; LLVM IR from facebook/redex :: libresource/Serialize.ll (ZN4arsc13complex_valueEj)

; 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"

@__const._ZN4arsc13complex_valueEj.RADIX_MULTS = external hidden unnamed_addr constant [4 x float], align 16

; 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 nounwind willreturn memory(argmem: readwrite)
declare void @llvm.memcpy.p0.p0.i64(ptr noalias nocapture writeonly, ptr noalias nocapture readonly, i64, i1 immarg) #1

; Function Attrs: mustprogress nounwind uwtable
define dso_local noundef float @_ZN4arsc13complex_valueEj(i32 noundef %0) #2 {
  %2 = alloca i32, align 4
  %3 = alloca float, align 4
  %4 = alloca [4 x float], align 16
  %5 = alloca float, align 4
  store i32 %0, ptr %2, align 4, !tbaa !5
  call void @llvm.lifetime.start.p0(i64 4, ptr %3) #3
  store float 3.906250e-03, ptr %3, align 4, !tbaa !9
  call void @llvm.lifetime.start.p0(i64 16, ptr %4) #3
  call void @llvm.memcpy.p0.p0.i64(ptr align 16 %4, ptr align 16 @__const._ZN4arsc13complex_valueEj.RADIX_MULTS, i64 16, i1 false)
  call void @llvm.lifetime.start.p0(i64 4, ptr %5) #3
  %6 = load i32, ptr %2, align 4, !tbaa !5
  %7 = and i32 %6, -256
  %8 = uitofp i32 %7 to float
  %9 = load i32, ptr %2, align 4, !tbaa !5
  %10 = lshr i32 %9, 4
  %11 = and i32 %10, 3
  %12 = zext i32 %11 to i64
  %13 = getelementptr inbounds [4 x float], ptr %4, i64 0, i64 %12
  %14 = load float, ptr %13, align 4, !tbaa !9
  %15 = fmul float %8, %14
  store float %15, ptr %5, align 4, !tbaa !9
  %16 = load float, ptr %5, align 4, !tbaa !9
  call void @llvm.lifetime.end.p0(i64 4, ptr %5) #3
  call void @llvm.lifetime.end.p0(i64 16, ptr %4) #3
  call void @llvm.lifetime.end.p0(i64 4, ptr %3) #3
  ret float %16
}

attributes #0 = { nocallback nofree nosync nounwind willreturn memory(argmem: readwrite) }
attributes #1 = { nocallback nofree nounwind willreturn memory(argmem: readwrite) }
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 = !{!"int", !7, i64 0}
!7 = !{!"omnipotent char", !8, i64 0}
!8 = !{!"Simple C++ TBAA"}
!9 = !{!10, !10, i64 0}
!10 = !{!"float", !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"

@__const._ZN4arsc13complex_valueEj.RADIX_MULTS = external hidden unnamed_addr constant [4 x float], align 16

; Function Attrs: mustprogress nofree norecurse nosync nounwind willreturn memory(none) uwtable
define dso_local noundef float @_ZN4arsc13complex_valueEj(i32 noundef %0) local_unnamed_addr #0 {
  %2 = and i32 %0, -256
  %3 = uitofp i32 %2 to float
  %4 = lshr i32 %0, 4
  %5 = and i32 %4, 3
  %6 = zext nneg i32 %5 to i64
  %7 = getelementptr inbounds [4 x float], ptr @__const._ZN4arsc13complex_valueEj.RADIX_MULTS, i64 0, i64 %6
  %8 = load float, ptr %7, align 4, !tbaa !5
  %9 = fmul float %8, %3
  ret float %9
}

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" }

!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++ TBAA"}


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