; LLVM IR from YanzhenHuang/c-nn :: xlinalg (xmat_isEqual)

; 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.Matrix = type { i64, i64, ptr }

; Function Attrs: nounwind uwtable
define dso_local zeroext i1 @xmat_isEqual(ptr noundef %0, ptr noundef %1) #0 {
  %3 = alloca i1, align 1
  %4 = alloca ptr, align 8
  %5 = alloca ptr, align 8
  store ptr %0, ptr %4, align 8, !tbaa !5
  store ptr %1, ptr %5, align 8, !tbaa !5
  %6 = load ptr, ptr %4, align 8, !tbaa !5
  %7 = getelementptr inbounds %struct.Matrix, ptr %6, i32 0, i32 0
  %8 = load i64, ptr %7, align 8, !tbaa !9
  %9 = load ptr, ptr %5, align 8, !tbaa !5
  %10 = getelementptr inbounds %struct.Matrix, ptr %9, i32 0, i32 0
  %11 = load i64, ptr %10, align 8, !tbaa !9
  %12 = icmp ne i64 %8, %11
  br i1 %12, label %21, label %13

13:                                               ; preds = %2
  %14 = load ptr, ptr %4, align 8, !tbaa !5
  %15 = getelementptr inbounds %struct.Matrix, ptr %14, i32 0, i32 1
  %16 = load i64, ptr %15, align 8, !tbaa !12
  %17 = load ptr, ptr %5, align 8, !tbaa !5
  %18 = getelementptr inbounds %struct.Matrix, ptr %17, i32 0, i32 1
  %19 = load i64, ptr %18, align 8, !tbaa !12
  %20 = icmp ne i64 %16, %19
  br i1 %20, label %21, label %22

21:                                               ; preds = %13, %2
  store i1 false, ptr %3, align 1
  br label %39

22:                                               ; preds = %13
  %23 = load ptr, ptr %4, align 8, !tbaa !5
  %24 = getelementptr inbounds %struct.Matrix, ptr %23, i32 0, i32 2
  %25 = load ptr, ptr %24, align 8, !tbaa !13
  %26 = load ptr, ptr %5, align 8, !tbaa !5
  %27 = getelementptr inbounds %struct.Matrix, ptr %26, i32 0, i32 2
  %28 = load ptr, ptr %27, align 8, !tbaa !13
  %29 = load ptr, ptr %4, align 8, !tbaa !5
  %30 = getelementptr inbounds %struct.Matrix, ptr %29, i32 0, i32 0
  %31 = load i64, ptr %30, align 8, !tbaa !9
  %32 = load ptr, ptr %4, align 8, !tbaa !5
  %33 = getelementptr inbounds %struct.Matrix, ptr %32, i32 0, i32 1
  %34 = load i64, ptr %33, align 8, !tbaa !12
  %35 = mul nsw i64 %31, %34
  %36 = mul i64 %35, 8
  %37 = call i32 @memcmp(ptr noundef %25, ptr noundef %28, i64 noundef %36) #2
  %38 = icmp eq i32 %37, 0
  store i1 %38, ptr %3, align 1
  br label %39

39:                                               ; preds = %22, %21
  %40 = load i1, ptr %3, align 1
  ret i1 %40
}

; Function Attrs: nounwind willreturn memory(read)
declare i32 @memcmp(ptr noundef, ptr noundef, i64 noundef) #1

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 = { nounwind willreturn memory(read) "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 willreturn memory(read) }

!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, !11, i64 0}
!10 = !{!"", !11, i64 0, !11, i64 8, !6, i64 16}
!11 = !{!"long long", !7, i64 0}
!12 = !{!10, !11, i64 8}
!13 = !{!10, !6, i64 16}


; 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 nounwind willreturn memory(read, inaccessiblemem: none) uwtable
define dso_local zeroext i1 @xmat_isEqual(ptr nocapture noundef readonly %0, ptr nocapture noundef readonly %1) local_unnamed_addr #0 {
  %3 = load i64, ptr %0, align 8, !tbaa !5
  %4 = load i64, ptr %1, align 8, !tbaa !5
  %.not = icmp eq i64 %3, %4
  br i1 %.not, label %5, label %18

5:                                                ; preds = %2
  %6 = getelementptr inbounds i8, ptr %0, i64 8
  %7 = load i64, ptr %6, align 8, !tbaa !11
  %8 = getelementptr inbounds i8, ptr %1, i64 8
  %9 = load i64, ptr %8, align 8, !tbaa !11
  %.not11 = icmp eq i64 %7, %9
  br i1 %.not11, label %10, label %18

10:                                               ; preds = %5
  %11 = getelementptr inbounds i8, ptr %0, i64 16
  %12 = load ptr, ptr %11, align 8, !tbaa !12
  %13 = getelementptr inbounds i8, ptr %1, i64 16
  %14 = load ptr, ptr %13, align 8, !tbaa !12
  %15 = shl i64 %3, 3
  %16 = mul i64 %15, %7
  %bcmp = tail call i32 @bcmp(ptr %12, ptr %14, i64 %16)
  %17 = icmp eq i32 %bcmp, 0
  br label %18

18:                                               ; preds = %2, %5, %10
  %.0 = phi i1 [ %17, %10 ], [ false, %5 ], [ false, %2 ]
  ret i1 %.0
}

; Function Attrs: nofree nounwind willreturn memory(argmem: read)
declare i32 @bcmp(ptr nocapture, ptr nocapture, i64) local_unnamed_addr #1

attributes #0 = { mustprogress nofree nounwind willreturn memory(read, inaccessiblemem: none) 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 = { nofree nounwind willreturn memory(argmem: read) }

!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 = !{!"", !7, i64 0, !7, i64 8, !10, i64 16}
!7 = !{!"long long", !8, i64 0}
!8 = !{!"omnipotent char", !9, i64 0}
!9 = !{!"Simple C/C++ TBAA"}
!10 = !{!"any pointer", !8, i64 0}
!11 = !{!6, !7, i64 8}
!12 = !{!6, !10, i64 16}


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