shader_recompiler, video_core: Resolve clang errors

Silences the following warnings-turned-errors:
-Wsign-conversion
-Wunused-private-field
-Wbraced-scalar-init
-Wunused-variable

And some other errors

4 files changed, 13 insertions, 9 deletions

diff --git a/src/shader_recompiler/backend/glasm/emit_context.h b/src/shader_recompiler/backend/glasm/emit_context.h
index 1da51a996..8433e5c00 100644
--- a/src/shader_recompiler/backend/glasm/emit_context.h
+++ b/src/shader_recompiler/backend/glasm/emit_context.h
@@ -59,7 +59,7 @@ public:
     }
 
     std::string code;
-    RegAlloc reg_alloc{*this};
+    RegAlloc reg_alloc{};
     const Info& info;
     const Profile& profile;
     const RuntimeInfo& runtime_info;
diff --git a/src/shader_recompiler/backend/glasm/reg_alloc.h b/src/shader_recompiler/backend/glasm/reg_alloc.h
index 5a703daf2..82aec66c6 100644
--- a/src/shader_recompiler/backend/glasm/reg_alloc.h
+++ b/src/shader_recompiler/backend/glasm/reg_alloc.h
@@ -86,7 +86,7 @@ struct ScalarF64 : Value {};
 
 class RegAlloc {
 public:
-    RegAlloc(EmitContext& ctx_) : ctx{ctx_} {}
+    RegAlloc() = default;
 
     Register Define(IR::Inst& inst);
 
@@ -142,7 +142,6 @@ private:
 
     void Free(Id id);
 
-    EmitContext& ctx;
     size_t num_used_registers{};
     size_t num_used_long_registers{};
     std::bitset<NUM_REGS> register_use{};
diff --git a/src/shader_recompiler/backend/glsl/emit_glsl_floating_point.cpp b/src/shader_recompiler/backend/glsl/emit_glsl_floating_point.cpp
index b11be5bd7..2edcf592e 100644
--- a/src/shader_recompiler/backend/glsl/emit_glsl_floating_point.cpp
+++ b/src/shader_recompiler/backend/glsl/emit_glsl_floating_point.cpp
@@ -22,7 +22,7 @@ void Compare(EmitContext& ctx, IR::Inst& inst, std::string_view lhs, std::string
 }
 
 bool IsPrecise(const IR::Inst& inst) {
-    return {inst.Flags<IR::FpControl>().no_contraction};
+    return inst.Flags<IR::FpControl>().no_contraction;
 }
 } // Anonymous namespace
 
diff --git a/src/shader_recompiler/backend/spirv/emit_spirv_image.cpp b/src/shader_recompiler/backend/spirv/emit_spirv_image.cpp
index 647804814..3588f052b 100644
--- a/src/shader_recompiler/backend/spirv/emit_spirv_image.cpp
+++ b/src/shader_recompiler/backend/spirv/emit_spirv_image.cpp
@@ -109,7 +109,7 @@ private:
             return;
         }
         if (offset.IsImmediate()) {
-            Add(spv::ImageOperandsMask::ConstOffset, ctx.SConst(offset.U32()));
+            Add(spv::ImageOperandsMask::ConstOffset, ctx.SConst(static_cast<s32>(offset.U32())));
             return;
         }
         IR::Inst* const inst{offset.InstRecursive()};
@@ -117,16 +117,21 @@ private:
             switch (inst->GetOpcode()) {
             case IR::Opcode::CompositeConstructU32x2:
                 Add(spv::ImageOperandsMask::ConstOffset,
-                    ctx.SConst(inst->Arg(0).U32(), inst->Arg(1).U32()));
+                    ctx.SConst(static_cast<s32>(inst->Arg(0).U32()),
+                               static_cast<s32>(inst->Arg(1).U32())));
                 return;
             case IR::Opcode::CompositeConstructU32x3:
                 Add(spv::ImageOperandsMask::ConstOffset,
-                    ctx.SConst(inst->Arg(0).U32(), inst->Arg(1).U32(), inst->Arg(2).U32()));
+                    ctx.SConst(static_cast<s32>(inst->Arg(0).U32()),
+                               static_cast<s32>(inst->Arg(1).U32()),
+                               static_cast<s32>(inst->Arg(2).U32())));
                 return;
             case IR::Opcode::CompositeConstructU32x4:
                 Add(spv::ImageOperandsMask::ConstOffset,
-                    ctx.SConst(inst->Arg(0).U32(), inst->Arg(1).U32(), inst->Arg(2).U32(),
-                               inst->Arg(3).U32()));
+                    ctx.SConst(static_cast<s32>(inst->Arg(0).U32()),
+                               static_cast<s32>(inst->Arg(1).U32()),
+                               static_cast<s32>(inst->Arg(2).U32()),
+                               static_cast<s32>(inst->Arg(3).U32())));
                 return;
             default:
                 break;