https://bugs.llvm.org/show_bug.cgi?id=39091
Bug ID: 39091
Summary: Missed strlen(globalconststr) fold
Product: libraries
Version: trunk
Hardware: PC
OS: Linux
Status: NEW
Severity: enhancement
Priority: P
Component: Scalar Optimizations
Assignee: unassignedb...@nondot.org
Reporter: david.bolvan...@gmail.com
CC: llvm-bugs@lists.llvm.org
Currently, LLVM refuses to fold:
const char *key = "data"; // folded if key[]
int key_len(void) {
return strlen(key);
}
Probably we need to support it in GetStringLength in ValueTracking.
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