1 ; RUN: llc < %s -mtriple=arm64-apple-ios -relocation-model=pic -frame-pointer=all | FileCheck %s
3 @__stack_chk_guard = external global i64*
7 ; CHECK: adrp [[R0:x[0-9]+]], ___stack_chk_guard@GOTPAGE
8 ; CHECK: ldr [[R1:x[0-9]+]], {{\[}}[[R0]], ___stack_chk_guard@GOTPAGEOFF{{\]}}
9 ; Load the stack guard for the second time, just in case the previous value gets spilled.
10 ; CHECK: adrp [[GUARD_PAGE:x[0-9]+]], ___stack_chk_guard@GOTPAGE
11 ; CHECK: ldr [[R2:x[0-9]+]], {{\[}}[[R1]]{{\]}}
12 ; CHECK: stur [[R2]], {{\[}}x29, [[SLOT0:[0-9#\-]+]]{{\]}}
13 ; CHECK: ldur [[R3:x[0-9]+]], {{\[}}x29, [[SLOT0]]{{\]}}
14 ; CHECK: ldr [[GUARD_ADDR:x[0-9]+]], {{\[}}[[GUARD_PAGE]], ___stack_chk_guard@GOTPAGEOFF{{\]}}
15 ; CHECK: ldr [[GUARD:x[0-9]+]], {{\[}}[[GUARD_ADDR]]{{\]}}
16 ; CHECK: cmp [[GUARD]], [[R3]]
19 define i32 @test_stack_guard_remat2() {
21 %StackGuardSlot = alloca i8*
22 %StackGuard = load i8*, i8** bitcast (i64** @__stack_chk_guard to i8**)
23 call void @llvm.stackprotector(i8* %StackGuard, i8** %StackGuardSlot)
24 %container = alloca [32 x i8], align 1
25 call void @llvm.stackprotectorcheck(i8** bitcast (i64** @__stack_chk_guard to i8**))
29 declare void @llvm.stackprotector(i8*, i8**)
30 declare void @llvm.stackprotectorcheck(i8**)