aboutsummaryrefslogtreecommitdiff
path: root/llvm/test/CodeGen/X86/stack-clash-huge.ll
blob: c9990773201f0b40622ad163e61ab6144f10e923 (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
; NOTE: Assertions have been autogenerated by utils/update_llc_test_checks.py UTC_ARGS: --no_x86_scrub_sp
; RUN: llc -mtriple=x86_64-linux-android -verify-machineinstrs < %s | FileCheck -check-prefix=CHECK-X64 %s
; RUN: llc -mtriple=i686-linux-android -verify-machineinstrs < %s | FileCheck -check-prefix=CHECK-X86 %s
; RUN: llc -mtriple=x86_64-linux-gnux32 -verify-machineinstrs < %s | FileCheck -check-prefix=CHECK-X32 %s

define i32 @foo() local_unnamed_addr #0 {
; CHECK-X64-LABEL: foo:
; CHECK-X64:       # %bb.0:
; CHECK-X64-NEXT:    movabsq $-2399997952, %r11 # imm = 0xFFFFFFFF70F2F000
; CHECK-X64-NEXT:    addq %rsp, %r11
; CHECK-X64-NEXT:    .cfi_def_cfa_register %r11
; CHECK-X64-NEXT:    .cfi_adjust_cfa_offset 2399997952
; CHECK-X64-NEXT:  .LBB0_1: # =>This Inner Loop Header: Depth=1
; CHECK-X64-NEXT:    subq $4096, %rsp # imm = 0x1000
; CHECK-X64-NEXT:    movq $0, (%rsp)
; CHECK-X64-NEXT:    cmpq %r11, %rsp
; CHECK-X64-NEXT:    jne .LBB0_1
; CHECK-X64-NEXT:  # %bb.2:
; CHECK-X64-NEXT:    subq $1928, %rsp # imm = 0x788
; CHECK-X64-NEXT:    .cfi_def_cfa_register %rsp
; CHECK-X64-NEXT:    .cfi_def_cfa_offset 2399999888
; CHECK-X64-NEXT:    movl $1, 264(%rsp)
; CHECK-X64-NEXT:    movl $1, 28664(%rsp)
; CHECK-X64-NEXT:    movl -128(%rsp), %eax
; CHECK-X64-NEXT:    movl $2399999880, %ecx # imm = 0x8F0D1788
; CHECK-X64-NEXT:    addq %rcx, %rsp
; CHECK-X64-NEXT:    .cfi_def_cfa_offset 8
; CHECK-X64-NEXT:    retq
;
; CHECK-X86-LABEL: foo:
; CHECK-X86:       # %bb.0:
; CHECK-X86-NEXT:    movl %esp, %eax
; CHECK-X86-NEXT:    subl $2399997952, %eax # imm = 0x8F0D1000
; CHECK-X86-NEXT:    .cfi_def_cfa_register %eax
; CHECK-X86-NEXT:    .cfi_adjust_cfa_offset 2399997952
; CHECK-X86-NEXT:  .LBB0_1: # =>This Inner Loop Header: Depth=1
; CHECK-X86-NEXT:    subl $4096, %esp # imm = 0x1000
; CHECK-X86-NEXT:    movl $0, (%esp)
; CHECK-X86-NEXT:    cmpl %eax, %esp
; CHECK-X86-NEXT:    jne .LBB0_1
; CHECK-X86-NEXT:  # %bb.2:
; CHECK-X86-NEXT:    subl $2060, %esp # imm = 0x80C
; CHECK-X86-NEXT:    .cfi_def_cfa_register %esp
; CHECK-X86-NEXT:    .cfi_def_cfa_offset 2400000016
; CHECK-X86-NEXT:    movl $1, 392(%esp)
; CHECK-X86-NEXT:    movl $1, 28792(%esp)
; CHECK-X86-NEXT:    movl (%esp), %eax
; CHECK-X86-NEXT:    movl $2400000012, %ecx # imm = 0x8F0D180C
; CHECK-X86-NEXT:    addl %ecx, %esp
; CHECK-X86-NEXT:    .cfi_def_cfa_offset 4
; CHECK-X86-NEXT:    retl
;
; CHECK-X32-LABEL: foo:
; CHECK-X32:       # %bb.0:
; CHECK-X32-NEXT:    movl %esp, %r11d
; CHECK-X32-NEXT:    subl $2399997952, %r11d # imm = 0x8F0D1000
; CHECK-X32-NEXT:    .cfi_def_cfa_register %r11
; CHECK-X32-NEXT:    .cfi_adjust_cfa_offset 2399997952
; CHECK-X32-NEXT:  .LBB0_1: # =>This Inner Loop Header: Depth=1
; CHECK-X32-NEXT:    subl $4096, %esp # imm = 0x1000
; CHECK-X32-NEXT:    movq $0, (%esp)
; CHECK-X32-NEXT:    cmpl %r11d, %esp
; CHECK-X32-NEXT:    jne .LBB0_1
; CHECK-X32-NEXT:  # %bb.2:
; CHECK-X32-NEXT:    subl $1928, %esp # imm = 0x788
; CHECK-X32-NEXT:    .cfi_def_cfa_register %rsp
; CHECK-X32-NEXT:    .cfi_def_cfa_offset 2399999888
; CHECK-X32-NEXT:    movl $1, 264(%esp)
; CHECK-X32-NEXT:    movl $1, 28664(%esp)
; CHECK-X32-NEXT:    movl -128(%esp), %eax
; CHECK-X32-NEXT:    movl $2399999880, %ecx # imm = 0x8F0D1788
; CHECK-X32-NEXT:    addl %ecx, %esp
; CHECK-X32-NEXT:    .cfi_def_cfa_offset 8
; CHECK-X32-NEXT:    retq
  %a = alloca i32, i64 600000000, align 16
  %b0 = getelementptr inbounds i32, ptr %a, i64 98
  %b1 = getelementptr inbounds i32, ptr %a, i64 7198
  store volatile i32 1, ptr %b0
  store volatile i32 1, ptr %b1
  %c = load volatile i32, ptr %a
  ret i32 %c
}

attributes #0 =  {"probe-stack"="inline-asm"}