; LLVM IR from parallella/pal :: tests/dsp (check_p_xcorr_f32)

; 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: nounwind uwtable
define dso_local i32 @check_data(float noundef %0, float noundef %1, float noundef %2) #0 {
  %4 = alloca i32, align 4
  %5 = alloca float, align 4
  %6 = alloca float, align 4
  %7 = alloca float, align 4
  %8 = alloca float, align 4
  %9 = alloca i32, align 4
  %10 = alloca float, align 4
  store float %0, ptr %5, align 4, !tbaa !5
  store float %1, ptr %6, align 4, !tbaa !5
  store float %2, ptr %7, align 4, !tbaa !5
  call void @llvm.lifetime.start.p0(i64 4, ptr %8) #3
  %11 = load float, ptr %5, align 4, !tbaa !5
  %12 = load float, ptr %6, align 4, !tbaa !5
  %13 = fsub float %11, %12
  %14 = fpext float %13 to double
  %15 = call double @llvm.fabs.f64(double %14)
  %16 = fptrunc double %15 to float
  store float %16, ptr %8, align 4, !tbaa !5
  %17 = load float, ptr %8, align 4, !tbaa !5
  %18 = fcmp oeq float %17, 0.000000e+00
  br i1 %18, label %19, label %20

19:                                               ; preds = %3
  store i32 1, ptr %4, align 4
  store i32 1, ptr %9, align 4
  br label %42

20:                                               ; preds = %3
  %21 = load float, ptr %6, align 4, !tbaa !5
  %22 = fcmp une float %21, 0.000000e+00
  br i1 %22, label %23, label %36

23:                                               ; preds = %20
  call void @llvm.lifetime.start.p0(i64 4, ptr %10) #3
  %24 = load float, ptr %8, align 4, !tbaa !5
  %25 = load float, ptr %6, align 4, !tbaa !5
  %26 = fdiv float %24, %25
  %27 = fpext float %26 to double
  %28 = call double @llvm.fabs.f64(double %27)
  %29 = fptrunc double %28 to float
  store float %29, ptr %10, align 4, !tbaa !5
  %30 = load float, ptr %10, align 4, !tbaa !5
  %31 = load float, ptr %7, align 4, !tbaa !5
  %32 = fcmp ogt float %30, %31
  br i1 %32, label %33, label %34

33:                                               ; preds = %23
  store i32 0, ptr %4, align 4
  store i32 1, ptr %9, align 4
  br label %35

34:                                               ; preds = %23
  store i32 1, ptr %4, align 4
  store i32 1, ptr %9, align 4
  br label %35

35:                                               ; preds = %34, %33
  call void @llvm.lifetime.end.p0(i64 4, ptr %10) #3
  br label %42

36:                                               ; preds = %20
  %37 = load float, ptr %8, align 4, !tbaa !5
  %38 = load float, ptr %7, align 4, !tbaa !5
  %39 = fcmp ogt float %37, %38
  br i1 %39, label %40, label %41

40:                                               ; preds = %36
  store i32 0, ptr %4, align 4
  store i32 1, ptr %9, align 4
  br label %42

41:                                               ; preds = %36
  store i32 1, ptr %4, align 4
  store i32 1, ptr %9, align 4
  br label %42

42:                                               ; preds = %41, %40, %35, %19
  call void @llvm.lifetime.end.p0(i64 4, ptr %8) #3
  %43 = load i32, ptr %4, align 4
  ret i32 %43
}

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

; Function Attrs: nocallback nofree nosync nounwind speculatable willreturn memory(none)
declare double @llvm.fabs.f64(double) #2

; Function Attrs: nocallback nofree nosync nounwind willreturn memory(argmem: readwrite)
declare void @llvm.lifetime.end.p0(i64 immarg, ptr nocapture) #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 = { nocallback nofree nosync nounwind willreturn memory(argmem: readwrite) }
attributes #2 = { nocallback nofree nosync nounwind speculatable willreturn memory(none) }
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 = !{!"float", !7, i64 0}
!7 = !{!"omnipotent char", !8, i64 0}
!8 = !{!"Simple C/C++ TBAA"}


; 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(none) uwtable
define dso_local range(i32 0, 2) i32 @check_data(float noundef %0, float noundef %1, float noundef %2) local_unnamed_addr #0 {
  %4 = fsub float %0, %1
  %5 = tail call float @llvm.fabs.f32(float %4)
  %6 = fcmp oeq float %4, 0.000000e+00
  br i1 %6, label %15, label %7

7:                                                ; preds = %3
  %8 = fcmp une float %1, 0.000000e+00
  br i1 %8, label %9, label %13

9:                                                ; preds = %7
  %10 = fdiv float %5, %1
  %11 = tail call float @llvm.fabs.f32(float %10)
  %12 = fcmp ule float %11, %2
  br label %15

13:                                               ; preds = %7
  %14 = fcmp ule float %5, %2
  br label %15

15:                                               ; preds = %13, %3, %9
  %.1.shrunk = phi i1 [ %12, %9 ], [ true, %3 ], [ %14, %13 ]
  %.1 = zext i1 %.1.shrunk to i32
  ret i32 %.1
}

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

attributes #0 = { mustprogress nofree norecurse nosync nounwind willreturn memory(none) 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 speculatable willreturn memory(none) }

!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)"}


; Effective O3 passes: GlobalOptPass,IPSCCPPass,InferFunctionAttrsPass,InstCombinePass,PostOrderFunctionAttrsPass,SROAPass,SimplifyCFGPass,TailCallElimPass