https://bugs.llvm.org/show_bug.cgi?id=52124
Bug ID: 52124
Summary: Failure to optimize null check after nonnull call
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
void f1(void *a) __attribute__((nonnull));
bool g1(void *q) {
f1(q);
return q == 0;
}
The return statement can be optimized to `return false;`. This optimization is
done by GCC, but not by LLVM.
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