; LLVM IR from sysprog21/shecc :: tools (inliner)

; 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.source_t = type { i32, i32, ptr }

@SOURCE = external dso_local global ptr, align 8
@.str.3 = external hidden unnamed_addr constant [3 x i8], align 1

; 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

declare noalias ptr @fopen(ptr noundef, ptr noundef) #1

declare i32 @fclose(ptr noundef) #1

; Function Attrs: nounwind uwtable
define dso_local void @save_to(ptr noundef %0) #2 {
  %2 = alloca ptr, align 8
  %3 = alloca ptr, align 8
  %4 = alloca i32, align 4
  store ptr %0, ptr %2, align 8, !tbaa !5
  call void @llvm.lifetime.start.p0(i64 8, ptr %3) #3
  %5 = load ptr, ptr %2, align 8, !tbaa !5
  %6 = call noalias ptr @fopen(ptr noundef %5, ptr noundef @.str.3)
  store ptr %6, ptr %3, align 8, !tbaa !5
  call void @llvm.lifetime.start.p0(i64 4, ptr %4) #3
  store i32 0, ptr %4, align 4, !tbaa !9
  br label %7

7:                                                ; preds = %25, %1
  %8 = load i32, ptr %4, align 4, !tbaa !9
  %9 = load ptr, ptr @SOURCE, align 8, !tbaa !5
  %10 = getelementptr inbounds %struct.source_t, ptr %9, i32 0, i32 0
  %11 = load i32, ptr %10, align 8, !tbaa !11
  %12 = icmp slt i32 %8, %11
  br i1 %12, label %14, label %13

13:                                               ; preds = %7
  call void @llvm.lifetime.end.p0(i64 4, ptr %4) #3
  br label %28

14:                                               ; preds = %7
  %15 = load ptr, ptr @SOURCE, align 8, !tbaa !5
  %16 = getelementptr inbounds %struct.source_t, ptr %15, i32 0, i32 2
  %17 = load ptr, ptr %16, align 8, !tbaa !13
  %18 = load i32, ptr %4, align 4, !tbaa !9
  %19 = sext i32 %18 to i64
  %20 = getelementptr inbounds i8, ptr %17, i64 %19
  %21 = load i8, ptr %20, align 1, !tbaa !14
  %22 = sext i8 %21 to i32
  %23 = load ptr, ptr %3, align 8, !tbaa !5
  %24 = call i32 @fputc(i32 noundef %22, ptr noundef %23)
  br label %25

25:                                               ; preds = %14
  %26 = load i32, ptr %4, align 4, !tbaa !9
  %27 = add nsw i32 %26, 1
  store i32 %27, ptr %4, align 4, !tbaa !9
  br label %7, !llvm.loop !15

28:                                               ; preds = %13
  %29 = load ptr, ptr %3, align 8, !tbaa !5
  %30 = call i32 @fclose(ptr noundef %29)
  call void @llvm.lifetime.end.p0(i64 8, ptr %3) #3
  ret void
}

declare i32 @fputc(i32 noundef, ptr noundef) #1

attributes #0 = { nocallback nofree nosync nounwind willreturn memory(argmem: readwrite) }
attributes #1 = { "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 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 = { 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 = !{!12, !10, i64 0}
!12 = !{!"", !10, i64 0, !10, i64 4, !6, i64 8}
!13 = !{!12, !6, i64 8}
!14 = !{!7, !7, i64 0}
!15 = distinct !{!15, !16}
!16 = !{!"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"

@SOURCE = external dso_local local_unnamed_addr global ptr, align 8
@.str.3 = external hidden unnamed_addr constant [3 x i8], align 1

; Function Attrs: nofree nounwind
declare noalias noundef ptr @fopen(ptr nocapture noundef readonly, ptr nocapture noundef readonly) local_unnamed_addr #0

; Function Attrs: nofree nounwind
declare noundef i32 @fclose(ptr nocapture noundef) local_unnamed_addr #0

; Function Attrs: nofree nounwind uwtable
define dso_local void @save_to(ptr nocapture noundef readonly %0) local_unnamed_addr #1 {
  %2 = tail call noalias ptr @fopen(ptr noundef %0, ptr noundef nonnull @.str.3)
  %3 = load ptr, ptr @SOURCE, align 8, !tbaa !5
  %4 = load i32, ptr %3, align 8, !tbaa !9
  %5 = icmp sgt i32 %4, 0
  br i1 %5, label %.lr.ph, label %._crit_edge

._crit_edge:                                      ; preds = %.lr.ph, %1
  %6 = tail call i32 @fclose(ptr noundef %2)
  ret void

.lr.ph:                                           ; preds = %1, %.lr.ph
  %indvars.iv = phi i64 [ %indvars.iv.next, %.lr.ph ], [ 0, %1 ]
  %7 = phi ptr [ %14, %.lr.ph ], [ %3, %1 ]
  %8 = getelementptr inbounds i8, ptr %7, i64 8
  %9 = load ptr, ptr %8, align 8, !tbaa !12
  %10 = getelementptr inbounds i8, ptr %9, i64 %indvars.iv
  %11 = load i8, ptr %10, align 1, !tbaa !13
  %12 = sext i8 %11 to i32
  %13 = tail call i32 @fputc(i32 noundef %12, ptr noundef %2)
  %indvars.iv.next = add nuw nsw i64 %indvars.iv, 1
  %14 = load ptr, ptr @SOURCE, align 8, !tbaa !5
  %15 = load i32, ptr %14, align 8, !tbaa !9
  %16 = sext i32 %15 to i64
  %17 = icmp slt i64 %indvars.iv.next, %16
  br i1 %17, label %.lr.ph, label %._crit_edge, !llvm.loop !14
}

; Function Attrs: nofree nounwind
declare noundef i32 @fputc(i32 noundef, ptr nocapture noundef) local_unnamed_addr #0

attributes #0 = { nofree nounwind "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 = { nofree 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, !6, i64 0}
!6 = !{!"any pointer", !7, i64 0}
!7 = !{!"omnipotent char", !8, i64 0}
!8 = !{!"Simple C/C++ TBAA"}
!9 = !{!10, !11, i64 0}
!10 = !{!"", !11, i64 0, !11, i64 4, !6, i64 8}
!11 = !{!"int", !7, i64 0}
!12 = !{!10, !6, i64 8}
!13 = !{!7, !7, i64 0}
!14 = distinct !{!14, !15}
!15 = !{!"llvm.loop.mustprogress"}


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