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powerpc/32: Remove unneccessary calculations in load_up_{fpu/altivec}
No need to re-read SPRN_THREAD, we can calculate thread address from current (r2). And remove a reload of value 1 into r4 as r4 is already 1. Signed-off-by: Christophe Leroy <christophe.leroy@csgroup.eu> Signed-off-by: Michael Ellerman <mpe@ellerman.id.au> Link: https://lore.kernel.org/r/c04cce578b97a76a9e69a096698b1d89f721768a.1629276437.git.christophe.leroy@csgroup.eu
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