; LLVM IR from MostafaTwfiq/C-DataStructures-And-Algorithms :: Unit Test/CuTest (CuTest)

; 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.CuSuite = type { i32, [1024 x ptr], i32 }
%struct.CuTest = type { ptr, ptr, i32, i32, ptr, 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: nounwind uwtable
declare dso_local void @CuTestRun(ptr noundef) #1

; Function Attrs: nounwind uwtable
define dso_local void @CuSuiteRun(ptr noundef %0) #1 {
  %2 = alloca ptr, align 8
  %3 = alloca i32, align 4
  %4 = alloca ptr, align 8
  store ptr %0, ptr %2, align 8, !tbaa !5
  call void @llvm.lifetime.start.p0(i64 4, ptr %3) #2
  store i32 0, ptr %3, align 4, !tbaa !9
  br label %5

5:                                                ; preds = %29, %1
  %6 = load i32, ptr %3, align 4, !tbaa !9
  %7 = load ptr, ptr %2, align 8, !tbaa !5
  %8 = getelementptr inbounds %struct.CuSuite, ptr %7, i32 0, i32 0
  %9 = load i32, ptr %8, align 8, !tbaa !11
  %10 = icmp slt i32 %6, %9
  br i1 %10, label %11, label %32

11:                                               ; preds = %5
  call void @llvm.lifetime.start.p0(i64 8, ptr %4) #2
  %12 = load ptr, ptr %2, align 8, !tbaa !5
  %13 = getelementptr inbounds %struct.CuSuite, ptr %12, i32 0, i32 1
  %14 = load i32, ptr %3, align 4, !tbaa !9
  %15 = sext i32 %14 to i64
  %16 = getelementptr inbounds [1024 x ptr], ptr %13, i64 0, i64 %15
  %17 = load ptr, ptr %16, align 8, !tbaa !5
  store ptr %17, ptr %4, align 8, !tbaa !5
  %18 = load ptr, ptr %4, align 8, !tbaa !5
  call void @CuTestRun(ptr noundef %18)
  %19 = load ptr, ptr %4, align 8, !tbaa !5
  %20 = getelementptr inbounds %struct.CuTest, ptr %19, i32 0, i32 2
  %21 = load i32, ptr %20, align 8, !tbaa !13
  %22 = icmp ne i32 %21, 0
  br i1 %22, label %23, label %28

23:                                               ; preds = %11
  %24 = load ptr, ptr %2, align 8, !tbaa !5
  %25 = getelementptr inbounds %struct.CuSuite, ptr %24, i32 0, i32 2
  %26 = load i32, ptr %25, align 8, !tbaa !15
  %27 = add nsw i32 %26, 1
  store i32 %27, ptr %25, align 8, !tbaa !15
  br label %28

28:                                               ; preds = %23, %11
  call void @llvm.lifetime.end.p0(i64 8, ptr %4) #2
  br label %29

29:                                               ; preds = %28
  %30 = load i32, ptr %3, align 4, !tbaa !9
  %31 = add nsw i32 %30, 1
  store i32 %31, ptr %3, align 4, !tbaa !9
  br label %5, !llvm.loop !16

32:                                               ; preds = %5
  call void @llvm.lifetime.end.p0(i64 4, ptr %3) #2
  ret void
}

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, !10, i64 0}
!10 = !{!"int", !7, i64 0}
!11 = !{!12, !10, i64 0}
!12 = !{!"", !10, i64 0, !7, i64 8, !10, i64 8200}
!13 = !{!14, !10, i64 16}
!14 = !{!"CuTest", !6, i64 0, !6, i64 8, !10, i64 16, !10, i64 20, !6, i64 24, !6, i64 32}
!15 = !{!12, !10, i64 8200}
!16 = distinct !{!16, !17}
!17 = !{!"llvm.loop.mustprogress"}


; 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: nounwind uwtable
declare dso_local void @CuTestRun(ptr noundef) local_unnamed_addr #0

; Function Attrs: nounwind uwtable
define dso_local void @CuSuiteRun(ptr nocapture noundef %0) local_unnamed_addr #0 {
  %2 = load i32, ptr %0, align 8, !tbaa !5
  %3 = icmp sgt i32 %2, 0
  br i1 %3, label %.lr.ph, label %._crit_edge

.lr.ph:                                           ; preds = %1
  %4 = getelementptr inbounds i8, ptr %0, i64 8
  %5 = getelementptr inbounds i8, ptr %0, i64 8200
  br label %6

6:                                                ; preds = %.lr.ph, %14
  %indvars.iv = phi i64 [ 0, %.lr.ph ], [ %indvars.iv.next, %14 ]
  %7 = getelementptr inbounds [1024 x ptr], ptr %4, i64 0, i64 %indvars.iv
  %8 = load ptr, ptr %7, align 8, !tbaa !10
  tail call void @CuTestRun(ptr noundef %8)
  %9 = getelementptr inbounds i8, ptr %8, i64 16
  %10 = load i32, ptr %9, align 8, !tbaa !12
  %.not = icmp eq i32 %10, 0
  br i1 %.not, label %14, label %11

11:                                               ; preds = %6
  %12 = load i32, ptr %5, align 8, !tbaa !14
  %13 = add nsw i32 %12, 1
  store i32 %13, ptr %5, align 8, !tbaa !14
  br label %14

14:                                               ; preds = %11, %6
  %indvars.iv.next = add nuw nsw i64 %indvars.iv, 1
  %15 = load i32, ptr %0, align 8, !tbaa !5
  %16 = sext i32 %15 to i64
  %17 = icmp slt i64 %indvars.iv.next, %16
  br i1 %17, label %6, label %._crit_edge, !llvm.loop !15

._crit_edge:                                      ; preds = %14, %1
  ret void
}

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" }

!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, !8, i64 8, !7, i64 8200}
!7 = !{!"int", !8, i64 0}
!8 = !{!"omnipotent char", !9, i64 0}
!9 = !{!"Simple C/C++ TBAA"}
!10 = !{!11, !11, i64 0}
!11 = !{!"any pointer", !8, i64 0}
!12 = !{!13, !7, i64 16}
!13 = !{!"CuTest", !11, i64 0, !11, i64 8, !7, i64 16, !7, i64 20, !11, i64 24, !11, i64 32}
!14 = !{!6, !7, i64 8200}
!15 = distinct !{!15, !16}
!16 = !{!"llvm.loop.mustprogress"}


; Effective O3 passes: EarlyCSEPass,GlobalOptPass,IndVarSimplifyPass,InferFunctionAttrsPass,InstCombinePass,JumpThreadingPass,LICMPass,LoopRotatePass,LoopSimplifyPass,LoopUnrollPass,PostOrderFunctionAttrsPass,SROAPass,SimplifyCFGPass,TailCallElimPass