llvm/test/CodeGen/Thumb/stack-guard-xo.ll

; NOTE: Assertions have been autogenerated by utils/update_llc_test_checks.py UTC_ARGS: --version 3
; RUN: llc < %s -mtriple=thumbv6m | FileCheck %s
; RUN: llc < %s -mtriple=thumbv6m -mattr=+execute-only | FileCheck %s -check-prefix=V6M
; RUN: llc < %s -mtriple=thumbv8m.base -mattr=+execute-only | FileCheck %s -check-prefix=V8MBASE

define dso_local i32 @main() #0 {
; CHECK-LABEL: main:
; CHECK:       @ %bb.0: @ %entry
; CHECK-NEXT:    push {r7, lr}
; CHECK-NEXT:    sub sp, #24
; CHECK-NEXT:    movs r0, #0
; CHECK-NEXT:    str r0, [sp, #4]
; CHECK-NEXT:    ldr r0, .LCPI0_0
; CHECK-NEXT:    ldr r0, [r0]
; CHECK-NEXT:    str r0, [sp, #20]
; CHECK-NEXT:    add r0, sp, #8
; CHECK-NEXT:    ldrb r0, [r0]
; CHECK-NEXT:    ldr r1, [sp, #20]
; CHECK-NEXT:    ldr r2, .LCPI0_0
; CHECK-NEXT:    ldr r2, [r2]
; CHECK-NEXT:    cmp r2, r1
; CHECK-NEXT:    bne .LBB0_2
; CHECK-NEXT:  @ %bb.1: @ %entry
; CHECK-NEXT:    add sp, #24
; CHECK-NEXT:    pop {r7, pc}
; CHECK-NEXT:  .LBB0_2: @ %entry
; CHECK-NEXT:    bl __stack_chk_fail
; CHECK-NEXT:    .p2align 2
; CHECK-NEXT:  @ %bb.3:
; CHECK-NEXT:  .LCPI0_0:
; CHECK-NEXT:    .long __stack_chk_guard
;
; V6M-LABEL: main:
; V6M:       @ %bb.0: @ %entry
; V6M-NEXT:    push {r7, lr}
; V6M-NEXT:    sub sp, #24
; V6M-NEXT:    movs r0, #0
; V6M-NEXT:    str r0, [sp, #4]
; V6M-NEXT:    movs r0, :upper8_15:__stack_chk_guard
; V6M-NEXT:    lsls r0, r0, #8
; V6M-NEXT:    adds r0, :upper0_7:__stack_chk_guard
; V6M-NEXT:    lsls r0, r0, #8
; V6M-NEXT:    adds r0, :lower8_15:__stack_chk_guard
; V6M-NEXT:    lsls r0, r0, #8
; V6M-NEXT:    adds r0, :lower0_7:__stack_chk_guard
; V6M-NEXT:    ldr r0, [r0]
; V6M-NEXT:    str r0, [sp, #20]
; V6M-NEXT:    add r0, sp, #8
; V6M-NEXT:    ldrb r0, [r0]
; V6M-NEXT:    ldr r1, [sp, #20]
; V6M-NEXT:    movs r2, :upper8_15:__stack_chk_guard
; V6M-NEXT:    lsls r2, r2, #8
; V6M-NEXT:    adds r2, :upper0_7:__stack_chk_guard
; V6M-NEXT:    lsls r2, r2, #8
; V6M-NEXT:    adds r2, :lower8_15:__stack_chk_guard
; V6M-NEXT:    lsls r2, r2, #8
; V6M-NEXT:    adds r2, :lower0_7:__stack_chk_guard
; V6M-NEXT:    ldr r2, [r2]
; V6M-NEXT:    cmp r2, r1
; V6M-NEXT:    bne .LBB0_2
; V6M-NEXT:  @ %bb.1: @ %entry
; V6M-NEXT:    add sp, #24
; V6M-NEXT:    pop {r7, pc}
; V6M-NEXT:  .LBB0_2: @ %entry
; V6M-NEXT:    bl __stack_chk_fail
;
; V8MBASE-LABEL: main:
; V8MBASE:       @ %bb.0: @ %entry
; V8MBASE-NEXT:    push {r7, lr}
; V8MBASE-NEXT:    sub sp, #24
; V8MBASE-NEXT:    movs r0, #0
; V8MBASE-NEXT:    str r0, [sp, #4]
; V8MBASE-NEXT:    movw r0, :lower16:__stack_chk_guard
; V8MBASE-NEXT:    movt r0, :upper16:__stack_chk_guard
; V8MBASE-NEXT:    ldr r0, [r0]
; V8MBASE-NEXT:    str r0, [sp, #20]
; V8MBASE-NEXT:    add r0, sp, #8
; V8MBASE-NEXT:    ldrb r0, [r0]
; V8MBASE-NEXT:    ldr r1, [sp, #20]
; V8MBASE-NEXT:    movw r2, :lower16:__stack_chk_guard
; V8MBASE-NEXT:    movt r2, :upper16:__stack_chk_guard
; V8MBASE-NEXT:    ldr r2, [r2]
; V8MBASE-NEXT:    cmp r2, r1
; V8MBASE-NEXT:    bne .LBB0_2
; V8MBASE-NEXT:  @ %bb.1: @ %entry
; V8MBASE-NEXT:    add sp, #24
; V8MBASE-NEXT:    pop {r7, pc}
; V8MBASE-NEXT:  .LBB0_2: @ %entry
; V8MBASE-NEXT:    bl __stack_chk_fail
entry:
  %retval = alloca i32, align 4
  %buffer = alloca [9 x i8], align 1
  store i32 0, ptr %retval, align 4
  %arrayidx = getelementptr inbounds [9 x i8], ptr %buffer, i32 0, i32 0
  %0 = load i8, ptr %arrayidx, align 1
  %conv = zext i8 %0 to i32
  ret i32 %conv
}

attributes #0 = { ssp "stack-protector-buffer-size"="8" }