; LLVM IR from kkumatani/distant_speech_recognition :: btk20_src/common/mach_ind_io.ll (Z11read_floatsP8_IO_FILEPfi)

; 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"

%union.unionT = type { float }

@_ZL7machine = external hidden global i32, align 4
@.str.3 = external hidden unnamed_addr constant [32 x i8], align 1
@_ZTI9jio_error = external dso_local constant { ptr, ptr, ptr }, align 8

; 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

declare i64 @fread(ptr noundef, i64 noundef, i64 noundef, ptr noundef) #1

declare ptr @__cxa_allocate_exception(i64)

; Function Attrs: mustprogress uwtable
declare dso_local void @_ZN9jio_errorC2EPKcz(ptr noundef nonnull align 8 dereferenceable(44), ptr noundef, ...) unnamed_addr #2 align 2

declare i32 @__gxx_personality_v0(...)

declare void @__cxa_free_exception(ptr)

; Function Attrs: nounwind
declare void @_ZN7j_errorD2Ev(ptr noundef nonnull align 8 dereferenceable(44)) unnamed_addr #3

declare void @__cxa_throw(ptr, ptr, ptr)

; Function Attrs: mustprogress uwtable
define dso_local noundef i32 @_Z11read_floatsP8_IO_FILEPfi(ptr noundef %0, ptr noundef %1, i32 noundef %2) #2 personality ptr @__gxx_personality_v0 {
  %4 = alloca ptr, align 8
  %5 = alloca ptr, align 8
  %6 = alloca i32, align 4
  %7 = alloca %union.unionT, align 4
  %8 = alloca %union.unionT, align 4
  %9 = alloca ptr, align 8
  %10 = alloca i32, align 4
  %11 = alloca i32, align 4
  %12 = alloca ptr, align 8
  %13 = alloca i32, align 4
  store ptr %0, ptr %4, align 8, !tbaa !5
  store ptr %1, ptr %5, align 8, !tbaa !5
  store i32 %2, ptr %6, align 4, !tbaa !9
  call void @llvm.lifetime.start.p0(i64 4, ptr %7) #4
  call void @llvm.lifetime.start.p0(i64 4, ptr %8) #4
  call void @llvm.lifetime.start.p0(i64 8, ptr %9) #4
  %14 = load ptr, ptr %5, align 8, !tbaa !5
  store ptr %14, ptr %9, align 8, !tbaa !5
  call void @llvm.lifetime.start.p0(i64 4, ptr %10) #4
  call void @llvm.lifetime.start.p0(i64 4, ptr %11) #4
  %15 = load ptr, ptr %5, align 8, !tbaa !5
  %16 = load i32, ptr %6, align 4, !tbaa !9
  %17 = sext i32 %16 to i64
  %18 = load ptr, ptr %4, align 8, !tbaa !5
  %19 = call i64 @fread(ptr noundef %15, i64 noundef 4, i64 noundef %17, ptr noundef %18)
  %20 = trunc i64 %19 to i32
  store i32 %20, ptr %11, align 4, !tbaa !9
  store i32 0, ptr %10, align 4, !tbaa !9
  br label %21

21:                                               ; preds = %69, %3
  %22 = load i32, ptr %10, align 4, !tbaa !9
  %23 = load i32, ptr %11, align 4, !tbaa !9
  %24 = icmp slt i32 %22, %23
  br i1 %24, label %25, label %72

25:                                               ; preds = %21
  %26 = load ptr, ptr %9, align 8, !tbaa !5
  %27 = load float, ptr %26, align 4, !tbaa !11
  store float %27, ptr %8, align 4, !tbaa !13
  %28 = load i32, ptr @_ZL7machine, align 4, !tbaa !9
  switch i32 %28, label %56 [
    i32 1, label %29
    i32 2, label %31
    i32 3, label %47
  ]

29:                                               ; preds = %25
  %30 = load float, ptr %8, align 4, !tbaa !13
  store float %30, ptr %7, align 4, !tbaa !13
  br label %64

31:                                               ; preds = %25
  %32 = load i32, ptr %8, align 4, !tbaa !13
  %33 = shl i32 %32, 24
  %34 = and i32 %33, -16777216
  %35 = load i32, ptr %8, align 4, !tbaa !13
  %36 = shl i32 %35, 8
  %37 = and i32 %36, 16711680
  %38 = or i32 %34, %37
  %39 = load i32, ptr %8, align 4, !tbaa !13
  %40 = ashr i32 %39, 8
  %41 = and i32 %40, 65280
  %42 = or i32 %38, %41
  %43 = load i32, ptr %8, align 4, !tbaa !13
  %44 = ashr i32 %43, 24
  %45 = and i32 %44, 255
  %46 = or i32 %42, %45
  store i32 %46, ptr %7, align 4, !tbaa !13
  br label %64

47:                                               ; preds = %25
  %48 = load i32, ptr %8, align 4, !tbaa !13
  %49 = shl i32 %48, 8
  %50 = add nsw i32 %49, 256
  %51 = and i32 %50, -16711936
  %52 = load i32, ptr %8, align 4, !tbaa !13
  %53 = ashr i32 %52, 8
  %54 = and i32 %53, 16711935
  %55 = or i32 %51, %54
  store i32 %55, ptr %7, align 4, !tbaa !13
  br label %64

56:                                               ; preds = %25
  %57 = call ptr @__cxa_allocate_exception(i64 48) #4
  %58 = load i32, ptr @_ZL7machine, align 4, !tbaa !9
  invoke void (ptr, ptr, ...) @_ZN9jio_errorC2EPKcz(ptr noundef nonnull align 8 dereferenceable(44) %57, ptr noundef @.str.3, i32 noundef %58)
          to label %59 unwind label %60

59:                                               ; preds = %56
  call void @__cxa_throw(ptr %57, ptr @_ZTI9jio_error, ptr @_ZN7j_errorD2Ev) #5
  unreachable

60:                                               ; preds = %56
  %61 = landingpad { ptr, i32 }
          cleanup
  %62 = extractvalue { ptr, i32 } %61, 0
  store ptr %62, ptr %12, align 8
  %63 = extractvalue { ptr, i32 } %61, 1
  store i32 %63, ptr %13, align 4
  call void @__cxa_free_exception(ptr %57) #4
  call void @llvm.lifetime.end.p0(i64 4, ptr %11) #4
  call void @llvm.lifetime.end.p0(i64 4, ptr %10) #4
  call void @llvm.lifetime.end.p0(i64 8, ptr %9) #4
  call void @llvm.lifetime.end.p0(i64 4, ptr %8) #4
  call void @llvm.lifetime.end.p0(i64 4, ptr %7) #4
  br label %74

64:                                               ; preds = %47, %31, %29
  %65 = load float, ptr %7, align 4, !tbaa !13
  %66 = load ptr, ptr %9, align 8, !tbaa !5
  store float %65, ptr %66, align 4, !tbaa !11
  %67 = load ptr, ptr %9, align 8, !tbaa !5
  %68 = getelementptr inbounds float, ptr %67, i32 1
  store ptr %68, ptr %9, align 8, !tbaa !5
  br label %69

69:                                               ; preds = %64
  %70 = load i32, ptr %10, align 4, !tbaa !9
  %71 = add nsw i32 %70, 1
  store i32 %71, ptr %10, align 4, !tbaa !9
  br label %21, !llvm.loop !14

72:                                               ; preds = %21
  %73 = load i32, ptr %11, align 4, !tbaa !9
  call void @llvm.lifetime.end.p0(i64 4, ptr %11) #4
  call void @llvm.lifetime.end.p0(i64 4, ptr %10) #4
  call void @llvm.lifetime.end.p0(i64 8, ptr %9) #4
  call void @llvm.lifetime.end.p0(i64 4, ptr %8) #4
  call void @llvm.lifetime.end.p0(i64 4, ptr %7) #4
  ret i32 %73

74:                                               ; preds = %60
  %75 = load ptr, ptr %12, align 8
  %76 = load i32, ptr %13, align 4
  %77 = insertvalue { ptr, i32 } poison, ptr %75, 0
  %78 = insertvalue { ptr, i32 } %77, i32 %76, 1
  resume { ptr, i32 } %78
}

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 = { 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 = { 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 #4 = { nounwind }
attributes #5 = { noreturn }

!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 = !{!"int", !7, i64 0}
!11 = !{!12, !12, i64 0}
!12 = !{!"float", !7, i64 0}
!13 = !{!7, !7, i64 0}
!14 = distinct !{!14, !15}
!15 = !{!"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"

@_ZL7machine = external hidden local_unnamed_addr global i32, align 4
@.str.3 = external hidden unnamed_addr constant [32 x i8], align 1
@_ZTI9jio_error = external dso_local constant { ptr, ptr, ptr }, align 8

; Function Attrs: nofree nounwind
declare noundef i64 @fread(ptr nocapture noundef, i64 noundef, i64 noundef, ptr nocapture noundef) local_unnamed_addr #0

declare ptr @__cxa_allocate_exception(i64) local_unnamed_addr

; Function Attrs: mustprogress uwtable
declare dso_local void @_ZN9jio_errorC2EPKcz(ptr noundef nonnull align 8 dereferenceable(44), ptr noundef, ...) unnamed_addr #1 align 2

declare i32 @__gxx_personality_v0(...)

declare void @__cxa_free_exception(ptr) local_unnamed_addr

; Function Attrs: nounwind
declare void @_ZN7j_errorD2Ev(ptr noundef nonnull align 8 dereferenceable(44)) unnamed_addr #2

declare void @__cxa_throw(ptr, ptr, ptr) local_unnamed_addr

; Function Attrs: mustprogress uwtable
define dso_local noundef i32 @_Z11read_floatsP8_IO_FILEPfi(ptr nocapture noundef %0, ptr nocapture noundef %1, i32 noundef %2) local_unnamed_addr #1 personality ptr @__gxx_personality_v0 {
  %4 = sext i32 %2 to i64
  %5 = tail call i64 @fread(ptr noundef %1, i64 noundef 4, i64 noundef %4, ptr noundef %0)
  %6 = trunc i64 %5 to i32
  %7 = icmp sgt i32 %6, 0
  br i1 %7, label %.lr.ph, label %._crit_edge

.lr.ph:                                           ; preds = %3
  %8 = load i32, ptr @_ZL7machine, align 4, !tbaa !5
  %.off = add i32 %8, -1
  %switch = icmp ult i32 %.off, 3
  br i1 %switch, label %.lr.ph.split, label %44

.lr.ph.split:                                     ; preds = %.lr.ph
  switch i32 %8, label %.lr.ph.split.split.preheader [
    i32 1, label %._crit_edge
    i32 2, label %.lr.ph.split.split.us22.preheader
  ]

.lr.ph.split.split.us22.preheader:                ; preds = %.lr.ph.split
  %9 = and i64 %5, 2147483647
  %min.iters.check = icmp ult i64 %9, 8
  br i1 %min.iters.check, label %.lr.ph.split.split.us22.preheader55, label %vector.ph

.lr.ph.split.split.us22.preheader55:              ; preds = %middle.block, %.lr.ph.split.split.us22.preheader
  %.021.us23.ph = phi ptr [ %1, %.lr.ph.split.split.us22.preheader ], [ %ind.end, %middle.block ]
  %.01820.us24.ph = phi i32 [ 0, %.lr.ph.split.split.us22.preheader ], [ %ind.end31, %middle.block ]
  br label %.lr.ph.split.split.us22

vector.ph:                                        ; preds = %.lr.ph.split.split.us22.preheader
  %n.mod.vf = and i64 %5, 7
  %n.vec = sub nsw i64 %9, %n.mod.vf
  %10 = shl nsw i64 %n.vec, 2
  %ind.end = getelementptr i8, ptr %1, i64 %10
  %ind.end31 = trunc i64 %n.vec to i32
  br label %vector.body

vector.body:                                      ; preds = %vector.body, %vector.ph
  %index = phi i64 [ 0, %vector.ph ], [ %index.next, %vector.body ]
  %offset.idx = shl i64 %index, 2
  %next.gep = getelementptr i8, ptr %1, i64 %offset.idx
  %11 = getelementptr i8, ptr %next.gep, i64 16
  %wide.load = load <4 x i32>, ptr %next.gep, align 4, !tbaa !9
  %wide.load34 = load <4 x i32>, ptr %11, align 4, !tbaa !9
  %12 = tail call <4 x i32> @llvm.bswap.v4i32(<4 x i32> %wide.load)
  %13 = tail call <4 x i32> @llvm.bswap.v4i32(<4 x i32> %wide.load34)
  store <4 x i32> %12, ptr %next.gep, align 4, !tbaa !9
  store <4 x i32> %13, ptr %11, align 4, !tbaa !9
  %index.next = add nuw i64 %index, 8
  %14 = icmp eq i64 %index.next, %n.vec
  br i1 %14, label %middle.block, label %vector.body, !llvm.loop !11

middle.block:                                     ; preds = %vector.body
  %cmp.n = icmp eq i64 %n.mod.vf, 0
  br i1 %cmp.n, label %._crit_edge, label %.lr.ph.split.split.us22.preheader55

.lr.ph.split.split.preheader:                     ; preds = %.lr.ph.split
  %15 = and i64 %5, 2147483647
  %min.iters.check37 = icmp ult i64 %15, 8
  br i1 %min.iters.check37, label %.lr.ph.split.split.preheader54, label %vector.ph38

.lr.ph.split.split.preheader54:                   ; preds = %middle.block35, %.lr.ph.split.split.preheader
  %.021.ph = phi ptr [ %1, %.lr.ph.split.split.preheader ], [ %ind.end41, %middle.block35 ]
  %.01820.ph = phi i32 [ 0, %.lr.ph.split.split.preheader ], [ %ind.end43, %middle.block35 ]
  br label %.lr.ph.split.split

vector.ph38:                                      ; preds = %.lr.ph.split.split.preheader
  %n.mod.vf39 = and i64 %5, 7
  %n.vec40 = sub nsw i64 %15, %n.mod.vf39
  %16 = shl nsw i64 %n.vec40, 2
  %ind.end41 = getelementptr i8, ptr %1, i64 %16
  %ind.end43 = trunc i64 %n.vec40 to i32
  br label %vector.body45

vector.body45:                                    ; preds = %vector.body45, %vector.ph38
  %index46 = phi i64 [ 0, %vector.ph38 ], [ %index.next52, %vector.body45 ]
  %offset.idx47 = shl i64 %index46, 2
  %next.gep48 = getelementptr i8, ptr %1, i64 %offset.idx47
  %17 = getelementptr i8, ptr %next.gep48, i64 16
  %wide.load50 = load <4 x i32>, ptr %next.gep48, align 4, !tbaa !9
  %wide.load51 = load <4 x i32>, ptr %17, align 4, !tbaa !9
  %18 = shl <4 x i32> %wide.load50, <i32 8, i32 8, i32 8, i32 8>
  %19 = shl <4 x i32> %wide.load51, <i32 8, i32 8, i32 8, i32 8>
  %20 = add nsw <4 x i32> %18, <i32 256, i32 256, i32 256, i32 256>
  %21 = add nsw <4 x i32> %19, <i32 256, i32 256, i32 256, i32 256>
  %22 = and <4 x i32> %20, <i32 -16711936, i32 -16711936, i32 -16711936, i32 -16711936>
  %23 = and <4 x i32> %21, <i32 -16711936, i32 -16711936, i32 -16711936, i32 -16711936>
  %24 = lshr <4 x i32> %wide.load50, <i32 8, i32 8, i32 8, i32 8>
  %25 = lshr <4 x i32> %wide.load51, <i32 8, i32 8, i32 8, i32 8>
  %26 = and <4 x i32> %24, <i32 16711935, i32 16711935, i32 16711935, i32 16711935>
  %27 = and <4 x i32> %25, <i32 16711935, i32 16711935, i32 16711935, i32 16711935>
  %28 = or disjoint <4 x i32> %22, %26
  %29 = or disjoint <4 x i32> %23, %27
  store <4 x i32> %28, ptr %next.gep48, align 4, !tbaa !9
  store <4 x i32> %29, ptr %17, align 4, !tbaa !9
  %index.next52 = add nuw i64 %index46, 8
  %30 = icmp eq i64 %index.next52, %n.vec40
  br i1 %30, label %middle.block35, label %vector.body45, !llvm.loop !15

middle.block35:                                   ; preds = %vector.body45
  %cmp.n53 = icmp eq i64 %n.mod.vf39, 0
  br i1 %cmp.n53, label %._crit_edge, label %.lr.ph.split.split.preheader54

.lr.ph.split.split.us22:                          ; preds = %.lr.ph.split.split.us22.preheader55, %.lr.ph.split.split.us22
  %.021.us23 = phi ptr [ %33, %.lr.ph.split.split.us22 ], [ %.021.us23.ph, %.lr.ph.split.split.us22.preheader55 ]
  %.01820.us24 = phi i32 [ %34, %.lr.ph.split.split.us22 ], [ %.01820.us24.ph, %.lr.ph.split.split.us22.preheader55 ]
  %31 = load i32, ptr %.021.us23, align 4, !tbaa !9
  %32 = tail call i32 @llvm.bswap.i32(i32 %31)
  store i32 %32, ptr %.021.us23, align 4, !tbaa !9
  %33 = getelementptr inbounds i8, ptr %.021.us23, i64 4
  %34 = add nuw nsw i32 %.01820.us24, 1
  %exitcond.not = icmp eq i32 %34, %6
  br i1 %exitcond.not, label %._crit_edge, label %.lr.ph.split.split.us22, !llvm.loop !16

.lr.ph.split.split:                               ; preds = %.lr.ph.split.split.preheader54, %.lr.ph.split.split
  %.021 = phi ptr [ %42, %.lr.ph.split.split ], [ %.021.ph, %.lr.ph.split.split.preheader54 ]
  %.01820 = phi i32 [ %43, %.lr.ph.split.split ], [ %.01820.ph, %.lr.ph.split.split.preheader54 ]
  %35 = load i32, ptr %.021, align 4, !tbaa !9
  %36 = shl i32 %35, 8
  %37 = add nsw i32 %36, 256
  %38 = and i32 %37, -16711936
  %39 = lshr i32 %35, 8
  %40 = and i32 %39, 16711935
  %41 = or disjoint i32 %38, %40
  store i32 %41, ptr %.021, align 4, !tbaa !9
  %42 = getelementptr inbounds i8, ptr %.021, i64 4
  %43 = add nuw nsw i32 %.01820, 1
  %exitcond28.not = icmp eq i32 %43, %6
  br i1 %exitcond28.not, label %._crit_edge, label %.lr.ph.split.split, !llvm.loop !17

44:                                               ; preds = %.lr.ph
  %45 = tail call ptr @__cxa_allocate_exception(i64 48) #4
  %46 = load i32, ptr @_ZL7machine, align 4, !tbaa !5
  invoke void (ptr, ptr, ...) @_ZN9jio_errorC2EPKcz(ptr noundef nonnull align 8 dereferenceable(44) %45, ptr noundef nonnull @.str.3, i32 noundef %46)
          to label %47 unwind label %48

47:                                               ; preds = %44
  tail call void @__cxa_throw(ptr nonnull %45, ptr nonnull @_ZTI9jio_error, ptr nonnull @_ZN7j_errorD2Ev) #5
  unreachable

48:                                               ; preds = %44
  %49 = landingpad { ptr, i32 }
          cleanup
  tail call void @__cxa_free_exception(ptr %45) #4
  resume { ptr, i32 } %49

._crit_edge:                                      ; preds = %.lr.ph.split.split.us22, %.lr.ph.split.split, %middle.block, %middle.block35, %.lr.ph.split, %3
  ret i32 %6
}

; Function Attrs: nocallback nofree nosync nounwind speculatable willreturn memory(none)
declare i32 @llvm.bswap.i32(i32) #3

; Function Attrs: nocallback nofree nosync nounwind speculatable willreturn memory(none)
declare <4 x i32> @llvm.bswap.v4i32(<4 x i32>) #3

attributes #0 = { nofree 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 #1 = { 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 #2 = { 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 #3 = { nocallback nofree nosync nounwind speculatable willreturn memory(none) }
attributes #4 = { nounwind }
attributes #5 = { noreturn }

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


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