; LLVM IR from jgaeddert/liquid-dsp :: src/filter/src (filter_rrrf)

; 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"

%struct.symsync_rrrf_s = type { i32, i32, i32, i32, i32, float, float, float, float, float, i32, float, float, [3 x float], [3 x float], ptr, float, i32, ptr, ptr }

; 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: nocallback nofree nosync nounwind speculatable willreturn memory(none)
declare float @llvm.round.f32(float) #1

; Function Attrs: nounwind uwtable
declare dso_local i32 @firpfb_rrrf_push(ptr noundef, float noundef) #2

; Function Attrs: nounwind uwtable
declare dso_local i32 @firpfb_rrrf_execute(ptr noundef, i32 noundef, ptr noundef) #2

; Function Attrs: nounwind uwtable
define dso_local i32 @symsync_rrrf_step(ptr noundef %0, float noundef %1, ptr noundef %2, ptr noundef %3) #2 {
  %5 = alloca ptr, align 8
  %6 = alloca float, align 4
  %7 = alloca ptr, align 8
  %8 = alloca ptr, align 8
  %9 = alloca float, align 4
  %10 = alloca float, align 4
  %11 = alloca i32, align 4
  store ptr %0, ptr %5, align 8, !tbaa !5
  store float %1, ptr %6, align 4, !tbaa !9
  store ptr %2, ptr %7, align 8, !tbaa !5
  store ptr %3, ptr %8, align 8, !tbaa !5
  %12 = load ptr, ptr %5, align 8, !tbaa !5
  %13 = getelementptr inbounds %struct.symsync_rrrf_s, ptr %12, i32 0, i32 18
  %14 = load ptr, ptr %13, align 8, !tbaa !11
  %15 = load float, ptr %6, align 4, !tbaa !9
  %16 = call i32 @firpfb_rrrf_push(ptr noundef %14, float noundef %15)
  %17 = load ptr, ptr %5, align 8, !tbaa !5
  %18 = getelementptr inbounds %struct.symsync_rrrf_s, ptr %17, i32 0, i32 19
  %19 = load ptr, ptr %18, align 8, !tbaa !14
  %20 = load float, ptr %6, align 4, !tbaa !9
  %21 = call i32 @firpfb_rrrf_push(ptr noundef %19, float noundef %20)
  call void @llvm.lifetime.start.p0(i64 4, ptr %9) #3
  call void @llvm.lifetime.start.p0(i64 4, ptr %10) #3
  call void @llvm.lifetime.start.p0(i64 4, ptr %11) #3
  store i32 0, ptr %11, align 4, !tbaa !15
  br label %22

22:                                               ; preds = %80, %62, %4
  %23 = load ptr, ptr %5, align 8, !tbaa !5
  %24 = getelementptr inbounds %struct.symsync_rrrf_s, ptr %23, i32 0, i32 10
  %25 = load i32, ptr %24, align 8, !tbaa !16
  %26 = load ptr, ptr %5, align 8, !tbaa !5
  %27 = getelementptr inbounds %struct.symsync_rrrf_s, ptr %26, i32 0, i32 17
  %28 = load i32, ptr %27, align 4, !tbaa !17
  %29 = icmp ult i32 %25, %28
  br i1 %29, label %30, label %111

30:                                               ; preds = %22
  %31 = load ptr, ptr %5, align 8, !tbaa !5
  %32 = getelementptr inbounds %struct.symsync_rrrf_s, ptr %31, i32 0, i32 18
  %33 = load ptr, ptr %32, align 8, !tbaa !11
  %34 = load ptr, ptr %5, align 8, !tbaa !5
  %35 = getelementptr inbounds %struct.symsync_rrrf_s, ptr %34, i32 0, i32 10
  %36 = load i32, ptr %35, align 8, !tbaa !16
  %37 = call i32 @firpfb_rrrf_execute(ptr noundef %33, i32 noundef %36, ptr noundef %9)
  %38 = load float, ptr %9, align 4, !tbaa !9
  %39 = load ptr, ptr %5, align 8, !tbaa !5
  %40 = getelementptr inbounds %struct.symsync_rrrf_s, ptr %39, i32 0, i32 1
  %41 = load i32, ptr %40, align 4, !tbaa !18
  %42 = uitofp i32 %41 to float
  %43 = fdiv float %38, %42
  %44 = load ptr, ptr %7, align 8, !tbaa !5
  %45 = load i32, ptr %11, align 4, !tbaa !15
  %46 = zext i32 %45 to i64
  %47 = getelementptr inbounds float, ptr %44, i64 %46
  store float %43, ptr %47, align 4, !tbaa !9
  %48 = load ptr, ptr %5, align 8, !tbaa !5
  %49 = getelementptr inbounds %struct.symsync_rrrf_s, ptr %48, i32 0, i32 3
  %50 = load i32, ptr %49, align 4, !tbaa !19
  %51 = load ptr, ptr %5, align 8, !tbaa !5
  %52 = getelementptr inbounds %struct.symsync_rrrf_s, ptr %51, i32 0, i32 2
  %53 = load i32, ptr %52, align 8, !tbaa !20
  %54 = icmp eq i32 %50, %53
  br i1 %54, label %55, label %80

55:                                               ; preds = %30
  %56 = load ptr, ptr %5, align 8, !tbaa !5
  %57 = getelementptr inbounds %struct.symsync_rrrf_s, ptr %56, i32 0, i32 3
  store i32 0, ptr %57, align 4, !tbaa !19
  %58 = load ptr, ptr %5, align 8, !tbaa !5
  %59 = getelementptr inbounds %struct.symsync_rrrf_s, ptr %58, i32 0, i32 4
  %60 = load i32, ptr %59, align 8, !tbaa !21
  %61 = icmp ne i32 %60, 0
  br i1 %61, label %62, label %63

62:                                               ; preds = %55
  br label %22, !llvm.loop !22

63:                                               ; preds = %55
  %64 = load ptr, ptr %5, align 8, !tbaa !5
  %65 = getelementptr inbounds %struct.symsync_rrrf_s, ptr %64, i32 0, i32 19
  %66 = load ptr, ptr %65, align 8, !tbaa !14
  %67 = load ptr, ptr %5, align 8, !tbaa !5
  %68 = getelementptr inbounds %struct.symsync_rrrf_s, ptr %67, i32 0, i32 10
  %69 = load i32, ptr %68, align 8, !tbaa !16
  %70 = call i32 @firpfb_rrrf_execute(ptr noundef %66, i32 noundef %69, ptr noundef %10)
  %71 = load ptr, ptr %5, align 8, !tbaa !5
  %72 = load float, ptr %9, align 4, !tbaa !9
  %73 = load float, ptr %10, align 4, !tbaa !9
  %74 = call i32 @symsync_rrrf_advance_internal_loop(ptr noundef %71, float noundef %72, float noundef %73)
  %75 = load ptr, ptr %5, align 8, !tbaa !5
  %76 = getelementptr inbounds %struct.symsync_rrrf_s, ptr %75, i32 0, i32 7
  %77 = load float, ptr %76, align 4, !tbaa !24
  %78 = load ptr, ptr %5, align 8, !tbaa !5
  %79 = getelementptr inbounds %struct.symsync_rrrf_s, ptr %78, i32 0, i32 8
  store float %77, ptr %79, align 8, !tbaa !25
  br label %80

80:                                               ; preds = %63, %30
  %81 = load ptr, ptr %5, align 8, !tbaa !5
  %82 = getelementptr inbounds %struct.symsync_rrrf_s, ptr %81, i32 0, i32 3
  %83 = load i32, ptr %82, align 4, !tbaa !19
  %84 = add i32 %83, 1
  store i32 %84, ptr %82, align 4, !tbaa !19
  %85 = load ptr, ptr %5, align 8, !tbaa !5
  %86 = getelementptr inbounds %struct.symsync_rrrf_s, ptr %85, i32 0, i32 6
  %87 = load float, ptr %86, align 8, !tbaa !26
  %88 = load ptr, ptr %5, align 8, !tbaa !5
  %89 = getelementptr inbounds %struct.symsync_rrrf_s, ptr %88, i32 0, i32 7
  %90 = load float, ptr %89, align 4, !tbaa !24
  %91 = fadd float %90, %87
  store float %91, ptr %89, align 4, !tbaa !24
  %92 = load ptr, ptr %5, align 8, !tbaa !5
  %93 = getelementptr inbounds %struct.symsync_rrrf_s, ptr %92, i32 0, i32 7
  %94 = load float, ptr %93, align 4, !tbaa !24
  %95 = load ptr, ptr %5, align 8, !tbaa !5
  %96 = getelementptr inbounds %struct.symsync_rrrf_s, ptr %95, i32 0, i32 17
  %97 = load i32, ptr %96, align 4, !tbaa !17
  %98 = uitofp i32 %97 to float
  %99 = fmul float %94, %98
  %100 = load ptr, ptr %5, align 8, !tbaa !5
  %101 = getelementptr inbounds %struct.symsync_rrrf_s, ptr %100, i32 0, i32 9
  store float %99, ptr %101, align 4, !tbaa !27
  %102 = load ptr, ptr %5, align 8, !tbaa !5
  %103 = getelementptr inbounds %struct.symsync_rrrf_s, ptr %102, i32 0, i32 9
  %104 = load float, ptr %103, align 4, !tbaa !27
  %105 = call float @llvm.round.f32(float %104)
  %106 = fptosi float %105 to i32
  %107 = load ptr, ptr %5, align 8, !tbaa !5
  %108 = getelementptr inbounds %struct.symsync_rrrf_s, ptr %107, i32 0, i32 10
  store i32 %106, ptr %108, align 8, !tbaa !16
  %109 = load i32, ptr %11, align 4, !tbaa !15
  %110 = add i32 %109, 1
  store i32 %110, ptr %11, align 4, !tbaa !15
  br label %22, !llvm.loop !22

111:                                              ; preds = %22
  %112 = load ptr, ptr %5, align 8, !tbaa !5
  %113 = getelementptr inbounds %struct.symsync_rrrf_s, ptr %112, i32 0, i32 7
  %114 = load float, ptr %113, align 4, !tbaa !24
  %115 = fsub float %114, 1.000000e+00
  store float %115, ptr %113, align 4, !tbaa !24
  %116 = load ptr, ptr %5, align 8, !tbaa !5
  %117 = getelementptr inbounds %struct.symsync_rrrf_s, ptr %116, i32 0, i32 17
  %118 = load i32, ptr %117, align 4, !tbaa !17
  %119 = uitofp i32 %118 to float
  %120 = load ptr, ptr %5, align 8, !tbaa !5
  %121 = getelementptr inbounds %struct.symsync_rrrf_s, ptr %120, i32 0, i32 9
  %122 = load float, ptr %121, align 4, !tbaa !27
  %123 = fsub float %122, %119
  store float %123, ptr %121, align 4, !tbaa !27
  %124 = load ptr, ptr %5, align 8, !tbaa !5
  %125 = getelementptr inbounds %struct.symsync_rrrf_s, ptr %124, i32 0, i32 17
  %126 = load i32, ptr %125, align 4, !tbaa !17
  %127 = load ptr, ptr %5, align 8, !tbaa !5
  %128 = getelementptr inbounds %struct.symsync_rrrf_s, ptr %127, i32 0, i32 10
  %129 = load i32, ptr %128, align 8, !tbaa !16
  %130 = sub i32 %129, %126
  store i32 %130, ptr %128, align 8, !tbaa !16
  %131 = load i32, ptr %11, align 4, !tbaa !15
  %132 = load ptr, ptr %8, align 8, !tbaa !5
  store i32 %131, ptr %132, align 4, !tbaa !15
  call void @llvm.lifetime.end.p0(i64 4, ptr %11) #3
  call void @llvm.lifetime.end.p0(i64 4, ptr %10) #3
  call void @llvm.lifetime.end.p0(i64 4, ptr %9) #3
  ret i32 0
}

; Function Attrs: nounwind uwtable
declare dso_local i32 @symsync_rrrf_advance_internal_loop(ptr noundef, float noundef, float noundef) #2

attributes #0 = { nocallback nofree nosync nounwind willreturn memory(argmem: readwrite) }
attributes #1 = { nocallback nofree nosync nounwind speculatable willreturn memory(none) }
attributes #2 = { 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 #3 = { 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 = !{!"float", !7, i64 0}
!11 = !{!12, !6, i64 96}
!12 = !{!"symsync_rrrf_s", !13, i64 0, !13, i64 4, !13, i64 8, !13, i64 12, !13, i64 16, !10, i64 20, !10, i64 24, !10, i64 28, !10, i64 32, !10, i64 36, !13, i64 40, !10, i64 44, !10, i64 48, !7, i64 52, !7, i64 64, !6, i64 80, !10, i64 88, !13, i64 92, !6, i64 96, !6, i64 104}
!13 = !{!"int", !7, i64 0}
!14 = !{!12, !6, i64 104}
!15 = !{!13, !13, i64 0}
!16 = !{!12, !13, i64 40}
!17 = !{!12, !13, i64 92}
!18 = !{!12, !13, i64 4}
!19 = !{!12, !13, i64 12}
!20 = !{!12, !13, i64 8}
!21 = !{!12, !13, i64 16}
!22 = distinct !{!22, !23}
!23 = !{!"llvm.loop.mustprogress"}
!24 = !{!12, !10, i64 28}
!25 = !{!12, !10, i64 32}
!26 = !{!12, !10, i64 24}
!27 = !{!12, !10, i64 36}


; 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 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 nocallback nofree nosync nounwind speculatable willreturn memory(none)
declare float @llvm.round.f32(float) #1

; Function Attrs: nounwind uwtable
declare dso_local i32 @firpfb_rrrf_push(ptr noundef, float noundef) local_unnamed_addr #2

; Function Attrs: nounwind uwtable
declare dso_local i32 @firpfb_rrrf_execute(ptr noundef, i32 noundef, ptr noundef) local_unnamed_addr #2

; Function Attrs: nounwind uwtable
define dso_local noundef i32 @symsync_rrrf_step(ptr noundef %0, float noundef %1, ptr nocapture noundef writeonly %2, ptr nocapture noundef writeonly %3) local_unnamed_addr #2 {
  %5 = alloca float, align 4
  %6 = alloca float, align 4
  %7 = getelementptr inbounds i8, ptr %0, i64 96
  %8 = load ptr, ptr %7, align 8, !tbaa !5
  %9 = tail call i32 @firpfb_rrrf_push(ptr noundef %8, float noundef %1)
  %10 = getelementptr inbounds i8, ptr %0, i64 104
  %11 = load ptr, ptr %10, align 8, !tbaa !12
  %12 = tail call i32 @firpfb_rrrf_push(ptr noundef %11, float noundef %1)
  call void @llvm.lifetime.start.p0(i64 4, ptr nonnull %5) #3
  call void @llvm.lifetime.start.p0(i64 4, ptr nonnull %6) #3
  %13 = getelementptr inbounds i8, ptr %0, i64 40
  %14 = getelementptr inbounds i8, ptr %0, i64 92
  %15 = getelementptr inbounds i8, ptr %0, i64 4
  %16 = getelementptr inbounds i8, ptr %0, i64 12
  %17 = getelementptr inbounds i8, ptr %0, i64 8
  %18 = getelementptr inbounds i8, ptr %0, i64 16
  %19 = getelementptr inbounds i8, ptr %0, i64 28
  %20 = getelementptr inbounds i8, ptr %0, i64 32
  %21 = getelementptr inbounds i8, ptr %0, i64 24
  %22 = getelementptr inbounds i8, ptr %0, i64 36
  br label %.outer

.outer:                                           ; preds = %.loopexit, %4
  %.0.ph = phi i32 [ %59, %.loopexit ], [ 0, %4 ]
  %23 = zext i32 %.0.ph to i64
  %24 = getelementptr inbounds float, ptr %2, i64 %23
  br label %25

25:                                               ; preds = %.outer, %39
  %26 = load i32, ptr %13, align 8, !tbaa !13
  %27 = load i32, ptr %14, align 4, !tbaa !14
  %28 = icmp ult i32 %26, %27
  br i1 %28, label %29, label %60

29:                                               ; preds = %25
  %30 = load ptr, ptr %7, align 8, !tbaa !5
  %31 = call i32 @firpfb_rrrf_execute(ptr noundef %30, i32 noundef %26, ptr noundef nonnull %5)
  %32 = load float, ptr %5, align 4, !tbaa !15
  %33 = load i32, ptr %15, align 4, !tbaa !16
  %34 = uitofp i32 %33 to float
  %35 = fdiv float %32, %34
  store float %35, ptr %24, align 4, !tbaa !15
  %36 = load i32, ptr %16, align 4, !tbaa !17
  %37 = load i32, ptr %17, align 8, !tbaa !18
  %38 = icmp eq i32 %36, %37
  br i1 %38, label %39, label %.loopexit.loopexit

39:                                               ; preds = %29
  store i32 0, ptr %16, align 4, !tbaa !17
  %40 = load i32, ptr %18, align 8, !tbaa !19
  %.not = icmp eq i32 %40, 0
  br i1 %.not, label %41, label %25, !llvm.loop !20

41:                                               ; preds = %39
  %42 = load ptr, ptr %10, align 8, !tbaa !12
  %43 = load i32, ptr %13, align 8, !tbaa !13
  %44 = call i32 @firpfb_rrrf_execute(ptr noundef %42, i32 noundef %43, ptr noundef nonnull %6)
  %45 = load float, ptr %5, align 4, !tbaa !15
  %46 = load float, ptr %6, align 4, !tbaa !15
  %47 = call i32 @symsync_rrrf_advance_internal_loop(ptr noundef nonnull %0, float noundef %45, float noundef %46)
  %48 = load float, ptr %19, align 4, !tbaa !22
  store float %48, ptr %20, align 8, !tbaa !23
  %.pre = load i32, ptr %16, align 4, !tbaa !17
  br label %.loopexit

.loopexit.loopexit:                               ; preds = %29
  %.pre54 = load float, ptr %19, align 4, !tbaa !22
  br label %.loopexit

.loopexit:                                        ; preds = %.loopexit.loopexit, %41
  %49 = phi float [ %.pre54, %.loopexit.loopexit ], [ %48, %41 ]
  %50 = phi i32 [ %36, %.loopexit.loopexit ], [ %.pre, %41 ]
  %51 = add i32 %50, 1
  store i32 %51, ptr %16, align 4, !tbaa !17
  %52 = load float, ptr %21, align 8, !tbaa !24
  %53 = fadd float %52, %49
  store float %53, ptr %19, align 4, !tbaa !22
  %54 = load i32, ptr %14, align 4, !tbaa !14
  %55 = uitofp i32 %54 to float
  %56 = fmul float %53, %55
  store float %56, ptr %22, align 4, !tbaa !25
  %57 = call float @llvm.round.f32(float %56)
  %58 = fptosi float %57 to i32
  store i32 %58, ptr %13, align 8, !tbaa !13
  %59 = add i32 %.0.ph, 1
  br label %.outer, !llvm.loop !20

60:                                               ; preds = %25
  %61 = load float, ptr %19, align 4, !tbaa !22
  %62 = fadd float %61, -1.000000e+00
  store float %62, ptr %19, align 4, !tbaa !22
  %63 = uitofp i32 %27 to float
  %64 = load float, ptr %22, align 4, !tbaa !25
  %65 = fsub float %64, %63
  store float %65, ptr %22, align 4, !tbaa !25
  %66 = sub i32 %26, %27
  store i32 %66, ptr %13, align 8, !tbaa !13
  store i32 %.0.ph, ptr %3, align 4, !tbaa !26
  call void @llvm.lifetime.end.p0(i64 4, ptr nonnull %6) #3
  call void @llvm.lifetime.end.p0(i64 4, ptr nonnull %5) #3
  ret i32 0
}

; Function Attrs: nounwind uwtable
declare dso_local i32 @symsync_rrrf_advance_internal_loop(ptr noundef, float noundef, float noundef) local_unnamed_addr #2

attributes #0 = { mustprogress nocallback nofree nosync nounwind willreturn memory(argmem: readwrite) }
attributes #1 = { mustprogress nocallback nofree nosync nounwind speculatable willreturn memory(none) }
attributes #2 = { 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 #3 = { 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, !11, i64 96}
!6 = !{!"symsync_rrrf_s", !7, i64 0, !7, i64 4, !7, i64 8, !7, i64 12, !7, i64 16, !10, i64 20, !10, i64 24, !10, i64 28, !10, i64 32, !10, i64 36, !7, i64 40, !10, i64 44, !10, i64 48, !8, i64 52, !8, i64 64, !11, i64 80, !10, i64 88, !7, i64 92, !11, i64 96, !11, i64 104}
!7 = !{!"int", !8, i64 0}
!8 = !{!"omnipotent char", !9, i64 0}
!9 = !{!"Simple C/C++ TBAA"}
!10 = !{!"float", !8, i64 0}
!11 = !{!"any pointer", !8, i64 0}
!12 = !{!6, !11, i64 104}
!13 = !{!6, !7, i64 40}
!14 = !{!6, !7, i64 92}
!15 = !{!10, !10, i64 0}
!16 = !{!6, !7, i64 4}
!17 = !{!6, !7, i64 12}
!18 = !{!6, !7, i64 8}
!19 = !{!6, !7, i64 16}
!20 = distinct !{!20, !21}
!21 = !{!"llvm.loop.mustprogress"}
!22 = !{!6, !10, i64 28}
!23 = !{!6, !10, i64 32}
!24 = !{!6, !10, i64 24}
!25 = !{!6, !10, i64 36}
!26 = !{!7, !7, i64 0}


; Effective O3 passes: CorrelatedValuePropagationPass,EarlyCSEPass,GVNPass,GlobalOptPass,InferFunctionAttrsPass,InstCombinePass,InstSimplifyPass,LCSSAPass,LICMPass,LoopInstSimplifyPass,LoopSimplifyPass,LoopUnrollPass,PostOrderFunctionAttrsPass,ReassociatePass,SROAPass,SimplifyCFGPass,TailCallElimPass