[cherry-pick] target/riscv: fix ub during instruction decode#18
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A left shift operation caused an implicit integer promotion, triggering the following UBSan error: ``` left shift of 254 by 24 places cannot be represented in type 'int' ``` NOTE: it seems that this code won't work correctly with BE targets, however this is a general problem of the whole implementation anyway. See: riscv-collab/riscv-openocd#1299 Signed-off-by: Anatoly Parshintsev <anatoly.parshintsev@syntacore.com>
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Oct 15, 2025
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A left shift operation caused an implicit integer promotion, triggering the following UBSan error:
NOTE: it seems that this code won't work correctly with BE targets, however this is a general problem of the whole implementation anyway.
See: riscv-collab/riscv-openocd#1299