; LLVM IR from intel/qpl :: sources/isal/igzip (igzip_icf_body)

; 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.isal_zstream = type { ptr, i32, i32, ptr, i32, i32, ptr, i32, i32, ptr, i16, i16, i16, i16, %struct.isal_zstate }
%struct.isal_zstate = type { i32, i32, i32, i32, i32, i32, %struct.BitBuf2, i32, i8, i8, i8, i8, i16, i32, [16 x i8], i32, i32, i32, i32, [65824 x i8], [8192 x i16] }
%struct.BitBuf2 = type { i64, i32, ptr, ptr, ptr }

; Function Attrs: nounwind uwtable
define dso_local void @qpl_isal_deflate_icf_body(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.isal_zstream, ptr %3, i32 0, i32 7
  %5 = load i32, ptr %4, align 8, !tbaa !9
  switch i32 %5, label %11 [
    i32 3, label %6
    i32 2, label %8
    i32 1, label %10
  ]

6:                                                ; preds = %1
  %7 = load ptr, ptr %2, align 8, !tbaa !5
  call void @qpl_isal_deflate_icf_body_lvl3(ptr noundef %7)
  br label %13

8:                                                ; preds = %1
  %9 = load ptr, ptr %2, align 8, !tbaa !5
  call void @qpl_isal_deflate_icf_body_lvl2(ptr noundef %9)
  br label %13

10:                                               ; preds = %1
  br label %11

11:                                               ; preds = %10, %1
  %12 = load ptr, ptr %2, align 8, !tbaa !5
  call void @qpl_isal_deflate_icf_body_lvl1(ptr noundef %12)
  br label %13

13:                                               ; preds = %11, %8, %6
  ret void
}

declare void @qpl_isal_deflate_icf_body_lvl3(ptr noundef) #1

declare void @qpl_isal_deflate_icf_body_lvl2(ptr noundef) #1

declare void @qpl_isal_deflate_icf_body_lvl1(ptr noundef) #1

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 = { "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 40}
!10 = !{!"isal_zstream", !6, i64 0, !11, i64 8, !11, i64 12, !6, i64 16, !11, i64 24, !11, i64 28, !6, i64 32, !11, i64 40, !11, i64 44, !6, i64 48, !12, i64 56, !12, i64 58, !12, i64 60, !12, i64 62, !13, i64 64}
!11 = !{!"int", !7, i64 0}
!12 = !{!"short", !7, i64 0}
!13 = !{!"isal_zstate", !11, i64 0, !11, i64 4, !11, i64 8, !11, i64 12, !11, i64 16, !11, i64 20, !14, i64 24, !11, i64 64, !7, i64 68, !7, i64 69, !7, i64 70, !7, i64 71, !12, i64 72, !11, i64 76, !7, i64 80, !11, i64 96, !11, i64 100, !11, i64 104, !11, i64 108, !7, i64 112, !7, i64 65936}
!14 = !{!"BitBuf2", !15, i64 0, !11, i64 8, !6, i64 16, !6, i64 24, !6, i64 32}
!15 = !{!"long", !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 @qpl_isal_deflate_icf_body(ptr noundef %0) local_unnamed_addr #0 {
  %2 = getelementptr inbounds i8, ptr %0, i64 40
  %3 = load i32, ptr %2, align 8, !tbaa !5
  switch i32 %3, label %6 [
    i32 3, label %4
    i32 2, label %5
  ]

4:                                                ; preds = %1
  tail call void @qpl_isal_deflate_icf_body_lvl3(ptr noundef nonnull %0) #2
  br label %7

5:                                                ; preds = %1
  tail call void @qpl_isal_deflate_icf_body_lvl2(ptr noundef nonnull %0) #2
  br label %7

6:                                                ; preds = %1
  tail call void @qpl_isal_deflate_icf_body_lvl1(ptr noundef nonnull %0) #2
  br label %7

7:                                                ; preds = %6, %5, %4
  ret void
}

declare void @qpl_isal_deflate_icf_body_lvl3(ptr noundef) local_unnamed_addr #1

declare void @qpl_isal_deflate_icf_body_lvl2(ptr noundef) local_unnamed_addr #1

declare void @qpl_isal_deflate_icf_body_lvl1(ptr noundef) local_unnamed_addr #1

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 = { "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, !10, i64 40}
!6 = !{!"isal_zstream", !7, i64 0, !10, i64 8, !10, i64 12, !7, i64 16, !10, i64 24, !10, i64 28, !7, i64 32, !10, i64 40, !10, i64 44, !7, i64 48, !11, i64 56, !11, i64 58, !11, i64 60, !11, i64 62, !12, i64 64}
!7 = !{!"any pointer", !8, i64 0}
!8 = !{!"omnipotent char", !9, i64 0}
!9 = !{!"Simple C/C++ TBAA"}
!10 = !{!"int", !8, i64 0}
!11 = !{!"short", !8, i64 0}
!12 = !{!"isal_zstate", !10, i64 0, !10, i64 4, !10, i64 8, !10, i64 12, !10, i64 16, !10, i64 20, !13, i64 24, !10, i64 64, !8, i64 68, !8, i64 69, !8, i64 70, !8, i64 71, !11, i64 72, !10, i64 76, !8, i64 80, !10, i64 96, !10, i64 100, !10, i64 104, !10, i64 108, !8, i64 112, !8, i64 65936}
!13 = !{!"BitBuf2", !14, i64 0, !10, i64 8, !7, i64 16, !7, i64 24, !7, i64 32}
!14 = !{!"long", !8, i64 0}


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