Removing/deprecating -fvia-c

Ian Lynagh igloo at
Sun Feb 14 11:51:38 EST 2010

Hi all,

We are planning to remove the -fvia-c way of compiling code
(unregisterised compilers will continue to compile via C only, but
registerised compilers will only use the native code generator).
We'll probably deprecate -fvia-c in the 6.14 branch, and remove it in

Simon Marlow has recently fixed FP performance for modern x86 chips in
the native code generator in the HEAD. That was the last reason we know
of to prefer via-C to the native code generators. But before we start
the removal process, does anyone know of any other problems with the
native code generators that need to be fixed first?


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