& ctx, [[maybe_unused]] std::string_view offset,
-                        [[maybe_unused]] std::string_view value) {
+void EmitWriteSharedU32(EmitContext& ctx, std::string_view offset, std::string_view value) {
     ctx.Add("smem[{}>>2]={};", offset, value);
 }
 
-void EmitWriteSharedU64([[maybe_unused]] EmitContext& ctx, [[maybe_unused]] std::string_view offset,
-                        [[maybe_unused]] std::string_view value) {
+void EmitWriteSharedU64(EmitContext& ctx, std::string_view offset, std::string_view value) {
     ctx.Add("smem[{}>>2]={}.x;", offset, value);
     ctx.Add("smem[({}+4)>>2]={}.y;", offset, value);
 }
 
-void EmitWriteSharedU128([[maybe_unused]] EmitContext& ctx,
-                         [[maybe_unused]] std::string_view offset,
-                         [[maybe_unused]] std::string_view value) {
+void EmitWriteSharedU128(EmitContext& ctx, std::string_view offset, std::string_view value) {
     ctx.Add("smem[{}>>2]={}.x;", offset, value);
     ctx.Add("smem[({}+4)>>2]={}.y;", offset, value);
     ctx.Add("smem[({}+8)>>2]={}.z;", offset, value);
diff --git a/src/shader_recompiler/backend/glsl/emit_glsl_special.cpp b/src/shader_recompiler/backend/glsl/emit_glsl_special.cpp
index e69de29bb..2155b8802 100644
--- a/src/shader_recompiler/backend/glsl/emit_glsl_special.cpp
+++ b/src/shader_recompiler/backend/glsl/emit_glsl_special.cpp
@@ -0,0 +1,61 @@
+// 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/glsl/emit_context.h"
+#include "shader_recompiler/backend/glsl/emit_glsl_instructions.h"
+#include "shader_recompiler/frontend/ir/value.h"
+
+namespace Shader::Backend::GLSL {
+
+void EmitPhi(EmitContext& ctx, IR::Inst& phi) {
+    const size_t num_args{phi.NumArgs()};
+    for (size_t i = 0; i < num_args; ++i) {
+        ctx.var_alloc.Consume(phi.Arg(i));
+    }
+    if (!phi.Definition<Id>().is_valid) {
+        // The phi node wasn't forward defined
+        ctx.var_alloc.PhiDefine(phi, phi.Arg(0).Type());
+    }
+}
+
+void EmitVoid(EmitContext&) {}
+
+void EmitReference(EmitContext& ctx, const IR::Value& value) {
+    ctx.var_alloc.Consume(value);
+}
+
+void EmitPhiMove(EmitContext& ctx, const IR::Value& phi_value, const IR::Value& value) {
+    IR::Inst& phi{*phi_value.InstRecursive()};
+    const auto phi_type{phi.Arg(0).Type()};
+    if (!phi.Definition<Id>().is_valid) {
+        // The phi node wasn't forward defined
+        ctx.var_alloc.PhiDefine(phi, phi_type);
+    }
+    const auto phi_reg{ctx.var_alloc.Consume(IR::Value{&phi})};
+    const auto val_reg{ctx.var_alloc.Consume(value)};
+    if (phi_reg == val_reg) {
+        return;
+    }
+    ctx.Add("{}={};", phi_reg, val_reg);
+}
+
+void EmitPrologue(EmitContext&) {
+    // TODO
+}
+
+void EmitEpilogue(EmitContext&) {
+    // TODO
+}
+
+void EmitEmitVertex(EmitContext& ctx, const IR::Value& stream) {
+    ctx.Add("EmitStreamVertex(int({}));", ctx.var_alloc.Consume(stream));
+}
+
+void EmitEndPrimitive(EmitContext& ctx, const IR::Value& stream) {
+    ctx.Add("EndStreamPrimitive(int({}));", ctx.var_alloc.Consume(stream));
+}
+
+} // namespace Shader::Backend::GLSL
diff --git a/src/shader_recompiler/backend/glsl/emit_glsl_undefined.cpp b/src/shader_recompiler/backend/glsl/emit_glsl_undefined.cpp
index e69de29bb..15bf02dd6 100644
--- a/src/shader_recompiler/backend/glsl/emit_glsl_undefined.cpp
+++ b/src/shader_recompiler/backend/glsl/emit_glsl_undefined.cpp
@@ -0,0 +1,32 @@
+// 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/glsl/emit_context.h"
+#include "shader_recompiler/backend/glsl/emit_glsl_instructions.h"
+
+namespace Shader::Backend::GLSL {
+
+void EmitUndefU1(EmitContext& ctx, IR::Inst& inst) {
+    ctx.AddU1("{}=false;", inst);
+}
+
+void EmitUndefU8(EmitContext& ctx, IR::Inst& inst) {
+    ctx.AddU32("{}=0u;", inst);
+}
+
+void EmitUndefU16(EmitContext& ctx, IR::Inst& inst) {
+    ctx.AddU32("{}=0u;", inst);
+}
+
+void EmitUndefU32(EmitContext& ctx, IR::Inst& inst) {
+    ctx.AddU32("{}=0u;", inst);
+}
+
+void EmitUndefU64(EmitContext& ctx, IR::Inst& inst) {
+    ctx.AddU64("{}=0u;", inst);
+}
+
+} // namespace Shader::Backend::GLSL