mirror of
https://github.com/fluencelabs/wasmer
synced 2024-12-15 07:05:41 +00:00
808 lines
29 KiB
Rust
808 lines
29 KiB
Rust
use hashbrown::HashMap;
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use inkwell::{
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builder::Builder,
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context::Context,
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module::Module,
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types::{BasicType, FloatType, FunctionType, IntType, PointerType, StructType, VoidType},
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values::{BasicValue, BasicValueEnum, FloatValue, FunctionValue, IntValue, PointerValue},
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AddressSpace,
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};
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use std::marker::PhantomData;
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use wasmer_runtime_core::{
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memory::MemoryType,
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module::ModuleInfo,
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structures::TypedIndex,
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types::{
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GlobalIndex, ImportedFuncIndex, LocalFuncIndex, LocalOrImport, MemoryIndex, SigIndex,
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TableIndex, Type,
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},
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vm::Ctx,
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};
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fn type_to_llvm_ptr(intrinsics: &Intrinsics, ty: Type) -> PointerType {
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match ty {
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Type::I32 => intrinsics.i32_ptr_ty,
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Type::I64 => intrinsics.i64_ptr_ty,
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Type::F32 => intrinsics.f32_ptr_ty,
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Type::F64 => intrinsics.f64_ptr_ty,
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}
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}
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pub struct Intrinsics {
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pub ctlz_i32: FunctionValue,
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pub ctlz_i64: FunctionValue,
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pub cttz_i32: FunctionValue,
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pub cttz_i64: FunctionValue,
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pub ctpop_i32: FunctionValue,
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pub ctpop_i64: FunctionValue,
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pub sqrt_f32: FunctionValue,
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pub sqrt_f64: FunctionValue,
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pub minimum_f32: FunctionValue,
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pub minimum_f64: FunctionValue,
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pub maximum_f32: FunctionValue,
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pub maximum_f64: FunctionValue,
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pub ceil_f32: FunctionValue,
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pub ceil_f64: FunctionValue,
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pub floor_f32: FunctionValue,
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pub floor_f64: FunctionValue,
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pub trunc_f32: FunctionValue,
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pub trunc_f64: FunctionValue,
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pub nearbyint_f32: FunctionValue,
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pub nearbyint_f64: FunctionValue,
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pub fabs_f32: FunctionValue,
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pub fabs_f64: FunctionValue,
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pub copysign_f32: FunctionValue,
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pub copysign_f64: FunctionValue,
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pub expect_i1: FunctionValue,
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pub trap: FunctionValue,
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pub void_ty: VoidType,
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pub i1_ty: IntType,
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pub i8_ty: IntType,
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pub i16_ty: IntType,
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pub i32_ty: IntType,
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pub i64_ty: IntType,
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pub f32_ty: FloatType,
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pub f64_ty: FloatType,
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pub i8_ptr_ty: PointerType,
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pub i16_ptr_ty: PointerType,
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pub i32_ptr_ty: PointerType,
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pub i64_ptr_ty: PointerType,
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pub f32_ptr_ty: PointerType,
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pub f64_ptr_ty: PointerType,
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pub anyfunc_ty: StructType,
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pub i1_zero: IntValue,
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pub i32_zero: IntValue,
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pub i64_zero: IntValue,
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pub f32_zero: FloatValue,
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pub f64_zero: FloatValue,
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pub trap_unreachable: BasicValueEnum,
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pub trap_call_indirect_sig: BasicValueEnum,
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pub trap_call_indirect_oob: BasicValueEnum,
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pub trap_memory_oob: BasicValueEnum,
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pub trap_illegal_arithmetic: BasicValueEnum,
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// VM intrinsics.
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pub memory_grow_dynamic_local: FunctionValue,
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pub memory_grow_static_local: FunctionValue,
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pub memory_grow_shared_local: FunctionValue,
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pub memory_grow_dynamic_import: FunctionValue,
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pub memory_grow_static_import: FunctionValue,
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pub memory_grow_shared_import: FunctionValue,
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pub memory_size_dynamic_local: FunctionValue,
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pub memory_size_static_local: FunctionValue,
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pub memory_size_shared_local: FunctionValue,
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pub memory_size_dynamic_import: FunctionValue,
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pub memory_size_static_import: FunctionValue,
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pub memory_size_shared_import: FunctionValue,
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pub throw_trap: FunctionValue,
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pub ctx_ptr_ty: PointerType,
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}
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impl Intrinsics {
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pub fn declare(module: &Module, context: &Context) -> Self {
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let void_ty = context.void_type();
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let i1_ty = context.bool_type();
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let i8_ty = context.i8_type();
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let i16_ty = context.i16_type();
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let i32_ty = context.i32_type();
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let i64_ty = context.i64_type();
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let f32_ty = context.f32_type();
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let f64_ty = context.f64_type();
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let i8_ptr_ty = i8_ty.ptr_type(AddressSpace::Generic);
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let i16_ptr_ty = i16_ty.ptr_type(AddressSpace::Generic);
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let i32_ptr_ty = i32_ty.ptr_type(AddressSpace::Generic);
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let i64_ptr_ty = i64_ty.ptr_type(AddressSpace::Generic);
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let f32_ptr_ty = f32_ty.ptr_type(AddressSpace::Generic);
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let f64_ptr_ty = f64_ty.ptr_type(AddressSpace::Generic);
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let i1_zero = i1_ty.const_int(0, false);
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let i32_zero = i32_ty.const_int(0, false);
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let i64_zero = i64_ty.const_int(0, false);
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let f32_zero = f32_ty.const_float(0.0);
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let f64_zero = f64_ty.const_float(0.0);
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let i1_ty_basic = i1_ty.as_basic_type_enum();
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let i32_ty_basic = i32_ty.as_basic_type_enum();
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let i64_ty_basic = i64_ty.as_basic_type_enum();
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let f32_ty_basic = f32_ty.as_basic_type_enum();
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let f64_ty_basic = f64_ty.as_basic_type_enum();
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let i8_ptr_ty_basic = i8_ptr_ty.as_basic_type_enum();
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let ctx_ty = context.opaque_struct_type("ctx");
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let ctx_ptr_ty = ctx_ty.ptr_type(AddressSpace::Generic);
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let local_memory_ty =
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context.struct_type(&[i8_ptr_ty_basic, i64_ty_basic, i8_ptr_ty_basic], false);
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let local_table_ty = local_memory_ty;
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let local_global_ty = i64_ty;
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let imported_func_ty =
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context.struct_type(&[i8_ptr_ty_basic, ctx_ptr_ty.as_basic_type_enum()], false);
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let sigindex_ty = i32_ty;
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let rt_intrinsics_ty = i8_ty;
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let stack_lower_bound_ty = i8_ty;
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let memory_base_ty = i8_ty;
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let memory_bound_ty = i8_ty;
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let internals_ty = i64_ty;
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let local_function_ty = i8_ptr_ty;
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let anyfunc_ty = context.struct_type(
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&[
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i8_ptr_ty_basic,
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ctx_ptr_ty.as_basic_type_enum(),
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sigindex_ty.as_basic_type_enum(),
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],
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false,
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);
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ctx_ty.set_body(
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&[
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local_memory_ty
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.ptr_type(AddressSpace::Generic)
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.ptr_type(AddressSpace::Generic)
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.as_basic_type_enum(),
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local_table_ty
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.ptr_type(AddressSpace::Generic)
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.ptr_type(AddressSpace::Generic)
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.as_basic_type_enum(),
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local_global_ty
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.ptr_type(AddressSpace::Generic)
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.ptr_type(AddressSpace::Generic)
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.as_basic_type_enum(),
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local_memory_ty
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.ptr_type(AddressSpace::Generic)
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.ptr_type(AddressSpace::Generic)
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.as_basic_type_enum(),
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local_table_ty
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.ptr_type(AddressSpace::Generic)
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.ptr_type(AddressSpace::Generic)
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.as_basic_type_enum(),
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local_global_ty
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.ptr_type(AddressSpace::Generic)
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.ptr_type(AddressSpace::Generic)
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.as_basic_type_enum(),
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imported_func_ty
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.ptr_type(AddressSpace::Generic)
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.as_basic_type_enum(),
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sigindex_ty
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.ptr_type(AddressSpace::Generic)
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.as_basic_type_enum(),
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rt_intrinsics_ty
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.ptr_type(AddressSpace::Generic)
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.as_basic_type_enum(),
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stack_lower_bound_ty
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.ptr_type(AddressSpace::Generic)
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.as_basic_type_enum(),
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memory_base_ty
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.ptr_type(AddressSpace::Generic)
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.as_basic_type_enum(),
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memory_bound_ty
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.ptr_type(AddressSpace::Generic)
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.as_basic_type_enum(),
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internals_ty
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.ptr_type(AddressSpace::Generic)
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.as_basic_type_enum(),
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local_function_ty
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.ptr_type(AddressSpace::Generic)
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.as_basic_type_enum(),
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],
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false,
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);
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let ret_i32_take_i32_i1 = i32_ty.fn_type(&[i32_ty_basic, i1_ty_basic], false);
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let ret_i64_take_i64_i1 = i64_ty.fn_type(&[i64_ty_basic, i1_ty_basic], false);
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let ret_i32_take_i32 = i32_ty.fn_type(&[i32_ty_basic], false);
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let ret_i64_take_i64 = i64_ty.fn_type(&[i64_ty_basic], false);
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let ret_f32_take_f32 = f32_ty.fn_type(&[f32_ty_basic], false);
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let ret_f64_take_f64 = f64_ty.fn_type(&[f64_ty_basic], false);
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let ret_f32_take_f32_f32 = f32_ty.fn_type(&[f32_ty_basic, f32_ty_basic], false);
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let ret_f64_take_f64_f64 = f64_ty.fn_type(&[f64_ty_basic, f64_ty_basic], false);
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let ret_i32_take_ctx_i32_i32 = i32_ty.fn_type(
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&[ctx_ptr_ty.as_basic_type_enum(), i32_ty_basic, i32_ty_basic],
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false,
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);
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let ret_i32_take_ctx_i32 =
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i32_ty.fn_type(&[ctx_ptr_ty.as_basic_type_enum(), i32_ty_basic], false);
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let ret_i1_take_i1_i1 = i1_ty.fn_type(&[i1_ty_basic, i1_ty_basic], false);
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Self {
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ctlz_i32: module.add_function("llvm.ctlz.i32", ret_i32_take_i32_i1, None),
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ctlz_i64: module.add_function("llvm.ctlz.i64", ret_i64_take_i64_i1, None),
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cttz_i32: module.add_function("llvm.cttz.i32", ret_i32_take_i32_i1, None),
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cttz_i64: module.add_function("llvm.cttz.i64", ret_i64_take_i64_i1, None),
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ctpop_i32: module.add_function("llvm.ctpop.i32", ret_i32_take_i32, None),
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ctpop_i64: module.add_function("llvm.ctpop.i64", ret_i64_take_i64, None),
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sqrt_f32: module.add_function("llvm.sqrt.f32", ret_f32_take_f32, None),
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sqrt_f64: module.add_function("llvm.sqrt.f64", ret_f64_take_f64, None),
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minimum_f32: module.add_function("llvm.minnum.f32", ret_f32_take_f32_f32, None),
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minimum_f64: module.add_function("llvm.minnum.f64", ret_f64_take_f64_f64, None),
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maximum_f32: module.add_function("llvm.maxnum.f32", ret_f32_take_f32_f32, None),
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maximum_f64: module.add_function("llvm.maxnum.f64", ret_f64_take_f64_f64, None),
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ceil_f32: module.add_function("llvm.ceil.f32", ret_f32_take_f32, None),
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ceil_f64: module.add_function("llvm.ceil.f64", ret_f64_take_f64, None),
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floor_f32: module.add_function("llvm.floor.f32", ret_f32_take_f32, None),
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floor_f64: module.add_function("llvm.floor.f64", ret_f64_take_f64, None),
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trunc_f32: module.add_function("llvm.trunc.f32", ret_f32_take_f32, None),
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trunc_f64: module.add_function("llvm.trunc.f64", ret_f64_take_f64, None),
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nearbyint_f32: module.add_function("llvm.nearbyint.f32", ret_f32_take_f32, None),
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nearbyint_f64: module.add_function("llvm.nearbyint.f64", ret_f64_take_f64, None),
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fabs_f32: module.add_function("llvm.fabs.f32", ret_f32_take_f32, None),
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fabs_f64: module.add_function("llvm.fabs.f64", ret_f64_take_f64, None),
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copysign_f32: module.add_function("llvm.copysign.f32", ret_f32_take_f32_f32, None),
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copysign_f64: module.add_function("llvm.copysign.f64", ret_f64_take_f64_f64, None),
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expect_i1: module.add_function("llvm.expect.i1", ret_i1_take_i1_i1, None),
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trap: module.add_function("llvm.trap", void_ty.fn_type(&[], false), None),
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void_ty,
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i1_ty,
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i8_ty,
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i16_ty,
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i32_ty,
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i64_ty,
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f32_ty,
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f64_ty,
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i8_ptr_ty,
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i16_ptr_ty,
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i32_ptr_ty,
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i64_ptr_ty,
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f32_ptr_ty,
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f64_ptr_ty,
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anyfunc_ty,
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i1_zero,
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i32_zero,
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i64_zero,
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f32_zero,
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f64_zero,
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trap_unreachable: i32_zero.as_basic_value_enum(),
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trap_call_indirect_sig: i32_ty.const_int(1, false).as_basic_value_enum(),
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trap_call_indirect_oob: i32_ty.const_int(3, false).as_basic_value_enum(),
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trap_memory_oob: i32_ty.const_int(2, false).as_basic_value_enum(),
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trap_illegal_arithmetic: i32_ty.const_int(4, false).as_basic_value_enum(),
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// VM intrinsics.
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memory_grow_dynamic_local: module.add_function(
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"vm.memory.grow.dynamic.local",
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ret_i32_take_ctx_i32_i32,
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None,
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),
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memory_grow_static_local: module.add_function(
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"vm.memory.grow.static.local",
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ret_i32_take_ctx_i32_i32,
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None,
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),
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memory_grow_shared_local: module.add_function(
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"vm.memory.grow.shared.local",
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ret_i32_take_ctx_i32_i32,
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None,
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),
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memory_grow_dynamic_import: module.add_function(
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"vm.memory.grow.dynamic.import",
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ret_i32_take_ctx_i32_i32,
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None,
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),
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memory_grow_static_import: module.add_function(
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"vm.memory.grow.static.import",
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ret_i32_take_ctx_i32_i32,
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None,
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),
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memory_grow_shared_import: module.add_function(
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"vm.memory.grow.shared.import",
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ret_i32_take_ctx_i32_i32,
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None,
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),
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memory_size_dynamic_local: module.add_function(
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"vm.memory.size.dynamic.local",
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ret_i32_take_ctx_i32,
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None,
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),
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memory_size_static_local: module.add_function(
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"vm.memory.size.static.local",
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ret_i32_take_ctx_i32,
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None,
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),
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memory_size_shared_local: module.add_function(
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"vm.memory.size.shared.local",
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ret_i32_take_ctx_i32,
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None,
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),
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memory_size_dynamic_import: module.add_function(
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"vm.memory.size.dynamic.import",
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ret_i32_take_ctx_i32,
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None,
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),
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memory_size_static_import: module.add_function(
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"vm.memory.size.static.import",
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ret_i32_take_ctx_i32,
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None,
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),
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memory_size_shared_import: module.add_function(
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"vm.memory.size.shared.import",
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ret_i32_take_ctx_i32,
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None,
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),
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throw_trap: module.add_function(
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"vm.exception.trap",
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void_ty.fn_type(&[i32_ty_basic], false),
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None,
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),
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ctx_ptr_ty,
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}
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}
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}
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#[derive(Clone, Copy)]
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pub enum MemoryCache {
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/// The memory moves around.
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Dynamic {
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ptr_to_base_ptr: PointerValue,
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ptr_to_bounds: PointerValue,
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},
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/// The memory is always in the same place.
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Static {
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base_ptr: PointerValue,
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bounds: IntValue,
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},
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}
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struct TableCache {
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ptr_to_base_ptr: PointerValue,
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ptr_to_bounds: PointerValue,
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}
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#[derive(Clone, Copy)]
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pub enum GlobalCache {
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Mut { ptr_to_value: PointerValue },
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Const { value: BasicValueEnum },
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}
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struct ImportedFuncCache {
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func_ptr: PointerValue,
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ctx_ptr: PointerValue,
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}
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pub struct CtxType<'a> {
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ctx_ptr_value: PointerValue,
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info: &'a ModuleInfo,
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cache_builder: Builder,
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cached_memories: HashMap<MemoryIndex, MemoryCache>,
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cached_tables: HashMap<TableIndex, TableCache>,
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cached_sigindices: HashMap<SigIndex, IntValue>,
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cached_globals: HashMap<GlobalIndex, GlobalCache>,
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cached_imported_functions: HashMap<ImportedFuncIndex, ImportedFuncCache>,
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_phantom: PhantomData<&'a FunctionValue>,
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}
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fn offset_to_index(offset: u8) -> u32 {
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(offset as usize / ::std::mem::size_of::<usize>()) as u32
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}
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impl<'a> CtxType<'a> {
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pub fn new(
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info: &'a ModuleInfo,
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func_value: &'a FunctionValue,
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cache_builder: Builder,
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) -> CtxType<'a> {
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CtxType {
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ctx_ptr_value: func_value.get_nth_param(0).unwrap().into_pointer_value(),
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info,
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cache_builder,
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cached_memories: HashMap::new(),
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cached_tables: HashMap::new(),
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cached_sigindices: HashMap::new(),
|
|
cached_globals: HashMap::new(),
|
|
cached_imported_functions: HashMap::new(),
|
|
|
|
_phantom: PhantomData,
|
|
}
|
|
}
|
|
|
|
pub fn basic(&self) -> BasicValueEnum {
|
|
self.ctx_ptr_value.as_basic_value_enum()
|
|
}
|
|
|
|
pub fn memory(&mut self, index: MemoryIndex, intrinsics: &Intrinsics) -> MemoryCache {
|
|
let (cached_memories, info, ctx_ptr_value, cache_builder) = (
|
|
&mut self.cached_memories,
|
|
self.info,
|
|
self.ctx_ptr_value,
|
|
&self.cache_builder,
|
|
);
|
|
|
|
*cached_memories.entry(index).or_insert_with(|| {
|
|
let (memory_array_ptr_ptr, index, memory_type) = match index.local_or_import(info) {
|
|
LocalOrImport::Local(local_mem_index) => (
|
|
unsafe {
|
|
cache_builder.build_struct_gep(
|
|
ctx_ptr_value,
|
|
offset_to_index(Ctx::offset_memories()),
|
|
"memory_array_ptr_ptr",
|
|
)
|
|
},
|
|
local_mem_index.index() as u64,
|
|
info.memories[local_mem_index].memory_type(),
|
|
),
|
|
LocalOrImport::Import(import_mem_index) => (
|
|
unsafe {
|
|
cache_builder.build_struct_gep(
|
|
ctx_ptr_value,
|
|
offset_to_index(Ctx::offset_imported_memories()),
|
|
"memory_array_ptr_ptr",
|
|
)
|
|
},
|
|
import_mem_index.index() as u64,
|
|
info.imported_memories[import_mem_index].1.memory_type(),
|
|
),
|
|
};
|
|
|
|
let memory_array_ptr = cache_builder
|
|
.build_load(memory_array_ptr_ptr, "memory_array_ptr")
|
|
.into_pointer_value();
|
|
let const_index = intrinsics.i32_ty.const_int(index, false);
|
|
let memory_ptr_ptr = unsafe {
|
|
cache_builder.build_in_bounds_gep(
|
|
memory_array_ptr,
|
|
&[const_index],
|
|
"memory_ptr_ptr",
|
|
)
|
|
};
|
|
let memory_ptr = cache_builder
|
|
.build_load(memory_ptr_ptr, "memory_ptr")
|
|
.into_pointer_value();
|
|
|
|
let (ptr_to_base_ptr, ptr_to_bounds) = unsafe {
|
|
(
|
|
cache_builder.build_struct_gep(memory_ptr, 0, "base_ptr"),
|
|
cache_builder.build_struct_gep(memory_ptr, 1, "bounds_ptr"),
|
|
)
|
|
};
|
|
|
|
match memory_type {
|
|
MemoryType::Dynamic => MemoryCache::Dynamic {
|
|
ptr_to_base_ptr,
|
|
ptr_to_bounds,
|
|
},
|
|
MemoryType::Static | MemoryType::SharedStatic => MemoryCache::Static {
|
|
base_ptr: cache_builder
|
|
.build_load(ptr_to_base_ptr, "base")
|
|
.into_pointer_value(),
|
|
bounds: cache_builder
|
|
.build_load(ptr_to_bounds, "bounds")
|
|
.into_int_value(),
|
|
},
|
|
}
|
|
})
|
|
}
|
|
|
|
pub fn table(
|
|
&mut self,
|
|
index: TableIndex,
|
|
intrinsics: &Intrinsics,
|
|
builder: &Builder,
|
|
) -> (PointerValue, IntValue) {
|
|
let (cached_tables, info, ctx_ptr_value, cache_builder) = (
|
|
&mut self.cached_tables,
|
|
self.info,
|
|
self.ctx_ptr_value,
|
|
&self.cache_builder,
|
|
);
|
|
|
|
let TableCache {
|
|
ptr_to_base_ptr,
|
|
ptr_to_bounds,
|
|
} = *cached_tables.entry(index).or_insert_with(|| {
|
|
let (table_array_ptr_ptr, index) = match index.local_or_import(info) {
|
|
LocalOrImport::Local(local_table_index) => (
|
|
unsafe {
|
|
cache_builder.build_struct_gep(
|
|
ctx_ptr_value,
|
|
offset_to_index(Ctx::offset_tables()),
|
|
"table_array_ptr_ptr",
|
|
)
|
|
},
|
|
local_table_index.index() as u64,
|
|
),
|
|
LocalOrImport::Import(import_table_index) => (
|
|
unsafe {
|
|
cache_builder.build_struct_gep(
|
|
ctx_ptr_value,
|
|
offset_to_index(Ctx::offset_imported_tables()),
|
|
"table_array_ptr_ptr",
|
|
)
|
|
},
|
|
import_table_index.index() as u64,
|
|
),
|
|
};
|
|
|
|
let table_array_ptr = cache_builder
|
|
.build_load(table_array_ptr_ptr, "table_array_ptr")
|
|
.into_pointer_value();
|
|
let const_index = intrinsics.i32_ty.const_int(index, false);
|
|
let table_ptr_ptr = unsafe {
|
|
cache_builder.build_in_bounds_gep(table_array_ptr, &[const_index], "table_ptr_ptr")
|
|
};
|
|
let table_ptr = cache_builder
|
|
.build_load(table_ptr_ptr, "table_ptr")
|
|
.into_pointer_value();
|
|
|
|
let (ptr_to_base_ptr, ptr_to_bounds) = unsafe {
|
|
(
|
|
cache_builder.build_struct_gep(table_ptr, 0, "base_ptr"),
|
|
cache_builder.build_struct_gep(table_ptr, 1, "bounds_ptr"),
|
|
)
|
|
};
|
|
|
|
TableCache {
|
|
ptr_to_base_ptr,
|
|
ptr_to_bounds,
|
|
}
|
|
});
|
|
|
|
(
|
|
builder
|
|
.build_load(ptr_to_base_ptr, "base_ptr")
|
|
.into_pointer_value(),
|
|
builder.build_load(ptr_to_bounds, "bounds").into_int_value(),
|
|
)
|
|
}
|
|
|
|
pub fn local_func(
|
|
&mut self,
|
|
index: LocalFuncIndex,
|
|
fn_ty: FunctionType,
|
|
intrinsics: &Intrinsics,
|
|
builder: &Builder,
|
|
) -> PointerValue {
|
|
let local_func_array_ptr_ptr = unsafe {
|
|
builder.build_struct_gep(
|
|
self.ctx_ptr_value,
|
|
offset_to_index(Ctx::offset_local_functions()),
|
|
"local_func_array_ptr_ptr",
|
|
)
|
|
};
|
|
let local_func_array_ptr = builder
|
|
.build_load(local_func_array_ptr_ptr, "local_func_array_ptr")
|
|
.into_pointer_value();
|
|
let local_func_ptr_ptr = unsafe {
|
|
builder.build_in_bounds_gep(
|
|
local_func_array_ptr,
|
|
&[intrinsics.i32_ty.const_int(index.index() as u64, false)],
|
|
"local_func_ptr_ptr",
|
|
)
|
|
};
|
|
let local_func_ptr = builder
|
|
.build_load(local_func_ptr_ptr, "local_func_ptr")
|
|
.into_pointer_value();
|
|
builder.build_pointer_cast(
|
|
local_func_ptr,
|
|
fn_ty.ptr_type(AddressSpace::Generic),
|
|
"local_func_ptr",
|
|
)
|
|
}
|
|
|
|
pub fn dynamic_sigindex(&mut self, index: SigIndex, intrinsics: &Intrinsics) -> IntValue {
|
|
let (cached_sigindices, ctx_ptr_value, cache_builder) = (
|
|
&mut self.cached_sigindices,
|
|
self.ctx_ptr_value,
|
|
&self.cache_builder,
|
|
);
|
|
|
|
*cached_sigindices.entry(index).or_insert_with(|| {
|
|
let sigindex_array_ptr_ptr = unsafe {
|
|
cache_builder.build_struct_gep(
|
|
ctx_ptr_value,
|
|
offset_to_index(Ctx::offset_signatures()),
|
|
"sigindex_array_ptr_ptr",
|
|
)
|
|
};
|
|
let sigindex_array_ptr = cache_builder
|
|
.build_load(sigindex_array_ptr_ptr, "sigindex_array_ptr")
|
|
.into_pointer_value();
|
|
let const_index = intrinsics.i32_ty.const_int(index.index() as u64, false);
|
|
|
|
let sigindex_ptr = unsafe {
|
|
cache_builder.build_in_bounds_gep(
|
|
sigindex_array_ptr,
|
|
&[const_index],
|
|
"sigindex_ptr",
|
|
)
|
|
};
|
|
|
|
cache_builder
|
|
.build_load(sigindex_ptr, "sigindex")
|
|
.into_int_value()
|
|
})
|
|
}
|
|
|
|
pub fn global_cache(&mut self, index: GlobalIndex, intrinsics: &Intrinsics) -> GlobalCache {
|
|
let (cached_globals, ctx_ptr_value, info, cache_builder) = (
|
|
&mut self.cached_globals,
|
|
self.ctx_ptr_value,
|
|
self.info,
|
|
&self.cache_builder,
|
|
);
|
|
|
|
*cached_globals.entry(index).or_insert_with(|| {
|
|
let (globals_array_ptr_ptr, index, mutable, wasmer_ty) =
|
|
match index.local_or_import(info) {
|
|
LocalOrImport::Local(local_global_index) => {
|
|
let desc = info.globals[local_global_index].desc;
|
|
(
|
|
unsafe {
|
|
cache_builder.build_struct_gep(
|
|
ctx_ptr_value,
|
|
offset_to_index(Ctx::offset_globals()),
|
|
"globals_array_ptr_ptr",
|
|
)
|
|
},
|
|
local_global_index.index() as u64,
|
|
desc.mutable,
|
|
desc.ty,
|
|
)
|
|
}
|
|
LocalOrImport::Import(import_global_index) => {
|
|
let desc = info.imported_globals[import_global_index].1;
|
|
(
|
|
unsafe {
|
|
cache_builder.build_struct_gep(
|
|
ctx_ptr_value,
|
|
offset_to_index(Ctx::offset_imported_globals()),
|
|
"globals_array_ptr_ptr",
|
|
)
|
|
},
|
|
import_global_index.index() as u64,
|
|
desc.mutable,
|
|
desc.ty,
|
|
)
|
|
}
|
|
};
|
|
|
|
let llvm_ptr_ty = type_to_llvm_ptr(intrinsics, wasmer_ty);
|
|
|
|
let global_array_ptr = cache_builder
|
|
.build_load(globals_array_ptr_ptr, "global_array_ptr")
|
|
.into_pointer_value();
|
|
let const_index = intrinsics.i32_ty.const_int(index, false);
|
|
let global_ptr_ptr = unsafe {
|
|
cache_builder.build_in_bounds_gep(
|
|
global_array_ptr,
|
|
&[const_index],
|
|
"global_ptr_ptr",
|
|
)
|
|
};
|
|
let global_ptr = cache_builder
|
|
.build_load(global_ptr_ptr, "global_ptr")
|
|
.into_pointer_value();
|
|
|
|
let global_ptr_typed =
|
|
cache_builder.build_pointer_cast(global_ptr, llvm_ptr_ty, "global_ptr_typed");
|
|
|
|
if mutable {
|
|
GlobalCache::Mut {
|
|
ptr_to_value: global_ptr_typed,
|
|
}
|
|
} else {
|
|
GlobalCache::Const {
|
|
value: cache_builder.build_load(global_ptr_typed, "global_value"),
|
|
}
|
|
}
|
|
})
|
|
}
|
|
|
|
pub fn imported_func(
|
|
&mut self,
|
|
index: ImportedFuncIndex,
|
|
intrinsics: &Intrinsics,
|
|
) -> (PointerValue, PointerValue) {
|
|
let (cached_imported_functions, ctx_ptr_value, cache_builder) = (
|
|
&mut self.cached_imported_functions,
|
|
self.ctx_ptr_value,
|
|
&self.cache_builder,
|
|
);
|
|
|
|
let imported_func_cache = cached_imported_functions.entry(index).or_insert_with(|| {
|
|
let func_array_ptr_ptr = unsafe {
|
|
cache_builder.build_struct_gep(
|
|
ctx_ptr_value,
|
|
offset_to_index(Ctx::offset_imported_funcs()),
|
|
"imported_func_array_ptr_ptr",
|
|
)
|
|
};
|
|
let func_array_ptr = cache_builder
|
|
.build_load(func_array_ptr_ptr, "func_array_ptr")
|
|
.into_pointer_value();
|
|
let const_index = intrinsics.i32_ty.const_int(index.index() as u64, false);
|
|
let imported_func_ptr = unsafe {
|
|
cache_builder.build_in_bounds_gep(
|
|
func_array_ptr,
|
|
&[const_index],
|
|
"imported_func_ptr",
|
|
)
|
|
};
|
|
let (func_ptr_ptr, ctx_ptr_ptr) = unsafe {
|
|
(
|
|
cache_builder.build_struct_gep(imported_func_ptr, 0, "func_ptr_ptr"),
|
|
cache_builder.build_struct_gep(imported_func_ptr, 1, "ctx_ptr_ptr"),
|
|
)
|
|
};
|
|
|
|
let func_ptr = cache_builder
|
|
.build_load(func_ptr_ptr, "func_ptr")
|
|
.into_pointer_value();
|
|
let ctx_ptr = cache_builder
|
|
.build_load(ctx_ptr_ptr, "ctx_ptr")
|
|
.into_pointer_value();
|
|
|
|
ImportedFuncCache { func_ptr, ctx_ptr }
|
|
});
|
|
|
|
(imported_func_cache.func_ptr, imported_func_cache.ctx_ptr)
|
|
}
|
|
}
|