From 59e9ce97759d4279c7542e6443d3cc2af3bd17af Mon Sep 17 00:00:00 2001 From: Matthias Braun Date: Mon, 28 Jul 2008 09:13:52 +0000 Subject: [PATCH] public API for asm constraints [r20726] --- include/libfirm/be.h | 29 ++++++++++++++++++++++++++++- 1 file changed, 28 insertions(+), 1 deletion(-) diff --git a/include/libfirm/be.h b/include/libfirm/be.h index 0d01226fd..4d1a39e11 100644 --- a/include/libfirm/be.h +++ b/include/libfirm/be.h @@ -27,10 +27,25 @@ #define FIRM_BE_MAIN_H #include +#include #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; -- 2.20.1