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Re: ubsan: ns32k: left shift cannot be represented in type

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* ns32k-dis.c (sign_extend): Correct last patch.
This commit is contained in:
Alan Modra 2019-12-11 13:11:07 +10:30
parent 5c05618a0a
commit 5afa80e9a8
2 changed files with 6 additions and 2 deletions
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4
opcodes/ChangeLog
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@ -1,3 +1,7 @@
2019-12-11 Alan Modra <amodra@gmail.com>
* ns32k-dis.c (sign_extend): Correct last patch.
2019-12-11 Alan Modra <amodra@gmail.com> 2019-12-11 Alan Modra <amodra@gmail.com>
* vax-dis.c (NEXTLONG): Avoid signed overflow. * vax-dis.c (NEXTLONG): Avoid signed overflow.

4
opcodes/ns32k-dis.c
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@ -327,8 +327,8 @@ bit_copy (bfd_byte *buffer, int offset, int count, char *to)
static int static int
sign_extend (unsigned int value, unsigned int bits) sign_extend (unsigned int value, unsigned int bits)
{ {
unsigned int sign = 1u << bits; unsigned int sign = 1u << (bits - 1);
return ((value & (sign - 1)) ^ sign) - sign; return ((value & (sign + sign - 1)) ^ sign) - sign;
} }
static void static void