; RUN: llc < %s | FileCheck %s target datalayout = "e-m:e-i64:64-f80:128-n8:16:32:64-S128" target triple = "x86_64-unknown-linux-gnu" define i32 @foo_noprotect() local_unnamed_addr { ; CHECK-LABEL: foo_noprotect: ; CHECK: # %bb.0: ; CHECK-NEXT: pushq %rbp ; CHECK-NEXT: .cfi_def_cfa_offset 16 ; CHECK-NEXT: .cfi_offset %rbp, -16 ; CHECK-NEXT: movq %rsp, %rbp ; CHECK-NEXT: .cfi_def_cfa_register %rbp ; CHECK-NEXT: andq $-4096, %rsp # imm = 0xF000 ; CHECK-NEXT: subq $73728, %rsp # imm = 0x12000 ; CHECK-NEXT: movl $1, 392(%rsp) ; CHECK-NEXT: movl $1, 28792(%rsp) ; CHECK-NEXT: movl (%rsp), %eax ; CHECK-NEXT: movq %rbp, %rsp ; CHECK-NEXT: popq %rbp ; CHECK-NEXT: .cfi_def_cfa %rsp, 8 ; CHECK-NEXT: retq %a = alloca i32, i64 18000, align 4096 %b0 = getelementptr inbounds i32, i32* %a, i64 98 %b1 = getelementptr inbounds i32, i32* %a, i64 7198 store volatile i32 1, i32* %b0 store volatile i32 1, i32* %b1 %c = load volatile i32, i32* %a ret i32 %c } define i32 @foo_protect() local_unnamed_addr #0 { ; CHECK-LABEL: foo_protect: ; CHECK: # %bb.0: ; CHECK-NEXT: pushq %rbp ; CHECK-NEXT: .cfi_def_cfa_offset 16 ; CHECK-NEXT: .cfi_offset %rbp, -16 ; CHECK-NEXT: movq %rsp, %rbp ; CHECK-NEXT: .cfi_def_cfa_register %rbp ; CHECK-NEXT: movq %rsp, %r11 ; CHECK-NEXT: andq $-4096, %r11 # imm = 0xF000 ; CHECK-NEXT: cmpq %rsp, %r11 ; CHECK-NEXT: je .LBB1_4 ; CHECK-NEXT:# %bb.1: ; CHECK-NEXT: subq $4096, %rsp # imm = 0x1000 ; CHECK-NEXT: cmpq %rsp, %r11 ; CHECK-NEXT: jb .LBB1_3 ; CHECK-NEXT:.LBB1_2: # =>This Inner Loop Header: Depth=1 ; CHECK-NEXT: movq $0, (%rsp) ; CHECK-NEXT: subq $4096, %rsp # imm = 0x1000 ; CHECK-NEXT: cmpq %rsp, %r11 ; CHECK-NEXT: jb .LBB1_2 ; CHECK-NEXT:.LBB1_3: ; CHECK-NEXT: movq %r11, %rsp ; CHECK-NEXT: movq $0, (%rsp) ; CHECK-NEXT:.LBB1_4: ; CHECK-NEXT: movq %rsp, %r11 ; CHECK-NEXT: subq $73728, %r11 # imm = 0x12000 ; CHECK-NEXT:.LBB1_5: # =>This Inner Loop Header: Depth=1 ; CHECK-NEXT: subq $4096, %rsp # imm = 0x1000 ; CHECK-NEXT: movq $0, (%rsp) ; CHECK-NEXT: cmpq %r11, %rsp ; CHECK-NEXT: jne .LBB1_5 ; CHECK-NEXT:# %bb.6: ; CHECK-NEXT: movl $1, 392(%rsp) ; CHECK-NEXT: movl $1, 28792(%rsp) ; CHECK-NEXT: movl (%rsp), %eax ; CHECK-NEXT: movq %rbp, %rsp ; CHECK-NEXT: popq %rbp ; CHECK-NEXT: .cfi_def_cfa %rsp, 8 ; CHECK-NEXT: retq %a = alloca i32, i64 18000, align 4096 %b0 = getelementptr inbounds i32, i32* %a, i64 98 %b1 = getelementptr inbounds i32, i32* %a, i64 7198 store volatile i32 1, i32* %b0 store volatile i32 1, i32* %b1 %c = load volatile i32, i32* %a ret i32 %c } attributes #0 = {"probe-stack"="inline-asm"}