; LLVM IR from alekras/ao.rtos.cpp :: Library/Display/display.ll (ZN7Display7sprintfEPcPKcz)

; 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.__va_list_tag = type { i32, i32, ptr, ptr }
%class.FormatParser = type { %class.Fsm, ptr, ptr, i32, i32, [1 x %struct.__va_list_tag] }
%class.Fsm = type { { i64, i64 } }

; 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: nocallback nofree nosync nounwind willreturn
declare void @llvm.va_start.p0(ptr) #1

; Function Attrs: mustprogress uwtable
declare dso_local void @_ZN12FormatParserC2EPcP13__va_list_tag(ptr noundef nonnull align 8 dereferenceable(64), ptr noundef, ptr noundef) unnamed_addr #2 align 2

; Function Attrs: mustprogress uwtable
declare dso_local noundef i32 @_ZN3FsmIKcE4initEv(ptr noundef nonnull align 8 dereferenceable(16)) #2 align 2

; Function Attrs: mustprogress nounwind uwtable
declare dso_local noundef i32 @_ZN12FormatParser8isFinishEv(ptr noundef nonnull align 8 dereferenceable(64)) #3 align 2

; Function Attrs: mustprogress nounwind uwtable
declare dso_local noundef i32 @_ZN12FormatParser7isErrorEv(ptr noundef nonnull align 8 dereferenceable(64)) #3 align 2

; Function Attrs: mustprogress uwtable
declare dso_local noundef i32 @_ZN3FsmIKcE8dispatchEPS0_(ptr noundef nonnull align 8 dereferenceable(16), ptr noundef) #2 align 2

; Function Attrs: nocallback nofree nosync nounwind willreturn
declare void @llvm.va_end.p0(ptr) #1

; Function Attrs: mustprogress uwtable
define dso_local void @_ZN7Display7sprintfEPcPKcz(ptr noundef %0, ptr noundef %1, ...) #2 align 2 {
  %3 = alloca ptr, align 8
  %4 = alloca ptr, align 8
  %5 = alloca [1 x %struct.__va_list_tag], align 16
  %6 = alloca %class.FormatParser, align 8
  store ptr %0, ptr %3, align 8, !tbaa !5
  store ptr %1, ptr %4, align 8, !tbaa !5
  call void @llvm.lifetime.start.p0(i64 24, ptr %5) #4
  %7 = getelementptr inbounds [1 x %struct.__va_list_tag], ptr %5, i64 0, i64 0
  call void @llvm.va_start.p0(ptr %7)
  call void @llvm.lifetime.start.p0(i64 64, ptr %6) #4
  %8 = load ptr, ptr %3, align 8, !tbaa !5
  %9 = getelementptr inbounds [1 x %struct.__va_list_tag], ptr %5, i64 0, i64 0
  call void @_ZN12FormatParserC2EPcP13__va_list_tag(ptr noundef nonnull align 8 dereferenceable(64) %6, ptr noundef %8, ptr noundef %9)
  %10 = call noundef i32 @_ZN3FsmIKcE4initEv(ptr noundef nonnull align 8 dereferenceable(16) %6)
  br label %11

11:                                               ; preds = %20, %2
  %12 = call noundef i32 @_ZN12FormatParser8isFinishEv(ptr noundef nonnull align 8 dereferenceable(64) %6)
  %13 = icmp ne i32 %12, 0
  br i1 %13, label %18, label %14

14:                                               ; preds = %11
  %15 = call noundef i32 @_ZN12FormatParser7isErrorEv(ptr noundef nonnull align 8 dereferenceable(64) %6)
  %16 = icmp ne i32 %15, 0
  %17 = xor i1 %16, true
  br label %18

18:                                               ; preds = %14, %11
  %19 = phi i1 [ false, %11 ], [ %17, %14 ]
  br i1 %19, label %20, label %24

20:                                               ; preds = %18
  %21 = load ptr, ptr %4, align 8, !tbaa !5
  %22 = getelementptr inbounds i8, ptr %21, i32 1
  store ptr %22, ptr %4, align 8, !tbaa !5
  %23 = call noundef i32 @_ZN3FsmIKcE8dispatchEPS0_(ptr noundef nonnull align 8 dereferenceable(16) %6, ptr noundef %21)
  br label %11, !llvm.loop !9

24:                                               ; preds = %18
  %25 = getelementptr inbounds [1 x %struct.__va_list_tag], ptr %5, i64 0, i64 0
  call void @llvm.va_end.p0(ptr %25)
  call void @llvm.lifetime.end.p0(i64 64, ptr %6) #4
  call void @llvm.lifetime.end.p0(i64 24, ptr %5) #4
  ret void
}

attributes #0 = { nocallback nofree nosync nounwind willreturn memory(argmem: readwrite) }
attributes #1 = { nocallback nofree nosync nounwind willreturn }
attributes #2 = { 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 #3 = { 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 #4 = { 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 = distinct !{!9, !10}
!10 = !{!"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.__va_list_tag = type { i32, i32, ptr, ptr }
%class.FormatParser = type { %class.Fsm, ptr, ptr, i32, i32, [1 x %struct.__va_list_tag] }
%class.Fsm = type { { i64, i64 } }

; Function Attrs: mustprogress nocallback nofree nosync nounwind willreturn memory(argmem: readwrite)
declare void @llvm.lifetime.start.p0(i64 immarg, ptr nocapture) #0

; Function Attrs: mustprogress nocallback nofree nosync nounwind willreturn memory(argmem: readwrite)
declare void @llvm.lifetime.end.p0(i64 immarg, ptr nocapture) #0

; Function Attrs: mustprogress nocallback nofree nosync nounwind willreturn
declare void @llvm.va_start.p0(ptr) #1

; Function Attrs: mustprogress uwtable
declare dso_local void @_ZN12FormatParserC2EPcP13__va_list_tag(ptr noundef nonnull align 8 dereferenceable(64), ptr noundef, ptr noundef) unnamed_addr #2 align 2

; Function Attrs: mustprogress uwtable
declare dso_local noundef i32 @_ZN3FsmIKcE4initEv(ptr noundef nonnull align 8 dereferenceable(16)) local_unnamed_addr #2 align 2

; Function Attrs: mustprogress nounwind uwtable
declare dso_local noundef i32 @_ZN12FormatParser8isFinishEv(ptr noundef nonnull align 8 dereferenceable(64)) local_unnamed_addr #3 align 2

; Function Attrs: mustprogress nounwind uwtable
declare dso_local noundef i32 @_ZN12FormatParser7isErrorEv(ptr noundef nonnull align 8 dereferenceable(64)) local_unnamed_addr #3 align 2

; Function Attrs: mustprogress uwtable
declare dso_local noundef i32 @_ZN3FsmIKcE8dispatchEPS0_(ptr noundef nonnull align 8 dereferenceable(16), ptr noundef) local_unnamed_addr #2 align 2

; Function Attrs: mustprogress nocallback nofree nosync nounwind willreturn
declare void @llvm.va_end.p0(ptr) #1

; Function Attrs: mustprogress uwtable
define dso_local void @_ZN7Display7sprintfEPcPKcz(ptr noundef %0, ptr noundef %1, ...) local_unnamed_addr #2 align 2 {
  %3 = alloca [1 x %struct.__va_list_tag], align 16
  %4 = alloca %class.FormatParser, align 8
  call void @llvm.lifetime.start.p0(i64 24, ptr nonnull %3) #4
  call void @llvm.va_start.p0(ptr nonnull %3)
  call void @llvm.lifetime.start.p0(i64 64, ptr nonnull %4) #4
  call void @_ZN12FormatParserC2EPcP13__va_list_tag(ptr noundef nonnull align 8 dereferenceable(64) %4, ptr noundef %0, ptr noundef nonnull %3)
  %5 = call noundef i32 @_ZN3FsmIKcE4initEv(ptr noundef nonnull align 8 dereferenceable(16) %4)
  %6 = call noundef i32 @_ZN12FormatParser8isFinishEv(ptr noundef nonnull align 8 dereferenceable(64) %4)
  %.not3 = icmp eq i32 %6, 0
  br i1 %.not3, label %.lr.ph, label %.critedge

.lr.ph:                                           ; preds = %2, %8
  %.04 = phi ptr [ %9, %8 ], [ %1, %2 ]
  %7 = call noundef i32 @_ZN12FormatParser7isErrorEv(ptr noundef nonnull align 8 dereferenceable(64) %4)
  %.not2 = icmp eq i32 %7, 0
  br i1 %.not2, label %8, label %.critedge

8:                                                ; preds = %.lr.ph
  %9 = getelementptr inbounds i8, ptr %.04, i64 1
  %10 = call noundef i32 @_ZN3FsmIKcE8dispatchEPS0_(ptr noundef nonnull align 8 dereferenceable(16) %4, ptr noundef %.04)
  %11 = call noundef i32 @_ZN12FormatParser8isFinishEv(ptr noundef nonnull align 8 dereferenceable(64) %4)
  %.not = icmp eq i32 %11, 0
  br i1 %.not, label %.lr.ph, label %.critedge, !llvm.loop !5

.critedge:                                        ; preds = %.lr.ph, %8, %2
  call void @llvm.va_end.p0(ptr nonnull %3)
  call void @llvm.lifetime.end.p0(i64 64, ptr nonnull %4) #4
  call void @llvm.lifetime.end.p0(i64 24, ptr nonnull %3) #4
  ret void
}

attributes #0 = { mustprogress nocallback nofree nosync nounwind willreturn memory(argmem: readwrite) }
attributes #1 = { mustprogress nocallback nofree nosync nounwind willreturn }
attributes #2 = { 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 #3 = { 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 #4 = { 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 = distinct !{!5, !6}
!6 = !{!"llvm.loop.mustprogress"}


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