http://llvm.org/bugs/show_bug.cgi?id=20670
Bug ID: 20670
Summary: _mm_loadu_si128 parameter has wrong type
Product: clang
Version: trunk
Hardware: PC
OS: FreeBSD
Status: NEW
Severity: normal
Priority: P
Component: Headers
Assignee: [email protected]
Reporter: [email protected]
CC: [email protected]
Classification: Unclassified
In <emmintrin.h>, _mm_loadu_si128 is declared as:
static __inline__ __m128i __attribute__((__always_inline__, __nodebug__))
_mm_loadu_si128(__m128i const *__p)
i.e., taking a (__m128i const *) parameter. This is a bug, since __m128i is
16-byte aligned, and the whole point of the _mm_loadu_si128 is that it performs
*unaligned* loads -- so you're forcing people to write code which produces
"cast increases required alignment" warnings.
I realize that this was Intel's bug originally, but I don't see any reason why
you can't fix it.
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