; LLVM IR from jspd-group/pegit :: src (commit)

; 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.commit_list = type { i64, ptr, ptr }

; 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
define dso_local ptr @find_commit_generic(ptr noundef %0, ptr noundef %1) #1 {
  %3 = alloca ptr, align 8
  %4 = alloca ptr, align 8
  %5 = alloca ptr, align 8
  %6 = alloca ptr, align 8
  %7 = alloca i32, align 4
  store ptr %0, ptr %4, align 8, !tbaa !5
  store ptr %1, ptr %5, align 8, !tbaa !5
  call void @llvm.lifetime.start.p0(i64 8, ptr %6) #2
  %8 = load ptr, ptr %4, align 8, !tbaa !5
  store ptr %8, ptr %6, align 8, !tbaa !5
  br label %9

9:                                                ; preds = %22, %2
  %10 = load ptr, ptr %6, align 8, !tbaa !5
  %11 = icmp ne ptr %10, null
  br i1 %11, label %12, label %26

12:                                               ; preds = %9
  %13 = load ptr, ptr %5, align 8, !tbaa !5
  %14 = load ptr, ptr %6, align 8, !tbaa !5
  %15 = getelementptr inbounds %struct.commit_list, ptr %14, i32 0, i32 1
  %16 = load ptr, ptr %15, align 8, !tbaa !9
  %17 = call zeroext i1 %13(ptr noundef %16)
  br i1 %17, label %18, label %22

18:                                               ; preds = %12
  %19 = load ptr, ptr %6, align 8, !tbaa !5
  %20 = getelementptr inbounds %struct.commit_list, ptr %19, i32 0, i32 1
  %21 = load ptr, ptr %20, align 8, !tbaa !9
  store ptr %21, ptr %3, align 8
  store i32 1, ptr %7, align 4
  br label %27

22:                                               ; preds = %12
  %23 = load ptr, ptr %6, align 8, !tbaa !5
  %24 = getelementptr inbounds %struct.commit_list, ptr %23, i32 0, i32 2
  %25 = load ptr, ptr %24, align 8, !tbaa !12
  store ptr %25, ptr %6, align 8, !tbaa !5
  br label %9, !llvm.loop !13

26:                                               ; preds = %9
  store ptr null, ptr %3, align 8
  store i32 1, ptr %7, align 4
  br label %27

27:                                               ; preds = %26, %18
  call void @llvm.lifetime.end.p0(i64 8, ptr %6) #2
  %28 = load ptr, ptr %3, align 8
  ret ptr %28
}

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, !6, i64 8}
!10 = !{!"commit_list", !11, i64 0, !6, i64 8, !6, i64 16}
!11 = !{!"long", !7, i64 0}
!12 = !{!10, !6, i64 16}
!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"

; Function Attrs: nounwind uwtable
define dso_local ptr @find_commit_generic(ptr noundef readonly %0, ptr nocapture noundef readonly %1) local_unnamed_addr #0 {
  %.not8 = icmp eq ptr %0, null
  br i1 %.not8, label %.loopexit, label %.lr.ph

.lr.ph:                                           ; preds = %2, %9
  %.09 = phi ptr [ %11, %9 ], [ %0, %2 ]
  %3 = getelementptr inbounds i8, ptr %.09, i64 8
  %4 = load ptr, ptr %3, align 8, !tbaa !5
  %5 = tail call zeroext i1 %1(ptr noundef %4) #1
  br i1 %5, label %6, label %9

6:                                                ; preds = %.lr.ph
  %7 = getelementptr inbounds i8, ptr %.09, i64 8
  %8 = load ptr, ptr %7, align 8, !tbaa !5
  br label %.loopexit

9:                                                ; preds = %.lr.ph
  %10 = getelementptr inbounds i8, ptr %.09, i64 16
  %11 = load ptr, ptr %10, align 8, !tbaa !11
  %.not = icmp eq ptr %11, null
  br i1 %.not, label %.loopexit, label %.lr.ph, !llvm.loop !12

.loopexit:                                        ; preds = %9, %2, %6
  %.07 = phi ptr [ %8, %6 ], [ null, %2 ], [ null, %9 ]
  ret ptr %.07
}

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


; Effective O3 passes: EarlyCSEPass,GVNPass,GlobalOptPass,InferFunctionAttrsPass,InstCombinePass,InstSimplifyPass,JumpThreadingPass,LCSSAPass,LICMPass,LoopRotatePass,LoopSimplifyPass,LoopUnrollPass,PostOrderFunctionAttrsPass,SROAPass,SimplifyCFGPass,TailCallElimPass