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Re: PR/38359 CVS commit: src/gnu/dist/gcc4/gcc/config/m68k
> Modified Files:
> src/gnu/dist/gcc4/gcc/config/m68k: m68k.md
> Log Message:
> Pull the follwoing fix from upstream:
> > * config/m68k/m68k.md (negsf2, negdf2, negxf2): Use
> > -2147483647 - 1 instead of 0x80000000.
> Fixes "internal compiler error: in do_SUBST" on compiling
> floating point ops with -msoft-float or -m68010 on LP64 hosts,
> and may also close PR toolchain/38359. Tested on alpha.
> oh really. nice find.
> i wonder if this means most of sun2 can be built with
> -O again? i had disabled it but my build platform is
> amd64 so i was seeing errors _all over the place_ so i
> disabled it more globally.
I had enabled -O1 with some hacks and confirmed it working on i386,
but later I noticed autobuild amd64 and my alpha failed with
the ICE in do_SUBST, then I've tracked the bug on my alpha and
found the fix ;-)
Now sun2 build on alpha fails in libm by SIGFPE of lint, though..
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