; LLVM IR from ESPboy-edu/ESPboy_tinyphysicsengine :: programs (hello)

; 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.TPE_World = type { ptr, i16, ptr, ptr }
%struct.TPE_Body = type { ptr, i8, ptr, i8, i16, i16, i16, i8, i8 }

; 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 @TPE_bodyActivate(ptr noundef) #1

; Function Attrs: nounwind uwtable
define dso_local void @TPE_worldActivateAll(ptr noundef %0) #1 {
  %2 = alloca ptr, align 8
  %3 = alloca i16, align 2
  store ptr %0, ptr %2, align 8, !tbaa !5
  call void @llvm.lifetime.start.p0(i64 2, ptr %3) #2
  store i16 0, ptr %3, align 2, !tbaa !9
  br label %4

4:                                                ; preds = %20, %1
  %5 = load i16, ptr %3, align 2, !tbaa !9
  %6 = zext i16 %5 to i32
  %7 = load ptr, ptr %2, align 8, !tbaa !5
  %8 = getelementptr inbounds %struct.TPE_World, ptr %7, i32 0, i32 1
  %9 = load i16, ptr %8, align 8, !tbaa !11
  %10 = zext i16 %9 to i32
  %11 = icmp slt i32 %6, %10
  br i1 %11, label %13, label %12

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

13:                                               ; preds = %4
  %14 = load ptr, ptr %2, align 8, !tbaa !5
  %15 = getelementptr inbounds %struct.TPE_World, ptr %14, i32 0, i32 0
  %16 = load ptr, ptr %15, align 8, !tbaa !13
  %17 = load i16, ptr %3, align 2, !tbaa !9
  %18 = zext i16 %17 to i64
  %19 = getelementptr inbounds %struct.TPE_Body, ptr %16, i64 %18
  call void @TPE_bodyActivate(ptr noundef %19)
  br label %20

20:                                               ; preds = %13
  %21 = load i16, ptr %3, align 2, !tbaa !9
  %22 = add i16 %21, 1
  store i16 %22, ptr %3, align 2, !tbaa !9
  br label %4, !llvm.loop !14

23:                                               ; preds = %12
  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 = !{!"any pointer", !7, i64 0}
!7 = !{!"omnipotent char", !8, i64 0}
!8 = !{!"Simple C/C++ TBAA"}
!9 = !{!10, !10, i64 0}
!10 = !{!"short", !7, i64 0}
!11 = !{!12, !10, i64 8}
!12 = !{!"", !6, i64 0, !10, i64 8, !6, i64 16, !6, i64 24}
!13 = !{!12, !6, i64 0}
!14 = distinct !{!14, !15}
!15 = !{!"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.TPE_Body = type { ptr, i8, ptr, i8, i16, i16, i16, i8, i8 }

; Function Attrs: nounwind uwtable
declare dso_local void @TPE_bodyActivate(ptr noundef) local_unnamed_addr #0

; Function Attrs: nounwind uwtable
define dso_local void @TPE_worldActivateAll(ptr nocapture noundef readonly %0) local_unnamed_addr #0 {
  %2 = getelementptr inbounds i8, ptr %0, i64 8
  %3 = load i16, ptr %2, align 8, !tbaa !5
  %.not = icmp eq i16 %3, 0
  br i1 %.not, label %._crit_edge, label %.lr.ph

._crit_edge:                                      ; preds = %.lr.ph, %1
  ret void

.lr.ph:                                           ; preds = %1, %.lr.ph
  %indvars.iv = phi i64 [ %indvars.iv.next, %.lr.ph ], [ 0, %1 ]
  %4 = load ptr, ptr %0, align 8, !tbaa !11
  %5 = getelementptr inbounds %struct.TPE_Body, ptr %4, i64 %indvars.iv
  tail call void @TPE_bodyActivate(ptr noundef %5)
  %indvars.iv.next = add nuw nsw i64 %indvars.iv, 1
  %6 = load i16, ptr %2, align 8, !tbaa !5
  %7 = zext i16 %6 to i64
  %8 = icmp ult i64 %indvars.iv.next, %7
  br i1 %8, label %.lr.ph, label %._crit_edge, !llvm.loop !12
}

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, !10, i64 8}
!6 = !{!"", !7, i64 0, !10, i64 8, !7, i64 16, !7, i64 24}
!7 = !{!"any pointer", !8, i64 0}
!8 = !{!"omnipotent char", !9, i64 0}
!9 = !{!"Simple C/C++ TBAA"}
!10 = !{!"short", !8, i64 0}
!11 = !{!6, !7, i64 0}
!12 = distinct !{!12, !13}
!13 = !{!"llvm.loop.mustprogress"}


; Effective O3 passes: CorrelatedValuePropagationPass,EarlyCSEPass,GlobalOptPass,IndVarSimplifyPass,InferFunctionAttrsPass,InstCombinePass,JumpThreadingPass,LICMPass,LoopRotatePass,LoopSimplifyPass,LoopUnrollPass,PostOrderFunctionAttrsPass,SROAPass,SimplifyCFGPass,TailCallElimPass