; LLVM IR from glaretechnologies/substrata :: opus/opus-1.3.1/src (mapping_matrix)

; 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.MappingMatrix = type { i32, i32, i32 }

; 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: nounwind uwtable
declare dso_local ptr @mapping_matrix_get_data(ptr noundef) #1

; Function Attrs: nounwind uwtable
define dso_local void @mapping_matrix_init(ptr noundef %0, i32 noundef %1, i32 noundef %2, i32 noundef %3, ptr noundef %4, i32 noundef %5) #1 {
  %7 = alloca ptr, align 8
  %8 = alloca i32, align 4
  %9 = alloca i32, align 4
  %10 = alloca i32, align 4
  %11 = alloca ptr, align 8
  %12 = alloca i32, align 4
  %13 = alloca i32, align 4
  %14 = alloca ptr, align 8
  store ptr %0, ptr %7, align 8, !tbaa !5
  store i32 %1, ptr %8, align 4, !tbaa !9
  store i32 %2, ptr %9, align 4, !tbaa !9
  store i32 %3, ptr %10, align 4, !tbaa !9
  store ptr %4, ptr %11, align 8, !tbaa !5
  store i32 %5, ptr %12, align 4, !tbaa !9
  call void @llvm.lifetime.start.p0(i64 4, ptr %13) #2
  call void @llvm.lifetime.start.p0(i64 8, ptr %14) #2
  %15 = load i32, ptr %12, align 4, !tbaa !9
  %16 = load i32, ptr %8, align 4, !tbaa !9
  %17 = load ptr, ptr %7, align 8, !tbaa !5
  %18 = getelementptr inbounds %struct.MappingMatrix, ptr %17, i32 0, i32 0
  store i32 %16, ptr %18, align 4, !tbaa !11
  %19 = load i32, ptr %9, align 4, !tbaa !9
  %20 = load ptr, ptr %7, align 8, !tbaa !5
  %21 = getelementptr inbounds %struct.MappingMatrix, ptr %20, i32 0, i32 1
  store i32 %19, ptr %21, align 4, !tbaa !13
  %22 = load i32, ptr %10, align 4, !tbaa !9
  %23 = load ptr, ptr %7, align 8, !tbaa !5
  %24 = getelementptr inbounds %struct.MappingMatrix, ptr %23, i32 0, i32 2
  store i32 %22, ptr %24, align 4, !tbaa !14
  %25 = load ptr, ptr %7, align 8, !tbaa !5
  %26 = call ptr @mapping_matrix_get_data(ptr noundef %25)
  store ptr %26, ptr %14, align 8, !tbaa !5
  store i32 0, ptr %13, align 4, !tbaa !9
  br label %27

27:                                               ; preds = %43, %6
  %28 = load i32, ptr %13, align 4, !tbaa !9
  %29 = load i32, ptr %8, align 4, !tbaa !9
  %30 = load i32, ptr %9, align 4, !tbaa !9
  %31 = mul nsw i32 %29, %30
  %32 = icmp slt i32 %28, %31
  br i1 %32, label %33, label %46

33:                                               ; preds = %27
  %34 = load ptr, ptr %11, align 8, !tbaa !5
  %35 = load i32, ptr %13, align 4, !tbaa !9
  %36 = sext i32 %35 to i64
  %37 = getelementptr inbounds i16, ptr %34, i64 %36
  %38 = load i16, ptr %37, align 2, !tbaa !15
  %39 = load ptr, ptr %14, align 8, !tbaa !5
  %40 = load i32, ptr %13, align 4, !tbaa !9
  %41 = sext i32 %40 to i64
  %42 = getelementptr inbounds i16, ptr %39, i64 %41
  store i16 %38, ptr %42, align 2, !tbaa !15
  br label %43

43:                                               ; preds = %33
  %44 = load i32, ptr %13, align 4, !tbaa !9
  %45 = add nsw i32 %44, 1
  store i32 %45, ptr %13, align 4, !tbaa !9
  br label %27, !llvm.loop !17

46:                                               ; preds = %27
  call void @llvm.lifetime.end.p0(i64 8, ptr %14) #2
  call void @llvm.lifetime.end.p0(i64 4, ptr %13) #2
  ret void
}

attributes #0 = { nocallback nofree nosync nounwind willreturn memory(argmem: readwrite) }
attributes #1 = { 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/C++ TBAA"}
!9 = !{!10, !10, i64 0}
!10 = !{!"int", !7, i64 0}
!11 = !{!12, !10, i64 0}
!12 = !{!"MappingMatrix", !10, i64 0, !10, i64 4, !10, i64 8}
!13 = !{!12, !10, i64 4}
!14 = !{!12, !10, i64 8}
!15 = !{!16, !16, i64 0}
!16 = !{!"short", !7, i64 0}
!17 = distinct !{!17, !18}
!18 = !{!"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: nounwind uwtable
declare dso_local ptr @mapping_matrix_get_data(ptr noundef) local_unnamed_addr #0

; Function Attrs: nounwind uwtable
define dso_local void @mapping_matrix_init(ptr noundef %0, i32 noundef %1, i32 noundef %2, i32 noundef %3, ptr nocapture noundef readonly %4, i32 noundef %5) local_unnamed_addr #0 {
  store i32 %1, ptr %0, align 4, !tbaa !5
  %7 = getelementptr inbounds i8, ptr %0, i64 4
  store i32 %2, ptr %7, align 4, !tbaa !10
  %8 = getelementptr inbounds i8, ptr %0, i64 8
  store i32 %3, ptr %8, align 4, !tbaa !11
  %9 = tail call ptr @mapping_matrix_get_data(ptr noundef nonnull %0)
  %10 = mul nsw i32 %2, %1
  %11 = icmp sgt i32 %10, 0
  br i1 %11, label %.lr.ph.preheader, label %._crit_edge

.lr.ph.preheader:                                 ; preds = %6
  %12 = ptrtoint ptr %9 to i64
  %13 = ptrtoint ptr %4 to i64
  %wide.trip.count = zext nneg i32 %10 to i64
  %min.iters.check = icmp ult i32 %10, 16
  %14 = sub i64 %12, %13
  %diff.check = icmp ult i64 %14, 32
  %or.cond = select i1 %min.iters.check, i1 true, i1 %diff.check
  br i1 %or.cond, label %.lr.ph.preheader18, label %vector.ph

vector.ph:                                        ; preds = %.lr.ph.preheader
  %n.vec = and i64 %wide.trip.count, 2147483632
  br label %vector.body

vector.body:                                      ; preds = %vector.body, %vector.ph
  %index = phi i64 [ 0, %vector.ph ], [ %index.next, %vector.body ]
  %15 = getelementptr inbounds i16, ptr %4, i64 %index
  %16 = getelementptr inbounds i8, ptr %15, i64 16
  %wide.load = load <8 x i16>, ptr %15, align 2, !tbaa !12
  %wide.load17 = load <8 x i16>, ptr %16, align 2, !tbaa !12
  %17 = getelementptr inbounds i16, ptr %9, i64 %index
  %18 = getelementptr inbounds i8, ptr %17, i64 16
  store <8 x i16> %wide.load, ptr %17, align 2, !tbaa !12
  store <8 x i16> %wide.load17, ptr %18, align 2, !tbaa !12
  %index.next = add nuw i64 %index, 16
  %19 = icmp eq i64 %index.next, %n.vec
  br i1 %19, label %middle.block, label %vector.body, !llvm.loop !14

middle.block:                                     ; preds = %vector.body
  %cmp.n = icmp eq i64 %n.vec, %wide.trip.count
  br i1 %cmp.n, label %._crit_edge, label %.lr.ph.preheader18

.lr.ph.preheader18:                               ; preds = %middle.block, %.lr.ph.preheader
  %indvars.iv.ph = phi i64 [ 0, %.lr.ph.preheader ], [ %n.vec, %middle.block ]
  %xtraiter = and i64 %wide.trip.count, 3
  %lcmp.mod.not = icmp eq i64 %xtraiter, 0
  br i1 %lcmp.mod.not, label %.lr.ph.prol.loopexit, label %.lr.ph.prol

.lr.ph.prol:                                      ; preds = %.lr.ph.preheader18, %.lr.ph.prol
  %indvars.iv.prol = phi i64 [ %indvars.iv.next.prol, %.lr.ph.prol ], [ %indvars.iv.ph, %.lr.ph.preheader18 ]
  %prol.iter = phi i64 [ %prol.iter.next, %.lr.ph.prol ], [ 0, %.lr.ph.preheader18 ]
  %20 = getelementptr inbounds i16, ptr %4, i64 %indvars.iv.prol
  %21 = load i16, ptr %20, align 2, !tbaa !12
  %22 = getelementptr inbounds i16, ptr %9, i64 %indvars.iv.prol
  store i16 %21, ptr %22, align 2, !tbaa !12
  %indvars.iv.next.prol = add nuw nsw i64 %indvars.iv.prol, 1
  %prol.iter.next = add i64 %prol.iter, 1
  %prol.iter.cmp.not = icmp eq i64 %prol.iter.next, %xtraiter
  br i1 %prol.iter.cmp.not, label %.lr.ph.prol.loopexit, label %.lr.ph.prol, !llvm.loop !18

.lr.ph.prol.loopexit:                             ; preds = %.lr.ph.prol, %.lr.ph.preheader18
  %indvars.iv.unr = phi i64 [ %indvars.iv.ph, %.lr.ph.preheader18 ], [ %indvars.iv.next.prol, %.lr.ph.prol ]
  %23 = sub nsw i64 %indvars.iv.ph, %wide.trip.count
  %24 = icmp ugt i64 %23, -4
  br i1 %24, label %._crit_edge, label %.lr.ph

.lr.ph:                                           ; preds = %.lr.ph.prol.loopexit, %.lr.ph
  %indvars.iv = phi i64 [ %indvars.iv.next.3, %.lr.ph ], [ %indvars.iv.unr, %.lr.ph.prol.loopexit ]
  %25 = getelementptr inbounds i16, ptr %4, i64 %indvars.iv
  %26 = load i16, ptr %25, align 2, !tbaa !12
  %27 = getelementptr inbounds i16, ptr %9, i64 %indvars.iv
  store i16 %26, ptr %27, align 2, !tbaa !12
  %indvars.iv.next = add nuw nsw i64 %indvars.iv, 1
  %28 = getelementptr inbounds i16, ptr %4, i64 %indvars.iv.next
  %29 = load i16, ptr %28, align 2, !tbaa !12
  %30 = getelementptr inbounds i16, ptr %9, i64 %indvars.iv.next
  store i16 %29, ptr %30, align 2, !tbaa !12
  %indvars.iv.next.1 = add nuw nsw i64 %indvars.iv, 2
  %31 = getelementptr inbounds i16, ptr %4, i64 %indvars.iv.next.1
  %32 = load i16, ptr %31, align 2, !tbaa !12
  %33 = getelementptr inbounds i16, ptr %9, i64 %indvars.iv.next.1
  store i16 %32, ptr %33, align 2, !tbaa !12
  %indvars.iv.next.2 = add nuw nsw i64 %indvars.iv, 3
  %34 = getelementptr inbounds i16, ptr %4, i64 %indvars.iv.next.2
  %35 = load i16, ptr %34, align 2, !tbaa !12
  %36 = getelementptr inbounds i16, ptr %9, i64 %indvars.iv.next.2
  store i16 %35, ptr %36, align 2, !tbaa !12
  %indvars.iv.next.3 = add nuw nsw i64 %indvars.iv, 4
  %exitcond.not.3 = icmp eq i64 %indvars.iv.next.3, %wide.trip.count
  br i1 %exitcond.not.3, label %._crit_edge, label %.lr.ph, !llvm.loop !20

._crit_edge:                                      ; preds = %.lr.ph.prol.loopexit, %.lr.ph, %middle.block, %6
  ret void
}

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" }

!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, !7, i64 0}
!6 = !{!"MappingMatrix", !7, i64 0, !7, i64 4, !7, i64 8}
!7 = !{!"int", !8, i64 0}
!8 = !{!"omnipotent char", !9, i64 0}
!9 = !{!"Simple C/C++ TBAA"}
!10 = !{!6, !7, i64 4}
!11 = !{!6, !7, i64 8}
!12 = !{!13, !13, i64 0}
!13 = !{!"short", !8, i64 0}
!14 = distinct !{!14, !15, !16, !17}
!15 = !{!"llvm.loop.mustprogress"}
!16 = !{!"llvm.loop.isvectorized", i32 1}
!17 = !{!"llvm.loop.unroll.runtime.disable"}
!18 = distinct !{!18, !19}
!19 = !{!"llvm.loop.unroll.disable"}
!20 = distinct !{!20, !15, !16}


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