diff options
Diffstat (limited to 'lldb/source/Plugins/UnwindAssembly/x86/x86AssemblyInspectionEngine.cpp')
| -rw-r--r-- | lldb/source/Plugins/UnwindAssembly/x86/x86AssemblyInspectionEngine.cpp | 30 |
1 files changed, 11 insertions, 19 deletions
diff --git a/lldb/source/Plugins/UnwindAssembly/x86/x86AssemblyInspectionEngine.cpp b/lldb/source/Plugins/UnwindAssembly/x86/x86AssemblyInspectionEngine.cpp index eb1989895af..f8e70204e50 100644 --- a/lldb/source/Plugins/UnwindAssembly/x86/x86AssemblyInspectionEngine.cpp +++ b/lldb/source/Plugins/UnwindAssembly/x86/x86AssemblyInspectionEngine.cpp @@ -304,26 +304,20 @@ bool x86AssemblyInspectionEngine::nonvolatile_reg_p(int machine_regno) { // pushq %rbp [0x55] bool x86AssemblyInspectionEngine::push_rbp_pattern_p() { uint8_t *p = m_cur_insn; - if (*p == 0x55) - return true; - return false; + return *p == 0x55; } // pushq $0 ; the first instruction in start() [0x6a 0x00] bool x86AssemblyInspectionEngine::push_0_pattern_p() { uint8_t *p = m_cur_insn; - if (*p == 0x6a && *(p + 1) == 0x0) - return true; - return false; + return *p == 0x6a && *(p + 1) == 0x0; } // pushq $0 // pushl $0 bool x86AssemblyInspectionEngine::push_imm_pattern_p() { uint8_t *p = m_cur_insn; - if (*p == 0x68 || *p == 0x6a) - return true; - return false; + return *p == 0x68 || *p == 0x6a; } // pushl imm8(%esp) @@ -675,9 +669,7 @@ bool x86AssemblyInspectionEngine::mov_reg_to_local_stack_frame_p( // ret [0xc9] or [0xc2 imm8] or [0xca imm8] bool x86AssemblyInspectionEngine::ret_pattern_p() { uint8_t *p = m_cur_insn; - if (*p == 0xc9 || *p == 0xc2 || *p == 0xca || *p == 0xc3) - return true; - return false; + return *p == 0xc9 || *p == 0xc2 || *p == 0xca || *p == 0xc3; } uint32_t x86AssemblyInspectionEngine::extract_4(uint8_t *b) { @@ -723,7 +715,7 @@ bool x86AssemblyInspectionEngine::GetNonCallSiteUnwindPlanFromAssembly( if (data == nullptr || size == 0) return false; - if (m_register_map_initialized == false) + if (!m_register_map_initialized) return false; addr_t current_func_text_offset = 0; @@ -864,7 +856,7 @@ bool x86AssemblyInspectionEngine::GetNonCallSiteUnwindPlanFromAssembly( // on the stack if (nonvolatile_reg_p(machine_regno) && machine_regno_to_lldb_regno(machine_regno, lldb_regno) && - saved_registers[machine_regno] == false) { + !saved_registers[machine_regno]) { UnwindPlan::Row::RegisterLocation regloc; if (is_aligned) regloc.SetAtAFAPlusOffset(-current_sp_bytes_offset_from_fa); @@ -881,7 +873,7 @@ bool x86AssemblyInspectionEngine::GetNonCallSiteUnwindPlanFromAssembly( if (nonvolatile_reg_p(machine_regno) && machine_regno_to_lldb_regno(machine_regno, lldb_regno) && - saved_registers[machine_regno] == true) { + saved_registers[machine_regno]) { saved_registers[machine_regno] = false; row->RemoveRegisterInfo(lldb_regno); @@ -953,7 +945,7 @@ bool x86AssemblyInspectionEngine::GetNonCallSiteUnwindPlanFromAssembly( else if (mov_reg_to_local_stack_frame_p(machine_regno, stack_offset) && nonvolatile_reg_p(machine_regno) && machine_regno_to_lldb_regno(machine_regno, lldb_regno) && - saved_registers[machine_regno] == false) { + !saved_registers[machine_regno]) { saved_registers[machine_regno] = true; UnwindPlan::Row::RegisterLocation regloc; @@ -1081,7 +1073,7 @@ bool x86AssemblyInspectionEngine::GetNonCallSiteUnwindPlanFromAssembly( } } - if (in_epilogue == false && row_updated) { + if (!in_epilogue && row_updated) { // If we're not in an epilogue sequence, save the updated Row UnwindPlan::Row *newrow = new UnwindPlan::Row; *newrow = *row.get(); @@ -1096,7 +1088,7 @@ bool x86AssemblyInspectionEngine::GetNonCallSiteUnwindPlanFromAssembly( // We may change the sp value without adding a new Row necessarily -- keep // track of it either way. - if (in_epilogue == false) { + if (!in_epilogue) { prologue_completed_sp_bytes_offset_from_cfa = current_sp_bytes_offset_from_fa; prologue_completed_is_aligned = is_aligned; @@ -1362,7 +1354,7 @@ bool x86AssemblyInspectionEngine::FindFirstNonPrologueInstruction( uint8_t *data, size_t size, size_t &offset) { offset = 0; - if (m_register_map_initialized == false) + if (!m_register_map_initialized) return false; while (offset < size) { |
