; LLVM IR from alibaba/BladeDISC :: tao_compiler/mlir/custom_ops/random_impl.ll (ZN3tao3ral6random21InitRngWithRandomSeedEv)

; Unoptimized IR (clang -disable-llvm-passes):
target datalayout = "e-m:e-p270:32:32-p271:32:32-p272:64:64-i64:64-i128:128-f80:128-n8:16:32:64-S128"
target triple = "x86_64-unknown-linux-gnu"

%"class.std::random_device" = type { %union.anon }
%union.anon = type { %"class.std::mersenne_twister_engine" }
%"class.std::mersenne_twister_engine" = type { [624 x i64], i64 }
%"class.std::__cxx11::basic_string" = type { %"struct.std::__cxx11::basic_string<char>::_Alloc_hider", i64, %union.anon.0 }
%"struct.std::__cxx11::basic_string<char>::_Alloc_hider" = type { ptr }
%union.anon.0 = type { i64, [8 x i8] }
%"class.std::allocator" = type { i8 }

@.str = external hidden unnamed_addr constant [13 x i8], align 1

; Function Attrs: mustprogress uwtable
define dso_local noundef ptr @_ZN3tao3ral6random21InitRngWithRandomSeedEv() #0 personality ptr @__gxx_personality_v0 {
  %1 = alloca %"class.std::random_device", align 8
  %2 = alloca %"class.std::__cxx11::basic_string", align 8
  %3 = alloca %"class.std::allocator", align 1
  %4 = alloca ptr, align 8
  %5 = alloca i32, align 4
  call void @llvm.lifetime.start.p0(i64 5000, ptr %1) #5
  call void @llvm.lifetime.start.p0(i64 32, ptr %2) #5
  call void @llvm.lifetime.start.p0(i64 1, ptr %3) #5
  call void @_ZNSaIcEC2Ev(ptr noundef nonnull align 1 dereferenceable(1) %3) #5
  invoke void @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEC2IS3_EEPKcRKS3_(ptr noundef nonnull align 8 dereferenceable(32) %2, ptr noundef @.str, ptr noundef nonnull align 1 dereferenceable(1) %3)
          to label %6 unwind label %14

6:                                                ; preds = %0
  invoke void @_ZNSt13random_deviceC2ERKNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEE(ptr noundef nonnull align 8 dereferenceable(5000) %1, ptr noundef nonnull align 8 dereferenceable(32) %2)
          to label %7 unwind label %18

7:                                                ; preds = %6
  call void @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEED2Ev(ptr noundef nonnull align 8 dereferenceable(32) %2) #5
  call void @_ZNSt15__new_allocatorIcED2Ev(ptr noundef nonnull align 1 dereferenceable(1) %3) #5
  call void @llvm.lifetime.end.p0(i64 1, ptr %3) #5
  call void @llvm.lifetime.end.p0(i64 32, ptr %2) #5
  %8 = invoke noalias noundef nonnull ptr @_Znwm(i64 noundef 2504) #6
          to label %9 unwind label %23

9:                                                ; preds = %7
  %10 = invoke noundef i32 @_ZNSt13random_deviceclEv(ptr noundef nonnull align 8 dereferenceable(5000) %1)
          to label %11 unwind label %27

11:                                               ; preds = %9
  %12 = zext i32 %10 to i64
  invoke void @_ZNSt23mersenne_twister_engineImLm64ELm312ELm156ELm31ELm13043109905998158313ELm29ELm6148914691236517205ELm17ELm8202884508482404352ELm37ELm18444473444759240704ELm43ELm6364136223846793005EEC2Em(ptr noundef nonnull align 8 dereferenceable(2504) %8, i64 noundef %12)
          to label %13 unwind label %27

13:                                               ; preds = %11
  call void @_ZNSt13random_deviceD2Ev(ptr noundef nonnull align 8 dereferenceable(5000) %1) #5
  call void @llvm.lifetime.end.p0(i64 5000, ptr %1) #5
  ret ptr %8

14:                                               ; preds = %0
  %15 = landingpad { ptr, i32 }
          cleanup
  %16 = extractvalue { ptr, i32 } %15, 0
  store ptr %16, ptr %4, align 8
  %17 = extractvalue { ptr, i32 } %15, 1
  store i32 %17, ptr %5, align 4
  br label %22

18:                                               ; preds = %6
  %19 = landingpad { ptr, i32 }
          cleanup
  %20 = extractvalue { ptr, i32 } %19, 0
  store ptr %20, ptr %4, align 8
  %21 = extractvalue { ptr, i32 } %19, 1
  store i32 %21, ptr %5, align 4
  call void @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEED2Ev(ptr noundef nonnull align 8 dereferenceable(32) %2) #5
  br label %22

22:                                               ; preds = %18, %14
  call void @_ZNSt15__new_allocatorIcED2Ev(ptr noundef nonnull align 1 dereferenceable(1) %3) #5
  call void @llvm.lifetime.end.p0(i64 1, ptr %3) #5
  call void @llvm.lifetime.end.p0(i64 32, ptr %2) #5
  br label %32

23:                                               ; preds = %7
  %24 = landingpad { ptr, i32 }
          cleanup
  %25 = extractvalue { ptr, i32 } %24, 0
  store ptr %25, ptr %4, align 8
  %26 = extractvalue { ptr, i32 } %24, 1
  store i32 %26, ptr %5, align 4
  br label %31

27:                                               ; preds = %11, %9
  %28 = landingpad { ptr, i32 }
          cleanup
  %29 = extractvalue { ptr, i32 } %28, 0
  store ptr %29, ptr %4, align 8
  %30 = extractvalue { ptr, i32 } %28, 1
  store i32 %30, ptr %5, align 4
  call void @_ZdlPvm(ptr noundef %8, i64 noundef 2504) #7
  br label %31

31:                                               ; preds = %27, %23
  call void @_ZNSt13random_deviceD2Ev(ptr noundef nonnull align 8 dereferenceable(5000) %1) #5
  br label %32

32:                                               ; preds = %31, %22
  call void @llvm.lifetime.end.p0(i64 5000, ptr %1) #5
  br label %33

33:                                               ; preds = %32
  %34 = load ptr, ptr %4, align 8
  %35 = load i32, ptr %5, align 4
  %36 = insertvalue { ptr, i32 } poison, ptr %34, 0
  %37 = insertvalue { ptr, i32 } %36, i32 %35, 1
  resume { ptr, i32 } %37
}

; Function Attrs: nocallback nofree nosync nounwind willreturn memory(argmem: readwrite)
declare void @llvm.lifetime.start.p0(i64 immarg, ptr nocapture) #1

; Function Attrs: mustprogress nounwind uwtable
declare void @_ZNSaIcEC2Ev(ptr noundef nonnull align 1 dereferenceable(1)) unnamed_addr #2 align 2

; Function Attrs: mustprogress uwtable
declare dso_local void @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEC2IS3_EEPKcRKS3_(ptr noundef nonnull align 8 dereferenceable(32), ptr noundef, ptr noundef nonnull align 1 dereferenceable(1)) unnamed_addr #0 align 2

declare i32 @__gxx_personality_v0(...)

; Function Attrs: mustprogress uwtable
declare dso_local void @_ZNSt13random_deviceC2ERKNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEE(ptr noundef nonnull align 8 dereferenceable(5000), ptr noundef nonnull align 8 dereferenceable(32)) unnamed_addr #0 align 2

; Function Attrs: mustprogress nounwind uwtable
declare void @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEED2Ev(ptr noundef nonnull align 8 dereferenceable(32)) unnamed_addr #2 align 2

; Function Attrs: nocallback nofree nosync nounwind willreturn memory(argmem: readwrite)
declare void @llvm.lifetime.end.p0(i64 immarg, ptr nocapture) #1

; Function Attrs: nobuiltin allocsize(0)
declare noundef nonnull ptr @_Znwm(i64 noundef) #3

; Function Attrs: mustprogress uwtable
declare dso_local noundef i32 @_ZNSt13random_deviceclEv(ptr noundef nonnull align 8 dereferenceable(5000)) #0 align 2

; Function Attrs: mustprogress uwtable
declare dso_local void @_ZNSt23mersenne_twister_engineImLm64ELm312ELm156ELm31ELm13043109905998158313ELm29ELm6148914691236517205ELm17ELm8202884508482404352ELm37ELm18444473444759240704ELm43ELm6364136223846793005EEC2Em(ptr noundef nonnull align 8 dereferenceable(2504), i64 noundef) unnamed_addr #0 align 2

; Function Attrs: nobuiltin nounwind
declare void @_ZdlPvm(ptr noundef, i64 noundef) #4

; Function Attrs: mustprogress nounwind uwtable
declare dso_local void @_ZNSt13random_deviceD2Ev(ptr noundef nonnull align 8 dereferenceable(5000)) unnamed_addr #2 align 2

; Function Attrs: mustprogress nounwind uwtable
declare dso_local void @_ZNSt15__new_allocatorIcED2Ev(ptr noundef nonnull align 1 dereferenceable(1)) unnamed_addr #2 align 2

attributes #0 = { mustprogress uwtable "min-legal-vector-width"="0" "no-trapping-math"="true" "stack-protector-buffer-size"="8" "target-cpu"="x86-64" "target-features"="+cmov,+cx8,+fxsr,+mmx,+sse,+sse2,+x87" "tune-cpu"="generic" }
attributes #1 = { nocallback nofree nosync nounwind willreturn memory(argmem: readwrite) }
attributes #2 = { mustprogress nounwind uwtable "min-legal-vector-width"="0" "no-trapping-math"="true" "stack-protector-buffer-size"="8" "target-cpu"="x86-64" "target-features"="+cmov,+cx8,+fxsr,+mmx,+sse,+sse2,+x87" "tune-cpu"="generic" }
attributes #3 = { nobuiltin allocsize(0) "no-trapping-math"="true" "stack-protector-buffer-size"="8" "target-cpu"="x86-64" "target-features"="+cmov,+cx8,+fxsr,+mmx,+sse,+sse2,+x87" "tune-cpu"="generic" }
attributes #4 = { nobuiltin nounwind "no-trapping-math"="true" "stack-protector-buffer-size"="8" "target-cpu"="x86-64" "target-features"="+cmov,+cx8,+fxsr,+mmx,+sse,+sse2,+x87" "tune-cpu"="generic" }
attributes #5 = { nounwind }
attributes #6 = { builtin allocsize(0) }
attributes #7 = { builtin nounwind }

!llvm.module.flags = !{!0, !1, !2, !3}
!llvm.ident = !{!4}

!0 = !{i32 1, !"wchar_size", i32 4}
!1 = !{i32 8, !"PIC Level", i32 2}
!2 = !{i32 7, !"PIE Level", i32 2}
!3 = !{i32 7, !"uwtable", i32 2}
!4 = !{!"clang version 19.1.0 (git@github.com:llvm/llvm-project.git a4bf6cd7cfb1a1421ba92bca9d017b49936c55e4)"}


; Optimized IR (opt -passes='default<O3>'):
target datalayout = "e-m:e-p270:32:32-p271:32:32-p272:64:64-i64:64-i128:128-f80:128-n8:16:32:64-S128"
target triple = "x86_64-unknown-linux-gnu"

%"class.std::random_device" = type { %union.anon }
%union.anon = type { %"class.std::mersenne_twister_engine" }
%"class.std::mersenne_twister_engine" = type { [624 x i64], i64 }
%"class.std::__cxx11::basic_string" = type { %"struct.std::__cxx11::basic_string<char>::_Alloc_hider", i64, %union.anon.0 }
%"struct.std::__cxx11::basic_string<char>::_Alloc_hider" = type { ptr }
%union.anon.0 = type { i64, [8 x i8] }
%"class.std::allocator" = type { i8 }

@.str = external hidden unnamed_addr constant [13 x i8], align 1

; Function Attrs: mustprogress uwtable
define dso_local noundef nonnull ptr @_ZN3tao3ral6random21InitRngWithRandomSeedEv() local_unnamed_addr #0 personality ptr @__gxx_personality_v0 {
  %1 = alloca %"class.std::random_device", align 8
  %2 = alloca %"class.std::__cxx11::basic_string", align 8
  %3 = alloca %"class.std::allocator", align 1
  call void @llvm.lifetime.start.p0(i64 5000, ptr nonnull %1) #5
  call void @llvm.lifetime.start.p0(i64 32, ptr nonnull %2) #5
  call void @llvm.lifetime.start.p0(i64 1, ptr nonnull %3) #5
  call void @_ZNSaIcEC2Ev(ptr noundef nonnull align 1 dereferenceable(1) %3) #5
  invoke void @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEC2IS3_EEPKcRKS3_(ptr noundef nonnull align 8 dereferenceable(32) %2, ptr noundef nonnull @.str, ptr noundef nonnull align 1 dereferenceable(1) %3)
          to label %4 unwind label %12

4:                                                ; preds = %0
  invoke void @_ZNSt13random_deviceC2ERKNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEE(ptr noundef nonnull align 8 dereferenceable(5000) %1, ptr noundef nonnull align 8 dereferenceable(32) %2)
          to label %5 unwind label %14

5:                                                ; preds = %4
  call void @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEED2Ev(ptr noundef nonnull align 8 dereferenceable(32) %2) #5
  call void @_ZNSt15__new_allocatorIcED2Ev(ptr noundef nonnull align 1 dereferenceable(1) %3) #5
  call void @llvm.lifetime.end.p0(i64 1, ptr nonnull %3) #5
  call void @llvm.lifetime.end.p0(i64 32, ptr nonnull %2) #5
  %6 = invoke noalias noundef nonnull dereferenceable(2504) ptr @_Znwm(i64 noundef 2504) #6
          to label %7 unwind label %17

7:                                                ; preds = %5
  %8 = invoke noundef i32 @_ZNSt13random_deviceclEv(ptr noundef nonnull align 8 dereferenceable(5000) %1)
          to label %9 unwind label %19

9:                                                ; preds = %7
  %10 = zext i32 %8 to i64
  invoke void @_ZNSt23mersenne_twister_engineImLm64ELm312ELm156ELm31ELm13043109905998158313ELm29ELm6148914691236517205ELm17ELm8202884508482404352ELm37ELm18444473444759240704ELm43ELm6364136223846793005EEC2Em(ptr noundef nonnull align 8 dereferenceable(2504) %6, i64 noundef %10)
          to label %11 unwind label %19

11:                                               ; preds = %9
  call void @_ZNSt13random_deviceD2Ev(ptr noundef nonnull align 8 dereferenceable(5000) %1) #5
  call void @llvm.lifetime.end.p0(i64 5000, ptr nonnull %1) #5
  ret ptr %6

12:                                               ; preds = %0
  %13 = landingpad { ptr, i32 }
          cleanup
  br label %16

14:                                               ; preds = %4
  %15 = landingpad { ptr, i32 }
          cleanup
  call void @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEED2Ev(ptr noundef nonnull align 8 dereferenceable(32) %2) #5
  br label %16

16:                                               ; preds = %14, %12
  %.pn = phi { ptr, i32 } [ %15, %14 ], [ %13, %12 ]
  call void @_ZNSt15__new_allocatorIcED2Ev(ptr noundef nonnull align 1 dereferenceable(1) %3) #5
  call void @llvm.lifetime.end.p0(i64 1, ptr nonnull %3) #5
  call void @llvm.lifetime.end.p0(i64 32, ptr nonnull %2) #5
  br label %22

17:                                               ; preds = %5
  %18 = landingpad { ptr, i32 }
          cleanup
  br label %21

19:                                               ; preds = %9, %7
  %20 = landingpad { ptr, i32 }
          cleanup
  call void @_ZdlPvm(ptr noundef nonnull %6, i64 noundef 2504) #7
  br label %21

21:                                               ; preds = %19, %17
  %.pn5 = phi { ptr, i32 } [ %20, %19 ], [ %18, %17 ]
  call void @_ZNSt13random_deviceD2Ev(ptr noundef nonnull align 8 dereferenceable(5000) %1) #5
  br label %22

22:                                               ; preds = %21, %16
  %.pn5.pn = phi { ptr, i32 } [ %.pn5, %21 ], [ %.pn, %16 ]
  call void @llvm.lifetime.end.p0(i64 5000, ptr nonnull %1) #5
  resume { ptr, i32 } %.pn5.pn
}

; Function Attrs: mustprogress nocallback nofree nosync nounwind willreturn memory(argmem: readwrite)
declare void @llvm.lifetime.start.p0(i64 immarg, ptr nocapture) #1

; Function Attrs: mustprogress nounwind uwtable
declare void @_ZNSaIcEC2Ev(ptr noundef nonnull align 1 dereferenceable(1)) unnamed_addr #2 align 2

; Function Attrs: mustprogress uwtable
declare dso_local void @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEC2IS3_EEPKcRKS3_(ptr noundef nonnull align 8 dereferenceable(32), ptr noundef, ptr noundef nonnull align 1 dereferenceable(1)) unnamed_addr #0 align 2

declare i32 @__gxx_personality_v0(...)

; Function Attrs: mustprogress uwtable
declare dso_local void @_ZNSt13random_deviceC2ERKNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEE(ptr noundef nonnull align 8 dereferenceable(5000), ptr noundef nonnull align 8 dereferenceable(32)) unnamed_addr #0 align 2

; Function Attrs: mustprogress nounwind uwtable
declare void @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEED2Ev(ptr noundef nonnull align 8 dereferenceable(32)) unnamed_addr #2 align 2

; Function Attrs: mustprogress nocallback nofree nosync nounwind willreturn memory(argmem: readwrite)
declare void @llvm.lifetime.end.p0(i64 immarg, ptr nocapture) #1

; Function Attrs: nobuiltin allocsize(0)
declare noundef nonnull ptr @_Znwm(i64 noundef) local_unnamed_addr #3

; Function Attrs: mustprogress uwtable
declare dso_local noundef i32 @_ZNSt13random_deviceclEv(ptr noundef nonnull align 8 dereferenceable(5000)) local_unnamed_addr #0 align 2

; Function Attrs: mustprogress uwtable
declare dso_local void @_ZNSt23mersenne_twister_engineImLm64ELm312ELm156ELm31ELm13043109905998158313ELm29ELm6148914691236517205ELm17ELm8202884508482404352ELm37ELm18444473444759240704ELm43ELm6364136223846793005EEC2Em(ptr noundef nonnull align 8 dereferenceable(2504), i64 noundef) unnamed_addr #0 align 2

; Function Attrs: nobuiltin nounwind
declare void @_ZdlPvm(ptr noundef, i64 noundef) local_unnamed_addr #4

; Function Attrs: mustprogress nounwind uwtable
declare dso_local void @_ZNSt13random_deviceD2Ev(ptr noundef nonnull align 8 dereferenceable(5000)) unnamed_addr #2 align 2

; Function Attrs: mustprogress nounwind uwtable
declare dso_local void @_ZNSt15__new_allocatorIcED2Ev(ptr noundef nonnull align 1 dereferenceable(1)) unnamed_addr #2 align 2

attributes #0 = { mustprogress uwtable "min-legal-vector-width"="0" "no-trapping-math"="true" "stack-protector-buffer-size"="8" "target-cpu"="x86-64" "target-features"="+cmov,+cx8,+fxsr,+mmx,+sse,+sse2,+x87" "tune-cpu"="generic" }
attributes #1 = { mustprogress nocallback nofree nosync nounwind willreturn memory(argmem: readwrite) }
attributes #2 = { mustprogress nounwind uwtable "min-legal-vector-width"="0" "no-trapping-math"="true" "stack-protector-buffer-size"="8" "target-cpu"="x86-64" "target-features"="+cmov,+cx8,+fxsr,+mmx,+sse,+sse2,+x87" "tune-cpu"="generic" }
attributes #3 = { nobuiltin allocsize(0) "no-trapping-math"="true" "stack-protector-buffer-size"="8" "target-cpu"="x86-64" "target-features"="+cmov,+cx8,+fxsr,+mmx,+sse,+sse2,+x87" "tune-cpu"="generic" }
attributes #4 = { nobuiltin nounwind "no-trapping-math"="true" "stack-protector-buffer-size"="8" "target-cpu"="x86-64" "target-features"="+cmov,+cx8,+fxsr,+mmx,+sse,+sse2,+x87" "tune-cpu"="generic" }
attributes #5 = { nounwind }
attributes #6 = { builtin allocsize(0) }
attributes #7 = { builtin nounwind }

!llvm.module.flags = !{!0, !1, !2, !3}
!llvm.ident = !{!4}

!0 = !{i32 1, !"wchar_size", i32 4}
!1 = !{i32 8, !"PIC Level", i32 2}
!2 = !{i32 7, !"PIE Level", i32 2}
!3 = !{i32 7, !"uwtable", i32 2}
!4 = !{!"clang version 19.1.0 (git@github.com:llvm/llvm-project.git a4bf6cd7cfb1a1421ba92bca9d017b49936c55e4)"}


; Effective O3 passes: CorrelatedValuePropagationPass,GlobalOptPass,InferFunctionAttrsPass,InstCombinePass,PostOrderFunctionAttrsPass,SROAPass,SimplifyCFGPass