egcs and crazy optimizations

Steve Snyder (
Wed, 02 Dec 1998 08:37:27 -0500 (EST)

>Does anyone know if the new egcs-1.1.1 fixes the old problem of compiling
>the kernel with crazy optimizations?

My experience with kernels v2.1.1xx and pgcc v1.1a (a derivative of egcs
v1.1a) is that "-O6 -fno-risc-const" works great on Intel P5/P6 kernels.

The "fno-risc-const" switch fixes an optimization problem which (I've read)
is caused by the small register set of the 80x86 CPUs.


*** Steve Snyder ***

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