; LLVM IR from gem5/gem5 :: src/systemc/tests/systemc/misc/synth/directives/misc/test5/test.ll (ZN4test5entryEv)

; 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: mustprogress uwtable
define dso_local void @_ZN4test5entryEv(ptr noundef nonnull align 8 dereferenceable(528) %0) #0 align 2 {
  %2 = alloca ptr, align 8
  %3 = alloca i32, align 4
  %4 = alloca i32, align 4
  %5 = alloca i32, align 4
  %6 = alloca i32, align 4
  store ptr %0, ptr %2, align 8, !tbaa !5
  %7 = load ptr, ptr %2, align 8
  call void @llvm.lifetime.start.p0(i64 4, ptr %3) #3
  call void @llvm.lifetime.start.p0(i64 4, ptr %4) #3
  store i32 0, ptr %4, align 4, !tbaa !9
  call void @llvm.lifetime.start.p0(i64 4, ptr %5) #3
  store i32 0, ptr %5, align 4, !tbaa !9
  call void @llvm.lifetime.start.p0(i64 4, ptr %6) #3
  store i32 0, ptr %6, align 4, !tbaa !9
  store i32 0, ptr %3, align 4, !tbaa !9
  br label %8

8:                                                ; preds = %20, %1
  %9 = load i32, ptr %3, align 4, !tbaa !9
  %10 = icmp slt i32 %9, 7
  br i1 %10, label %11, label %23

11:                                               ; preds = %8
  %12 = load i32, ptr %6, align 4, !tbaa !9
  %13 = load i32, ptr %5, align 4, !tbaa !9
  %14 = add nsw i32 %12, %13
  store i32 %14, ptr %6, align 4, !tbaa !9
  %15 = load i32, ptr %6, align 4, !tbaa !9
  %16 = load i32, ptr %4, align 4, !tbaa !9
  %17 = add nsw i32 %15, %16
  store i32 %17, ptr %5, align 4, !tbaa !9
  %18 = load i32, ptr %6, align 4, !tbaa !9
  %19 = call noundef i32 @_Z6foobari(i32 noundef %18)
  store i32 %19, ptr %5, align 4, !tbaa !9
  call void @_ZN7sc_core9sc_module4waitEv(ptr noundef nonnull align 8 dereferenceable(232) %7)
  br label %20

20:                                               ; preds = %11
  %21 = load i32, ptr %3, align 4, !tbaa !9
  %22 = add nsw i32 %21, 1
  store i32 %22, ptr %3, align 4, !tbaa !9
  br label %8, !llvm.loop !11

23:                                               ; preds = %8
  call void @_ZN7sc_core9sc_module4waitEv(ptr noundef nonnull align 8 dereferenceable(232) %7)
  call void @llvm.lifetime.end.p0(i64 4, ptr %6) #3
  call void @llvm.lifetime.end.p0(i64 4, ptr %5) #3
  call void @llvm.lifetime.end.p0(i64 4, ptr %4) #3
  call void @llvm.lifetime.end.p0(i64 4, ptr %3) #3
  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: mustprogress nounwind uwtable
declare dso_local noundef i32 @_Z6foobari(i32 noundef) #2

; Function Attrs: mustprogress uwtable
declare dso_local void @_ZN7sc_core9sc_module4waitEv(ptr noundef nonnull align 8 dereferenceable(232)) #0 align 2

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

attributes #0 = { mustprogress 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 = { 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 #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 = !{!"any pointer", !7, i64 0}
!7 = !{!"omnipotent char", !8, i64 0}
!8 = !{!"Simple C++ TBAA"}
!9 = !{!10, !10, i64 0}
!10 = !{!"int", !7, i64 0}
!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"

; Function Attrs: mustprogress uwtable
define dso_local void @_ZN4test5entryEv(ptr noundef nonnull align 8 dereferenceable(528) %0) local_unnamed_addr #0 align 2 {
  %2 = tail call noundef i32 @_Z6foobari(i32 noundef 0)
  tail call void @_ZN7sc_core9sc_module4waitEv(ptr noundef nonnull align 8 dereferenceable(232) %0)
  %3 = tail call noundef i32 @_Z6foobari(i32 noundef %2)
  tail call void @_ZN7sc_core9sc_module4waitEv(ptr noundef nonnull align 8 dereferenceable(232) %0)
  %4 = add nsw i32 %2, %3
  %5 = tail call noundef i32 @_Z6foobari(i32 noundef %4)
  tail call void @_ZN7sc_core9sc_module4waitEv(ptr noundef nonnull align 8 dereferenceable(232) %0)
  %6 = add nsw i32 %4, %5
  %7 = tail call noundef i32 @_Z6foobari(i32 noundef %6)
  tail call void @_ZN7sc_core9sc_module4waitEv(ptr noundef nonnull align 8 dereferenceable(232) %0)
  %8 = add nsw i32 %6, %7
  %9 = tail call noundef i32 @_Z6foobari(i32 noundef %8)
  tail call void @_ZN7sc_core9sc_module4waitEv(ptr noundef nonnull align 8 dereferenceable(232) %0)
  %10 = add nsw i32 %8, %9
  %11 = tail call noundef i32 @_Z6foobari(i32 noundef %10)
  tail call void @_ZN7sc_core9sc_module4waitEv(ptr noundef nonnull align 8 dereferenceable(232) %0)
  %12 = add nsw i32 %10, %11
  %13 = tail call noundef i32 @_Z6foobari(i32 noundef %12)
  tail call void @_ZN7sc_core9sc_module4waitEv(ptr noundef nonnull align 8 dereferenceable(232) %0)
  tail call void @_ZN7sc_core9sc_module4waitEv(ptr noundef nonnull align 8 dereferenceable(232) %0)
  ret void
}

; Function Attrs: mustprogress nounwind uwtable
declare dso_local noundef i32 @_Z6foobari(i32 noundef) local_unnamed_addr #1

; Function Attrs: mustprogress uwtable
declare dso_local void @_ZN7sc_core9sc_module4waitEv(ptr noundef nonnull align 8 dereferenceable(232)) local_unnamed_addr #0 align 2

attributes #0 = { mustprogress 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 = { 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" }

!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)"}


; Effective O3 passes: EarlyCSEPass,GVNPass,GlobalOptPass,IndVarSimplifyPass,InferFunctionAttrsPass,InstCombinePass,LoopRotatePass,SROAPass,SimplifyCFGPass,TailCallElimPass