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; NOTE: Assertions have been autogenerated by utils/update_test_checks.py UTC_ARGS: --version 5
; RUN: opt -S -mtriple=x86_64-unknown-linux-gnu -passes=stack-protector < %s | FileCheck %s
; RUN: opt -S -mtriple=x86_64-unknown-linux-gnu -passes='require<domtree>,stack-protector' < %s | FileCheck %s
define void @atomicrmw_xchg(ptr %p) sspstrong {
; CHECK-LABEL: define void @atomicrmw_xchg(
; CHECK-SAME: ptr [[P:%.*]]) #[[ATTR0:[0-9]+]] {
; CHECK-NEXT: [[STACKGUARDSLOT:%.*]] = alloca ptr, align 8
; CHECK-NEXT: [[STACKGUARD:%.*]] = load volatile ptr, ptr addrspace(257) inttoptr (i32 40 to ptr addrspace(257)), align 8
; CHECK-NEXT: call void @llvm.stackprotector(ptr [[STACKGUARD]], ptr [[STACKGUARDSLOT]])
; CHECK-NEXT: [[A:%.*]] = alloca i64, align 8
; CHECK-NEXT: [[TMP1:%.*]] = atomicrmw xchg ptr [[P]], ptr [[A]] acquire, align 8
; CHECK-NEXT: [[STACKGUARD1:%.*]] = load volatile ptr, ptr addrspace(257) inttoptr (i32 40 to ptr addrspace(257)), align 8
; CHECK-NEXT: [[TMP2:%.*]] = load volatile ptr, ptr [[STACKGUARDSLOT]], align 8
; CHECK-NEXT: [[TMP3:%.*]] = icmp eq ptr [[STACKGUARD1]], [[TMP2]]
; CHECK-NEXT: br i1 [[TMP3]], label %[[SP_RETURN:.*]], label %[[CALLSTACKCHECKFAILBLK:.*]], !prof [[PROF0:![0-9]+]]
; CHECK: [[SP_RETURN]]:
; CHECK-NEXT: ret void
; CHECK: [[CALLSTACKCHECKFAILBLK]]:
; CHECK-NEXT: call void @__stack_chk_fail()
; CHECK-NEXT: unreachable
;
%a = alloca i64
atomicrmw xchg ptr %p, ptr %a acquire
ret void
}
;.
; CHECK: [[PROF0]] = !{!"branch_weights", i32 2147481600, i32 2048}
;.
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