Commit 59e9ce97 authored by Matthias Braun's avatar Matthias Braun
Browse files

public API for asm constraints

[r20726]
parent 3f0b6e82
......@@ -27,10 +27,25 @@
#define FIRM_BE_MAIN_H
#include <stdio.h>
#include <stdbool.h>
#include "irarch.h"
#include "archop.h"
#include "lowering.h"
typedef enum {
ASM_CONSTRAINT_FLAG_SUPPORTS_REGISTER = 0x0001,
ASM_CONSTRAINT_FLAG_SUPPORTS_MEMOP = 0x0002,
ASM_CONSTRAINT_FLAG_SUPPORTS_IMMEDIATE = 0x0004,
ASM_CONSTRAINT_FLAG_NO_SUPPORT = 0x0008,
ASM_CONSTRAINT_FLAG_MODIFIER_WRITE = 0x0010,
ASM_CONSTRAINT_FLAG_MODIFIER_NO_WRITE = 0x0020,
ASM_CONSTRAINT_FLAG_MODIFIER_READ = 0x0040,
ASM_CONSTRAINT_FLAG_MODIFIER_NO_READ = 0x0080,
ASM_CONSTRAINT_FLAG_MODIFIER_EARLYCLOBBER = 0x0100,
ASM_CONSTRAINT_FLAG_MODIFIER_COMMUTATIVE = 0x0200,
ASM_CONSTRAINT_FLAG_INVALID = 0x8000
} asm_constraint_flags_t;
/**
* This structure contains parameters that should be
* propagated to the libFirm parameter set.
......@@ -58,7 +73,8 @@ typedef struct backend_params {
/** Backend settings for if-conversion. */
const ir_settings_if_conv_t *if_conv_info;
/** The immediate floating point mode. Temporaries are calculated using this mode. */
/** The immediate floating point mode. Temporaries are calculated using
* this mode. */
ir_mode *imm_fp_mode;
} backend_params;
......@@ -85,6 +101,17 @@ const backend_params *be_get_backend_param(void);
*/
void be_main(FILE *output, const char *compilation_unit_name);
/**
* parse assembler constraint strings and returns flags (so the frontend knows
* which operands are inputs/outputs and wether memory is required)
*/
asm_constraint_flags_t parse_asm_constraints(const char *constraint);
/**
* tests wether a string is a valid clobber in an asm instruction
*/
bool is_valid_clobber(const char *clobber);
typedef struct be_main_env_t be_main_env_t;
typedef struct be_options_t be_options_t;
......
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