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decodetree: Properly diagnose fields overflowing an insn

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Previously this would result in an exception for shifting
the field mask by a negative number.

Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
This commit is contained in:
Richard Henderson 2019-03-05 15:34:41 -08:00
parent 71ecf79bf4
commit 2decfc9558
5 changed files with 22 additions and 0 deletions
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tests/decode/err_width2.decode Normal file
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# This work is licensed under the terms of the GNU LGPL, version 2 or later.
# See the COPYING.LIB file in the top-level directory.
# Diagnose too few bits (31 of 32)
one 0000000000000000000000000000000