remove unused get_reference_mode_signed_eq()

include/libfirm/irmode.h

@@ -389,16 +389,6 @@ FIRM_API int mode_overflow_on_unary_Minus(const ir_mode *mode);
  */
 FIRM_API int mode_wrap_around(const ir_mode *mode);
 
-/**
- * Returns the signed integer equivalent mode for an reference mode.
- */
-FIRM_API ir_mode *get_reference_mode_signed_eq(const ir_mode *mode);
-
-/**
- * Sets the signed integer equivalent mode for an reference mode.
- */
-FIRM_API void set_reference_mode_signed_eq(ir_mode *ref_mode, ir_mode *int_mode);
-
 /**
  * Returns the unsigned integer equivalent mode for an reference mode.
  */

ir/ir/irio.c

@@ -970,7 +970,6 @@ static void write_mode(write_env_t *env, ir_mode *mode)
 		write_unsigned(env, get_mode_size_bits(mode));
 		write_unsigned(env, get_mode_modulo_shift(mode));
 
-		write_mode_ref(env, get_reference_mode_signed_eq(mode));
 		write_mode_ref(env, get_reference_mode_unsigned_eq(mode));
 		write_int(env, (mode == mode_P ? 1 : 0));
 	} else if (mode_is_float(mode)) {
@@ -2170,7 +2169,6 @@ static void read_modes(read_env_t *env)
 			int size = read_long(env);
 			unsigned modulo_shift = read_long(env);
 			ir_mode *mode = new_reference_mode(name, arith, size, modulo_shift);
-			set_reference_mode_signed_eq(mode, read_mode_ref(env));
 			set_reference_mode_unsigned_eq(mode, read_mode_ref(env));
 			int is_mode_P = read_int(env);
 			if (is_mode_P) {

ir/ir/irmode.c

@@ -501,19 +501,6 @@ int values_in_mode(const ir_mode *sm, const ir_mode *lm)
 	return false;
 }
 
-ir_mode *get_reference_mode_signed_eq(const ir_mode *mode)
-{
-	assert(mode_is_reference(mode));
-	return mode->eq_signed;
-}
-
-void set_reference_mode_signed_eq(ir_mode *ref_mode, ir_mode *int_mode)
-{
-	assert(mode_is_reference(ref_mode));
-	assert(mode_is_int(int_mode));
-	ref_mode->eq_signed = int_mode;
-}
-
 ir_mode *get_reference_mode_unsigned_eq(const ir_mode *mode)
 {
 	assert(mode_is_reference(mode));
@@ -555,7 +542,6 @@ void init_mode(void)
 	mode_Lu  = new_int_mode("Lu",  irma_twos_complement, 64,  0, 64);
 
 	mode_P   = new_reference_mode("P", irma_twos_complement, 32, 32);
-	set_reference_mode_signed_eq(mode_P, mode_Is);
 	set_reference_mode_unsigned_eq(mode_P, mode_Iu);
 
 	/* set the machine specific modes to the predefined ones */

ir/ir/irtypes.h

@@ -165,7 +165,6 @@ struct ir_mode {
 	ir_tarval         *all_one;     /**< the value ~0 */
 	ir_tarval         *infinity;    /**< the infinity value */
 	ir_tarval         *nan;         /** the not a number (NaN) value */
-	ir_mode           *eq_signed;   /**< For pointer modes, the equivalent signed integer one. */
 	ir_mode           *eq_unsigned; /**< For pointer modes, the equivalent unsigned integer one. */
 };