https://bugs.llvm.org/show_bug.cgi?id=47298
Bug ID: 47298
Summary: Failure to optimize strlen of string with known length
Product: libraries
Version: trunk
Hardware: PC
OS: Linux
Status: NEW
Severity: enhancement
Priority: P
Component: Support Libraries
Assignee: unassignedb...@nondot.org
Reporter: gabrav...@gmail.com
CC: llvm-bugs@lists.llvm.org
bool f()
{
char a[4];
strcpy(a, "123");
return strlen(a) == 3;
}
This can be optimized to `return true;`. This transformation is done by GCC,
but not by LLVM.
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