; LLVM IR from ermig1979/Simd :: src/Simd/SimdBaseBgrToBgra.ll (ZN4Simd4Base9RgbToBgraEPKhmmmPhmh)

; 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: 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

; Function Attrs: mustprogress nounwind uwtable
define dso_local void @_ZN4Simd4Base9RgbToBgraEPKhmmmPhmh(ptr noundef %0, i64 noundef %1, i64 noundef %2, i64 noundef %3, ptr noundef %4, i64 noundef %5, i8 noundef zeroext %6) #1 {
  %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 i64, align 8
  %17 = alloca i64, align 8
  %18 = alloca i32, align 4
  %19 = 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) #2
  %20 = load i64, ptr %11, align 8, !tbaa !9
  %21 = load i64, ptr %9, align 8, !tbaa !9
  %22 = mul i64 %21, 3
  %23 = sub i64 %20, %22
  store i64 %23, ptr %15, align 8, !tbaa !9
  call void @llvm.lifetime.start.p0(i64 8, ptr %16) #2
  %24 = load i64, ptr %13, align 8, !tbaa !9
  %25 = load i64, ptr %9, align 8, !tbaa !9
  %26 = mul i64 %25, 4
  %27 = sub i64 %24, %26
  store i64 %27, ptr %16, align 8, !tbaa !9
  call void @llvm.lifetime.start.p0(i64 8, ptr %17) #2
  store i64 0, ptr %17, align 8, !tbaa !9
  br label %28

28:                                               ; preds = %72, %7
  %29 = load i64, ptr %17, align 8, !tbaa !9
  %30 = load i64, ptr %10, align 8, !tbaa !9
  %31 = icmp ult i64 %29, %30
  br i1 %31, label %33, label %32

32:                                               ; preds = %28
  store i32 2, ptr %18, align 4
  call void @llvm.lifetime.end.p0(i64 8, ptr %17) #2
  br label %75

33:                                               ; preds = %28
  call void @llvm.lifetime.start.p0(i64 8, ptr %19) #2
  store i64 0, ptr %19, align 8, !tbaa !9
  br label %34

34:                                               ; preds = %58, %33
  %35 = load i64, ptr %19, align 8, !tbaa !9
  %36 = load i64, ptr %9, align 8, !tbaa !9
  %37 = icmp ult i64 %35, %36
  br i1 %37, label %39, label %38

38:                                               ; preds = %34
  store i32 5, ptr %18, align 4
  call void @llvm.lifetime.end.p0(i64 8, ptr %19) #2
  br label %65

39:                                               ; preds = %34
  %40 = load ptr, ptr %8, align 8, !tbaa !5
  %41 = getelementptr inbounds i8, ptr %40, i64 2
  %42 = load i8, ptr %41, align 1, !tbaa !11
  %43 = load ptr, ptr %12, align 8, !tbaa !5
  %44 = getelementptr inbounds i8, ptr %43, i64 0
  store i8 %42, ptr %44, align 1, !tbaa !11
  %45 = load ptr, ptr %8, align 8, !tbaa !5
  %46 = getelementptr inbounds i8, ptr %45, i64 1
  %47 = load i8, ptr %46, align 1, !tbaa !11
  %48 = load ptr, ptr %12, align 8, !tbaa !5
  %49 = getelementptr inbounds i8, ptr %48, i64 1
  store i8 %47, ptr %49, align 1, !tbaa !11
  %50 = load ptr, ptr %8, align 8, !tbaa !5
  %51 = getelementptr inbounds i8, ptr %50, i64 0
  %52 = load i8, ptr %51, align 1, !tbaa !11
  %53 = load ptr, ptr %12, align 8, !tbaa !5
  %54 = getelementptr inbounds i8, ptr %53, i64 2
  store i8 %52, ptr %54, align 1, !tbaa !11
  %55 = load i8, ptr %14, align 1, !tbaa !11
  %56 = load ptr, ptr %12, align 8, !tbaa !5
  %57 = getelementptr inbounds i8, ptr %56, i64 3
  store i8 %55, ptr %57, align 1, !tbaa !11
  br label %58

58:                                               ; preds = %39
  %59 = load i64, ptr %19, align 8, !tbaa !9
  %60 = add i64 %59, 1
  store i64 %60, ptr %19, align 8, !tbaa !9
  %61 = load ptr, ptr %8, align 8, !tbaa !5
  %62 = getelementptr inbounds i8, ptr %61, i64 3
  store ptr %62, ptr %8, align 8, !tbaa !5
  %63 = load ptr, ptr %12, align 8, !tbaa !5
  %64 = getelementptr inbounds i8, ptr %63, i64 4
  store ptr %64, ptr %12, align 8, !tbaa !5
  br label %34, !llvm.loop !12

65:                                               ; preds = %38
  %66 = load i64, ptr %15, align 8, !tbaa !9
  %67 = load ptr, ptr %8, align 8, !tbaa !5
  %68 = getelementptr inbounds i8, ptr %67, i64 %66
  store ptr %68, ptr %8, align 8, !tbaa !5
  %69 = load i64, ptr %16, align 8, !tbaa !9
  %70 = load ptr, ptr %12, align 8, !tbaa !5
  %71 = getelementptr inbounds i8, ptr %70, i64 %69
  store ptr %71, ptr %12, align 8, !tbaa !5
  br label %72

72:                                               ; preds = %65
  %73 = load i64, ptr %17, align 8, !tbaa !9
  %74 = add i64 %73, 1
  store i64 %74, ptr %17, align 8, !tbaa !9
  br label %28, !llvm.loop !14

75:                                               ; preds = %32
  call void @llvm.lifetime.end.p0(i64 8, ptr %16) #2
  call void @llvm.lifetime.end.p0(i64 8, ptr %15) #2
  ret void
}

attributes #0 = { nocallback nofree nosync nounwind willreturn memory(argmem: readwrite) }
attributes #1 = { 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 #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, !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 nofree norecurse nosync nounwind memory(readwrite, inaccessiblemem: none) uwtable
define dso_local void @_ZN4Simd4Base9RgbToBgraEPKhmmmPhmh(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 {
  %.neg = mul i64 %1, -3
  %8 = shl i64 %1, 2
  %9 = sub i64 %5, %8
  %.not = icmp eq i64 %2, 0
  %.not35 = icmp eq i64 %1, 0
  %or.cond = or i1 %.not, %.not35
  br i1 %or.cond, label %._crit_edge34, label %.preheader.us.preheader

.preheader.us.preheader:                          ; preds = %7
  %xtraiter = and i64 %1, 1
  %10 = icmp eq i64 %1, 1
  %unroll_iter = and i64 %1, -2
  %lcmp.mod.not = icmp eq i64 %xtraiter, 0
  br label %.preheader.us

.preheader.us:                                    ; preds = %.preheader.us.preheader, %._crit_edge.us
  %.02333.us = phi i64 [ %44, %._crit_edge.us ], [ 0, %.preheader.us.preheader ]
  %.02432.us = phi ptr [ %42, %._crit_edge.us ], [ %0, %.preheader.us.preheader ]
  %.02531.us = phi ptr [ %43, %._crit_edge.us ], [ %4, %.preheader.us.preheader ]
  br i1 %10, label %._crit_edge.us.unr-lcssa, label %.preheader.us.new

.preheader.us.new:                                ; preds = %.preheader.us, %.preheader.us.new
  %.128.us = phi ptr [ %29, %.preheader.us.new ], [ %.02432.us, %.preheader.us ]
  %.12627.us = phi ptr [ %30, %.preheader.us.new ], [ %.02531.us, %.preheader.us ]
  %niter = phi i64 [ %niter.next.1, %.preheader.us.new ], [ 0, %.preheader.us ]
  %11 = getelementptr inbounds i8, ptr %.128.us, i64 2
  %12 = load i8, ptr %11, align 1, !tbaa !5
  store i8 %12, ptr %.12627.us, align 1, !tbaa !5
  %13 = getelementptr inbounds i8, ptr %.128.us, i64 1
  %14 = load i8, ptr %13, align 1, !tbaa !5
  %15 = getelementptr inbounds i8, ptr %.12627.us, i64 1
  store i8 %14, ptr %15, align 1, !tbaa !5
  %16 = load i8, ptr %.128.us, align 1, !tbaa !5
  %17 = getelementptr inbounds i8, ptr %.12627.us, i64 2
  store i8 %16, ptr %17, align 1, !tbaa !5
  %18 = getelementptr inbounds i8, ptr %.12627.us, i64 3
  store i8 %6, ptr %18, align 1, !tbaa !5
  %19 = getelementptr inbounds i8, ptr %.128.us, i64 3
  %20 = getelementptr inbounds i8, ptr %.12627.us, i64 4
  %21 = getelementptr inbounds i8, ptr %.128.us, i64 5
  %22 = load i8, ptr %21, align 1, !tbaa !5
  store i8 %22, ptr %20, align 1, !tbaa !5
  %23 = getelementptr inbounds i8, ptr %.128.us, i64 4
  %24 = load i8, ptr %23, align 1, !tbaa !5
  %25 = getelementptr inbounds i8, ptr %.12627.us, i64 5
  store i8 %24, ptr %25, align 1, !tbaa !5
  %26 = load i8, ptr %19, align 1, !tbaa !5
  %27 = getelementptr inbounds i8, ptr %.12627.us, i64 6
  store i8 %26, ptr %27, align 1, !tbaa !5
  %28 = getelementptr inbounds i8, ptr %.12627.us, i64 7
  store i8 %6, ptr %28, align 1, !tbaa !5
  %29 = getelementptr inbounds i8, ptr %.128.us, i64 6
  %30 = getelementptr inbounds i8, ptr %.12627.us, i64 8
  %niter.next.1 = add i64 %niter, 2
  %niter.ncmp.1 = icmp eq i64 %niter.next.1, %unroll_iter
  br i1 %niter.ncmp.1, label %._crit_edge.us.unr-lcssa, label %.preheader.us.new, !llvm.loop !8

._crit_edge.us.unr-lcssa:                         ; preds = %.preheader.us.new, %.preheader.us
  %.lcssa41.ph = phi ptr [ poison, %.preheader.us ], [ %29, %.preheader.us.new ]
  %.lcssa.ph = phi ptr [ poison, %.preheader.us ], [ %30, %.preheader.us.new ]
  %.128.us.unr = phi ptr [ %.02432.us, %.preheader.us ], [ %29, %.preheader.us.new ]
  %.12627.us.unr = phi ptr [ %.02531.us, %.preheader.us ], [ %30, %.preheader.us.new ]
  br i1 %lcmp.mod.not, label %._crit_edge.us, label %._crit_edge.us.epilog-lcssa

._crit_edge.us.epilog-lcssa:                      ; preds = %._crit_edge.us.unr-lcssa
  %31 = getelementptr inbounds i8, ptr %.128.us.unr, i64 2
  %32 = load i8, ptr %31, align 1, !tbaa !5
  store i8 %32, ptr %.12627.us.unr, align 1, !tbaa !5
  %33 = getelementptr inbounds i8, ptr %.128.us.unr, i64 1
  %34 = load i8, ptr %33, align 1, !tbaa !5
  %35 = getelementptr inbounds i8, ptr %.12627.us.unr, i64 1
  store i8 %34, ptr %35, align 1, !tbaa !5
  %36 = load i8, ptr %.128.us.unr, align 1, !tbaa !5
  %37 = getelementptr inbounds i8, ptr %.12627.us.unr, i64 2
  store i8 %36, ptr %37, align 1, !tbaa !5
  %38 = getelementptr inbounds i8, ptr %.12627.us.unr, i64 3
  store i8 %6, ptr %38, align 1, !tbaa !5
  %39 = getelementptr inbounds i8, ptr %.128.us.unr, i64 3
  %40 = getelementptr inbounds i8, ptr %.12627.us.unr, i64 4
  br label %._crit_edge.us

._crit_edge.us:                                   ; preds = %._crit_edge.us.unr-lcssa, %._crit_edge.us.epilog-lcssa
  %.lcssa41 = phi ptr [ %.lcssa41.ph, %._crit_edge.us.unr-lcssa ], [ %39, %._crit_edge.us.epilog-lcssa ]
  %.lcssa = phi ptr [ %.lcssa.ph, %._crit_edge.us.unr-lcssa ], [ %40, %._crit_edge.us.epilog-lcssa ]
  %41 = getelementptr i8, ptr %.lcssa41, i64 %.neg
  %42 = getelementptr i8, ptr %41, i64 %3
  %43 = getelementptr inbounds i8, ptr %.lcssa, i64 %9
  %44 = add nuw i64 %.02333.us, 1
  %exitcond38.not = icmp eq i64 %44, %2
  br i1 %exitcond38.not, label %._crit_edge34, label %.preheader.us, !llvm.loop !10

._crit_edge34:                                    ; preds = %._crit_edge.us, %7
  ret void
}

attributes #0 = { mustprogress nofree norecurse nosync nounwind memory(readwrite, inaccessiblemem: none) 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,EarlyCSEPass,GVNPass,GlobalOptPass,IndVarSimplifyPass,InferFunctionAttrsPass,InstCombinePass,InstSimplifyPass,JumpThreadingPass,LCSSAPass,LICMPass,LoopInstSimplifyPass,LoopRotatePass,LoopSimplifyCFGPass,LoopSimplifyPass,LoopUnrollPass,PostOrderFunctionAttrsPass,ReassociatePass,SROAPass,SimplifyCFGPass