; LLVM IR from niuyishuai/PDCABB :: LAPACK_BLAS/LAPACK/VARIANTS/qr/LL (sceil)

; 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 double @sceil_(ptr noundef %0) #0 {
  %2 = alloca ptr, align 8
  %3 = alloca float, align 4
  store ptr %0, ptr %2, align 8, !tbaa !5
  call void @llvm.lifetime.start.p0(i64 4, ptr %3) #2
  %4 = load ptr, ptr %2, align 8, !tbaa !5
  %5 = load float, ptr %4, align 4, !tbaa !9
  %6 = load ptr, ptr %2, align 8, !tbaa !5
  %7 = load float, ptr %6, align 4, !tbaa !9
  %8 = fptosi float %7 to i64
  %9 = sitofp i64 %8 to float
  %10 = fsub float %5, %9
  %11 = fcmp oeq float %10, 0.000000e+00
  br i1 %11, label %12, label %15

12:                                               ; preds = %1
  %13 = load ptr, ptr %2, align 8, !tbaa !5
  %14 = load float, ptr %13, align 4, !tbaa !9
  store float %14, ptr %3, align 4, !tbaa !9
  br label %31

15:                                               ; preds = %1
  %16 = load ptr, ptr %2, align 8, !tbaa !5
  %17 = load float, ptr %16, align 4, !tbaa !9
  %18 = fcmp ogt float %17, 0.000000e+00
  br i1 %18, label %19, label %25

19:                                               ; preds = %15
  %20 = load ptr, ptr %2, align 8, !tbaa !5
  %21 = load float, ptr %20, align 4, !tbaa !9
  %22 = fptosi float %21 to i64
  %23 = add nsw i64 %22, 1
  %24 = sitofp i64 %23 to float
  store float %24, ptr %3, align 4, !tbaa !9
  br label %30

25:                                               ; preds = %15
  %26 = load ptr, ptr %2, align 8, !tbaa !5
  %27 = load float, ptr %26, align 4, !tbaa !9
  %28 = fptosi float %27 to i64
  %29 = sitofp i64 %28 to float
  store float %29, ptr %3, align 4, !tbaa !9
  br label %30

30:                                               ; preds = %25, %19
  br label %31

31:                                               ; preds = %30, %12
  %32 = load float, ptr %3, align 4, !tbaa !9
  %33 = fpext float %32 to double
  call void @llvm.lifetime.end.p0(i64 4, ptr %3) #2
  ret double %33
}

; Function Attrs: nocallback nofree nosync nounwind willreturn memory(argmem: readwrite)
declare void @llvm.lifetime.start.p0(i64 immarg, ptr nocapture) #1

; Function Attrs: nocallback nofree nosync nounwind willreturn memory(argmem: readwrite)
declare void @llvm.lifetime.end.p0(i64 immarg, ptr nocapture) #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 willreturn memory(argmem: readwrite) }
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}


; 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 double @sceil_(ptr nocapture noundef readonly %0) local_unnamed_addr #0 {
  %2 = load float, ptr %0, align 4, !tbaa !5
  %3 = fptosi float %2 to i64
  %4 = sitofp i64 %3 to float
  %5 = fcmp oeq float %2, %4
  br i1 %5, label %11, label %6

6:                                                ; preds = %1
  %7 = fcmp ogt float %2, 0.000000e+00
  br i1 %7, label %8, label %11

8:                                                ; preds = %6
  %9 = add nsw i64 %3, 1
  %10 = sitofp i64 %9 to float
  br label %11

11:                                               ; preds = %6, %1, %8
  %.0 = phi float [ %10, %8 ], [ %2, %1 ], [ %4, %6 ]
  %12 = fpext float %.0 to double
  ret double %12
}

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,InferFunctionAttrsPass,InstCombinePass,PostOrderFunctionAttrsPass,SROAPass,SimplifyCFGPass