b11293c212
The previous change missed updating one of the increments and
one of the MemOps. Add a test case for all vector lengths.
Cc: qemu-stable@nongnu.org
Fixes: e6dd5e782b ("target/arm: Use tcg_gen_qemu_{ld, st}_i128 in gen_sve_{ld, st}r")
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Message-id: 20231031143215.29764-1-richard.henderson@linaro.org
[PMM: fixed checkpatch nit]
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
50 lines
1008 B
C
50 lines
1008 B
C
#include <stdio.h>
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#include <sys/prctl.h>
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#define N (256 + 16)
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static int __attribute__((noinline)) test(int vl)
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{
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unsigned char buf[N];
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int err = 0;
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for (int i = 0; i < N; ++i) {
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buf[i] = (unsigned char)i;
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}
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asm volatile (
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"mov z0.b, #255\n\t"
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"str z0, %0"
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: : "m" (buf) : "z0", "memory");
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for (int i = 0; i < vl; ++i) {
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if (buf[i] != 0xff) {
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fprintf(stderr, "vl %d, index %d, expected 255, got %d\n",
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vl, i, buf[i]);
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err = 1;
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}
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}
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for (int i = vl; i < N; ++i) {
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if (buf[i] != (unsigned char)i) {
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fprintf(stderr, "vl %d, index %d, expected %d, got %d\n",
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vl, i, (unsigned char)i, buf[i]);
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err = 1;
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}
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}
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return err;
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}
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int main()
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{
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int err = 0;
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for (int i = 16; i <= 256; i += 16) {
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if (prctl(PR_SVE_SET_VL, i, 0, 0, 0, 0) == i) {
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err |= test(i);
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}
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}
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return err;
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}
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