; LLVM IR from QiaoLiuHit/LSOTB-TIR :: vlfeat-0.9.19/vl (svm)

; 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.anon = type { i64 }

@vl_infinity_d = external hidden constant %union.anon, 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

; Function Attrs: nounwind uwtable
define dso_local double @vl_svm_l1_dca_update(double noundef %0, double noundef %1, double noundef %2, double noundef %3) #1 {
  %5 = alloca double, align 8
  %6 = alloca double, align 8
  %7 = alloca double, align 8
  %8 = alloca double, align 8
  %9 = alloca double, align 8
  %10 = alloca double, align 8
  store double %0, ptr %6, align 8, !tbaa !5
  store double %1, ptr %7, align 8, !tbaa !5
  store double %2, ptr %8, align 8, !tbaa !5
  store double %3, ptr %9, align 8, !tbaa !5
  %11 = load double, ptr %6, align 8, !tbaa !5
  %12 = call double @vl_abs_d(double noundef %11)
  %13 = fcmp ole double %12, 1.000000e+00
  br i1 %13, label %14, label %43

14:                                               ; preds = %4
  call void @llvm.lifetime.start.p0(i64 8, ptr %10) #3
  %15 = load double, ptr %9, align 8, !tbaa !5
  %16 = load double, ptr %7, align 8, !tbaa !5
  %17 = fsub double %15, %16
  %18 = load double, ptr %8, align 8, !tbaa !5
  %19 = fdiv double %17, %18
  %20 = load double, ptr %6, align 8, !tbaa !5
  %21 = fadd double %19, %20
  store double %21, ptr %10, align 8, !tbaa !5
  %22 = load double, ptr %10, align 8, !tbaa !5
  %23 = fcmp olt double 1.000000e+00, %22
  br i1 %23, label %24, label %25

24:                                               ; preds = %14
  br label %27

25:                                               ; preds = %14
  %26 = load double, ptr %10, align 8, !tbaa !5
  br label %27

27:                                               ; preds = %25, %24
  %28 = phi double [ 1.000000e+00, %24 ], [ %26, %25 ]
  %29 = fcmp ogt double -1.000000e+00, %28
  br i1 %29, label %30, label %31

30:                                               ; preds = %27
  br label %39

31:                                               ; preds = %27
  %32 = load double, ptr %10, align 8, !tbaa !5
  %33 = fcmp olt double 1.000000e+00, %32
  br i1 %33, label %34, label %35

34:                                               ; preds = %31
  br label %37

35:                                               ; preds = %31
  %36 = load double, ptr %10, align 8, !tbaa !5
  br label %37

37:                                               ; preds = %35, %34
  %38 = phi double [ 1.000000e+00, %34 ], [ %36, %35 ]
  br label %39

39:                                               ; preds = %37, %30
  %40 = phi double [ -1.000000e+00, %30 ], [ %38, %37 ]
  %41 = load double, ptr %6, align 8, !tbaa !5
  %42 = fsub double %40, %41
  store double %42, ptr %5, align 8
  call void @llvm.lifetime.end.p0(i64 8, ptr %10) #3
  br label %45

43:                                               ; preds = %4
  %44 = load double, ptr @vl_infinity_d, align 8, !tbaa !9
  store double %44, ptr %5, align 8
  br label %45

45:                                               ; preds = %43, %39
  %46 = load double, ptr %5, align 8
  ret double %46
}

; Function Attrs: inlinehint nounwind uwtable
declare hidden double @vl_abs_d(double noundef) #2

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 = { inlinehint 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 = !{!"double", !7, i64 0}
!7 = !{!"omnipotent char", !8, i64 0}
!8 = !{!"Simple C/C++ TBAA"}
!9 = !{!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"

%union.anon = type { i64 }

@vl_infinity_d = external hidden local_unnamed_addr constant %union.anon, align 8

; Function Attrs: nounwind uwtable
define dso_local double @vl_svm_l1_dca_update(double noundef %0, double noundef %1, double noundef %2, double noundef %3) local_unnamed_addr #0 {
  %5 = tail call double @vl_abs_d(double noundef %0)
  %6 = fcmp ugt double %5, 1.000000e+00
  br i1 %6, label %16, label %7

7:                                                ; preds = %4
  %8 = fsub double %3, %1
  %9 = fdiv double %8, %2
  %10 = fadd double %9, %0
  %11 = fcmp ogt double %10, 1.000000e+00
  %12 = select i1 %11, double 1.000000e+00, double %10
  %13 = fcmp olt double %12, -1.000000e+00
  %14 = select i1 %13, double -1.000000e+00, double %12
  %15 = fsub double %14, %0
  br label %18

16:                                               ; preds = %4
  %17 = load double, ptr @vl_infinity_d, align 8, !tbaa !5
  br label %18

18:                                               ; preds = %16, %7
  %.0 = phi double [ %15, %7 ], [ %17, %16 ]
  ret double %.0
}

; Function Attrs: inlinehint nounwind uwtable
declare hidden double @vl_abs_d(double noundef) local_unnamed_addr #1

attributes #0 = { 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 #1 = { inlinehint 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" }

!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: EarlyCSEPass,GlobalOptPass,InferFunctionAttrsPass,InstCombinePass,ReassociatePass,SROAPass,SimplifyCFGPass,TailCallElimPass