Exception for Kahan's exp quotient

Math

\[\frac{e^{x} - 1}{x}\]

FPCore

(FPCore (x) :precision binary64 (/ (- (exp x) 1.0) x))

C

double code(double x) {
	return (exp(x) - 1.0) / x;
}

Reproduce

Please include this information when filing a bug report:

herbie shell --seed 2021067 
(FPCore (x)
  :name "Kahan's exp quotient"
  :precision binary64

  :herbie-target
  (if (and (< x 1.0) (> x -1.0)) (/ (- (exp x) 1.0) (log (exp x))) (/ (- (exp x) 1.0) x))

  (/ (- (exp x) 1.0) x))

Backtrace

simplify-batch: contract violation expected keyword argument #:precompute in: (-> (listof (or/c (listof any/c) symbol? value? real?)) #:precompute boolean? #:rules (listof rule?) (listof (listof (or/c (listof any/c) symbol? value? real?)))) contract from: (function simplify-batch) blaming: <pkgs>/herbie/core/simplify.rkt (assuming the contract is correct) at: <pkgs>/herbie/core/simplify.rkt:68.18		L	C
raise-blame-error	/opt/racket-7.9/collects/racket/contract/private/blame.rkt	347	0
for-loop	/opt/racket-7.9/collects/racket/contract/private/arrow-higher-order.rkt	508	13
kwd-checker	/opt/racket-7.9/collects/racket/contract/private/arrow-higher-order.rkt	496	11
connected-components	/data/pavpan/nightlies/herbie/egg-interface-fixes/src/symmetry.rkt	17	0
run-improve	/data/pavpan/nightlies/herbie/egg-interface-fixes/src/mainloop.rkt	387	0
(unnamed)	/data/pavpan/nightlies/herbie/egg-interface-fixes/src/sandbox.rkt	54	6
run	/opt/racket-7.9/share/pkgs/profile-lib/main.rkt	39	2
profile-thunk	/opt/racket-7.9/share/pkgs/profile-lib/main.rkt	9	0
(unnamed)	/opt/racket-7.9/collects/racket/engine.rkt	42	24