; LLVM IR from libtcod/libtcod :: src/libtcod (parser_c)

; 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.TCOD_Parser = type { ptr, [16 x ptr], i8, 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 i32 @TCOD_parser_new_custom_type(ptr noundef %0, ptr noundef %1) #1 {
  %3 = alloca i32, align 4
  %4 = alloca ptr, align 8
  %5 = alloca ptr, align 8
  %6 = alloca i32, align 4
  %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 4, ptr %6) #2
  store i32 24, ptr %6, align 4, !tbaa !9
  br label %8

8:                                                ; preds = %22, %2
  %9 = load ptr, ptr %4, align 8, !tbaa !5
  %10 = getelementptr inbounds %struct.TCOD_Parser, ptr %9, i32 0, i32 1
  %11 = load i32, ptr %6, align 4, !tbaa !9
  %12 = sub i32 %11, 24
  %13 = zext i32 %12 to i64
  %14 = getelementptr inbounds [16 x ptr], ptr %10, i64 0, i64 %13
  %15 = load ptr, ptr %14, align 8, !tbaa !5
  %16 = icmp ne ptr %15, null
  br i1 %16, label %17, label %20

17:                                               ; preds = %8
  %18 = load i32, ptr %6, align 4, !tbaa !9
  %19 = icmp ult i32 %18, 39
  br label %20

20:                                               ; preds = %17, %8
  %21 = phi i1 [ false, %8 ], [ %19, %17 ]
  br i1 %21, label %22, label %25

22:                                               ; preds = %20
  %23 = load i32, ptr %6, align 4, !tbaa !9
  %24 = add i32 %23, 1
  store i32 %24, ptr %6, align 4, !tbaa !9
  br label %8, !llvm.loop !11

25:                                               ; preds = %20
  %26 = load ptr, ptr %4, align 8, !tbaa !5
  %27 = getelementptr inbounds %struct.TCOD_Parser, ptr %26, i32 0, i32 1
  %28 = load i32, ptr %6, align 4, !tbaa !9
  %29 = sub i32 %28, 24
  %30 = zext i32 %29 to i64
  %31 = getelementptr inbounds [16 x ptr], ptr %27, i64 0, i64 %30
  %32 = load ptr, ptr %31, align 8, !tbaa !5
  %33 = icmp ne ptr %32, null
  br i1 %33, label %34, label %35

34:                                               ; preds = %25
  store i32 0, ptr %3, align 4
  store i32 1, ptr %7, align 4
  br label %44

35:                                               ; preds = %25
  %36 = load ptr, ptr %5, align 8, !tbaa !5
  %37 = load ptr, ptr %4, align 8, !tbaa !5
  %38 = getelementptr inbounds %struct.TCOD_Parser, ptr %37, i32 0, i32 1
  %39 = load i32, ptr %6, align 4, !tbaa !9
  %40 = sub i32 %39, 24
  %41 = zext i32 %40 to i64
  %42 = getelementptr inbounds [16 x ptr], ptr %38, i64 0, i64 %41
  store ptr %36, ptr %42, align 8, !tbaa !5
  %43 = load i32, ptr %6, align 4, !tbaa !9
  store i32 %43, ptr %3, align 4
  store i32 1, ptr %7, align 4
  br label %44

44:                                               ; preds = %35, %34
  call void @llvm.lifetime.end.p0(i64 4, ptr %6) #2
  %45 = load i32, ptr %3, align 4
  ret i32 %45
}

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 = !{!"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: nofree norecurse nosync nounwind memory(argmem: readwrite) uwtable
define dso_local i32 @TCOD_parser_new_custom_type(ptr nocapture noundef %0, ptr noundef %1) local_unnamed_addr #0 {
  %3 = getelementptr inbounds i8, ptr %0, i64 8
  br label %4

4:                                                ; preds = %4, %2
  %indvars.iv = phi i64 [ %indvars.iv.next, %4 ], [ 24, %2 ]
  %5 = add nsw i64 %indvars.iv, -24
  %6 = getelementptr inbounds [16 x ptr], ptr %3, i64 0, i64 %5
  %7 = load ptr, ptr %6, align 8, !tbaa !5
  %8 = icmp ne ptr %7, null
  %9 = icmp ult i64 %indvars.iv, 39
  %10 = and i1 %9, %8
  %indvars.iv.next = add nuw nsw i64 %indvars.iv, 1
  br i1 %10, label %4, label %11, !llvm.loop !9

11:                                               ; preds = %4
  br i1 %8, label %15, label %12

12:                                               ; preds = %11
  %13 = getelementptr inbounds [16 x ptr], ptr %3, i64 0, i64 %5
  %14 = trunc nuw nsw i64 %indvars.iv to i32
  store ptr %1, ptr %13, align 8, !tbaa !5
  br label %15

15:                                               ; preds = %11, %12
  %.010 = phi i32 [ %14, %12 ], [ 0, %11 ]
  ret i32 %.010
}

attributes #0 = { nofree norecurse nosync nounwind memory(argmem: readwrite) 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, !6, i64 0}
!6 = !{!"any pointer", !7, i64 0}
!7 = !{!"omnipotent char", !8, i64 0}
!8 = !{!"Simple C/C++ TBAA"}
!9 = distinct !{!9, !10}
!10 = !{!"llvm.loop.mustprogress"}


; Effective O3 passes: EarlyCSEPass,GVNPass,GlobalOptPass,IPSCCPPass,IndVarSimplifyPass,InferFunctionAttrsPass,InstCombinePass,InstSimplifyPass,LCSSAPass,LICMPass,LoopRotatePass,LoopUnrollPass,PostOrderFunctionAttrsPass,ReassociatePass,SROAPass,SimplifyCFGPass