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| author |   Gustavo Romero <gromero@linux.vnet.ibm.com> | 2019-06-17 17:24:58 -0400 |
|---|---|---|
| committer |   Michael Ellerman <mpe@ellerman.id.au> | 2019-06-19 20:05:07 +1000 |
| commit | 8d0f1e05ab16c4bd628ddaefd20b94ffb36d799c (patch) | |
| tree | ad68cbd8bc6df8c0164ef352b344c0e8c27009e6 /tools/testing/selftests/powerpc/primitives | |
| parent | powerpc/64: mark start_here_multiplatform as __ref (diff) | |
| download | linux-dev-8d0f1e05ab16c4bd628ddaefd20b94ffb36d799c.tar.xz linux-dev-8d0f1e05ab16c4bd628ddaefd20b94ffb36d799c.zip | |
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>
Diffstat (limited to 'tools/testing/selftests/powerpc/primitives')
0 files changed, 0 insertions, 0 deletions