; LLVM IR from yinqiwen/ardb :: src/common/util/string_helper.ll (ZN4ardb11str_tofloatEPKcRf)

; 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 noundef zeroext i1 @_ZN4ardb11str_tofloatEPKcRf(ptr noundef %0, ptr noundef nonnull align 4 dereferenceable(4) %1) #1 {
  %3 = alloca i1, align 1
  %4 = alloca ptr, align 8
  %5 = alloca ptr, align 8
  %6 = alloca ptr, align 8
  %7 = alloca float, align 4
  %8 = alloca i32, align 4
  store ptr %0, ptr %4, align 8, !tbaa !5
  store ptr %1, ptr %5, align 8, !tbaa !5
  br label %9

9:                                                ; preds = %2
  %10 = load ptr, ptr %4, align 8, !tbaa !5
  %11 = icmp eq ptr null, %10
  br i1 %11, label %12, label %13

12:                                               ; preds = %9
  store i1 false, ptr %3, align 1
  br label %29

13:                                               ; preds = %9
  br label %14

14:                                               ; preds = %13
  call void @llvm.lifetime.start.p0(i64 8, ptr %6) #3
  store ptr null, ptr %6, align 8, !tbaa !5
  call void @llvm.lifetime.start.p0(i64 4, ptr %7) #3
  %15 = load ptr, ptr %4, align 8, !tbaa !5
  %16 = call float @strtof(ptr noundef %15, ptr noundef %6) #3
  store float %16, ptr %7, align 4, !tbaa !9
  %17 = load ptr, ptr %6, align 8, !tbaa !5
  %18 = icmp eq ptr null, %17
  br i1 %18, label %24, label %19

19:                                               ; preds = %14
  %20 = load ptr, ptr %6, align 8, !tbaa !5
  %21 = load i8, ptr %20, align 1, !tbaa !11
  %22 = sext i8 %21 to i32
  %23 = icmp ne i32 0, %22
  br i1 %23, label %24, label %25

24:                                               ; preds = %19, %14
  store i1 false, ptr %3, align 1
  store i32 1, ptr %8, align 4
  br label %28

25:                                               ; preds = %19
  %26 = load float, ptr %7, align 4, !tbaa !9
  %27 = load ptr, ptr %5, align 8, !tbaa !5
  store float %26, ptr %27, align 4, !tbaa !9
  store i1 true, ptr %3, align 1
  store i32 1, ptr %8, align 4
  br label %28

28:                                               ; preds = %25, %24
  call void @llvm.lifetime.end.p0(i64 4, ptr %7) #3
  call void @llvm.lifetime.end.p0(i64 8, ptr %6) #3
  br label %29

29:                                               ; preds = %28, %12
  %30 = load i1, ptr %3, align 1
  ret i1 %30
}

; Function Attrs: nounwind
declare float @strtof(ptr noundef, ptr 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 = !{!"any pointer", !7, i64 0}
!7 = !{!"omnipotent char", !8, i64 0}
!8 = !{!"Simple C++ TBAA"}
!9 = !{!10, !10, i64 0}
!10 = !{!"float", !7, i64 0}
!11 = !{!7, !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 nocallback nofree nosync nounwind willreturn memory(argmem: readwrite)
declare void @llvm.lifetime.start.p0(i64 immarg, ptr nocapture) #0

; Function Attrs: mustprogress nocallback nofree nosync nounwind willreturn memory(argmem: readwrite)
declare void @llvm.lifetime.end.p0(i64 immarg, ptr nocapture) #0

; Function Attrs: mustprogress nofree nounwind willreturn uwtable
define dso_local noundef zeroext i1 @_ZN4ardb11str_tofloatEPKcRf(ptr noundef %0, ptr nocapture noundef nonnull writeonly align 4 dereferenceable(4) %1) local_unnamed_addr #1 {
  %3 = alloca ptr, align 8
  %4 = icmp eq ptr %0, null
  br i1 %4, label %13, label %5

5:                                                ; preds = %2
  call void @llvm.lifetime.start.p0(i64 8, ptr nonnull %3) #3
  store ptr null, ptr %3, align 8, !tbaa !5
  %6 = call float @strtof(ptr noundef nonnull %0, ptr noundef nonnull %3) #3
  %7 = load ptr, ptr %3, align 8, !tbaa !5
  %8 = icmp eq ptr %7, null
  br i1 %8, label %12, label %9

9:                                                ; preds = %5
  %10 = load i8, ptr %7, align 1, !tbaa !9
  %.not = icmp eq i8 %10, 0
  br i1 %.not, label %11, label %12

11:                                               ; preds = %9
  store float %6, ptr %1, align 4, !tbaa !10
  br label %12

12:                                               ; preds = %5, %9, %11
  %.0 = phi i1 [ true, %11 ], [ false, %9 ], [ false, %5 ]
  call void @llvm.lifetime.end.p0(i64 8, ptr nonnull %3) #3
  br label %13

13:                                               ; preds = %2, %12
  %.1 = phi i1 [ %.0, %12 ], [ false, %2 ]
  ret i1 %.1
}

; Function Attrs: mustprogress nofree nounwind willreturn
declare float @strtof(ptr noundef readonly, ptr nocapture noundef) local_unnamed_addr #2

attributes #0 = { mustprogress nocallback nofree nosync nounwind willreturn memory(argmem: readwrite) }
attributes #1 = { mustprogress nofree nounwind willreturn 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 = { mustprogress nofree nounwind willreturn "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 = !{!"any pointer", !7, i64 0}
!7 = !{!"omnipotent char", !8, i64 0}
!8 = !{!"Simple C++ TBAA"}
!9 = !{!7, !7, i64 0}
!10 = !{!11, !11, i64 0}
!11 = !{!"float", !7, i64 0}


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