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1; NOTE: Assertions have been autogenerated by utils/update_test_checks.py UTC_ARGS: --version 52; RUN: opt -S -mtriple=x86_64-unknown-linux-gnu -passes=stack-protector < %s | FileCheck %s3; RUN: opt -S -mtriple=x86_64-unknown-linux-gnu -passes='require<domtree>,stack-protector' < %s | FileCheck %s4 5define void @atomicrmw_xchg(ptr %p) sspstrong {6; CHECK-LABEL: define void @atomicrmw_xchg(7; CHECK-SAME: ptr [[P:%.*]]) #[[ATTR0:[0-9]+]] {8; CHECK-NEXT: [[STACKGUARDSLOT:%.*]] = alloca ptr, align 89; CHECK-NEXT: [[STACKGUARD:%.*]] = load volatile ptr, ptr addrspace(257) inttoptr (i32 40 to ptr addrspace(257)), align 810; CHECK-NEXT: call void @llvm.stackprotector(ptr [[STACKGUARD]], ptr [[STACKGUARDSLOT]])11; CHECK-NEXT: [[A:%.*]] = alloca i64, align 812; CHECK-NEXT: [[TMP1:%.*]] = atomicrmw xchg ptr [[P]], ptr [[A]] acquire, align 813; CHECK-NEXT: [[STACKGUARD1:%.*]] = load volatile ptr, ptr addrspace(257) inttoptr (i32 40 to ptr addrspace(257)), align 814; CHECK-NEXT: [[TMP2:%.*]] = load volatile ptr, ptr [[STACKGUARDSLOT]], align 815; CHECK-NEXT: [[TMP3:%.*]] = icmp eq ptr [[STACKGUARD1]], [[TMP2]]16; CHECK-NEXT: br i1 [[TMP3]], label %[[SP_RETURN:.*]], label %[[CALLSTACKCHECKFAILBLK:.*]], !prof [[PROF0:![0-9]+]]17; CHECK: [[SP_RETURN]]:18; CHECK-NEXT: ret void19; CHECK: [[CALLSTACKCHECKFAILBLK]]:20; CHECK-NEXT: call void @__stack_chk_fail()21; CHECK-NEXT: unreachable22;23 %a = alloca i6424 atomicrmw xchg ptr %p, ptr %a acquire25 ret void26}27;.28; CHECK: [[PROF0]] = !{!"branch_weights", i32 2147481600, i32 2048}29;.30