; LLVM IR from albertobsd/keyhunt :: secp256k1/Random.ll (Z7rk_seedmP9rk_state_)

; 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.rk_state_ = type { [624 x i64], i32 }

; Function Attrs: mustprogress nounwind uwtable
define dso_local void @_Z7rk_seedmP9rk_state_(i64 noundef %0, ptr noundef %1) #0 {
  %3 = alloca i64, align 8
  %4 = alloca ptr, align 8
  %5 = alloca i32, align 4
  store i64 %0, ptr %3, align 8, !tbaa !5
  store ptr %1, ptr %4, align 8, !tbaa !9
  call void @llvm.lifetime.start.p0(i64 4, ptr %5) #2
  %6 = load i64, ptr %3, align 8, !tbaa !5
  %7 = and i64 %6, 4294967295
  store i64 %7, ptr %3, align 8, !tbaa !5
  store i32 0, ptr %5, align 4, !tbaa !11
  br label %8

8:                                                ; preds = %28, %2
  %9 = load i32, ptr %5, align 4, !tbaa !11
  %10 = icmp slt i32 %9, 624
  br i1 %10, label %11, label %31

11:                                               ; preds = %8
  %12 = load i64, ptr %3, align 8, !tbaa !5
  %13 = load ptr, ptr %4, align 8, !tbaa !9
  %14 = getelementptr inbounds %struct.rk_state_, ptr %13, i32 0, i32 0
  %15 = load i32, ptr %5, align 4, !tbaa !11
  %16 = sext i32 %15 to i64
  %17 = getelementptr inbounds [624 x i64], ptr %14, i64 0, i64 %16
  store i64 %12, ptr %17, align 8, !tbaa !5
  %18 = load i64, ptr %3, align 8, !tbaa !5
  %19 = load i64, ptr %3, align 8, !tbaa !5
  %20 = lshr i64 %19, 30
  %21 = xor i64 %18, %20
  %22 = mul i64 1812433253, %21
  %23 = load i32, ptr %5, align 4, !tbaa !11
  %24 = sext i32 %23 to i64
  %25 = add i64 %22, %24
  %26 = add i64 %25, 1
  %27 = and i64 %26, 4294967295
  store i64 %27, ptr %3, align 8, !tbaa !5
  br label %28

28:                                               ; preds = %11
  %29 = load i32, ptr %5, align 4, !tbaa !11
  %30 = add nsw i32 %29, 1
  store i32 %30, ptr %5, align 4, !tbaa !11
  br label %8, !llvm.loop !13

31:                                               ; preds = %8
  %32 = load ptr, ptr %4, align 8, !tbaa !9
  %33 = getelementptr inbounds %struct.rk_state_, ptr %32, i32 0, i32 1
  store i32 624, ptr %33, align 8, !tbaa !15
  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.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", !7, i64 0}
!7 = !{!"omnipotent char", !8, i64 0}
!8 = !{!"Simple C++ TBAA"}
!9 = !{!10, !10, i64 0}
!10 = !{!"any pointer", !7, i64 0}
!11 = !{!12, !12, i64 0}
!12 = !{!"int", !7, i64 0}
!13 = distinct !{!13, !14}
!14 = !{!"llvm.loop.mustprogress"}
!15 = !{!16, !12, i64 4992}
!16 = !{!"_ZTS9rk_state_", !7, i64 0, !12, i64 4992}


; 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 memory(argmem: write) uwtable
define dso_local void @_Z7rk_seedmP9rk_state_(i64 noundef %0, ptr nocapture noundef writeonly %1) local_unnamed_addr #0 {
  br label %3

3:                                                ; preds = %3, %2
  %indvars.iv = phi i64 [ 0, %2 ], [ %20, %3 ]
  %.09.in10 = phi i64 [ %0, %2 ], [ %21, %3 ]
  %.09 = and i64 %.09.in10, 4294967295
  %4 = getelementptr inbounds [624 x i64], ptr %1, i64 0, i64 %indvars.iv
  store i64 %.09, ptr %4, align 8, !tbaa !5
  %5 = lshr i64 %.09, 30
  %6 = xor i64 %5, %.09.in10
  %7 = mul i64 %6, 1812433253
  %8 = add nuw nsw i64 %indvars.iv, 1
  %9 = add i64 %8, %7
  %.09.1 = and i64 %9, 4294967295
  %10 = getelementptr inbounds [624 x i64], ptr %1, i64 0, i64 %8
  store i64 %.09.1, ptr %10, align 8, !tbaa !5
  %11 = lshr i64 %.09.1, 30
  %12 = xor i64 %11, %9
  %13 = mul i64 %12, 1812433253
  %14 = add nuw nsw i64 %indvars.iv, 2
  %15 = add i64 %14, %13
  %.09.2 = and i64 %15, 4294967295
  %16 = getelementptr inbounds [624 x i64], ptr %1, i64 0, i64 %14
  store i64 %.09.2, ptr %16, align 8, !tbaa !5
  %17 = lshr i64 %.09.2, 30
  %18 = xor i64 %17, %.09.2
  %19 = mul nuw nsw i64 %18, 1812433253
  %20 = add nuw nsw i64 %indvars.iv, 3
  %21 = add nuw nsw i64 %20, %19
  %exitcond.not.2 = icmp eq i64 %20, 624
  br i1 %exitcond.not.2, label %22, label %3, !llvm.loop !9

22:                                               ; preds = %3
  %23 = getelementptr inbounds i8, ptr %1, i64 4992
  store i32 624, ptr %23, align 8, !tbaa !11
  ret void
}

attributes #0 = { mustprogress nofree norecurse nosync nounwind memory(argmem: write) 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 = !{!"long", !7, i64 0}
!7 = !{!"omnipotent char", !8, i64 0}
!8 = !{!"Simple C++ TBAA"}
!9 = distinct !{!9, !10}
!10 = !{!"llvm.loop.mustprogress"}
!11 = !{!12, !13, i64 4992}
!12 = !{!"_ZTS9rk_state_", !7, i64 0, !13, i64 4992}
!13 = !{!"int", !7, i64 0}


; Effective O3 passes: EarlyCSEPass,GVNPass,GlobalOptPass,IPSCCPPass,IndVarSimplifyPass,InferFunctionAttrsPass,InstCombinePass,LoopRotatePass,LoopUnrollPass,PostOrderFunctionAttrsPass,ReassociatePass,SROAPass,SimplifyCFGPass