safe fx ops benchmark

diff --git a/c-platform.scm b/c-platform.scm
index bf034ff1..98d9440f 100644
--- a/c-platform.scm
+++ b/c-platform.scm
@@ -990,15 +990,27 @@
 		      '("C_i_setslot") ) )
 		callargs) ) ) ) ) )
 
-(rewrite 'chicken.fixnum#fx+ 17 2 "C_fixnum_plus" "C_u_fixnum_plus")
-(rewrite 'chicken.fixnum#fx- 17 2 "C_fixnum_difference" "C_u_fixnum_difference")
-(rewrite 'chicken.fixnum#fxshl 17 2 "C_fixnum_shift_left")
-(rewrite 'chicken.fixnum#fxshr 17 2 "C_fixnum_shift_right")
-(rewrite 'chicken.fixnum#fxneg 17 1 "C_fixnum_negate" "C_u_fixnum_negate")
-(rewrite 'chicken.fixnum#fxxor 17 2 "C_fixnum_xor" "C_fixnum_xor")
-(rewrite 'chicken.fixnum#fxand 17 2 "C_fixnum_and" "C_u_fixnum_and")
-(rewrite 'chicken.fixnum#fxior 17 2 "C_fixnum_or" "C_u_fixnum_or")
-(rewrite 'chicken.fixnum#fx/ 17 2 "C_fixnum_divide" "C_u_fixnum_divide")
+(rewrite 'chicken.fixnum#fx= 17 2 "C_i_s_fixnum_equalp" "C_eqp")
+(rewrite 'chicken.fixnum#fx+ 17 2 "C_i_s_fixnum_plus" "C_u_fixnum_plus")
+(rewrite 'chicken.fixnum#fx- 17 2 "C_i_s_fixnum_difference" "C_u_fixnum_difference")
+(rewrite 'chicken.fixnum#fx* 17 2 "C_i_s_fixnum_times" "C_fixnum_times")
+(rewrite 'chicken.fixnum#fx/ 17 2 "C_i_s_fixnum_divide" "C_u_fixnum_divide")
+(rewrite 'chicken.fixnum#fxand 17 2 "C_i_s_fixnum_and" "C_u_fixnum_and")
+(rewrite 'chicken.fixnum#fxior 17 2 "C_i_s_fixnum_or" "C_u_fixnum_or")
+(rewrite 'chicken.fixnum#fxxor 17 2 "C_i_s_fixnum_xor" "C_fixnum_xor")
+(rewrite 'chicken.fixnum#fxnot 17 1 "C_i_s_fixnum_not" "C_fixnum_not")
+(rewrite 'chicken.fixnum#fxshr 17 2 "C_i_s_fixnum_shift_right" "C_fixnum_shift_right")
+(rewrite 'chicken.fixnum#fxshl 17 2 "C_i_s_fixnum_shift_left" "C_fixnum_shift_left")
+(rewrite 'chicken.fixnum#fxmax 17 2 "C_i_s_fixnum_max" "C_i_fixnum_max")
+(rewrite 'chicken.fixnum#fxmin 17 2 "C_i_s_fixnum_min" "C_i_fixnum_min")
+(rewrite 'chicken.fixnum#fxmod 17 2 "C_i_s_fixnum_modulo" "C_u_fixnum_modulo")
+(rewrite 'chicken.fixnum#fxneg 17 1 "C_i_s_fixnum_negate" "C_u_fixnum_negate")
+(rewrite 'chicken.fixnum#fxodd? 17 1 "C_i_s_fixnum_oddp" "C_i_fixnumoddp")
+(rewrite 'chicken.fixnum#fxeven? 17 1 "C_i_s_fixnum_evenp" "C_i_fixnumevenp")
+(rewrite 'chicken.fixnum#fx< 17 2 "C_i_s_fixnum_lessp" "C_fixnum_lessp")
+(rewrite 'chicken.fixnum#fx> 17 2 "C_i_s_fixnum_greaterp" "C_fixnum_greaterp")
+(rewrite 'chicken.fixnum#fx<= 17 2 "C_i_s_fixnum_less_or_equal_p" "C_fixnum_less_or_equal_p")
+(rewrite 'chicken.fixnum#fx>= 17 2 "C_i_s_fixnum_greater_or_equal_p" "C_fixnum_greater_or_equal_p")
 (rewrite 'chicken.fixnum#fxmod 17 2 "C_fixnum_modulo" "C_u_fixnum_modulo")
 (rewrite 'chicken.fixnum#fxrem 17 2 "C_i_fixnum_remainder_checked")
 
diff --git a/chicken.h b/chicken.h
index 72d5d397..d19a0378 100644
--- a/chicken.h
+++ b/chicken.h
@@ -2003,6 +2003,7 @@ C_fctexport C_word C_fcall C_i_length(C_word lst) C_regparm;
 C_fctexport C_word C_fcall C_u_i_length(C_word lst) C_regparm;
 C_fctexport C_word C_fcall C_i_check_closure_2(C_word x, C_word loc) C_regparm;
 C_fctexport C_word C_fcall C_i_check_fixnum_2(C_word x, C_word loc) C_regparm;
+C_fctexport C_word C_fcall C_i_check_fixnum_2_c(C_word x, char *loc) C_regparm;
 C_fctexport C_word C_fcall C_i_check_exact_2(C_word x, C_word loc) C_regparm; /* DEPRECATED */
 C_fctexport C_word C_fcall C_i_check_inexact_2(C_word x, C_word loc) C_regparm;
 C_fctexport C_word C_fcall C_i_check_number_2(C_word x, C_word loc) C_regparm;
@@ -2913,6 +2914,152 @@ inline static C_word C_fixnum_modulo(C_word x, C_word y)
   }
 }
 
+inline static C_word C_i_s_fixnum_equalp(C_word n1, C_word n2)
+{
+    C_i_check_fixnum_2_c(n1, C_text("fx="));
+    C_i_check_fixnum_2_c(n2, C_text("fx="));
+    return C_eqp(n1, n2);
+}
+
+inline static C_word C_i_s_fixnum_plus(C_word n1, C_word n2)
+{
+    C_i_check_fixnum_2_c(n1, C_text("fx+"));
+    C_i_check_fixnum_2_c(n2, C_text("fx+"));
+    return C_u_fixnum_plus(n1, n2);
+}
+
+inline static C_word C_i_s_fixnum_difference(C_word n1, C_word n2)
+{
+    C_i_check_fixnum_2_c(n1, C_text("fx-"));
+    C_i_check_fixnum_2_c(n2, C_text("fx-"));
+    return C_u_fixnum_difference(n1, n2);
+}
+
+inline static C_word C_i_s_fixnum_times(C_word n1, C_word n2)
+{
+    C_i_check_fixnum_2_c(n1, C_text("fx*"));
+    C_i_check_fixnum_2_c(n2, C_text("fx*"));
+    return C_fixnum_times(n1, n2);
+}
+
+inline static C_word C_i_s_fixnum_divide(C_word n1, C_word n2)
+{
+    C_i_check_fixnum_2_c(n1, C_text("fx/"));
+    C_i_check_fixnum_2_c(n2, C_text("fx/"));
+    if(n2 == C_fix(0)) C_div_by_zero_error(C_text("fx/"));
+    return C_u_fixnum_divide(n1, n2);
+}
+
+inline static C_word C_i_s_fixnum_and(C_word n1, C_word n2)
+{
+    C_i_check_fixnum_2_c(n1, C_text("fxand"));
+    C_i_check_fixnum_2_c(n2, C_text("fxand"));
+    return C_u_fixnum_and(n1, n2);
+}
+
+inline static C_word C_i_s_fixnum_or(C_word n1, C_word n2)
+{
+    C_i_check_fixnum_2_c(n1, C_text("fxior"));
+    C_i_check_fixnum_2_c(n2, C_text("fxior"));
+    return C_u_fixnum_or(n1, n2);
+}
+
+inline static C_word C_i_s_fixnum_xor(C_word n1, C_word n2)
+{
+    C_i_check_fixnum_2_c(n1, C_text("fxxor"));
+    C_i_check_fixnum_2_c(n2, C_text("fxxor"));
+    return C_fixnum_xor(n1, n2);
+}
+
+inline static C_word C_i_s_fixnum_not(C_word n1)
+{
+    C_i_check_fixnum_2_c(n1, C_text("fxnot"));
+    return C_fixnum_not(n1);
+}
+
+inline static C_word C_i_s_fixnum_shift_right(C_word n1, C_word n2)
+{
+    C_i_check_fixnum_2_c(n1, C_text("fxshr"));
+    C_i_check_fixnum_2_c(n2, C_text("fxshr"));
+    return C_fixnum_shift_right(n1, n2);
+}
+
+inline static C_word C_i_s_fixnum_shift_left(C_word n1, C_word n2)
+{
+    C_i_check_fixnum_2_c(n1, C_text("fxshl"));
+    C_i_check_fixnum_2_c(n2, C_text("fxshl"));
+    return C_fixnum_shift_left(n1, n2);
+}
+
+inline static C_word C_i_s_fixnum_max(C_word n1, C_word n2)
+{
+    C_i_check_fixnum_2_c(n1, C_text("fxmax"));
+    C_i_check_fixnum_2_c(n2, C_text("fxmax"));
+    return C_i_fixnum_max(n1, n2);
+}
+
+inline static C_word C_i_s_fixnum_min(C_word n1, C_word n2)
+{
+    C_i_check_fixnum_2_c(n1, C_text("fxmin"));
+    C_i_check_fixnum_2_c(n2, C_text("fxmin"));
+    return C_i_fixnum_min(n1, n2);
+}
+
+inline static C_word C_i_s_fixnum_modulo(C_word n1, C_word n2)
+{
+    C_i_check_fixnum_2_c(n1, C_text("fxmod"));
+    C_i_check_fixnum_2_c(n2, C_text("fxmod"));
+    if(n2 == C_fix(0)) C_div_by_zero_error(C_text("fxmod"));
+    return C_u_fixnum_modulo(n1, n2);
+}
+
+inline static C_word C_i_s_fixnum_negate(C_word n1)
+{
+    C_i_check_fixnum_2_c(n1, C_text("fxneg"));
+    return C_u_fixnum_negate(n1);
+}
+
+inline static C_word C_i_s_fixnum_oddp(C_word n1)
+{
+    C_i_check_fixnum_2_c(n1, C_text("fxodd?"));
+    return C_i_fixnumoddp(n1);
+}
+
+inline static C_word C_i_s_fixnum_evenp(C_word n1)
+{
+    C_i_check_fixnum_2_c(n1, C_text("fxeven?"));
+    return C_i_fixnumevenp(n1);
+}
+
+inline static C_word C_i_s_fixnum_lessp(C_word n1, C_word n2)
+{
+    C_i_check_fixnum_2_c(n1, C_text("fx<"));
+    C_i_check_fixnum_2_c(n2, C_text("fx<"));
+    return C_fixnum_lessp(n1, n2);
+}
+
+inline static C_word C_i_s_fixnum_greaterp(C_word n1, C_word n2)
+{
+    C_i_check_fixnum_2_c(n1, C_text("fx>"));
+    C_i_check_fixnum_2_c(n2, C_text("fx>"));
+    return C_fixnum_greaterp(n1, n2);
+}
+
+inline static C_word C_i_s_fixnum_less_or_equal_p(C_word n1, C_word n2)
+{
+    C_i_check_fixnum_2_c(n1, C_text("fx<="));
+    C_i_check_fixnum_2_c(n2, C_text("fx<="));
+    return C_fixnum_less_or_equal_p(n1, n2);
+}
+
+inline static C_word C_i_s_fixnum_greater_or_equal_p(C_word n1, C_word n2)
+{
+    C_i_check_fixnum_2_c(n1, C_text("fx>="));
+    C_i_check_fixnum_2_c(n2, C_text("fx>="));
+    return C_fixnum_greater_or_equal_p(n1, n2);
+}
+
+
 /* XXX: Naming convention is inconsistent!  There's C_fixnum_divide()
  * but also C_a_i_flonum_quotient_checked()
  */
diff --git a/library.scm b/library.scm
index bc0ef42c..2a301ab7 100644
--- a/library.scm
+++ b/library.scm
@@ -969,29 +969,29 @@ EOF
 (define fixnum-bits (foreign-value "(C_WORD_SIZE - 1)" int))
 (define fixnum-precision (foreign-value "(C_WORD_SIZE - (1 + 1))" int))
 
-(define (fx+ x y) (##core#inline "C_fixnum_plus" x y))
-(define (fx- x y) (##core#inline "C_fixnum_difference" x y))
-(define (fx* x y) (##core#inline "C_fixnum_times" x y))
-(define (fx= x y) (eq? x y))
-(define (fx> x y) (##core#inline "C_fixnum_greaterp" x y))
-(define (fx< x y) (##core#inline "C_fixnum_lessp" x y))
-(define (fx>= x y) (##core#inline "C_fixnum_greater_or_equal_p" x y))
-(define (fx<= x y) (##core#inline "C_fixnum_less_or_equal_p" x y))
-(define (fxmin x y) (##core#inline "C_i_fixnum_min" x y))
-(define (fxmax x y) (##core#inline "C_i_fixnum_max" x y))
-(define (fxneg x) (##core#inline "C_fixnum_negate" x))
-(define (fxand x y) (##core#inline "C_fixnum_and" x y))
-(define (fxior x y) (##core#inline "C_fixnum_or" x y))
-(define (fxxor x y) (##core#inline "C_fixnum_xor" x y))
-(define (fxnot x) (##core#inline "C_fixnum_not" x))
-(define (fxshl x y) (##core#inline "C_fixnum_shift_left" x y))
-(define (fxshr x y) (##core#inline "C_fixnum_shift_right" x y))
-(define (fxodd? x) (##core#inline "C_i_fixnumoddp" x))
-(define (fxeven? x) (##core#inline "C_i_fixnumevenp" x))
+(define (fx= x y) (##core#inline C_i_s_fixnum_equalp x y))
+(define (fx+ x y) (##core#inline C_i_s_fixnum_plus x y))
+(define (fx- x y) (##core#inline C_i_s_fixnum_difference x y))
+(define (fx* x y) (##core#inline C_i_s_fixnum_times x y))
+(define (fx/ x y) (##core#inline C_i_s_fixnum_divide x y))
+(define (fxand x y) (##core#inline C_i_s_fixnum_and x y))
+(define (fxior x y) (##core#inline C_i_s_fixnum_or x y))
+(define (fxxor x y) (##core#inline C_i_s_fixnum_xor x y))
+(define (fxnot x) (##core#inline C_i_s_fixnum_not x))
+(define (fxshr x y) (##core#inline C_i_s_fixnum_shift_right x y))
+(define (fxshl x y) (##core#inline C_i_s_fixnum_shift_left x y))
+(define (fxmax x y) (##core#inline C_i_s_fixnum_max x y))
+(define (fxmin x y) (##core#inline C_i_s_fixnum_min x y))
+(define (fxmod x y) (##core#inline C_i_s_fixnum_modulo x y))
+(define (fxneg x) (##core#inline C_i_s_fixnum_negate x))
+(define (fxodd? x) (##core#inline C_i_s_fixnum_oddp x))
+(define (fxeven? x) (##core#inline C_i_s_fixnum_evenp x))
+(define (fx< x y) (##core#inline C_i_s_fixnum_lessp x y))
+(define (fx> x y) (##core#inline C_i_s_fixnum_greaterp x y))
+(define (fx<= x y) (##core#inline C_i_s_fixnum_less_or_equal_p x y))
+(define (fx>= x y) (##core#inline C_i_s_fixnum_greater_or_equal_p x y))
 (define (fxlen x) (##core#inline "C_i_fixnum_length" x))
-(define (fx/ x y) (##core#inline "C_fixnum_divide" x y) )
 (define (fxgcd x y) (##core#inline "C_i_fixnum_gcd" x y))
-(define (fxmod x y) (##core#inline "C_fixnum_modulo" x y) )
 (define (fxrem x y) (##core#inline "C_i_fixnum_remainder_checked" x y) )
 
 ;; Overflow-detecting versions of some of the above
diff --git a/runtime.c b/runtime.c
index 5e1bb9f1..a96c1232 100644
--- a/runtime.c
+++ b/runtime.c
@@ -7292,6 +7292,14 @@ C_regparm C_word C_fcall C_i_check_fixnum_2(C_word x, C_word loc)
   return C_SCHEME_UNDEFINED;
 }
 
+C_regparm C_word C_fcall C_i_check_fixnum_2_c(C_word x, char *loc)
+{
+  if(C_unlikely(!(x & C_FIXNUM_BIT))) {
+    error_location = loc;
+    barf(C_BAD_ARGUMENT_TYPE_NO_FIXNUM_ERROR, NULL, x);
+  }
+}
+
 /* DEPRECATED */
 C_regparm C_word C_fcall C_i_check_exact_2(C_word x, C_word loc)
 {
diff --git a/types.db b/types.db
index 06514b28..ad0ef145 100644
--- a/types.db
+++ b/types.db
@@ -1270,29 +1270,72 @@
 (chicken.fixnum#fixnum-precision fixnum)
 
 ;;XXX These aren't enforcing, and aren't foldable due to 32/64-bit issues
-(chicken.fixnum#fx- (#(procedure #:clean) chicken.fixnum#fx- (fixnum fixnum) fixnum))
-(chicken.fixnum#fx* (#(procedure #:clean) chicken.fixnum#fx* (fixnum fixnum) fixnum))
-(chicken.fixnum#fx/ (#(procedure #:clean) chicken.fixnum#fx/ (fixnum fixnum) fixnum))
+(chicken.fixnum#fx=
+  (#(procedure #:pure #:enforce) chicken.fixnum#fx= (fixnum fixnum) boolean)
+  ((fixnum fixnum) (##core#inline "C_eqp" #(1) #(2))))
+(chicken.fixnum#fx+
+  (#(procedure #:pure #:enforce) chicken.fixnum#fx+ (fixnum fixnum) fixnum)
+  ((fixnum fixnum) (##core#inline "C_u_fixnum_plus" #(1) #(2))))
+(chicken.fixnum#fx-
+  (#(procedure #:pure #:enforce) chicken.fixnum#fx- (fixnum fixnum) fixnum)
+  ((fixnum fixnum) (##core#inline "C_u_fixnum_difference" #(1) #(2))))
+(chicken.fixnum#fx*
+  (#(procedure #:pure #:enforce) chicken.fixnum#fx* (fixnum fixnum) fixnum)
+  ((fixnum fixnum) (##core#inline "C_fixnum_times" #(1) #(2))))
+(chicken.fixnum#fx/
+  (#(procedure #:pure #:enforce) chicken.fixnum#fx/ (fixnum fixnum) fixnum)
+  ((fixnum fixnum) (##core#inline "C_u_fixnum_divide" #(1) #(2))))
+(chicken.fixnum#fxand
+  (#(procedure #:pure #:enforce) chicken.fixnum#fxand (fixnum fixnum) fixnum)
+  ((fixnum fixnum) (##core#inline "C_u_fixnum_and" #(1) #(2))))
+(chicken.fixnum#fxior
+  (#(procedure #:pure #:enforce) chicken.fixnum#fxior (fixnum fixnum) fixnum)
+  ((fixnum fixnum) (##core#inline "C_u_fixnum_or" #(1) #(2))))
+(chicken.fixnum#fxxor
+  (#(procedure #:pure #:enforce) chicken.fixnum#fxxor (fixnum fixnum) fixnum)
+  ((fixnum fixnum) (##core#inline "C_fixnum_xor" #(1) #(2))))
+(chicken.fixnum#fxnot
+  (#(procedure #:pure #:enforce) chicken.fixnum#fxnot (fixnum) fixnum)
+  ((fixnum) (##core#inline "C_fixnum_not" #(1))))
+(chicken.fixnum#fxshr
+  (#(procedure #:pure #:enforce) chicken.fixnum#fxshr (fixnum fixnum) fixnum)
+  ((fixnum fixnum) (##core#inline "C_fixnum_shift_right" #(1) #(2))))
+(chicken.fixnum#fxshl
+  (#(procedure #:pure #:enforce) chicken.fixnum#fxshl (fixnum fixnum) fixnum)
+  ((fixnum fixnum) (##core#inline "C_fixnum_shift_left" #(1) #(2))))
+(chicken.fixnum#fxmax
+  (#(procedure #:pure #:enforce) chicken.fixnum#fxmax (fixnum fixnum) fixnum)
+  ((fixnum fixnum) (##core#inline "C_i_fixnum_max" #(1) #(2))))
+(chicken.fixnum#fxmin
+  (#(procedure #:pure #:enforce) chicken.fixnum#fxmin (fixnum fixnum) fixnum)
+  ((fixnum fixnum) (##core#inline "C_i_fixnum_min" #(1) #(2))))
+(chicken.fixnum#fxmod
+  (#(procedure #:pure #:enforce) chicken.fixnum#fxmod (fixnum fixnum) fixnum)
+  ((fixnum fixnum) (##core#inline "C_u_fixnum_modulo" #(1) #(2))))
+(chicken.fixnum#fxneg
+  (#(procedure #:pure #:enforce) chicken.fixnum#fxneg (fixnum) fixnum)
+  ((fixnum) (##core#inline "C_u_fixnum_negate" #(1))))
+(chicken.fixnum#fxodd?
+  (#(procedure #:pure #:enforce) chicken.fixnum#fxodd? (fixnum) boolean)
+  ((fixnum) (##core#inline "C_i_fixnumoddp" #(1))))
+(chicken.fixnum#fxeven?
+  (#(procedure #:pure #:enforce) chicken.fixnum#fxeven? (fixnum) boolean)
+  ((fixnum) (##core#inline "C_i_fixnumevenp" #(1))))
+(chicken.fixnum#fx<
+  (#(procedure #:pure #:enforce) chicken.fixnum#fx< (fixnum fixnum) boolean)
+  ((fixnum fixnum) (##core#inline "C_fixnum_lessp" #(1) #(2))))
+(chicken.fixnum#fx>
+  (#(procedure #:pure #:enforce) chicken.fixnum#fx> (fixnum fixnum) boolean)
+  ((fixnum fixnum) (##core#inline "C_fixnum_greaterp" #(1) #(2))))
+(chicken.fixnum#fx<=
+  (#(procedure #:pure #:enforce) chicken.fixnum#fx<= (fixnum fixnum) boolean)
+  ((fixnum fixnum) (##core#inline "C_fixnum_less_or_equal_p" #(1) #(2))))
+(chicken.fixnum#fx>=
+  (#(procedure #:pure #:enforce) chicken.fixnum#fx>= (fixnum fixnum) boolean)
+  ((fixnum fixnum) (##core#inline "C_fixnum_greater_or_equal_p" #(1) #(2))))
+
 (chicken.fixnum#fxgcd (#(procedure #:clean) chicken.fixnum#fxgcd (fixnum fixnum) fixnum))
-(chicken.fixnum#fx+ (#(procedure #:clean) chicken.fixnum#fx+ (fixnum fixnum) fixnum))
-(chicken.fixnum#fx< (#(procedure #:clean) chicken.fixnum#fx< (fixnum fixnum) boolean))
-(chicken.fixnum#fx<= (#(procedure #:clean) chicken.fixnum#fx<= (fixnum fixnum) boolean))
-(chicken.fixnum#fx= (#(procedure #:clean) chicken.fixnum#fx= (fixnum fixnum) boolean))
-(chicken.fixnum#fx> (#(procedure #:clean) chicken.fixnum#fx> (fixnum fixnum) boolean))
-(chicken.fixnum#fx>= (#(procedure #:clean) chicken.fixnum#fx>= (fixnum fixnum) boolean))
-(chicken.fixnum#fxand (#(procedure #:clean) chicken.fixnum#fxand (fixnum fixnum) fixnum))
-(chicken.fixnum#fxeven? (#(procedure #:clean) chicken.fixnum#fxeven? (fixnum) boolean))
-(chicken.fixnum#fxior (#(procedure #:clean) chicken.fixnum#fxior (fixnum fixnum) fixnum))
-(chicken.fixnum#fxmax (#(procedure #:clean) chicken.fixnum#fxmax (fixnum fixnum) fixnum))
-(chicken.fixnum#fxmin (#(procedure #:clean) chicken.fixnum#fxmin (fixnum fixnum) fixnum))
-(chicken.fixnum#fxmod (#(procedure #:clean) chicken.fixnum#fxmod (fixnum fixnum) fixnum))
 (chicken.fixnum#fxrem (#(procedure #:clean) chicken.fixnum#fxrem (fixnum fixnum) fixnum))
-(chicken.fixnum#fxneg (#(procedure #:clean) chicken.fixnum#fxneg (fixnum) fixnum))
-(chicken.fixnum#fxnot (#(procedure #:clean) chicken.fixnum#fxnot (fixnum) fixnum))
-(chicken.fixnum#fxodd? (#(procedure #:clean) chicken.fixnum#fxodd? (fixnum) boolean))
-(chicken.fixnum#fxshl (#(procedure #:clean) chicken.fixnum#fxshl (fixnum fixnum) fixnum))
-(chicken.fixnum#fxshr (#(procedure #:clean) chicken.fixnum#fxshr (fixnum fixnum) fixnum))
-(chicken.fixnum#fxxor (#(procedure #:clean) chicken.fixnum#fxxor (fixnum fixnum) fixnum))
 (chicken.fixnum#fxlen (#(procedure #:clean) chicken.fixnum#fxlen (fixnum) fixnum))
 
 (chicken.fixnum#fx+? (#(procedure #:pure) chicken.fixnum#fx+? ((or fixnum false) (or fixnum false)) (or fixnum false)))