https://bugs.llvm.org/show_bug.cgi?id=47111
Bug ID: 47111
Summary: Failure to optimize code involving strnlen
Product: libraries
Version: trunk
Hardware: PC
OS: Linux
Status: NEW
Severity: enhancement
Priority: P
Component: Scalar Optimizations
Assignee: unassignedb...@nondot.org
Reporter: gabrav...@gmail.com
CC: llvm-bugs@lists.llvm.org
size_t f()
{
return strnlen("", 0);
}
This code can be transformed to `return 0;`. This transformation is done by
GCC, but not by LLVM. This is most likely caused by a lack of a builtin for
strnlen.
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