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Make translate_operator() generic on FuncEnvironment.

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This makes it clear that this function only uses the FuncEnvironment
trait and not WasmRuntime.

Also make the translate_{grow,current}_memory() methods take &self
instead of &mut self. The &mut was left on there by accident.
This commit is contained in:
Jakob Stoklund Olesen
2017-09-06 16:24:55 -07:00
parent 062dd41c93
commit d6f6af104b
3 changed files with 36 additions and 36 deletions
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64
lib/wasm/src/code_translator.rs
View File

@@ -132,11 +132,11 @@ pub fn translate_function_body(
/// Translates wasm operators into Cretonne IL instructions. Returns `true` if it inserted
/// a return.
fn translate_operator(
fn translate_operator<FE: FuncEnvironment + ?Sized>(
op: &Operator,
builder: &mut FunctionBuilder<Local>,
state: &mut TranslationState,
runtime: &mut WasmRuntime,
environ: &FE,
) {
// This big match treats all Wasm code operators.
match *op {
@@ -157,10 +157,10 @@ fn translate_operator(
* `get_global` and `set_global` are handled by the runtime.
***********************************************************************************/
Operator::GetGlobal { global_index } => {
let val = match state.get_global(builder.func, global_index, runtime) {
let val = match state.get_global(builder.func, global_index, environ) {
GlobalValue::Const(val) => val,
GlobalValue::Memory { gv, ty } => {
let addr = builder.ins().global_addr(runtime.native_pointer(), gv);
let addr = builder.ins().global_addr(environ.native_pointer(), gv);
// TODO: It is likely safe to set `aligned notrap` flags on a global load.
let flags = ir::MemFlags::new();
builder.ins().load(ty, flags, addr, 0)
@@ -169,10 +169,10 @@ fn translate_operator(
state.push1(val);
}
Operator::SetGlobal { global_index } => {
match state.get_global(builder.func, global_index, runtime) {
match state.get_global(builder.func, global_index, environ) {
GlobalValue::Const(_) => panic!("global #{} is a constant", global_index),
GlobalValue::Memory { gv, .. } => {
let addr = builder.ins().global_addr(runtime.native_pointer(), gv);
let addr = builder.ins().global_addr(environ.native_pointer(), gv);
// TODO: It is likely safe to set `aligned notrap` flags on a global store.
let flags = ir::MemFlags::new();
let val = state.pop1();
@@ -428,8 +428,8 @@ fn translate_operator(
* argument referring to an index in the external functions table of the module.
************************************************************************************/
Operator::Call { function_index } => {
let (fref, num_args) = state.get_direct_func(builder.func, function_index, runtime);
let call = runtime.translate_call(
let (fref, num_args) = state.get_direct_func(builder.func, function_index, environ);
let call = environ.translate_call(
builder.cursor(),
function_index as FunctionIndex,
fref,
@@ -441,9 +441,9 @@ fn translate_operator(
Operator::CallIndirect { index, table_index } => {
// `index` is the index of the function's signature and `table_index` is the index of
// the table to search the function in.
let (sigref, num_args) = state.get_indirect_sig(builder.func, index, runtime);
let (sigref, num_args) = state.get_indirect_sig(builder.func, index, environ);
let callee = state.pop1();
let call = runtime.translate_call_indirect(
let call = environ.translate_call_indirect(
builder.cursor(),
table_index as TableIndex,
index as SignatureIndex,
@@ -462,9 +462,9 @@ fn translate_operator(
// The WebAssembly MVP only supports one linear memory, but we expect the reserved
// argument to be a memory index.
let heap_index = reserved as MemoryIndex;
let heap = state.get_heap(builder.func, reserved, runtime);
let heap = state.get_heap(builder.func, reserved, environ);
let val = state.pop1();
state.push1(runtime.translate_grow_memory(
state.push1(environ.translate_grow_memory(
builder.cursor(),
heap_index,
heap,
@@ -473,8 +473,8 @@ fn translate_operator(
}
Operator::CurrentMemory { reserved } => {
let heap_index = reserved as MemoryIndex;
let heap = state.get_heap(builder.func, reserved, runtime);
state.push1(runtime.translate_current_memory(
let heap = state.get_heap(builder.func, reserved, environ);
state.push1(environ.translate_current_memory(
builder.cursor(),
heap_index,
heap,
@@ -486,46 +486,46 @@ fn translate_operator(
* TODO: differentiate between 32 bit and 64 bit architecture, to put the uextend or not
************************************************************************************/
Operator::I32Load8U { memory_immediate: MemoryImmediate { flags: _, offset } } => {
translate_load(offset, ir::Opcode::Uload8, I32, builder, state, runtime);
translate_load(offset, ir::Opcode::Uload8, I32, builder, state, environ);
}
Operator::I32Load16U { memory_immediate: MemoryImmediate { flags: _, offset } } => {
translate_load(offset, ir::Opcode::Uload16, I32, builder, state, runtime);
translate_load(offset, ir::Opcode::Uload16, I32, builder, state, environ);
}
Operator::I32Load8S { memory_immediate: MemoryImmediate { flags: _, offset } } => {
translate_load(offset, ir::Opcode::Sload8, I32, builder, state, runtime);
translate_load(offset, ir::Opcode::Sload8, I32, builder, state, environ);
}
Operator::I32Load16S { memory_immediate: MemoryImmediate { flags: _, offset } } => {
translate_load(offset, ir::Opcode::Sload16, I32, builder, state, runtime);
translate_load(offset, ir::Opcode::Sload16, I32, builder, state, environ);
}
Operator::I64Load8U { memory_immediate: MemoryImmediate { flags: _, offset } } => {
translate_load(offset, ir::Opcode::Uload8, I64, builder, state, runtime);
translate_load(offset, ir::Opcode::Uload8, I64, builder, state, environ);
}
Operator::I64Load16U { memory_immediate: MemoryImmediate { flags: _, offset } } => {
translate_load(offset, ir::Opcode::Uload16, I64, builder, state, runtime);
translate_load(offset, ir::Opcode::Uload16, I64, builder, state, environ);
}
Operator::I64Load8S { memory_immediate: MemoryImmediate { flags: _, offset } } => {
translate_load(offset, ir::Opcode::Sload8, I64, builder, state, runtime);
translate_load(offset, ir::Opcode::Sload8, I64, builder, state, environ);
}
Operator::I64Load16S { memory_immediate: MemoryImmediate { flags: _, offset } } => {
translate_load(offset, ir::Opcode::Sload16, I64, builder, state, runtime);
translate_load(offset, ir::Opcode::Sload16, I64, builder, state, environ);
}
Operator::I64Load32S { memory_immediate: MemoryImmediate { flags: _, offset } } => {
translate_load(offset, ir::Opcode::Sload32, I64, builder, state, runtime);
translate_load(offset, ir::Opcode::Sload32, I64, builder, state, environ);
}
Operator::I64Load32U { memory_immediate: MemoryImmediate { flags: _, offset } } => {
translate_load(offset, ir::Opcode::Uload32, I64, builder, state, runtime);
translate_load(offset, ir::Opcode::Uload32, I64, builder, state, environ);
}
Operator::I32Load { memory_immediate: MemoryImmediate { flags: _, offset } } => {
translate_load(offset, ir::Opcode::Load, I32, builder, state, runtime);
translate_load(offset, ir::Opcode::Load, I32, builder, state, environ);
}
Operator::F32Load { memory_immediate: MemoryImmediate { flags: _, offset } } => {
translate_load(offset, ir::Opcode::Load, F32, builder, state, runtime);
translate_load(offset, ir::Opcode::Load, F32, builder, state, environ);
}
Operator::I64Load { memory_immediate: MemoryImmediate { flags: _, offset } } => {
translate_load(offset, ir::Opcode::Load, I64, builder, state, runtime);
translate_load(offset, ir::Opcode::Load, I64, builder, state, environ);
}
Operator::F64Load { memory_immediate: MemoryImmediate { flags: _, offset } } => {
translate_load(offset, ir::Opcode::Load, F64, builder, state, runtime);
translate_load(offset, ir::Opcode::Load, F64, builder, state, environ);
}
/****************************** Store instructions ***********************************
* Wasm specifies an integer alignment flag but we drop it in Cretonne.
@@ -536,18 +536,18 @@ fn translate_operator(
Operator::I64Store { memory_immediate: MemoryImmediate { flags: _, offset } } |
Operator::F32Store { memory_immediate: MemoryImmediate { flags: _, offset } } |
Operator::F64Store { memory_immediate: MemoryImmediate { flags: _, offset } } => {
translate_store(offset, ir::Opcode::Store, builder, state, runtime);
translate_store(offset, ir::Opcode::Store, builder, state, environ);
}
Operator::I32Store8 { memory_immediate: MemoryImmediate { flags: _, offset } } |
Operator::I64Store8 { memory_immediate: MemoryImmediate { flags: _, offset } } => {
translate_store(offset, ir::Opcode::Istore8, builder, state, runtime);
translate_store(offset, ir::Opcode::Istore8, builder, state, environ);
}
Operator::I32Store16 { memory_immediate: MemoryImmediate { flags: _, offset } } |
Operator::I64Store16 { memory_immediate: MemoryImmediate { flags: _, offset } } => {
translate_store(offset, ir::Opcode::Istore16, builder, state, runtime);
translate_store(offset, ir::Opcode::Istore16, builder, state, environ);
}
Operator::I64Store32 { memory_immediate: MemoryImmediate { flags: _, offset } } => {
translate_store(offset, ir::Opcode::Istore32, builder, state, runtime);
translate_store(offset, ir::Opcode::Istore32, builder, state, environ);
}
/****************************** Nullary Operators ************************************/
Operator::I32Const { value } => state.push1(builder.ins().iconst(I32, value as i64)),

4
lib/wasm/src/runtime/dummy.rs
View File

@@ -89,7 +89,7 @@ impl FuncEnvironment for DummyRuntime {
}
fn translate_grow_memory(
&mut self,
&self,
mut pos: FuncCursor,
_index: MemoryIndex,
_heap: ir::Heap,
@@ -99,7 +99,7 @@ impl FuncEnvironment for DummyRuntime {
}
fn translate_current_memory(
&mut self,
&self,
mut pos: FuncCursor,
_index: MemoryIndex,
_heap: ir::Heap,

4
lib/wasm/src/runtime/spec.rs
View File

@@ -110,7 +110,7 @@ pub trait FuncEnvironment {
///
/// Returns the old size (in pages) of the memory.
fn translate_grow_memory(
&mut self,
&self,
pos: FuncCursor,
index: MemoryIndex,
heap: ir::Heap,
@@ -124,7 +124,7 @@ pub trait FuncEnvironment {
///
/// Returns the size in pages of the memory.
fn translate_current_memory(
&mut self,
&self,
pos: FuncCursor,
index: MemoryIndex,
heap: ir::Heap,