; LLVM IR from kkumatani/distant_speech_recognition :: btk20_src/common/mach_ind_io.ll (Z12write_stringP8_IO_FILEPKc)

; 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

declare i64 @fwrite(ptr noundef, i64 noundef, i64 noundef, ptr noundef) #1

; Function Attrs: mustprogress uwtable
declare dso_local noundef i32 @_Z12write_shortsP8_IO_FILEPsi(ptr noundef, ptr noundef, i32 noundef) #2

; Function Attrs: mustprogress uwtable
define dso_local noundef i32 @_Z12write_stringP8_IO_FILEPKc(ptr noundef %0, ptr noundef %1) #2 {
  %3 = alloca i32, align 4
  %4 = alloca ptr, align 8
  %5 = alloca ptr, align 8
  %6 = alloca i32, align 4
  %7 = alloca i16, align 2
  %8 = alloca i32, align 4
  store ptr %0, ptr %4, align 8, !tbaa !5
  store ptr %1, ptr %5, align 8, !tbaa !5
  call void @llvm.lifetime.start.p0(i64 4, ptr %6) #4
  call void @llvm.lifetime.start.p0(i64 2, ptr %7) #4
  %9 = load ptr, ptr %5, align 8, !tbaa !5
  %10 = call i64 @strlen(ptr noundef %9) #5
  %11 = trunc i64 %10 to i16
  store i16 %11, ptr %7, align 2, !tbaa !9
  %12 = load ptr, ptr %4, align 8, !tbaa !5
  %13 = call noundef i32 @_Z12write_shortsP8_IO_FILEPsi(ptr noundef %12, ptr noundef %7, i32 noundef 1)
  store i32 %13, ptr %6, align 4, !tbaa !11
  %14 = load i32, ptr %6, align 4, !tbaa !11
  %15 = icmp eq i32 %14, 0
  br i1 %15, label %16, label %17

16:                                               ; preds = %2
  store i32 0, ptr %3, align 4
  store i32 1, ptr %8, align 4
  br label %30

17:                                               ; preds = %2
  %18 = load ptr, ptr %5, align 8, !tbaa !5
  %19 = load i16, ptr %7, align 2, !tbaa !9
  %20 = sext i16 %19 to i32
  %21 = add nsw i32 %20, 1
  %22 = sext i32 %21 to i64
  %23 = load ptr, ptr %4, align 8, !tbaa !5
  %24 = call i64 @fwrite(ptr noundef %18, i64 noundef %22, i64 noundef 1, ptr noundef %23)
  %25 = trunc i64 %24 to i32
  store i32 %25, ptr %6, align 4, !tbaa !11
  %26 = load i32, ptr %6, align 4, !tbaa !11
  %27 = icmp eq i32 %26, 0
  br i1 %27, label %28, label %29

28:                                               ; preds = %17
  store i32 0, ptr %3, align 4
  store i32 1, ptr %8, align 4
  br label %30

29:                                               ; preds = %17
  store i32 1, ptr %3, align 4
  store i32 1, ptr %8, align 4
  br label %30

30:                                               ; preds = %29, %28, %16
  call void @llvm.lifetime.end.p0(i64 2, ptr %7) #4
  call void @llvm.lifetime.end.p0(i64 4, ptr %6) #4
  %31 = load i32, ptr %3, align 4
  ret i32 %31
}

; Function Attrs: nounwind willreturn memory(read)
declare i64 @strlen(ptr noundef) #3

attributes #0 = { nocallback nofree nosync nounwind willreturn memory(argmem: readwrite) }
attributes #1 = { "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 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 willreturn memory(read) "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 }
attributes #5 = { nounwind willreturn memory(read) }

!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 = !{!"short", !7, i64 0}
!11 = !{!12, !12, i64 0}
!12 = !{!"int", !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: nofree nounwind
declare noundef i64 @fwrite(ptr nocapture noundef, i64 noundef, i64 noundef, ptr nocapture noundef) local_unnamed_addr #1

; Function Attrs: mustprogress uwtable
declare dso_local noundef i32 @_Z12write_shortsP8_IO_FILEPsi(ptr noundef, ptr noundef, i32 noundef) local_unnamed_addr #2

; Function Attrs: mustprogress uwtable
define dso_local noundef range(i32 0, 2) i32 @_Z12write_stringP8_IO_FILEPKc(ptr noundef %0, ptr nocapture noundef %1) local_unnamed_addr #2 {
  %3 = alloca i16, align 2
  call void @llvm.lifetime.start.p0(i64 2, ptr nonnull %3) #4
  %4 = tail call i64 @strlen(ptr noundef nonnull dereferenceable(1) %1) #5
  %5 = trunc i64 %4 to i16
  store i16 %5, ptr %3, align 2, !tbaa !5
  %6 = call noundef i32 @_Z12write_shortsP8_IO_FILEPsi(ptr noundef %0, ptr noundef nonnull %3, i32 noundef 1)
  %7 = icmp eq i32 %6, 0
  br i1 %7, label %15, label %8

8:                                                ; preds = %2
  %9 = load i16, ptr %3, align 2, !tbaa !5
  %10 = sext i16 %9 to i64
  %11 = add nsw i64 %10, 1
  %12 = call i64 @fwrite(ptr noundef %1, i64 noundef %11, i64 noundef 1, ptr noundef %0)
  %13 = and i64 %12, 4294967295
  %14 = icmp ne i64 %13, 0
  %. = zext i1 %14 to i32
  br label %15

15:                                               ; preds = %8, %2
  %.0 = phi i32 [ 0, %2 ], [ %., %8 ]
  call void @llvm.lifetime.end.p0(i64 2, ptr nonnull %3) #4
  ret i32 %.0
}

; Function Attrs: mustprogress nofree nounwind willreturn memory(argmem: read)
declare i64 @strlen(ptr nocapture noundef) local_unnamed_addr #3

attributes #0 = { mustprogress nocallback nofree nosync nounwind willreturn memory(argmem: readwrite) }
attributes #1 = { nofree 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 = { mustprogress 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 = { mustprogress nofree nounwind willreturn memory(argmem: read) "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 }
attributes #5 = { nounwind willreturn memory(read) }

!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 = !{!"short", !7, i64 0}
!7 = !{!"omnipotent char", !8, i64 0}
!8 = !{!"Simple C++ TBAA"}


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