; LLVM IR from FrancesoM/Bisc8FX :: sdk_projects/bisc8_platform/hw (ps7_init)

; 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: 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 @mask_poll(i64 noundef %0, i64 noundef %1) #1 {
  %3 = alloca i32, align 4
  %4 = alloca i64, align 8
  %5 = alloca i64, align 8
  %6 = alloca ptr, align 8
  %7 = alloca i32, align 4
  %8 = alloca i32, align 4
  store i64 %0, ptr %4, align 8, !tbaa !5
  store i64 %1, ptr %5, align 8, !tbaa !5
  call void @llvm.lifetime.start.p0(i64 8, ptr %6) #2
  %9 = load i64, ptr %4, align 8, !tbaa !5
  %10 = inttoptr i64 %9 to ptr
  store ptr %10, ptr %6, align 8, !tbaa !9
  call void @llvm.lifetime.start.p0(i64 4, ptr %7) #2
  store i32 0, ptr %7, align 4, !tbaa !11
  br label %11

11:                                               ; preds = %22, %2
  %12 = load ptr, ptr %6, align 8, !tbaa !9
  %13 = load volatile i64, ptr %12, align 8, !tbaa !5
  %14 = load i64, ptr %5, align 8, !tbaa !5
  %15 = and i64 %13, %14
  %16 = icmp ne i64 %15, 0
  %17 = xor i1 %16, true
  br i1 %17, label %18, label %25

18:                                               ; preds = %11
  %19 = load i32, ptr %7, align 4, !tbaa !11
  %20 = icmp eq i32 %19, 100000000
  br i1 %20, label %21, label %22

21:                                               ; preds = %18
  store i32 -1, ptr %3, align 4
  store i32 1, ptr %8, align 4
  br label %26

22:                                               ; preds = %18
  %23 = load i32, ptr %7, align 4, !tbaa !11
  %24 = add nsw i32 %23, 1
  store i32 %24, ptr %7, align 4, !tbaa !11
  br label %11, !llvm.loop !13

25:                                               ; preds = %11
  store i32 1, ptr %3, align 4
  store i32 1, ptr %8, align 4
  br label %26

26:                                               ; preds = %25, %21
  call void @llvm.lifetime.end.p0(i64 4, ptr %7) #2
  call void @llvm.lifetime.end.p0(i64 8, ptr %6) #2
  %27 = load i32, ptr %3, align 4
  ret i32 %27
}

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 = !{!"long", !7, i64 0}
!7 = !{!"omnipotent char", !8, i64 0}
!8 = !{!"Simple C/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"}


; 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 nounwind uwtable
define dso_local range(i32 -1, 2) i32 @mask_poll(i64 noundef %0, i64 noundef %1) local_unnamed_addr #0 {
  %3 = inttoptr i64 %0 to ptr
  %4 = load volatile i64, ptr %3, align 8, !tbaa !5
  %5 = and i64 %4, %1
  %.not6 = icmp eq i64 %5, 0
  br i1 %.not6, label %.lr.ph, label %._crit_edge

6:                                                ; preds = %.lr.ph
  %7 = load volatile i64, ptr %3, align 8, !tbaa !5
  %8 = and i64 %7, %1
  %.not = icmp eq i64 %8, 0
  br i1 %.not, label %.lr.ph.1, label %._crit_edge, !llvm.loop !9

.lr.ph.1:                                         ; preds = %6
  %9 = load volatile i64, ptr %3, align 8, !tbaa !5
  %10 = and i64 %9, %1
  %.not.1 = icmp eq i64 %10, 0
  br i1 %.not.1, label %.lr.ph.2, label %._crit_edge, !llvm.loop !9

.lr.ph.2:                                         ; preds = %.lr.ph.1
  %11 = load volatile i64, ptr %3, align 8, !tbaa !5
  %12 = and i64 %11, %1
  %.not.2 = icmp eq i64 %12, 0
  br i1 %.not.2, label %.lr.ph.3, label %._crit_edge, !llvm.loop !9

.lr.ph.3:                                         ; preds = %.lr.ph.2
  %13 = add nuw nsw i32 %.07, 4
  %14 = load volatile i64, ptr %3, align 8, !tbaa !5
  %15 = and i64 %14, %1
  %.not.3 = icmp eq i64 %15, 0
  br i1 %.not.3, label %.lr.ph, label %._crit_edge, !llvm.loop !9

.lr.ph:                                           ; preds = %2, %.lr.ph.3
  %.07 = phi i32 [ %13, %.lr.ph.3 ], [ 0, %2 ]
  %16 = icmp eq i32 %.07, 100000000
  br i1 %16, label %._crit_edge, label %6

._crit_edge:                                      ; preds = %.lr.ph, %6, %.lr.ph.1, %.lr.ph.2, %.lr.ph.3, %2
  %.05 = phi i32 [ 1, %2 ], [ 1, %6 ], [ -1, %.lr.ph ], [ 1, %.lr.ph.1 ], [ 1, %.lr.ph.2 ], [ 1, %.lr.ph.3 ]
  ret i32 %.05
}

attributes #0 = { nofree norecurse 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, !6, i64 0}
!6 = !{!"long", !7, i64 0}
!7 = !{!"omnipotent char", !8, i64 0}
!8 = !{!"Simple C/C++ TBAA"}
!9 = distinct !{!9, !10}
!10 = !{!"llvm.loop.mustprogress"}


; Effective O3 passes: GlobalOptPass,IPSCCPPass,InferFunctionAttrsPass,InstCombinePass,JumpThreadingPass,LoopRotatePass,LoopSimplifyPass,LoopUnrollPass,PostOrderFunctionAttrsPass,SROAPass,SimplifyCFGPass