On powerpc-unknown-linux-gnuspe SPE is used for floating point.  -mcpu=970 disables the usage of the SPU unit and enables the "normal"  floating point unit. This results either in slow code (kernel floating point  emulation) or in SIGILL.
On powerpc-unknown-linux-gnuspe SPE is used for floating point. 
-mcpu=970 disables the usage of the SPU unit and enables the "normal" 
floating
point unit. This results either in slow code (kernel floating point 
emulation)
or in SIGILL.

Closes #1614


git-svn-id: 03f0f1727258f1959b7b485b30a676bafdb78148@17020 0101bb08-14d6-0310-b084-bc0e0c8e3800

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