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

; 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.ArgMaxParamSpec = type { i32 }
%struct.ArchInfo = type { i32, ptr }

; Function Attrs: nocallback nofree nosync nounwind willreturn memory(argmem: readwrite)
declare void @llvm.lifetime.start.p0(i64 immarg, ptr nocapture) #0

; Function Attrs: nocallback nofree nosync nounwind willreturn memory(argmem: readwrite)
declare void @llvm.lifetime.end.p0(i64 immarg, ptr nocapture) #0

; Function Attrs: mustprogress nounwind uwtable
define dso_local noundef i32 @_Z30argmax_infer_forward_tmp_bytes6Tensor15ArgMaxParamSpecS_PjP8ArchInfo(ptr noundef %0, i32 %1, ptr noundef %2, ptr noundef %3, ptr noundef %4) #1 {
  %6 = alloca %struct.ArgMaxParamSpec, align 4
  %7 = alloca ptr, align 8
  %8 = alloca ptr, align 8
  %9 = alloca ptr, align 8
  %10 = alloca ptr, align 8
  %11 = alloca i32, align 4
  %12 = getelementptr inbounds %struct.ArgMaxParamSpec, ptr %6, i32 0, i32 0
  store i32 %1, ptr %12, align 4
  store ptr %0, ptr %7, align 8, !tbaa !5
  store ptr %2, ptr %8, align 8, !tbaa !5
  store ptr %3, ptr %9, align 8, !tbaa !5
  store ptr %4, ptr %10, align 8, !tbaa !5
  call void @llvm.lifetime.start.p0(i64 4, ptr %11) #2
  store i32 51, ptr %11, align 4, !tbaa !9
  %13 = load ptr, ptr %10, align 8, !tbaa !5
  %14 = getelementptr inbounds %struct.ArchInfo, ptr %13, i32 0, i32 0
  %15 = load i32, ptr %14, align 8, !tbaa !11
  %16 = icmp eq i32 %15, 2
  br i1 %16, label %22, label %17

17:                                               ; preds = %5
  %18 = load ptr, ptr %10, align 8, !tbaa !5
  %19 = getelementptr inbounds %struct.ArchInfo, ptr %18, i32 0, i32 0
  %20 = load i32, ptr %19, align 8, !tbaa !11
  %21 = icmp eq i32 %20, 7
  br i1 %21, label %22, label %23

22:                                               ; preds = %17, %5
  br label %25

23:                                               ; preds = %17
  %24 = load ptr, ptr %9, align 8, !tbaa !5
  store i32 0, ptr %24, align 4, !tbaa !14
  store i32 0, ptr %11, align 4, !tbaa !9
  br label %25

25:                                               ; preds = %23, %22
  %26 = load i32, ptr %11, align 4, !tbaa !9
  call void @llvm.lifetime.end.p0(i64 4, ptr %11) #2
  ret i32 %26
}

attributes #0 = { nocallback nofree nosync nounwind willreturn memory(argmem: readwrite) }
attributes #1 = { 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 #2 = { 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, !10, i64 0}
!10 = !{!"_ZTS2EE", !7, i64 0}
!11 = !{!12, !13, i64 0}
!12 = !{!"_ZTS8ArchInfo", !13, i64 0, !6, i64 8}
!13 = !{!"_ZTS4Arch", !7, i64 0}
!14 = !{!15, !15, i64 0}
!15 = !{!"int", !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"

; Function Attrs: mustprogress nofree norecurse nosync nounwind willreturn memory(argmem: readwrite) uwtable
define dso_local noundef range(i32 0, 52) i32 @_Z30argmax_infer_forward_tmp_bytes6Tensor15ArgMaxParamSpecS_PjP8ArchInfo(ptr nocapture noundef readnone %0, i32 %1, ptr nocapture noundef readnone %2, ptr nocapture noundef writeonly %3, ptr nocapture noundef readonly %4) local_unnamed_addr #0 {
  %6 = load i32, ptr %4, align 8, !tbaa !5
  switch i32 %6, label %7 [
    i32 2, label %8
    i32 7, label %8
  ]

7:                                                ; preds = %5
  store i32 0, ptr %3, align 4, !tbaa !11
  br label %8

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

attributes #0 = { mustprogress nofree norecurse nosync nounwind willreturn memory(argmem: readwrite) 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 = !{!"_ZTS8ArchInfo", !7, i64 0, !10, i64 8}
!7 = !{!"_ZTS4Arch", !8, i64 0}
!8 = !{!"omnipotent char", !9, i64 0}
!9 = !{!"Simple C++ TBAA"}
!10 = !{!"any pointer", !8, i64 0}
!11 = !{!12, !12, i64 0}
!12 = !{!"int", !8, i64 0}


; Effective O3 passes: EarlyCSEPass,GlobalOptPass,IPSCCPPass,InferFunctionAttrsPass,PostOrderFunctionAttrsPass,SROAPass,SimplifyCFGPass