From a0c628c06320582c6b84a67711ebef091bf8fab4 Mon Sep 17 00:00:00 2001 From: Patrick Ventuzelo Date: Mon, 9 Dec 2019 15:18:08 +0100 Subject: [PATCH 1/2] fix unwrap bug + replace assert, unreachable in singlepass codegen --- lib/singlepass-backend/src/codegen_x64.rs | 893 +++++++++++++++------- 1 file changed, 614 insertions(+), 279 deletions(-) diff --git a/lib/singlepass-backend/src/codegen_x64.rs b/lib/singlepass-backend/src/codegen_x64.rs index eee81e3b573..e2f11ccd10d 100644 --- a/lib/singlepass-backend/src/codegen_x64.rs +++ b/lib/singlepass-backend/src/codegen_x64.rs @@ -944,20 +944,30 @@ impl X64FunctionCode { mut src: Location, sz_dst: Size, dst: Location, - ) { + ) -> Result<(), CodegenError> { let inner = |m: &mut Machine, a: &mut Assembler, src: Location| match dst { - Location::Imm32(_) | Location::Imm64(_) => unreachable!(), + Location::Imm32(_) | Location::Imm64(_) => { + return Err(CodegenError { + message: format!("emit_relaxed_zx_sx dst Imm: unreachable code"), + }) + } Location::Memory(_, _) => { let tmp_dst = m.acquire_temp_gpr().unwrap(); op(a, sz_src, src, sz_dst, Location::GPR(tmp_dst)); a.emit_mov(Size::S64, Location::GPR(tmp_dst), dst); m.release_temp_gpr(tmp_dst); + Ok(()) } Location::GPR(_) => { op(a, sz_src, src, sz_dst, dst); + Ok(()) + } + _ => { + return Err(CodegenError { + message: format!("emit_relaxed_zx_sx dst: unreachable code"), + }) } - _ => unreachable!(), }; match src { @@ -966,13 +976,18 @@ impl X64FunctionCode { a.emit_mov(Size::S64, src, Location::GPR(tmp_src)); src = Location::GPR(tmp_src); - inner(m, a, src); + inner(m, a, src)?; m.release_temp_gpr(tmp_src); } - Location::GPR(_) | Location::Memory(_, _) => inner(m, a, src), - _ => unreachable!(), + Location::GPR(_) | Location::Memory(_, _) => inner(m, a, src)?, + _ => { + return Err(CodegenError { + message: format!("emit_relaxed_zx_sx src: unreachable code"), + }) + } } + Ok(()) } /// Moves `src` and `dst` to valid locations for generic instructions. @@ -1055,7 +1070,7 @@ impl X64FunctionCode { src1: Location, src2: Location, dst: Location, - ) { + ) -> Result<(), CodegenError> { Self::emit_relaxed_avx_base( a, m, @@ -1063,7 +1078,8 @@ impl X64FunctionCode { src1, src2, dst, - ) + )?; + Ok(()) } /// Moves `src1` and `src2` to valid locations and possibly adds a layer of indirection for `dst` for AVX instructions. @@ -1074,7 +1090,7 @@ impl X64FunctionCode { src1: Location, src2: Location, dst: Location, - ) { + ) -> Result<(), CodegenError> { let tmp1 = m.acquire_temp_xmm().unwrap(); let tmp2 = m.acquire_temp_xmm().unwrap(); let tmp3 = m.acquire_temp_xmm().unwrap(); @@ -1096,7 +1112,11 @@ impl X64FunctionCode { a.emit_mov(Size::S64, Location::GPR(tmpg), Location::XMM(tmp1)); tmp1 } - _ => unreachable!(), + _ => { + return Err(CodegenError { + message: format!("emit_relaxed_avx_base src1: unreachable code"), + }) + } }; let src2 = match src2 { @@ -1116,7 +1136,11 @@ impl X64FunctionCode { a.emit_mov(Size::S64, Location::GPR(tmpg), Location::XMM(tmp2)); XMMOrMemory::XMM(tmp2) } - _ => unreachable!(), + _ => { + return Err(CodegenError { + message: format!("emit_relaxed_avx_base src2: unreachable code"), + }) + } }; match dst { @@ -1127,13 +1151,18 @@ impl X64FunctionCode { op(a, m, src1, src2, tmp3); a.emit_mov(Size::S64, Location::XMM(tmp3), dst); } - _ => unreachable!(), + _ => { + return Err(CodegenError { + message: format!("emit_relaxed_avx_base dst: unreachable code"), + }) + } } m.release_temp_gpr(tmpg); m.release_temp_xmm(tmp3); m.release_temp_xmm(tmp2); m.release_temp_xmm(tmp1); + Ok(()) } /// I32 binary operation with both operands popped from the virtual stack. @@ -1229,7 +1258,7 @@ impl X64FunctionCode { value_stack: &mut Vec, c: Condition, loc_b: Location, - ) { + ) -> Result<(), CodegenError> { // Using Red Zone here. let loc_a = get_location_released(a, m, value_stack.pop().unwrap()); @@ -1252,9 +1281,14 @@ impl X64FunctionCode { a.emit_mov(Size::S32, Location::GPR(tmp), ret); m.release_temp_gpr(tmp); } - _ => unreachable!(), + _ => { + return Err(CodegenError { + message: format!("emit_cmpop_i32_dynamic_b ret: unreachable code"), + }) + } } value_stack.push(ret); + Ok(()) } /// I32 comparison with both operands popped from the virtual stack. @@ -1263,9 +1297,10 @@ impl X64FunctionCode { m: &mut Machine, value_stack: &mut Vec, c: Condition, - ) { + ) -> Result<(), CodegenError> { let loc_b = get_location_released(a, m, value_stack.pop().unwrap()); - Self::emit_cmpop_i32_dynamic_b(a, m, value_stack, c, loc_b); + Self::emit_cmpop_i32_dynamic_b(a, m, value_stack, c, loc_b)?; + Ok(()) } /// I64 comparison with `loc_b` from input. @@ -1275,7 +1310,7 @@ impl X64FunctionCode { value_stack: &mut Vec, c: Condition, loc_b: Location, - ) { + ) -> Result<(), CodegenError> { // Using Red Zone here. let loc_a = get_location_released(a, m, value_stack.pop().unwrap()); @@ -1298,9 +1333,14 @@ impl X64FunctionCode { a.emit_mov(Size::S32, Location::GPR(tmp), ret); m.release_temp_gpr(tmp); } - _ => unreachable!(), + _ => { + return Err(CodegenError { + message: format!("emit_cmpop_i64_dynamic_b ret: unreachable code"), + }) + } } value_stack.push(ret); + Ok(()) } /// I64 comparison with both operands popped from the virtual stack. @@ -1309,9 +1349,10 @@ impl X64FunctionCode { m: &mut Machine, value_stack: &mut Vec, c: Condition, - ) { + ) -> Result<(), CodegenError> { let loc_b = get_location_released(a, m, value_stack.pop().unwrap()); - Self::emit_cmpop_i64_dynamic_b(a, m, value_stack, c, loc_b); + Self::emit_cmpop_i64_dynamic_b(a, m, value_stack, c, loc_b)?; + Ok(()) } /// I32 `lzcnt`/`tzcnt`/`popcnt` with operand popped from the virtual stack. @@ -1320,7 +1361,7 @@ impl X64FunctionCode { m: &mut Machine, value_stack: &mut Vec, f: fn(&mut Assembler, Size, Location, Location), - ) { + ) -> Result<(), CodegenError> { let loc = get_location_released(a, m, value_stack.pop().unwrap()); let ret = m.acquire_locations( a, @@ -1352,9 +1393,14 @@ impl X64FunctionCode { f(a, Size::S32, loc, ret); } } - _ => unreachable!(), + _ => { + return Err(CodegenError { + message: format!("emit_xcnt_i32 loc: unreachable code"), + }) + } } value_stack.push(ret); + Ok(()) } /// I64 `lzcnt`/`tzcnt`/`popcnt` with operand popped from the virtual stack. @@ -1363,7 +1409,7 @@ impl X64FunctionCode { m: &mut Machine, value_stack: &mut Vec, f: fn(&mut Assembler, Size, Location, Location), - ) { + ) -> Result<(), CodegenError> { let loc = get_location_released(a, m, value_stack.pop().unwrap()); let ret = m.acquire_locations( a, @@ -1395,9 +1441,14 @@ impl X64FunctionCode { f(a, Size::S64, loc, ret); } } - _ => unreachable!(), + _ => { + return Err(CodegenError { + message: format!("emit_xcnt_i64 loc: unreachable code"), + }) + } } value_stack.push(ret); + Ok(()) } /// I32 shift with both operands popped from the virtual stack. @@ -1456,7 +1507,7 @@ impl X64FunctionCode { m: &mut Machine, value_stack: &mut Vec, f: fn(&mut Assembler, XMM, XMMOrMemory, XMM), - ) { + ) -> Result<(), CodegenError> { let loc_b = get_location_released(a, m, value_stack.pop().unwrap()); let loc_a = get_location_released(a, m, value_stack.pop().unwrap()); let ret = m.acquire_locations( @@ -1466,7 +1517,8 @@ impl X64FunctionCode { )[0]; value_stack.push(ret); - Self::emit_relaxed_avx(a, m, f, loc_a, loc_b, ret); + Self::emit_relaxed_avx(a, m, f, loc_a, loc_b, ret)?; + Ok(()) } /// Floating point (AVX) comparison with both operands popped from the virtual stack. @@ -1475,7 +1527,7 @@ impl X64FunctionCode { m: &mut Machine, value_stack: &mut Vec, f: fn(&mut Assembler, XMM, XMMOrMemory, XMM), - ) { + ) -> Result<(), CodegenError> { let loc_b = get_location_released(a, m, value_stack.pop().unwrap()); let loc_a = get_location_released(a, m, value_stack.pop().unwrap()); let ret = m.acquire_locations( @@ -1485,11 +1537,12 @@ impl X64FunctionCode { )[0]; value_stack.push(ret); - Self::emit_relaxed_avx(a, m, f, loc_a, loc_b, ret); + Self::emit_relaxed_avx(a, m, f, loc_a, loc_b, ret)?; // Workaround for behavior inconsistency among different backing implementations. // (all bits or only the least significant bit are set to one?) a.emit_and(Size::S32, Location::Imm32(1), ret); + Ok(()) } /// Floating point (AVX) binary operation with both operands popped from the virtual stack. @@ -1498,7 +1551,7 @@ impl X64FunctionCode { m: &mut Machine, value_stack: &mut Vec, f: fn(&mut Assembler, XMM, XMMOrMemory, XMM), - ) { + ) -> Result<(), CodegenError> { let loc = get_location_released(a, m, value_stack.pop().unwrap()); let ret = m.acquire_locations( a, @@ -1507,7 +1560,8 @@ impl X64FunctionCode { )[0]; value_stack.push(ret); - Self::emit_relaxed_avx(a, m, f, loc, loc, ret); + Self::emit_relaxed_avx(a, m, f, loc, loc, ret)?; + Ok(()) } /// Emits a System V call sequence. @@ -1519,7 +1573,7 @@ impl X64FunctionCode { cb: F, params: I, state_context: Option<(&mut FunctionStateMap, &mut [ControlFrame])>, - ) { + ) -> Result<(), CodegenError> { // Values pushed in this function are above the shadow region. m.state.stack_values.push(MachineValue::ExplicitShadow); @@ -1530,7 +1584,11 @@ impl X64FunctionCode { for r in used_gprs.iter() { a.emit_push(Size::S64, Location::GPR(*r)); let content = m.state.register_values[X64Register::GPR(*r).to_index().0].clone(); - assert!(content != MachineValue::Undefined); + if content == MachineValue::Undefined { + return Err(CodegenError { + message: format!("emit_call_sysv: Undefined used_gprs content"), + }); + } m.state.stack_values.push(content); } @@ -1555,7 +1613,11 @@ impl X64FunctionCode { } for r in used_xmms.iter().rev() { let content = m.state.register_values[X64Register::XMM(*r).to_index().0].clone(); - assert!(content != MachineValue::Undefined); + if content == MachineValue::Undefined { + return Err(CodegenError { + message: format!("emit_call_sysv: Undefined used_xmms content"), + }); + } m.state.stack_values.push(content); } } @@ -1610,7 +1672,9 @@ impl X64FunctionCode { } Location::Memory(reg, offset) => { if reg != GPR::RBP { - unreachable!(); + return Err(CodegenError { + message: format!("emit_call_sysv loc param: unreachable code"), + }); } m.state .stack_values @@ -1656,7 +1720,11 @@ impl X64FunctionCode { _ => a.emit_push(Size::S64, *param), } } - _ => unreachable!(), + _ => { + return Err(CodegenError { + message: format!("emit_call_sysv loc: unreachable code"), + }) + } } } @@ -1677,7 +1745,11 @@ impl X64FunctionCode { Machine::get_param_location(0), ); // vmctx - assert!(m.state.stack_values.len() % 2 == 1); // explicit shadow takes one slot + if (m.state.stack_values.len() % 2) != 1 { + return Err(CodegenError { + message: format!("emit_call_sysv: explicit shadow takes one slot"), + }); + } cb(a); @@ -1704,7 +1776,11 @@ impl X64FunctionCode { Location::Imm32(stack_offset as u32), Location::GPR(GPR::RSP), ); - assert!(stack_offset % 8 == 0); + if (stack_offset % 8) != 0 { + return Err(CodegenError { + message: format!("emit_call_sysv: Bad restoring stack alignement"), + }); + } for _ in 0..stack_offset / 8 { m.state.stack_values.pop().unwrap(); } @@ -1737,10 +1813,12 @@ impl X64FunctionCode { m.state.stack_values.pop().unwrap(); } - assert_eq!( - m.state.stack_values.pop().unwrap(), - MachineValue::ExplicitShadow - ); + if m.state.stack_values.pop().unwrap() != MachineValue::ExplicitShadow { + return Err(CodegenError { + message: format!("emit_call_sysv: Popped value is not ExplicitShadow"), + }); + } + Ok(()) } /// Emits a System V call sequence, specialized for labels as the call target. @@ -1750,12 +1828,13 @@ impl X64FunctionCode { label: DynamicLabel, params: I, state_context: Option<(&mut FunctionStateMap, &mut [ControlFrame])>, - ) { - Self::emit_call_sysv(a, m, |a| a.emit_call_label(label), params, state_context) + ) -> Result<(), CodegenError> { + Self::emit_call_sysv(a, m, |a| a.emit_call_label(label), params, state_context)?; + Ok(()) } /// Emits a memory operation. - fn emit_memory_op( + fn emit_memory_op Result<(), CodegenError>>( module_info: &ModuleInfo, config: &CodegenConfig, a: &mut Assembler, @@ -1765,7 +1844,7 @@ impl X64FunctionCode { check_alignment: bool, value_size: usize, cb: F, - ) { + ) -> Result<(), CodegenError> { // If the memory is dynamic, we need to do bound checking at runtime. let mem_desc = match MemoryIndex::new(0).local_or_import(module_info) { LocalOrImport::Local(local_mem_index) => &module_info.memories[local_mem_index], @@ -1855,7 +1934,11 @@ impl X64FunctionCode { 1 => 2, 2 => 4, 3 => 8, - _ => unreachable!("this match is fully covered"), + _ => { + return Err(CodegenError { + message: format!("emit_memory_op align: unreachable value"), + }) + } }; if check_alignment && align != 1 { let tmp_aligncheck = m.acquire_temp_gpr().unwrap(); @@ -1873,9 +1956,10 @@ impl X64FunctionCode { m.release_temp_gpr(tmp_aligncheck); } - cb(a, m, tmp_addr); + cb(a, m, tmp_addr)?; m.release_temp_gpr(tmp_addr); + Ok(()) } /// Emits a memory operation. @@ -1892,8 +1976,12 @@ impl X64FunctionCode { memory_sz: Size, stack_sz: Size, cb: F, - ) { - assert!(memory_sz <= stack_sz); + ) -> Result<(), CodegenError> { + if memory_sz > stack_sz { + return Err(CodegenError { + message: format!("emit_compare_and_swap: memory size > stac size"), + }); + } let compare = m.reserve_unused_temp_gpr(GPR::RAX); let value = if loc == Location::GPR(GPR::R14) { @@ -1922,13 +2010,15 @@ impl X64FunctionCode { a.emit_mov(stack_sz, Location::GPR(compare), ret); cb(a, m, compare, value); a.emit_lock_cmpxchg(memory_sz, Location::GPR(value), Location::Memory(addr, 0)); + Ok(()) }, - ); + )?; a.emit_jmp(Condition::NotEqual, retry); a.emit_pop(Size::S64, Location::GPR(value)); m.release_temp_gpr(compare); + Ok(()) } // Checks for underflow/overflow/nan before IxxTrunc{U/S}F32. @@ -2149,8 +2239,11 @@ impl FunctionCodeGenerator for X64FunctionCode { Location::GPR(GPR::RAX), ); - assert_eq!(self.machine.state.wasm_inst_offset, usize::MAX); - + if self.machine.state.wasm_inst_offset != usize::MAX { + return Err(CodegenError { + message: format!("begin_body: wasm_inst_offset not usize::MAX"), + }); + } Ok(()) } @@ -2229,7 +2322,11 @@ impl FunctionCodeGenerator for X64FunctionCode { InternalEvent::FunctionBegin(_) | InternalEvent::FunctionEnd => {} InternalEvent::GetInternal(idx) => { let idx = idx as usize; - assert!(idx < INTERNALS_SIZE); + if idx >= INTERNALS_SIZE { + return Err(CodegenError { + message: format!("GetInternal: incorrect index value"), + }); + } let tmp = self.machine.acquire_temp_gpr().unwrap(); @@ -2264,7 +2361,11 @@ impl FunctionCodeGenerator for X64FunctionCode { } InternalEvent::SetInternal(idx) => { let idx = idx as usize; - assert!(idx < INTERNALS_SIZE); + if idx >= INTERNALS_SIZE { + return Err(CodegenError { + message: format!("SetInternal: incorrect index value"), + }); + } let tmp = self.machine.acquire_temp_gpr().unwrap(); @@ -2384,7 +2485,11 @@ impl FunctionCodeGenerator for X64FunctionCode { ); } else { global_index -= module_info.imported_globals.len(); - assert!(global_index < module_info.globals.len()); + if global_index >= module_info.globals.len() { + return Err(CodegenError { + message: format!("SetGlobal: incorrect global_index value"), + }); + } a.emit_mov( Size::S64, Location::Memory( @@ -2630,20 +2735,20 @@ impl FunctionCodeGenerator for X64FunctionCode { &mut self.machine, &mut self.value_stack, Condition::Equal, - ), + )?, Operator::I32Ne => Self::emit_cmpop_i32( a, &mut self.machine, &mut self.value_stack, Condition::NotEqual, - ), + )?, Operator::I32Eqz => Self::emit_cmpop_i32_dynamic_b( a, &mut self.machine, &mut self.value_stack, Condition::Equal, Location::Imm32(0), - ), + )?, Operator::I32Clz => { let loc = get_location_released(a, &mut self.machine, self.value_stack.pop().unwrap()); @@ -2654,7 +2759,11 @@ impl FunctionCodeGenerator for X64FunctionCode { tmp } Location::GPR(reg) => reg, - _ => unreachable!(), + _ => { + return Err(CodegenError { + message: format!("I32Clz src: unreachable code"), + }) + } }; let ret = self.machine.acquire_locations( @@ -2667,7 +2776,11 @@ impl FunctionCodeGenerator for X64FunctionCode { let dst = match ret { Location::Memory(_, _) => self.machine.acquire_temp_gpr().unwrap(), Location::GPR(reg) => reg, - _ => unreachable!(), + _ => { + return Err(CodegenError { + message: format!("I32Clz dst: unreachable code"), + }) + } }; if a.arch_has_xzcnt() { @@ -2710,7 +2823,11 @@ impl FunctionCodeGenerator for X64FunctionCode { tmp } Location::GPR(reg) => reg, - _ => unreachable!(), + _ => { + return Err(CodegenError { + message: format!("I32Ctz src: unreachable code"), + }) + } }; let ret = self.machine.acquire_locations( @@ -2723,7 +2840,11 @@ impl FunctionCodeGenerator for X64FunctionCode { let dst = match ret { Location::Memory(_, _) => self.machine.acquire_temp_gpr().unwrap(), Location::GPR(reg) => reg, - _ => unreachable!(), + _ => { + return Err(CodegenError { + message: format!("I32Ctz dst: unreachable code"), + }) + } }; if a.arch_has_xzcnt() { @@ -2760,7 +2881,7 @@ impl FunctionCodeGenerator for X64FunctionCode { &mut self.machine, &mut self.value_stack, Assembler::emit_popcnt, - ), + )?, Operator::I32Shl => Self::emit_shift_i32( a, &mut self.machine, @@ -2796,46 +2917,46 @@ impl FunctionCodeGenerator for X64FunctionCode { &mut self.machine, &mut self.value_stack, Condition::Below, - ), + )?, Operator::I32LeU => Self::emit_cmpop_i32( a, &mut self.machine, &mut self.value_stack, Condition::BelowEqual, - ), + )?, Operator::I32GtU => Self::emit_cmpop_i32( a, &mut self.machine, &mut self.value_stack, Condition::Above, - ), + )?, Operator::I32GeU => Self::emit_cmpop_i32( a, &mut self.machine, &mut self.value_stack, Condition::AboveEqual, - ), + )?, Operator::I32LtS => { - Self::emit_cmpop_i32(a, &mut self.machine, &mut self.value_stack, Condition::Less) + Self::emit_cmpop_i32(a, &mut self.machine, &mut self.value_stack, Condition::Less)?; } Operator::I32LeS => Self::emit_cmpop_i32( a, &mut self.machine, &mut self.value_stack, Condition::LessEqual, - ), + )?, Operator::I32GtS => Self::emit_cmpop_i32( a, &mut self.machine, &mut self.value_stack, Condition::Greater, - ), + )?, Operator::I32GeS => Self::emit_cmpop_i32( a, &mut self.machine, &mut self.value_stack, Condition::GreaterEqual, - ), + )?, Operator::I64Const { value } => { let value = value as u64; self.value_stack.push(Location::Imm64(value)); @@ -3020,20 +3141,20 @@ impl FunctionCodeGenerator for X64FunctionCode { &mut self.machine, &mut self.value_stack, Condition::Equal, - ), + )?, Operator::I64Ne => Self::emit_cmpop_i64( a, &mut self.machine, &mut self.value_stack, Condition::NotEqual, - ), + )?, Operator::I64Eqz => Self::emit_cmpop_i64_dynamic_b( a, &mut self.machine, &mut self.value_stack, Condition::Equal, Location::Imm64(0), - ), + )?, Operator::I64Clz => { let loc = get_location_released(a, &mut self.machine, self.value_stack.pop().unwrap()); @@ -3044,7 +3165,11 @@ impl FunctionCodeGenerator for X64FunctionCode { tmp } Location::GPR(reg) => reg, - _ => unreachable!(), + _ => { + return Err(CodegenError { + message: format!("I64Clz src: unreachable code"), + }) + } }; let ret = self.machine.acquire_locations( @@ -3057,7 +3182,11 @@ impl FunctionCodeGenerator for X64FunctionCode { let dst = match ret { Location::Memory(_, _) => self.machine.acquire_temp_gpr().unwrap(), Location::GPR(reg) => reg, - _ => unreachable!(), + _ => { + return Err(CodegenError { + message: format!("I64Clz dst: unreachable code"), + }) + } }; if a.arch_has_xzcnt() { @@ -3100,7 +3229,11 @@ impl FunctionCodeGenerator for X64FunctionCode { tmp } Location::GPR(reg) => reg, - _ => unreachable!(), + _ => { + return Err(CodegenError { + message: format!("I64Ctz src: unreachable code"), + }) + } }; let ret = self.machine.acquire_locations( @@ -3113,7 +3246,11 @@ impl FunctionCodeGenerator for X64FunctionCode { let dst = match ret { Location::Memory(_, _) => self.machine.acquire_temp_gpr().unwrap(), Location::GPR(reg) => reg, - _ => unreachable!(), + _ => { + return Err(CodegenError { + message: format!("I64Ctz dst: unreachable code"), + }) + } }; if a.arch_has_xzcnt() { @@ -3150,7 +3287,7 @@ impl FunctionCodeGenerator for X64FunctionCode { &mut self.machine, &mut self.value_stack, Assembler::emit_popcnt, - ), + )?, Operator::I64Shl => Self::emit_shift_i64( a, &mut self.machine, @@ -3186,46 +3323,46 @@ impl FunctionCodeGenerator for X64FunctionCode { &mut self.machine, &mut self.value_stack, Condition::Below, - ), + )?, Operator::I64LeU => Self::emit_cmpop_i64( a, &mut self.machine, &mut self.value_stack, Condition::BelowEqual, - ), + )?, Operator::I64GtU => Self::emit_cmpop_i64( a, &mut self.machine, &mut self.value_stack, Condition::Above, - ), + )?, Operator::I64GeU => Self::emit_cmpop_i64( a, &mut self.machine, &mut self.value_stack, Condition::AboveEqual, - ), + )?, Operator::I64LtS => { - Self::emit_cmpop_i64(a, &mut self.machine, &mut self.value_stack, Condition::Less) + Self::emit_cmpop_i64(a, &mut self.machine, &mut self.value_stack, Condition::Less)?; } Operator::I64LeS => Self::emit_cmpop_i64( a, &mut self.machine, &mut self.value_stack, Condition::LessEqual, - ), + )?, Operator::I64GtS => Self::emit_cmpop_i64( a, &mut self.machine, &mut self.value_stack, Condition::Greater, - ), + )?, Operator::I64GeS => Self::emit_cmpop_i64( a, &mut self.machine, &mut self.value_stack, Condition::GreaterEqual, - ), + )?, Operator::I64ExtendUI32 => { let loc = get_location_released(a, &mut self.machine, self.value_stack.pop().unwrap()); @@ -3261,7 +3398,7 @@ impl FunctionCodeGenerator for X64FunctionCode { loc, Size::S64, ret, - ); + )?; } Operator::I32Extend8S => { let loc = @@ -3281,7 +3418,7 @@ impl FunctionCodeGenerator for X64FunctionCode { loc, Size::S32, ret, - ); + )?; } Operator::I32Extend16S => { let loc = @@ -3301,7 +3438,7 @@ impl FunctionCodeGenerator for X64FunctionCode { loc, Size::S32, ret, - ); + )?; } Operator::I64Extend8S => { let loc = @@ -3321,7 +3458,7 @@ impl FunctionCodeGenerator for X64FunctionCode { loc, Size::S64, ret, - ); + )?; } Operator::I64Extend16S => { let loc = @@ -3341,7 +3478,7 @@ impl FunctionCodeGenerator for X64FunctionCode { loc, Size::S64, ret, - ); + )?; } Operator::I64Extend32S => { let loc = @@ -3361,7 +3498,7 @@ impl FunctionCodeGenerator for X64FunctionCode { loc, Size::S64, ret, - ); + )?; } Operator::I32WrapI64 => { let loc = @@ -3394,25 +3531,25 @@ impl FunctionCodeGenerator for X64FunctionCode { &mut self.machine, &mut self.value_stack, Assembler::emit_vaddss, - ), + )?, Operator::F32Sub => Self::emit_fp_binop_avx( a, &mut self.machine, &mut self.value_stack, Assembler::emit_vsubss, - ), + )?, Operator::F32Mul => Self::emit_fp_binop_avx( a, &mut self.machine, &mut self.value_stack, Assembler::emit_vmulss, - ), + )?, Operator::F32Div => Self::emit_fp_binop_avx( a, &mut self.machine, &mut self.value_stack, Assembler::emit_vdivss, - ), + )?, Operator::F32Max => { if !a.arch_supports_canonicalize_nan() { Self::emit_fp_binop_avx( @@ -3420,7 +3557,7 @@ impl FunctionCodeGenerator for X64FunctionCode { &mut self.machine, &mut self.value_stack, Assembler::emit_vmaxss, - ); + )?; } else { let src2 = get_location_released( a, @@ -3460,7 +3597,11 @@ impl FunctionCodeGenerator for X64FunctionCode { a.emit_mov(Size::S64, Location::GPR(tmpg1), Location::XMM(tmp1)); tmp1 } - _ => unreachable!(), + _ => { + return Err(CodegenError { + message: format!("F32Max src1: unreachable code"), + }) + } }; let src2 = match src2 { Location::XMM(x) => x, @@ -3478,7 +3619,11 @@ impl FunctionCodeGenerator for X64FunctionCode { a.emit_mov(Size::S64, Location::GPR(tmpg1), Location::XMM(tmp2)); tmp2 } - _ => unreachable!(), + _ => { + return Err(CodegenError { + message: format!("F32Max src2: unreachable code"), + }) + } }; let tmp_xmm1 = XMM::XMM8; @@ -3515,7 +3660,11 @@ impl FunctionCodeGenerator for X64FunctionCode { Location::Memory(_, _) | Location::GPR(_) => { a.emit_mov(Size::S64, Location::XMM(src1), ret); } - _ => unreachable!(), + _ => { + return Err(CodegenError { + message: format!("F32Max ret: unreachable code"), + }) + } } self.machine.release_temp_gpr(tmpg2); @@ -3531,7 +3680,7 @@ impl FunctionCodeGenerator for X64FunctionCode { &mut self.machine, &mut self.value_stack, Assembler::emit_vminss, - ); + )?; } else { let src2 = get_location_released( a, @@ -3571,7 +3720,11 @@ impl FunctionCodeGenerator for X64FunctionCode { a.emit_mov(Size::S64, Location::GPR(tmpg1), Location::XMM(tmp1)); tmp1 } - _ => unreachable!(), + _ => { + return Err(CodegenError { + message: format!("F32Min src1: unreachable code"), + }) + } }; let src2 = match src2 { Location::XMM(x) => x, @@ -3589,7 +3742,11 @@ impl FunctionCodeGenerator for X64FunctionCode { a.emit_mov(Size::S64, Location::GPR(tmpg1), Location::XMM(tmp2)); tmp2 } - _ => unreachable!(), + _ => { + return Err(CodegenError { + message: format!("F32Min src2: unreachable code"), + }) + } }; let tmp_xmm1 = XMM::XMM8; @@ -3632,7 +3789,11 @@ impl FunctionCodeGenerator for X64FunctionCode { Location::Memory(_, _) | Location::GPR(_) => { a.emit_mov(Size::S64, Location::XMM(src1), ret); } - _ => unreachable!(), + _ => { + return Err(CodegenError { + message: format!("F32Min ret: unreachable code"), + }) + } } self.machine.release_temp_gpr(tmpg2); @@ -3646,67 +3807,67 @@ impl FunctionCodeGenerator for X64FunctionCode { &mut self.machine, &mut self.value_stack, Assembler::emit_vcmpeqss, - ), + )?, Operator::F32Ne => Self::emit_fp_cmpop_avx( a, &mut self.machine, &mut self.value_stack, Assembler::emit_vcmpneqss, - ), + )?, Operator::F32Lt => Self::emit_fp_cmpop_avx( a, &mut self.machine, &mut self.value_stack, Assembler::emit_vcmpltss, - ), + )?, Operator::F32Le => Self::emit_fp_cmpop_avx( a, &mut self.machine, &mut self.value_stack, Assembler::emit_vcmpless, - ), + )?, Operator::F32Gt => Self::emit_fp_cmpop_avx( a, &mut self.machine, &mut self.value_stack, Assembler::emit_vcmpgtss, - ), + )?, Operator::F32Ge => Self::emit_fp_cmpop_avx( a, &mut self.machine, &mut self.value_stack, Assembler::emit_vcmpgess, - ), + )?, Operator::F32Nearest => Self::emit_fp_unop_avx( a, &mut self.machine, &mut self.value_stack, Assembler::emit_vroundss_nearest, - ), + )?, Operator::F32Floor => Self::emit_fp_unop_avx( a, &mut self.machine, &mut self.value_stack, Assembler::emit_vroundss_floor, - ), + )?, Operator::F32Ceil => Self::emit_fp_unop_avx( a, &mut self.machine, &mut self.value_stack, Assembler::emit_vroundss_ceil, - ), + )?, Operator::F32Trunc => Self::emit_fp_unop_avx( a, &mut self.machine, &mut self.value_stack, Assembler::emit_vroundss_trunc, - ), + )?, Operator::F32Sqrt => Self::emit_fp_unop_avx( a, &mut self.machine, &mut self.value_stack, Assembler::emit_vsqrtss, - ), + )?, Operator::F32Copysign => { let loc_b = @@ -3811,25 +3972,25 @@ impl FunctionCodeGenerator for X64FunctionCode { &mut self.machine, &mut self.value_stack, Assembler::emit_vaddsd, - ), + )?, Operator::F64Sub => Self::emit_fp_binop_avx( a, &mut self.machine, &mut self.value_stack, Assembler::emit_vsubsd, - ), + )?, Operator::F64Mul => Self::emit_fp_binop_avx( a, &mut self.machine, &mut self.value_stack, Assembler::emit_vmulsd, - ), + )?, Operator::F64Div => Self::emit_fp_binop_avx( a, &mut self.machine, &mut self.value_stack, Assembler::emit_vdivsd, - ), + )?, Operator::F64Max => { if !a.arch_supports_canonicalize_nan() { Self::emit_fp_binop_avx( @@ -3837,7 +3998,7 @@ impl FunctionCodeGenerator for X64FunctionCode { &mut self.machine, &mut self.value_stack, Assembler::emit_vmaxsd, - ); + )?; } else { let src2 = get_location_released( a, @@ -3877,7 +4038,11 @@ impl FunctionCodeGenerator for X64FunctionCode { a.emit_mov(Size::S64, Location::GPR(tmpg1), Location::XMM(tmp1)); tmp1 } - _ => unreachable!(), + _ => { + return Err(CodegenError { + message: format!("F64Max src1: unreachable code"), + }) + } }; let src2 = match src2 { Location::XMM(x) => x, @@ -3895,7 +4060,11 @@ impl FunctionCodeGenerator for X64FunctionCode { a.emit_mov(Size::S64, Location::GPR(tmpg1), Location::XMM(tmp2)); tmp2 } - _ => unreachable!(), + _ => { + return Err(CodegenError { + message: format!("F64Max src2: unreachable code"), + }) + } }; let tmp_xmm1 = XMM::XMM8; @@ -3932,7 +4101,11 @@ impl FunctionCodeGenerator for X64FunctionCode { Location::Memory(_, _) | Location::GPR(_) => { a.emit_mov(Size::S64, Location::XMM(src1), ret); } - _ => unreachable!(), + _ => { + return Err(CodegenError { + message: format!("F64Max ret: unreachable code"), + }) + } } self.machine.release_temp_gpr(tmpg2); @@ -3948,7 +4121,7 @@ impl FunctionCodeGenerator for X64FunctionCode { &mut self.machine, &mut self.value_stack, Assembler::emit_vminsd, - ); + )?; } else { let src2 = get_location_released( a, @@ -3988,7 +4161,11 @@ impl FunctionCodeGenerator for X64FunctionCode { a.emit_mov(Size::S64, Location::GPR(tmpg1), Location::XMM(tmp1)); tmp1 } - _ => unreachable!(), + _ => { + return Err(CodegenError { + message: format!("F64Min src1: unreachable code"), + }) + } }; let src2 = match src2 { Location::XMM(x) => x, @@ -4006,7 +4183,11 @@ impl FunctionCodeGenerator for X64FunctionCode { a.emit_mov(Size::S64, Location::GPR(tmpg1), Location::XMM(tmp2)); tmp2 } - _ => unreachable!(), + _ => { + return Err(CodegenError { + message: format!("F64Min src2: unreachable code"), + }) + } }; let tmp_xmm1 = XMM::XMM8; @@ -4049,7 +4230,11 @@ impl FunctionCodeGenerator for X64FunctionCode { Location::Memory(_, _) | Location::GPR(_) => { a.emit_mov(Size::S64, Location::XMM(src1), ret); } - _ => unreachable!(), + _ => { + return Err(CodegenError { + message: format!("F64Min ret: unreachable code"), + }) + } } self.machine.release_temp_gpr(tmpg2); @@ -4063,67 +4248,67 @@ impl FunctionCodeGenerator for X64FunctionCode { &mut self.machine, &mut self.value_stack, Assembler::emit_vcmpeqsd, - ), + )?, Operator::F64Ne => Self::emit_fp_cmpop_avx( a, &mut self.machine, &mut self.value_stack, Assembler::emit_vcmpneqsd, - ), + )?, Operator::F64Lt => Self::emit_fp_cmpop_avx( a, &mut self.machine, &mut self.value_stack, Assembler::emit_vcmpltsd, - ), + )?, Operator::F64Le => Self::emit_fp_cmpop_avx( a, &mut self.machine, &mut self.value_stack, Assembler::emit_vcmplesd, - ), + )?, Operator::F64Gt => Self::emit_fp_cmpop_avx( a, &mut self.machine, &mut self.value_stack, Assembler::emit_vcmpgtsd, - ), + )?, Operator::F64Ge => Self::emit_fp_cmpop_avx( a, &mut self.machine, &mut self.value_stack, Assembler::emit_vcmpgesd, - ), + )?, Operator::F64Nearest => Self::emit_fp_unop_avx( a, &mut self.machine, &mut self.value_stack, Assembler::emit_vroundsd_nearest, - ), + )?, Operator::F64Floor => Self::emit_fp_unop_avx( a, &mut self.machine, &mut self.value_stack, Assembler::emit_vroundsd_floor, - ), + )?, Operator::F64Ceil => Self::emit_fp_unop_avx( a, &mut self.machine, &mut self.value_stack, Assembler::emit_vroundsd_ceil, - ), + )?, Operator::F64Trunc => Self::emit_fp_unop_avx( a, &mut self.machine, &mut self.value_stack, Assembler::emit_vroundsd_trunc, - ), + )?, Operator::F64Sqrt => Self::emit_fp_unop_avx( a, &mut self.machine, &mut self.value_stack, Assembler::emit_vsqrtsd, - ), + )?, Operator::F64Copysign => { let loc_b = @@ -4235,13 +4420,13 @@ impl FunctionCodeGenerator for X64FunctionCode { &mut self.machine, &mut self.value_stack, Assembler::emit_vcvtss2sd, - ), + )?, Operator::F32DemoteF64 => Self::emit_fp_unop_avx( a, &mut self.machine, &mut self.value_stack, Assembler::emit_vcvtsd2ss, - ), + )?, Operator::I32ReinterpretF32 => { let loc = @@ -5264,7 +5449,7 @@ impl FunctionCodeGenerator for X64FunctionCode { label, params.iter().map(|x| *x), Some((&mut self.fsm, &mut self.control_stack)), - ); + )?; self.machine.release_locations_only_stack(a, ¶ms); @@ -5282,7 +5467,11 @@ impl FunctionCodeGenerator for X64FunctionCode { } } Operator::CallIndirect { index, table_index } => { - assert_eq!(table_index, 0); + if table_index != 0 { + return Err(CodegenError { + message: format!("CallIndirect: table_index is not 0"), + }); + } let sig = self.signatures.get(SigIndex::new(index as usize)).unwrap(); let param_types: SmallVec<[WpType; 8]> = sig.params().iter().cloned().map(type_to_wp_type).collect(); @@ -5389,7 +5578,7 @@ impl FunctionCodeGenerator for X64FunctionCode { }, params.iter().map(|x| *x), Some((&mut self.fsm, &mut self.control_stack)), - ); + )?; self.machine.release_locations_only_stack(a, ¶ms); @@ -5422,7 +5611,7 @@ impl FunctionCodeGenerator for X64FunctionCode { WpTypeOrFuncType::Type(inner_ty) => smallvec![inner_ty], _ => { return Err(CodegenError { - message: format!("multi-value returns not yet implemented"), + message: format!("If: multi-value returns not yet implemented"), }) } }, @@ -5470,7 +5659,11 @@ impl FunctionCodeGenerator for X64FunctionCode { a.emit_label(label); frame.if_else = IfElseState::Else; } - _ => unreachable!(), + _ => { + return Err(CodegenError { + message: format!("Else: frame.if_else unreachable code"), + }) + } } } Operator::Select => { @@ -5533,7 +5726,7 @@ impl FunctionCodeGenerator for X64FunctionCode { WpTypeOrFuncType::Type(inner_ty) => smallvec![inner_ty], _ => { return Err(CodegenError { - message: format!("multi-value returns not yet implemented"), + message: format!("Block: multi-value returns not yet implemented"), }) } }, @@ -5562,7 +5755,7 @@ impl FunctionCodeGenerator for X64FunctionCode { WpTypeOrFuncType::Type(inner_ty) => smallvec![inner_ty], _ => { return Err(CodegenError { - message: format!("multi-value returns not yet implemented"), + message: format!("Loop: multi-value returns not yet implemented"), }) } }, @@ -5629,7 +5822,7 @@ impl FunctionCodeGenerator for X64FunctionCode { }, iter::once(Location::Imm32(memory_index.index() as u32)), None, - ); + )?; let ret = self.machine.acquire_locations( a, &[(WpType::I64, MachineValue::WasmStack(self.value_stack.len()))], @@ -5675,7 +5868,7 @@ impl FunctionCodeGenerator for X64FunctionCode { iter::once(Location::Imm32(memory_index.index() as u32)) .chain(iter::once(param_pages)), None, - ); + )?; self.machine.release_locations_only_stack(a, &[param_pages]); @@ -5715,8 +5908,9 @@ impl FunctionCodeGenerator for X64FunctionCode { Location::Memory(addr, 0), ret, ); + Ok(()) }, - ); + )?; } Operator::F32Load { ref memarg } => { let target = @@ -5746,8 +5940,9 @@ impl FunctionCodeGenerator for X64FunctionCode { Location::Memory(addr, 0), ret, ); + Ok(()) }, - ); + )?; } Operator::I32Load8U { ref memarg } => { let target = @@ -5777,9 +5972,10 @@ impl FunctionCodeGenerator for X64FunctionCode { Location::Memory(addr, 0), Size::S32, ret, - ); + )?; + Ok(()) }, - ); + )?; } Operator::I32Load8S { ref memarg } => { let target = @@ -5809,9 +6005,10 @@ impl FunctionCodeGenerator for X64FunctionCode { Location::Memory(addr, 0), Size::S32, ret, - ); + )?; + Ok(()) }, - ); + )?; } Operator::I32Load16U { ref memarg } => { let target = @@ -5841,9 +6038,10 @@ impl FunctionCodeGenerator for X64FunctionCode { Location::Memory(addr, 0), Size::S32, ret, - ); + )?; + Ok(()) }, - ); + )?; } Operator::I32Load16S { ref memarg } => { let target = @@ -5873,9 +6071,10 @@ impl FunctionCodeGenerator for X64FunctionCode { Location::Memory(addr, 0), Size::S32, ret, - ); + )?; + Ok(()) }, - ); + )?; } Operator::I32Store { ref memarg } => { let target_value = @@ -5901,8 +6100,9 @@ impl FunctionCodeGenerator for X64FunctionCode { target_value, Location::Memory(addr, 0), ); + Ok(()) }, - ); + )?; } Operator::F32Store { ref memarg } => { let target_value = @@ -5928,8 +6128,9 @@ impl FunctionCodeGenerator for X64FunctionCode { target_value, Location::Memory(addr, 0), ); + Ok(()) }, - ); + )?; } Operator::I32Store8 { ref memarg } => { let target_value = @@ -5955,8 +6156,9 @@ impl FunctionCodeGenerator for X64FunctionCode { target_value, Location::Memory(addr, 0), ); + Ok(()) }, - ); + )?; } Operator::I32Store16 { ref memarg } => { let target_value = @@ -5982,8 +6184,9 @@ impl FunctionCodeGenerator for X64FunctionCode { target_value, Location::Memory(addr, 0), ); + Ok(()) }, - ); + )?; } Operator::I64Load { ref memarg } => { let target = @@ -6013,8 +6216,9 @@ impl FunctionCodeGenerator for X64FunctionCode { Location::Memory(addr, 0), ret, ); + Ok(()) }, - ); + )?; } Operator::F64Load { ref memarg } => { let target = @@ -6044,8 +6248,9 @@ impl FunctionCodeGenerator for X64FunctionCode { Location::Memory(addr, 0), ret, ); + Ok(()) }, - ); + )?; } Operator::I64Load8U { ref memarg } => { let target = @@ -6075,9 +6280,10 @@ impl FunctionCodeGenerator for X64FunctionCode { Location::Memory(addr, 0), Size::S64, ret, - ); + )?; + Ok(()) }, - ); + )?; } Operator::I64Load8S { ref memarg } => { let target = @@ -6107,9 +6313,10 @@ impl FunctionCodeGenerator for X64FunctionCode { Location::Memory(addr, 0), Size::S64, ret, - ); + )?; + Ok(()) }, - ); + )?; } Operator::I64Load16U { ref memarg } => { let target = @@ -6139,9 +6346,10 @@ impl FunctionCodeGenerator for X64FunctionCode { Location::Memory(addr, 0), Size::S64, ret, - ); + )?; + Ok(()) }, - ); + )?; } Operator::I64Load16S { ref memarg } => { let target = @@ -6171,9 +6379,10 @@ impl FunctionCodeGenerator for X64FunctionCode { Location::Memory(addr, 0), Size::S64, ret, - ); + )?; + Ok(()) }, - ); + )?; } Operator::I64Load32U { ref memarg } => { let target = @@ -6204,7 +6413,11 @@ impl FunctionCodeGenerator for X64FunctionCode { Location::Memory(base, offset + 4), ); // clear upper bits } - _ => unreachable!(), + _ => { + return Err(CodegenError { + message: format!("I64Load32U ret: unreachable code"), + }) + } } Self::emit_relaxed_binop( a, @@ -6214,8 +6427,9 @@ impl FunctionCodeGenerator for X64FunctionCode { Location::Memory(addr, 0), ret, ); + Ok(()) }, - ); + )?; } Operator::I64Load32S { ref memarg } => { let target = @@ -6245,9 +6459,10 @@ impl FunctionCodeGenerator for X64FunctionCode { Location::Memory(addr, 0), Size::S64, ret, - ); + )?; + Ok(()) }, - ); + )?; } Operator::I64Store { ref memarg } => { let target_value = @@ -6273,8 +6488,9 @@ impl FunctionCodeGenerator for X64FunctionCode { target_value, Location::Memory(addr, 0), ); + Ok(()) }, - ); + )?; } Operator::F64Store { ref memarg } => { let target_value = @@ -6300,8 +6516,9 @@ impl FunctionCodeGenerator for X64FunctionCode { target_value, Location::Memory(addr, 0), ); + Ok(()) }, - ); + )?; } Operator::I64Store8 { ref memarg } => { let target_value = @@ -6327,8 +6544,9 @@ impl FunctionCodeGenerator for X64FunctionCode { target_value, Location::Memory(addr, 0), ); + Ok(()) }, - ); + )?; } Operator::I64Store16 { ref memarg } => { let target_value = @@ -6354,8 +6572,9 @@ impl FunctionCodeGenerator for X64FunctionCode { target_value, Location::Memory(addr, 0), ); + Ok(()) }, - ); + )?; } Operator::I64Store32 { ref memarg } => { let target_value = @@ -6381,8 +6600,9 @@ impl FunctionCodeGenerator for X64FunctionCode { target_value, Location::Memory(addr, 0), ); + Ok(()) }, - ); + )?; } Operator::Unreachable => { Self::mark_trappable(a, &self.machine, &mut self.fsm, &mut self.control_stack); @@ -6392,7 +6612,11 @@ impl FunctionCodeGenerator for X64FunctionCode { Operator::Return => { let frame = &self.control_stack[0]; if frame.returns.len() > 0 { - assert_eq!(frame.returns.len(), 1); + if frame.returns.len() != 1 { + return Err(CodegenError { + message: format!("Return: incorrect frame.returns"), + }); + } let loc = *self.value_stack.last().unwrap(); Self::emit_relaxed_binop( a, @@ -6412,7 +6636,11 @@ impl FunctionCodeGenerator for X64FunctionCode { let frame = &self.control_stack[self.control_stack.len() - 1 - (relative_depth as usize)]; if !frame.loop_like && frame.returns.len() > 0 { - assert_eq!(frame.returns.len(), 1); + if frame.returns.len() != 1 { + return Err(CodegenError { + message: format!("Br: incorrect frame.returns"), + }); + } let loc = *self.value_stack.last().unwrap(); a.emit_mov(Size::S64, loc, Location::GPR(GPR::RAX)); } @@ -6438,7 +6666,11 @@ impl FunctionCodeGenerator for X64FunctionCode { let frame = &self.control_stack[self.control_stack.len() - 1 - (relative_depth as usize)]; if !frame.loop_like && frame.returns.len() > 0 { - assert_eq!(frame.returns.len(), 1); + if frame.returns.len() != 1 { + return Err(CodegenError { + message: format!("BrIf: incorrect frame.returns"), + }); + } let loc = *self.value_stack.last().unwrap(); a.emit_mov(Size::S64, loc, Location::GPR(GPR::RAX)); } @@ -6449,7 +6681,9 @@ impl FunctionCodeGenerator for X64FunctionCode { a.emit_label(after); } Operator::BrTable { ref table } => { - let (targets, default_target) = table.read_table().unwrap(); + let (targets, default_target) = table.read_table().map_err(|e| CodegenError { + message: format!("BrTable read_table: {:?}", e), + })?; let cond = get_location_released(a, &mut self.machine, self.value_stack.pop().unwrap()); let table_label = a.get_label(); @@ -6480,7 +6714,14 @@ impl FunctionCodeGenerator for X64FunctionCode { let frame = &self.control_stack[self.control_stack.len() - 1 - (*target as usize)]; if !frame.loop_like && frame.returns.len() > 0 { - assert_eq!(frame.returns.len(), 1); + if frame.returns.len() != 1 { + return Err(CodegenError { + message: format!( + "BrTable: incorrect frame.returns for {:?}", + target + ), + }); + } let loc = *self.value_stack.last().unwrap(); a.emit_mov(Size::S64, loc, Location::GPR(GPR::RAX)); } @@ -6494,7 +6735,11 @@ impl FunctionCodeGenerator for X64FunctionCode { let frame = &self.control_stack [self.control_stack.len() - 1 - (default_target as usize)]; if !frame.loop_like && frame.returns.len() > 0 { - assert_eq!(frame.returns.len(), 1); + if frame.returns.len() != 1 { + return Err(CodegenError { + message: format!("BrTable: incorrect frame.returns"), + }); + } let loc = *self.value_stack.last().unwrap(); a.emit_mov(Size::S64, loc, Location::GPR(GPR::RAX)); } @@ -6547,7 +6792,11 @@ impl FunctionCodeGenerator for X64FunctionCode { } if frame.returns.len() > 0 { - assert_eq!(frame.returns.len(), 1); + if frame.returns.len() != 1 { + return Err(CodegenError { + message: format!("End: incorrect frame.returns"), + }); + } let loc = self.machine.acquire_locations( a, &[( @@ -6598,8 +6847,9 @@ impl FunctionCodeGenerator for X64FunctionCode { Location::Memory(addr, 0), ret, ); + Ok(()) }, - ); + )?; } Operator::I32AtomicLoad8U { ref memarg } => { let target = @@ -6629,9 +6879,10 @@ impl FunctionCodeGenerator for X64FunctionCode { Location::Memory(addr, 0), Size::S32, ret, - ); + )?; + Ok(()) }, - ); + )?; } Operator::I32AtomicLoad16U { ref memarg } => { let target = @@ -6661,9 +6912,10 @@ impl FunctionCodeGenerator for X64FunctionCode { Location::Memory(addr, 0), Size::S32, ret, - ); + )?; + Ok(()) }, - ); + )?; } Operator::I32AtomicStore { ref memarg } => { let target_value = @@ -6689,8 +6941,9 @@ impl FunctionCodeGenerator for X64FunctionCode { target_value, Location::Memory(addr, 0), ); + Ok(()) }, - ); + )?; } Operator::I32AtomicStore8 { ref memarg } => { let target_value = @@ -6716,8 +6969,9 @@ impl FunctionCodeGenerator for X64FunctionCode { target_value, Location::Memory(addr, 0), ); + Ok(()) }, - ); + )?; } Operator::I32AtomicStore16 { ref memarg } => { let target_value = @@ -6743,8 +6997,9 @@ impl FunctionCodeGenerator for X64FunctionCode { target_value, Location::Memory(addr, 0), ); + Ok(()) }, - ); + )?; } Operator::I64AtomicLoad { ref memarg } => { let target = @@ -6774,8 +7029,9 @@ impl FunctionCodeGenerator for X64FunctionCode { Location::Memory(addr, 0), ret, ); + Ok(()) }, - ); + )?; } Operator::I64AtomicLoad8U { ref memarg } => { let target = @@ -6805,9 +7061,10 @@ impl FunctionCodeGenerator for X64FunctionCode { Location::Memory(addr, 0), Size::S64, ret, - ); + )?; + Ok(()) }, - ); + )?; } Operator::I64AtomicLoad16U { ref memarg } => { let target = @@ -6837,9 +7094,10 @@ impl FunctionCodeGenerator for X64FunctionCode { Location::Memory(addr, 0), Size::S64, ret, - ); + )?; + Ok(()) }, - ); + )?; } Operator::I64AtomicLoad32U { ref memarg } => { let target = @@ -6870,7 +7128,11 @@ impl FunctionCodeGenerator for X64FunctionCode { Location::Memory(base, offset + 4), ); // clear upper bits } - _ => unreachable!(), + _ => { + return Err(CodegenError { + message: format!("I64AtomicLoad32U ret: unreachable code"), + }) + } } Self::emit_relaxed_binop( a, @@ -6880,8 +7142,9 @@ impl FunctionCodeGenerator for X64FunctionCode { Location::Memory(addr, 0), ret, ); + Ok(()) }, - ); + )?; } Operator::I64AtomicStore { ref memarg } => { let target_value = @@ -6907,8 +7170,9 @@ impl FunctionCodeGenerator for X64FunctionCode { target_value, Location::Memory(addr, 0), ); + Ok(()) }, - ); + )?; } Operator::I64AtomicStore8 { ref memarg } => { let target_value = @@ -6934,8 +7198,9 @@ impl FunctionCodeGenerator for X64FunctionCode { target_value, Location::Memory(addr, 0), ); + Ok(()) }, - ); + )?; } Operator::I64AtomicStore16 { ref memarg } => { let target_value = @@ -6961,8 +7226,9 @@ impl FunctionCodeGenerator for X64FunctionCode { target_value, Location::Memory(addr, 0), ); + Ok(()) }, - ); + )?; } Operator::I64AtomicStore32 { ref memarg } => { let target_value = @@ -6988,8 +7254,9 @@ impl FunctionCodeGenerator for X64FunctionCode { target_value, Location::Memory(addr, 0), ); + Ok(()) }, - ); + )?; } Operator::I32AtomicRmwAdd { ref memarg } => { let loc = @@ -7015,9 +7282,14 @@ impl FunctionCodeGenerator for X64FunctionCode { true, 4, |a, _m, addr| { - a.emit_lock_xadd(Size::S32, Location::GPR(value), Location::Memory(addr, 0)) + a.emit_lock_xadd( + Size::S32, + Location::GPR(value), + Location::Memory(addr, 0), + ); + Ok(()) }, - ); + )?; a.emit_mov(Size::S32, Location::GPR(value), ret); self.machine.release_temp_gpr(value); } @@ -7045,9 +7317,14 @@ impl FunctionCodeGenerator for X64FunctionCode { true, 8, |a, _m, addr| { - a.emit_lock_xadd(Size::S64, Location::GPR(value), Location::Memory(addr, 0)) + a.emit_lock_xadd( + Size::S64, + Location::GPR(value), + Location::Memory(addr, 0), + ); + Ok(()) }, - ); + )?; a.emit_mov(Size::S64, Location::GPR(value), ret); self.machine.release_temp_gpr(value); } @@ -7075,9 +7352,10 @@ impl FunctionCodeGenerator for X64FunctionCode { true, 1, |a, _m, addr| { - a.emit_lock_xadd(Size::S8, Location::GPR(value), Location::Memory(addr, 0)) + a.emit_lock_xadd(Size::S8, Location::GPR(value), Location::Memory(addr, 0)); + Ok(()) }, - ); + )?; a.emit_mov(Size::S32, Location::GPR(value), ret); self.machine.release_temp_gpr(value); } @@ -7105,9 +7383,14 @@ impl FunctionCodeGenerator for X64FunctionCode { true, 2, |a, _m, addr| { - a.emit_lock_xadd(Size::S16, Location::GPR(value), Location::Memory(addr, 0)) + a.emit_lock_xadd( + Size::S16, + Location::GPR(value), + Location::Memory(addr, 0), + ); + Ok(()) }, - ); + )?; a.emit_mov(Size::S32, Location::GPR(value), ret); self.machine.release_temp_gpr(value); } @@ -7135,9 +7418,10 @@ impl FunctionCodeGenerator for X64FunctionCode { true, 1, |a, _m, addr| { - a.emit_lock_xadd(Size::S8, Location::GPR(value), Location::Memory(addr, 0)) + a.emit_lock_xadd(Size::S8, Location::GPR(value), Location::Memory(addr, 0)); + Ok(()) }, - ); + )?; a.emit_mov(Size::S64, Location::GPR(value), ret); self.machine.release_temp_gpr(value); } @@ -7165,9 +7449,14 @@ impl FunctionCodeGenerator for X64FunctionCode { true, 2, |a, _m, addr| { - a.emit_lock_xadd(Size::S16, Location::GPR(value), Location::Memory(addr, 0)) + a.emit_lock_xadd( + Size::S16, + Location::GPR(value), + Location::Memory(addr, 0), + ); + Ok(()) }, - ); + )?; a.emit_mov(Size::S64, Location::GPR(value), ret); self.machine.release_temp_gpr(value); } @@ -7195,9 +7484,14 @@ impl FunctionCodeGenerator for X64FunctionCode { true, 4, |a, _m, addr| { - a.emit_lock_xadd(Size::S32, Location::GPR(value), Location::Memory(addr, 0)) + a.emit_lock_xadd( + Size::S32, + Location::GPR(value), + Location::Memory(addr, 0), + ); + Ok(()) }, - ); + )?; a.emit_mov(Size::S64, Location::GPR(value), ret); self.machine.release_temp_gpr(value); } @@ -7226,9 +7520,14 @@ impl FunctionCodeGenerator for X64FunctionCode { true, 4, |a, _m, addr| { - a.emit_lock_xadd(Size::S32, Location::GPR(value), Location::Memory(addr, 0)) + a.emit_lock_xadd( + Size::S32, + Location::GPR(value), + Location::Memory(addr, 0), + ); + Ok(()) }, - ); + )?; a.emit_mov(Size::S32, Location::GPR(value), ret); self.machine.release_temp_gpr(value); } @@ -7257,9 +7556,14 @@ impl FunctionCodeGenerator for X64FunctionCode { true, 8, |a, _m, addr| { - a.emit_lock_xadd(Size::S64, Location::GPR(value), Location::Memory(addr, 0)) + a.emit_lock_xadd( + Size::S64, + Location::GPR(value), + Location::Memory(addr, 0), + ); + Ok(()) }, - ); + )?; a.emit_mov(Size::S64, Location::GPR(value), ret); self.machine.release_temp_gpr(value); } @@ -7288,9 +7592,10 @@ impl FunctionCodeGenerator for X64FunctionCode { true, 1, |a, _m, addr| { - a.emit_lock_xadd(Size::S8, Location::GPR(value), Location::Memory(addr, 0)) + a.emit_lock_xadd(Size::S8, Location::GPR(value), Location::Memory(addr, 0)); + Ok(()) }, - ); + )?; a.emit_mov(Size::S32, Location::GPR(value), ret); self.machine.release_temp_gpr(value); } @@ -7319,9 +7624,14 @@ impl FunctionCodeGenerator for X64FunctionCode { true, 2, |a, _m, addr| { - a.emit_lock_xadd(Size::S16, Location::GPR(value), Location::Memory(addr, 0)) + a.emit_lock_xadd( + Size::S16, + Location::GPR(value), + Location::Memory(addr, 0), + ); + Ok(()) }, - ); + )?; a.emit_mov(Size::S32, Location::GPR(value), ret); self.machine.release_temp_gpr(value); } @@ -7350,9 +7660,10 @@ impl FunctionCodeGenerator for X64FunctionCode { true, 1, |a, _m, addr| { - a.emit_lock_xadd(Size::S8, Location::GPR(value), Location::Memory(addr, 0)) + a.emit_lock_xadd(Size::S8, Location::GPR(value), Location::Memory(addr, 0)); + Ok(()) }, - ); + )?; a.emit_mov(Size::S64, Location::GPR(value), ret); self.machine.release_temp_gpr(value); } @@ -7381,9 +7692,14 @@ impl FunctionCodeGenerator for X64FunctionCode { true, 2, |a, _m, addr| { - a.emit_lock_xadd(Size::S16, Location::GPR(value), Location::Memory(addr, 0)) + a.emit_lock_xadd( + Size::S16, + Location::GPR(value), + Location::Memory(addr, 0), + ); + Ok(()) }, - ); + )?; a.emit_mov(Size::S64, Location::GPR(value), ret); self.machine.release_temp_gpr(value); } @@ -7412,9 +7728,14 @@ impl FunctionCodeGenerator for X64FunctionCode { true, 2, |a, _m, addr| { - a.emit_lock_xadd(Size::S32, Location::GPR(value), Location::Memory(addr, 0)) + a.emit_lock_xadd( + Size::S32, + Location::GPR(value), + Location::Memory(addr, 0), + ); + Ok(()) }, - ); + )?; a.emit_mov(Size::S64, Location::GPR(value), ret); self.machine.release_temp_gpr(value); } @@ -7445,7 +7766,7 @@ impl FunctionCodeGenerator for X64FunctionCode { |a, _m, src, dst| { a.emit_and(Size::S32, Location::GPR(src), Location::GPR(dst)); }, - ); + )?; } Operator::I64AtomicRmwAnd { ref memarg } => { let loc = @@ -7474,7 +7795,7 @@ impl FunctionCodeGenerator for X64FunctionCode { |a, _m, src, dst| { a.emit_and(Size::S64, Location::GPR(src), Location::GPR(dst)); }, - ); + )?; } Operator::I32AtomicRmw8UAnd { ref memarg } => { let loc = @@ -7503,7 +7824,7 @@ impl FunctionCodeGenerator for X64FunctionCode { |a, _m, src, dst| { a.emit_and(Size::S32, Location::GPR(src), Location::GPR(dst)); }, - ); + )?; } Operator::I32AtomicRmw16UAnd { ref memarg } => { let loc = @@ -7532,7 +7853,7 @@ impl FunctionCodeGenerator for X64FunctionCode { |a, _m, src, dst| { a.emit_and(Size::S32, Location::GPR(src), Location::GPR(dst)); }, - ); + )?; } Operator::I64AtomicRmw8UAnd { ref memarg } => { let loc = @@ -7561,7 +7882,7 @@ impl FunctionCodeGenerator for X64FunctionCode { |a, _m, src, dst| { a.emit_and(Size::S64, Location::GPR(src), Location::GPR(dst)); }, - ); + )?; } Operator::I64AtomicRmw16UAnd { ref memarg } => { let loc = @@ -7590,7 +7911,7 @@ impl FunctionCodeGenerator for X64FunctionCode { |a, _m, src, dst| { a.emit_and(Size::S64, Location::GPR(src), Location::GPR(dst)); }, - ); + )?; } Operator::I64AtomicRmw32UAnd { ref memarg } => { let loc = @@ -7619,7 +7940,7 @@ impl FunctionCodeGenerator for X64FunctionCode { |a, _m, src, dst| { a.emit_and(Size::S64, Location::GPR(src), Location::GPR(dst)); }, - ); + )?; } Operator::I32AtomicRmwOr { ref memarg } => { let loc = @@ -7648,7 +7969,7 @@ impl FunctionCodeGenerator for X64FunctionCode { |a, _m, src, dst| { a.emit_or(Size::S32, Location::GPR(src), Location::GPR(dst)); }, - ); + )?; } Operator::I64AtomicRmwOr { ref memarg } => { let loc = @@ -7677,7 +7998,7 @@ impl FunctionCodeGenerator for X64FunctionCode { |a, _m, src, dst| { a.emit_or(Size::S64, Location::GPR(src), Location::GPR(dst)); }, - ); + )?; } Operator::I32AtomicRmw8UOr { ref memarg } => { let loc = @@ -7706,7 +8027,7 @@ impl FunctionCodeGenerator for X64FunctionCode { |a, _m, src, dst| { a.emit_or(Size::S32, Location::GPR(src), Location::GPR(dst)); }, - ); + )?; } Operator::I32AtomicRmw16UOr { ref memarg } => { let loc = @@ -7735,7 +8056,7 @@ impl FunctionCodeGenerator for X64FunctionCode { |a, _m, src, dst| { a.emit_or(Size::S32, Location::GPR(src), Location::GPR(dst)); }, - ); + )?; } Operator::I64AtomicRmw8UOr { ref memarg } => { let loc = @@ -7764,7 +8085,7 @@ impl FunctionCodeGenerator for X64FunctionCode { |a, _m, src, dst| { a.emit_or(Size::S64, Location::GPR(src), Location::GPR(dst)); }, - ); + )?; } Operator::I64AtomicRmw16UOr { ref memarg } => { let loc = @@ -7793,7 +8114,7 @@ impl FunctionCodeGenerator for X64FunctionCode { |a, _m, src, dst| { a.emit_or(Size::S64, Location::GPR(src), Location::GPR(dst)); }, - ); + )?; } Operator::I64AtomicRmw32UOr { ref memarg } => { let loc = @@ -7822,7 +8143,7 @@ impl FunctionCodeGenerator for X64FunctionCode { |a, _m, src, dst| { a.emit_or(Size::S64, Location::GPR(src), Location::GPR(dst)); }, - ); + )?; } Operator::I32AtomicRmwXor { ref memarg } => { let loc = @@ -7851,7 +8172,7 @@ impl FunctionCodeGenerator for X64FunctionCode { |a, _m, src, dst| { a.emit_xor(Size::S32, Location::GPR(src), Location::GPR(dst)); }, - ); + )?; } Operator::I64AtomicRmwXor { ref memarg } => { let loc = @@ -7880,7 +8201,7 @@ impl FunctionCodeGenerator for X64FunctionCode { |a, _m, src, dst| { a.emit_xor(Size::S64, Location::GPR(src), Location::GPR(dst)); }, - ); + )?; } Operator::I32AtomicRmw8UXor { ref memarg } => { let loc = @@ -7909,7 +8230,7 @@ impl FunctionCodeGenerator for X64FunctionCode { |a, _m, src, dst| { a.emit_xor(Size::S32, Location::GPR(src), Location::GPR(dst)); }, - ); + )?; } Operator::I32AtomicRmw16UXor { ref memarg } => { let loc = @@ -7938,7 +8259,7 @@ impl FunctionCodeGenerator for X64FunctionCode { |a, _m, src, dst| { a.emit_xor(Size::S32, Location::GPR(src), Location::GPR(dst)); }, - ); + )?; } Operator::I64AtomicRmw8UXor { ref memarg } => { let loc = @@ -7967,7 +8288,7 @@ impl FunctionCodeGenerator for X64FunctionCode { |a, _m, src, dst| { a.emit_xor(Size::S64, Location::GPR(src), Location::GPR(dst)); }, - ); + )?; } Operator::I64AtomicRmw16UXor { ref memarg } => { let loc = @@ -7996,7 +8317,7 @@ impl FunctionCodeGenerator for X64FunctionCode { |a, _m, src, dst| { a.emit_xor(Size::S64, Location::GPR(src), Location::GPR(dst)); }, - ); + )?; } Operator::I64AtomicRmw32UXor { ref memarg } => { let loc = @@ -8025,7 +8346,7 @@ impl FunctionCodeGenerator for X64FunctionCode { |a, _m, src, dst| { a.emit_xor(Size::S64, Location::GPR(src), Location::GPR(dst)); }, - ); + )?; } Operator::I32AtomicRmwXchg { ref memarg } => { let loc = @@ -8051,9 +8372,10 @@ impl FunctionCodeGenerator for X64FunctionCode { true, 4, |a, _m, addr| { - a.emit_xchg(Size::S32, Location::GPR(value), Location::Memory(addr, 0)) + a.emit_xchg(Size::S32, Location::GPR(value), Location::Memory(addr, 0)); + Ok(()) }, - ); + )?; a.emit_mov(Size::S32, Location::GPR(value), ret); self.machine.release_temp_gpr(value); } @@ -8081,9 +8403,10 @@ impl FunctionCodeGenerator for X64FunctionCode { true, 8, |a, _m, addr| { - a.emit_xchg(Size::S64, Location::GPR(value), Location::Memory(addr, 0)) + a.emit_xchg(Size::S64, Location::GPR(value), Location::Memory(addr, 0)); + Ok(()) }, - ); + )?; a.emit_mov(Size::S64, Location::GPR(value), ret); self.machine.release_temp_gpr(value); } @@ -8111,9 +8434,10 @@ impl FunctionCodeGenerator for X64FunctionCode { true, 1, |a, _m, addr| { - a.emit_xchg(Size::S8, Location::GPR(value), Location::Memory(addr, 0)) + a.emit_xchg(Size::S8, Location::GPR(value), Location::Memory(addr, 0)); + Ok(()) }, - ); + )?; a.emit_mov(Size::S32, Location::GPR(value), ret); self.machine.release_temp_gpr(value); } @@ -8141,9 +8465,10 @@ impl FunctionCodeGenerator for X64FunctionCode { true, 2, |a, _m, addr| { - a.emit_xchg(Size::S16, Location::GPR(value), Location::Memory(addr, 0)) + a.emit_xchg(Size::S16, Location::GPR(value), Location::Memory(addr, 0)); + Ok(()) }, - ); + )?; a.emit_mov(Size::S32, Location::GPR(value), ret); self.machine.release_temp_gpr(value); } @@ -8171,9 +8496,10 @@ impl FunctionCodeGenerator for X64FunctionCode { true, 1, |a, _m, addr| { - a.emit_xchg(Size::S8, Location::GPR(value), Location::Memory(addr, 0)) + a.emit_xchg(Size::S8, Location::GPR(value), Location::Memory(addr, 0)); + Ok(()) }, - ); + )?; a.emit_mov(Size::S64, Location::GPR(value), ret); self.machine.release_temp_gpr(value); } @@ -8201,9 +8527,10 @@ impl FunctionCodeGenerator for X64FunctionCode { true, 2, |a, _m, addr| { - a.emit_xchg(Size::S16, Location::GPR(value), Location::Memory(addr, 0)) + a.emit_xchg(Size::S16, Location::GPR(value), Location::Memory(addr, 0)); + Ok(()) }, - ); + )?; a.emit_mov(Size::S64, Location::GPR(value), ret); self.machine.release_temp_gpr(value); } @@ -8231,9 +8558,10 @@ impl FunctionCodeGenerator for X64FunctionCode { true, 4, |a, _m, addr| { - a.emit_xchg(Size::S32, Location::GPR(value), Location::Memory(addr, 0)) + a.emit_xchg(Size::S32, Location::GPR(value), Location::Memory(addr, 0)); + Ok(()) }, - ); + )?; a.emit_mov(Size::S64, Location::GPR(value), ret); self.machine.release_temp_gpr(value); } @@ -8281,8 +8609,9 @@ impl FunctionCodeGenerator for X64FunctionCode { Location::Memory(addr, 0), ); a.emit_mov(Size::S32, Location::GPR(compare), ret); + Ok(()) }, - ); + )?; a.emit_pop(Size::S64, Location::GPR(value)); self.machine.release_temp_gpr(compare); } @@ -8330,8 +8659,9 @@ impl FunctionCodeGenerator for X64FunctionCode { Location::Memory(addr, 0), ); a.emit_mov(Size::S64, Location::GPR(compare), ret); + Ok(()) }, - ); + )?; a.emit_pop(Size::S64, Location::GPR(value)); self.machine.release_temp_gpr(compare); } @@ -8379,8 +8709,9 @@ impl FunctionCodeGenerator for X64FunctionCode { Location::Memory(addr, 0), ); a.emit_movzx(Size::S8, Location::GPR(compare), Size::S32, ret); + Ok(()) }, - ); + )?; a.emit_pop(Size::S64, Location::GPR(value)); self.machine.release_temp_gpr(compare); } @@ -8428,8 +8759,9 @@ impl FunctionCodeGenerator for X64FunctionCode { Location::Memory(addr, 0), ); a.emit_movzx(Size::S16, Location::GPR(compare), Size::S32, ret); + Ok(()) }, - ); + )?; a.emit_pop(Size::S64, Location::GPR(value)); self.machine.release_temp_gpr(compare); } @@ -8477,8 +8809,9 @@ impl FunctionCodeGenerator for X64FunctionCode { Location::Memory(addr, 0), ); a.emit_movzx(Size::S8, Location::GPR(compare), Size::S64, ret); + Ok(()) }, - ); + )?; a.emit_pop(Size::S64, Location::GPR(value)); self.machine.release_temp_gpr(compare); } @@ -8526,8 +8859,9 @@ impl FunctionCodeGenerator for X64FunctionCode { Location::Memory(addr, 0), ); a.emit_movzx(Size::S16, Location::GPR(compare), Size::S64, ret); + Ok(()) }, - ); + )?; a.emit_pop(Size::S64, Location::GPR(value)); self.machine.release_temp_gpr(compare); } @@ -8575,8 +8909,9 @@ impl FunctionCodeGenerator for X64FunctionCode { Location::Memory(addr, 0), ); a.emit_mov(Size::S32, Location::GPR(compare), ret); + Ok(()) }, - ); + )?; a.emit_pop(Size::S64, Location::GPR(value)); self.machine.release_temp_gpr(compare); } From ae568686cbe6e10402aa3eccc0a242eb8e6a0301 Mon Sep 17 00:00:00 2001 From: Patrick Ventuzelo Date: Mon, 9 Dec 2019 15:48:43 +0100 Subject: [PATCH 2/2] add changelog entry --- CHANGELOG.md | 1 + 1 file changed, 1 insertion(+) diff --git a/CHANGELOG.md b/CHANGELOG.md index a047d4a1f03..ffcf71bb23b 100644 --- a/CHANGELOG.md +++ b/CHANGELOG.md @@ -2,6 +2,7 @@ ## **[Unreleased]** +- [#1052](https://github.com/wasmerio/wasmer/pull/1052) Fix minor panic and improve Error handling in singlepass backend. - [#1033](https://github.com/wasmerio/wasmer/pull/1033) Set cranelift backend as default compiler backend again, require at least one backend to be enabled for Wasmer CLI - [#1030](https://github.com/wasmerio/wasmer/pull/1030) Ability to generate `ImportObject` for a specific version WASI version with the C API. - [#1028](https://github.com/wasmerio/wasmer/pull/1028) Introduce strict/non-strict modes for `get_wasi_version`