; LLVM IR from MakeContributions/DSA :: algorithms/CPlusPlus/Arrays (index-of-smallest-element-of-array)

; 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"

%"class.std::basic_ostream" = type { ptr, %"class.std::basic_ios" }
%"class.std::basic_ios" = type { %"class.std::ios_base", ptr, i8, i8, ptr, ptr, ptr, ptr }
%"class.std::ios_base" = type { ptr, i64, i64, i32, i32, i32, ptr, %"struct.std::ios_base::_Words", [8 x %"struct.std::ios_base::_Words"], i32, ptr, %"class.std::locale" }
%"struct.std::ios_base::_Words" = type { ptr, i64 }
%"class.std::locale" = type { ptr }
%"class.std::basic_istream" = type { ptr, i64, %"class.std::basic_ios" }

@_ZSt4cout = external global %"class.std::basic_ostream", align 8
@.str = external hidden unnamed_addr constant [24 x i8], align 1
@_ZSt3cin = external global %"class.std::basic_istream", align 8
@.str.1 = external hidden unnamed_addr constant [38 x i8], align 1

; Function Attrs: mustprogress norecurse uwtable
define dso_local noundef i32 @main() #0 {
  %1 = alloca i32, align 4
  %2 = alloca i32, align 4
  %3 = alloca i32, align 4
  %4 = alloca ptr, align 8
  %5 = alloca i64, align 8
  %6 = alloca i32, align 4
  %7 = alloca i32, align 4
  %8 = alloca i32, align 4
  store i32 0, ptr %1, align 4
  call void @llvm.lifetime.start.p0(i64 4, ptr %2) #5
  call void @llvm.lifetime.start.p0(i64 4, ptr %3) #5
  %9 = call noundef nonnull align 8 dereferenceable(8) ptr @_ZStlsISt11char_traitsIcEERSt13basic_ostreamIcT_ES5_PKc(ptr noundef nonnull align 8 dereferenceable(8) @_ZSt4cout, ptr noundef @.str)
  %10 = call noundef nonnull align 8 dereferenceable(16) ptr @_ZNSirsERi(ptr noundef nonnull align 8 dereferenceable(16) @_ZSt3cin, ptr noundef nonnull align 4 dereferenceable(4) %2)
  %11 = load i32, ptr %2, align 4, !tbaa !5
  %12 = zext i32 %11 to i64
  %13 = call ptr @llvm.stacksave.p0()
  store ptr %13, ptr %4, align 8
  %14 = alloca i32, i64 %12, align 16
  store i64 %12, ptr %5, align 8
  call void @llvm.lifetime.start.p0(i64 4, ptr %6) #5
  store i32 0, ptr %6, align 4, !tbaa !5
  br label %15

15:                                               ; preds = %25, %0
  %16 = load i32, ptr %6, align 4, !tbaa !5
  %17 = load i32, ptr %2, align 4, !tbaa !5
  %18 = icmp slt i32 %16, %17
  br i1 %18, label %20, label %19

19:                                               ; preds = %15
  call void @llvm.lifetime.end.p0(i64 4, ptr %6) #5
  br label %28

20:                                               ; preds = %15
  %21 = load i32, ptr %6, align 4, !tbaa !5
  %22 = sext i32 %21 to i64
  %23 = getelementptr inbounds i32, ptr %14, i64 %22
  %24 = call noundef nonnull align 8 dereferenceable(16) ptr @_ZNSirsERi(ptr noundef nonnull align 8 dereferenceable(16) @_ZSt3cin, ptr noundef nonnull align 4 dereferenceable(4) %23)
  br label %25

25:                                               ; preds = %20
  %26 = load i32, ptr %6, align 4, !tbaa !5
  %27 = add nsw i32 %26, 1
  store i32 %27, ptr %6, align 4, !tbaa !5
  br label %15, !llvm.loop !9

28:                                               ; preds = %19
  call void @llvm.lifetime.start.p0(i64 4, ptr %7) #5
  %29 = getelementptr inbounds i32, ptr %14, i64 0
  %30 = load i32, ptr %29, align 16, !tbaa !5
  store i32 %30, ptr %7, align 4, !tbaa !5
  call void @llvm.lifetime.start.p0(i64 4, ptr %8) #5
  store i32 0, ptr %8, align 4, !tbaa !5
  store i32 0, ptr %3, align 4, !tbaa !5
  br label %31

31:                                               ; preds = %49, %28
  %32 = load i32, ptr %3, align 4, !tbaa !5
  %33 = load i32, ptr %2, align 4, !tbaa !5
  %34 = icmp slt i32 %32, %33
  br i1 %34, label %35, label %52

35:                                               ; preds = %31
  %36 = load i32, ptr %7, align 4, !tbaa !5
  %37 = load i32, ptr %3, align 4, !tbaa !5
  %38 = sext i32 %37 to i64
  %39 = getelementptr inbounds i32, ptr %14, i64 %38
  %40 = load i32, ptr %39, align 4, !tbaa !5
  %41 = icmp sgt i32 %36, %40
  br i1 %41, label %42, label %48

42:                                               ; preds = %35
  %43 = load i32, ptr %3, align 4, !tbaa !5
  %44 = sext i32 %43 to i64
  %45 = getelementptr inbounds i32, ptr %14, i64 %44
  %46 = load i32, ptr %45, align 4, !tbaa !5
  store i32 %46, ptr %7, align 4, !tbaa !5
  %47 = load i32, ptr %3, align 4, !tbaa !5
  store i32 %47, ptr %8, align 4, !tbaa !5
  br label %48

48:                                               ; preds = %42, %35
  br label %49

49:                                               ; preds = %48
  %50 = load i32, ptr %3, align 4, !tbaa !5
  %51 = add nsw i32 %50, 1
  store i32 %51, ptr %3, align 4, !tbaa !5
  br label %31, !llvm.loop !11

52:                                               ; preds = %31
  %53 = call noundef nonnull align 8 dereferenceable(8) ptr @_ZStlsISt11char_traitsIcEERSt13basic_ostreamIcT_ES5_PKc(ptr noundef nonnull align 8 dereferenceable(8) @_ZSt4cout, ptr noundef @.str.1)
  %54 = load i32, ptr %8, align 4, !tbaa !5
  %55 = call noundef nonnull align 8 dereferenceable(8) ptr @_ZNSolsEi(ptr noundef nonnull align 8 dereferenceable(8) %53, i32 noundef %54)
  call void @llvm.lifetime.end.p0(i64 4, ptr %8) #5
  call void @llvm.lifetime.end.p0(i64 4, ptr %7) #5
  %56 = load ptr, ptr %4, align 8
  call void @llvm.stackrestore.p0(ptr %56)
  call void @llvm.lifetime.end.p0(i64 4, ptr %3) #5
  call void @llvm.lifetime.end.p0(i64 4, ptr %2) #5
  %57 = load i32, ptr %1, align 4
  ret i32 %57
}

; Function Attrs: nocallback nofree nosync nounwind willreturn memory(argmem: readwrite)
declare void @llvm.lifetime.start.p0(i64 immarg, ptr nocapture) #1

; Function Attrs: inlinehint mustprogress uwtable
declare noundef nonnull align 8 dereferenceable(8) ptr @_ZStlsISt11char_traitsIcEERSt13basic_ostreamIcT_ES5_PKc(ptr noundef nonnull align 8 dereferenceable(8), ptr noundef) #2

declare noundef nonnull align 8 dereferenceable(16) ptr @_ZNSirsERi(ptr noundef nonnull align 8 dereferenceable(16), ptr noundef nonnull align 4 dereferenceable(4)) #3

; Function Attrs: nocallback nofree nosync nounwind willreturn
declare ptr @llvm.stacksave.p0() #4

; Function Attrs: nocallback nofree nosync nounwind willreturn memory(argmem: readwrite)
declare void @llvm.lifetime.end.p0(i64 immarg, ptr nocapture) #1

declare noundef nonnull align 8 dereferenceable(8) ptr @_ZNSolsEi(ptr noundef nonnull align 8 dereferenceable(8), i32 noundef) #3

; Function Attrs: nocallback nofree nosync nounwind willreturn
declare void @llvm.stackrestore.p0(ptr) #4

attributes #0 = { mustprogress norecurse 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 = { nocallback nofree nosync nounwind willreturn memory(argmem: readwrite) }
attributes #2 = { inlinehint 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 = { "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 = { nocallback nofree nosync nounwind willreturn }
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 = !{!"int", !7, i64 0}
!7 = !{!"omnipotent char", !8, i64 0}
!8 = !{!"Simple C++ TBAA"}
!9 = distinct !{!9, !10}
!10 = !{!"llvm.loop.mustprogress"}
!11 = distinct !{!11, !10}


; 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"

%"class.std::basic_ostream" = type { ptr, %"class.std::basic_ios" }
%"class.std::basic_ios" = type { %"class.std::ios_base", ptr, i8, i8, ptr, ptr, ptr, ptr }
%"class.std::ios_base" = type { ptr, i64, i64, i32, i32, i32, ptr, %"struct.std::ios_base::_Words", [8 x %"struct.std::ios_base::_Words"], i32, ptr, %"class.std::locale" }
%"struct.std::ios_base::_Words" = type { ptr, i64 }
%"class.std::locale" = type { ptr }
%"class.std::basic_istream" = type { ptr, i64, %"class.std::basic_ios" }

@_ZSt4cout = external global %"class.std::basic_ostream", align 8
@.str = external hidden unnamed_addr constant [24 x i8], align 1
@_ZSt3cin = external global %"class.std::basic_istream", align 8
@.str.1 = external hidden unnamed_addr constant [38 x i8], align 1

; Function Attrs: mustprogress norecurse uwtable
define dso_local noundef i32 @main() local_unnamed_addr #0 {
  %1 = alloca i32, align 4
  call void @llvm.lifetime.start.p0(i64 4, ptr nonnull %1) #6
  %2 = tail call noundef nonnull align 8 dereferenceable(8) ptr @_ZStlsISt11char_traitsIcEERSt13basic_ostreamIcT_ES5_PKc(ptr noundef nonnull align 8 dereferenceable(8) @_ZSt4cout, ptr noundef nonnull @.str)
  %3 = call noundef nonnull align 8 dereferenceable(16) ptr @_ZNSirsERi(ptr noundef nonnull align 8 dereferenceable(16) @_ZSt3cin, ptr noundef nonnull align 4 dereferenceable(4) %1)
  %4 = load i32, ptr %1, align 4, !tbaa !5
  %5 = zext i32 %4 to i64
  %6 = call ptr @llvm.stacksave.p0()
  %7 = alloca i32, i64 %5, align 16
  %8 = load i32, ptr %1, align 4, !tbaa !5
  %9 = icmp sgt i32 %8, 0
  br i1 %9, label %.lr.ph, label %._crit_edge23

._crit_edge:                                      ; preds = %.lr.ph
  %10 = icmp sgt i32 %14, 0
  br i1 %10, label %.lr.ph22.preheader, label %._crit_edge23

.lr.ph22.preheader:                               ; preds = %._crit_edge
  %.pre = load i32, ptr %7, align 16, !tbaa !5
  %wide.trip.count = zext nneg i32 %14 to i64
  %xtraiter = and i64 %wide.trip.count, 3
  %11 = icmp ult i32 %14, 4
  br i1 %11, label %._crit_edge23.loopexit.unr-lcssa, label %.lr.ph22.preheader.new

.lr.ph22.preheader.new:                           ; preds = %.lr.ph22.preheader
  %unroll_iter = and i64 %wide.trip.count, 2147483644
  br label %.lr.ph22

.lr.ph:                                           ; preds = %0, %.lr.ph
  %indvars.iv = phi i64 [ %indvars.iv.next, %.lr.ph ], [ 0, %0 ]
  %12 = getelementptr inbounds i32, ptr %7, i64 %indvars.iv
  %13 = call noundef nonnull align 8 dereferenceable(16) ptr @_ZNSirsERi(ptr noundef nonnull align 8 dereferenceable(16) @_ZSt3cin, ptr noundef nonnull align 4 dereferenceable(4) %12)
  %indvars.iv.next = add nuw nsw i64 %indvars.iv, 1
  %14 = load i32, ptr %1, align 4, !tbaa !5
  %15 = sext i32 %14 to i64
  %16 = icmp slt i64 %indvars.iv.next, %15
  br i1 %16, label %.lr.ph, label %._crit_edge, !llvm.loop !9

.lr.ph22:                                         ; preds = %.lr.ph22, %.lr.ph22.preheader.new
  %indvars.iv27 = phi i64 [ 0, %.lr.ph22.preheader.new ], [ %indvars.iv.next28.3, %.lr.ph22 ]
  %.020 = phi i32 [ 0, %.lr.ph22.preheader.new ], [ %spec.select16.3, %.lr.ph22 ]
  %.01119 = phi i32 [ %.pre, %.lr.ph22.preheader.new ], [ %spec.select.3, %.lr.ph22 ]
  %niter = phi i64 [ 0, %.lr.ph22.preheader.new ], [ %niter.next.3, %.lr.ph22 ]
  %17 = getelementptr inbounds i32, ptr %7, i64 %indvars.iv27
  %18 = load i32, ptr %17, align 16, !tbaa !5
  %19 = icmp sgt i32 %.01119, %18
  %spec.select = call i32 @llvm.smin.i32(i32 %.01119, i32 %18)
  %20 = trunc nuw nsw i64 %indvars.iv27 to i32
  %spec.select16 = select i1 %19, i32 %20, i32 %.020
  %indvars.iv.next28 = or disjoint i64 %indvars.iv27, 1
  %21 = getelementptr inbounds i32, ptr %7, i64 %indvars.iv.next28
  %22 = load i32, ptr %21, align 4, !tbaa !5
  %23 = icmp sgt i32 %spec.select, %22
  %spec.select.1 = call i32 @llvm.smin.i32(i32 %spec.select, i32 %22)
  %24 = trunc nuw nsw i64 %indvars.iv.next28 to i32
  %spec.select16.1 = select i1 %23, i32 %24, i32 %spec.select16
  %indvars.iv.next28.1 = or disjoint i64 %indvars.iv27, 2
  %25 = getelementptr inbounds i32, ptr %7, i64 %indvars.iv.next28.1
  %26 = load i32, ptr %25, align 8, !tbaa !5
  %27 = icmp sgt i32 %spec.select.1, %26
  %spec.select.2 = call i32 @llvm.smin.i32(i32 %spec.select.1, i32 %26)
  %28 = trunc nuw nsw i64 %indvars.iv.next28.1 to i32
  %spec.select16.2 = select i1 %27, i32 %28, i32 %spec.select16.1
  %indvars.iv.next28.2 = or disjoint i64 %indvars.iv27, 3
  %29 = getelementptr inbounds i32, ptr %7, i64 %indvars.iv.next28.2
  %30 = load i32, ptr %29, align 4, !tbaa !5
  %31 = icmp sgt i32 %spec.select.2, %30
  %spec.select.3 = call i32 @llvm.smin.i32(i32 %spec.select.2, i32 %30)
  %32 = trunc nuw nsw i64 %indvars.iv.next28.2 to i32
  %spec.select16.3 = select i1 %31, i32 %32, i32 %spec.select16.2
  %indvars.iv.next28.3 = add nuw nsw i64 %indvars.iv27, 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_edge23.loopexit.unr-lcssa, label %.lr.ph22, !llvm.loop !11

._crit_edge23.loopexit.unr-lcssa:                 ; preds = %.lr.ph22, %.lr.ph22.preheader
  %spec.select16.lcssa.ph = phi i32 [ poison, %.lr.ph22.preheader ], [ %spec.select16.3, %.lr.ph22 ]
  %indvars.iv27.unr = phi i64 [ 0, %.lr.ph22.preheader ], [ %indvars.iv.next28.3, %.lr.ph22 ]
  %.020.unr = phi i32 [ 0, %.lr.ph22.preheader ], [ %spec.select16.3, %.lr.ph22 ]
  %.01119.unr = phi i32 [ %.pre, %.lr.ph22.preheader ], [ %spec.select.3, %.lr.ph22 ]
  %lcmp.mod.not = icmp eq i64 %xtraiter, 0
  br i1 %lcmp.mod.not, label %._crit_edge23, label %.lr.ph22.epil

.lr.ph22.epil:                                    ; preds = %._crit_edge23.loopexit.unr-lcssa, %.lr.ph22.epil
  %indvars.iv27.epil = phi i64 [ %indvars.iv.next28.epil, %.lr.ph22.epil ], [ %indvars.iv27.unr, %._crit_edge23.loopexit.unr-lcssa ]
  %.020.epil = phi i32 [ %spec.select16.epil, %.lr.ph22.epil ], [ %.020.unr, %._crit_edge23.loopexit.unr-lcssa ]
  %.01119.epil = phi i32 [ %spec.select.epil, %.lr.ph22.epil ], [ %.01119.unr, %._crit_edge23.loopexit.unr-lcssa ]
  %epil.iter = phi i64 [ %epil.iter.next, %.lr.ph22.epil ], [ 0, %._crit_edge23.loopexit.unr-lcssa ]
  %33 = getelementptr inbounds i32, ptr %7, i64 %indvars.iv27.epil
  %34 = load i32, ptr %33, align 4, !tbaa !5
  %35 = icmp sgt i32 %.01119.epil, %34
  %spec.select.epil = call i32 @llvm.smin.i32(i32 %.01119.epil, i32 %34)
  %36 = trunc nuw nsw i64 %indvars.iv27.epil to i32
  %spec.select16.epil = select i1 %35, i32 %36, i32 %.020.epil
  %indvars.iv.next28.epil = add nuw nsw i64 %indvars.iv27.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_edge23, label %.lr.ph22.epil, !llvm.loop !12

._crit_edge23:                                    ; preds = %._crit_edge23.loopexit.unr-lcssa, %.lr.ph22.epil, %0, %._crit_edge
  %.0.lcssa = phi i32 [ 0, %._crit_edge ], [ 0, %0 ], [ %spec.select16.lcssa.ph, %._crit_edge23.loopexit.unr-lcssa ], [ %spec.select16.epil, %.lr.ph22.epil ]
  %37 = call noundef nonnull align 8 dereferenceable(8) ptr @_ZStlsISt11char_traitsIcEERSt13basic_ostreamIcT_ES5_PKc(ptr noundef nonnull align 8 dereferenceable(8) @_ZSt4cout, ptr noundef nonnull @.str.1)
  %38 = call noundef nonnull align 8 dereferenceable(8) ptr @_ZNSolsEi(ptr noundef nonnull align 8 dereferenceable(8) %37, i32 noundef %.0.lcssa)
  call void @llvm.stackrestore.p0(ptr %6)
  call void @llvm.lifetime.end.p0(i64 4, ptr nonnull %1) #6
  ret i32 0
}

; Function Attrs: mustprogress nocallback nofree nosync nounwind willreturn memory(argmem: readwrite)
declare void @llvm.lifetime.start.p0(i64 immarg, ptr nocapture) #1

; Function Attrs: inlinehint mustprogress uwtable
declare noundef nonnull align 8 dereferenceable(8) ptr @_ZStlsISt11char_traitsIcEERSt13basic_ostreamIcT_ES5_PKc(ptr noundef nonnull align 8 dereferenceable(8), ptr noundef) local_unnamed_addr #2

declare noundef nonnull align 8 dereferenceable(16) ptr @_ZNSirsERi(ptr noundef nonnull align 8 dereferenceable(16), ptr noundef nonnull align 4 dereferenceable(4)) local_unnamed_addr #3

; Function Attrs: mustprogress nocallback nofree nosync nounwind willreturn
declare ptr @llvm.stacksave.p0() #4

; Function Attrs: mustprogress nocallback nofree nosync nounwind willreturn memory(argmem: readwrite)
declare void @llvm.lifetime.end.p0(i64 immarg, ptr nocapture) #1

declare noundef nonnull align 8 dereferenceable(8) ptr @_ZNSolsEi(ptr noundef nonnull align 8 dereferenceable(8), i32 noundef) local_unnamed_addr #3

; Function Attrs: mustprogress nocallback nofree nosync nounwind willreturn
declare void @llvm.stackrestore.p0(ptr) #4

; Function Attrs: nocallback nofree nosync nounwind speculatable willreturn memory(none)
declare i32 @llvm.smin.i32(i32, i32) #5

attributes #0 = { mustprogress norecurse 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 = { mustprogress nocallback nofree nosync nounwind willreturn memory(argmem: readwrite) }
attributes #2 = { inlinehint 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 = { "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 = { mustprogress nocallback nofree nosync nounwind willreturn }
attributes #5 = { nocallback nofree nosync nounwind speculatable willreturn memory(none) }
attributes #6 = { 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 = !{!"int", !7, i64 0}
!7 = !{!"omnipotent char", !8, i64 0}
!8 = !{!"Simple C++ TBAA"}
!9 = distinct !{!9, !10}
!10 = !{!"llvm.loop.mustprogress"}
!11 = distinct !{!11, !10}
!12 = distinct !{!12, !13}
!13 = !{!"llvm.loop.unroll.disable"}


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