Declare code_to_optab.

From-SVN: r5061

diff --git a/gcc/expr.h b/gcc/expr.h
index 314ab5218b182df37441fc4c039811d184104a6d..6250247ffe91832202925ed4d87da7045c42203c 100644 (file)
--- a/gcc/expr.h
+++ b/gcc/expr.h
@@ -330,6 +330,9 @@ 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];
 
+/* Contains the optab used for each rtx code.  */
+extern optab code_to_optab[NUM_RTX_CODE + 1];
+
 /* 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.