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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: e6dd5e7 ("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>
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Original file line number | Diff line number | Diff line change |
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#include <stdio.h> | ||
#include <sys/prctl.h> | ||
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#define N (256 + 16) | ||
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static int __attribute__((noinline)) test(int vl) | ||
{ | ||
unsigned char buf[N]; | ||
int err = 0; | ||
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for (int i = 0; i < N; ++i) { | ||
buf[i] = (unsigned char)i; | ||
} | ||
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asm volatile ( | ||
"mov z0.b, #255\n\t" | ||
"str z0, %0" | ||
: : "m" (buf) : "z0", "memory"); | ||
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for (int i = 0; i < vl; ++i) { | ||
if (buf[i] != 0xff) { | ||
fprintf(stderr, "vl %d, index %d, expected 255, got %d\n", | ||
vl, i, buf[i]); | ||
err = 1; | ||
} | ||
} | ||
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for (int i = vl; i < N; ++i) { | ||
if (buf[i] != (unsigned char)i) { | ||
fprintf(stderr, "vl %d, index %d, expected %d, got %d\n", | ||
vl, i, (unsigned char)i, buf[i]); | ||
err = 1; | ||
} | ||
} | ||
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return err; | ||
} | ||
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int main() | ||
{ | ||
int err = 0; | ||
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for (int i = 16; i <= 256; i += 16) { | ||
if (prctl(PR_SVE_SET_VL, i, 0, 0, 0, 0) == i) { | ||
err |= test(i); | ||
} | ||
} | ||
return err; | ||
} |