backend_params Struct Reference

This structure contains parameters that should be propagated to the libFirm parameter set. More...

#include <be.h>

Data Fields
unsigned	support_inline_asm:1
	If set, the backend supports inline assembly.
unsigned	support_rotl:1
	If set, the backend supports Rotl nodes.
unsigned	byte_order_big_endian:1
	the backend uses big-endian byte ordering if set, else little endian
unsigned	modulo_shift_efficient:1
	whether the architecure can natively handle modulo shift modes.
unsigned	non_modulo_shift_efficient:1
	whether the architecure can natively handle modulo shift modes.
const ir_settings_arch_dep_t *	dep_param
	Settings for architecture dependent optimizations.
arch_allow_ifconv_func	allow_ifconv
	Backend settings for if-conversion.
unsigned	machine_size
	size of machine words.
ir_mode *	mode_float_arithmetic
	some backends like x87 can only do arithmetic in a specific float mode (load/store are still done in the "normal" float/double modes).
ir_type *	type_long_long
	type used for long long or NULL if none available.
ir_type *	type_unsigned_long_long
	type used for unsigned long long or NULL if none available
ir_type *	type_long_double
	type used for long double or NULL if none available.
unsigned	trampoline_size
	Size of the trampoline code.
unsigned	trampoline_align
	Alignment of the trampoline code.
create_trampoline_fkt *	build_trampoline
	If non-zero, build the trampoline.
unsigned	stack_param_align
	Alignment of stack parameters.

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Detailed Description

This structure contains parameters that should be propagated to the libFirm parameter set.

Definition at line 88 of file be.h.

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Field Documentation

arch_allow_ifconv_func backend_params::allow_ifconv

Backend settings for if-conversion.

Definition at line 110 of file be.h.

create_trampoline_fkt* backend_params::build_trampoline

If non-zero, build the trampoline.

Definition at line 144 of file be.h.

unsigned backend_params::byte_order_big_endian

the backend uses big-endian byte ordering if set, else little endian

Definition at line 94 of file be.h.

const ir_settings_arch_dep_t* backend_params::dep_param

Settings for architecture dependent optimizations.

Definition at line 107 of file be.h.

unsigned backend_params::machine_size

size of machine words.

This is usually the size of the general purpose integer registers.

Definition at line 114 of file be.h.

ir_mode* backend_params::mode_float_arithmetic

some backends like x87 can only do arithmetic in a specific float mode (load/store are still done in the "normal" float/double modes).

Definition at line 120 of file be.h.

unsigned backend_params::modulo_shift_efficient

whether the architecure can natively handle modulo shift modes.

If this is true, then you can assume that shifting in modes with module_shift==machine_size (if mode size is <= machine_size) is efficient

Definition at line 99 of file be.h.

unsigned backend_params::non_modulo_shift_efficient

whether the architecure can natively handle modulo shift modes.

If this is true, then you can assume that shifting without modulo shift is efficient

Definition at line 104 of file be.h.

unsigned backend_params::stack_param_align

Alignment of stack parameters.

Definition at line 147 of file be.h.

unsigned backend_params::support_inline_asm

If set, the backend supports inline assembly.

Definition at line 90 of file be.h.

unsigned backend_params::support_rotl

If set, the backend supports Rotl nodes.

Definition at line 92 of file be.h.

unsigned backend_params::trampoline_align

Alignment of the trampoline code.

Definition at line 141 of file be.h.

unsigned backend_params::trampoline_size

Size of the trampoline code.

Definition at line 138 of file be.h.

ir_type* backend_params::type_long_double

type used for long double or NULL if none available.

Definition at line 135 of file be.h.

ir_type* backend_params::type_long_long

type used for long long or NULL if none available.

Definition at line 125 of file be.h.

ir_type* backend_params::type_unsigned_long_long

type used for unsigned long long or NULL if none available

Definition at line 130 of file be.h.

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The documentation for this struct was generated from the following file:

• libfirm/be.h