; LLVM IR from garethcmurphy/Interstellar-Jet-MHD-Simulation :: src/vanleer.ll (Z7vanleerdd)

; 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: mustprogress nounwind uwtable
define dso_local noundef double @_Z7vanleerdd(double noundef %0, double noundef %1) #0 {
  %3 = alloca double, align 8
  %4 = alloca double, align 8
  %5 = alloca double, align 8
  %6 = alloca double, align 8
  %7 = alloca i32, align 4
  store double %0, ptr %4, align 8, !tbaa !5
  store double %1, ptr %5, align 8, !tbaa !5
  call void @llvm.lifetime.start.p0(i64 8, ptr %6) #3
  store double 0.000000e+00, ptr %6, align 8, !tbaa !5
  %8 = load double, ptr %4, align 8, !tbaa !5
  %9 = load double, ptr %4, align 8, !tbaa !5
  %10 = load double, ptr %5, align 8, !tbaa !5
  %11 = load double, ptr %5, align 8, !tbaa !5
  %12 = fmul double %10, %11
  %13 = call double @llvm.fmuladd.f64(double %8, double %9, double %12)
  store double %13, ptr %6, align 8, !tbaa !5
  %14 = load double, ptr %6, align 8, !tbaa !5
  %15 = fcmp ogt double %14, 0.000000e+00
  br i1 %15, label %16, label %29

16:                                               ; preds = %2
  %17 = load double, ptr %4, align 8, !tbaa !5
  %18 = load double, ptr %4, align 8, !tbaa !5
  %19 = fmul double %17, %18
  %20 = load double, ptr %5, align 8, !tbaa !5
  %21 = load double, ptr %5, align 8, !tbaa !5
  %22 = load double, ptr %5, align 8, !tbaa !5
  %23 = fmul double %21, %22
  %24 = load double, ptr %4, align 8, !tbaa !5
  %25 = fmul double %23, %24
  %26 = call double @llvm.fmuladd.f64(double %19, double %20, double %25)
  %27 = load double, ptr %6, align 8, !tbaa !5
  %28 = fdiv double %26, %27
  store double %28, ptr %3, align 8
  store i32 1, ptr %7, align 4
  br label %30

29:                                               ; preds = %2
  store double 0.000000e+00, ptr %3, align 8
  store i32 1, ptr %7, align 4
  br label %30

30:                                               ; preds = %29, %16
  call void @llvm.lifetime.end.p0(i64 8, ptr %6) #3
  %31 = load double, ptr %3, align 8
  ret double %31
}

; 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.fmuladd.f64(double, double, 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 = { 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 #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 = !{!"double", !7, i64 0}
!7 = !{!"omnipotent char", !8, i64 0}
!8 = !{!"Simple 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 noundef double @_Z7vanleerdd(double noundef %0, double noundef %1) local_unnamed_addr #0 {
  %3 = fmul double %1, %1
  %4 = tail call double @llvm.fmuladd.f64(double %0, double %0, double %3)
  %5 = fcmp ogt double %4, 0.000000e+00
  br i1 %5, label %6, label %11

6:                                                ; preds = %2
  %7 = fmul double %0, %0
  %8 = fmul double %3, %0
  %9 = tail call double @llvm.fmuladd.f64(double %7, double %1, double %8)
  %10 = fdiv double %9, %4
  br label %11

11:                                               ; preds = %2, %6
  %.0 = phi double [ %10, %6 ], [ 0.000000e+00, %2 ]
  ret double %.0
}

; Function Attrs: mustprogress nocallback nofree nosync nounwind speculatable willreturn memory(none)
declare double @llvm.fmuladd.f64(double, double, double) #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 = { mustprogress 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: EarlyCSEPass,GlobalOptPass,InferFunctionAttrsPass,InstCombinePass,PostOrderFunctionAttrsPass,ReassociatePass,SROAPass,SimplifyCFGPass,TailCallElimPass