diff options
Diffstat (limited to 'cgstack.c')
| -rw-r--r-- | cgstack.c | 34 |
1 files changed, 14 insertions, 20 deletions
@@ -3194,7 +3194,7 @@ int block_stack_displacement; static WORD *check_size_p; #endif -static int stack_access_and_adjust_a_stack_pointer (int extra_b_offset) +static int stack_access_and_adjust_a_stack_pointer (int extra_b_offset,int do_not_alter_condition_codes) { int a_offset,b_offset,minimum_b_offset; @@ -3270,32 +3270,34 @@ static int stack_access_and_adjust_a_stack_pointer (int extra_b_offset) if (a_offset!=0) #ifdef I486 - i_lea_id_r (a_offset,A_STACK_POINTER,A_STACK_POINTER); -#else + if (do_not_alter_condition_codes) + i_lea_id_r (a_offset,A_STACK_POINTER,A_STACK_POINTER); + else +#endif if (a_offset>0) i_add_i_r (a_offset,A_STACK_POINTER); else i_sub_i_r (-a_offset,A_STACK_POINTER); -#endif return b_offset; } -static void stack_access (void) +static void stack_access (int do_not_alter_condition_codes) { register int b_offset; - b_offset=stack_access_and_adjust_a_stack_pointer (0); + b_offset=stack_access_and_adjust_a_stack_pointer (0,do_not_alter_condition_codes); if (b_offset!=0) #ifdef I486 - i_lea_id_r (b_offset,B_STACK_POINTER,B_STACK_POINTER); -#else + if (do_not_alter_condition_codes) + i_lea_id_r (b_offset,B_STACK_POINTER,B_STACK_POINTER); + else +#endif if (b_offset>0) i_add_i_r (b_offset,B_STACK_POINTER); else i_sub_i_r (-b_offset,B_STACK_POINTER); -#endif } static int local_register_allocation_and_adjust_a_stack_pointer (int extra_b_offset) @@ -3304,7 +3306,7 @@ static int local_register_allocation_and_adjust_a_stack_pointer (int extra_b_off get_n_virtual_registers (&n_virtual_a_regs,&n_virtual_d_regs,&n_virtual_f_regs); do_register_allocation (last_instruction,last_block,n_virtual_a_regs,n_virtual_d_regs,n_virtual_f_regs,0,0); - return stack_access_and_adjust_a_stack_pointer (extra_b_offset); + return stack_access_and_adjust_a_stack_pointer (extra_b_offset,0); } void adjust_stack_pointers (void) @@ -3313,7 +3315,7 @@ void adjust_stack_pointers (void) get_n_virtual_registers (&n_virtual_a_regs,&n_virtual_d_regs,&n_virtual_f_regs); do_register_allocation (last_instruction,last_block,n_virtual_a_regs,n_virtual_d_regs,n_virtual_f_regs,0,0); - stack_access(); + stack_access (0); } int adjust_stack_pointers_without_altering_condition_codes (int float_condition,int condition) @@ -3322,7 +3324,7 @@ int adjust_stack_pointers_without_altering_condition_codes (int float_condition, get_n_virtual_registers (&n_virtual_a_regs,&n_virtual_d_regs,&n_virtual_f_regs); condition_on_stack=do_register_allocation (last_instruction,last_block,n_virtual_a_regs,n_virtual_d_regs,n_virtual_f_regs,1+float_condition,condition); - stack_access(); + stack_access (1); return condition_on_stack; } @@ -3755,14 +3757,10 @@ static void generate_code_for_basic_block (struct block_graph *next_block_graph) } #else if (b_offset!=0) -# ifdef I486 - i_lea_id_r (b_offset,B_STACK_POINTER,B_STACK_POINTER); -# else if (b_offset<0) i_sub_i_r (-b_offset,B_STACK_POINTER); else i_add_i_r (b_offset,B_STACK_POINTER); -# endif # if ! defined (sparc) { @@ -4187,14 +4185,10 @@ void end_basic_block_with_registers (int n_a_parameters,int n_b_parameters,ULONG b_offset=end_basic_block_with_registers_and_return_b_stack_offset (n_a_parameters,n_b_parameters,vector,N_ADDRESS_PARAMETER_REGISTERS); if (b_offset!=0) -#ifdef I486 - i_lea_id_r (b_offset,B_STACK_POINTER,B_STACK_POINTER); -#else if (b_offset>0) i_add_i_r (b_offset,B_STACK_POINTER); else i_sub_i_r (-b_offset,B_STACK_POINTER); -#endif } void end_stack_elements (int n_a_parameters,int n_b_parameters,ULONG vector[]) |