extern optab cos_optab; /* Cosine */
extern optab strlen_optab; /* String length */
+/* Tables of patterns for extending one integer mode to another. */
+extern enum insn_code extendtab[MAX_MACHINE_MODE][MAX_MACHINE_MODE][2];
+
+/* Tables of patterns for converting between fixed and floating point. */
+extern enum insn_code fixtab[NUM_MACHINE_MODES][NUM_MACHINE_MODES][2];
+extern enum insn_code fixtrunctab[NUM_MACHINE_MODES][NUM_MACHINE_MODES][2];
+extern enum insn_code floattab[NUM_MACHINE_MODES][NUM_MACHINE_MODES][2];
+
/* Passed to expand_binop and expand_unop to say which options to try to use
if the requested operation can't be open-coded on the requisite mode.
Either OPTAB_LIB or OPTAB_LIB_WIDEN says try using a library call.
extern enum insn_code setcc_gen_code[NUM_RTX_CODE];
+/* This array records the insn_code of insns to perform block moves. */
+extern enum insn_code movstr_optab[NUM_MACHINE_MODES];
+
/* Define functions given in optabs.c. */
/* Expand a binary operation given optab and rtx operands. */