; ModuleID = 'zen_test.530n1rno-cgu.0'
source_filename = "zen_test.530n1rno-cgu.0"
target datalayout = "e-m:e-i64:64-f80:128-n8:16:32:64-S128"
target triple = "x86_64-unknown-linux-gnu"

%"core::sync::atomic::AtomicU64" = type { [0 x i64], i64, [0 x i64] }

@vtable.0 = private unnamed_addr constant { void (i8**)*, i64, i64, i32 (i8**)*, i32 (i8**)*, i32 (i8**)* } { void (i8**)* @_ZN4core3ptr18real_drop_in_place17h0eb271b0ffeae54bE, i64 8, i64 8, i32 (i8**)* @"_ZN3std2rt10lang_start28_$u7b$$u7b$closure$u7d$$u7d$17h9794cd4d6a9ac133E", i32 (i8**)* @"_ZN3std2rt10lang_start28_$u7b$$u7b$closure$u7d$$u7d$17h9794cd4d6a9ac133E", i32 (i8**)* @"_ZN4core3ops8function6FnOnce40call_once$u7b$$u7b$vtable.shim$u7d$$u7d$17hf92263b733905ef4E" }, align 8

; std::rt::lang_start
; Function Attrs: nounwind nonlazybind
define hidden i64 @_ZN3std2rt10lang_start17h734ff74339d801f8E(void ()* nonnull %main, i64 %argc, i8** %argv) unnamed_addr #0 {
start:
  %_7 = alloca i8*, align 8
  %0 = bitcast i8** %_7 to i8*
  call void @llvm.lifetime.start.p0i8(i64 8, i8* nonnull %0)
  %1 = bitcast i8** %_7 to void ()**
  store void ()* %main, void ()** %1, align 8
  %2 = bitcast i8** %_7 to {}*
; call std::rt::lang_start_internal
  %3 = call i64 @_ZN3std2rt19lang_start_internal17h571a3f440066b3daE({}* nonnull align 1 %2, [3 x i64]* noalias readonly align 8 dereferenceable(24) bitcast ({ void (i8**)*, i64, i64, i32 (i8**)*, i32 (i8**)*, i32 (i8**)* }* @vtable.0 to [3 x i64]*), i64 %argc, i8** %argv)
  call void @llvm.lifetime.end.p0i8(i64 8, i8* nonnull %0)
  ret i64 %3
}

; std::rt::lang_start::{{closure}}
; Function Attrs: nounwind nonlazybind
define internal i32 @"_ZN3std2rt10lang_start28_$u7b$$u7b$closure$u7d$$u7d$17h9794cd4d6a9ac133E"(i8** noalias nocapture readonly align 8 dereferenceable(8) %arg0) unnamed_addr #0 {
start:
  %0 = bitcast i8** %arg0 to void ()**
  %1 = load void ()*, void ()** %0, align 8, !nonnull !2
  tail call void %1() #3
  ret i32 0
}

; core::ops::function::FnOnce::call_once{{vtable.shim}}
; Function Attrs: nounwind nonlazybind
define internal i32 @"_ZN4core3ops8function6FnOnce40call_once$u7b$$u7b$vtable.shim$u7d$$u7d$17hf92263b733905ef4E"(i8** nocapture readonly %arg0) unnamed_addr #0 {
start:
  %0 = bitcast i8** %arg0 to void ()**
  %1 = load void ()*, void ()** %0, align 8, !nonnull !2
  tail call void %1() #3, !noalias !3
  ret i32 0
}

; core::ptr::real_drop_in_place
; Function Attrs: norecurse nounwind nonlazybind readnone
define internal void @_ZN4core3ptr18real_drop_in_place17h0eb271b0ffeae54bE(i8** nocapture align 8 dereferenceable(8) %arg0) unnamed_addr #1 {
start:
  ret void
}

; zen_test::main
; Function Attrs: nounwind nonlazybind
define internal void @_ZN8zen_test4main17hd8258ae14400aafeE() unnamed_addr #0 {
start:
  %_3 = alloca %"core::sync::atomic::AtomicU64", align 8
  %0 = bitcast %"core::sync::atomic::AtomicU64"* %_3 to i8*
  call void @llvm.lifetime.start.p0i8(i64 8, i8* nonnull %0)
  %abi_cast.0..sroa_idx = getelementptr inbounds %"core::sync::atomic::AtomicU64", %"core::sync::atomic::AtomicU64"* %_3, i64 0, i32 0, i64 0
  store i64 19, i64* %abi_cast.0..sroa_idx, align 8
  %1 = atomicrmw sub i64* %abi_cast.0..sroa_idx, i64 6 seq_cst
  call void @llvm.lifetime.end.p0i8(i64 8, i8* nonnull %0)
  ret void
}

; std::rt::lang_start_internal
; Function Attrs: nounwind nonlazybind
declare i64 @_ZN3std2rt19lang_start_internal17h571a3f440066b3daE({}* nonnull align 1, [3 x i64]* noalias readonly align 8 dereferenceable(24), i64, i8**) unnamed_addr #0

; Function Attrs: nounwind nonlazybind
define i32 @main(i32, i8**) unnamed_addr #0 {
top:
  %_7.i = alloca i8*, align 8
  %2 = sext i32 %0 to i64
  %3 = bitcast i8** %_7.i to i8*
  call void @llvm.lifetime.start.p0i8(i64 8, i8* nonnull %3) #3
  %4 = bitcast i8** %_7.i to void ()**
  store void ()* @_ZN8zen_test4main17hd8258ae14400aafeE, void ()** %4, align 8
  %5 = bitcast i8** %_7.i to {}*
; call std::rt::lang_start_internal
  %6 = call i64 @_ZN3std2rt19lang_start_internal17h571a3f440066b3daE({}* nonnull align 1 %5, [3 x i64]* noalias readonly align 8 dereferenceable(24) bitcast ({ void (i8**)*, i64, i64, i32 (i8**)*, i32 (i8**)*, i32 (i8**)* }* @vtable.0 to [3 x i64]*), i64 %2, i8** %1) #3
  call void @llvm.lifetime.end.p0i8(i64 8, i8* nonnull %3) #3
  %7 = trunc i64 %6 to i32
  ret i32 %7
}

; Function Attrs: argmemonly nounwind
declare void @llvm.lifetime.start.p0i8(i64 immarg, i8* nocapture) #2

; Function Attrs: argmemonly nounwind
declare void @llvm.lifetime.end.p0i8(i64 immarg, i8* nocapture) #2

attributes #0 = { nounwind nonlazybind "probe-stack"="__rust_probestack" "target-cpu"="x86-64" }
attributes #1 = { norecurse nounwind nonlazybind readnone "probe-stack"="__rust_probestack" "target-cpu"="x86-64" }
attributes #2 = { argmemonly nounwind }
attributes #3 = { nounwind }

!llvm.module.flags = !{!0, !1}

!0 = !{i32 7, !"PIE Level", i32 2}
!1 = !{i32 2, !"RtLibUseGOT", i32 1}
!2 = !{}
!3 = !{!4}
!4 = distinct !{!4, !5, !"_ZN3std2rt10lang_start28_$u7b$$u7b$closure$u7d$$u7d$17h9794cd4d6a9ac133E: %arg0"}
!5 = distinct !{!5, !"_ZN3std2rt10lang_start28_$u7b$$u7b$closure$u7d$$u7d$17h9794cd4d6a9ac133E"}