1; RUN: llc -mtriple=x86_64-pc-linux-gnu < %s -o - | FileCheck %s
2
3; Ensure that red zone usage occurs.
4define signext i8 @testStackProbesOff() {
5  %array = alloca [40096 x i8], align 16
6  ret i8 0
7
8; CHECK-LABEL:  testStackProbesOff:
9; CHECK:        subq $39976, %rsp # imm = 0x9C28
10}
11
12; Ensure stack probes do not result in red zone usage.
13define void @testStackProbesOn() "probe-stack"="__probestack" {
14  %array = alloca [40096 x i8], align 16
15  ret void
16
17; CHECK-LABEL:  testStackProbesOn:
18; CHECK:        movl $40104, %eax # imm = 0x9CA8
19; CHECK-NEXT:   callq __probestack
20; CHECK-NEXT:   subq %rax, %rsp
21}
22