Fixed linting. Added cfg-if to the binary

Cargo.lock

@@ -1600,6 +1600,7 @@ dependencies = [
  "anyhow",
  "atty",
  "bytesize",
+ "cfg-if",
  "colored",
  "distance",
  "glob",

Cargo.toml

@@ -39,6 +39,7 @@ structopt = { version = "0.3", features = ["suggestions"] }
 distance = "0.4"
 # For the inspect subcommand
 bytesize = "1.0.0"
+cfg-if = "0.1.10"
 
 [workspace]
 members = [

lib/compiler-singlepass/src/codegen_x64.rs

@@ -35,12 +35,11 @@ pub struct FuncGen<'a> {
     /// Offsets of vmctx fields.
     vmoffsets: &'a VMOffsets,
 
-    // Memory plans.
-    memory_plans: &'a PrimaryMap<MemoryIndex, MemoryPlan>,
-
-    // Table plans.
-    table_plans: &'a PrimaryMap<TableIndex, TablePlan>,
+    // // Memory plans.
+    // memory_plans: &'a PrimaryMap<MemoryIndex, MemoryPlan>,
 
+    // // Table plans.
+    // table_plans: &'a PrimaryMap<TableIndex, TablePlan>,
     /// Function signature.
     signature: FunctionType,
 
@@ -1195,7 +1194,7 @@ impl<'a> FuncGen<'a> {
     }
 
     /// Emits a System V call sequence, specialized for labels as the call target.
-    fn emit_call_sysv_label<I: Iterator<Item = Location>>(
+    fn _emit_call_sysv_label<I: Iterator<Item = Location>>(
         &mut self,
         label: DynamicLabel,
         params: I,
@@ -1768,8 +1767,8 @@ impl<'a> FuncGen<'a> {
         module: &'a Module,
         config: &'a SinglepassConfig,
         vmoffsets: &'a VMOffsets,
-        memory_plans: &'a PrimaryMap<MemoryIndex, MemoryPlan>,
-        table_plans: &'a PrimaryMap<TableIndex, TablePlan>,
+        _memory_plans: &'a PrimaryMap<MemoryIndex, MemoryPlan>,
+        _table_plans: &'a PrimaryMap<TableIndex, TablePlan>,
         local_func_index: LocalFunctionIndex,
         local_types_excluding_arguments: &[WpType],
     ) -> Result<FuncGen<'a>, CodegenError> {
@@ -1797,8 +1796,8 @@ impl<'a> FuncGen<'a> {
             module,
             config,
             vmoffsets,
-            memory_plans,
-            table_plans,
+            // memory_plans,
+            // table_plans,
             signature,
             assembler: Assembler::new().unwrap(),
             locals: vec![], // initialization deferred to emit_head
@@ -8149,21 +8148,6 @@ fn type_to_wp_type(ty: Type) -> WpType {
     }
 }
 
-fn wp_type_to_type(ty: WpType) -> Result<Type, CodegenError> {
-    match ty {
-        WpType::I32 => Ok(Type::I32),
-        WpType::I64 => Ok(Type::I64),
-        WpType::F32 => Ok(Type::F32),
-        WpType::F64 => Ok(Type::F64),
-        WpType::V128 => Ok(Type::V128),
-        _ => {
-            return Err(CodegenError {
-                message: "broken invariant, invalid type".to_string(),
-            });
-        }
-    }
-}
-
 // FIXME: This implementation seems to be not enough to resolve all kinds of register dependencies
 // at call place.
 fn sort_call_movs(movs: &mut [(Location, GPR)]) {

lib/compiler-singlepass/src/common_decl.rs

@@ -70,7 +70,7 @@ pub enum MachineValue {
     /// Vmctx.
     Vmctx,
     /// Vmctx Deref.
-    VmctxDeref(Vec<usize>),
+    _VmctxDeref(Vec<usize>),
     /// Preserve Register.
     PreserveRegister(RegisterIndex),
     /// Copy Stack BP Relative.
@@ -82,7 +82,7 @@ pub enum MachineValue {
     /// Wasm Local.
     WasmLocal(usize),
     /// Two Halves.
-    TwoHalves(Box<(MachineValue, MachineValue)>), // 32-bit values. TODO: optimize: add another type for inner "half" value to avoid boxing?
+    _TwoHalves(Box<(MachineValue, MachineValue)>), // 32-bit values. TODO: optimize: add another type for inner "half" value to avoid boxing?
 }
 
 /// A map of function states.
@@ -114,7 +114,7 @@ pub struct FunctionStateMap {
 #[derive(Clone, Copy, Debug)]
 pub enum SuspendOffset {
     /// A loop.
-    Loop(usize),
+    _Loop(usize),
     /// A call.
     Call(usize),
     /// A trappable.
@@ -220,7 +220,7 @@ impl MachineState {
 
 impl MachineStateDiff {
     /// Creates a `MachineState` from the given `&FunctionStateMap`.
-    pub fn build_state(&self, m: &FunctionStateMap) -> MachineState {
+    pub fn _build_state(&self, m: &FunctionStateMap) -> MachineState {
         let mut chain: Vec<&MachineStateDiff> = vec![];
         chain.push(self);
         let mut current = self.last;

lib/compiler-singlepass/src/emitter_x64.rs

@@ -14,7 +14,7 @@ pub enum Location {
     Imm8(u8),
     Imm32(u32),
     Imm64(u64),
-    Imm128(u128),
+    // Imm128(u128),
     GPR(GPR),
     XMM(XMM),
     Memory(GPR, i32),

lib/compiler-singlepass/src/x64_decl.rs

@@ -45,6 +45,7 @@ pub enum GPR {
 /// XMM registers.
 #[repr(u8)]
 #[derive(Copy, Clone, Debug, Eq, PartialEq, Ord, PartialOrd, Hash)]
+#[allow(dead_code)]
 pub enum XMM {
     /// XMM register 0
     XMM0,
@@ -98,8 +99,8 @@ impl X64Register {
         }
     }
 
-    /// Converts a DWARD regnum to X64Register.
-    pub fn from_dwarf_regnum(x: u16) -> Option<X64Register> {
+    /// Converts a DWARF regnum to X64Register.
+    pub fn _from_dwarf_regnum(x: u16) -> Option<X64Register> {
         Some(match x {
             0 => X64Register::GPR(GPR::RAX),
             1 => X64Register::GPR(GPR::RDX),
@@ -134,7 +135,7 @@ impl X64Register {
     ///
     /// To build an instruction, append the memory location as a 32-bit
     /// offset to the stack pointer to this prefix.
-    pub fn prefix_mov_to_stack(&self) -> Option<&'static [u8]> {
+    pub fn _prefix_mov_to_stack(&self) -> Option<&'static [u8]> {
         Some(match *self {
             X64Register::GPR(gpr) => match gpr {
                 GPR::RDI => &[0x48, 0x89, 0xbc, 0x24],

lib/engine-jit/src/engine.rs

@@ -6,7 +6,7 @@ use std::sync::{Arc, Mutex};
 use wasm_common::entity::PrimaryMap;
 use wasm_common::{FunctionIndex, FunctionType, LocalFunctionIndex, SignatureIndex};
 use wasmer_compiler::{
-    CompileError, CustomSection, CustomSectionProtection, FunctionBody, SectionIndex, Target,
+    CompileError, CustomSection, CustomSectionProtection, FunctionBody, SectionIndex,
 };
 #[cfg(feature = "compiler")]
 use wasmer_compiler::{Compiler, CompilerConfig};

src/store.rs

@@ -81,14 +81,18 @@ impl StoreOptions {
             Compiler::from_str(&backend)
         } else {
             // Auto mode, we choose the best compiler for that platform
-            if cfg!(feature = "cranelift") && cfg!(target_arch = "x86_64") {
-                Ok(Compiler::Cranelift)
-            } else if cfg!(feature = "singlepass") && cfg!(target_arch = "x86_64") {
-                Ok(Compiler::Singlepass)
-            } else if cfg!(feature = "llvm") {
-                Ok(Compiler::LLVM)
+            cfg_if::cfg_if! {
+                if #[cfg(all(feature = "cranelift", target_arch = "x86_64"))] {
+                    return Ok(Compiler::Cranelift);
+                }
+                else if #[cfg(all(feature = "singlepass", target_arch = "x86_64"))] {
+                    return Ok(Compiler::Singlepass);
+                }
+                else if #[cfg(feature = "llvm")] {
+                    return Ok(Compiler::LLVM);
                 } else {
-                bail!("There are no available compilers for your architecture")
+                    bail!("There are no available compilers for your architecture");
+                }
             }
         }
     }