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diff --git a/none/tests/ppc64/test_isa_2_07_part1.c b/none/tests/ppc64/test_isa_2_07_part1.c
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index 73a563c..201fa88 100644
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--- a/none/tests/ppc64/test_isa_2_07_part1.c
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+++ b/none/tests/ppc64/test_isa_2_07_part1.c
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@@ -406,7 +406,7 @@ static void test_mtvsrwz (void)
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 static void test_mtfprwa (void)
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 {
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-   __asm__ __volatile__ ("mtfprwa %x0,%1" : "=ws" (vec_out) : "r" (r14));
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+   __asm__ __volatile__ ("mtfprwa %x0,%1" : "=d" (vec_out) : "r" (r14));
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 };
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 static test_t tests_move_ops_spe[] = {