diff options
Diffstat (limited to 'gcc/gensupport.h')
-rw-r--r-- | gcc/gensupport.h | 86 |
1 files changed, 86 insertions, 0 deletions
diff --git a/gcc/gensupport.h b/gcc/gensupport.h index 0199e39..456efa0 100644 --- a/gcc/gensupport.h +++ b/gcc/gensupport.h @@ -39,6 +39,91 @@ struct md_rtx_info { int index; }; +#define OPTAB_CL(name, pat, c, b, l) name, +#define OPTAB_CX(name, pat) +#define OPTAB_CD(name, pat) name, +#define OPTAB_NL(name, pat, c, b, s, l) name, +#define OPTAB_NC(name, pat, c) name, +#define OPTAB_NX(name, pat) +#define OPTAB_VL(name, pat, c, b, s, l) name, +#define OPTAB_VC(name, pat, c) name, +#define OPTAB_VX(name, pat) +#define OPTAB_DC(name, pat, c) name, +#define OPTAB_D(name, pat) name, + +/* Enumerates all optabs. */ +typedef enum optab_tag { + unknown_optab, +#include "optabs.def" + NUM_OPTABS +} optab; + +#undef OPTAB_CL +#undef OPTAB_CX +#undef OPTAB_CD +#undef OPTAB_NL +#undef OPTAB_NC +#undef OPTAB_NX +#undef OPTAB_VL +#undef OPTAB_VC +#undef OPTAB_VX +#undef OPTAB_DC +#undef OPTAB_D + +/* Describes one entry in optabs.def. */ +struct optab_def +{ + /* The name of the optab (e.g. "add_optab"). */ + const char *name; + + /* The pattern that matching define_expands and define_insns have. + See the comment at the head of optabs.def for details. */ + const char *pattern; + + /* The initializers (in the form of C code) for the libcall_basename, + libcall_suffix and libcall_gen fields of (convert_)optab_libcall_d. */ + const char *base; + const char *suffix; + const char *libcall; + + /* The optab's enum value. */ + unsigned int op; + + /* The value returned by optab_to_code (OP). */ + enum rtx_code fcode; + + /* CODE if code_to_optab (CODE) should return OP, otherwise UNKNOWN. */ + enum rtx_code rcode; + + /* 1: conversion optabs with libcall data, + 2: conversion optabs without libcall data, + 3: non-conversion optabs with libcall data ("normal" and "overflow" + optabs in the optabs.def comment) + 4: non-conversion optabs without libcall data ("direct" optabs). */ + unsigned int kind; +}; + +extern optab_def optabs[]; +extern unsigned int num_optabs; + +/* Information about an instruction name that matches an optab pattern. */ +struct optab_pattern +{ + /* The name of the instruction. */ + const char *name; + + /* The matching optab. */ + unsigned int op; + + /* The optab modes. M2 is only significant for conversion optabs; + it is zero otherwise. */ + unsigned int m1, m2; + + /* An index that provides a lexicographical sort of (OP, M2, M1). + Used by genopinit.c. */ + unsigned int sort_num; +}; + extern rtx add_implicit_parallel (rtvec); extern bool init_rtx_reader_args_cb (int, char **, bool (*)(const char *)); extern bool init_rtx_reader_args (int, char **); @@ -135,5 +220,6 @@ extern void compute_test_codes (rtx, file_location, char *); extern file_location get_file_location (rtx); extern const char *get_emit_function (rtx); extern bool needs_barrier_p (rtx); +extern bool find_optab (optab_pattern *, const char *); #endif /* GCC_GENSUPPORT_H */ |