; LLVM IR from jrl-umi3218/mc_rtc :: 3rd-party/qhull/src/libqhull (merge)

; 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.mergeT = type { double, double, ptr, ptr, ptr, ptr, ptr, ptr, i32 }

; 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: nounwind uwtable
define dso_local i32 @qh_compare_facetmerge(ptr noundef %0, ptr noundef %1) #1 {
  %3 = alloca i32, align 4
  %4 = alloca ptr, align 8
  %5 = alloca ptr, align 8
  %6 = alloca ptr, align 8
  %7 = alloca ptr, align 8
  %8 = alloca i32, align 4
  store ptr %0, ptr %4, align 8, !tbaa !5
  store ptr %1, ptr %5, align 8, !tbaa !5
  call void @llvm.lifetime.start.p0(i64 8, ptr %6) #2
  %9 = load ptr, ptr %4, align 8, !tbaa !5
  %10 = load ptr, ptr %9, align 8, !tbaa !5
  store ptr %10, ptr %6, align 8, !tbaa !5
  call void @llvm.lifetime.start.p0(i64 8, ptr %7) #2
  %11 = load ptr, ptr %5, align 8, !tbaa !5
  %12 = load ptr, ptr %11, align 8, !tbaa !5
  store ptr %12, ptr %7, align 8, !tbaa !5
  %13 = load ptr, ptr %6, align 8, !tbaa !5
  %14 = getelementptr inbounds %struct.mergeT, ptr %13, i32 0, i32 8
  %15 = load i32, ptr %14, align 8, !tbaa !9
  %16 = load ptr, ptr %7, align 8, !tbaa !5
  %17 = getelementptr inbounds %struct.mergeT, ptr %16, i32 0, i32 8
  %18 = load i32, ptr %17, align 8, !tbaa !9
  %19 = icmp ne i32 %15, %18
  br i1 %19, label %20, label %30

20:                                               ; preds = %2
  %21 = load ptr, ptr %6, align 8, !tbaa !5
  %22 = getelementptr inbounds %struct.mergeT, ptr %21, i32 0, i32 8
  %23 = load i32, ptr %22, align 8, !tbaa !9
  %24 = load ptr, ptr %7, align 8, !tbaa !5
  %25 = getelementptr inbounds %struct.mergeT, ptr %24, i32 0, i32 8
  %26 = load i32, ptr %25, align 8, !tbaa !9
  %27 = icmp ult i32 %23, %26
  %28 = zext i1 %27 to i64
  %29 = select i1 %27, i32 1, i32 -1
  store i32 %29, ptr %3, align 4
  store i32 1, ptr %8, align 4
  br label %55

30:                                               ; preds = %2
  %31 = load ptr, ptr %6, align 8, !tbaa !5
  %32 = getelementptr inbounds %struct.mergeT, ptr %31, i32 0, i32 8
  %33 = load i32, ptr %32, align 8, !tbaa !9
  %34 = icmp eq i32 %33, 2
  br i1 %34, label %35, label %45

35:                                               ; preds = %30
  %36 = load ptr, ptr %6, align 8, !tbaa !5
  %37 = getelementptr inbounds %struct.mergeT, ptr %36, i32 0, i32 0
  %38 = load double, ptr %37, align 8, !tbaa !13
  %39 = load ptr, ptr %7, align 8, !tbaa !5
  %40 = getelementptr inbounds %struct.mergeT, ptr %39, i32 0, i32 0
  %41 = load double, ptr %40, align 8, !tbaa !13
  %42 = fcmp ogt double %38, %41
  %43 = zext i1 %42 to i64
  %44 = select i1 %42, i32 1, i32 -1
  store i32 %44, ptr %3, align 4
  store i32 1, ptr %8, align 4
  br label %55

45:                                               ; preds = %30
  %46 = load ptr, ptr %6, align 8, !tbaa !5
  %47 = getelementptr inbounds %struct.mergeT, ptr %46, i32 0, i32 1
  %48 = load double, ptr %47, align 8, !tbaa !14
  %49 = load ptr, ptr %7, align 8, !tbaa !5
  %50 = getelementptr inbounds %struct.mergeT, ptr %49, i32 0, i32 1
  %51 = load double, ptr %50, align 8, !tbaa !14
  %52 = fcmp olt double %48, %51
  %53 = zext i1 %52 to i64
  %54 = select i1 %52, i32 1, i32 -1
  store i32 %54, ptr %3, align 4
  store i32 1, ptr %8, align 4
  br label %55

55:                                               ; preds = %45, %35, %20
  call void @llvm.lifetime.end.p0(i64 8, ptr %7) #2
  call void @llvm.lifetime.end.p0(i64 8, ptr %6) #2
  %56 = load i32, ptr %3, align 4
  ret i32 %56
}

attributes #0 = { nocallback nofree nosync nounwind willreturn memory(argmem: readwrite) }
attributes #1 = { 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/C++ TBAA"}
!9 = !{!10, !12, i64 64}
!10 = !{!"mergeT", !11, i64 0, !11, i64 8, !6, i64 16, !6, i64 24, !6, i64 32, !6, i64 40, !6, i64 48, !6, i64 56, !12, i64 64}
!11 = !{!"double", !7, i64 0}
!12 = !{!"int", !7, i64 0}
!13 = !{!10, !11, i64 0}
!14 = !{!10, !11, i64 8}


; 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(read, inaccessiblemem: none) uwtable
define dso_local range(i32 -1, 2) i32 @qh_compare_facetmerge(ptr nocapture noundef readonly %0, ptr nocapture noundef readonly %1) local_unnamed_addr #0 {
  %3 = load ptr, ptr %0, align 8, !tbaa !5
  %4 = load ptr, ptr %1, align 8, !tbaa !5
  %5 = getelementptr inbounds i8, ptr %3, i64 64
  %6 = load i32, ptr %5, align 8, !tbaa !9
  %7 = getelementptr inbounds i8, ptr %4, i64 64
  %8 = load i32, ptr %7, align 8, !tbaa !9
  %.not = icmp eq i32 %6, %8
  br i1 %.not, label %11, label %9

9:                                                ; preds = %2
  %10 = icmp ult i32 %6, %8
  br label %23

11:                                               ; preds = %2
  %12 = icmp eq i32 %6, 2
  br i1 %12, label %13, label %17

13:                                               ; preds = %11
  %14 = load double, ptr %3, align 8, !tbaa !13
  %15 = load double, ptr %4, align 8, !tbaa !13
  %16 = fcmp ogt double %14, %15
  br label %23

17:                                               ; preds = %11
  %18 = getelementptr inbounds i8, ptr %3, i64 8
  %19 = load double, ptr %18, align 8, !tbaa !14
  %20 = getelementptr inbounds i8, ptr %4, i64 8
  %21 = load double, ptr %20, align 8, !tbaa !14
  %22 = fcmp olt double %19, %21
  br label %23

23:                                               ; preds = %17, %13, %9
  %.sink = phi i1 [ %22, %17 ], [ %16, %13 ], [ %10, %9 ]
  %24 = select i1 %.sink, i32 1, i32 -1
  ret i32 %24
}

attributes #0 = { mustprogress nofree norecurse nosync 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" }

!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, !12, i64 64}
!10 = !{!"mergeT", !11, i64 0, !11, i64 8, !6, i64 16, !6, i64 24, !6, i64 32, !6, i64 40, !6, i64 48, !6, i64 56, !12, i64 64}
!11 = !{!"double", !7, i64 0}
!12 = !{!"int", !7, i64 0}
!13 = !{!10, !11, i64 0}
!14 = !{!10, !11, i64 8}


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