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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>
This commit is contained in:
Alex Bennée 2014-04-16 12:29:39 +01:00 committed by Peter Maydell
parent 33bbd75a7c
commit e44a90c596
1 changed files with 1 additions and 1 deletions
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2
target-arm/translate-a64.c
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@ -7708,7 +7708,7 @@ static void disas_simd_scalar_two_reg_misc(DisasContext *s, uint32_t insn)
}
break;
case 0x12: /* SQXTUN */
if (u) {
if (!u) {
unallocated_encoding(s);
return;
}