; LLVM IR from dynexcoin/Dynex :: external/miniupnpc (minihttptestserver)

; 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: 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 @build_favicon_content(ptr noundef %0, i64 noundef %1) #1 {
  %3 = alloca ptr, align 8
  %4 = alloca i64, align 8
  %5 = alloca i32, align 4
  %6 = alloca i32, align 4
  store ptr %0, ptr %3, align 8, !tbaa !5
  store i64 %1, ptr %4, align 8, !tbaa !9
  call void @llvm.lifetime.start.p0(i64 4, ptr %5) #2
  %7 = load i64, ptr %4, align 8, !tbaa !9
  %8 = icmp ult i64 %7, 198
  br i1 %8, label %9, label %10

9:                                                ; preds = %2
  store i32 1, ptr %6, align 4
  br label %149

10:                                               ; preds = %2
  %11 = load ptr, ptr %3, align 8, !tbaa !5
  %12 = getelementptr inbounds i8, ptr %11, i32 1
  store ptr %12, ptr %3, align 8, !tbaa !5
  store i8 0, ptr %11, align 1, !tbaa !11
  %13 = load ptr, ptr %3, align 8, !tbaa !5
  %14 = getelementptr inbounds i8, ptr %13, i32 1
  store ptr %14, ptr %3, align 8, !tbaa !5
  store i8 0, ptr %13, align 1, !tbaa !11
  %15 = load ptr, ptr %3, align 8, !tbaa !5
  %16 = getelementptr inbounds i8, ptr %15, i32 1
  store ptr %16, ptr %3, align 8, !tbaa !5
  store i8 1, ptr %15, align 1, !tbaa !11
  %17 = load ptr, ptr %3, align 8, !tbaa !5
  %18 = getelementptr inbounds i8, ptr %17, i32 1
  store ptr %18, ptr %3, align 8, !tbaa !5
  store i8 0, ptr %17, align 1, !tbaa !11
  %19 = load ptr, ptr %3, align 8, !tbaa !5
  %20 = getelementptr inbounds i8, ptr %19, i32 1
  store ptr %20, ptr %3, align 8, !tbaa !5
  store i8 1, ptr %19, align 1, !tbaa !11
  %21 = load ptr, ptr %3, align 8, !tbaa !5
  %22 = getelementptr inbounds i8, ptr %21, i32 1
  store ptr %22, ptr %3, align 8, !tbaa !5
  store i8 0, ptr %21, align 1, !tbaa !11
  %23 = load ptr, ptr %3, align 8, !tbaa !5
  %24 = getelementptr inbounds i8, ptr %23, i32 1
  store ptr %24, ptr %3, align 8, !tbaa !5
  store i8 16, ptr %23, align 1, !tbaa !11
  %25 = load ptr, ptr %3, align 8, !tbaa !5
  %26 = getelementptr inbounds i8, ptr %25, i32 1
  store ptr %26, ptr %3, align 8, !tbaa !5
  store i8 16, ptr %25, align 1, !tbaa !11
  %27 = load ptr, ptr %3, align 8, !tbaa !5
  %28 = getelementptr inbounds i8, ptr %27, i32 1
  store ptr %28, ptr %3, align 8, !tbaa !5
  store i8 2, ptr %27, align 1, !tbaa !11
  %29 = load ptr, ptr %3, align 8, !tbaa !5
  %30 = getelementptr inbounds i8, ptr %29, i32 1
  store ptr %30, ptr %3, align 8, !tbaa !5
  store i8 0, ptr %29, align 1, !tbaa !11
  %31 = load ptr, ptr %3, align 8, !tbaa !5
  %32 = getelementptr inbounds i8, ptr %31, i32 1
  store ptr %32, ptr %3, align 8, !tbaa !5
  store i8 1, ptr %31, align 1, !tbaa !11
  %33 = load ptr, ptr %3, align 8, !tbaa !5
  %34 = getelementptr inbounds i8, ptr %33, i32 1
  store ptr %34, ptr %3, align 8, !tbaa !5
  store i8 0, ptr %33, align 1, !tbaa !11
  %35 = load ptr, ptr %3, align 8, !tbaa !5
  %36 = getelementptr inbounds i8, ptr %35, i32 1
  store ptr %36, ptr %3, align 8, !tbaa !5
  store i8 1, ptr %35, align 1, !tbaa !11
  %37 = load ptr, ptr %3, align 8, !tbaa !5
  %38 = getelementptr inbounds i8, ptr %37, i32 1
  store ptr %38, ptr %3, align 8, !tbaa !5
  store i8 0, ptr %37, align 1, !tbaa !11
  %39 = load ptr, ptr %3, align 8, !tbaa !5
  %40 = getelementptr inbounds i8, ptr %39, i32 1
  store ptr %40, ptr %3, align 8, !tbaa !5
  store i8 -80, ptr %39, align 1, !tbaa !11
  %41 = load ptr, ptr %3, align 8, !tbaa !5
  %42 = getelementptr inbounds i8, ptr %41, i32 1
  store ptr %42, ptr %3, align 8, !tbaa !5
  store i8 0, ptr %41, align 1, !tbaa !11
  %43 = load ptr, ptr %3, align 8, !tbaa !5
  %44 = getelementptr inbounds i8, ptr %43, i32 1
  store ptr %44, ptr %3, align 8, !tbaa !5
  store i8 0, ptr %43, align 1, !tbaa !11
  %45 = load ptr, ptr %3, align 8, !tbaa !5
  %46 = getelementptr inbounds i8, ptr %45, i32 1
  store ptr %46, ptr %3, align 8, !tbaa !5
  store i8 0, ptr %45, align 1, !tbaa !11
  %47 = load ptr, ptr %3, align 8, !tbaa !5
  %48 = getelementptr inbounds i8, ptr %47, i32 1
  store ptr %48, ptr %3, align 8, !tbaa !5
  store i8 22, ptr %47, align 1, !tbaa !11
  %49 = load ptr, ptr %3, align 8, !tbaa !5
  %50 = getelementptr inbounds i8, ptr %49, i32 1
  store ptr %50, ptr %3, align 8, !tbaa !5
  store i8 0, ptr %49, align 1, !tbaa !11
  %51 = load ptr, ptr %3, align 8, !tbaa !5
  %52 = getelementptr inbounds i8, ptr %51, i32 1
  store ptr %52, ptr %3, align 8, !tbaa !5
  store i8 0, ptr %51, align 1, !tbaa !11
  %53 = load ptr, ptr %3, align 8, !tbaa !5
  %54 = getelementptr inbounds i8, ptr %53, i32 1
  store ptr %54, ptr %3, align 8, !tbaa !5
  store i8 0, ptr %53, align 1, !tbaa !11
  %55 = load ptr, ptr %3, align 8, !tbaa !5
  %56 = getelementptr inbounds i8, ptr %55, i32 1
  store ptr %56, ptr %3, align 8, !tbaa !5
  store i8 40, ptr %55, align 1, !tbaa !11
  %57 = load ptr, ptr %3, align 8, !tbaa !5
  %58 = getelementptr inbounds i8, ptr %57, i32 1
  store ptr %58, ptr %3, align 8, !tbaa !5
  store i8 0, ptr %57, align 1, !tbaa !11
  %59 = load ptr, ptr %3, align 8, !tbaa !5
  %60 = getelementptr inbounds i8, ptr %59, i32 1
  store ptr %60, ptr %3, align 8, !tbaa !5
  store i8 0, ptr %59, align 1, !tbaa !11
  %61 = load ptr, ptr %3, align 8, !tbaa !5
  %62 = getelementptr inbounds i8, ptr %61, i32 1
  store ptr %62, ptr %3, align 8, !tbaa !5
  store i8 0, ptr %61, align 1, !tbaa !11
  %63 = load ptr, ptr %3, align 8, !tbaa !5
  %64 = getelementptr inbounds i8, ptr %63, i32 1
  store ptr %64, ptr %3, align 8, !tbaa !5
  store i8 16, ptr %63, align 1, !tbaa !11
  %65 = load ptr, ptr %3, align 8, !tbaa !5
  %66 = getelementptr inbounds i8, ptr %65, i32 1
  store ptr %66, ptr %3, align 8, !tbaa !5
  store i8 0, ptr %65, align 1, !tbaa !11
  %67 = load ptr, ptr %3, align 8, !tbaa !5
  %68 = getelementptr inbounds i8, ptr %67, i32 1
  store ptr %68, ptr %3, align 8, !tbaa !5
  store i8 0, ptr %67, align 1, !tbaa !11
  %69 = load ptr, ptr %3, align 8, !tbaa !5
  %70 = getelementptr inbounds i8, ptr %69, i32 1
  store ptr %70, ptr %3, align 8, !tbaa !5
  store i8 0, ptr %69, align 1, !tbaa !11
  %71 = load ptr, ptr %3, align 8, !tbaa !5
  %72 = getelementptr inbounds i8, ptr %71, i32 1
  store ptr %72, ptr %3, align 8, !tbaa !5
  store i8 32, ptr %71, align 1, !tbaa !11
  %73 = load ptr, ptr %3, align 8, !tbaa !5
  %74 = getelementptr inbounds i8, ptr %73, i32 1
  store ptr %74, ptr %3, align 8, !tbaa !5
  store i8 0, ptr %73, align 1, !tbaa !11
  %75 = load ptr, ptr %3, align 8, !tbaa !5
  %76 = getelementptr inbounds i8, ptr %75, i32 1
  store ptr %76, ptr %3, align 8, !tbaa !5
  store i8 0, ptr %75, align 1, !tbaa !11
  %77 = load ptr, ptr %3, align 8, !tbaa !5
  %78 = getelementptr inbounds i8, ptr %77, i32 1
  store ptr %78, ptr %3, align 8, !tbaa !5
  store i8 0, ptr %77, align 1, !tbaa !11
  %79 = load ptr, ptr %3, align 8, !tbaa !5
  %80 = getelementptr inbounds i8, ptr %79, i32 1
  store ptr %80, ptr %3, align 8, !tbaa !5
  store i8 1, ptr %79, align 1, !tbaa !11
  %81 = load ptr, ptr %3, align 8, !tbaa !5
  %82 = getelementptr inbounds i8, ptr %81, i32 1
  store ptr %82, ptr %3, align 8, !tbaa !5
  store i8 0, ptr %81, align 1, !tbaa !11
  %83 = load ptr, ptr %3, align 8, !tbaa !5
  %84 = getelementptr inbounds i8, ptr %83, i32 1
  store ptr %84, ptr %3, align 8, !tbaa !5
  store i8 1, ptr %83, align 1, !tbaa !11
  %85 = load ptr, ptr %3, align 8, !tbaa !5
  %86 = getelementptr inbounds i8, ptr %85, i32 1
  store ptr %86, ptr %3, align 8, !tbaa !5
  store i8 0, ptr %85, align 1, !tbaa !11
  store i32 24, ptr %5, align 4, !tbaa !12
  br label %87

87:                                               ; preds = %93, %10
  %88 = load i32, ptr %5, align 4, !tbaa !12
  %89 = icmp sgt i32 %88, 0
  br i1 %89, label %90, label %96

90:                                               ; preds = %87
  %91 = load ptr, ptr %3, align 8, !tbaa !5
  %92 = getelementptr inbounds i8, ptr %91, i32 1
  store ptr %92, ptr %3, align 8, !tbaa !5
  store i8 0, ptr %91, align 1, !tbaa !11
  br label %93

93:                                               ; preds = %90
  %94 = load i32, ptr %5, align 4, !tbaa !12
  %95 = add nsw i32 %94, -1
  store i32 %95, ptr %5, align 4, !tbaa !12
  br label %87, !llvm.loop !14

96:                                               ; preds = %87
  %97 = load ptr, ptr %3, align 8, !tbaa !5
  %98 = getelementptr inbounds i8, ptr %97, i32 1
  store ptr %98, ptr %3, align 8, !tbaa !5
  store i8 0, ptr %97, align 1, !tbaa !11
  %99 = load ptr, ptr %3, align 8, !tbaa !5
  %100 = getelementptr inbounds i8, ptr %99, i32 1
  store ptr %100, ptr %3, align 8, !tbaa !5
  store i8 0, ptr %99, align 1, !tbaa !11
  %101 = load ptr, ptr %3, align 8, !tbaa !5
  %102 = getelementptr inbounds i8, ptr %101, i32 1
  store ptr %102, ptr %3, align 8, !tbaa !5
  store i8 0, ptr %101, align 1, !tbaa !11
  %103 = load ptr, ptr %3, align 8, !tbaa !5
  %104 = getelementptr inbounds i8, ptr %103, i32 1
  store ptr %104, ptr %3, align 8, !tbaa !5
  store i8 0, ptr %103, align 1, !tbaa !11
  %105 = load ptr, ptr %3, align 8, !tbaa !5
  %106 = getelementptr inbounds i8, ptr %105, i32 1
  store ptr %106, ptr %3, align 8, !tbaa !5
  store i8 -1, ptr %105, align 1, !tbaa !11
  %107 = load ptr, ptr %3, align 8, !tbaa !5
  %108 = getelementptr inbounds i8, ptr %107, i32 1
  store ptr %108, ptr %3, align 8, !tbaa !5
  store i8 -1, ptr %107, align 1, !tbaa !11
  %109 = load ptr, ptr %3, align 8, !tbaa !5
  %110 = getelementptr inbounds i8, ptr %109, i32 1
  store ptr %110, ptr %3, align 8, !tbaa !5
  store i8 -1, ptr %109, align 1, !tbaa !11
  %111 = load ptr, ptr %3, align 8, !tbaa !5
  %112 = getelementptr inbounds i8, ptr %111, i32 1
  store ptr %112, ptr %3, align 8, !tbaa !5
  store i8 0, ptr %111, align 1, !tbaa !11
  store i32 16, ptr %5, align 4, !tbaa !12
  br label %113

113:                                              ; preds = %135, %96
  %114 = load i32, ptr %5, align 4, !tbaa !12
  %115 = icmp sgt i32 %114, 0
  br i1 %115, label %116, label %138

116:                                              ; preds = %113
  %117 = load i32, ptr %5, align 4, !tbaa !12
  %118 = and i32 %117, 1
  %119 = icmp ne i32 %118, 0
  br i1 %119, label %120, label %125

120:                                              ; preds = %116
  %121 = load ptr, ptr %3, align 8, !tbaa !5
  %122 = getelementptr inbounds i8, ptr %121, i32 1
  store ptr %122, ptr %3, align 8, !tbaa !5
  store i8 85, ptr %121, align 1, !tbaa !11
  %123 = load ptr, ptr %3, align 8, !tbaa !5
  %124 = getelementptr inbounds i8, ptr %123, i32 1
  store ptr %124, ptr %3, align 8, !tbaa !5
  store i8 85, ptr %123, align 1, !tbaa !11
  br label %130

125:                                              ; preds = %116
  %126 = load ptr, ptr %3, align 8, !tbaa !5
  %127 = getelementptr inbounds i8, ptr %126, i32 1
  store ptr %127, ptr %3, align 8, !tbaa !5
  store i8 -86, ptr %126, align 1, !tbaa !11
  %128 = load ptr, ptr %3, align 8, !tbaa !5
  %129 = getelementptr inbounds i8, ptr %128, i32 1
  store ptr %129, ptr %3, align 8, !tbaa !5
  store i8 -86, ptr %128, align 1, !tbaa !11
  br label %130

130:                                              ; preds = %125, %120
  %131 = load ptr, ptr %3, align 8, !tbaa !5
  %132 = getelementptr inbounds i8, ptr %131, i32 1
  store ptr %132, ptr %3, align 8, !tbaa !5
  store i8 0, ptr %131, align 1, !tbaa !11
  %133 = load ptr, ptr %3, align 8, !tbaa !5
  %134 = getelementptr inbounds i8, ptr %133, i32 1
  store ptr %134, ptr %3, align 8, !tbaa !5
  store i8 0, ptr %133, align 1, !tbaa !11
  br label %135

135:                                              ; preds = %130
  %136 = load i32, ptr %5, align 4, !tbaa !12
  %137 = add nsw i32 %136, -1
  store i32 %137, ptr %5, align 4, !tbaa !12
  br label %113, !llvm.loop !16

138:                                              ; preds = %113
  store i32 64, ptr %5, align 4, !tbaa !12
  br label %139

139:                                              ; preds = %145, %138
  %140 = load i32, ptr %5, align 4, !tbaa !12
  %141 = icmp sgt i32 %140, 0
  br i1 %141, label %142, label %148

142:                                              ; preds = %139
  %143 = load ptr, ptr %3, align 8, !tbaa !5
  %144 = getelementptr inbounds i8, ptr %143, i32 1
  store ptr %144, ptr %3, align 8, !tbaa !5
  store i8 0, ptr %143, align 1, !tbaa !11
  br label %145

145:                                              ; preds = %142
  %146 = load i32, ptr %5, align 4, !tbaa !12
  %147 = add nsw i32 %146, -1
  store i32 %147, ptr %5, align 4, !tbaa !12
  br label %139, !llvm.loop !17

148:                                              ; preds = %139
  store i32 0, ptr %6, align 4
  br label %149

149:                                              ; preds = %148, %9
  call void @llvm.lifetime.end.p0(i64 4, ptr %5) #2
  %150 = load i32, ptr %6, align 4
  switch i32 %150, label %152 [
    i32 0, label %151
    i32 1, label %151
  ]

151:                                              ; preds = %149, %149
  ret void

152:                                              ; preds = %149
  unreachable
}

attributes #0 = { nocallback nofree nosync nounwind willreturn memory(argmem: readwrite) }
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 = !{!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 = !{!"long", !7, i64 0}
!11 = !{!7, !7, i64 0}
!12 = !{!13, !13, i64 0}
!13 = !{!"int", !7, i64 0}
!14 = distinct !{!14, !15}
!15 = !{!"llvm.loop.mustprogress"}
!16 = distinct !{!16, !15}
!17 = distinct !{!17, !15}


; 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: mustprogress nofree norecurse nosync nounwind willreturn memory(argmem: write) uwtable
define dso_local void @build_favicon_content(ptr noundef writeonly %0, i64 noundef %1) local_unnamed_addr #0 {
  %3 = icmp ult i64 %1, 198
  br i1 %3, label %.loopexit, label %.preheader.preheader

.preheader.preheader:                             ; preds = %2
  %4 = getelementptr inbounds i8, ptr %0, i64 16
  store <16 x i8> <i8 0, i8 0, i8 1, i8 0, i8 1, i8 0, i8 16, i8 16, i8 2, i8 0, i8 1, i8 0, i8 1, i8 0, i8 -80, i8 0>, ptr %0, align 1, !tbaa !5
  %5 = getelementptr inbounds i8, ptr %0, i64 32
  store <16 x i8> <i8 0, i8 0, i8 22, i8 0, i8 0, i8 0, i8 40, i8 0, i8 0, i8 0, i8 16, i8 0, i8 0, i8 0, i8 32, i8 0>, ptr %4, align 1, !tbaa !5
  %6 = getelementptr inbounds i8, ptr %0, i64 36
  store <4 x i8> <i8 0, i8 0, i8 1, i8 0>, ptr %5, align 1, !tbaa !5
  %7 = getelementptr inbounds i8, ptr %0, i64 37
  store i8 1, ptr %6, align 1, !tbaa !5
  %8 = getelementptr i8, ptr %0, i64 66
  tail call void @llvm.memset.p0.i64(ptr noundef nonnull align 1 dereferenceable(29) %7, i8 0, i64 29, i1 false)
  %9 = getelementptr i8, ptr %0, i64 82
  store <16 x i8> <i8 -1, i8 -1, i8 -1, i8 0, i8 -86, i8 -86, i8 0, i8 0, i8 85, i8 85, i8 0, i8 0, i8 -86, i8 -86, i8 0, i8 0>, ptr %8, align 1
  %10 = getelementptr i8, ptr %0, i64 98
  store <16 x i8> <i8 85, i8 85, i8 0, i8 0, i8 -86, i8 -86, i8 0, i8 0, i8 85, i8 85, i8 0, i8 0, i8 -86, i8 -86, i8 0, i8 0>, ptr %9, align 1
  %11 = getelementptr i8, ptr %0, i64 114
  store <16 x i8> <i8 85, i8 85, i8 0, i8 0, i8 -86, i8 -86, i8 0, i8 0, i8 85, i8 85, i8 0, i8 0, i8 -86, i8 -86, i8 0, i8 0>, ptr %10, align 1
  %12 = getelementptr i8, ptr %0, i64 130
  store <16 x i8> <i8 85, i8 85, i8 0, i8 0, i8 -86, i8 -86, i8 0, i8 0, i8 85, i8 85, i8 0, i8 0, i8 -86, i8 -86, i8 0, i8 0>, ptr %11, align 1
  store i8 85, ptr %12, align 1
  %13 = getelementptr i8, ptr %0, i64 131
  store i8 85, ptr %13, align 1
  %.263.15 = getelementptr i8, ptr %0, i64 132
  tail call void @llvm.memset.p0.i64(ptr noundef nonnull align 1 dereferenceable(66) %.263.15, i8 0, i64 66, i1 false)
  br label %.loopexit

.loopexit:                                        ; preds = %.preheader.preheader, %2
  ret void
}

; Function Attrs: nocallback nofree nounwind willreturn memory(argmem: write)
declare void @llvm.memset.p0.i64(ptr nocapture writeonly, i8, i64, i1 immarg) #1

attributes #0 = { mustprogress nofree norecurse nosync nounwind willreturn memory(argmem: write) 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 nounwind willreturn memory(argmem: write) }

!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 = !{!"omnipotent char", !7, i64 0}
!7 = !{!"Simple C/C++ TBAA"}


; Effective O3 passes: GVNPass,GlobalOptPass,IndVarSimplifyPass,InferFunctionAttrsPass,InstCombinePass,JumpThreadingPass,LCSSAPass,LoopIdiomRecognizePass,LoopRotatePass,LoopSimplifyPass,MemCpyOptPass,MergedLoadStoreMotionPass,PostOrderFunctionAttrsPass,SCCPPass,SLPVectorizerPass,SROAPass,SimplifyCFGPass,TailCallElimPass