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ubsan: undefined shift in sign_extend

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* libhppa.h (sign_extend): Avoid undefined behaviour.
This commit is contained in:
Alan Modra
2022-08-13 14:07:31 +09:30
parent 8c68d88cc4
commit 9effb9f15f
1 changed files with 1 additions and 1 deletions
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2
bfd/libhppa.h
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@@ -162,7 +162,7 @@ enum hppa_reloc_expr_type_alt
static inline unsigned ATTRIBUTE_UNUSED
sign_extend (unsigned x, unsigned len)
{
unsigned signbit = (1 << (len - 1));
unsigned signbit = (1u << (len - 1));
unsigned mask = (signbit << 1) - 1;
return ((x & mask) ^ signbit) - signbit;
}