; LLVM IR from bohanwang/libpgo :: src/core/perlinNoise/perlinNoise.ll (ZN3pgo11PerlinNoise11PerlinNoise10gradient3DEiddd)

; 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"

%"class.pgo::PerlinNoise::PerlinNoise" = type { [256 x i32], [4 x [2 x double]], [16 x [3 x double]], [32 x [4 x double]] }

; 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 double @llvm.fmuladd.f64(double, double, double) #1

; Function Attrs: mustprogress nounwind uwtable
define dso_local noundef double @_ZN3pgo11PerlinNoise11PerlinNoise10gradient3DEiddd(ptr noundef nonnull align 8 dereferenceable(2496) %0, i32 noundef %1, double noundef %2, double noundef %3, double noundef %4) #2 align 2 {
  %6 = alloca ptr, align 8
  %7 = alloca i32, align 4
  %8 = alloca double, align 8
  %9 = alloca double, align 8
  %10 = alloca double, align 8
  %11 = alloca i32, align 4
  store ptr %0, ptr %6, align 8, !tbaa !5
  store i32 %1, ptr %7, align 4, !tbaa !9
  store double %2, ptr %8, align 8, !tbaa !11
  store double %3, ptr %9, align 8, !tbaa !11
  store double %4, ptr %10, align 8, !tbaa !11
  %12 = load ptr, ptr %6, align 8
  call void @llvm.lifetime.start.p0(i64 4, ptr %11) #3
  %13 = load i32, ptr %7, align 4, !tbaa !9
  %14 = and i32 %13, 15
  store i32 %14, ptr %11, align 4, !tbaa !9
  %15 = getelementptr inbounds %"class.pgo::PerlinNoise::PerlinNoise", ptr %12, i32 0, i32 2
  %16 = load i32, ptr %11, align 4, !tbaa !9
  %17 = sext i32 %16 to i64
  %18 = getelementptr inbounds [16 x [3 x double]], ptr %15, i64 0, i64 %17
  %19 = getelementptr inbounds [3 x double], ptr %18, i64 0, i64 0
  %20 = load double, ptr %19, align 8, !tbaa !11
  %21 = load double, ptr %8, align 8, !tbaa !11
  %22 = getelementptr inbounds %"class.pgo::PerlinNoise::PerlinNoise", ptr %12, i32 0, i32 2
  %23 = load i32, ptr %11, align 4, !tbaa !9
  %24 = sext i32 %23 to i64
  %25 = getelementptr inbounds [16 x [3 x double]], ptr %22, i64 0, i64 %24
  %26 = getelementptr inbounds [3 x double], ptr %25, i64 0, i64 1
  %27 = load double, ptr %26, align 8, !tbaa !11
  %28 = load double, ptr %9, align 8, !tbaa !11
  %29 = fmul double %27, %28
  %30 = call double @llvm.fmuladd.f64(double %20, double %21, double %29)
  %31 = getelementptr inbounds %"class.pgo::PerlinNoise::PerlinNoise", ptr %12, i32 0, i32 2
  %32 = load i32, ptr %11, align 4, !tbaa !9
  %33 = sext i32 %32 to i64
  %34 = getelementptr inbounds [16 x [3 x double]], ptr %31, i64 0, i64 %33
  %35 = getelementptr inbounds [3 x double], ptr %34, i64 0, i64 2
  %36 = load double, ptr %35, align 8, !tbaa !11
  %37 = load double, ptr %10, align 8, !tbaa !11
  %38 = call double @llvm.fmuladd.f64(double %36, double %37, double %30)
  call void @llvm.lifetime.end.p0(i64 4, ptr %11) #3
  ret double %38
}

attributes #0 = { nocallback nofree nosync nounwind willreturn memory(argmem: readwrite) }
attributes #1 = { nocallback nofree nosync nounwind speculatable willreturn memory(none) }
attributes #2 = { 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 #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++ TBAA"}
!9 = !{!10, !10, i64 0}
!10 = !{!"int", !7, i64 0}
!11 = !{!12, !12, i64 0}
!12 = !{!"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 nocallback nofree nosync nounwind speculatable willreturn memory(none)
declare double @llvm.fmuladd.f64(double, double, double) #0

; Function Attrs: mustprogress nofree norecurse nosync nounwind willreturn memory(argmem: read) uwtable
define dso_local noundef double @_ZN3pgo11PerlinNoise11PerlinNoise10gradient3DEiddd(ptr nocapture noundef nonnull readonly align 8 dereferenceable(2496) %0, i32 noundef %1, double noundef %2, double noundef %3, double noundef %4) local_unnamed_addr #1 align 2 {
  %6 = and i32 %1, 15
  %7 = getelementptr inbounds i8, ptr %0, i64 1088
  %8 = zext nneg i32 %6 to i64
  %9 = getelementptr inbounds [16 x [3 x double]], ptr %7, i64 0, i64 %8
  %10 = load double, ptr %9, align 8, !tbaa !5
  %11 = getelementptr inbounds i8, ptr %9, i64 8
  %12 = load double, ptr %11, align 8, !tbaa !5
  %13 = fmul double %12, %3
  %14 = tail call double @llvm.fmuladd.f64(double %10, double %2, double %13)
  %15 = getelementptr inbounds i8, ptr %9, i64 16
  %16 = load double, ptr %15, align 8, !tbaa !5
  %17 = tail call double @llvm.fmuladd.f64(double %16, double %4, double %14)
  ret double %17
}

attributes #0 = { mustprogress nocallback nofree nosync nounwind speculatable willreturn memory(none) }
attributes #1 = { mustprogress nofree norecurse nosync nounwind willreturn memory(argmem: read) 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 = !{!"double", !7, i64 0}
!7 = !{!"omnipotent char", !8, i64 0}
!8 = !{!"Simple C++ TBAA"}


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