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| author | Alan Modra <amodra@gmail.com> | 2019-12-11 08:34:57 +1030 |
|---|---|---|
| committer | Alan Modra <amodra@gmail.com> | 2019-12-11 11:40:33 +1030 |
| commit | fb4cb4e26d16f928f00973fcdc99934c9174c957 (patch) | |
| tree | 29b29e3cc3b8105f4a37ede29652a2605bf48a91 /opcodes/ns32k-dis.c | |
| parent | 96f1f60460a87fa63c33e1004f2c98d30f686d8d (diff) | |
| download | binutils-gdb-fb4cb4e26d16f928f00973fcdc99934c9174c957.tar.gz | |
ubsan: ns32k: left shift cannot be represented in type 'int'
* ns32k-dis.c (bit_extract): Use unsigned arithmetic.
(bit_extract_simple, sign_extend): Likewise.
Diffstat (limited to 'opcodes/ns32k-dis.c')
| -rw-r--r-- | opcodes/ns32k-dis.c | 16 |
1 files changed, 7 insertions, 9 deletions
diff --git a/opcodes/ns32k-dis.c b/opcodes/ns32k-dis.c index 22a9389ecff..5e6f0964b7a 100644 --- a/opcodes/ns32k-dis.c +++ b/opcodes/ns32k-dis.c @@ -262,8 +262,8 @@ list_search (int reg_value, const struct ns32k_option *optionP, char *result) static int bit_extract (bfd_byte *buffer, int offset, int count) { - int result; - int bit; + unsigned int result; + unsigned int bit; if (offset < 0 || count < 0) return 0; @@ -291,8 +291,8 @@ bit_extract (bfd_byte *buffer, int offset, int count) static int bit_extract_simple (bfd_byte *buffer, int offset, int count) { - int result; - int bit; + unsigned int result; + unsigned int bit; if (offset < 0 || count < 0) return 0; @@ -325,12 +325,10 @@ bit_copy (bfd_byte *buffer, int offset, int count, char *to) } static int -sign_extend (int value, int bits) +sign_extend (unsigned int value, unsigned int bits) { - value = value & ((1 << bits) - 1); - return (value & (1 << (bits - 1)) - ? value | (~((1 << bits) - 1)) - : value); + unsigned int sign = 1u << bits; + return ((value & (sign - 1)) ^ sign) - sign; } static void |