/* * Copyright (C) 2021 Intel Corporation. All rights reserved. * SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception */ #include "jit_compiler.h" #include "jit_frontend.h" #include "fe/jit_emit_compare.h" #include "fe/jit_emit_const.h" #include "fe/jit_emit_control.h" #include "fe/jit_emit_conversion.h" #include "fe/jit_emit_exception.h" #include "fe/jit_emit_function.h" #include "fe/jit_emit_memory.h" #include "fe/jit_emit_numberic.h" #include "fe/jit_emit_parametric.h" #include "fe/jit_emit_table.h" #include "fe/jit_emit_variable.h" #include "../interpreter/wasm_interp.h" #include "../interpreter/wasm_opcode.h" #include "../interpreter/wasm_runtime.h" #include "../common/wasm_exec_env.h" static uint32 get_global_base_offset(const WASMModule *module) { uint32 module_inst_struct_size = (uint32)offsetof(WASMModuleInstance, global_table_data.bytes); uint32 mem_inst_size = (uint32)sizeof(WASMMemoryInstance) * (module->import_memory_count + module->memory_count); #if WASM_ENABLE_JIT != 0 /* If the module dosen't have memory, reserve one mem_info space with empty content to align with llvm jit compiler */ if (mem_inst_size == 0) mem_inst_size = (uint32)sizeof(WASMMemoryInstance); #endif /* Size of module inst and memory instances */ return module_inst_struct_size + mem_inst_size; } static uint32 get_first_table_inst_offset(const WASMModule *module) { return get_global_base_offset(module) + module->global_data_size; } uint32 jit_frontend_get_global_data_offset(const WASMModule *module, uint32 global_idx) { uint32 global_base_offset = get_global_base_offset(module); if (global_idx < module->import_global_count) { const WASMGlobalImport *import_global = &((module->import_globals + global_idx)->u.global); return global_base_offset + import_global->data_offset; } else { const WASMGlobal *global = module->globals + (global_idx - module->import_global_count); return global_base_offset + global->data_offset; } } uint32 jit_frontend_get_table_inst_offset(const WASMModule *module, uint32 tbl_idx) { uint32 offset, i = 0; offset = get_first_table_inst_offset(module); while (i < tbl_idx && i < module->import_table_count) { WASMTableImport *import_table = &module->import_tables[i].u.table; offset += (uint32)offsetof(WASMTableInstance, elems); #if WASM_ENABLE_MULTI_MODULE != 0 offset += (uint32)sizeof(uint32) * import_table->max_size; #else offset += (uint32)sizeof(uint32) * (import_table->possible_grow ? import_table->max_size : import_table->init_size); #endif i++; } if (i == tbl_idx) { return offset; } tbl_idx -= module->import_table_count; i -= module->import_table_count; while (i < tbl_idx && i < module->table_count) { WASMTable *table = module->tables + i; offset += (uint32)offsetof(WASMTableInstance, elems); #if WASM_ENABLE_MULTI_MODULE != 0 offset += (uint32)sizeof(uint32) * table->max_size; #else offset += (uint32)sizeof(uint32) * (table->possible_grow ? table->max_size : table->init_size); #endif i++; } return offset; } uint32 jit_frontend_get_module_inst_extra_offset(const WASMModule *module) { uint32 offset = jit_frontend_get_table_inst_offset( module, module->import_table_count + module->table_count); return align_uint(offset, 8); } JitReg get_module_inst_reg(JitFrame *frame) { JitCompContext *cc = frame->cc; if (!frame->module_inst_reg) { frame->module_inst_reg = cc->module_inst_reg; GEN_INSN(LDPTR, frame->module_inst_reg, cc->exec_env_reg, NEW_CONST(I32, offsetof(WASMExecEnv, module_inst))); } return frame->module_inst_reg; } JitReg get_module_reg(JitFrame *frame) { JitCompContext *cc = frame->cc; JitReg module_inst_reg = get_module_inst_reg(frame); if (!frame->module_reg) { frame->module_reg = cc->module_reg; GEN_INSN(LDPTR, frame->module_reg, module_inst_reg, NEW_CONST(I32, offsetof(WASMModuleInstance, module))); } return frame->module_reg; } JitReg get_import_func_ptrs_reg(JitFrame *frame) { JitCompContext *cc = frame->cc; JitReg module_inst_reg = get_module_inst_reg(frame); if (!frame->import_func_ptrs_reg) { frame->import_func_ptrs_reg = cc->import_func_ptrs_reg; GEN_INSN( LDPTR, frame->import_func_ptrs_reg, module_inst_reg, NEW_CONST(I32, offsetof(WASMModuleInstance, import_func_ptrs))); } return frame->import_func_ptrs_reg; } JitReg get_fast_jit_func_ptrs_reg(JitFrame *frame) { JitCompContext *cc = frame->cc; JitReg module_inst_reg = get_module_inst_reg(frame); if (!frame->fast_jit_func_ptrs_reg) { frame->fast_jit_func_ptrs_reg = cc->fast_jit_func_ptrs_reg; GEN_INSN( LDPTR, frame->fast_jit_func_ptrs_reg, module_inst_reg, NEW_CONST(I32, offsetof(WASMModuleInstance, fast_jit_func_ptrs))); } return frame->fast_jit_func_ptrs_reg; } JitReg get_func_type_indexes_reg(JitFrame *frame) { JitCompContext *cc = frame->cc; JitReg module_inst_reg = get_module_inst_reg(frame); if (!frame->func_type_indexes_reg) { frame->func_type_indexes_reg = cc->func_type_indexes_reg; GEN_INSN( LDPTR, frame->func_type_indexes_reg, module_inst_reg, NEW_CONST(I32, offsetof(WASMModuleInstance, func_type_indexes))); } return frame->func_type_indexes_reg; } JitReg get_aux_stack_bound_reg(JitFrame *frame) { JitCompContext *cc = frame->cc; if (!frame->aux_stack_bound_reg) { frame->aux_stack_bound_reg = cc->aux_stack_bound_reg; GEN_INSN( LDI32, frame->aux_stack_bound_reg, cc->exec_env_reg, NEW_CONST(I32, offsetof(WASMExecEnv, aux_stack_boundary.boundary))); } return frame->aux_stack_bound_reg; } JitReg get_aux_stack_bottom_reg(JitFrame *frame) { JitCompContext *cc = frame->cc; if (!frame->aux_stack_bottom_reg) { frame->aux_stack_bottom_reg = cc->aux_stack_bottom_reg; GEN_INSN( LDI32, frame->aux_stack_bottom_reg, cc->exec_env_reg, NEW_CONST(I32, offsetof(WASMExecEnv, aux_stack_bottom.bottom))); } return frame->aux_stack_bottom_reg; } JitReg get_memory_data_reg(JitFrame *frame, uint32 mem_idx) { JitCompContext *cc = frame->cc; JitReg module_inst_reg = get_module_inst_reg(frame); uint32 memory_data_offset = (uint32)offsetof(WASMModuleInstance, global_table_data.bytes) + (uint32)offsetof(WASMMemoryInstance, memory_data); bh_assert(mem_idx == 0); if (!frame->memory_regs[mem_idx].memory_data) { frame->memory_regs[mem_idx].memory_data = cc->memory_regs[mem_idx].memory_data; GEN_INSN(LDPTR, frame->memory_regs[mem_idx].memory_data, module_inst_reg, NEW_CONST(I32, memory_data_offset)); } return frame->memory_regs[mem_idx].memory_data; } JitReg get_memory_data_end_reg(JitFrame *frame, uint32 mem_idx) { JitCompContext *cc = frame->cc; JitReg module_inst_reg = get_module_inst_reg(frame); uint32 memory_data_end_offset = (uint32)offsetof(WASMModuleInstance, global_table_data.bytes) + (uint32)offsetof(WASMMemoryInstance, memory_data_end); bh_assert(mem_idx == 0); if (!frame->memory_regs[mem_idx].memory_data_end) { frame->memory_regs[mem_idx].memory_data_end = cc->memory_regs[mem_idx].memory_data_end; GEN_INSN(LDPTR, frame->memory_regs[mem_idx].memory_data_end, module_inst_reg, NEW_CONST(I32, memory_data_end_offset)); } return frame->memory_regs[mem_idx].memory_data_end; } JitReg get_mem_bound_check_1byte_reg(JitFrame *frame, uint32 mem_idx) { JitCompContext *cc = frame->cc; JitReg module_inst_reg = get_module_inst_reg(frame); uint32 mem_bound_check_1byte_offset = (uint32)offsetof(WASMModuleInstance, global_table_data.bytes) + (uint32)offsetof(WASMMemoryInstance, mem_bound_check_1byte); bh_assert(mem_idx == 0); if (!frame->memory_regs[mem_idx].mem_bound_check_1byte) { frame->memory_regs[mem_idx].mem_bound_check_1byte = cc->memory_regs[mem_idx].mem_bound_check_1byte; #if UINTPTR_MAX == UINT64_MAX GEN_INSN(LDI64, frame->memory_regs[mem_idx].mem_bound_check_1byte, module_inst_reg, NEW_CONST(I32, mem_bound_check_1byte_offset)); #else GEN_INSN(LDI32, frame->memory_regs[mem_idx].mem_bound_check_1byte, module_inst_reg, NEW_CONST(I32, mem_bound_check_1byte_offset)); #endif } return frame->memory_regs[mem_idx].mem_bound_check_1byte; } JitReg get_mem_bound_check_2bytes_reg(JitFrame *frame, uint32 mem_idx) { JitCompContext *cc = frame->cc; JitReg module_inst_reg = get_module_inst_reg(frame); uint32 mem_bound_check_2bytes_offset = (uint32)offsetof(WASMModuleInstance, global_table_data.bytes) + (uint32)offsetof(WASMMemoryInstance, mem_bound_check_2bytes); bh_assert(mem_idx == 0); if (!frame->memory_regs[mem_idx].mem_bound_check_2bytes) { frame->memory_regs[mem_idx].mem_bound_check_2bytes = cc->memory_regs[mem_idx].mem_bound_check_2bytes; #if UINTPTR_MAX == UINT64_MAX GEN_INSN(LDI64, frame->memory_regs[mem_idx].mem_bound_check_2bytes, module_inst_reg, NEW_CONST(I32, mem_bound_check_2bytes_offset)); #else GEN_INSN(LDI32, frame->memory_regs[mem_idx].mem_bound_check_2bytes, module_inst_reg, NEW_CONST(I32, mem_bound_check_2bytes_offset)); #endif } return frame->memory_regs[mem_idx].mem_bound_check_2bytes; } JitReg get_mem_bound_check_4bytes_reg(JitFrame *frame, uint32 mem_idx) { JitCompContext *cc = frame->cc; JitReg module_inst_reg = get_module_inst_reg(frame); uint32 mem_bound_check_4bytes_offset = (uint32)offsetof(WASMModuleInstance, global_table_data.bytes) + (uint32)offsetof(WASMMemoryInstance, mem_bound_check_4bytes); bh_assert(mem_idx == 0); if (!frame->memory_regs[mem_idx].mem_bound_check_4bytes) { frame->memory_regs[mem_idx].mem_bound_check_4bytes = cc->memory_regs[mem_idx].mem_bound_check_4bytes; #if UINTPTR_MAX == UINT64_MAX GEN_INSN(LDI64, frame->memory_regs[mem_idx].mem_bound_check_4bytes, module_inst_reg, NEW_CONST(I32, mem_bound_check_4bytes_offset)); #else GEN_INSN(LDI32, frame->memory_regs[mem_idx].mem_bound_check_4bytes, module_inst_reg, NEW_CONST(I32, mem_bound_check_4bytes_offset)); #endif } return frame->memory_regs[mem_idx].mem_bound_check_4bytes; } JitReg get_mem_bound_check_8bytes_reg(JitFrame *frame, uint32 mem_idx) { JitCompContext *cc = frame->cc; JitReg module_inst_reg = get_module_inst_reg(frame); uint32 mem_bound_check_8bytes_offset = (uint32)offsetof(WASMModuleInstance, global_table_data.bytes) + (uint32)offsetof(WASMMemoryInstance, mem_bound_check_8bytes); bh_assert(mem_idx == 0); if (!frame->memory_regs[mem_idx].mem_bound_check_8bytes) { frame->memory_regs[mem_idx].mem_bound_check_8bytes = cc->memory_regs[mem_idx].mem_bound_check_8bytes; #if UINTPTR_MAX == UINT64_MAX GEN_INSN(LDI64, frame->memory_regs[mem_idx].mem_bound_check_8bytes, module_inst_reg, NEW_CONST(I32, mem_bound_check_8bytes_offset)); #else GEN_INSN(LDI32, frame->memory_regs[mem_idx].mem_bound_check_8bytes, module_inst_reg, NEW_CONST(I32, mem_bound_check_8bytes_offset)); #endif } return frame->memory_regs[mem_idx].mem_bound_check_8bytes; } JitReg get_mem_bound_check_16bytes_reg(JitFrame *frame, uint32 mem_idx) { JitCompContext *cc = frame->cc; JitReg module_inst_reg = get_module_inst_reg(frame); uint32 mem_bound_check_16bytes_offset = (uint32)offsetof(WASMModuleInstance, global_table_data.bytes) + (uint32)offsetof(WASMMemoryInstance, mem_bound_check_16bytes); bh_assert(mem_idx == 0); if (!frame->memory_regs[mem_idx].mem_bound_check_16bytes) { frame->memory_regs[mem_idx].mem_bound_check_16bytes = cc->memory_regs[mem_idx].mem_bound_check_16bytes; #if UINTPTR_MAX == UINT64_MAX GEN_INSN(LDI64, frame->memory_regs[mem_idx].mem_bound_check_16bytes, module_inst_reg, NEW_CONST(I32, mem_bound_check_16bytes_offset)); #else GEN_INSN(LDI32, frame->memory_regs[mem_idx].mem_bound_check_16bytes, module_inst_reg, NEW_CONST(I32, mem_bound_check_16bytes_offset)); #endif } return frame->memory_regs[mem_idx].mem_bound_check_16bytes; } JitReg get_table_elems_reg(JitFrame *frame, uint32 tbl_idx) { JitCompContext *cc = frame->cc; JitReg module_inst = get_module_inst_reg(frame); uint32 offset = jit_frontend_get_table_inst_offset(cc->cur_wasm_module, tbl_idx) + (uint32)offsetof(WASMTableInstance, elems); if (!frame->table_regs[tbl_idx].table_elems) { frame->table_regs[tbl_idx].table_elems = cc->table_regs[tbl_idx].table_elems; GEN_INSN(ADD, frame->table_regs[tbl_idx].table_elems, module_inst, NEW_CONST(PTR, offset)); } return frame->table_regs[tbl_idx].table_elems; } JitReg get_table_cur_size_reg(JitFrame *frame, uint32 tbl_idx) { JitCompContext *cc = frame->cc; JitReg module_inst = get_module_inst_reg(frame); uint32 offset = jit_frontend_get_table_inst_offset(cc->cur_wasm_module, tbl_idx) + (uint32)offsetof(WASMTableInstance, cur_size); if (!frame->table_regs[tbl_idx].table_cur_size) { frame->table_regs[tbl_idx].table_cur_size = cc->table_regs[tbl_idx].table_cur_size; GEN_INSN(LDI32, frame->table_regs[tbl_idx].table_cur_size, module_inst, NEW_CONST(I32, offset)); } return frame->table_regs[tbl_idx].table_cur_size; } void clear_fixed_virtual_regs(JitFrame *frame) { WASMModule *module = frame->cc->cur_wasm_module; uint32 count, i; frame->module_inst_reg = 0; frame->module_reg = 0; frame->import_func_ptrs_reg = 0; frame->fast_jit_func_ptrs_reg = 0; frame->func_type_indexes_reg = 0; frame->aux_stack_bound_reg = 0; frame->aux_stack_bottom_reg = 0; count = module->import_memory_count + module->memory_count; for (i = 0; i < count; i++) { frame->memory_regs[i].memory_data = 0; frame->memory_regs[i].memory_data_end = 0; frame->memory_regs[i].mem_bound_check_1byte = 0; frame->memory_regs[i].mem_bound_check_2bytes = 0; frame->memory_regs[i].mem_bound_check_4bytes = 0; frame->memory_regs[i].mem_bound_check_8bytes = 0; frame->memory_regs[i].mem_bound_check_16bytes = 0; } count = module->import_table_count + module->table_count; for (i = 0; i < count; i++) { frame->table_regs[i].table_elems = 0; frame->table_regs[i].table_cur_size = 0; } } void clear_memory_regs(JitFrame *frame) { WASMModule *module = frame->cc->cur_wasm_module; uint32 count, i; count = module->import_memory_count + module->memory_count; for (i = 0; i < count; i++) { frame->memory_regs[i].memory_data = 0; frame->memory_regs[i].memory_data_end = 0; frame->memory_regs[i].mem_bound_check_1byte = 0; frame->memory_regs[i].mem_bound_check_2bytes = 0; frame->memory_regs[i].mem_bound_check_4bytes = 0; frame->memory_regs[i].mem_bound_check_8bytes = 0; frame->memory_regs[i].mem_bound_check_16bytes = 0; } } void clear_table_regs(JitFrame *frame) { WASMModule *module = frame->cc->cur_wasm_module; uint32 count, i; count = module->import_table_count + module->table_count; for (i = 0; i < count; i++) { frame->table_regs[i].table_cur_size = 0; } } JitReg gen_load_i32(JitFrame *frame, unsigned n) { if (!frame->lp[n].reg) { JitCompContext *cc = frame->cc; frame->lp[n].reg = jit_cc_new_reg_I32(cc); GEN_INSN(LDI32, frame->lp[n].reg, cc->fp_reg, NEW_CONST(I32, offset_of_local(n))); } return frame->lp[n].reg; } JitReg gen_load_i64(JitFrame *frame, unsigned n) { if (!frame->lp[n].reg) { JitCompContext *cc = frame->cc; frame->lp[n].reg = frame->lp[n + 1].reg = jit_cc_new_reg_I64(cc); GEN_INSN(LDI64, frame->lp[n].reg, cc->fp_reg, NEW_CONST(I32, offset_of_local(n))); } return frame->lp[n].reg; } JitReg gen_load_f32(JitFrame *frame, unsigned n) { if (!frame->lp[n].reg) { JitCompContext *cc = frame->cc; frame->lp[n].reg = jit_cc_new_reg_F32(cc); GEN_INSN(LDF32, frame->lp[n].reg, cc->fp_reg, NEW_CONST(I32, offset_of_local(n))); } return frame->lp[n].reg; } JitReg gen_load_f64(JitFrame *frame, unsigned n) { if (!frame->lp[n].reg) { JitCompContext *cc = frame->cc; frame->lp[n].reg = frame->lp[n + 1].reg = jit_cc_new_reg_F64(cc); GEN_INSN(LDF64, frame->lp[n].reg, cc->fp_reg, NEW_CONST(I32, offset_of_local(n))); } return frame->lp[n].reg; } void gen_commit_values(JitFrame *frame, JitValueSlot *begin, JitValueSlot *end) { JitCompContext *cc = frame->cc; JitValueSlot *p; int n; for (p = begin; p < end; p++) { if (!p->dirty) continue; p->dirty = 0; n = p - frame->lp; switch (jit_reg_kind(p->reg)) { case JIT_REG_KIND_I32: GEN_INSN(STI32, p->reg, cc->fp_reg, NEW_CONST(I32, offset_of_local(n))); break; case JIT_REG_KIND_I64: GEN_INSN(STI64, p->reg, cc->fp_reg, NEW_CONST(I32, offset_of_local(n))); (++p)->dirty = 0; break; case JIT_REG_KIND_F32: GEN_INSN(STF32, p->reg, cc->fp_reg, NEW_CONST(I32, offset_of_local(n))); break; case JIT_REG_KIND_F64: GEN_INSN(STF64, p->reg, cc->fp_reg, NEW_CONST(I32, offset_of_local(n))); (++p)->dirty = 0; break; } } } /** * Generate instructions to commit SP and IP pointers to the frame. * * @param frame the frame information */ void gen_commit_sp_ip(JitFrame *frame) { JitCompContext *cc = frame->cc; JitReg sp; if (frame->sp != frame->committed_sp) { sp = jit_cc_new_reg_ptr(cc); GEN_INSN(ADD, sp, cc->fp_reg, NEW_CONST(PTR, offset_of_local(frame->sp - frame->lp))); GEN_INSN(STPTR, sp, cc->fp_reg, NEW_CONST(I32, offsetof(WASMInterpFrame, sp))); frame->committed_sp = frame->sp; } #if 0 /* Disable committing ip currently */ if (frame->ip != frame->committed_ip) { GEN_INSN(STPTR, NEW_CONST(PTR, (uintptr_t)frame->ip), cc->fp_reg, NEW_CONST(I32, offsetof(WASMInterpFrame, ip))); frame->committed_ip = frame->ip; } #endif } static bool create_fixed_virtual_regs(JitCompContext *cc) { WASMModule *module = cc->cur_wasm_module; uint64 total_size; uint32 i, count; cc->module_inst_reg = jit_cc_new_reg_ptr(cc); cc->module_reg = jit_cc_new_reg_ptr(cc); cc->import_func_ptrs_reg = jit_cc_new_reg_ptr(cc); cc->fast_jit_func_ptrs_reg = jit_cc_new_reg_ptr(cc); cc->func_type_indexes_reg = jit_cc_new_reg_ptr(cc); cc->aux_stack_bound_reg = jit_cc_new_reg_I32(cc); cc->aux_stack_bottom_reg = jit_cc_new_reg_I32(cc); count = module->import_memory_count + module->memory_count; if (count > 0) { total_size = (uint64)sizeof(JitMemRegs) * count; if (total_size > UINT32_MAX || !(cc->memory_regs = jit_calloc((uint32)total_size))) { jit_set_last_error(cc, "allocate memory failed"); return false; } for (i = 0; i < count; i++) { cc->memory_regs[i].memory_data = jit_cc_new_reg_ptr(cc); cc->memory_regs[i].memory_data_end = jit_cc_new_reg_ptr(cc); cc->memory_regs[i].mem_bound_check_1byte = jit_cc_new_reg_ptr(cc); cc->memory_regs[i].mem_bound_check_2bytes = jit_cc_new_reg_ptr(cc); cc->memory_regs[i].mem_bound_check_4bytes = jit_cc_new_reg_ptr(cc); cc->memory_regs[i].mem_bound_check_8bytes = jit_cc_new_reg_ptr(cc); cc->memory_regs[i].mem_bound_check_16bytes = jit_cc_new_reg_ptr(cc); } } count = module->import_table_count + module->table_count; if (count > 0) { total_size = (uint64)sizeof(JitTableRegs) * count; if (total_size > UINT32_MAX || !(cc->table_regs = jit_calloc((uint32)total_size))) { jit_set_last_error(cc, "allocate memory failed"); return false; } for (i = 0; i < count; i++) { cc->table_regs[i].table_elems = jit_cc_new_reg_ptr(cc); cc->table_regs[i].table_cur_size = jit_cc_new_reg_I32(cc); } } return true; } static bool form_and_translate_func(JitCompContext *cc) { JitBasicBlock *func_entry_basic_block; JitReg func_entry_label; JitInsn *insn; JitIncomingInsn *incoming_insn, *incoming_insn_next; uint32 i; if (!create_fixed_virtual_regs(cc)) return false; if (!(func_entry_basic_block = jit_frontend_translate_func(cc))) return false; jit_cc_reset_insn_hash(cc); /* The label of the func entry basic block. */ func_entry_label = jit_basic_block_label(func_entry_basic_block); /* Create a JMP instruction jumping to the func entry. */ if (!(insn = jit_cc_new_insn(cc, JMP, func_entry_label))) return false; /* Insert the instruction into the cc entry block. */ jit_basic_block_append_insn(jit_cc_entry_basic_block(cc), insn); /* Patch INSNs jumping to exception basic blocks. */ for (i = 0; i < EXCE_NUM; i++) { incoming_insn = cc->incoming_insns_for_exec_bbs[i]; if (incoming_insn) { if (!(cc->exce_basic_blocks[i] = jit_cc_new_basic_block(cc, 0))) { jit_set_last_error(cc, "create basic block failed"); return false; } while (incoming_insn) { incoming_insn_next = incoming_insn->next; insn = incoming_insn->insn; if (insn->opcode == JIT_OP_JMP) { *(jit_insn_opnd(insn, 0)) = jit_basic_block_label(cc->exce_basic_blocks[i]); } else if (insn->opcode >= JIT_OP_BEQ && insn->opcode <= JIT_OP_BLEU) { *(jit_insn_opnd(insn, 1)) = jit_basic_block_label(cc->exce_basic_blocks[i]); } incoming_insn = incoming_insn_next; } cc->cur_basic_block = cc->exce_basic_blocks[i]; if (i != EXCE_ALREADY_THROWN) { JitReg module_inst_reg = jit_cc_new_reg_ptr(cc); GEN_INSN(LDPTR, module_inst_reg, cc->exec_env_reg, NEW_CONST(I32, offsetof(WASMExecEnv, module_inst))); insn = GEN_INSN( CALLNATIVE, 0, NEW_CONST(PTR, (uintptr_t)jit_set_exception_with_id), 2); if (insn) { *(jit_insn_opndv(insn, 2)) = module_inst_reg; *(jit_insn_opndv(insn, 3)) = NEW_CONST(I32, i); } } GEN_INSN(RETURN, NEW_CONST(I32, JIT_INTERP_ACTION_THROWN)); *(jit_annl_begin_bcip(cc, jit_basic_block_label(cc->cur_basic_block))) = *(jit_annl_end_bcip( cc, jit_basic_block_label(cc->cur_basic_block))) = cc->cur_wasm_module->load_addr; } } *(jit_annl_begin_bcip(cc, cc->entry_label)) = *(jit_annl_end_bcip(cc, cc->entry_label)) = *(jit_annl_begin_bcip(cc, cc->exit_label)) = *(jit_annl_end_bcip(cc, cc->exit_label)) = cc->cur_wasm_module->load_addr; if (jit_get_last_error(cc)) { return false; } return true; } bool jit_pass_frontend(JitCompContext *cc) { /* Enable necessary annotations required at the current stage. */ if (!jit_annl_enable_begin_bcip(cc) || !jit_annl_enable_end_bcip(cc) || !jit_annl_enable_end_sp(cc) || !jit_annr_enable_def_insn(cc) || !jit_cc_enable_insn_hash(cc, 127)) return false; if (!(form_and_translate_func(cc))) return false; /* Release the annotations after local CSE and translation. */ jit_cc_disable_insn_hash(cc); jit_annl_disable_end_sp(cc); return true; } static JitFrame * init_func_translation(JitCompContext *cc) { JitFrame *jit_frame; JitReg top, top_boundary, new_top, frame_boundary, frame_sp; WASMModule *cur_wasm_module = cc->cur_wasm_module; WASMFunction *cur_wasm_func = cc->cur_wasm_func; uint32 cur_wasm_func_idx = cc->cur_wasm_func_idx; uint32 max_locals = cur_wasm_func->param_cell_num + cur_wasm_func->local_cell_num; uint32 max_stacks = cur_wasm_func->max_stack_cell_num; uint64 total_cell_num = (uint64)cur_wasm_func->param_cell_num + (uint64)cur_wasm_func->local_cell_num + (uint64)cur_wasm_func->max_stack_cell_num + ((uint64)cur_wasm_func->max_block_num) * sizeof(WASMBranchBlock) / 4; uint32 frame_size, outs_size, local_size, count; uint32 i, local_off; uint64 total_size; #if WASM_ENABLE_DUMP_CALL_STACK != 0 || WASM_ENABLE_PERF_PROFILING != 0 JitReg module_inst, func_inst; uint32 func_insts_offset; #if WASM_ENABLE_PERF_PROFILING != 0 JitReg time_started; #endif #endif if ((uint64)max_locals + (uint64)max_stacks >= UINT32_MAX || total_cell_num >= UINT32_MAX || !(jit_frame = jit_calloc(offsetof(JitFrame, lp) + sizeof(*jit_frame->lp) * (max_locals + max_stacks)))) { os_printf("allocate jit frame failed\n"); return NULL; } count = cur_wasm_module->import_memory_count + cur_wasm_module->memory_count; if (count > 0) { total_size = (uint64)sizeof(JitMemRegs) * count; if (total_size > UINT32_MAX || !(jit_frame->memory_regs = jit_calloc((uint32)total_size))) { jit_set_last_error(cc, "allocate memory failed"); jit_free(jit_frame); return NULL; } } count = cur_wasm_module->import_table_count + cur_wasm_module->table_count; if (count > 0) { total_size = (uint64)sizeof(JitTableRegs) * count; if (total_size > UINT32_MAX || !(jit_frame->table_regs = jit_calloc((uint32)total_size))) { jit_set_last_error(cc, "allocate memory failed"); if (jit_frame->memory_regs) jit_free(jit_frame->memory_regs); jit_free(jit_frame); return NULL; } } jit_frame->cur_wasm_module = cur_wasm_module; jit_frame->cur_wasm_func = cur_wasm_func; jit_frame->cur_wasm_func_idx = cur_wasm_func_idx; jit_frame->cc = cc; jit_frame->max_locals = max_locals; jit_frame->max_stacks = max_stacks; jit_frame->sp = jit_frame->lp + max_locals; jit_frame->ip = cur_wasm_func->code; cc->jit_frame = jit_frame; cc->cur_basic_block = jit_cc_entry_basic_block(cc); cc->spill_cache_offset = wasm_interp_interp_frame_size(total_cell_num); /* Set spill cache size according to max local cell num, max stack cell num and virtual fixed register num */ cc->spill_cache_size = (max_locals + max_stacks) * 4 + sizeof(void *) * 5; cc->total_frame_size = cc->spill_cache_offset + cc->spill_cache_size; cc->jitted_return_address_offset = offsetof(WASMInterpFrame, jitted_return_addr); cc->cur_basic_block = jit_cc_entry_basic_block(cc); frame_size = outs_size = cc->total_frame_size; local_size = (cur_wasm_func->param_cell_num + cur_wasm_func->local_cell_num) * 4; top = jit_cc_new_reg_ptr(cc); top_boundary = jit_cc_new_reg_ptr(cc); new_top = jit_cc_new_reg_ptr(cc); frame_boundary = jit_cc_new_reg_ptr(cc); frame_sp = jit_cc_new_reg_ptr(cc); #if WASM_ENABLE_DUMP_CALL_STACK != 0 || WASM_ENABLE_PERF_PROFILING != 0 module_inst = jit_cc_new_reg_ptr(cc); func_inst = jit_cc_new_reg_ptr(cc); #if WASM_ENABLE_PERF_PROFILING != 0 time_started = jit_cc_new_reg_I64(cc); /* Call os_time_get_boot_microsecond() to get time_started firstly as there is stack frame switching below, calling native in them may cause register spilling work inproperly */ if (!jit_emit_callnative(cc, os_time_get_boot_microsecond, time_started, NULL, 0)) { return NULL; } #endif #endif /* top = exec_env->wasm_stack.s.top */ GEN_INSN(LDPTR, top, cc->exec_env_reg, NEW_CONST(I32, offsetof(WASMExecEnv, wasm_stack.s.top))); /* top_boundary = exec_env->wasm_stack.s.top_boundary */ GEN_INSN(LDPTR, top_boundary, cc->exec_env_reg, NEW_CONST(I32, offsetof(WASMExecEnv, wasm_stack.s.top_boundary))); /* frame_boundary = top + frame_size + outs_size */ GEN_INSN(ADD, frame_boundary, top, NEW_CONST(PTR, frame_size + outs_size)); /* if frame_boundary > top_boundary, throw stack overflow exception */ GEN_INSN(CMP, cc->cmp_reg, frame_boundary, top_boundary); if (!jit_emit_exception(cc, EXCE_OPERAND_STACK_OVERFLOW, JIT_OP_BGTU, cc->cmp_reg, NULL)) { return NULL; } /* Add first and then sub to reduce one used register */ /* new_top = frame_boundary - outs_size = top + frame_size */ GEN_INSN(SUB, new_top, frame_boundary, NEW_CONST(PTR, outs_size)); /* exec_env->wasm_stack.s.top = new_top */ GEN_INSN(STPTR, new_top, cc->exec_env_reg, NEW_CONST(I32, offsetof(WASMExecEnv, wasm_stack.s.top))); /* frame_sp = frame->lp + local_size */ GEN_INSN(ADD, frame_sp, top, NEW_CONST(PTR, offsetof(WASMInterpFrame, lp) + local_size)); /* frame->sp = frame_sp */ GEN_INSN(STPTR, frame_sp, top, NEW_CONST(I32, offsetof(WASMInterpFrame, sp))); /* frame->prev_frame = fp_reg */ GEN_INSN(STPTR, cc->fp_reg, top, NEW_CONST(I32, offsetof(WASMInterpFrame, prev_frame))); #if WASM_ENABLE_DUMP_CALL_STACK != 0 || WASM_ENABLE_PERF_PROFILING != 0 /* module_inst = exec_env->module_inst */ GEN_INSN(LDPTR, module_inst, cc->exec_env_reg, NEW_CONST(I32, offsetof(WASMExecEnv, module_inst))); func_insts_offset = jit_frontend_get_module_inst_extra_offset(cur_wasm_module) + (uint32)offsetof(WASMModuleInstanceExtra, functions); /* func_inst = module_inst->e->functions */ GEN_INSN(LDPTR, func_inst, module_inst, NEW_CONST(I32, func_insts_offset)); /* func_inst = func_inst + cur_wasm_func_idx */ GEN_INSN(ADD, func_inst, func_inst, NEW_CONST(PTR, (uint32)sizeof(WASMFunctionInstance) * cur_wasm_func_idx)); /* frame->function = func_inst */ GEN_INSN(STPTR, func_inst, top, NEW_CONST(I32, offsetof(WASMInterpFrame, function))); #if WASM_ENABLE_PERF_PROFILING != 0 /* frame->time_started = time_started */ GEN_INSN(STI64, time_started, top, NEW_CONST(I32, offsetof(WASMInterpFrame, time_started))); #endif #endif /* exec_env->cur_frame = top */ GEN_INSN(STPTR, top, cc->exec_env_reg, NEW_CONST(I32, offsetof(WASMExecEnv, cur_frame))); /* fp_reg = top */ GEN_INSN(MOV, cc->fp_reg, top); /* Initialize local variables, set them to 0 */ local_off = (uint32)offsetof(WASMInterpFrame, lp) + cur_wasm_func->param_cell_num * 4; for (i = 0; i < cur_wasm_func->local_cell_num / 2; i++, local_off += 8) { GEN_INSN(STI64, NEW_CONST(I64, 0), cc->fp_reg, NEW_CONST(I32, local_off)); } if (cur_wasm_func->local_cell_num & 1) { GEN_INSN(STI32, NEW_CONST(I32, 0), cc->fp_reg, NEW_CONST(I32, local_off)); } return jit_frame; } static void free_block_memory(JitBlock *block) { if (block->param_types) jit_free(block->param_types); if (block->result_types) jit_free(block->result_types); jit_free(block); } static JitBasicBlock * create_func_block(JitCompContext *cc) { JitBlock *jit_block; WASMFunction *cur_func = cc->cur_wasm_func; WASMType *func_type = cur_func->func_type; uint32 param_count = func_type->param_count; uint32 result_count = func_type->result_count; if (!(jit_block = jit_calloc(sizeof(JitBlock)))) { return NULL; } if (param_count && !(jit_block->param_types = jit_calloc(param_count))) { goto fail; } if (result_count && !(jit_block->result_types = jit_calloc(result_count))) { goto fail; } /* Set block data */ jit_block->label_type = LABEL_TYPE_FUNCTION; jit_block->param_count = param_count; if (param_count) { bh_memcpy_s(jit_block->param_types, param_count, func_type->types, param_count); } jit_block->result_count = result_count; if (result_count) { bh_memcpy_s(jit_block->result_types, result_count, func_type->types + param_count, result_count); } jit_block->wasm_code_end = cur_func->code + cur_func->code_size; jit_block->frame_sp_begin = cc->jit_frame->sp; /* Add function entry block */ if (!(jit_block->basic_block_entry = jit_cc_new_basic_block(cc, 0))) { goto fail; } *(jit_annl_begin_bcip( cc, jit_basic_block_label(jit_block->basic_block_entry))) = cur_func->code; jit_block_stack_push(&cc->block_stack, jit_block); cc->cur_basic_block = jit_block->basic_block_entry; return jit_block->basic_block_entry; fail: free_block_memory(jit_block); return NULL; } #define CHECK_BUF(buf, buf_end, length) \ do { \ if (buf + length > buf_end) { \ jit_set_last_error(cc, "read leb failed: unexpected end."); \ return false; \ } \ } while (0) static bool read_leb(JitCompContext *cc, const uint8 *buf, const uint8 *buf_end, uint32 *p_offset, uint32 maxbits, bool sign, uint64 *p_result) { uint64 result = 0; uint32 shift = 0; uint32 bcnt = 0; uint64 byte; while (true) { CHECK_BUF(buf, buf_end, 1); byte = buf[*p_offset]; *p_offset += 1; result |= ((byte & 0x7f) << shift); shift += 7; if ((byte & 0x80) == 0) { break; } bcnt += 1; } if (bcnt > (maxbits + 6) / 7) { jit_set_last_error(cc, "read leb failed: " "integer representation too long"); return false; } if (sign && (shift < maxbits) && (byte & 0x40)) { /* Sign extend */ result |= (~((uint64)0)) << shift; } *p_result = result; return true; } #define read_leb_uint32(p, p_end, res) \ do { \ uint32 off = 0; \ uint64 res64; \ if (!read_leb(cc, p, p_end, &off, 32, false, &res64)) \ return false; \ p += off; \ res = (uint32)res64; \ } while (0) #define read_leb_int32(p, p_end, res) \ do { \ uint32 off = 0; \ uint64 res64; \ if (!read_leb(cc, p, p_end, &off, 32, true, &res64)) \ return false; \ p += off; \ res = (int32)res64; \ } while (0) #define read_leb_int64(p, p_end, res) \ do { \ uint32 off = 0; \ uint64 res64; \ if (!read_leb(cc, p, p_end, &off, 64, true, &res64)) \ return false; \ p += off; \ res = (int64)res64; \ } while (0) static bool jit_compile_func(JitCompContext *cc) { WASMFunction *cur_func = cc->cur_wasm_func; WASMType *func_type = NULL; uint8 *frame_ip = cur_func->code, opcode, *p_f32, *p_f64; uint8 *frame_ip_end = frame_ip + cur_func->code_size; uint8 *param_types = NULL, *result_types = NULL, value_type; uint16 param_count, result_count; uint32 br_depth, *br_depths, br_count; uint32 func_idx, type_idx, mem_idx, local_idx, global_idx, i; uint32 bytes = 4, align, offset; bool merge_cmp_and_if = false, merge_cmp_and_br_if = false; bool sign = true; int32 i32_const; int64 i64_const; float32 f32_const; float64 f64_const; while (frame_ip < frame_ip_end) { cc->jit_frame->ip = frame_ip; opcode = *frame_ip++; #if 0 /* TODO */ #if WASM_ENABLE_THREAD_MGR != 0 /* Insert suspend check point */ if (cc->enable_thread_mgr) { if (!check_suspend_flags(cc, func_ctx)) return false; } #endif #endif switch (opcode) { case WASM_OP_UNREACHABLE: if (!jit_compile_op_unreachable(cc, &frame_ip)) return false; break; case WASM_OP_NOP: break; case WASM_OP_BLOCK: case WASM_OP_LOOP: case WASM_OP_IF: { value_type = *frame_ip++; if (value_type == VALUE_TYPE_I32 || value_type == VALUE_TYPE_I64 || value_type == VALUE_TYPE_F32 || value_type == VALUE_TYPE_F64 || value_type == VALUE_TYPE_V128 || value_type == VALUE_TYPE_VOID || value_type == VALUE_TYPE_FUNCREF || value_type == VALUE_TYPE_EXTERNREF) { param_count = 0; param_types = NULL; if (value_type == VALUE_TYPE_VOID) { result_count = 0; result_types = NULL; } else { result_count = 1; result_types = &value_type; } } else { jit_set_last_error(cc, "unsupported value type"); return false; } if (!jit_compile_op_block( cc, &frame_ip, frame_ip_end, (uint32)(LABEL_TYPE_BLOCK + opcode - WASM_OP_BLOCK), param_count, param_types, result_count, result_types, merge_cmp_and_if)) return false; /* Clear flag */ merge_cmp_and_if = false; break; } case EXT_OP_BLOCK: case EXT_OP_LOOP: case EXT_OP_IF: { read_leb_uint32(frame_ip, frame_ip_end, type_idx); func_type = cc->cur_wasm_module->types[type_idx]; param_count = func_type->param_count; param_types = func_type->types; result_count = func_type->result_count; result_types = func_type->types + param_count; if (!jit_compile_op_block( cc, &frame_ip, frame_ip_end, (uint32)(LABEL_TYPE_BLOCK + opcode - EXT_OP_BLOCK), param_count, param_types, result_count, result_types, merge_cmp_and_if)) return false; /* Clear flag */ merge_cmp_and_if = false; break; } case WASM_OP_ELSE: if (!jit_compile_op_else(cc, &frame_ip)) return false; break; case WASM_OP_END: if (!jit_compile_op_end(cc, &frame_ip)) return false; break; case WASM_OP_BR: read_leb_uint32(frame_ip, frame_ip_end, br_depth); if (!jit_compile_op_br(cc, br_depth, &frame_ip)) return false; break; case WASM_OP_BR_IF: read_leb_uint32(frame_ip, frame_ip_end, br_depth); if (!jit_compile_op_br_if(cc, br_depth, merge_cmp_and_br_if, &frame_ip)) return false; /* Clear flag */ merge_cmp_and_br_if = false; break; case WASM_OP_BR_TABLE: read_leb_uint32(frame_ip, frame_ip_end, br_count); if (!(br_depths = jit_calloc((uint32)sizeof(uint32) * (br_count + 1)))) { jit_set_last_error(cc, "allocate memory failed."); goto fail; } #if WASM_ENABLE_FAST_INTERP != 0 for (i = 0; i <= br_count; i++) read_leb_uint32(frame_ip, frame_ip_end, br_depths[i]); #else for (i = 0; i <= br_count; i++) br_depths[i] = *frame_ip++; #endif if (!jit_compile_op_br_table(cc, br_depths, br_count, &frame_ip)) { jit_free(br_depths); return false; } jit_free(br_depths); break; #if WASM_ENABLE_FAST_INTERP == 0 case EXT_OP_BR_TABLE_CACHE: { BrTableCache *node = bh_list_first_elem( cc->cur_wasm_module->br_table_cache_list); BrTableCache *node_next; uint8 *p_opcode = frame_ip - 1; read_leb_uint32(frame_ip, frame_ip_end, br_count); while (node) { node_next = bh_list_elem_next(node); if (node->br_table_op_addr == p_opcode) { br_depths = node->br_depths; if (!jit_compile_op_br_table(cc, br_depths, br_count, &frame_ip)) { return false; } break; } node = node_next; } bh_assert(node); break; } #endif case WASM_OP_RETURN: if (!jit_compile_op_return(cc, &frame_ip)) return false; break; case WASM_OP_CALL: read_leb_uint32(frame_ip, frame_ip_end, func_idx); if (!jit_compile_op_call(cc, func_idx, false)) return false; break; case WASM_OP_CALL_INDIRECT: { uint32 tbl_idx; read_leb_uint32(frame_ip, frame_ip_end, type_idx); #if WASM_ENABLE_REF_TYPES != 0 read_leb_uint32(frame_ip, frame_ip_end, tbl_idx); #else frame_ip++; tbl_idx = 0; #endif if (!jit_compile_op_call_indirect(cc, type_idx, tbl_idx)) return false; break; } #if WASM_ENABLE_TAIL_CALL != 0 case WASM_OP_RETURN_CALL: if (!cc->enable_tail_call) { jit_set_last_error(cc, "unsupported opcode"); return false; } read_leb_uint32(frame_ip, frame_ip_end, func_idx); if (!jit_compile_op_call(cc, func_idx, true)) return false; if (!jit_compile_op_return(cc, &frame_ip)) return false; break; case WASM_OP_RETURN_CALL_INDIRECT: { uint32 tbl_idx; if (!cc->enable_tail_call) { jit_set_last_error(cc, "unsupported opcode"); return false; } read_leb_uint32(frame_ip, frame_ip_end, type_idx); #if WASM_ENABLE_REF_TYPES != 0 read_leb_uint32(frame_ip, frame_ip_end, tbl_idx); #else frame_ip++; tbl_idx = 0; #endif if (!jit_compile_op_call_indirect(cc, type_idx, tbl_idx)) return false; if (!jit_compile_op_return(cc, &frame_ip)) return false; break; } #endif /* end of WASM_ENABLE_TAIL_CALL */ case WASM_OP_DROP: if (!jit_compile_op_drop(cc, true)) return false; break; case WASM_OP_DROP_64: if (!jit_compile_op_drop(cc, false)) return false; break; case WASM_OP_SELECT: if (!jit_compile_op_select(cc, true)) return false; break; case WASM_OP_SELECT_64: if (!jit_compile_op_select(cc, false)) return false; break; #if WASM_ENABLE_REF_TYPES != 0 case WASM_OP_SELECT_T: { uint32 vec_len; read_leb_uint32(frame_ip, frame_ip_end, vec_len); bh_assert(vec_len == 1); (void)vec_len; type_idx = *frame_ip++; if (!jit_compile_op_select(cc, (type_idx != VALUE_TYPE_I64) && (type_idx != VALUE_TYPE_F64))) return false; break; } case WASM_OP_TABLE_GET: { uint32 tbl_idx; read_leb_uint32(frame_ip, frame_ip_end, tbl_idx); if (!jit_compile_op_table_get(cc, tbl_idx)) return false; break; } case WASM_OP_TABLE_SET: { uint32 tbl_idx; read_leb_uint32(frame_ip, frame_ip_end, tbl_idx); if (!jit_compile_op_table_set(cc, tbl_idx)) return false; break; } case WASM_OP_REF_NULL: { uint32 ref_type; read_leb_uint32(frame_ip, frame_ip_end, ref_type); if (!jit_compile_op_ref_null(cc, ref_type)) return false; break; } case WASM_OP_REF_IS_NULL: { if (!jit_compile_op_ref_is_null(cc)) return false; break; } case WASM_OP_REF_FUNC: { read_leb_uint32(frame_ip, frame_ip_end, func_idx); if (!jit_compile_op_ref_func(cc, func_idx)) return false; break; } #endif case WASM_OP_GET_LOCAL: read_leb_uint32(frame_ip, frame_ip_end, local_idx); if (!jit_compile_op_get_local(cc, local_idx)) return false; break; case WASM_OP_SET_LOCAL: read_leb_uint32(frame_ip, frame_ip_end, local_idx); if (!jit_compile_op_set_local(cc, local_idx)) return false; break; case WASM_OP_TEE_LOCAL: read_leb_uint32(frame_ip, frame_ip_end, local_idx); if (!jit_compile_op_tee_local(cc, local_idx)) return false; break; case WASM_OP_GET_GLOBAL: case WASM_OP_GET_GLOBAL_64: read_leb_uint32(frame_ip, frame_ip_end, global_idx); if (!jit_compile_op_get_global(cc, global_idx)) return false; break; case WASM_OP_SET_GLOBAL: case WASM_OP_SET_GLOBAL_64: case WASM_OP_SET_GLOBAL_AUX_STACK: read_leb_uint32(frame_ip, frame_ip_end, global_idx); if (!jit_compile_op_set_global( cc, global_idx, opcode == WASM_OP_SET_GLOBAL_AUX_STACK ? true : false)) return false; break; case WASM_OP_I32_LOAD: bytes = 4; sign = true; goto op_i32_load; case WASM_OP_I32_LOAD8_S: case WASM_OP_I32_LOAD8_U: bytes = 1; sign = (opcode == WASM_OP_I32_LOAD8_S) ? true : false; goto op_i32_load; case WASM_OP_I32_LOAD16_S: case WASM_OP_I32_LOAD16_U: bytes = 2; sign = (opcode == WASM_OP_I32_LOAD16_S) ? true : false; op_i32_load: read_leb_uint32(frame_ip, frame_ip_end, align); read_leb_uint32(frame_ip, frame_ip_end, offset); if (!jit_compile_op_i32_load(cc, align, offset, bytes, sign, false)) return false; break; case WASM_OP_I64_LOAD: bytes = 8; sign = true; goto op_i64_load; case WASM_OP_I64_LOAD8_S: case WASM_OP_I64_LOAD8_U: bytes = 1; sign = (opcode == WASM_OP_I64_LOAD8_S) ? true : false; goto op_i64_load; case WASM_OP_I64_LOAD16_S: case WASM_OP_I64_LOAD16_U: bytes = 2; sign = (opcode == WASM_OP_I64_LOAD16_S) ? true : false; goto op_i64_load; case WASM_OP_I64_LOAD32_S: case WASM_OP_I64_LOAD32_U: bytes = 4; sign = (opcode == WASM_OP_I64_LOAD32_S) ? true : false; op_i64_load: read_leb_uint32(frame_ip, frame_ip_end, align); read_leb_uint32(frame_ip, frame_ip_end, offset); if (!jit_compile_op_i64_load(cc, align, offset, bytes, sign, false)) return false; break; case WASM_OP_F32_LOAD: read_leb_uint32(frame_ip, frame_ip_end, align); read_leb_uint32(frame_ip, frame_ip_end, offset); if (!jit_compile_op_f32_load(cc, align, offset)) return false; break; case WASM_OP_F64_LOAD: read_leb_uint32(frame_ip, frame_ip_end, align); read_leb_uint32(frame_ip, frame_ip_end, offset); if (!jit_compile_op_f64_load(cc, align, offset)) return false; break; case WASM_OP_I32_STORE: bytes = 4; goto op_i32_store; case WASM_OP_I32_STORE8: bytes = 1; goto op_i32_store; case WASM_OP_I32_STORE16: bytes = 2; op_i32_store: read_leb_uint32(frame_ip, frame_ip_end, align); read_leb_uint32(frame_ip, frame_ip_end, offset); if (!jit_compile_op_i32_store(cc, align, offset, bytes, false)) return false; break; case WASM_OP_I64_STORE: bytes = 8; goto op_i64_store; case WASM_OP_I64_STORE8: bytes = 1; goto op_i64_store; case WASM_OP_I64_STORE16: bytes = 2; goto op_i64_store; case WASM_OP_I64_STORE32: bytes = 4; op_i64_store: read_leb_uint32(frame_ip, frame_ip_end, align); read_leb_uint32(frame_ip, frame_ip_end, offset); if (!jit_compile_op_i64_store(cc, align, offset, bytes, false)) return false; break; case WASM_OP_F32_STORE: read_leb_uint32(frame_ip, frame_ip_end, align); read_leb_uint32(frame_ip, frame_ip_end, offset); if (!jit_compile_op_f32_store(cc, align, offset)) return false; break; case WASM_OP_F64_STORE: read_leb_uint32(frame_ip, frame_ip_end, align); read_leb_uint32(frame_ip, frame_ip_end, offset); if (!jit_compile_op_f64_store(cc, align, offset)) return false; break; case WASM_OP_MEMORY_SIZE: read_leb_uint32(frame_ip, frame_ip_end, mem_idx); if (!jit_compile_op_memory_size(cc, mem_idx)) return false; break; case WASM_OP_MEMORY_GROW: read_leb_uint32(frame_ip, frame_ip_end, mem_idx); if (!jit_compile_op_memory_grow(cc, mem_idx)) return false; break; case WASM_OP_I32_CONST: read_leb_int32(frame_ip, frame_ip_end, i32_const); if (!jit_compile_op_i32_const(cc, i32_const)) return false; break; case WASM_OP_I64_CONST: read_leb_int64(frame_ip, frame_ip_end, i64_const); if (!jit_compile_op_i64_const(cc, i64_const)) return false; break; case WASM_OP_F32_CONST: p_f32 = (uint8 *)&f32_const; for (i = 0; i < sizeof(float32); i++) *p_f32++ = *frame_ip++; if (!jit_compile_op_f32_const(cc, f32_const)) return false; break; case WASM_OP_F64_CONST: p_f64 = (uint8 *)&f64_const; for (i = 0; i < sizeof(float64); i++) *p_f64++ = *frame_ip++; if (!jit_compile_op_f64_const(cc, f64_const)) return false; break; case WASM_OP_I32_EQZ: case WASM_OP_I32_EQ: case WASM_OP_I32_NE: case WASM_OP_I32_LT_S: case WASM_OP_I32_LT_U: case WASM_OP_I32_GT_S: case WASM_OP_I32_GT_U: case WASM_OP_I32_LE_S: case WASM_OP_I32_LE_U: case WASM_OP_I32_GE_S: case WASM_OP_I32_GE_U: if (!jit_compile_op_i32_compare(cc, INT_EQZ + opcode - WASM_OP_I32_EQZ)) return false; if (frame_ip < frame_ip_end) { /* Merge `CMP, SELECTcc, CMP, BNE` insns into `CMP, Bcc` */ if (*frame_ip == WASM_OP_IF || *frame_ip == EXT_OP_IF) merge_cmp_and_if = true; if (*frame_ip == WASM_OP_BR_IF) merge_cmp_and_br_if = true; } break; case WASM_OP_I64_EQZ: case WASM_OP_I64_EQ: case WASM_OP_I64_NE: case WASM_OP_I64_LT_S: case WASM_OP_I64_LT_U: case WASM_OP_I64_GT_S: case WASM_OP_I64_GT_U: case WASM_OP_I64_LE_S: case WASM_OP_I64_LE_U: case WASM_OP_I64_GE_S: case WASM_OP_I64_GE_U: if (!jit_compile_op_i64_compare(cc, INT_EQZ + opcode - WASM_OP_I64_EQZ)) return false; if (frame_ip < frame_ip_end) { /* Merge `CMP, SELECTcc, CMP, BNE` insns into `CMP, Bcc` */ if (*frame_ip == WASM_OP_IF || *frame_ip == EXT_OP_IF) merge_cmp_and_if = true; if (*frame_ip == WASM_OP_BR_IF) merge_cmp_and_br_if = true; } break; case WASM_OP_F32_EQ: case WASM_OP_F32_NE: case WASM_OP_F32_LT: case WASM_OP_F32_GT: case WASM_OP_F32_LE: case WASM_OP_F32_GE: if (!jit_compile_op_f32_compare(cc, FLOAT_EQ + opcode - WASM_OP_F32_EQ)) return false; if (frame_ip < frame_ip_end) { /* Merge `CMP, SELECTcc, CMP, BNE` insns into `CMP, Bcc` */ if (*frame_ip == WASM_OP_IF || *frame_ip == EXT_OP_IF) merge_cmp_and_if = true; if (*frame_ip == WASM_OP_BR_IF) merge_cmp_and_br_if = true; } break; case WASM_OP_F64_EQ: case WASM_OP_F64_NE: case WASM_OP_F64_LT: case WASM_OP_F64_GT: case WASM_OP_F64_LE: case WASM_OP_F64_GE: if (!jit_compile_op_f64_compare(cc, FLOAT_EQ + opcode - WASM_OP_F64_EQ)) return false; if (frame_ip < frame_ip_end) { /* Merge `CMP, SELECTcc, CMP, BNE` insns into `CMP, Bcc` */ if (*frame_ip == WASM_OP_IF || *frame_ip == EXT_OP_IF) merge_cmp_and_if = true; if (*frame_ip == WASM_OP_BR_IF) merge_cmp_and_br_if = true; } break; case WASM_OP_I32_CLZ: if (!jit_compile_op_i32_clz(cc)) return false; break; case WASM_OP_I32_CTZ: if (!jit_compile_op_i32_ctz(cc)) return false; break; case WASM_OP_I32_POPCNT: if (!jit_compile_op_i32_popcnt(cc)) return false; break; case WASM_OP_I32_ADD: case WASM_OP_I32_SUB: case WASM_OP_I32_MUL: case WASM_OP_I32_DIV_S: case WASM_OP_I32_DIV_U: case WASM_OP_I32_REM_S: case WASM_OP_I32_REM_U: if (!jit_compile_op_i32_arithmetic( cc, INT_ADD + opcode - WASM_OP_I32_ADD, &frame_ip)) return false; break; case WASM_OP_I32_AND: case WASM_OP_I32_OR: case WASM_OP_I32_XOR: if (!jit_compile_op_i32_bitwise(cc, INT_SHL + opcode - WASM_OP_I32_AND)) return false; break; case WASM_OP_I32_SHL: case WASM_OP_I32_SHR_S: case WASM_OP_I32_SHR_U: case WASM_OP_I32_ROTL: case WASM_OP_I32_ROTR: if (!jit_compile_op_i32_shift(cc, INT_SHL + opcode - WASM_OP_I32_SHL)) return false; break; case WASM_OP_I64_CLZ: if (!jit_compile_op_i64_clz(cc)) return false; break; case WASM_OP_I64_CTZ: if (!jit_compile_op_i64_ctz(cc)) return false; break; case WASM_OP_I64_POPCNT: if (!jit_compile_op_i64_popcnt(cc)) return false; break; case WASM_OP_I64_ADD: case WASM_OP_I64_SUB: case WASM_OP_I64_MUL: case WASM_OP_I64_DIV_S: case WASM_OP_I64_DIV_U: case WASM_OP_I64_REM_S: case WASM_OP_I64_REM_U: if (!jit_compile_op_i64_arithmetic( cc, INT_ADD + opcode - WASM_OP_I64_ADD, &frame_ip)) return false; break; case WASM_OP_I64_AND: case WASM_OP_I64_OR: case WASM_OP_I64_XOR: if (!jit_compile_op_i64_bitwise(cc, INT_SHL + opcode - WASM_OP_I64_AND)) return false; break; case WASM_OP_I64_SHL: case WASM_OP_I64_SHR_S: case WASM_OP_I64_SHR_U: case WASM_OP_I64_ROTL: case WASM_OP_I64_ROTR: if (!jit_compile_op_i64_shift(cc, INT_SHL + opcode - WASM_OP_I64_SHL)) return false; break; case WASM_OP_F32_ABS: case WASM_OP_F32_NEG: case WASM_OP_F32_CEIL: case WASM_OP_F32_FLOOR: case WASM_OP_F32_TRUNC: case WASM_OP_F32_NEAREST: case WASM_OP_F32_SQRT: if (!jit_compile_op_f32_math(cc, FLOAT_ABS + opcode - WASM_OP_F32_ABS)) return false; break; case WASM_OP_F32_ADD: case WASM_OP_F32_SUB: case WASM_OP_F32_MUL: case WASM_OP_F32_DIV: case WASM_OP_F32_MIN: case WASM_OP_F32_MAX: if (!jit_compile_op_f32_arithmetic(cc, FLOAT_ADD + opcode - WASM_OP_F32_ADD)) return false; break; case WASM_OP_F32_COPYSIGN: if (!jit_compile_op_f32_copysign(cc)) return false; break; case WASM_OP_F64_ABS: case WASM_OP_F64_NEG: case WASM_OP_F64_CEIL: case WASM_OP_F64_FLOOR: case WASM_OP_F64_TRUNC: case WASM_OP_F64_NEAREST: case WASM_OP_F64_SQRT: if (!jit_compile_op_f64_math(cc, FLOAT_ABS + opcode - WASM_OP_F64_ABS)) return false; break; case WASM_OP_F64_ADD: case WASM_OP_F64_SUB: case WASM_OP_F64_MUL: case WASM_OP_F64_DIV: case WASM_OP_F64_MIN: case WASM_OP_F64_MAX: if (!jit_compile_op_f64_arithmetic(cc, FLOAT_ADD + opcode - WASM_OP_F64_ADD)) return false; break; case WASM_OP_F64_COPYSIGN: if (!jit_compile_op_f64_copysign(cc)) return false; break; case WASM_OP_I32_WRAP_I64: if (!jit_compile_op_i32_wrap_i64(cc)) return false; break; case WASM_OP_I32_TRUNC_S_F32: case WASM_OP_I32_TRUNC_U_F32: sign = (opcode == WASM_OP_I32_TRUNC_S_F32) ? true : false; if (!jit_compile_op_i32_trunc_f32(cc, sign, false)) return false; break; case WASM_OP_I32_TRUNC_S_F64: case WASM_OP_I32_TRUNC_U_F64: sign = (opcode == WASM_OP_I32_TRUNC_S_F64) ? true : false; if (!jit_compile_op_i32_trunc_f64(cc, sign, false)) return false; break; case WASM_OP_I64_EXTEND_S_I32: case WASM_OP_I64_EXTEND_U_I32: sign = (opcode == WASM_OP_I64_EXTEND_S_I32) ? true : false; if (!jit_compile_op_i64_extend_i32(cc, sign)) return false; break; case WASM_OP_I64_TRUNC_S_F32: case WASM_OP_I64_TRUNC_U_F32: sign = (opcode == WASM_OP_I64_TRUNC_S_F32) ? true : false; if (!jit_compile_op_i64_trunc_f32(cc, sign, false)) return false; break; case WASM_OP_I64_TRUNC_S_F64: case WASM_OP_I64_TRUNC_U_F64: sign = (opcode == WASM_OP_I64_TRUNC_S_F64) ? true : false; if (!jit_compile_op_i64_trunc_f64(cc, sign, false)) return false; break; case WASM_OP_F32_CONVERT_S_I32: case WASM_OP_F32_CONVERT_U_I32: sign = (opcode == WASM_OP_F32_CONVERT_S_I32) ? true : false; if (!jit_compile_op_f32_convert_i32(cc, sign)) return false; break; case WASM_OP_F32_CONVERT_S_I64: case WASM_OP_F32_CONVERT_U_I64: sign = (opcode == WASM_OP_F32_CONVERT_S_I64) ? true : false; if (!jit_compile_op_f32_convert_i64(cc, sign)) return false; break; case WASM_OP_F32_DEMOTE_F64: if (!jit_compile_op_f32_demote_f64(cc)) return false; break; case WASM_OP_F64_CONVERT_S_I32: case WASM_OP_F64_CONVERT_U_I32: sign = (opcode == WASM_OP_F64_CONVERT_S_I32) ? true : false; if (!jit_compile_op_f64_convert_i32(cc, sign)) return false; break; case WASM_OP_F64_CONVERT_S_I64: case WASM_OP_F64_CONVERT_U_I64: sign = (opcode == WASM_OP_F64_CONVERT_S_I64) ? true : false; if (!jit_compile_op_f64_convert_i64(cc, sign)) return false; break; case WASM_OP_F64_PROMOTE_F32: if (!jit_compile_op_f64_promote_f32(cc)) return false; break; case WASM_OP_I32_REINTERPRET_F32: if (!jit_compile_op_i32_reinterpret_f32(cc)) return false; break; case WASM_OP_I64_REINTERPRET_F64: if (!jit_compile_op_i64_reinterpret_f64(cc)) return false; break; case WASM_OP_F32_REINTERPRET_I32: if (!jit_compile_op_f32_reinterpret_i32(cc)) return false; break; case WASM_OP_F64_REINTERPRET_I64: if (!jit_compile_op_f64_reinterpret_i64(cc)) return false; break; case WASM_OP_I32_EXTEND8_S: if (!jit_compile_op_i32_extend_i32(cc, 8)) return false; break; case WASM_OP_I32_EXTEND16_S: if (!jit_compile_op_i32_extend_i32(cc, 16)) return false; break; case WASM_OP_I64_EXTEND8_S: if (!jit_compile_op_i64_extend_i64(cc, 8)) return false; break; case WASM_OP_I64_EXTEND16_S: if (!jit_compile_op_i64_extend_i64(cc, 16)) return false; break; case WASM_OP_I64_EXTEND32_S: if (!jit_compile_op_i64_extend_i64(cc, 32)) return false; break; case WASM_OP_MISC_PREFIX: { uint32 opcode1; read_leb_uint32(frame_ip, frame_ip_end, opcode1); opcode = (uint32)opcode1; switch (opcode) { case WASM_OP_I32_TRUNC_SAT_S_F32: case WASM_OP_I32_TRUNC_SAT_U_F32: sign = (opcode == WASM_OP_I32_TRUNC_SAT_S_F32) ? true : false; if (!jit_compile_op_i32_trunc_f32(cc, sign, true)) return false; break; case WASM_OP_I32_TRUNC_SAT_S_F64: case WASM_OP_I32_TRUNC_SAT_U_F64: sign = (opcode == WASM_OP_I32_TRUNC_SAT_S_F64) ? true : false; if (!jit_compile_op_i32_trunc_f64(cc, sign, true)) return false; break; case WASM_OP_I64_TRUNC_SAT_S_F32: case WASM_OP_I64_TRUNC_SAT_U_F32: sign = (opcode == WASM_OP_I64_TRUNC_SAT_S_F32) ? true : false; if (!jit_compile_op_i64_trunc_f32(cc, sign, true)) return false; break; case WASM_OP_I64_TRUNC_SAT_S_F64: case WASM_OP_I64_TRUNC_SAT_U_F64: sign = (opcode == WASM_OP_I64_TRUNC_SAT_S_F64) ? true : false; if (!jit_compile_op_i64_trunc_f64(cc, sign, true)) return false; break; #if WASM_ENABLE_BULK_MEMORY != 0 case WASM_OP_MEMORY_INIT: { uint32 seg_idx = 0; read_leb_uint32(frame_ip, frame_ip_end, seg_idx); read_leb_uint32(frame_ip, frame_ip_end, mem_idx); if (!jit_compile_op_memory_init(cc, mem_idx, seg_idx)) return false; break; } case WASM_OP_DATA_DROP: { uint32 seg_idx; read_leb_uint32(frame_ip, frame_ip_end, seg_idx); if (!jit_compile_op_data_drop(cc, seg_idx)) return false; break; } case WASM_OP_MEMORY_COPY: { uint32 src_mem_idx, dst_mem_idx; read_leb_uint32(frame_ip, frame_ip_end, src_mem_idx); read_leb_uint32(frame_ip, frame_ip_end, dst_mem_idx); if (!jit_compile_op_memory_copy(cc, src_mem_idx, dst_mem_idx)) return false; break; } case WASM_OP_MEMORY_FILL: { read_leb_uint32(frame_ip, frame_ip_end, mem_idx); if (!jit_compile_op_memory_fill(cc, mem_idx)) return false; break; } #endif /* WASM_ENABLE_BULK_MEMORY */ #if WASM_ENABLE_REF_TYPES != 0 case WASM_OP_TABLE_INIT: { uint32 tbl_idx, tbl_seg_idx; read_leb_uint32(frame_ip, frame_ip_end, tbl_seg_idx); read_leb_uint32(frame_ip, frame_ip_end, tbl_idx); if (!jit_compile_op_table_init(cc, tbl_idx, tbl_seg_idx)) return false; break; } case WASM_OP_ELEM_DROP: { uint32 tbl_seg_idx; read_leb_uint32(frame_ip, frame_ip_end, tbl_seg_idx); if (!jit_compile_op_elem_drop(cc, tbl_seg_idx)) return false; break; } case WASM_OP_TABLE_COPY: { uint32 src_tbl_idx, dst_tbl_idx; read_leb_uint32(frame_ip, frame_ip_end, dst_tbl_idx); read_leb_uint32(frame_ip, frame_ip_end, src_tbl_idx); if (!jit_compile_op_table_copy(cc, src_tbl_idx, dst_tbl_idx)) return false; break; } case WASM_OP_TABLE_GROW: { uint32 tbl_idx; read_leb_uint32(frame_ip, frame_ip_end, tbl_idx); if (!jit_compile_op_table_grow(cc, tbl_idx)) return false; break; } case WASM_OP_TABLE_SIZE: { uint32 tbl_idx; read_leb_uint32(frame_ip, frame_ip_end, tbl_idx); if (!jit_compile_op_table_size(cc, tbl_idx)) return false; break; } case WASM_OP_TABLE_FILL: { uint32 tbl_idx; read_leb_uint32(frame_ip, frame_ip_end, tbl_idx); if (!jit_compile_op_table_fill(cc, tbl_idx)) return false; break; } #endif /* WASM_ENABLE_REF_TYPES */ default: jit_set_last_error(cc, "unsupported opcode"); return false; } break; } #if WASM_ENABLE_SHARED_MEMORY != 0 case WASM_OP_ATOMIC_PREFIX: { uint8 bin_op, op_type; if (frame_ip < frame_ip_end) { opcode = *frame_ip++; } if (opcode != WASM_OP_ATOMIC_FENCE) { read_leb_uint32(frame_ip, frame_ip_end, align); read_leb_uint32(frame_ip, frame_ip_end, offset); } switch (opcode) { case WASM_OP_ATOMIC_WAIT32: if (!jit_compile_op_atomic_wait(cc, VALUE_TYPE_I32, align, offset, 4)) return false; break; case WASM_OP_ATOMIC_WAIT64: if (!jit_compile_op_atomic_wait(cc, VALUE_TYPE_I64, align, offset, 8)) return false; break; case WASM_OP_ATOMIC_NOTIFY: if (!jit_compiler_op_atomic_notify(cc, align, offset, bytes)) return false; break; case WASM_OP_ATOMIC_FENCE: /* Skip memory index */ frame_ip++; break; case WASM_OP_ATOMIC_I32_LOAD: bytes = 4; goto op_atomic_i32_load; case WASM_OP_ATOMIC_I32_LOAD8_U: bytes = 1; goto op_atomic_i32_load; case WASM_OP_ATOMIC_I32_LOAD16_U: bytes = 2; op_atomic_i32_load: if (!jit_compile_op_i32_load(cc, align, offset, bytes, sign, true)) return false; break; case WASM_OP_ATOMIC_I64_LOAD: bytes = 8; goto op_atomic_i64_load; case WASM_OP_ATOMIC_I64_LOAD8_U: bytes = 1; goto op_atomic_i64_load; case WASM_OP_ATOMIC_I64_LOAD16_U: bytes = 2; goto op_atomic_i64_load; case WASM_OP_ATOMIC_I64_LOAD32_U: bytes = 4; op_atomic_i64_load: if (!jit_compile_op_i64_load(cc, align, offset, bytes, sign, true)) return false; break; case WASM_OP_ATOMIC_I32_STORE: bytes = 4; goto op_atomic_i32_store; case WASM_OP_ATOMIC_I32_STORE8: bytes = 1; goto op_atomic_i32_store; case WASM_OP_ATOMIC_I32_STORE16: bytes = 2; op_atomic_i32_store: if (!jit_compile_op_i32_store(cc, align, offset, bytes, true)) return false; break; case WASM_OP_ATOMIC_I64_STORE: bytes = 8; goto op_atomic_i64_store; case WASM_OP_ATOMIC_I64_STORE8: bytes = 1; goto op_atomic_i64_store; case WASM_OP_ATOMIC_I64_STORE16: bytes = 2; goto op_atomic_i64_store; case WASM_OP_ATOMIC_I64_STORE32: bytes = 4; op_atomic_i64_store: if (!jit_compile_op_i64_store(cc, align, offset, bytes, true)) return false; break; case WASM_OP_ATOMIC_RMW_I32_CMPXCHG: bytes = 4; op_type = VALUE_TYPE_I32; goto op_atomic_cmpxchg; case WASM_OP_ATOMIC_RMW_I64_CMPXCHG: bytes = 8; op_type = VALUE_TYPE_I64; goto op_atomic_cmpxchg; case WASM_OP_ATOMIC_RMW_I32_CMPXCHG8_U: bytes = 1; op_type = VALUE_TYPE_I32; goto op_atomic_cmpxchg; case WASM_OP_ATOMIC_RMW_I32_CMPXCHG16_U: bytes = 2; op_type = VALUE_TYPE_I32; goto op_atomic_cmpxchg; case WASM_OP_ATOMIC_RMW_I64_CMPXCHG8_U: bytes = 1; op_type = VALUE_TYPE_I64; goto op_atomic_cmpxchg; case WASM_OP_ATOMIC_RMW_I64_CMPXCHG16_U: bytes = 2; op_type = VALUE_TYPE_I64; goto op_atomic_cmpxchg; case WASM_OP_ATOMIC_RMW_I64_CMPXCHG32_U: bytes = 4; op_type = VALUE_TYPE_I64; op_atomic_cmpxchg: if (!jit_compile_op_atomic_cmpxchg(cc, op_type, align, offset, bytes)) return false; break; /* TODO */ /* COMPILE_ATOMIC_RMW(Add, ADD); COMPILE_ATOMIC_RMW(Sub, SUB); COMPILE_ATOMIC_RMW(And, AND); COMPILE_ATOMIC_RMW(Or, OR); COMPILE_ATOMIC_RMW(Xor, XOR); COMPILE_ATOMIC_RMW(Xchg, XCHG); */ build_atomic_rmw: if (!jit_compile_op_atomic_rmw(cc, bin_op, op_type, align, offset, bytes)) return false; break; default: jit_set_last_error(cc, "unsupported opcode"); return false; } break; } #endif /* end of WASM_ENABLE_SHARED_MEMORY */ default: jit_set_last_error(cc, "unsupported opcode"); return false; } /* Error may occur when creating registers, basic blocks, insns, consts and labels, in which the return value may be unchecked, here we check again */ if (jit_get_last_error(cc)) { return false; } } (void)func_idx; return true; fail: return false; } JitBasicBlock * jit_frontend_translate_func(JitCompContext *cc) { JitFrame *jit_frame; JitBasicBlock *basic_block_entry; if (!(jit_frame = init_func_translation(cc))) { return NULL; } if (!(basic_block_entry = create_func_block(cc))) { return NULL; } if (!jit_compile_func(cc)) { return NULL; } return basic_block_entry; } #if 0 #if WASM_ENABLE_THREAD_MGR != 0 bool check_suspend_flags(JitCompContext *cc, JITFuncContext *func_ctx) { LLVMValueRef terminate_addr, terminate_flags, flag, offset, res; JitBasicBlock *terminate_check_block, non_terminate_block; JITFuncType *jit_func_type = func_ctx->jit_func->func_type; JitBasicBlock *terminate_block; /* Offset of suspend_flags */ offset = I32_FIVE; if (!(terminate_addr = LLVMBuildInBoundsGEP( cc->builder, func_ctx->exec_env, &offset, 1, "terminate_addr"))) { jit_set_last_error("llvm build in bounds gep failed"); return false; } if (!(terminate_addr = LLVMBuildBitCast(cc->builder, terminate_addr, INT32_PTR_TYPE, "terminate_addr_ptr"))) { jit_set_last_error("llvm build bit cast failed"); return false; } if (!(terminate_flags = LLVMBuildLoad(cc->builder, terminate_addr, "terminate_flags"))) { jit_set_last_error("llvm build bit cast failed"); return false; } /* Set terminate_flags memory accecc to volatile, so that the value will always be loaded from memory rather than register */ LLVMSetVolatile(terminate_flags, true); CREATE_BASIC_BLOCK(terminate_check_block, "terminate_check"); MOVE_BASIC_BLOCK_AFTER_CURR(terminate_check_block); CREATE_BASIC_BLOCK(non_terminate_block, "non_terminate"); MOVE_BASIC_BLOCK_AFTER_CURR(non_terminate_block); BUILD_ICMP(LLVMIntSGT, terminate_flags, I32_ZERO, res, "need_terminate"); BUILD_COND_BR(res, terminate_check_block, non_terminate_block); /* Move builder to terminate check block */ SET_BUILDER_POS(terminate_check_block); CREATE_BASIC_BLOCK(terminate_block, "terminate"); MOVE_BASIC_BLOCK_AFTER_CURR(terminate_block); if (!(flag = LLVMBuildAnd(cc->builder, terminate_flags, I32_ONE, "termination_flag"))) { jit_set_last_error("llvm build AND failed"); return false; } BUILD_ICMP(LLVMIntSGT, flag, I32_ZERO, res, "need_terminate"); BUILD_COND_BR(res, terminate_block, non_terminate_block); /* Move builder to terminate block */ SET_BUILDER_POS(terminate_block); if (!jit_build_zero_function_ret(cc, func_ctx, jit_func_type)) { goto fail; } /* Move builder to terminate block */ SET_BUILDER_POS(non_terminate_block); return true; fail: return false; } #endif /* End of WASM_ENABLE_THREAD_MGR */ #endif