; LLVM IR from huawei-noah/bolt :: compute/tensor/src/cpu/argmax.ll (Z10argmax_cpu10TensorDescPKv15ArgMaxParamSpecS_Pv)

; 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"

%struct.TensorDesc = type { i32, i32, i32, [20 x i32] }
%struct.ArgMaxParamSpec = type { i32 }

; Function Attrs: mustprogress uwtable
define dso_local noundef i32 @_Z10argmax_cpu10TensorDescPKv15ArgMaxParamSpecS_Pv(ptr noundef byval(%struct.TensorDesc) align 8 %0, ptr noundef %1, i32 %2, ptr noundef byval(%struct.TensorDesc) align 8 %3, ptr noundef %4) #0 {
  %6 = alloca %struct.ArgMaxParamSpec, align 4
  %7 = alloca ptr, align 8
  %8 = alloca ptr, align 8
  %9 = alloca i32, align 4
  %10 = alloca i32, align 4
  %11 = alloca i32, align 4
  %12 = alloca %struct.TensorDesc, align 8
  %13 = alloca %struct.TensorDesc, align 8
  %14 = getelementptr inbounds %struct.ArgMaxParamSpec, ptr %6, i32 0, i32 0
  store i32 %2, ptr %14, align 4
  store ptr %1, ptr %7, align 8, !tbaa !5
  store ptr %4, ptr %8, align 8, !tbaa !5
  call void @llvm.lifetime.start.p0(i64 4, ptr %9) #3
  %15 = getelementptr inbounds %struct.TensorDesc, ptr %0, i32 0, i32 0
  %16 = load i32, ptr %15, align 8, !tbaa !9
  store i32 %16, ptr %9, align 4, !tbaa !14
  call void @llvm.lifetime.start.p0(i64 4, ptr %10) #3
  store i32 0, ptr %10, align 4, !tbaa !15
  call void @llvm.lifetime.start.p0(i64 4, ptr %11) #3
  %17 = getelementptr inbounds %struct.ArgMaxParamSpec, ptr %6, i32 0, i32 0
  %18 = load i32, ptr %17, align 4, !tbaa !17
  store i32 %18, ptr %11, align 4, !tbaa !19
  %19 = load i32, ptr %9, align 4, !tbaa !14
  switch i32 %19, label %25 [
    i32 3, label %20
  ]

20:                                               ; preds = %5
  call void @llvm.memcpy.p0.p0.i64(ptr align 4 %12, ptr align 8 %0, i64 92, i1 false), !tbaa.struct !20
  %21 = load ptr, ptr %7, align 8, !tbaa !5
  %22 = load i32, ptr %11, align 4, !tbaa !19
  call void @llvm.memcpy.p0.p0.i64(ptr align 4 %13, ptr align 8 %3, i64 92, i1 false), !tbaa.struct !20
  %23 = load ptr, ptr %8, align 8, !tbaa !5
  %24 = call noundef i32 @_ZL6argmaxIiE2EE10TensorDescPKT_iS1_Pj(ptr noundef byval(%struct.TensorDesc) align 8 %12, ptr noundef %21, i32 noundef %22, ptr noundef byval(%struct.TensorDesc) align 8 %13, ptr noundef %23)
  store i32 %24, ptr %10, align 4, !tbaa !15
  br label %26

25:                                               ; preds = %5
  store i32 51, ptr %10, align 4, !tbaa !15
  br label %26

26:                                               ; preds = %25, %20
  %27 = load i32, ptr %10, align 4, !tbaa !15
  call void @llvm.lifetime.end.p0(i64 4, ptr %11) #3
  call void @llvm.lifetime.end.p0(i64 4, ptr %10) #3
  call void @llvm.lifetime.end.p0(i64 4, ptr %9) #3
  ret i32 %27
}

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

; Function Attrs: mustprogress uwtable
declare hidden noundef i32 @_ZL6argmaxIiE2EE10TensorDescPKT_iS1_Pj(ptr noundef byval(%struct.TensorDesc) align 8, ptr noundef, i32 noundef, ptr noundef byval(%struct.TensorDesc) align 8, ptr noundef) #0

; Function Attrs: nocallback nofree nounwind willreturn memory(argmem: readwrite)
declare void @llvm.memcpy.p0.p0.i64(ptr noalias nocapture writeonly, ptr noalias nocapture readonly, i64, i1 immarg) #2

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

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 = { nocallback nofree nounwind willreturn memory(argmem: readwrite) }
attributes #3 = { 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)"}
!5 = !{!6, !6, i64 0}
!6 = !{!"any pointer", !7, i64 0}
!7 = !{!"omnipotent char", !8, i64 0}
!8 = !{!"Simple C++ TBAA"}
!9 = !{!10, !11, i64 0}
!10 = !{!"_ZTS10TensorDesc", !11, i64 0, !12, i64 4, !13, i64 8, !7, i64 12}
!11 = !{!"_ZTS8DataType", !7, i64 0}
!12 = !{!"_ZTS10DataFormat", !7, i64 0}
!13 = !{!"int", !7, i64 0}
!14 = !{!11, !11, i64 0}
!15 = !{!16, !16, i64 0}
!16 = !{!"_ZTS2EE", !7, i64 0}
!17 = !{!18, !13, i64 0}
!18 = !{!"_ZTS15ArgMaxParamSpec", !13, i64 0}
!19 = !{!13, !13, i64 0}
!20 = !{i64 0, i64 4, !14, i64 4, i64 4, !21, i64 8, i64 4, !19, i64 12, i64 80, !22}
!21 = !{!12, !12, i64 0}
!22 = !{!7, !7, i64 0}


; 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"

%struct.TensorDesc = type { i32, i32, i32, [20 x i32] }

; Function Attrs: mustprogress uwtable
define dso_local noundef i32 @_Z10argmax_cpu10TensorDescPKv15ArgMaxParamSpecS_Pv(ptr nocapture noundef readonly byval(%struct.TensorDesc) align 8 %0, ptr noundef %1, i32 %2, ptr nocapture noundef readonly byval(%struct.TensorDesc) align 8 %3, ptr noundef %4) local_unnamed_addr #0 {
  %6 = load i32, ptr %0, align 8, !tbaa !5
  %cond = icmp eq i32 %6, 3
  br i1 %cond, label %7, label %9

7:                                                ; preds = %5
  %8 = tail call noundef i32 @_ZL6argmaxIiE2EE10TensorDescPKT_iS1_Pj(ptr noundef nonnull byval(%struct.TensorDesc) align 8 %0, ptr noundef %1, i32 noundef %2, ptr noundef nonnull byval(%struct.TensorDesc) align 8 %3, ptr noundef %4)
  br label %9

9:                                                ; preds = %5, %7
  %.0 = phi i32 [ %8, %7 ], [ 51, %5 ]
  ret i32 %.0
}

; Function Attrs: mustprogress uwtable
declare hidden noundef i32 @_ZL6argmaxIiE2EE10TensorDescPKT_iS1_Pj(ptr noundef byval(%struct.TensorDesc) align 8, ptr noundef, i32 noundef, ptr noundef byval(%struct.TensorDesc) align 8, ptr noundef) local_unnamed_addr #0

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" }

!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)"}
!5 = !{!6, !7, i64 0}
!6 = !{!"_ZTS10TensorDesc", !7, i64 0, !10, i64 4, !11, i64 8, !8, i64 12}
!7 = !{!"_ZTS8DataType", !8, i64 0}
!8 = !{!"omnipotent char", !9, i64 0}
!9 = !{!"Simple C++ TBAA"}
!10 = !{!"_ZTS10DataFormat", !8, i64 0}
!11 = !{!"int", !8, i64 0}


; Effective O3 passes: DSEPass,EarlyCSEPass,GlobalOptPass,InferFunctionAttrsPass,InstCombinePass,MemCpyOptPass,PostOrderFunctionAttrsPass,SROAPass,SimplifyCFGPass,TailCallElimPass