avoid unnecessary #define in header

include/libfirm/lowering.h

@@ -272,8 +272,19 @@ FIRM_API int i_mapper_pow(ir_node *call, void *ctx);
  */
 FIRM_API int i_mapper_exp(ir_node *call, void *ctx);
 
-#define i_mapper_exp2   i_mapper_exp
-#define i_mapper_exp10  i_mapper_exp
+/**
+ * A mapper for the floating point exp2(a): floattype exp2(floattype a);
+ *
+ * @return 1 if the exp call was removed, 0 else.
+ */
+FIRM_API int i_mapper_exp2(ir_node *call, void *ctx);
+
+/**
+ * A mapper for the floating point exp10(a): floattype exp10(floattype a);
+ *
+ * @return 1 if the exp call was removed, 0 else.
+ */
+FIRM_API int i_mapper_exp10(ir_node *call, void *ctx);
 
 /**
  * A mapper for the floating point log(a): floattype log(floattype a);
@@ -282,8 +293,19 @@ FIRM_API int i_mapper_exp(ir_node *call, void *ctx);
  */
 FIRM_API int i_mapper_log(ir_node *call, void *ctx);
 
-#define i_mapper_log2   i_mapper_log
-#define i_mapper_log10  i_mapper_log
+/**
+ * A mapper for the floating point log(a): floattype log(floattype a);
+ *
+ * @return 1 if the log call was removed, 0 else.
+ */
+FIRM_API int i_mapper_log2(ir_node *call, void *ctx);
+
+/**
+ * A mapper for the floating point log(a): floattype log(floattype a);
+ *
+ * @return 1 if the log call was removed, 0 else.
+ */
+FIRM_API int i_mapper_log10(ir_node *call, void *ctx);
 
 /**
  * A mapper for the floating point sin(a): floattype sin(floattype a);

ir/lower/lower_intrinsics.c

@@ -430,6 +430,16 @@ int i_mapper_exp(ir_node *call, void *ctx)
 	return 0;
 }
 
+int i_mapper_exp2(ir_node *call, void *ctx)
+{
+	return i_mapper_exp(call, ctx);
+}
+
+int i_mapper_exp10(ir_node *call, void *ctx)
+{
+	return i_mapper_exp(call, ctx);
+}
+
 /**
  * A mapper for mapping f(0.0) to 0.0.
  */
@@ -525,6 +535,18 @@ int i_mapper_log(ir_node *call, void *ctx)
 	return i_mapper_one_to_zero(call, ctx, FS_OPT_RTS_LOG);
 }
 
+int i_mapper_log2(ir_node *call, void *ctx)
+{
+	/* log2(1.0) = 0.0 */
+	return i_mapper_one_to_zero(call, ctx, FS_OPT_RTS_LOG);
+}
+
+int i_mapper_log10(ir_node *call, void *ctx)
+{
+	/* log10(1.0) = 0.0 */
+	return i_mapper_one_to_zero(call, ctx, FS_OPT_RTS_LOG);
+}
+
 int i_mapper_sin(ir_node *call, void *ctx)
 {
 	/* sin(0.0) = 0.0 */