; LLVM IR from o0o0o0o0o0o0o/image-processing-from-scratch :: ImageMatting/Eigen/blas (complex_double)

; 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::complex" = type { { double, double } }

@_ZZ5zhpr_E4func = external hidden constant [2 x ptr], align 16
@.str.8 = external hidden unnamed_addr constant [7 x i8], align 1

; 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: mustprogress nounwind uwtable
declare dso_local void @_ZNSt7complexIdEC2Edd(ptr noundef nonnull align 8 dereferenceable(16), double noundef, double noundef) unnamed_addr #1 align 2

declare i32 @xerbla_(ptr noundef, ptr noundef, i32 noundef) #2

; Function Attrs: mustprogress uwtable
declare dso_local noundef ptr @_Z18get_compact_vectorISt7complexIdEEPT_S3_ii(ptr noundef, i32 noundef, i32 noundef) #3

; Function Attrs: nobuiltin nounwind
declare void @_ZdaPv(ptr noundef) #4

; Function Attrs: mustprogress uwtable
define dso_local i32 @zhpr_(ptr noundef %0, ptr noundef %1, ptr noundef %2, ptr noundef %3, ptr noundef %4, ptr noundef %5) #3 {
  %7 = alloca i32, align 4
  %8 = alloca ptr, align 8
  %9 = alloca ptr, align 8
  %10 = alloca ptr, align 8
  %11 = alloca ptr, align 8
  %12 = alloca ptr, align 8
  %13 = alloca ptr, align 8
  %14 = alloca ptr, align 8
  %15 = alloca ptr, align 8
  %16 = alloca double, align 8
  %17 = alloca i32, align 4
  %18 = alloca i32, align 4
  %19 = alloca %"class.std::complex", align 8
  %20 = alloca ptr, align 8
  %21 = alloca i32, align 4
  store ptr %0, ptr %8, align 8, !tbaa !5
  store ptr %1, ptr %9, align 8, !tbaa !5
  store ptr %2, ptr %10, align 8, !tbaa !5
  store ptr %3, ptr %11, align 8, !tbaa !5
  store ptr %4, ptr %12, align 8, !tbaa !5
  store ptr %5, ptr %13, align 8, !tbaa !5
  call void @llvm.lifetime.start.p0(i64 8, ptr %14) #6
  %22 = load ptr, ptr %11, align 8, !tbaa !5
  store ptr %22, ptr %14, align 8, !tbaa !5
  call void @llvm.lifetime.start.p0(i64 8, ptr %15) #6
  %23 = load ptr, ptr %13, align 8, !tbaa !5
  store ptr %23, ptr %15, align 8, !tbaa !5
  call void @llvm.lifetime.start.p0(i64 8, ptr %16) #6
  %24 = load ptr, ptr %10, align 8, !tbaa !5
  %25 = load double, ptr %24, align 8, !tbaa !9
  store double %25, ptr %16, align 8, !tbaa !9
  call void @llvm.lifetime.start.p0(i64 4, ptr %17) #6
  store i32 0, ptr %17, align 4, !tbaa !11
  %26 = load ptr, ptr %8, align 8, !tbaa !5
  %27 = load i8, ptr %26, align 1, !tbaa !13
  %28 = sext i8 %27 to i32
  %29 = icmp eq i32 %28, 85
  br i1 %29, label %35, label %30

30:                                               ; preds = %6
  %31 = load ptr, ptr %8, align 8, !tbaa !5
  %32 = load i8, ptr %31, align 1, !tbaa !13
  %33 = sext i8 %32 to i32
  %34 = icmp eq i32 %33, 117
  br i1 %34, label %35, label %36

35:                                               ; preds = %30, %6
  br label %50

36:                                               ; preds = %30
  %37 = load ptr, ptr %8, align 8, !tbaa !5
  %38 = load i8, ptr %37, align 1, !tbaa !13
  %39 = sext i8 %38 to i32
  %40 = icmp eq i32 %39, 76
  br i1 %40, label %46, label %41

41:                                               ; preds = %36
  %42 = load ptr, ptr %8, align 8, !tbaa !5
  %43 = load i8, ptr %42, align 1, !tbaa !13
  %44 = sext i8 %43 to i32
  %45 = icmp eq i32 %44, 108
  br label %46

46:                                               ; preds = %41, %36
  %47 = phi i1 [ true, %36 ], [ %45, %41 ]
  %48 = zext i1 %47 to i64
  %49 = select i1 %47, i32 1, i32 255
  br label %50

50:                                               ; preds = %46, %35
  %51 = phi i32 [ 0, %35 ], [ %49, %46 ]
  %52 = icmp eq i32 %51, 255
  br i1 %52, label %53, label %54

53:                                               ; preds = %50
  store i32 1, ptr %17, align 4, !tbaa !11
  br label %66

54:                                               ; preds = %50
  %55 = load ptr, ptr %9, align 8, !tbaa !5
  %56 = load i32, ptr %55, align 4, !tbaa !11
  %57 = icmp slt i32 %56, 0
  br i1 %57, label %58, label %59

58:                                               ; preds = %54
  store i32 2, ptr %17, align 4, !tbaa !11
  br label %65

59:                                               ; preds = %54
  %60 = load ptr, ptr %12, align 8, !tbaa !5
  %61 = load i32, ptr %60, align 4, !tbaa !11
  %62 = icmp eq i32 %61, 0
  br i1 %62, label %63, label %64

63:                                               ; preds = %59
  store i32 5, ptr %17, align 4, !tbaa !11
  br label %64

64:                                               ; preds = %63, %59
  br label %65

65:                                               ; preds = %64, %58
  br label %66

66:                                               ; preds = %65, %53
  %67 = load i32, ptr %17, align 4, !tbaa !11
  %68 = icmp ne i32 %67, 0
  br i1 %68, label %69, label %71

69:                                               ; preds = %66
  %70 = call i32 @xerbla_(ptr noundef @.str.8, ptr noundef %17, i32 noundef 6)
  store i32 %70, ptr %7, align 4
  store i32 1, ptr %18, align 4
  br label %136

71:                                               ; preds = %66
  call void @llvm.lifetime.start.p0(i64 16, ptr %19) #6
  call void @_ZNSt7complexIdEC2Edd(ptr noundef nonnull align 8 dereferenceable(16) %19, double noundef 0.000000e+00, double noundef 0.000000e+00)
  %72 = call noundef zeroext i1 @_ZSteqIdEbRKT_RKSt7complexIS0_E(ptr noundef nonnull align 8 dereferenceable(8) %16, ptr noundef nonnull align 8 dereferenceable(16) %19)
  call void @llvm.lifetime.end.p0(i64 16, ptr %19) #6
  br i1 %72, label %73, label %74

73:                                               ; preds = %71
  store i32 1, ptr %7, align 4
  store i32 1, ptr %18, align 4
  br label %136

74:                                               ; preds = %71
  call void @llvm.lifetime.start.p0(i64 8, ptr %20) #6
  %75 = load ptr, ptr %14, align 8, !tbaa !5
  %76 = load ptr, ptr %9, align 8, !tbaa !5
  %77 = load i32, ptr %76, align 4, !tbaa !11
  %78 = load ptr, ptr %12, align 8, !tbaa !5
  %79 = load i32, ptr %78, align 4, !tbaa !11
  %80 = call noundef ptr @_Z18get_compact_vectorISt7complexIdEEPT_S3_ii(ptr noundef %75, i32 noundef %77, i32 noundef %79)
  store ptr %80, ptr %20, align 8, !tbaa !5
  call void @llvm.lifetime.start.p0(i64 4, ptr %21) #6
  %81 = load ptr, ptr %8, align 8, !tbaa !5
  %82 = load i8, ptr %81, align 1, !tbaa !13
  %83 = sext i8 %82 to i32
  %84 = icmp eq i32 %83, 85
  br i1 %84, label %90, label %85

85:                                               ; preds = %74
  %86 = load ptr, ptr %8, align 8, !tbaa !5
  %87 = load i8, ptr %86, align 1, !tbaa !13
  %88 = sext i8 %87 to i32
  %89 = icmp eq i32 %88, 117
  br i1 %89, label %90, label %91

90:                                               ; preds = %85, %74
  br label %105

91:                                               ; preds = %85
  %92 = load ptr, ptr %8, align 8, !tbaa !5
  %93 = load i8, ptr %92, align 1, !tbaa !13
  %94 = sext i8 %93 to i32
  %95 = icmp eq i32 %94, 76
  br i1 %95, label %101, label %96

96:                                               ; preds = %91
  %97 = load ptr, ptr %8, align 8, !tbaa !5
  %98 = load i8, ptr %97, align 1, !tbaa !13
  %99 = sext i8 %98 to i32
  %100 = icmp eq i32 %99, 108
  br label %101

101:                                              ; preds = %96, %91
  %102 = phi i1 [ true, %91 ], [ %100, %96 ]
  %103 = zext i1 %102 to i64
  %104 = select i1 %102, i32 1, i32 255
  br label %105

105:                                              ; preds = %101, %90
  %106 = phi i32 [ 0, %90 ], [ %104, %101 ]
  store i32 %106, ptr %21, align 4, !tbaa !11
  %107 = load i32, ptr %21, align 4, !tbaa !11
  %108 = icmp sge i32 %107, 2
  br i1 %108, label %115, label %109

109:                                              ; preds = %105
  %110 = load i32, ptr %21, align 4, !tbaa !11
  %111 = sext i32 %110 to i64
  %112 = getelementptr inbounds [2 x ptr], ptr @_ZZ5zhpr_E4func, i64 0, i64 %111
  %113 = load ptr, ptr %112, align 8, !tbaa !5
  %114 = icmp eq ptr %113, null
  br i1 %114, label %115, label %116

115:                                              ; preds = %109, %105
  store i32 0, ptr %7, align 4
  store i32 1, ptr %18, align 4
  br label %135

116:                                              ; preds = %109
  %117 = load i32, ptr %21, align 4, !tbaa !11
  %118 = sext i32 %117 to i64
  %119 = getelementptr inbounds [2 x ptr], ptr @_ZZ5zhpr_E4func, i64 0, i64 %118
  %120 = load ptr, ptr %119, align 8, !tbaa !5
  %121 = load ptr, ptr %9, align 8, !tbaa !5
  %122 = load i32, ptr %121, align 4, !tbaa !11
  %123 = load ptr, ptr %15, align 8, !tbaa !5
  %124 = load ptr, ptr %20, align 8, !tbaa !5
  %125 = load double, ptr %16, align 8, !tbaa !9
  call void %120(i32 noundef %122, ptr noundef %123, ptr noundef %124, double noundef %125)
  %126 = load ptr, ptr %20, align 8, !tbaa !5
  %127 = load ptr, ptr %14, align 8, !tbaa !5
  %128 = icmp ne ptr %126, %127
  br i1 %128, label %129, label %134

129:                                              ; preds = %116
  %130 = load ptr, ptr %20, align 8, !tbaa !5
  %131 = icmp eq ptr %130, null
  br i1 %131, label %133, label %132

132:                                              ; preds = %129
  call void @_ZdaPv(ptr noundef %130) #7
  br label %133

133:                                              ; preds = %132, %129
  br label %134

134:                                              ; preds = %133, %116
  store i32 1, ptr %7, align 4
  store i32 1, ptr %18, align 4
  br label %135

135:                                              ; preds = %134, %115
  call void @llvm.lifetime.end.p0(i64 4, ptr %21) #6
  call void @llvm.lifetime.end.p0(i64 8, ptr %20) #6
  br label %136

136:                                              ; preds = %135, %73, %69
  call void @llvm.lifetime.end.p0(i64 4, ptr %17) #6
  call void @llvm.lifetime.end.p0(i64 8, ptr %16) #6
  call void @llvm.lifetime.end.p0(i64 8, ptr %15) #6
  call void @llvm.lifetime.end.p0(i64 8, ptr %14) #6
  %137 = load i32, ptr %7, align 4
  ret i32 %137
}

; Function Attrs: inlinehint mustprogress nounwind uwtable
declare dso_local noundef zeroext i1 @_ZSteqIdEbRKT_RKSt7complexIS0_E(ptr noundef nonnull align 8 dereferenceable(8), ptr noundef nonnull align 8 dereferenceable(16)) #5

attributes #0 = { nocallback nofree nosync nounwind willreturn memory(argmem: readwrite) }
attributes #1 = { 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 = { nobuiltin 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 = { 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 #6 = { nounwind }
attributes #7 = { builtin 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 = !{!"double", !7, i64 0}
!11 = !{!12, !12, i64 0}
!12 = !{!"int", !7, i64 0}
!13 = !{!7, !7, i64 0}


; 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::complex" = type { { double, double } }

@_ZZ5zhpr_E4func = external hidden local_unnamed_addr constant [2 x ptr], align 16
@.str.8 = external hidden unnamed_addr constant [7 x i8], align 1

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

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

; Function Attrs: mustprogress nounwind uwtable
declare dso_local void @_ZNSt7complexIdEC2Edd(ptr noundef nonnull align 8 dereferenceable(16), double noundef, double noundef) unnamed_addr #1 align 2

declare i32 @xerbla_(ptr noundef, ptr noundef, i32 noundef) local_unnamed_addr #2

; Function Attrs: mustprogress uwtable
declare dso_local noundef ptr @_Z18get_compact_vectorISt7complexIdEEPT_S3_ii(ptr noundef, i32 noundef, i32 noundef) local_unnamed_addr #3

; Function Attrs: nobuiltin nounwind
declare void @_ZdaPv(ptr noundef) local_unnamed_addr #4

; Function Attrs: mustprogress uwtable
define dso_local i32 @zhpr_(ptr nocapture noundef readonly %0, ptr nocapture noundef readonly %1, ptr nocapture noundef readonly %2, ptr noundef %3, ptr nocapture noundef readonly %4, ptr noundef %5) local_unnamed_addr #3 {
  %7 = alloca double, align 8
  %8 = alloca i32, align 4
  %9 = alloca %"class.std::complex", align 8
  call void @llvm.lifetime.start.p0(i64 8, ptr nonnull %7) #6
  %10 = load double, ptr %2, align 8, !tbaa !5
  store double %10, ptr %7, align 8, !tbaa !5
  call void @llvm.lifetime.start.p0(i64 4, ptr nonnull %8) #6
  %11 = load i8, ptr %0, align 1, !tbaa !9
  switch i8 %11, label %12 [
    i8 85, label %.critedge
    i8 117, label %.critedge
    i8 76, label %.critedge
    i8 108, label %.critedge
  ]

12:                                               ; preds = %6
  store i32 1, ptr %8, align 4, !tbaa !10
  br label %.thread

.critedge:                                        ; preds = %6, %6, %6, %6
  %13 = load i32, ptr %1, align 4, !tbaa !10
  %14 = icmp slt i32 %13, 0
  br i1 %14, label %15, label %16

15:                                               ; preds = %.critedge
  store i32 2, ptr %8, align 4, !tbaa !10
  br label %.thread

16:                                               ; preds = %.critedge
  %17 = load i32, ptr %4, align 4, !tbaa !10
  %18 = icmp eq i32 %17, 0
  br i1 %18, label %19, label %21

19:                                               ; preds = %16
  store i32 5, ptr %8, align 4, !tbaa !10
  br label %.thread

.thread:                                          ; preds = %12, %19, %15
  %20 = call i32 @xerbla_(ptr noundef nonnull @.str.8, ptr noundef nonnull %8, i32 noundef 6)
  br label %37

21:                                               ; preds = %16
  call void @llvm.lifetime.start.p0(i64 16, ptr nonnull %9) #6
  call void @_ZNSt7complexIdEC2Edd(ptr noundef nonnull align 8 dereferenceable(16) %9, double noundef 0.000000e+00, double noundef 0.000000e+00)
  %22 = call noundef zeroext i1 @_ZSteqIdEbRKT_RKSt7complexIS0_E(ptr noundef nonnull align 8 dereferenceable(8) %7, ptr noundef nonnull align 8 dereferenceable(16) %9)
  call void @llvm.lifetime.end.p0(i64 16, ptr nonnull %9) #6
  br i1 %22, label %37, label %23

23:                                               ; preds = %21
  %24 = load i32, ptr %1, align 4, !tbaa !10
  %25 = load i32, ptr %4, align 4, !tbaa !10
  %26 = call noundef ptr @_Z18get_compact_vectorISt7complexIdEEPT_S3_ii(ptr noundef %3, i32 noundef %24, i32 noundef %25)
  %27 = load i8, ptr %0, align 1, !tbaa !9
  switch i8 %27, label %37 [
    i8 85, label %select.unfold
    i8 117, label %select.unfold
    i8 76, label %28
    i8 108, label %select.unfold.fold.split
  ]

28:                                               ; preds = %23
  br label %select.unfold

select.unfold.fold.split:                         ; preds = %23
  br label %select.unfold

select.unfold:                                    ; preds = %23, %23, %select.unfold.fold.split, %28
  %.ph = phi i64 [ 1, %28 ], [ 0, %23 ], [ 0, %23 ], [ 1, %select.unfold.fold.split ]
  %29 = getelementptr inbounds [2 x ptr], ptr @_ZZ5zhpr_E4func, i64 0, i64 %.ph
  %30 = load ptr, ptr %29, align 8, !tbaa !12
  %31 = icmp eq ptr %30, null
  br i1 %31, label %37, label %32

32:                                               ; preds = %select.unfold
  %33 = load i32, ptr %1, align 4, !tbaa !10
  %34 = load double, ptr %7, align 8, !tbaa !5
  call void %30(i32 noundef %33, ptr noundef %5, ptr noundef %26, double noundef %34)
  %.not30 = icmp eq ptr %26, %3
  %35 = icmp eq ptr %26, null
  %or.cond = or i1 %.not30, %35
  br i1 %or.cond, label %37, label %36

36:                                               ; preds = %32
  call void @_ZdaPv(ptr noundef nonnull %26) #7
  br label %37

37:                                               ; preds = %23, %select.unfold, %36, %32, %21, %.thread
  %.1 = phi i32 [ %20, %.thread ], [ 1, %21 ], [ 0, %select.unfold ], [ 1, %36 ], [ 1, %32 ], [ 0, %23 ]
  call void @llvm.lifetime.end.p0(i64 4, ptr nonnull %8) #6
  call void @llvm.lifetime.end.p0(i64 8, ptr nonnull %7) #6
  ret i32 %.1
}

; Function Attrs: inlinehint mustprogress nounwind uwtable
declare dso_local noundef zeroext i1 @_ZSteqIdEbRKT_RKSt7complexIS0_E(ptr noundef nonnull align 8 dereferenceable(8), ptr noundef nonnull align 8 dereferenceable(16)) local_unnamed_addr #5

attributes #0 = { mustprogress nocallback nofree nosync nounwind willreturn memory(argmem: readwrite) }
attributes #1 = { 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 = { nobuiltin 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 = { 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 #6 = { nounwind }
attributes #7 = { builtin 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 = !{!"double", !7, i64 0}
!7 = !{!"omnipotent char", !8, i64 0}
!8 = !{!"Simple C++ TBAA"}
!9 = !{!7, !7, i64 0}
!10 = !{!11, !11, i64 0}
!11 = !{!"int", !7, i64 0}
!12 = !{!13, !13, i64 0}
!13 = !{!"any pointer", !7, i64 0}


; Effective O3 passes: CorrelatedValuePropagationPass,DSEPass,EarlyCSEPass,GVNPass,GlobalOptPass,IPSCCPPass,InferFunctionAttrsPass,InstCombinePass,JumpThreadingPass,PostOrderFunctionAttrsPass,SCCPPass,SROAPass,SimplifyCFGPass