; LLVM IR from ermig1979/Simd :: src/Simd/SimdBaseGrayToBgra.ll (ZN4Simd4Base10GrayToBgraEPKhmmmPhmh)

; 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 @_ZN4Simd4Base10GrayToBgraEPKhmmmPhmh(ptr noundef %0, i64 noundef %1, i64 noundef %2, i64 noundef %3, ptr noundef %4, i64 noundef %5, i8 noundef zeroext %6) #0 {
  %8 = alloca ptr, align 8
  %9 = alloca i64, align 8
  %10 = alloca i64, align 8
  %11 = alloca i64, align 8
  %12 = alloca ptr, align 8
  %13 = alloca i64, align 8
  %14 = alloca i8, align 1
  %15 = alloca i64, align 8
  %16 = alloca i32, align 4
  %17 = alloca i64, align 8
  store ptr %0, ptr %8, align 8, !tbaa !5
  store i64 %1, ptr %9, align 8, !tbaa !9
  store i64 %2, ptr %10, align 8, !tbaa !9
  store i64 %3, ptr %11, align 8, !tbaa !9
  store ptr %4, ptr %12, align 8, !tbaa !5
  store i64 %5, ptr %13, align 8, !tbaa !9
  store i8 %6, ptr %14, align 1, !tbaa !11
  call void @llvm.lifetime.start.p0(i64 8, ptr %15) #3
  store i64 0, ptr %15, align 8, !tbaa !9
  br label %18

18:                                               ; preds = %51, %7
  %19 = load i64, ptr %15, align 8, !tbaa !9
  %20 = load i64, ptr %10, align 8, !tbaa !9
  %21 = icmp ult i64 %19, %20
  br i1 %21, label %23, label %22

22:                                               ; preds = %18
  store i32 2, ptr %16, align 4
  call void @llvm.lifetime.end.p0(i64 8, ptr %15) #3
  br label %54

23:                                               ; preds = %18
  call void @llvm.lifetime.start.p0(i64 8, ptr %17) #3
  store i64 0, ptr %17, align 8, !tbaa !9
  br label %24

24:                                               ; preds = %41, %23
  %25 = load i64, ptr %17, align 8, !tbaa !9
  %26 = load i64, ptr %9, align 8, !tbaa !9
  %27 = icmp ult i64 %25, %26
  br i1 %27, label %29, label %28

28:                                               ; preds = %24
  store i32 5, ptr %16, align 4
  call void @llvm.lifetime.end.p0(i64 8, ptr %17) #3
  br label %44

29:                                               ; preds = %24
  %30 = load ptr, ptr %8, align 8, !tbaa !5
  %31 = load i64, ptr %17, align 8, !tbaa !9
  %32 = getelementptr inbounds i8, ptr %30, i64 %31
  %33 = load i8, ptr %32, align 1, !tbaa !11
  %34 = zext i8 %33 to i32
  %35 = load i8, ptr %14, align 1, !tbaa !11
  %36 = zext i8 %35 to i32
  %37 = call noundef i32 @_ZN4Simd4Base10GrayToBgraEjj(i32 noundef %34, i32 noundef %36)
  %38 = load ptr, ptr %12, align 8, !tbaa !5
  %39 = load i64, ptr %17, align 8, !tbaa !9
  %40 = getelementptr inbounds i32, ptr %38, i64 %39
  store i32 %37, ptr %40, align 4, !tbaa !12
  br label %41

41:                                               ; preds = %29
  %42 = load i64, ptr %17, align 8, !tbaa !9
  %43 = add i64 %42, 1
  store i64 %43, ptr %17, align 8, !tbaa !9
  br label %24, !llvm.loop !14

44:                                               ; preds = %28
  %45 = load i64, ptr %11, align 8, !tbaa !9
  %46 = load ptr, ptr %8, align 8, !tbaa !5
  %47 = getelementptr inbounds i8, ptr %46, i64 %45
  store ptr %47, ptr %8, align 8, !tbaa !5
  %48 = load i64, ptr %13, align 8, !tbaa !9
  %49 = load ptr, ptr %12, align 8, !tbaa !5
  %50 = getelementptr inbounds i8, ptr %49, i64 %48
  store ptr %50, ptr %12, align 8, !tbaa !5
  br label %51

51:                                               ; preds = %44
  %52 = load i64, ptr %15, align 8, !tbaa !9
  %53 = add i64 %52, 1
  store i64 %53, ptr %15, align 8, !tbaa !9
  br label %18, !llvm.loop !16

54:                                               ; preds = %22
  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 nounwind uwtable
declare dso_local noundef i32 @_ZN4Simd4Base10GrayToBgraEjj(i32 noundef, 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 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++ TBAA"}
!9 = !{!10, !10, i64 0}
!10 = !{!"long", !7, i64 0}
!11 = !{!7, !7, i64 0}
!12 = !{!13, !13, i64 0}
!13 = !{!"int", !7, i64 0}
!14 = distinct !{!14, !15}
!15 = !{!"llvm.loop.mustprogress"}
!16 = distinct !{!16, !15}


; 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 nounwind uwtable
define dso_local void @_ZN4Simd4Base10GrayToBgraEPKhmmmPhmh(ptr nocapture noundef readonly %0, i64 noundef %1, i64 noundef %2, i64 noundef %3, ptr nocapture noundef writeonly %4, i64 noundef %5, i8 noundef zeroext %6) local_unnamed_addr #0 {
  %.not = icmp eq i64 %2, 0
  br i1 %.not, label %._crit_edge21, label %.preheader.lr.ph

.preheader.lr.ph:                                 ; preds = %7
  %.not22 = icmp eq i64 %1, 0
  %8 = zext i8 %6 to i32
  br i1 %.not22, label %._crit_edge21, label %.preheader.us

.preheader.us:                                    ; preds = %.preheader.lr.ph, %._crit_edge.us
  %.01420.us = phi i64 [ %18, %._crit_edge.us ], [ 0, %.preheader.lr.ph ]
  %.01519.us = phi ptr [ %16, %._crit_edge.us ], [ %0, %.preheader.lr.ph ]
  %.01618.us = phi ptr [ %17, %._crit_edge.us ], [ %4, %.preheader.lr.ph ]
  br label %9

9:                                                ; preds = %.preheader.us, %9
  %.017.us = phi i64 [ 0, %.preheader.us ], [ %15, %9 ]
  %10 = getelementptr inbounds i8, ptr %.01519.us, i64 %.017.us
  %11 = load i8, ptr %10, align 1, !tbaa !5
  %12 = zext i8 %11 to i32
  %13 = tail call noundef i32 @_ZN4Simd4Base10GrayToBgraEjj(i32 noundef %12, i32 noundef %8)
  %14 = getelementptr inbounds i32, ptr %.01618.us, i64 %.017.us
  store i32 %13, ptr %14, align 4, !tbaa !8
  %15 = add nuw i64 %.017.us, 1
  %exitcond.not = icmp eq i64 %15, %1
  br i1 %exitcond.not, label %._crit_edge.us, label %9, !llvm.loop !10

._crit_edge.us:                                   ; preds = %9
  %16 = getelementptr inbounds i8, ptr %.01519.us, i64 %3
  %17 = getelementptr inbounds i8, ptr %.01618.us, i64 %5
  %18 = add nuw i64 %.01420.us, 1
  %exitcond24.not = icmp eq i64 %18, %2
  br i1 %exitcond24.not, label %._crit_edge21, label %.preheader.us, !llvm.loop !12

._crit_edge21:                                    ; preds = %._crit_edge.us, %.preheader.lr.ph, %7
  ret void
}

; Function Attrs: alwaysinline mustprogress nounwind uwtable
declare dso_local noundef i32 @_ZN4Simd4Base10GrayToBgraEjj(i32 noundef, i32 noundef) local_unnamed_addr #1

attributes #0 = { mustprogress 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 = { alwaysinline mustprogress 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 = !{!"omnipotent char", !7, i64 0}
!7 = !{!"Simple C++ TBAA"}
!8 = !{!9, !9, i64 0}
!9 = !{!"int", !6, i64 0}
!10 = distinct !{!10, !11}
!11 = !{!"llvm.loop.mustprogress"}
!12 = distinct !{!12, !11}


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