; LLVM IR from devantler/software-engineering-f22-shared :: IOT/BudgetManagementExcercise-03-28/ESP-Project/components/components/nghttp (gv)

; 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.mrb_state = type { ptr, i32, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, %struct.mrb_gc, i32, ptr, [256 x i32], i64, [8 x i8], ptr, ptr, ptr, ptr, ptr, ptr, i16, i16 }
%struct.mrb_gc = type { ptr, ptr, ptr, i64, ptr, i32, i32, i32, i32, ptr, ptr, i64, i64, i32, i32, i8, i64 }

; Function Attrs: nounwind uwtable
define dso_local void @mrb_gc_free_gv(ptr noundef %0) #0 {
  %2 = alloca ptr, align 8
  store ptr %0, ptr %2, align 8, !tbaa !5
  %3 = load ptr, ptr %2, align 8, !tbaa !5
  %4 = getelementptr inbounds %struct.mrb_state, ptr %3, i32 0, i32 6
  %5 = load ptr, ptr %4, align 8, !tbaa !9
  %6 = icmp ne ptr %5, null
  br i1 %6, label %7, label %12

7:                                                ; preds = %1
  %8 = load ptr, ptr %2, align 8, !tbaa !5
  %9 = load ptr, ptr %2, align 8, !tbaa !5
  %10 = getelementptr inbounds %struct.mrb_state, ptr %9, i32 0, i32 6
  %11 = load ptr, ptr %10, align 8, !tbaa !9
  call void @iv_free(ptr noundef %8, ptr noundef %11)
  br label %12

12:                                               ; preds = %7, %1
  ret void
}

; Function Attrs: nounwind uwtable
declare hidden void @iv_free(ptr noundef, ptr noundef) #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, !6, i64 0}
!6 = !{!"any pointer", !7, i64 0}
!7 = !{!"omnipotent char", !8, i64 0}
!8 = !{!"Simple C/C++ TBAA"}
!9 = !{!10, !6, i64 48}
!10 = !{!"mrb_state", !6, i64 0, !11, i64 8, !6, i64 16, !6, i64 24, !6, i64 32, !6, i64 40, !6, i64 48, !6, i64 56, !6, i64 64, !6, i64 72, !6, i64 80, !6, i64 88, !6, i64 96, !6, i64 104, !6, i64 112, !6, i64 120, !6, i64 128, !6, i64 136, !6, i64 144, !6, i64 152, !6, i64 160, !6, i64 168, !6, i64 176, !6, i64 184, !6, i64 192, !12, i64 200, !11, i64 312, !6, i64 320, !7, i64 328, !13, i64 1352, !7, i64 1360, !6, i64 1368, !6, i64 1376, !6, i64 1384, !6, i64 1392, !6, i64 1400, !6, i64 1408, !14, i64 1416, !14, i64 1418}
!11 = !{!"int", !7, i64 0}
!12 = !{!"mrb_gc", !6, i64 0, !6, i64 8, !6, i64 16, !13, i64 24, !6, i64 32, !11, i64 40, !11, i64 44, !11, i64 48, !11, i64 52, !6, i64 56, !6, i64 64, !13, i64 72, !13, i64 80, !11, i64 88, !11, i64 92, !7, i64 96, !7, i64 96, !7, i64 96, !7, i64 96, !7, i64 96, !13, i64 104}
!13 = !{!"long", !7, i64 0}
!14 = !{!"short", !7, i64 0}


; 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 void @mrb_gc_free_gv(ptr noundef %0) local_unnamed_addr #0 {
  %2 = getelementptr inbounds i8, ptr %0, i64 48
  %3 = load ptr, ptr %2, align 8, !tbaa !5
  %.not = icmp eq ptr %3, null
  br i1 %.not, label %5, label %4

4:                                                ; preds = %1
  tail call void @iv_free(ptr noundef nonnull %0, ptr noundef nonnull %3)
  br label %5

5:                                                ; preds = %4, %1
  ret void
}

; Function Attrs: nounwind uwtable
declare hidden void @iv_free(ptr noundef, ptr 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, !7, i64 48}
!6 = !{!"mrb_state", !7, i64 0, !10, i64 8, !7, i64 16, !7, i64 24, !7, i64 32, !7, i64 40, !7, i64 48, !7, i64 56, !7, i64 64, !7, i64 72, !7, i64 80, !7, i64 88, !7, i64 96, !7, i64 104, !7, i64 112, !7, i64 120, !7, i64 128, !7, i64 136, !7, i64 144, !7, i64 152, !7, i64 160, !7, i64 168, !7, i64 176, !7, i64 184, !7, i64 192, !11, i64 200, !10, i64 312, !7, i64 320, !8, i64 328, !12, i64 1352, !8, i64 1360, !7, i64 1368, !7, i64 1376, !7, i64 1384, !7, i64 1392, !7, i64 1400, !7, i64 1408, !13, i64 1416, !13, i64 1418}
!7 = !{!"any pointer", !8, i64 0}
!8 = !{!"omnipotent char", !9, i64 0}
!9 = !{!"Simple C/C++ TBAA"}
!10 = !{!"int", !8, i64 0}
!11 = !{!"mrb_gc", !7, i64 0, !7, i64 8, !7, i64 16, !12, i64 24, !7, i64 32, !10, i64 40, !10, i64 44, !10, i64 48, !10, i64 52, !7, i64 56, !7, i64 64, !12, i64 72, !12, i64 80, !10, i64 88, !10, i64 92, !8, i64 96, !8, i64 96, !8, i64 96, !8, i64 96, !8, i64 96, !12, i64 104}
!12 = !{!"long", !8, i64 0}
!13 = !{!"short", !8, i64 0}


; Effective O3 passes: CorrelatedValuePropagationPass,EarlyCSEPass,GlobalOptPass,InstCombinePass,SROAPass,TailCallElimPass