; LLVM IR from zephyrproject-rtos/zephyr :: scripts/native_simulator/common/src (nsi_cpu_ctrl)

; 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"

@cpu_auto_start = external hidden global [1 x i8], align 1
@cpu_booted = external hidden global [1 x i8], align 1

; Function Attrs: nounwind uwtable
define dso_local void @nsi_cpu_auto_boot() #0 {
  %1 = alloca i32, align 4
  call void @llvm.lifetime.start.p0(i64 4, ptr %1) #3
  store i32 0, ptr %1, align 4, !tbaa !5
  br label %2

2:                                                ; preds = %20, %0
  %3 = load i32, ptr %1, align 4, !tbaa !5
  %4 = icmp slt i32 %3, 1
  br i1 %4, label %6, label %5

5:                                                ; preds = %2
  call void @llvm.lifetime.end.p0(i64 4, ptr %1) #3
  br label %23

6:                                                ; preds = %2
  %7 = load i32, ptr %1, align 4, !tbaa !5
  %8 = sext i32 %7 to i64
  %9 = getelementptr inbounds [1 x i8], ptr @cpu_auto_start, i64 0, i64 %8
  %10 = load i8, ptr %9, align 1, !tbaa !9, !range !11, !noundef !12
  %11 = trunc i8 %10 to i1
  %12 = zext i1 %11 to i32
  %13 = icmp eq i32 %12, 1
  br i1 %13, label %14, label %19

14:                                               ; preds = %6
  %15 = load i32, ptr %1, align 4, !tbaa !5
  %16 = sext i32 %15 to i64
  %17 = getelementptr inbounds [1 x i8], ptr @cpu_booted, i64 0, i64 %16
  store i8 1, ptr %17, align 1, !tbaa !9
  %18 = load i32, ptr %1, align 4, !tbaa !5
  call void @nsif_cpun_boot(i32 noundef %18)
  br label %19

19:                                               ; preds = %14, %6
  br label %20

20:                                               ; preds = %19
  %21 = load i32, ptr %1, align 4, !tbaa !5
  %22 = add nsw i32 %21, 1
  store i32 %22, ptr %1, align 4, !tbaa !5
  br label %2, !llvm.loop !13

23:                                               ; preds = %5
  ret void
}

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

declare void @nsif_cpun_boot(i32 noundef) #2

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

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" }
attributes #1 = { nocallback nofree nosync nounwind willreturn memory(argmem: readwrite) }
attributes #2 = { "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 #3 = { 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, !10, i64 0}
!10 = !{!"_Bool", !7, i64 0}
!11 = !{i8 0, i8 2}
!12 = !{}
!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"

@cpu_auto_start = external hidden local_unnamed_addr global [1 x i8], align 1
@cpu_booted = external hidden local_unnamed_addr global [1 x i8], align 1

; Function Attrs: nounwind uwtable
define dso_local void @nsi_cpu_auto_boot() local_unnamed_addr #0 {
.critedge:
  %0 = load i8, ptr @cpu_auto_start, align 1, !tbaa !5, !range !9, !noundef !10
  %1 = trunc nuw i8 %0 to i1
  br i1 %1, label %2, label %3

2:                                                ; preds = %.critedge
  store i8 1, ptr @cpu_booted, align 1, !tbaa !5
  tail call void @nsif_cpun_boot(i32 noundef 0) #2
  br label %3

3:                                                ; preds = %.critedge, %2
  ret void
}

declare void @nsif_cpun_boot(i32 noundef) local_unnamed_addr #1

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" }
attributes #1 = { "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 = !{!"_Bool", !7, i64 0}
!7 = !{!"omnipotent char", !8, i64 0}
!8 = !{!"Simple C/C++ TBAA"}
!9 = !{i8 0, i8 2}
!10 = !{}


; Effective O3 passes: EarlyCSEPass,GlobalOptPass,IPSCCPPass,InferFunctionAttrsPass,InstCombinePass,SROAPass,SimplifyCFGPass,TailCallElimPass