; LLVM IR from pixpark/gpupixel :: third_party/libyuv/util (psnr)

; 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: 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: mustprogress nounwind uwtable
define dso_local double @ComputePSNR(double noundef %0, double noundef %1) #1 {
  %3 = alloca double, align 8
  %4 = alloca double, align 8
  %5 = alloca double, align 8
  store double %0, ptr %3, align 8, !tbaa !5
  store double %1, ptr %4, align 8, !tbaa !5
  call void @llvm.lifetime.start.p0(i64 8, ptr %5) #3
  %6 = load double, ptr %4, align 8, !tbaa !5
  %7 = fmul double 6.502500e+04, %6
  %8 = call double @pow(double noundef 1.000000e+01, double noundef 1.280000e+01) #3
  %9 = fdiv double %7, %8
  store double %9, ptr %5, align 8, !tbaa !5
  %10 = load double, ptr %3, align 8, !tbaa !5
  %11 = load double, ptr %5, align 8, !tbaa !5
  %12 = fcmp ole double %10, %11
  br i1 %12, label %13, label %15

13:                                               ; preds = %2
  %14 = load double, ptr %5, align 8, !tbaa !5
  store double %14, ptr %3, align 8, !tbaa !5
  br label %15

15:                                               ; preds = %13, %2
  %16 = load double, ptr %4, align 8, !tbaa !5
  %17 = fmul double 6.502500e+04, %16
  %18 = load double, ptr %3, align 8, !tbaa !5
  %19 = fdiv double %17, %18
  %20 = call double @log10(double noundef %19) #3
  %21 = fmul double 1.000000e+01, %20
  call void @llvm.lifetime.end.p0(i64 8, ptr %5) #3
  ret double %21
}

; Function Attrs: nounwind
declare double @pow(double noundef, double noundef) #2

; Function Attrs: nounwind
declare double @log10(double noundef) #2

attributes #0 = { nocallback nofree nosync nounwind willreturn memory(argmem: readwrite) }
attributes #1 = { 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 #2 = { nounwind "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 = !{!"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 nounwind willreturn memory(write) uwtable
define dso_local double @ComputePSNR(double noundef %0, double noundef %1) local_unnamed_addr #0 {
  %3 = fmul double %1, 6.502500e+04
  %4 = fdiv double %3, 0x4296F43F891307C5
  %.inv = fcmp oge double %4, %0
  %.0 = select i1 %.inv, double %4, double %0
  %5 = fdiv double %3, %.0
  %6 = tail call double @log10(double noundef %5) #2
  %7 = fmul double %6, 1.000000e+01
  ret double %7
}

; Function Attrs: mustprogress nofree nounwind willreturn memory(write)
declare double @log10(double noundef) local_unnamed_addr #1

attributes #0 = { mustprogress nofree nounwind willreturn memory(write) 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 nofree nounwind willreturn memory(write) "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 #2 = { 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)"}


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