| ; RUN: llc < %s -mtriple=s390x-linux-gnu | FileCheck %s |
| |
| ; CHECK-LABEL: @test_stack_guard |
| ; CHECK: ear [[REG1:%r[1-9][0-9]?]], %a0 |
| ; CHECK: sllg [[REG1]], [[REG1]], 32 |
| ; CHECK: ear [[REG1]], %a1 |
| ; CHECK: lg [[REG1]], 40([[REG1]]) |
| ; CHECK: stg [[REG1]], {{[0-9]*}}(%r15) |
| ; CHECK: brasl %r14, foo3@PLT |
| ; CHECK: ear [[REG2:%r[1-9][0-9]?]], %a0 |
| ; CHECK: sllg [[REG2]], [[REG2]], 32 |
| ; CHECK: ear [[REG2]], %a1 |
| ; CHECK: lg [[REG2]], 40([[REG2]]) |
| ; CHECK: cg [[REG2]], {{[0-9]*}}(%r15) |
| |
| define i32 @test_stack_guard() #0 { |
| entry: |
| %a1 = alloca [256 x i32], align 4 |
| call void @llvm.lifetime.start.p0(i64 1024, ptr %a1) |
| call void @foo3(ptr %a1) |
| call void @llvm.lifetime.end.p0(i64 1024, ptr %a1) |
| ret i32 0 |
| } |
| |
| ; Function Attrs: nounwind |
| declare void @llvm.lifetime.start.p0(i64, ptr nocapture) |
| |
| declare void @foo3(ptr) |
| |
| ; Function Attrs: nounwind |
| declare void @llvm.lifetime.end.p0(i64, ptr nocapture) |
| |
| attributes #0 = { sspstrong } |