; LLVM IR from VastoLorde95/Competitive-Programming :: Hackerrank/Ad Infinitum/Ad Infinitum 13/Problem F/brute.ll (Z4evalx)

; 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"

@MOD = external dso_local global i64, align 8
@m = external dso_local global i32, align 4
@b = external dso_local global [210 x i32], align 16

; Function Attrs: mustprogress nounwind uwtable
define dso_local noundef i64 @_Z4evalx(i64 noundef %0) #0 {
  %2 = alloca i64, align 8
  %3 = alloca i64, align 8
  %4 = alloca i64, align 8
  %5 = alloca i32, align 4
  store i64 %0, ptr %2, align 8, !tbaa !5
  call void @llvm.lifetime.start.p0(i64 8, ptr %3) #2
  %6 = load i32, ptr @b, align 16, !tbaa !9
  %7 = sext i32 %6 to i64
  store i64 %7, ptr %3, align 8, !tbaa !5
  call void @llvm.lifetime.start.p0(i64 8, ptr %4) #2
  %8 = load i64, ptr %2, align 8, !tbaa !5
  store i64 %8, ptr %4, align 8, !tbaa !5
  call void @llvm.lifetime.start.p0(i64 4, ptr %5) #2
  store i32 1, ptr %5, align 4, !tbaa !9
  br label %9

9:                                                ; preds = %35, %1
  %10 = load i32, ptr %5, align 4, !tbaa !9
  %11 = load i32, ptr @m, align 4, !tbaa !9
  %12 = icmp slt i32 %10, %11
  br i1 %12, label %14, label %13

13:                                               ; preds = %9
  call void @llvm.lifetime.end.p0(i64 4, ptr %5) #2
  br label %38

14:                                               ; preds = %9
  %15 = load i64, ptr @MOD, align 8, !tbaa !5
  %16 = load i32, ptr %5, align 4, !tbaa !9
  %17 = sext i32 %16 to i64
  %18 = getelementptr inbounds [210 x i32], ptr @b, i64 0, i64 %17
  %19 = load i32, ptr %18, align 4, !tbaa !9
  %20 = sext i32 %19 to i64
  %21 = load i64, ptr %2, align 8, !tbaa !5
  %22 = mul nsw i64 %20, %21
  %23 = load i64, ptr @MOD, align 8, !tbaa !5
  %24 = srem i64 %22, %23
  %25 = add nsw i64 %15, %24
  %26 = load i64, ptr @MOD, align 8, !tbaa !5
  %27 = srem i64 %25, %26
  %28 = load i64, ptr %3, align 8, !tbaa !5
  %29 = add nsw i64 %28, %27
  store i64 %29, ptr %3, align 8, !tbaa !5
  %30 = load i64, ptr %2, align 8, !tbaa !5
  %31 = load i64, ptr %4, align 8, !tbaa !5
  %32 = mul nsw i64 %30, %31
  %33 = load i64, ptr @MOD, align 8, !tbaa !5
  %34 = srem i64 %32, %33
  store i64 %34, ptr %2, align 8, !tbaa !5
  br label %35

35:                                               ; preds = %14
  %36 = load i32, ptr %5, align 4, !tbaa !9
  %37 = add nsw i32 %36, 1
  store i32 %37, ptr %5, align 4, !tbaa !9
  br label %9, !llvm.loop !11

38:                                               ; preds = %13
  %39 = load i64, ptr %3, align 8, !tbaa !5
  call void @llvm.lifetime.end.p0(i64 8, ptr %4) #2
  call void @llvm.lifetime.end.p0(i64 8, ptr %3) #2
  ret i64 %39
}

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

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

attributes #0 = { 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 #1 = { nocallback nofree nosync nounwind willreturn memory(argmem: readwrite) }
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 = !{!"long long", !7, i64 0}
!7 = !{!"omnipotent char", !8, i64 0}
!8 = !{!"Simple C++ TBAA"}
!9 = !{!10, !10, i64 0}
!10 = !{!"int", !7, i64 0}
!11 = distinct !{!11, !12}
!12 = !{!"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"

@MOD = external dso_local local_unnamed_addr global i64, align 8
@m = external dso_local local_unnamed_addr global i32, align 4
@b = external dso_local local_unnamed_addr global [210 x i32], align 16

; Function Attrs: mustprogress nofree norecurse nosync nounwind willreturn memory(read, argmem: none, inaccessiblemem: none) uwtable
define dso_local noundef i64 @_Z4evalx(i64 noundef %0) local_unnamed_addr #0 {
  %2 = load i32, ptr @b, align 16, !tbaa !5
  %3 = sext i32 %2 to i64
  %4 = load i32, ptr @m, align 4, !tbaa !5
  %5 = icmp sgt i32 %4, 1
  br i1 %5, label %.lr.ph, label %._crit_edge

.lr.ph:                                           ; preds = %1
  %6 = load i64, ptr @MOD, align 8, !tbaa !9
  %wide.trip.count = zext nneg i32 %4 to i64
  br label %7

._crit_edge:                                      ; preds = %7, %1
  %.010.lcssa = phi i64 [ %3, %1 ], [ %15, %7 ]
  ret i64 %.010.lcssa

7:                                                ; preds = %.lr.ph, %7
  %indvars.iv = phi i64 [ 1, %.lr.ph ], [ %indvars.iv.next, %7 ]
  %.0912 = phi i64 [ %0, %.lr.ph ], [ %17, %7 ]
  %.01011 = phi i64 [ %3, %.lr.ph ], [ %15, %7 ]
  %8 = getelementptr inbounds [210 x i32], ptr @b, i64 0, i64 %indvars.iv
  %9 = load i32, ptr %8, align 4, !tbaa !5
  %10 = sext i32 %9 to i64
  %11 = mul nsw i64 %.0912, %10
  %12 = srem i64 %11, %6
  %13 = add nsw i64 %12, %6
  %14 = srem i64 %13, %6
  %15 = add nsw i64 %14, %.01011
  %16 = mul nsw i64 %.0912, %0
  %17 = srem i64 %16, %6
  %indvars.iv.next = add nuw nsw i64 %indvars.iv, 1
  %exitcond.not = icmp eq i64 %indvars.iv.next, %wide.trip.count
  br i1 %exitcond.not, label %._crit_edge, label %7, !llvm.loop !11
}

attributes #0 = { mustprogress nofree norecurse nosync nounwind willreturn memory(read, argmem: none, 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 = !{!"int", !7, i64 0}
!7 = !{!"omnipotent char", !8, i64 0}
!8 = !{!"Simple C++ TBAA"}
!9 = !{!10, !10, i64 0}
!10 = !{!"long long", !7, i64 0}
!11 = distinct !{!11, !12}
!12 = !{!"llvm.loop.mustprogress"}


; Effective O3 passes: EarlyCSEPass,GVNPass,GlobalOptPass,IndVarSimplifyPass,InferFunctionAttrsPass,InstCombinePass,InstSimplifyPass,JumpThreadingPass,LCSSAPass,LICMPass,LoopRotatePass,LoopSimplifyPass,LoopUnrollPass,PostOrderFunctionAttrsPass,ReassociatePass,SROAPass,SimplifyCFGPass