; LLVM IR from ermig1979/Simd :: src/Simd/SimdBaseGrayToY.ll (ZN4Simd4Base7GrayToYEPKhmmmPhm)

; 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"

; Function Attrs: mustprogress uwtable
define dso_local void @_ZN4Simd4Base7GrayToYEPKhmmmPhm(ptr noundef %0, i64 noundef %1, i64 noundef %2, i64 noundef %3, ptr noundef %4, i64 noundef %5) #0 {
  %7 = alloca ptr, align 8
  %8 = alloca i64, align 8
  %9 = alloca i64, align 8
  %10 = alloca i64, align 8
  %11 = alloca ptr, align 8
  %12 = alloca i64, align 8
  %13 = alloca i64, align 8
  %14 = alloca i32, align 4
  %15 = alloca i64, align 8
  store ptr %0, ptr %7, align 8, !tbaa !5
  store i64 %1, ptr %8, align 8, !tbaa !9
  store i64 %2, ptr %9, align 8, !tbaa !9
  store i64 %3, ptr %10, align 8, !tbaa !9
  store ptr %4, ptr %11, align 8, !tbaa !5
  store i64 %5, ptr %12, align 8, !tbaa !9
  call void @llvm.lifetime.start.p0(i64 8, ptr %13) #3
  store i64 0, ptr %13, align 8, !tbaa !9
  br label %16

16:                                               ; preds = %48, %6
  %17 = load i64, ptr %13, align 8, !tbaa !9
  %18 = load i64, ptr %10, align 8, !tbaa !9
  %19 = icmp ult i64 %17, %18
  br i1 %19, label %21, label %20

20:                                               ; preds = %16
  store i32 2, ptr %14, align 4
  call void @llvm.lifetime.end.p0(i64 8, ptr %13) #3
  br label %51

21:                                               ; preds = %16
  call void @llvm.lifetime.start.p0(i64 8, ptr %15) #3
  store i64 0, ptr %15, align 8, !tbaa !9
  br label %22

22:                                               ; preds = %38, %21
  %23 = load i64, ptr %15, align 8, !tbaa !9
  %24 = load i64, ptr %9, align 8, !tbaa !9
  %25 = icmp ult i64 %23, %24
  br i1 %25, label %27, label %26

26:                                               ; preds = %22
  store i32 5, ptr %14, align 4
  call void @llvm.lifetime.end.p0(i64 8, ptr %15) #3
  br label %41

27:                                               ; preds = %22
  %28 = load ptr, ptr %7, align 8, !tbaa !5
  %29 = load i64, ptr %15, align 8, !tbaa !9
  %30 = getelementptr inbounds i8, ptr %28, i64 %29
  %31 = load i8, ptr %30, align 1, !tbaa !11
  %32 = zext i8 %31 to i32
  %33 = call noundef i32 @_ZN4Simd4Base7GrayToYEi(i32 noundef %32)
  %34 = trunc i32 %33 to i8
  %35 = load ptr, ptr %11, align 8, !tbaa !5
  %36 = load i64, ptr %15, align 8, !tbaa !9
  %37 = getelementptr inbounds i8, ptr %35, i64 %36
  store i8 %34, ptr %37, align 1, !tbaa !11
  br label %38

38:                                               ; preds = %27
  %39 = load i64, ptr %15, align 8, !tbaa !9
  %40 = add i64 %39, 1
  store i64 %40, ptr %15, align 8, !tbaa !9
  br label %22, !llvm.loop !12

41:                                               ; preds = %26
  %42 = load i64, ptr %8, align 8, !tbaa !9
  %43 = load ptr, ptr %7, align 8, !tbaa !5
  %44 = getelementptr inbounds i8, ptr %43, i64 %42
  store ptr %44, ptr %7, align 8, !tbaa !5
  %45 = load i64, ptr %12, align 8, !tbaa !9
  %46 = load ptr, ptr %11, align 8, !tbaa !5
  %47 = getelementptr inbounds i8, ptr %46, i64 %45
  store ptr %47, ptr %11, align 8, !tbaa !5
  br label %48

48:                                               ; preds = %41
  %49 = load i64, ptr %13, align 8, !tbaa !9
  %50 = add i64 %49, 1
  store i64 %50, ptr %13, align 8, !tbaa !9
  br label %16, !llvm.loop !14

51:                                               ; preds = %20
  ret void
}

; Function Attrs: nocallback nofree nosync nounwind willreturn memory(argmem: readwrite)
declare void @llvm.lifetime.start.p0(i64 immarg, ptr nocapture) #1

; Function Attrs: alwaysinline mustprogress uwtable
declare dso_local noundef i32 @_ZN4Simd4Base7GrayToYEi(i32 noundef) #2

; Function Attrs: nocallback nofree nosync nounwind willreturn memory(argmem: readwrite)
declare void @llvm.lifetime.end.p0(i64 immarg, ptr nocapture) #1

attributes #0 = { mustprogress 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 = { nocallback nofree nosync nounwind willreturn memory(argmem: readwrite) }
attributes #2 = { alwaysinline mustprogress 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++ TBAA"}
!9 = !{!10, !10, i64 0}
!10 = !{!"long", !7, i64 0}
!11 = !{!7, !7, i64 0}
!12 = distinct !{!12, !13}
!13 = !{!"llvm.loop.mustprogress"}
!14 = distinct !{!14, !13}


; 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: mustprogress uwtable
define dso_local void @_ZN4Simd4Base7GrayToYEPKhmmmPhm(ptr nocapture noundef readonly %0, i64 noundef %1, i64 noundef %2, i64 noundef %3, ptr nocapture noundef writeonly %4, i64 noundef %5) local_unnamed_addr #0 {
  %.not = icmp eq i64 %3, 0
  %.not21 = icmp eq i64 %2, 0
  %or.cond = or i1 %.not, %.not21
  br i1 %or.cond, label %._crit_edge20, label %.preheader.us

.preheader.us:                                    ; preds = %6, %._crit_edge.us
  %.01319.us = phi i64 [ %17, %._crit_edge.us ], [ 0, %6 ]
  %.01418.us = phi ptr [ %15, %._crit_edge.us ], [ %0, %6 ]
  %.01517.us = phi ptr [ %16, %._crit_edge.us ], [ %4, %6 ]
  br label %7

7:                                                ; preds = %.preheader.us, %7
  %.016.us = phi i64 [ 0, %.preheader.us ], [ %14, %7 ]
  %8 = getelementptr inbounds i8, ptr %.01418.us, i64 %.016.us
  %9 = load i8, ptr %8, align 1, !tbaa !5
  %10 = zext i8 %9 to i32
  %11 = tail call noundef i32 @_ZN4Simd4Base7GrayToYEi(i32 noundef %10)
  %12 = trunc i32 %11 to i8
  %13 = getelementptr inbounds i8, ptr %.01517.us, i64 %.016.us
  store i8 %12, ptr %13, align 1, !tbaa !5
  %14 = add nuw i64 %.016.us, 1
  %exitcond.not = icmp eq i64 %14, %2
  br i1 %exitcond.not, label %._crit_edge.us, label %7, !llvm.loop !8

._crit_edge.us:                                   ; preds = %7
  %15 = getelementptr inbounds i8, ptr %.01418.us, i64 %1
  %16 = getelementptr inbounds i8, ptr %.01517.us, i64 %5
  %17 = add nuw i64 %.01319.us, 1
  %exitcond23.not = icmp eq i64 %17, %3
  br i1 %exitcond23.not, label %._crit_edge20, label %.preheader.us, !llvm.loop !10

._crit_edge20:                                    ; preds = %._crit_edge.us, %6
  ret void
}

; Function Attrs: alwaysinline mustprogress uwtable
declare dso_local noundef i32 @_ZN4Simd4Base7GrayToYEi(i32 noundef) local_unnamed_addr #1

attributes #0 = { mustprogress 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 = { alwaysinline mustprogress 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 = !{!"omnipotent char", !7, i64 0}
!7 = !{!"Simple C++ TBAA"}
!8 = distinct !{!8, !9}
!9 = !{!"llvm.loop.mustprogress"}
!10 = distinct !{!10, !9}


; Effective O3 passes: CorrelatedValuePropagationPass,GVNPass,GlobalOptPass,IndVarSimplifyPass,InferFunctionAttrsPass,InstCombinePass,JumpThreadingPass,LICMPass,LoopRotatePass,LoopSimplifyCFGPass,LoopSimplifyPass,LoopUnrollPass,PostOrderFunctionAttrsPass,SROAPass,SimplifyCFGPass,TailCallElimPass