; LLVM IR from zhenrong-wang/co2 :: co2_property_calc (eta0)

; 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"

@tab1 = external dso_local constant [5 x double], 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 nosync nounwind speculatable willreturn memory(none)
declare double @llvm.fmuladd.f64(double, double, double) #1

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

; Function Attrs: nounwind uwtable
define dso_local double @eta0(double noundef %0) #3 {
  %2 = alloca double, align 8
  %3 = alloca double, align 8
  %4 = alloca i32, align 4
  store double %0, ptr %2, align 8, !tbaa !5
  call void @llvm.lifetime.start.p0(i64 8, ptr %3) #4
  store double 0.000000e+00, ptr %3, align 8, !tbaa !5
  call void @llvm.lifetime.start.p0(i64 4, ptr %4) #4
  store i32 0, ptr %4, align 4, !tbaa !9
  br label %5

5:                                                ; preds = %21, %1
  %6 = load i32, ptr %4, align 4, !tbaa !9
  %7 = icmp slt i32 %6, 5
  br i1 %7, label %8, label %24

8:                                                ; preds = %5
  %9 = load i32, ptr %4, align 4, !tbaa !9
  %10 = sext i32 %9 to i64
  %11 = getelementptr inbounds [5 x double], ptr @tab1, i64 0, i64 %10
  %12 = load double, ptr %11, align 8, !tbaa !5
  %13 = load double, ptr %2, align 8, !tbaa !5
  %14 = fdiv double %13, 2.511960e+02
  %15 = call double @log(double noundef %14) #4
  %16 = load i32, ptr %4, align 4, !tbaa !9
  %17 = sitofp i32 %16 to double
  %18 = call double @pow(double noundef %15, double noundef %17) #4
  %19 = load double, ptr %3, align 8, !tbaa !5
  %20 = call double @llvm.fmuladd.f64(double %12, double %18, double %19)
  store double %20, ptr %3, align 8, !tbaa !5
  br label %21

21:                                               ; preds = %8
  %22 = load i32, ptr %4, align 4, !tbaa !9
  %23 = add nsw i32 %22, 1
  store i32 %23, ptr %4, align 4, !tbaa !9
  br label %5, !llvm.loop !11

24:                                               ; preds = %5
  %25 = load double, ptr %2, align 8, !tbaa !5
  %26 = call double @sqrt(double noundef %25) #4
  %27 = fmul double 1.006970e+00, %26
  %28 = load double, ptr %3, align 8, !tbaa !5
  %29 = call double @exp(double noundef %28) #4
  %30 = fdiv double %27, %29
  call void @llvm.lifetime.end.p0(i64 4, ptr %4) #4
  call void @llvm.lifetime.end.p0(i64 8, ptr %3) #4
  ret double %30
}

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

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

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

attributes #0 = { nocallback nofree nosync nounwind willreturn memory(argmem: readwrite) }
attributes #1 = { nocallback nofree nosync nounwind speculatable willreturn memory(none) }
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 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 #4 = { 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/C++ TBAA"}
!9 = !{!10, !10, i64 0}
!10 = !{!"int", !7, i64 0}
!11 = distinct !{!11, !12}
!12 = !{!"llvm.loop.mustprogress"}


; 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"

@tab1 = external dso_local local_unnamed_addr constant [5 x double], align 16

; Function Attrs: mustprogress nocallback nofree nosync nounwind speculatable willreturn memory(none)
declare double @llvm.fmuladd.f64(double, double, double) #0

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

; Function Attrs: mustprogress nofree nounwind willreturn memory(write) uwtable
define dso_local double @eta0(double noundef %0) local_unnamed_addr #2 {
  %2 = fdiv double %0, 2.511960e+02
  %3 = load double, ptr @tab1, align 16, !tbaa !5
  %4 = tail call double @log(double noundef %2) #3
  %5 = fadd double %3, 0.000000e+00
  %6 = load double, ptr getelementptr inbounds (i8, ptr @tab1, i64 8), align 8, !tbaa !5
  %7 = tail call double @log(double noundef %2) #3
  %8 = tail call double @llvm.fmuladd.f64(double %6, double %7, double %5)
  %9 = load double, ptr getelementptr inbounds (i8, ptr @tab1, i64 16), align 16, !tbaa !5
  %10 = tail call double @log(double noundef %2) #3
  %square = fmul double %10, %10
  %11 = tail call double @llvm.fmuladd.f64(double %9, double %square, double %8)
  %12 = load double, ptr getelementptr inbounds (i8, ptr @tab1, i64 24), align 8, !tbaa !5
  %13 = tail call double @log(double noundef %2) #3
  %14 = tail call double @pow(double noundef %13, double noundef 3.000000e+00) #3
  %15 = tail call double @llvm.fmuladd.f64(double %12, double %14, double %11)
  %16 = load double, ptr getelementptr inbounds (i8, ptr @tab1, i64 32), align 16, !tbaa !5
  %17 = tail call double @log(double noundef %2) #3
  %18 = tail call double @pow(double noundef %17, double noundef 4.000000e+00) #3
  %19 = tail call double @llvm.fmuladd.f64(double %16, double %18, double %15)
  %20 = tail call double @sqrt(double noundef %0) #3
  %21 = fmul double %20, 1.006970e+00
  %22 = tail call double @exp(double noundef %19) #3
  %23 = fdiv double %21, %22
  ret double %23
}

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

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

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

attributes #0 = { mustprogress nocallback nofree nosync nounwind speculatable willreturn memory(none) }
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 = { 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 #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/C++ TBAA"}


; Effective O3 passes: GVNPass,GlobalOptPass,IndVarSimplifyPass,InferAlignmentPass,InferFunctionAttrsPass,InstCombinePass,LCSSAPass,LICMPass,LoopRotatePass,PostOrderFunctionAttrsPass,SROAPass,SimplifyCFGPass,TailCallElimPass