; 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 }
%struct.commit = type { i16, [20 x i8], [50 x i8], [41 x i8], ptr, %struct.strbuf, %struct.strbuf, %struct.timestamp, i64, i64 }
%struct.strbuf = type { i64, i64, ptr }
%struct.timestamp = type { i64, 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_hash_compat(ptr noundef %0, ptr noundef %1, i64 noundef %2) #1 {
  %4 = alloca ptr, align 8
  %5 = alloca ptr, align 8
  %6 = alloca ptr, align 8
  %7 = alloca i64, align 8
  %8 = alloca ptr, align 8
  %9 = alloca i32, align 4
  store ptr %0, ptr %5, align 8, !tbaa !5
  store ptr %1, ptr %6, align 8, !tbaa !5
  store i64 %2, ptr %7, align 8, !tbaa !9
  call void @llvm.lifetime.start.p0(i64 8, ptr %8) #2
  %10 = load ptr, ptr %5, align 8, !tbaa !5
  store ptr %10, ptr %8, align 8, !tbaa !5
  br label %11

11:                                               ; preds = %27, %3
  %12 = load ptr, ptr %8, align 8, !tbaa !5
  %13 = icmp ne ptr %12, null
  br i1 %13, label %14, label %31

14:                                               ; preds = %11
  %15 = load ptr, ptr %8, align 8, !tbaa !5
  %16 = getelementptr inbounds %struct.commit_list, ptr %15, i32 0, i32 1
  %17 = load ptr, ptr %16, align 8, !tbaa !11
  %18 = getelementptr inbounds %struct.commit, ptr %17, i32 0, i32 3
  %19 = getelementptr inbounds [41 x i8], ptr %18, i64 0, i64 0
  %20 = load ptr, ptr %6, align 8, !tbaa !5
  %21 = load i64, ptr %7, align 8, !tbaa !9
  %22 = call zeroext i1 @hash_starts_with(ptr noundef %19, ptr noundef %20, i64 noundef %21)
  br i1 %22, label %23, label %27

23:                                               ; preds = %14
  %24 = load ptr, ptr %8, align 8, !tbaa !5
  %25 = getelementptr inbounds %struct.commit_list, ptr %24, i32 0, i32 1
  %26 = load ptr, ptr %25, align 8, !tbaa !11
  store ptr %26, ptr %4, align 8
  store i32 1, ptr %9, align 4
  br label %32

27:                                               ; preds = %14
  %28 = load ptr, ptr %8, align 8, !tbaa !5
  %29 = getelementptr inbounds %struct.commit_list, ptr %28, i32 0, i32 2
  %30 = load ptr, ptr %29, align 8, !tbaa !13
  store ptr %30, ptr %8, align 8, !tbaa !5
  br label %11, !llvm.loop !14

31:                                               ; preds = %11
  store ptr null, ptr %4, align 8
  store i32 1, ptr %9, align 4
  br label %32

32:                                               ; preds = %31, %23
  call void @llvm.lifetime.end.p0(i64 8, ptr %8) #2
  %33 = load ptr, ptr %4, align 8
  ret ptr %33
}

; Function Attrs: nounwind uwtable
declare hidden zeroext i1 @hash_starts_with(ptr noundef, ptr noundef, i64 noundef) #1

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 = !{!"long", !7, i64 0}
!11 = !{!12, !6, i64 8}
!12 = !{!"commit_list", !10, i64 0, !6, i64 8, !6, i64 16}
!13 = !{!12, !6, i64 16}
!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"

; Function Attrs: nounwind uwtable
define dso_local ptr @find_commit_hash_compat(ptr noundef readonly %0, ptr noundef %1, i64 noundef %2) local_unnamed_addr #0 {
  %.not8 = icmp eq ptr %0, null
  br i1 %.not8, label %.loopexit, label %.lr.ph

.lr.ph:                                           ; preds = %3, %11
  %.09 = phi ptr [ %13, %11 ], [ %0, %3 ]
  %4 = getelementptr inbounds i8, ptr %.09, i64 8
  %5 = load ptr, ptr %4, align 8, !tbaa !5
  %6 = getelementptr inbounds i8, ptr %5, i64 72
  %7 = tail call zeroext i1 @hash_starts_with(ptr noundef nonnull %6, ptr noundef %1, i64 noundef %2)
  br i1 %7, label %8, label %11

8:                                                ; preds = %.lr.ph
  %9 = getelementptr inbounds i8, ptr %.09, i64 8
  %10 = load ptr, ptr %9, align 8, !tbaa !5
  br label %.loopexit

11:                                               ; preds = %.lr.ph
  %12 = getelementptr inbounds i8, ptr %.09, i64 16
  %13 = load ptr, ptr %12, align 8, !tbaa !11
  %.not = icmp eq ptr %13, null
  br i1 %.not, label %.loopexit, label %.lr.ph, !llvm.loop !12

.loopexit:                                        ; preds = %11, %3, %8
  %.07 = phi ptr [ %10, %8 ], [ null, %3 ], [ null, %11 ]
  ret ptr %.07
}

; Function Attrs: nounwind uwtable
declare hidden zeroext i1 @hash_starts_with(ptr noundef, ptr noundef, i64 noundef) local_unnamed_addr #0

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 = !{!"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