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

; 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

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

; 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_gemm_amx_prefetch_tile_in_L1(ptr noundef %0, ptr noundef %1, i32 noundef %2, i32 noundef %3, i32 noundef %4, i64 noundef %5) #2 {
  %7 = alloca ptr, align 8
  %8 = alloca ptr, align 8
  %9 = alloca i32, align 4
  %10 = alloca i32, align 4
  %11 = alloca i32, align 4
  %12 = alloca i64, align 8
  %13 = alloca i32, align 4
  store ptr %0, ptr %7, align 8, !tbaa !5
  store ptr %1, ptr %8, align 8, !tbaa !5
  store i32 %2, ptr %9, align 4, !tbaa !9
  store i32 %3, ptr %10, align 4, !tbaa !9
  store i32 %4, ptr %11, align 4, !tbaa !9
  store i64 %5, ptr %12, align 8, !tbaa !11
  call void @llvm.lifetime.start.p0(i64 4, ptr %13) #3
  %14 = load ptr, ptr %8, align 8, !tbaa !5
  store i32 0, ptr %13, align 4, !tbaa !9
  br label %15

15:                                               ; preds = %29, %6
  %16 = load i32, ptr %13, align 4, !tbaa !9
  %17 = load i32, ptr %9, align 4, !tbaa !9
  %18 = icmp ult i32 %16, %17
  br i1 %18, label %19, label %32

19:                                               ; preds = %15
  %20 = load ptr, ptr %7, align 8, !tbaa !5
  %21 = load i32, ptr %11, align 4, !tbaa !9
  %22 = load i64, ptr %12, align 8, !tbaa !11
  %23 = trunc i64 %22 to i32
  %24 = load i32, ptr %13, align 4, !tbaa !9
  %25 = load i32, ptr %10, align 4, !tbaa !9
  %26 = mul i32 %24, %25
  %27 = mul i32 %26, 2
  %28 = add i32 %23, %27
  call void @libxsmm_x86_instruction_prefetch(ptr noundef %20, i32 noundef -1810624488, i32 noundef %21, i32 noundef 127, i32 noundef 0, i32 noundef %28)
  br label %29

29:                                               ; preds = %19
  %30 = load i32, ptr %13, align 4, !tbaa !9
  %31 = add i32 %30, 1
  store i32 %31, ptr %13, align 4, !tbaa !9
  br label %15, !llvm.loop !13

32:                                               ; preds = %15
  call void @llvm.lifetime.end.p0(i64 4, ptr %13) #3
  ret void
}

attributes #0 = { nocallback nofree nosync nounwind willreturn memory(argmem: readwrite) }
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 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 = { 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"

declare void @libxsmm_x86_instruction_prefetch(ptr noundef, i32 noundef, i32 noundef, i32 noundef, i32 noundef, i32 noundef) local_unnamed_addr #0

; Function Attrs: nounwind uwtable
define dso_local void @libxsmm_generator_gemm_amx_prefetch_tile_in_L1(ptr noundef %0, ptr nocapture noundef readnone %1, i32 noundef %2, i32 noundef %3, i32 noundef %4, i64 noundef %5) local_unnamed_addr #1 {
  %.not = icmp eq i32 %2, 0
  br i1 %.not, label %._crit_edge, label %.lr.ph

.lr.ph:                                           ; preds = %6
  %7 = trunc i64 %5 to i32
  %8 = shl i32 %3, 1
  br label %9

9:                                                ; preds = %.lr.ph, %9
  %.08 = phi i32 [ 0, %.lr.ph ], [ %12, %9 ]
  %10 = mul i32 %8, %.08
  %11 = add i32 %10, %7
  tail call void @libxsmm_x86_instruction_prefetch(ptr noundef %0, i32 noundef -1810624488, i32 noundef %4, i32 noundef 127, i32 noundef 0, i32 noundef %11) #2
  %12 = add nuw i32 %.08, 1
  %exitcond.not = icmp eq i32 %12, %2
  br i1 %exitcond.not, label %._crit_edge, label %9, !llvm.loop !5

._crit_edge:                                      ; preds = %9, %6
  ret void
}

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


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