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1; RUN: llc -mtriple=x86_64-linux-gnu %s -o - | FileCheck %s2 3declare swifttailcc void @callee([6 x i64], i64, i64)4 5@var = external global ptr6 7define swifttailcc void @caller(i64 %n) {8; CHECK-LABEL: caller:9; CHECK: subq $16, %rsp10; CHECK: pushq %rbp11; CHECK: movq %rsp, %rbp12; CHECK: pushq %rbx13; CHECK: andq $-32, %rsp14; [... don't really care what happens to rsp to allocate %ptr ...]15; CHECK: movq 24(%rbp), [[RETADDR:%.*]]16; CHECK: movq [[RETADDR]], 8(%rbp)17; CHECK: movq $42, 16(%rbp)18; CHECK: movq $0, 24(%rbp)19; CHECK: leaq -8(%rbp), %rsp20; CHECK: popq %rbx21; CHECK: popq %rbp22; CHECK: jmp callee23 24 call void asm sideeffect "", "~{rbx}"()25 %ptr = alloca i8, i64 %n, align 3226 store ptr %ptr, ptr @var27 tail call swifttailcc void @callee([6 x i64] undef, i64 42, i64 0)28 ret void29}30