| ; RUN: llc -mtriple=x86_64-linux-gnu %s -o - | FileCheck %s |
| |
| declare swifttailcc void @callee([6 x i64], i64, i64) |
| |
| @var = external global ptr |
| |
| define swifttailcc void @caller(i64 %n) { |
| ; CHECK-LABEL: caller: |
| ; CHECK: subq $16, %rsp |
| ; CHECK: pushq %rbp |
| ; CHECK: movq %rsp, %rbp |
| ; CHECK: pushq %rbx |
| ; CHECK: andq $-32, %rsp |
| ; [... don't really care what happens to rsp to allocate %ptr ...] |
| ; CHECK: movq 24(%rbp), [[RETADDR:%.*]] |
| ; CHECK: movq [[RETADDR]], 8(%rbp) |
| ; CHECK: movq $42, 16(%rbp) |
| ; CHECK: movq $0, 24(%rbp) |
| ; CHECK: leaq -8(%rbp), %rsp |
| ; CHECK: popq %rbx |
| ; CHECK: popq %rbp |
| ; CHECK: jmp callee |
| |
| call void asm sideeffect "", "~{rbx}"() |
| %ptr = alloca i8, i64 %n, align 32 |
| store ptr %ptr, ptr @var |
| tail call swifttailcc void @callee([6 x i64] undef, i64 42, i64 0) |
| ret void |
| } |
