target-arm: A64: fix unallocated test of scalar SQXTUN
The test for the U bit was incorrectly inverted in the scalar case of SQXTUN. This doesn't affect the vector case as the U bit is used to select XTN(2). Reported-by: Hao Liu <hao.liu@arm.com> Signed-off-by: Alex Bennée <alex.bennee@linaro.org> Reviewed-by: Claudio Fontana <claudio.fontana@huawei.com> Reviewed-by: Peter Maydell <peter.maydell@linaro.org> Cc: qemu-stable@nongnu.org Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
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@ -7708,7 +7708,7 @@ static void disas_simd_scalar_two_reg_misc(DisasContext *s, uint32_t insn)
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}
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break;
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case 0x12: /* SQXTUN */
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if (u) {
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if (!u) {
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unallocated_encoding(s);
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return;
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}
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