1; RUN: llc < %s -mtriple=s390x-linux-gnu | FileCheck %s 2 3; CHECK-LABEL: @test_stack_guard 4; CHECK: ear [[REG1:%r[1-9][0-9]?]], %a0 5; CHECK: sllg [[REG1]], [[REG1]], 32 6; CHECK: ear [[REG1]], %a1 7; CHECK: lg [[REG1]], 40([[REG1]]) 8; CHECK: stg [[REG1]], {{[0-9]*}}(%r15) 9; CHECK: brasl %r14, foo3@PLT 10; CHECK: ear [[REG2:%r[1-9][0-9]?]], %a0 11; CHECK: sllg [[REG2]], [[REG2]], 32 12; CHECK: ear [[REG2]], %a1 13; CHECK: lg [[REG2]], 40([[REG2]]) 14; CHECK: cg [[REG2]], {{[0-9]*}}(%r15) 15 16define i32 @test_stack_guard() #0 { 17entry: 18 %a1 = alloca [256 x i32], align 4 19 call void @llvm.lifetime.start.p0(i64 1024, ptr %a1) 20 call void @foo3(ptr %a1) 21 call void @llvm.lifetime.end.p0(i64 1024, ptr %a1) 22 ret i32 0 23} 24 25; Function Attrs: nounwind 26declare void @llvm.lifetime.start.p0(i64, ptr nocapture) 27 28declare void @foo3(ptr) 29 30; Function Attrs: nounwind 31declare void @llvm.lifetime.end.p0(i64, ptr nocapture) 32 33attributes #0 = { sspstrong } 34