; LLVM IR from jgaeddert/liquid-dsp :: src/agc/src (agc_crcf)

; 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"

%struct.agc_crcf_s = type { float, float, float, float, float, i32, i32, float, i32, i32 }

; Function Attrs: nounwind uwtable
define dso_local i32 @agc_crcf_set_rssi(ptr noundef %0, float noundef %1) #0 {
  %3 = alloca ptr, align 8
  %4 = alloca float, align 4
  store ptr %0, ptr %3, align 8, !tbaa !5
  store float %1, ptr %4, align 4, !tbaa !9
  %5 = load float, ptr %4, align 4, !tbaa !9
  %6 = fneg float %5
  %7 = fdiv float %6, 2.000000e+01
  %8 = call float @powf(float noundef 1.000000e+01, float noundef %7) #2
  %9 = load ptr, ptr %3, align 8, !tbaa !5
  %10 = getelementptr inbounds %struct.agc_crcf_s, ptr %9, i32 0, i32 0
  store float %8, ptr %10, align 4, !tbaa !11
  %11 = load ptr, ptr %3, align 8, !tbaa !5
  %12 = getelementptr inbounds %struct.agc_crcf_s, ptr %11, i32 0, i32 0
  %13 = load float, ptr %12, align 4, !tbaa !11
  %14 = fcmp olt float %13, 0x3C9CD2B2A0000000
  br i1 %14, label %15, label %16

15:                                               ; preds = %2
  br label %20

16:                                               ; preds = %2
  %17 = load ptr, ptr %3, align 8, !tbaa !5
  %18 = getelementptr inbounds %struct.agc_crcf_s, ptr %17, i32 0, i32 0
  %19 = load float, ptr %18, align 4, !tbaa !11
  br label %20

20:                                               ; preds = %16, %15
  %21 = phi float [ 0x3C9CD2B2A0000000, %15 ], [ %19, %16 ]
  %22 = load ptr, ptr %3, align 8, !tbaa !5
  %23 = getelementptr inbounds %struct.agc_crcf_s, ptr %22, i32 0, i32 0
  store float %21, ptr %23, align 4, !tbaa !11
  %24 = load ptr, ptr %3, align 8, !tbaa !5
  %25 = getelementptr inbounds %struct.agc_crcf_s, ptr %24, i32 0, i32 4
  store float 1.000000e+00, ptr %25, align 4, !tbaa !14
  ret i32 0
}

; Function Attrs: nounwind
declare float @powf(float noundef, float noundef) #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 = { 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 #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)"}
!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 = !{!"float", !7, i64 0}
!11 = !{!12, !10, i64 0}
!12 = !{!"agc_crcf_s", !10, i64 0, !10, i64 4, !10, i64 8, !10, i64 12, !10, i64 16, !13, i64 20, !13, i64 24, !10, i64 28, !13, i64 32, !13, i64 36}
!13 = !{!"int", !7, i64 0}
!14 = !{!12, !10, i64 16}


; 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 noundef i32 @agc_crcf_set_rssi(ptr nocapture noundef writeonly %0, float noundef %1) local_unnamed_addr #0 {
  %3 = fdiv float %1, -2.000000e+01
  %4 = tail call float @powf(float noundef 1.000000e+01, float noundef %3) #2
  %5 = fcmp olt float %4, 0x3C9CD2B2A0000000
  %6 = select i1 %5, float 0x3C9CD2B2A0000000, float %4
  store float %6, ptr %0, align 4, !tbaa !5
  %7 = getelementptr inbounds i8, ptr %0, i64 16
  store float 1.000000e+00, ptr %7, align 4, !tbaa !11
  ret i32 0
}

; Function Attrs: mustprogress nofree nounwind willreturn memory(write)
declare float @powf(float noundef, float 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)"}
!5 = !{!6, !7, i64 0}
!6 = !{!"agc_crcf_s", !7, i64 0, !7, i64 4, !7, i64 8, !7, i64 12, !7, i64 16, !10, i64 20, !10, i64 24, !7, i64 28, !10, i64 32, !10, i64 36}
!7 = !{!"float", !8, i64 0}
!8 = !{!"omnipotent char", !9, i64 0}
!9 = !{!"Simple C/C++ TBAA"}
!10 = !{!"int", !8, i64 0}
!11 = !{!6, !7, i64 16}


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