1; RUN: not --crash llc -mtriple=thumbv7k-apple-ios %s -o - 2>&1 | FileCheck %s
2
3; CHECK: LLVM ERROR: failed to perform tail call elimination on a call site marked musttail
4declare tailcc [16 x i64] @callee()
5define tailcc [16 x i64] @caller() {
6  %res = musttail call tailcc [16 x i64] @callee()
7  ret [16 x i64] %res
8}
9