; LLVM IR from tum-i4/obfuscation-benchmarks :: tigress-generated-programs (RandomFunc)

; 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"

; Function Attrs: nocallback nofree nosync nounwind willreturn memory(argmem: readwrite)
declare void @llvm.lifetime.start.p0(i64 immarg, ptr nocapture) #0

; Function Attrs: nounwind uwtable
define dso_local void @RandomFunc(ptr noundef %0, ptr noundef %1) #1 {
  %3 = alloca ptr, align 8
  %4 = alloca ptr, align 8
  %5 = alloca [1 x i32], align 4
  %6 = alloca i32, align 4
  %7 = alloca i8, align 1
  store ptr %0, ptr %3, align 8, !tbaa !5
  store ptr %1, ptr %4, align 8, !tbaa !5
  call void @llvm.lifetime.start.p0(i64 4, ptr %5) #2
  call void @llvm.lifetime.start.p0(i64 4, ptr %6) #2
  call void @llvm.lifetime.start.p0(i64 1, ptr %7) #2
  %8 = load ptr, ptr %3, align 8, !tbaa !5
  %9 = getelementptr inbounds i32, ptr %8, i64 0
  %10 = load i32, ptr %9, align 4, !tbaa !9
  %11 = zext i32 %10 to i64
  %12 = sub i64 %11, 51238316
  %13 = sub i64 %12, 339126204
  %14 = trunc i64 %13 to i32
  %15 = getelementptr inbounds [1 x i32], ptr %5, i64 0, i64 0
  store i32 %14, ptr %15, align 4, !tbaa !9
  store i32 0, ptr %6, align 4, !tbaa !9
  br label %16

16:                                               ; preds = %22, %2
  %17 = load i32, ptr %6, align 4, !tbaa !9
  %18 = load ptr, ptr %3, align 8, !tbaa !5
  %19 = getelementptr inbounds i32, ptr %18, i64 1
  %20 = load i32, ptr %19, align 4, !tbaa !9
  %21 = icmp ult i32 %17, %20
  br i1 %21, label %22, label %36

22:                                               ; preds = %16
  %23 = getelementptr inbounds [1 x i32], ptr %5, i64 0, i64 0
  %24 = getelementptr inbounds i8, ptr %23, i64 1
  %25 = load i8, ptr %24, align 1, !tbaa !11
  store i8 %25, ptr %7, align 1, !tbaa !11
  %26 = getelementptr inbounds [1 x i32], ptr %5, i64 0, i64 0
  %27 = getelementptr inbounds i8, ptr %26, i64 3
  %28 = load i8, ptr %27, align 1, !tbaa !11
  %29 = getelementptr inbounds [1 x i32], ptr %5, i64 0, i64 0
  %30 = getelementptr inbounds i8, ptr %29, i64 1
  store i8 %28, ptr %30, align 1, !tbaa !11
  %31 = load i8, ptr %7, align 1, !tbaa !11
  %32 = getelementptr inbounds [1 x i32], ptr %5, i64 0, i64 0
  %33 = getelementptr inbounds i8, ptr %32, i64 3
  store i8 %31, ptr %33, align 1, !tbaa !11
  %34 = load i32, ptr %6, align 4, !tbaa !9
  %35 = add i32 %34, 1
  store i32 %35, ptr %6, align 4, !tbaa !9
  br label %16, !llvm.loop !12

36:                                               ; preds = %16
  %37 = getelementptr inbounds [1 x i32], ptr %5, i64 0, i64 0
  %38 = load i32, ptr %37, align 4, !tbaa !9
  %39 = shl i32 %38, 11
  %40 = getelementptr inbounds [1 x i32], ptr %5, i64 0, i64 0
  %41 = load i32, ptr %40, align 4, !tbaa !9
  %42 = lshr i32 %41, 21
  %43 = or i32 %39, %42
  %44 = shl i32 %43, 1
  %45 = getelementptr inbounds [1 x i32], ptr %5, i64 0, i64 0
  %46 = load i32, ptr %45, align 4, !tbaa !9
  %47 = shl i32 %46, 11
  %48 = getelementptr inbounds [1 x i32], ptr %5, i64 0, i64 0
  %49 = load i32, ptr %48, align 4, !tbaa !9
  %50 = lshr i32 %49, 21
  %51 = or i32 %47, %50
  %52 = lshr i32 %51, 31
  %53 = or i32 %44, %52
  %54 = load ptr, ptr %4, align 8, !tbaa !5
  %55 = getelementptr inbounds i32, ptr %54, i64 0
  store i32 %53, ptr %55, align 4, !tbaa !9
  call void @llvm.lifetime.end.p0(i64 1, ptr %7) #2
  call void @llvm.lifetime.end.p0(i64 4, ptr %6) #2
  call void @llvm.lifetime.end.p0(i64 4, ptr %5) #2
  ret void
}

; Function Attrs: nocallback nofree nosync nounwind willreturn memory(argmem: readwrite)
declare void @llvm.lifetime.end.p0(i64 immarg, ptr nocapture) #0

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 = !{!7, !7, i64 0}
!12 = distinct !{!12, !13}
!13 = !{!"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: nofree norecurse nosync nounwind memory(argmem: readwrite) uwtable
define dso_local void @RandomFunc(ptr nocapture noundef readonly %0, ptr nocapture noundef writeonly %1) local_unnamed_addr #0 {
  %3 = load i32, ptr %0, align 4, !tbaa !5
  %4 = add i32 %3, -390364520
  %.sroa.7.0.extract.shift = lshr i32 %4, 8
  %.sroa.7.0.extract.trunc = trunc i32 %.sroa.7.0.extract.shift to i8
  %.sroa.945.0.extract.shift = lshr i32 %4, 24
  %.sroa.945.0.extract.trunc = trunc nuw i32 %.sroa.945.0.extract.shift to i8
  %5 = getelementptr inbounds i8, ptr %0, i64 4
  %6 = load i32, ptr %5, align 4, !tbaa !5
  %7 = add i32 %6, 1
  %xtraiter = and i32 %7, 7
  %8 = icmp ult i32 %6, 7
  br i1 %8, label %.unr-lcssa, label %.new

.new:                                             ; preds = %2
  %unroll_iter = and i32 %7, -8
  br label %9

9:                                                ; preds = %9, %.new
  %niter = phi i32 [ 0, %.new ], [ %niter.next.7, %9 ]
  %niter.next.7 = add i32 %niter, 8
  %niter.ncmp.7 = icmp eq i32 %niter.next.7, %unroll_iter
  br i1 %niter.ncmp.7, label %.unr-lcssa, label %9, !llvm.loop !9

.unr-lcssa:                                       ; preds = %9, %2
  %lcmp.mod.not = icmp eq i32 %xtraiter, 0
  br i1 %lcmp.mod.not, label %.epilog-lcssa, label %.epil.preheader

.epil.preheader:                                  ; preds = %.unr-lcssa, %.epil.preheader
  %.sroa.7.0.epil = phi i8 [ %.sroa.945.0.epil, %.epil.preheader ], [ %.sroa.7.0.extract.trunc, %.unr-lcssa ]
  %.sroa.945.0.epil = phi i8 [ %.sroa.7.0.epil, %.epil.preheader ], [ %.sroa.945.0.extract.trunc, %.unr-lcssa ]
  %epil.iter = phi i32 [ %epil.iter.next, %.epil.preheader ], [ 0, %.unr-lcssa ]
  %epil.iter.next = add i32 %epil.iter, 1
  %epil.iter.cmp.not = icmp eq i32 %epil.iter.next, %xtraiter
  br i1 %epil.iter.cmp.not, label %.epilog-lcssa, label %.epil.preheader, !llvm.loop !11

.epilog-lcssa:                                    ; preds = %.epil.preheader, %.unr-lcssa
  %.sroa.7.0.lcssa = phi i8 [ %.sroa.945.0.extract.trunc, %.unr-lcssa ], [ %.sroa.7.0.epil, %.epil.preheader ]
  %.sroa.945.0.lcssa = phi i8 [ %.sroa.7.0.extract.trunc, %.unr-lcssa ], [ %.sroa.945.0.epil, %.epil.preheader ]
  %.sroa.945.0.insert.ext = zext i8 %.sroa.945.0.lcssa to i32
  %.sroa.945.0.insert.shift = shl nuw i32 %.sroa.945.0.insert.ext, 24
  %.sroa.9.0.insert.ext = and i32 %4, 16711680
  %.sroa.9.0.insert.insert = or disjoint i32 %.sroa.945.0.insert.shift, %.sroa.9.0.insert.ext
  %.sroa.7.0.insert.ext = zext i8 %.sroa.7.0.lcssa to i32
  %.sroa.7.0.insert.shift = shl nuw nsw i32 %.sroa.7.0.insert.ext, 8
  %.sroa.7.0.insert.insert = or disjoint i32 %.sroa.9.0.insert.insert, %.sroa.7.0.insert.shift
  %.sroa.0.0.insert.ext = and i32 %4, 255
  %.sroa.0.0.insert.insert = or disjoint i32 %.sroa.7.0.insert.insert, %.sroa.0.0.insert.ext
  %10 = tail call i32 @llvm.fshl.i32(i32 %.sroa.0.0.insert.insert, i32 %.sroa.0.0.insert.insert, i32 11)
  %11 = tail call i32 @llvm.fshl.i32(i32 %10, i32 %10, i32 1)
  store i32 %11, ptr %1, align 4, !tbaa !5
  ret void
}

; Function Attrs: nocallback nofree nosync nounwind speculatable willreturn memory(none)
declare i32 @llvm.fshl.i32(i32, i32, i32) #1

attributes #0 = { nofree norecurse nosync nounwind memory(argmem: readwrite) 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 speculatable willreturn memory(none) }

!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 = distinct !{!9, !10}
!10 = !{!"llvm.loop.mustprogress"}
!11 = distinct !{!11, !12}
!12 = !{!"llvm.loop.unroll.disable"}


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