; LLVM IR from eclipse-threadx/threadx :: ports/cortex_a34/ac6/example_build/sample_threadx (GICv3_gicd)

; 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.GICv3_distributor = type { i32, i32, i32, i32, i32, [3 x i32], [8 x i32], i32, i32, i32, i32, i32, i32, i32, [3 x i32], i32, [5 x i32], [32 x i32], [32 x i32], [32 x i32], [32 x i32], [32 x i32], [32 x i32], [32 x i32], [1024 x i8], [1024 x i8], [64 x i32], [32 x i32], [32 x i32], [64 x i32], i32, [3 x i32], [4 x i32], [4 x i32], [52 x i32], [5120 x i32], [1024 x i64] }

@gicd = external hidden global %struct.GICv3_distributor, section ".bss.distributor", align 8

; 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 @SetSPISecurityBlock(i32 noundef, i32 noundef) #1

; Function Attrs: nounwind uwtable
define dso_local void @SetSPISecurityAll(i32 noundef %0) #1 {
  %2 = alloca i32, align 4
  %3 = alloca i32, align 4
  store i32 %0, ptr %2, align 4, !tbaa !5
  call void @llvm.lifetime.start.p0(i64 4, ptr %3) #2
  %4 = load volatile i32, ptr getelementptr inbounds (%struct.GICv3_distributor, ptr @gicd, i32 0, i32 1), align 4, !tbaa !9
  %5 = and i32 %4, 31
  store i32 %5, ptr %3, align 4, !tbaa !5
  br label %6

6:                                                ; preds = %12, %1
  %7 = load i32, ptr %3, align 4, !tbaa !5
  %8 = icmp ugt i32 %7, 0
  br i1 %8, label %9, label %15

9:                                                ; preds = %6
  %10 = load i32, ptr %3, align 4, !tbaa !5
  %11 = load i32, ptr %2, align 4, !tbaa !5
  call void @SetSPISecurityBlock(i32 noundef %10, i32 noundef %11)
  br label %12

12:                                               ; preds = %9
  %13 = load i32, ptr %3, align 4, !tbaa !5
  %14 = add i32 %13, -1
  store i32 %14, ptr %3, align 4, !tbaa !5
  br label %6, !llvm.loop !11

15:                                               ; preds = %6
  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 = !{!"int", !7, i64 0}
!7 = !{!"omnipotent char", !8, i64 0}
!8 = !{!"Simple C/C++ TBAA"}
!9 = !{!10, !6, i64 4}
!10 = !{!"", !6, i64 0, !6, i64 4, !6, i64 8, !6, i64 12, !6, i64 16, !7, i64 20, !7, i64 32, !6, i64 64, !6, i64 68, !6, i64 72, !6, i64 76, !6, i64 80, !6, i64 84, !6, i64 88, !7, i64 92, !6, i64 104, !7, i64 108, !7, i64 128, !7, i64 256, !7, i64 384, !7, i64 512, !7, i64 640, !7, i64 768, !7, i64 896, !7, i64 1024, !7, i64 2048, !7, i64 3072, !7, i64 3328, !7, i64 3456, !7, i64 3584, !6, i64 3840, !7, i64 3844, !7, i64 3856, !7, i64 3872, !7, i64 3888, !7, i64 4096, !7, i64 24576}
!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"

%struct.GICv3_distributor = type { i32, i32, i32, i32, i32, [3 x i32], [8 x i32], i32, i32, i32, i32, i32, i32, i32, [3 x i32], i32, [5 x i32], [32 x i32], [32 x i32], [32 x i32], [32 x i32], [32 x i32], [32 x i32], [32 x i32], [1024 x i8], [1024 x i8], [64 x i32], [32 x i32], [32 x i32], [64 x i32], i32, [3 x i32], [4 x i32], [4 x i32], [52 x i32], [5120 x i32], [1024 x i64] }

@gicd = external hidden global %struct.GICv3_distributor, section ".bss.distributor", align 8

; Function Attrs: nounwind uwtable
declare dso_local void @SetSPISecurityBlock(i32 noundef, i32 noundef) local_unnamed_addr #0

; Function Attrs: nounwind uwtable
define dso_local void @SetSPISecurityAll(i32 noundef %0) local_unnamed_addr #0 {
  %2 = load volatile i32, ptr getelementptr inbounds (i8, ptr @gicd, i64 4), align 4, !tbaa !5
  %3 = and i32 %2, 31
  %.not4 = icmp eq i32 %3, 0
  br i1 %.not4, label %._crit_edge, label %.lr.ph

.lr.ph:                                           ; preds = %1, %.lr.ph
  %.05 = phi i32 [ %4, %.lr.ph ], [ %3, %1 ]
  tail call void @SetSPISecurityBlock(i32 noundef %.05, i32 noundef %0)
  %4 = add nsw i32 %.05, -1
  %.not = icmp eq i32 %4, 0
  br i1 %.not, label %._crit_edge, label %.lr.ph, !llvm.loop !10

._crit_edge:                                      ; preds = %.lr.ph, %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 4}
!6 = !{!"", !7, i64 0, !7, i64 4, !7, i64 8, !7, i64 12, !7, i64 16, !8, i64 20, !8, i64 32, !7, i64 64, !7, i64 68, !7, i64 72, !7, i64 76, !7, i64 80, !7, i64 84, !7, i64 88, !8, i64 92, !7, i64 104, !8, i64 108, !8, i64 128, !8, i64 256, !8, i64 384, !8, i64 512, !8, i64 640, !8, i64 768, !8, i64 896, !8, i64 1024, !8, i64 2048, !8, i64 3072, !8, i64 3328, !8, i64 3456, !8, i64 3584, !7, i64 3840, !8, i64 3844, !8, i64 3856, !8, i64 3872, !8, i64 3888, !8, i64 4096, !8, i64 24576}
!7 = !{!"int", !8, i64 0}
!8 = !{!"omnipotent char", !9, i64 0}
!9 = !{!"Simple C/C++ TBAA"}
!10 = distinct !{!10, !11}
!11 = !{!"llvm.loop.mustprogress"}


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