; LLVM IR from ohler55/agoo :: ext/agoo (log)

; 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._agooColor = type { ptr, ptr }

@colors = external hidden global [16 x %struct._agooColor], align 16

; Function Attrs: nounwind uwtable
define dso_local ptr @find_color(ptr noundef %0) #0 {
  %2 = alloca ptr, align 8
  %3 = alloca ptr, align 8
  %4 = alloca ptr, align 8
  %5 = alloca i32, align 4
  store ptr %0, ptr %3, align 8, !tbaa !5
  %6 = load ptr, ptr %3, align 8, !tbaa !5
  %7 = icmp ne ptr null, %6
  br i1 %7, label %8, label %31

8:                                                ; preds = %1
  call void @llvm.lifetime.start.p0(i64 8, ptr %4) #3
  store ptr @colors, ptr %4, align 8, !tbaa !5
  br label %9

9:                                                ; preds = %24, %8
  %10 = load ptr, ptr %4, align 8, !tbaa !5
  %11 = getelementptr inbounds %struct._agooColor, ptr %10, i32 0, i32 0
  %12 = load ptr, ptr %11, align 8, !tbaa !9
  %13 = icmp ne ptr null, %12
  br i1 %13, label %14, label %27

14:                                               ; preds = %9
  %15 = load ptr, ptr %4, align 8, !tbaa !5
  %16 = getelementptr inbounds %struct._agooColor, ptr %15, i32 0, i32 0
  %17 = load ptr, ptr %16, align 8, !tbaa !9
  %18 = load ptr, ptr %3, align 8, !tbaa !5
  %19 = call i32 @strcasecmp(ptr noundef %17, ptr noundef %18) #4
  %20 = icmp eq i32 0, %19
  br i1 %20, label %21, label %23

21:                                               ; preds = %14
  %22 = load ptr, ptr %4, align 8, !tbaa !5
  store ptr %22, ptr %2, align 8
  store i32 1, ptr %5, align 4
  br label %28

23:                                               ; preds = %14
  br label %24

24:                                               ; preds = %23
  %25 = load ptr, ptr %4, align 8, !tbaa !5
  %26 = getelementptr inbounds %struct._agooColor, ptr %25, i32 1
  store ptr %26, ptr %4, align 8, !tbaa !5
  br label %9, !llvm.loop !11

27:                                               ; preds = %9
  store i32 0, ptr %5, align 4
  br label %28

28:                                               ; preds = %27, %21
  call void @llvm.lifetime.end.p0(i64 8, ptr %4) #3
  %29 = load i32, ptr %5, align 4
  switch i32 %29, label %34 [
    i32 0, label %30
    i32 1, label %32
  ]

30:                                               ; preds = %28
  br label %31

31:                                               ; preds = %30, %1
  store ptr null, ptr %2, align 8
  br label %32

32:                                               ; preds = %31, %28
  %33 = load ptr, ptr %2, align 8
  ret ptr %33

34:                                               ; preds = %28
  unreachable
}

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

; Function Attrs: nounwind willreturn memory(read)
declare i32 @strcasecmp(ptr noundef, ptr 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 = { nounwind willreturn memory(read) "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 }
attributes #4 = { nounwind willreturn memory(read) }

!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, !6, i64 0}
!10 = !{!"_agooColor", !6, i64 0, !6, i64 8}
!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._agooColor = type { ptr, ptr }

@colors = external hidden global [16 x %struct._agooColor], align 16

; Function Attrs: nofree nounwind memory(read) uwtable
define dso_local noundef ptr @find_color(ptr noundef readonly %0) local_unnamed_addr #0 {
  %.not = icmp eq ptr %0, null
  %2 = load ptr, ptr @colors, align 16
  %.not11.not13 = icmp eq ptr %2, null
  %or.cond = select i1 %.not, i1 true, i1 %.not11.not13
  br i1 %or.cond, label %.thread, label %.lr.ph

.lr.ph:                                           ; preds = %1, %6
  %3 = phi ptr [ %8, %6 ], [ %2, %1 ]
  %.0714 = phi ptr [ %7, %6 ], [ @colors, %1 ]
  %4 = tail call i32 @strcasecmp(ptr noundef nonnull %3, ptr noundef nonnull %0) #2
  %5 = icmp eq i32 %4, 0
  br i1 %5, label %.thread, label %6

6:                                                ; preds = %.lr.ph
  %7 = getelementptr inbounds i8, ptr %.0714, i64 16
  %8 = load ptr, ptr %7, align 8, !tbaa !5
  %.not11.not = icmp eq ptr %8, null
  br i1 %.not11.not, label %.thread, label %.lr.ph, !llvm.loop !10

.thread:                                          ; preds = %.lr.ph, %6, %1
  %.1 = phi ptr [ null, %1 ], [ %.0714, %.lr.ph ], [ null, %6 ]
  ret ptr %.1
}

; Function Attrs: mustprogress nofree nounwind willreturn memory(read)
declare i32 @strcasecmp(ptr nocapture noundef, ptr nocapture noundef) local_unnamed_addr #1

attributes #0 = { nofree nounwind memory(read) 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 nofree nounwind willreturn memory(read) "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 willreturn memory(read) }

!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 0}
!6 = !{!"_agooColor", !7, i64 0, !7, i64 8}
!7 = !{!"any pointer", !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: EarlyCSEPass,GlobalOptPass,IPSCCPPass,InferAlignmentPass,InferFunctionAttrsPass,InstCombinePass,JumpThreadingPass,LoopRotatePass,LoopSimplifyPass,LoopUnrollPass,PostOrderFunctionAttrsPass,SROAPass,SimplifyCFGPass,TailCallElimPass