; LLVM IR from apache/mxnet :: example/extensions/lib_subgraph/subgraph_lib.ll (Z5myExpPN5mxnet3ext8MXTensorES2_)

; 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: inlinehint mustprogress nounwind uwtable
declare dso_local noundef ptr @_ZN5mxnet3ext8MXTensor4dataIfEEPT_v(ptr noundef nonnull align 8 dereferenceable(140)) #1 align 2

declare noundef i64 @_ZNK5mxnet3ext8MXTensor4sizeEv(ptr noundef nonnull align 8 dereferenceable(140)) #2

; Function Attrs: nocallback nofree nosync nounwind willreturn memory(argmem: readwrite)
declare void @llvm.lifetime.end.p0(i64 immarg, ptr nocapture) #0

; Function Attrs: mustprogress uwtable
define dso_local void @_Z5myExpPN5mxnet3ext8MXTensorES2_(ptr noundef %0, ptr noundef %1) #3 {
  %3 = alloca ptr, align 8
  %4 = alloca ptr, align 8
  %5 = alloca ptr, align 8
  %6 = alloca ptr, align 8
  %7 = alloca i64, align 8
  store ptr %0, ptr %3, align 8, !tbaa !5
  store ptr %1, ptr %4, align 8, !tbaa !5
  call void @llvm.lifetime.start.p0(i64 8, ptr %5) #5
  %8 = load ptr, ptr %3, align 8, !tbaa !5
  %9 = call noundef ptr @_ZN5mxnet3ext8MXTensor4dataIfEEPT_v(ptr noundef nonnull align 8 dereferenceable(140) %8)
  store ptr %9, ptr %5, align 8, !tbaa !5
  call void @llvm.lifetime.start.p0(i64 8, ptr %6) #5
  %10 = load ptr, ptr %4, align 8, !tbaa !5
  %11 = call noundef ptr @_ZN5mxnet3ext8MXTensor4dataIfEEPT_v(ptr noundef nonnull align 8 dereferenceable(140) %10)
  store ptr %11, ptr %6, align 8, !tbaa !5
  call void @llvm.lifetime.start.p0(i64 8, ptr %7) #5
  store i64 0, ptr %7, align 8, !tbaa !9
  br label %12

12:                                               ; preds = %27, %2
  %13 = load i64, ptr %7, align 8, !tbaa !9
  %14 = load ptr, ptr %3, align 8, !tbaa !5
  %15 = call noundef i64 @_ZNK5mxnet3ext8MXTensor4sizeEv(ptr noundef nonnull align 8 dereferenceable(140) %14)
  %16 = icmp slt i64 %13, %15
  br i1 %16, label %18, label %17

17:                                               ; preds = %12
  call void @llvm.lifetime.end.p0(i64 8, ptr %7) #5
  br label %30

18:                                               ; preds = %12
  %19 = load ptr, ptr %5, align 8, !tbaa !5
  %20 = load i64, ptr %7, align 8, !tbaa !9
  %21 = getelementptr inbounds float, ptr %19, i64 %20
  %22 = load float, ptr %21, align 4, !tbaa !11
  %23 = call float @expf(float noundef %22) #5, !tbaa !13
  %24 = load ptr, ptr %6, align 8, !tbaa !5
  %25 = load i64, ptr %7, align 8, !tbaa !9
  %26 = getelementptr inbounds float, ptr %24, i64 %25
  store float %23, ptr %26, align 4, !tbaa !11
  br label %27

27:                                               ; preds = %18
  %28 = load i64, ptr %7, align 8, !tbaa !9
  %29 = add nsw i64 %28, 1
  store i64 %29, ptr %7, align 8, !tbaa !9
  br label %12, !llvm.loop !15

30:                                               ; preds = %17
  call void @llvm.lifetime.end.p0(i64 8, ptr %6) #5
  call void @llvm.lifetime.end.p0(i64 8, ptr %5) #5
  ret void
}

; Function Attrs: nounwind
declare float @expf(float noundef) #4

attributes #0 = { nocallback nofree nosync nounwind willreturn memory(argmem: readwrite) }
attributes #1 = { 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 #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 = { 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 #4 = { nounwind "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 #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 = !{!"long", !7, i64 0}
!11 = !{!12, !12, i64 0}
!12 = !{!"float", !7, i64 0}
!13 = !{!14, !14, i64 0}
!14 = !{!"int", !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: inlinehint mustprogress nounwind uwtable
declare dso_local noundef ptr @_ZN5mxnet3ext8MXTensor4dataIfEEPT_v(ptr noundef nonnull align 8 dereferenceable(140)) local_unnamed_addr #0 align 2

declare noundef i64 @_ZNK5mxnet3ext8MXTensor4sizeEv(ptr noundef nonnull align 8 dereferenceable(140)) local_unnamed_addr #1

; Function Attrs: mustprogress uwtable
define dso_local void @_Z5myExpPN5mxnet3ext8MXTensorES2_(ptr noundef nonnull %0, ptr noundef %1) local_unnamed_addr #2 {
  %3 = tail call noundef ptr @_ZN5mxnet3ext8MXTensor4dataIfEEPT_v(ptr noundef nonnull align 8 dereferenceable(140) %0)
  %4 = tail call noundef ptr @_ZN5mxnet3ext8MXTensor4dataIfEEPT_v(ptr noundef nonnull align 8 dereferenceable(140) %1)
  %5 = tail call noundef i64 @_ZNK5mxnet3ext8MXTensor4sizeEv(ptr noundef nonnull align 8 dereferenceable(140) %0)
  %6 = icmp sgt i64 %5, 0
  br i1 %6, label %.lr.ph, label %._crit_edge

._crit_edge:                                      ; preds = %.lr.ph, %2
  ret void

.lr.ph:                                           ; preds = %2, %.lr.ph
  %.08 = phi i64 [ %11, %.lr.ph ], [ 0, %2 ]
  %7 = getelementptr inbounds float, ptr %3, i64 %.08
  %8 = load float, ptr %7, align 4, !tbaa !5
  %9 = tail call float @expf(float noundef %8) #4, !tbaa !9
  %10 = getelementptr inbounds float, ptr %4, i64 %.08
  store float %9, ptr %10, align 4, !tbaa !5
  %11 = add nuw nsw i64 %.08, 1
  %12 = tail call noundef i64 @_ZNK5mxnet3ext8MXTensor4sizeEv(ptr noundef nonnull align 8 dereferenceable(140) %0)
  %13 = icmp slt i64 %11, %12
  br i1 %13, label %.lr.ph, label %._crit_edge, !llvm.loop !11
}

; Function Attrs: mustprogress nofree nounwind willreturn memory(write)
declare float @expf(float noundef) local_unnamed_addr #3

attributes #0 = { 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 #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 = { 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 = { mustprogress nofree nounwind willreturn memory(write) "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 = { 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 = !{!"float", !7, i64 0}
!7 = !{!"omnipotent char", !8, i64 0}
!8 = !{!"Simple C++ TBAA"}
!9 = !{!10, !10, i64 0}
!10 = !{!"int", !7, i64 0}
!11 = distinct !{!11, !12}
!12 = !{!"llvm.loop.mustprogress"}


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