[mercury-users] Re: segfault in hlc.gc when optimise-constructor-last-call is enabled

[Michael Day]

Hi,

If the attached bad.m is compiled with rotd-2011-02-21 in hlc.gc with 
optimise-constructor-last-call enabled like this:

mmc --grade hlc.gc --make bad --optimise-constructor-last-call

Then the resulting executable will segfault:

$ ./bad
num_float(
*** Mercury runtime: caught segmentation violation ***
cause: address not mapped to object
address involved: (nil)

Any assistance would be very gratefully appreciated, as we do take a 
performance hit if we have to disable this optimisation.

Best regards,

Michael

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