; LLVM IR from jgaeddert/liquid-dsp :: src/matrix/src (smatrixb)

; 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.smatrixb_s = type { i32, i32, ptr, ptr, ptr, ptr, ptr, ptr, 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
define dso_local i32 @smatrixb_reset_max_mlist(ptr noundef %0) #1 {
  %2 = alloca ptr, align 8
  %3 = alloca i32, align 4
  store ptr %0, ptr %2, align 8, !tbaa !5
  call void @llvm.lifetime.start.p0(i64 4, ptr %3) #2
  %4 = load ptr, ptr %2, align 8, !tbaa !5
  %5 = getelementptr inbounds %struct.smatrixb_s, ptr %4, i32 0, i32 8
  store i32 0, ptr %5, align 8, !tbaa !9
  store i32 0, ptr %3, align 4, !tbaa !12
  br label %6

6:                                                ; preds = %35, %1
  %7 = load i32, ptr %3, align 4, !tbaa !12
  %8 = load ptr, ptr %2, align 8, !tbaa !5
  %9 = getelementptr inbounds %struct.smatrixb_s, ptr %8, i32 0, i32 0
  %10 = load i32, ptr %9, align 8, !tbaa !13
  %11 = icmp ult i32 %7, %10
  br i1 %11, label %12, label %38

12:                                               ; preds = %6
  %13 = load ptr, ptr %2, align 8, !tbaa !5
  %14 = getelementptr inbounds %struct.smatrixb_s, ptr %13, i32 0, i32 6
  %15 = load ptr, ptr %14, align 8, !tbaa !14
  %16 = load i32, ptr %3, align 4, !tbaa !12
  %17 = zext i32 %16 to i64
  %18 = getelementptr inbounds i32, ptr %15, i64 %17
  %19 = load i32, ptr %18, align 4, !tbaa !12
  %20 = load ptr, ptr %2, align 8, !tbaa !5
  %21 = getelementptr inbounds %struct.smatrixb_s, ptr %20, i32 0, i32 8
  %22 = load i32, ptr %21, align 8, !tbaa !9
  %23 = icmp ugt i32 %19, %22
  br i1 %23, label %24, label %34

24:                                               ; preds = %12
  %25 = load ptr, ptr %2, align 8, !tbaa !5
  %26 = getelementptr inbounds %struct.smatrixb_s, ptr %25, i32 0, i32 6
  %27 = load ptr, ptr %26, align 8, !tbaa !14
  %28 = load i32, ptr %3, align 4, !tbaa !12
  %29 = zext i32 %28 to i64
  %30 = getelementptr inbounds i32, ptr %27, i64 %29
  %31 = load i32, ptr %30, align 4, !tbaa !12
  %32 = load ptr, ptr %2, align 8, !tbaa !5
  %33 = getelementptr inbounds %struct.smatrixb_s, ptr %32, i32 0, i32 8
  store i32 %31, ptr %33, align 8, !tbaa !9
  br label %34

34:                                               ; preds = %24, %12
  br label %35

35:                                               ; preds = %34
  %36 = load i32, ptr %3, align 4, !tbaa !12
  %37 = add i32 %36, 1
  store i32 %37, ptr %3, align 4, !tbaa !12
  br label %6, !llvm.loop !15

38:                                               ; preds = %6
  call void @llvm.lifetime.end.p0(i64 4, ptr %3) #2
  ret i32 0
}

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, !11, i64 56}
!10 = !{!"smatrixb_s", !11, i64 0, !11, i64 4, !6, i64 8, !6, i64 16, !6, i64 24, !6, i64 32, !6, i64 40, !6, i64 48, !11, i64 56, !11, i64 60}
!11 = !{!"int", !7, i64 0}
!12 = !{!11, !11, i64 0}
!13 = !{!10, !11, i64 0}
!14 = !{!10, !6, i64 40}
!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: nofree norecurse nosync nounwind memory(read, argmem: readwrite, inaccessiblemem: none) uwtable
define dso_local noundef i32 @smatrixb_reset_max_mlist(ptr nocapture noundef %0) local_unnamed_addr #0 {
  %2 = getelementptr inbounds i8, ptr %0, i64 56
  store i32 0, ptr %2, align 8, !tbaa !5
  %3 = load i32, ptr %0, align 8, !tbaa !11
  %.not = icmp eq i32 %3, 0
  br i1 %.not, label %._crit_edge, label %.lr.ph

.lr.ph:                                           ; preds = %1
  %4 = getelementptr inbounds i8, ptr %0, i64 40
  %5 = load ptr, ptr %4, align 8, !tbaa !12
  %wide.trip.count = zext i32 %3 to i64
  %xtraiter = and i64 %wide.trip.count, 3
  %6 = icmp ult i32 %3, 4
  br i1 %6, label %._crit_edge.loopexit.unr-lcssa, label %.lr.ph.new

.lr.ph.new:                                       ; preds = %.lr.ph
  %unroll_iter = and i64 %wide.trip.count, 4294967292
  br label %7

7:                                                ; preds = %31, %.lr.ph.new
  %indvars.iv = phi i64 [ 0, %.lr.ph.new ], [ %indvars.iv.next.3, %31 ]
  %8 = phi i32 [ 0, %.lr.ph.new ], [ %32, %31 ]
  %niter = phi i64 [ 0, %.lr.ph.new ], [ %niter.next.3, %31 ]
  %9 = getelementptr inbounds i32, ptr %5, i64 %indvars.iv
  %10 = load i32, ptr %9, align 4, !tbaa !13
  %11 = icmp ugt i32 %10, %8
  br i1 %11, label %12, label %13

12:                                               ; preds = %7
  store i32 %10, ptr %2, align 8, !tbaa !5
  br label %13

13:                                               ; preds = %7, %12
  %14 = phi i32 [ %8, %7 ], [ %10, %12 ]
  %indvars.iv.next = or disjoint i64 %indvars.iv, 1
  %15 = getelementptr inbounds i32, ptr %5, i64 %indvars.iv.next
  %16 = load i32, ptr %15, align 4, !tbaa !13
  %17 = icmp ugt i32 %16, %14
  br i1 %17, label %18, label %19

18:                                               ; preds = %13
  store i32 %16, ptr %2, align 8, !tbaa !5
  br label %19

19:                                               ; preds = %18, %13
  %20 = phi i32 [ %14, %13 ], [ %16, %18 ]
  %indvars.iv.next.1 = or disjoint i64 %indvars.iv, 2
  %21 = getelementptr inbounds i32, ptr %5, i64 %indvars.iv.next.1
  %22 = load i32, ptr %21, align 4, !tbaa !13
  %23 = icmp ugt i32 %22, %20
  br i1 %23, label %24, label %25

24:                                               ; preds = %19
  store i32 %22, ptr %2, align 8, !tbaa !5
  br label %25

25:                                               ; preds = %24, %19
  %26 = phi i32 [ %20, %19 ], [ %22, %24 ]
  %indvars.iv.next.2 = or disjoint i64 %indvars.iv, 3
  %27 = getelementptr inbounds i32, ptr %5, i64 %indvars.iv.next.2
  %28 = load i32, ptr %27, align 4, !tbaa !13
  %29 = icmp ugt i32 %28, %26
  br i1 %29, label %30, label %31

30:                                               ; preds = %25
  store i32 %28, ptr %2, align 8, !tbaa !5
  br label %31

31:                                               ; preds = %30, %25
  %32 = phi i32 [ %26, %25 ], [ %28, %30 ]
  %indvars.iv.next.3 = add nuw nsw i64 %indvars.iv, 4
  %niter.next.3 = add i64 %niter, 4
  %niter.ncmp.3 = icmp eq i64 %niter.next.3, %unroll_iter
  br i1 %niter.ncmp.3, label %._crit_edge.loopexit.unr-lcssa, label %7, !llvm.loop !14

._crit_edge.loopexit.unr-lcssa:                   ; preds = %31, %.lr.ph
  %indvars.iv.unr = phi i64 [ 0, %.lr.ph ], [ %indvars.iv.next.3, %31 ]
  %.unr = phi i32 [ 0, %.lr.ph ], [ %32, %31 ]
  %lcmp.mod.not = icmp eq i64 %xtraiter, 0
  br i1 %lcmp.mod.not, label %._crit_edge, label %.epil.preheader

.epil.preheader:                                  ; preds = %._crit_edge.loopexit.unr-lcssa, %38
  %indvars.iv.epil = phi i64 [ %indvars.iv.next.epil, %38 ], [ %indvars.iv.unr, %._crit_edge.loopexit.unr-lcssa ]
  %33 = phi i32 [ %39, %38 ], [ %.unr, %._crit_edge.loopexit.unr-lcssa ]
  %epil.iter = phi i64 [ %epil.iter.next, %38 ], [ 0, %._crit_edge.loopexit.unr-lcssa ]
  %34 = getelementptr inbounds i32, ptr %5, i64 %indvars.iv.epil
  %35 = load i32, ptr %34, align 4, !tbaa !13
  %36 = icmp ugt i32 %35, %33
  br i1 %36, label %37, label %38

37:                                               ; preds = %.epil.preheader
  store i32 %35, ptr %2, align 8, !tbaa !5
  br label %38

38:                                               ; preds = %37, %.epil.preheader
  %39 = phi i32 [ %33, %.epil.preheader ], [ %35, %37 ]
  %indvars.iv.next.epil = add nuw nsw i64 %indvars.iv.epil, 1
  %epil.iter.next = add i64 %epil.iter, 1
  %epil.iter.cmp.not = icmp eq i64 %epil.iter.next, %xtraiter
  br i1 %epil.iter.cmp.not, label %._crit_edge, label %.epil.preheader, !llvm.loop !16

._crit_edge:                                      ; preds = %._crit_edge.loopexit.unr-lcssa, %38, %1
  ret i32 0
}

attributes #0 = { nofree norecurse nosync nounwind memory(read, argmem: 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, !7, i64 56}
!6 = !{!"smatrixb_s", !7, i64 0, !7, i64 4, !10, i64 8, !10, i64 16, !10, i64 24, !10, i64 32, !10, i64 40, !10, i64 48, !7, i64 56, !7, i64 60}
!7 = !{!"int", !8, i64 0}
!8 = !{!"omnipotent char", !9, i64 0}
!9 = !{!"Simple C/C++ TBAA"}
!10 = !{!"any pointer", !8, i64 0}
!11 = !{!6, !7, i64 0}
!12 = !{!6, !10, i64 40}
!13 = !{!7, !7, i64 0}
!14 = distinct !{!14, !15}
!15 = !{!"llvm.loop.mustprogress"}
!16 = distinct !{!16, !17}
!17 = !{!"llvm.loop.unroll.disable"}


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