; LLVM IR from libxsmm/libxsmm :: src (generator_packed_spgemm_bcsc_bsparse_avx_avx2_avx512_amx)

; 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: nounwind uwtable
define dso_local void @libxsmm_generator_packed_spgemm_bcsc_prefetch_B_block_in_L1(ptr noundef %0, i32 noundef %1, i32 noundef %2, i64 noundef %3) #1 {
  %5 = alloca ptr, align 8
  %6 = alloca i32, align 4
  %7 = alloca i32, align 4
  %8 = alloca i64, align 8
  %9 = alloca i32, align 4
  %10 = alloca i32, align 4
  store ptr %0, ptr %5, align 8, !tbaa !5
  store i32 %1, ptr %6, align 4, !tbaa !9
  store i32 %2, ptr %7, align 4, !tbaa !9
  store i64 %3, ptr %8, align 8, !tbaa !11
  call void @llvm.lifetime.start.p0(i64 4, ptr %9) #3
  %11 = load i32, ptr %6, align 4, !tbaa !9
  %12 = add i32 %11, 63
  %13 = udiv i32 %12, 64
  store i32 %13, ptr %9, align 4, !tbaa !9
  call void @llvm.lifetime.start.p0(i64 4, ptr %10) #3
  store i32 0, ptr %10, align 4, !tbaa !9
  br label %14

14:                                               ; preds = %26, %4
  %15 = load i32, ptr %10, align 4, !tbaa !9
  %16 = load i32, ptr %9, align 4, !tbaa !9
  %17 = icmp ult i32 %15, %16
  br i1 %17, label %18, label %29

18:                                               ; preds = %14
  %19 = load ptr, ptr %5, align 8, !tbaa !5
  %20 = load i32, ptr %7, align 4, !tbaa !9
  %21 = load i64, ptr %8, align 8, !tbaa !11
  %22 = trunc i64 %21 to i32
  %23 = load i32, ptr %10, align 4, !tbaa !9
  %24 = mul i32 %23, 64
  %25 = add i32 %22, %24
  call void @libxsmm_x86_instruction_prefetch(ptr noundef %19, i32 noundef -1810624488, i32 noundef %20, i32 noundef 127, i32 noundef 0, i32 noundef %25)
  br label %26

26:                                               ; preds = %18
  %27 = load i32, ptr %10, align 4, !tbaa !9
  %28 = add i32 %27, 1
  store i32 %28, ptr %10, align 4, !tbaa !9
  br label %14, !llvm.loop !13

29:                                               ; preds = %14
  call void @llvm.lifetime.end.p0(i64 4, ptr %10) #3
  call void @llvm.lifetime.end.p0(i64 4, ptr %9) #3
  ret void
}

declare void @libxsmm_x86_instruction_prefetch(ptr noundef, i32 noundef, i32 noundef, i32 noundef, i32 noundef, i32 noundef) #2

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 = { "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/C++ TBAA"}
!9 = !{!10, !10, i64 0}
!10 = !{!"int", !7, i64 0}
!11 = !{!12, !12, i64 0}
!12 = !{!"long long", !7, i64 0}
!13 = distinct !{!13, !14}
!14 = !{!"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
define dso_local void @libxsmm_generator_packed_spgemm_bcsc_prefetch_B_block_in_L1(ptr noundef %0, i32 noundef %1, i32 noundef %2, i64 noundef %3) local_unnamed_addr #0 {
  %5 = add i32 %1, 63
  %6 = lshr i32 %5, 6
  %.not = icmp ult i32 %5, 64
  br i1 %.not, label %._crit_edge, label %.lr.ph

.lr.ph:                                           ; preds = %4
  %7 = trunc i64 %3 to i32
  br label %8

8:                                                ; preds = %.lr.ph, %8
  %.07 = phi i32 [ 0, %.lr.ph ], [ %11, %8 ]
  %9 = shl nuw i32 %.07, 6
  %10 = add i32 %9, %7
  tail call void @libxsmm_x86_instruction_prefetch(ptr noundef %0, i32 noundef -1810624488, i32 noundef %2, i32 noundef 127, i32 noundef 0, i32 noundef %10) #2
  %11 = add nuw nsw i32 %.07, 1
  %exitcond.not = icmp eq i32 %11, %6
  br i1 %exitcond.not, label %._crit_edge, label %8, !llvm.loop !5

._crit_edge:                                      ; preds = %8, %4
  ret void
}

declare void @libxsmm_x86_instruction_prefetch(ptr noundef, i32 noundef, i32 noundef, i32 noundef, i32 noundef, i32 noundef) local_unnamed_addr #1

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" }
attributes #1 = { "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 = distinct !{!5, !6}
!6 = !{!"llvm.loop.mustprogress"}


; Effective O3 passes: GlobalOptPass,IPSCCPPass,IndVarSimplifyPass,InferFunctionAttrsPass,InstCombinePass,JumpThreadingPass,LICMPass,LoopRotatePass,LoopSimplifyPass,LoopUnrollPass,ReassociatePass,SROAPass,SimplifyCFGPass,TailCallElimPass