diff options
| -rw-r--r-- | compiler/simplCore/SimplMonad.lhs | 15 |
1 files changed, 9 insertions, 6 deletions
diff --git a/compiler/simplCore/SimplMonad.lhs b/compiler/simplCore/SimplMonad.lhs index c48673c4b9..a7615d20f2 100644 --- a/compiler/simplCore/SimplMonad.lhs +++ b/compiler/simplCore/SimplMonad.lhs @@ -67,13 +67,16 @@ initSmpl dflags rules fam_envs us size m (result, _, count) -> (result, count) where -- Compute the max simplifier ticks as - -- pgm-size * k * tick-factor/100 - -- where k is a constant that gives reasonable results - max_ticks = fromInteger ((toInteger size * toInteger (simplTickFactor dflags * k)) + -- pgm-size * magic-multiplier * tick-factor/100 + -- where magic-multiplier is a constant that gives reasonable results + max_ticks = fromInteger ((toInteger size * toInteger (simplTickFactor dflags + * magic_multiplier)) `div` 100) - k = 20 -- MAGIC NUMBER, multiplies the simplTickFactor - -- We can afford to be generous; this is really - -- just checking for loops, and shouldn't usually fire + magic_multiplier = 40 + -- MAGIC NUMBER, multiplies the simplTickFactor + -- We can afford to be generous; this is really + -- just checking for loops, and shouldn't usually fire + -- A figure of 20 was too small: see Trac #553 env = STE { st_flags = dflags, st_rules = rules , st_max_ticks = max_ticks |