http://llvm.org/bugs/show_bug.cgi?id=15782
Bug ID: 15782
Summary: optimize bitwise operations across bswap
Product: libraries
Version: trunk
Hardware: PC
OS: Linux
Status: NEW
Severity: normal
Priority: P
Component: Scalar Optimizations
Assignee: [email protected]
Reporter: [email protected]
CC: [email protected]
Classification: Unclassified
Currently (using debian package of 3.3~svn177638), code like the following
cannot be optimized:
uint32_t frob(uint32_t a, uint32_t b)
{
return __builtin_bswap32(__builtin_bswap32(a) | __builtin_bswap32(b));
}
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