; LLVM IR from NOAA-PMEL/Ferret :: fer/ccr (replaceable_bad_flags)

; 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: nounwind uwtable
define dso_local i32 @replaceable_bad_flags_(ptr noundef %0, ptr noundef %1) #0 {
  %3 = alloca i32, align 4
  %4 = alloca ptr, align 8
  %5 = alloca ptr, align 8
  store ptr %0, ptr %4, align 8, !tbaa !5
  store ptr %1, ptr %5, align 8, !tbaa !5
  %6 = load ptr, ptr %4, align 8, !tbaa !5
  %7 = load float, ptr %6, align 4, !tbaa !9
  %8 = call i1 @llvm.is.fpclass.f32(float %7, i32 3)
  br i1 %8, label %13, label %9

9:                                                ; preds = %2
  %10 = load ptr, ptr %5, align 8, !tbaa !5
  %11 = load float, ptr %10, align 4, !tbaa !9
  %12 = call i1 @llvm.is.fpclass.f32(float %11, i32 3)
  br i1 %12, label %13, label %14

13:                                               ; preds = %9, %2
  store i32 1, ptr %3, align 4
  br label %22

14:                                               ; preds = %9
  %15 = load ptr, ptr %4, align 8, !tbaa !5
  %16 = load float, ptr %15, align 4, !tbaa !9
  %17 = load ptr, ptr %5, align 8, !tbaa !5
  %18 = load float, ptr %17, align 4, !tbaa !9
  %19 = fcmp une float %16, %18
  br i1 %19, label %20, label %21

20:                                               ; preds = %14
  store i32 1, ptr %3, align 4
  br label %22

21:                                               ; preds = %14
  store i32 0, ptr %3, align 4
  br label %22

22:                                               ; preds = %21, %20, %13
  %23 = load i32, ptr %3, align 4
  ret i32 %23
}

; Function Attrs: nocallback nofree nosync nounwind speculatable willreturn memory(none)
declare i1 @llvm.is.fpclass.f32(float, i32 immarg) #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 = { nocallback nofree nosync nounwind speculatable willreturn memory(none) }

!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}


; 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 norecurse nosync nounwind willreturn memory(argmem: read) uwtable
define dso_local range(i32 0, 2) i32 @replaceable_bad_flags_(ptr nocapture noundef readonly %0, ptr nocapture noundef readonly %1) local_unnamed_addr #0 {
  %3 = load float, ptr %0, align 4, !tbaa !5
  %4 = fcmp uno float %3, 0.000000e+00
  br i1 %4, label %10, label %5

5:                                                ; preds = %2
  %6 = load float, ptr %1, align 4, !tbaa !5
  %7 = fcmp uno float %6, 0.000000e+00
  br i1 %7, label %10, label %8

8:                                                ; preds = %5
  %9 = fcmp une float %3, %6
  %. = zext i1 %9 to i32
  br label %10

10:                                               ; preds = %8, %2, %5
  %.0 = phi i32 [ 1, %5 ], [ 1, %2 ], [ %., %8 ]
  ret i32 %.0
}

attributes #0 = { 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 = !{!"float", !7, i64 0}
!7 = !{!"omnipotent char", !8, i64 0}
!8 = !{!"Simple C/C++ TBAA"}


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