tree ad68cbd8bc6df8c0164ef352b344c0e8c27009e6
parent 9c4e4c90ec24652921e31e9551fcaedc26eec86d
author Gustavo Romero <gromero@linux.vnet.ibm.com> 1560806698 -0400
committer Michael Ellerman <mpe@ellerman.id.au> 1560938707 +1000

selftests/powerpc: Fix earlyclobber in tm-vmxcopy

In some cases, compiler can allocate the same register for operand 'res'
and 'vecoutptr', resulting in segfault at 'stxvd2x 40,0,%[vecoutptr]'
because base register will contain 1, yielding a false-positive.

This is because output 'res' must be marked as an earlyclobber operand so
it may not overlap an input operand ('vecoutptr').

Signed-off-by: Gustavo Romero <gromero@linux.vnet.ibm.com>
Reviewed-by: Segher Boessenkool <segher@kernel.crashing.org>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>