| ; RUN: not --crash llc %s -mtriple aarch64-apple-darwin -debug-only=aarch64-call-lowering -global-isel -global-isel-abort=2 -o - 2>&1 | FileCheck %s |
| ; REQUIRES: asserts |
| |
| ; Verify that we fall back to SelectionDAG, and error out when we can't tail call musttail functions |
| ; CHECK: ... Cannot tail call externally-defined function with weak linkage for this OS. |
| ; CHECK-NEXT: Failed to lower musttail call as tail call |
| ; CHECK-NEXT: warning: Instruction selection used fallback path for caller_weak |
| ; CHECK-NEXT: LLVM ERROR: failed to perform tail call elimination on a call site marked musttail |
| declare extern_weak void @callee_weak() |
| define void @caller_weak() { |
| musttail call void @callee_weak() |
| ret void |
| } |
