Thanks! Exactly what I was looking for. On Thu, Sep 14, 2017 at 8:30 PM, Harendra Kumar wrote:

As per the GHC manual, it should be -fno-specialise for disabling all specialization, and -fno-cross-module-specialise for disabling only the specialization of imported INLINABLE functions. Both of these flags are "on" when using -O and -O2.

-harendra

On 15 September 2017 at 07:15, Conal Elliott wrote:

...

Is there a GHC flag for inhibiting the specializer (but not all optimizations)? I'm seeing huge output from the Specialise phase killed at 4GB and growing. The output starts as follows:

Result size of Specialise = {terms: 29,639, types: 10,921,552, coercions: 4,425,185}

Sounds like a lot to me. Is it?. I get this behavior with -O2 and with -O.

-- Conal

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Thanks. I somehow didn't notice that flag. On Fri, Sep 15, 2017 at 3:23 AM, Simon Peyton Jones wrote:

Did you try -fno-specialise?

*From:* Glasgow-haskell-users [mailto:glasgow-haskell-users- bounces@haskell.org] *On Behalf Of *Conal Elliott *Sent:* 15 September 2017 02:45 *To:* glasgow-haskell-users@haskell.org *Subject:* Inhibiting the specialiser?

Is there a GHC flag for inhibiting the specializer (but not all optimizations)? I'm seeing huge output from the Specialise phase killed at 4GB and growing. The output starts as follows:

Result size of Specialise

= {terms: 29,639, types: 10,921,552, coercions: 4,425,185}

Sounds like a lot to me. Is it?. I get this behavior with -O2 and with -O.

-- Conal