; LLVM IR from ronan-kerviche/glip-lib :: GLIP-Lib/src/Core (HdlTextureTools)

; 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.Glip::CoreGL::HdlTextureFormatDescriptor" = type { i32, i32, i32, i32, i32, [4 x i32], [4 x i32], [4 x i32], i8, i8, i8 }

; Function Attrs: mustprogress nounwind uwtable
declare dso_local noundef i32 @_ZNK4Glip6CoreGL26HdlTextureFormatDescriptor15getChannelIndexEj(ptr noundef nonnull align 4 dereferenceable(72), i32 noundef) #0 align 2

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

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

; Function Attrs: mustprogress uwtable
define dso_local void @_ZN4Glip6CoreGL26HdlTextureFormatDescriptor10getShuffleERKS1_S3_Pci(ptr noundef nonnull align 4 dereferenceable(72) %0, ptr noundef nonnull align 4 dereferenceable(72) %1, ptr noundef %2, i32 noundef %3) #2 align 2 {
  %5 = alloca ptr, align 8
  %6 = alloca ptr, align 8
  %7 = alloca ptr, align 8
  %8 = alloca i32, align 4
  %9 = alloca [4 x i8], align 1
  %10 = alloca i32, align 4
  store ptr %0, ptr %5, align 8, !tbaa !5
  store ptr %1, ptr %6, align 8, !tbaa !5
  store ptr %2, ptr %7, align 8, !tbaa !5
  store i32 %3, ptr %8, align 4, !tbaa !9
  call void @llvm.lifetime.start.p0(i64 4, ptr %9) #5
  call void @llvm.lifetime.start.p0(i64 4, ptr %10) #5
  store i32 0, ptr %10, align 4, !tbaa !9
  br label %11

11:                                               ; preds = %31, %4
  %12 = load i32, ptr %10, align 4, !tbaa !9
  %13 = load ptr, ptr %5, align 8, !tbaa !5
  %14 = getelementptr inbounds %"struct.Glip::CoreGL::HdlTextureFormatDescriptor", ptr %13, i32 0, i32 4
  %15 = load i32, ptr %14, align 4, !tbaa !11
  %16 = icmp slt i32 %12, %15
  br i1 %16, label %18, label %17

17:                                               ; preds = %11
  call void @llvm.lifetime.end.p0(i64 4, ptr %10) #5
  br label %34

18:                                               ; preds = %11
  %19 = load ptr, ptr %6, align 8, !tbaa !5
  %20 = load ptr, ptr %5, align 8, !tbaa !5
  %21 = getelementptr inbounds %"struct.Glip::CoreGL::HdlTextureFormatDescriptor", ptr %20, i32 0, i32 5
  %22 = load i32, ptr %10, align 4, !tbaa !9
  %23 = sext i32 %22 to i64
  %24 = getelementptr inbounds [4 x i32], ptr %21, i64 0, i64 %23
  %25 = load i32, ptr %24, align 4, !tbaa !9
  %26 = call noundef i32 @_ZNK4Glip6CoreGL26HdlTextureFormatDescriptor15getChannelIndexEj(ptr noundef nonnull align 4 dereferenceable(72) %19, i32 noundef %25)
  %27 = trunc i32 %26 to i8
  %28 = load i32, ptr %10, align 4, !tbaa !9
  %29 = sext i32 %28 to i64
  %30 = getelementptr inbounds [4 x i8], ptr %9, i64 0, i64 %29
  store i8 %27, ptr %30, align 1, !tbaa !14
  br label %31

31:                                               ; preds = %18
  %32 = load i32, ptr %10, align 4, !tbaa !9
  %33 = add nsw i32 %32, 1
  store i32 %33, ptr %10, align 4, !tbaa !9
  br label %11, !llvm.loop !15

34:                                               ; preds = %17
  %35 = load ptr, ptr %7, align 8, !tbaa !5
  %36 = getelementptr inbounds [4 x i8], ptr %9, i64 0, i64 0
  %37 = load ptr, ptr %5, align 8, !tbaa !5
  %38 = getelementptr inbounds %"struct.Glip::CoreGL::HdlTextureFormatDescriptor", ptr %37, i32 0, i32 4
  %39 = call noundef nonnull align 4 dereferenceable(4) ptr @_ZSt3minIiERKT_S2_S2_(ptr noundef nonnull align 4 dereferenceable(4) %38, ptr noundef nonnull align 4 dereferenceable(4) %8)
  %40 = load i32, ptr %39, align 4, !tbaa !9
  %41 = sext i32 %40 to i64
  call void @llvm.memcpy.p0.p0.i64(ptr align 1 %35, ptr align 1 %36, i64 %41, i1 false)
  call void @llvm.lifetime.end.p0(i64 4, ptr %9) #5
  ret void
}

; Function Attrs: inlinehint mustprogress nounwind uwtable
declare dso_local noundef nonnull align 4 dereferenceable(4) ptr @_ZSt3minIiERKT_S2_S2_(ptr noundef nonnull align 4 dereferenceable(4), ptr noundef nonnull align 4 dereferenceable(4)) #3

; Function Attrs: nocallback nofree nounwind willreturn memory(argmem: readwrite)
declare void @llvm.memcpy.p0.p0.i64(ptr noalias nocapture writeonly, ptr noalias nocapture readonly, i64, i1 immarg) #4

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 = { nocallback nofree nosync nounwind willreturn memory(argmem: readwrite) }
attributes #2 = { 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 = { inlinehint 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 #4 = { nocallback nofree nounwind willreturn memory(argmem: readwrite) }
attributes #5 = { 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 = !{!"int", !7, i64 0}
!11 = !{!12, !10, i64 16}
!12 = !{!"_ZTSN4Glip6CoreGL26HdlTextureFormatDescriptorE", !10, i64 0, !10, i64 4, !10, i64 8, !10, i64 12, !10, i64 16, !7, i64 20, !7, i64 36, !7, i64 52, !13, i64 68, !13, i64 69, !13, i64 70}
!13 = !{!"bool", !7, i64 0}
!14 = !{!7, !7, i64 0}
!15 = distinct !{!15, !16}
!16 = !{!"llvm.loop.mustprogress"}


; 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
declare dso_local noundef i32 @_ZNK4Glip6CoreGL26HdlTextureFormatDescriptor15getChannelIndexEj(ptr noundef nonnull align 4 dereferenceable(72), i32 noundef) local_unnamed_addr #0 align 2

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

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

; Function Attrs: mustprogress nounwind uwtable
define dso_local void @_ZN4Glip6CoreGL26HdlTextureFormatDescriptor10getShuffleERKS1_S3_Pci(ptr noundef nonnull align 4 dereferenceable(72) %0, ptr noundef nonnull align 4 dereferenceable(72) %1, ptr nocapture noundef writeonly %2, i32 noundef %3) local_unnamed_addr #0 align 2 {
  %5 = alloca i32, align 4
  %6 = alloca [4 x i8], align 1
  store i32 %3, ptr %5, align 4, !tbaa !5
  call void @llvm.lifetime.start.p0(i64 4, ptr nonnull %6) #4
  %7 = getelementptr inbounds i8, ptr %0, i64 16
  %8 = load i32, ptr %7, align 4, !tbaa !9
  %9 = icmp sgt i32 %8, 0
  br i1 %9, label %.lr.ph, label %._crit_edge

.lr.ph:                                           ; preds = %4
  %10 = getelementptr inbounds i8, ptr %0, i64 20
  br label %14

._crit_edge:                                      ; preds = %14, %4
  %11 = call noundef nonnull align 4 dereferenceable(4) ptr @_ZSt3minIiERKT_S2_S2_(ptr noundef nonnull align 4 dereferenceable(4) %7, ptr noundef nonnull align 4 dereferenceable(4) %5)
  %12 = load i32, ptr %11, align 4, !tbaa !5
  %13 = sext i32 %12 to i64
  call void @llvm.memcpy.p0.p0.i64(ptr align 1 %2, ptr nonnull align 1 %6, i64 %13, i1 false)
  call void @llvm.lifetime.end.p0(i64 4, ptr nonnull %6) #4
  ret void

14:                                               ; preds = %.lr.ph, %14
  %indvars.iv = phi i64 [ 0, %.lr.ph ], [ %indvars.iv.next, %14 ]
  %15 = getelementptr inbounds [4 x i32], ptr %10, i64 0, i64 %indvars.iv
  %16 = load i32, ptr %15, align 4, !tbaa !5
  %17 = tail call noundef i32 @_ZNK4Glip6CoreGL26HdlTextureFormatDescriptor15getChannelIndexEj(ptr noundef nonnull align 4 dereferenceable(72) %1, i32 noundef %16)
  %18 = trunc i32 %17 to i8
  %19 = getelementptr inbounds [4 x i8], ptr %6, i64 0, i64 %indvars.iv
  store i8 %18, ptr %19, align 1, !tbaa !12
  %indvars.iv.next = add nuw nsw i64 %indvars.iv, 1
  %20 = load i32, ptr %7, align 4, !tbaa !9
  %21 = sext i32 %20 to i64
  %22 = icmp slt i64 %indvars.iv.next, %21
  br i1 %22, label %14, label %._crit_edge, !llvm.loop !13
}

; Function Attrs: inlinehint mustprogress nounwind uwtable
declare dso_local noundef nonnull align 4 dereferenceable(4) ptr @_ZSt3minIiERKT_S2_S2_(ptr noundef nonnull align 4 dereferenceable(4), ptr noundef nonnull align 4 dereferenceable(4)) local_unnamed_addr #2

; Function Attrs: mustprogress nocallback nofree nounwind willreturn memory(argmem: readwrite)
declare void @llvm.memcpy.p0.p0.i64(ptr noalias nocapture writeonly, ptr noalias nocapture readonly, i64, i1 immarg) #3

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 = { mustprogress nocallback nofree nosync nounwind willreturn memory(argmem: readwrite) }
attributes #2 = { inlinehint 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 = { mustprogress nocallback nofree nounwind willreturn memory(argmem: readwrite) }
attributes #4 = { 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 = !{!"int", !7, i64 0}
!7 = !{!"omnipotent char", !8, i64 0}
!8 = !{!"Simple C++ TBAA"}
!9 = !{!10, !6, i64 16}
!10 = !{!"_ZTSN4Glip6CoreGL26HdlTextureFormatDescriptorE", !6, i64 0, !6, i64 4, !6, i64 8, !6, i64 12, !6, i64 16, !7, i64 20, !7, i64 36, !7, i64 52, !11, i64 68, !11, i64 69, !11, i64 70}
!11 = !{!"bool", !7, i64 0}
!12 = !{!7, !7, i64 0}
!13 = distinct !{!13, !14}
!14 = !{!"llvm.loop.mustprogress"}


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