; LLVM IR from OpenMathLib/OpenBLAS :: relapack/src (dlauum)

; 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"

@.str = external hidden unnamed_addr constant [2 x i8], align 1
@.str.1 = external hidden unnamed_addr constant [2 x i8], align 1
@.str.2 = external hidden unnamed_addr constant [7 x i8], align 1

; Function Attrs: nounwind uwtable
define dso_local void @RELAPACK_dlauum(ptr noundef %0, ptr noundef %1, ptr noundef %2, ptr noundef %3, ptr noundef %4) #0 {
  %6 = alloca ptr, align 8
  %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 = alloca i32, align 4
  %13 = alloca i32, align 4
  %14 = alloca i32, align 4
  %15 = alloca i8, align 1
  store ptr %0, ptr %6, align 8, !tbaa !5
  store ptr %1, 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) #3
  %16 = load ptr, ptr %6, align 8, !tbaa !5
  %17 = call i32 @lsame_(ptr noundef %16, ptr noundef @.str)
  store i32 %17, ptr %11, align 4, !tbaa !9
  call void @llvm.lifetime.start.p0(i64 4, ptr %12) #3
  %18 = load ptr, ptr %6, align 8, !tbaa !5
  %19 = call i32 @lsame_(ptr noundef %18, ptr noundef @.str.1)
  store i32 %19, ptr %12, align 4, !tbaa !9
  %20 = load ptr, ptr %10, align 8, !tbaa !5
  store i32 0, ptr %20, align 4, !tbaa !9
  %21 = load i32, ptr %11, align 4, !tbaa !9
  %22 = icmp ne i32 %21, 0
  br i1 %22, label %28, label %23

23:                                               ; preds = %5
  %24 = load i32, ptr %12, align 4, !tbaa !9
  %25 = icmp ne i32 %24, 0
  br i1 %25, label %28, label %26

26:                                               ; preds = %23
  %27 = load ptr, ptr %10, align 8, !tbaa !5
  store i32 -1, ptr %27, align 4, !tbaa !9
  br label %51

28:                                               ; preds = %23, %5
  %29 = load ptr, ptr %7, align 8, !tbaa !5
  %30 = load i32, ptr %29, align 4, !tbaa !9
  %31 = icmp slt i32 %30, 0
  br i1 %31, label %32, label %34

32:                                               ; preds = %28
  %33 = load ptr, ptr %10, align 8, !tbaa !5
  store i32 -2, ptr %33, align 4, !tbaa !9
  br label %50

34:                                               ; preds = %28
  %35 = load ptr, ptr %9, align 8, !tbaa !5
  %36 = load i32, ptr %35, align 4, !tbaa !9
  %37 = load ptr, ptr %7, align 8, !tbaa !5
  %38 = load i32, ptr %37, align 4, !tbaa !9
  %39 = icmp sgt i32 1, %38
  br i1 %39, label %40, label %41

40:                                               ; preds = %34
  br label %44

41:                                               ; preds = %34
  %42 = load ptr, ptr %7, align 8, !tbaa !5
  %43 = load i32, ptr %42, align 4, !tbaa !9
  br label %44

44:                                               ; preds = %41, %40
  %45 = phi i32 [ 1, %40 ], [ %43, %41 ]
  %46 = icmp slt i32 %36, %45
  br i1 %46, label %47, label %49

47:                                               ; preds = %44
  %48 = load ptr, ptr %10, align 8, !tbaa !5
  store i32 -4, ptr %48, align 4, !tbaa !9
  br label %49

49:                                               ; preds = %47, %44
  br label %50

50:                                               ; preds = %49, %32
  br label %51

51:                                               ; preds = %50, %26
  %52 = load ptr, ptr %10, align 8, !tbaa !5
  %53 = load i32, ptr %52, align 4, !tbaa !9
  %54 = icmp ne i32 %53, 0
  br i1 %54, label %55, label %60

55:                                               ; preds = %51
  call void @llvm.lifetime.start.p0(i64 4, ptr %13) #3
  %56 = load ptr, ptr %10, align 8, !tbaa !5
  %57 = load i32, ptr %56, align 4, !tbaa !9
  %58 = sub nsw i32 0, %57
  store i32 %58, ptr %13, align 4, !tbaa !9
  %59 = call i32 @xerbla_(ptr noundef @.str.2, ptr noundef %13, i32 noundef 6)
  store i32 1, ptr %14, align 4
  call void @llvm.lifetime.end.p0(i64 4, ptr %13) #3
  br label %70

60:                                               ; preds = %51
  call void @llvm.lifetime.start.p0(i64 1, ptr %15) #3
  %61 = load i32, ptr %11, align 4, !tbaa !9
  %62 = icmp ne i32 %61, 0
  %63 = zext i1 %62 to i64
  %64 = select i1 %62, i32 76, i32 85
  %65 = trunc i32 %64 to i8
  store i8 %65, ptr %15, align 1, !tbaa !11
  %66 = load ptr, ptr %7, align 8, !tbaa !5
  %67 = load ptr, ptr %8, align 8, !tbaa !5
  %68 = load ptr, ptr %9, align 8, !tbaa !5
  %69 = load ptr, ptr %10, align 8, !tbaa !5
  call void @RELAPACK_dlauum_rec(ptr noundef %15, ptr noundef %66, ptr noundef %67, ptr noundef %68, ptr noundef %69)
  call void @llvm.lifetime.end.p0(i64 1, ptr %15) #3
  store i32 0, ptr %14, align 4
  br label %70

70:                                               ; preds = %60, %55
  call void @llvm.lifetime.end.p0(i64 4, ptr %12) #3
  call void @llvm.lifetime.end.p0(i64 4, ptr %11) #3
  %71 = load i32, ptr %14, align 4
  switch i32 %71, label %73 [
    i32 0, label %72
    i32 1, label %72
  ]

72:                                               ; preds = %70, %70
  ret void

73:                                               ; preds = %70
  unreachable
}

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

declare i32 @lsame_(ptr noundef, ptr noundef) #2

declare i32 @xerbla_(ptr noundef, ptr noundef, i32 noundef) #2

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

; Function Attrs: nounwind uwtable
declare hidden void @RELAPACK_dlauum_rec(ptr noundef, ptr noundef, ptr noundef, ptr noundef, ptr noundef) #0

attributes #0 = { 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 #1 = { nocallback nofree nosync nounwind willreturn memory(argmem: readwrite) }
attributes #2 = { "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 = { 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/C++ TBAA"}
!9 = !{!10, !10, i64 0}
!10 = !{!"int", !7, i64 0}
!11 = !{!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"

@.str = external hidden unnamed_addr constant [2 x i8], align 1
@.str.1 = external hidden unnamed_addr constant [2 x i8], align 1
@.str.2 = external hidden unnamed_addr constant [7 x i8], align 1

; Function Attrs: nounwind uwtable
define dso_local void @RELAPACK_dlauum(ptr noundef %0, ptr noundef %1, ptr noundef %2, ptr noundef %3, ptr noundef %4) local_unnamed_addr #0 {
  %6 = alloca i32, align 4
  %7 = alloca i8, align 1
  %8 = tail call i32 @lsame_(ptr noundef %0, ptr noundef nonnull @.str) #4
  %9 = tail call i32 @lsame_(ptr noundef %0, ptr noundef nonnull @.str.1) #4
  store i32 0, ptr %4, align 4, !tbaa !5
  %10 = icmp ne i32 %8, 0
  %11 = icmp ne i32 %9, 0
  %or.cond = select i1 %10, i1 true, i1 %11
  br i1 %or.cond, label %12, label %.thread

12:                                               ; preds = %5
  %13 = load i32, ptr %1, align 4, !tbaa !5
  %14 = icmp slt i32 %13, 0
  br i1 %14, label %.thread, label %15

15:                                               ; preds = %12
  %16 = load i32, ptr %3, align 4, !tbaa !5
  %spec.select = tail call i32 @llvm.umax.i32(i32 %13, i32 1)
  %17 = icmp slt i32 %16, %spec.select
  br i1 %17, label %.thread, label %19

.thread:                                          ; preds = %15, %12, %5
  %.sink = phi i32 [ -1, %5 ], [ -2, %12 ], [ -4, %15 ]
  %.neg = phi i32 [ 1, %5 ], [ 2, %12 ], [ 4, %15 ]
  store i32 %.sink, ptr %4, align 4, !tbaa !5
  call void @llvm.lifetime.start.p0(i64 4, ptr nonnull %6) #4
  store i32 %.neg, ptr %6, align 4, !tbaa !5
  %18 = call i32 @xerbla_(ptr noundef nonnull @.str.2, ptr noundef nonnull %6, i32 noundef 6) #4
  call void @llvm.lifetime.end.p0(i64 4, ptr nonnull %6) #4
  br label %21

19:                                               ; preds = %15
  call void @llvm.lifetime.start.p0(i64 1, ptr nonnull %7) #4
  %20 = select i1 %10, i8 76, i8 85
  store i8 %20, ptr %7, align 1, !tbaa !9
  call void @RELAPACK_dlauum_rec(ptr noundef nonnull %7, ptr noundef nonnull %1, ptr noundef %2, ptr noundef nonnull %3, ptr noundef nonnull %4)
  call void @llvm.lifetime.end.p0(i64 1, ptr nonnull %7) #4
  br label %21

21:                                               ; preds = %19, %.thread
  ret void
}

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

declare i32 @lsame_(ptr noundef, ptr noundef) local_unnamed_addr #2

declare i32 @xerbla_(ptr noundef, ptr noundef, i32 noundef) local_unnamed_addr #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: nounwind uwtable
declare hidden void @RELAPACK_dlauum_rec(ptr noundef, ptr noundef, ptr noundef, ptr noundef, ptr noundef) local_unnamed_addr #0

; Function Attrs: nocallback nofree nosync nounwind speculatable willreturn memory(none)
declare i32 @llvm.umax.i32(i32, i32) #3

attributes #0 = { 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 #1 = { mustprogress nocallback nofree nosync nounwind willreturn memory(argmem: readwrite) }
attributes #2 = { "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 = { nocallback nofree nosync nounwind speculatable willreturn memory(none) }
attributes #4 = { 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 = !{!"int", !7, i64 0}
!7 = !{!"omnipotent char", !8, i64 0}
!8 = !{!"Simple C/C++ TBAA"}
!9 = !{!7, !7, i64 0}


; Effective O3 passes: CorrelatedValuePropagationPass,EarlyCSEPass,GVNPass,GlobalOptPass,IPSCCPPass,InferFunctionAttrsPass,InstCombinePass,JumpThreadingPass,SCCPPass,SROAPass,SimplifyCFGPass,TailCallElimPass