; LLVM IR from stan-dev/math :: lib/boost_1.84.0/libs/numeric/odeint/performance (c_lorenz)

; 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 void @lorenz(ptr noundef %0, ptr noalias noundef %1) #0 {
  %3 = alloca ptr, align 8
  %4 = alloca ptr, align 8
  store ptr %0, ptr %3, align 8, !tbaa !5
  store ptr %1, ptr %4, align 8, !tbaa !5
  %5 = load ptr, ptr %3, align 8, !tbaa !5
  %6 = getelementptr inbounds double, ptr %5, i64 1
  %7 = load double, ptr %6, align 8, !tbaa !9
  %8 = load ptr, ptr %3, align 8, !tbaa !5
  %9 = getelementptr inbounds double, ptr %8, i64 0
  %10 = load double, ptr %9, align 8, !tbaa !9
  %11 = fsub double %7, %10
  %12 = fmul double 1.000000e+01, %11
  %13 = load ptr, ptr %4, align 8, !tbaa !5
  %14 = getelementptr inbounds double, ptr %13, i64 0
  store double %12, ptr %14, align 8, !tbaa !9
  %15 = load ptr, ptr %3, align 8, !tbaa !5
  %16 = getelementptr inbounds double, ptr %15, i64 0
  %17 = load double, ptr %16, align 8, !tbaa !9
  %18 = load ptr, ptr %3, align 8, !tbaa !5
  %19 = getelementptr inbounds double, ptr %18, i64 1
  %20 = load double, ptr %19, align 8, !tbaa !9
  %21 = fneg double %20
  %22 = call double @llvm.fmuladd.f64(double 2.800000e+01, double %17, double %21)
  %23 = load ptr, ptr %3, align 8, !tbaa !5
  %24 = getelementptr inbounds double, ptr %23, i64 0
  %25 = load double, ptr %24, align 8, !tbaa !9
  %26 = load ptr, ptr %3, align 8, !tbaa !5
  %27 = getelementptr inbounds double, ptr %26, i64 2
  %28 = load double, ptr %27, align 8, !tbaa !9
  %29 = fneg double %25
  %30 = call double @llvm.fmuladd.f64(double %29, double %28, double %22)
  %31 = load ptr, ptr %4, align 8, !tbaa !5
  %32 = getelementptr inbounds double, ptr %31, i64 1
  store double %30, ptr %32, align 8, !tbaa !9
  %33 = load ptr, ptr %3, align 8, !tbaa !5
  %34 = getelementptr inbounds double, ptr %33, i64 0
  %35 = load double, ptr %34, align 8, !tbaa !9
  %36 = load ptr, ptr %3, align 8, !tbaa !5
  %37 = getelementptr inbounds double, ptr %36, i64 1
  %38 = load double, ptr %37, align 8, !tbaa !9
  %39 = load ptr, ptr %3, align 8, !tbaa !5
  %40 = getelementptr inbounds double, ptr %39, i64 2
  %41 = load double, ptr %40, align 8, !tbaa !9
  %42 = fmul double 0x4005555555555555, %41
  %43 = fneg double %42
  %44 = call double @llvm.fmuladd.f64(double %35, double %38, double %43)
  %45 = load ptr, ptr %4, align 8, !tbaa !5
  %46 = getelementptr inbounds double, ptr %45, i64 2
  store double %44, ptr %46, align 8, !tbaa !9
  ret void
}

; Function Attrs: nocallback nofree nosync nounwind speculatable willreturn memory(none)
declare double @llvm.fmuladd.f64(double, double, double) #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 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)"}
!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 = !{!"double", !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"

; Function Attrs: mustprogress nofree norecurse nosync nounwind willreturn memory(argmem: readwrite) uwtable
define dso_local void @lorenz(ptr nocapture noundef readonly %0, ptr noalias nocapture noundef writeonly %1) local_unnamed_addr #0 {
  %3 = getelementptr inbounds i8, ptr %0, i64 8
  %4 = load double, ptr %0, align 8, !tbaa !5
  %5 = fneg double %4
  %6 = getelementptr inbounds i8, ptr %1, i64 8
  %7 = load <2 x double>, ptr %3, align 8, !tbaa !5
  %8 = extractelement <2 x double> %7, i64 0
  %9 = fsub double %8, %4
  %10 = fmul double %9, 1.000000e+01
  store double %10, ptr %1, align 8, !tbaa !5
  %11 = fneg double %8
  %12 = tail call double @llvm.fmuladd.f64(double %4, double 2.800000e+01, double %11)
  %13 = extractelement <2 x double> %7, i64 1
  %14 = fmul double %13, 0xC005555555555555
  %15 = insertelement <2 x double> poison, double %4, i64 0
  %16 = insertelement <2 x double> %15, double %5, i64 1
  %17 = insertelement <2 x double> poison, double %14, i64 0
  %18 = insertelement <2 x double> %17, double %12, i64 1
  %19 = tail call <2 x double> @llvm.fmuladd.v2f64(<2 x double> %16, <2 x double> %7, <2 x double> %18)
  %20 = shufflevector <2 x double> %19, <2 x double> poison, <2 x i32> <i32 1, i32 0>
  store <2 x double> %20, ptr %6, align 8, !tbaa !5
  ret void
}

; Function Attrs: mustprogress nocallback nofree nosync nounwind speculatable willreturn memory(none)
declare double @llvm.fmuladd.f64(double, double, double) #1

; Function Attrs: nocallback nofree nosync nounwind speculatable willreturn memory(none)
declare <2 x double> @llvm.fmuladd.v2f64(<2 x double>, <2 x double>, <2 x double>) #2

attributes #0 = { mustprogress nofree norecurse nosync nounwind willreturn memory(argmem: readwrite) 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) }
attributes #2 = { 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)"}
!5 = !{!6, !6, i64 0}
!6 = !{!"double", !7, i64 0}
!7 = !{!"omnipotent char", !8, i64 0}
!8 = !{!"Simple C/C++ TBAA"}


; Effective O3 passes: EarlyCSEPass,GlobalOptPass,InferFunctionAttrsPass,InstCombinePass,PostOrderFunctionAttrsPass,SLPVectorizerPass,SROAPass,TailCallElimPass