; LLVM IR from Tencent-RoboticsX/jbdl :: src/jbdl/experimental/qpoases/src/Utils.ll (ZN7qpOASES12readFromFileEPiiPKc)

; 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"

@.str.4 = external hidden unnamed_addr constant [28 x i8], align 1
@.str.5 = external hidden unnamed_addr constant [100 x i8], align 1
@.str.8 = external hidden unnamed_addr constant [2 x i8], align 1
@.str.9 = external hidden unnamed_addr constant [5 x i8], align 1
@.str.11 = external hidden unnamed_addr constant [4 x i8], align 1

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

; Function Attrs: nounwind
declare i32 @snprintf(ptr noundef, i64 noundef, ptr noundef, ...) #1

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

declare noundef ptr @_ZN7qpOASES23getGlobalMessageHandlerEv() #2

declare noundef i32 @_ZN7qpOASES15MessageHandling10throwErrorENS_11returnValueEPKcS3_S3_mNS_16VisibilityStatusE(ptr noundef nonnull align 8 dereferenceable(28), i32 noundef, ptr noundef, ptr noundef, ptr noundef, i64 noundef, i32 noundef) #2

declare noalias ptr @fopen(ptr noundef, ptr noundef) #2

declare i32 @__isoc99_fscanf(ptr noundef, ptr noundef, ...) #2

declare i32 @fclose(ptr noundef) #2

; Function Attrs: mustprogress uwtable
define dso_local noundef i32 @_ZN7qpOASES12readFromFileEPiiPKc(ptr noundef %0, i32 noundef %1, ptr noundef %2) #3 {
  %4 = alloca i32, align 4
  %5 = alloca ptr, align 8
  %6 = alloca i32, align 4
  %7 = alloca ptr, align 8
  %8 = alloca i32, align 4
  %9 = alloca ptr, align 8
  %10 = alloca [160 x i8], align 16
  %11 = alloca i32, align 4
  %12 = alloca [160 x i8], align 16
  store ptr %0, ptr %5, align 8, !tbaa !5
  store i32 %1, ptr %6, align 4, !tbaa !9
  store ptr %2, ptr %7, align 8, !tbaa !5
  call void @llvm.lifetime.start.p0(i64 4, ptr %8) #4
  call void @llvm.lifetime.start.p0(i64 8, ptr %9) #4
  %13 = load ptr, ptr %7, align 8, !tbaa !5
  %14 = call noalias ptr @fopen(ptr noundef %13, ptr noundef @.str.8)
  store ptr %14, ptr %9, align 8, !tbaa !5
  %15 = icmp eq ptr %14, null
  br i1 %15, label %16, label %23

16:                                               ; preds = %3
  call void @llvm.lifetime.start.p0(i64 160, ptr %10) #4
  %17 = getelementptr inbounds [160 x i8], ptr %10, i64 0, i64 0
  %18 = load ptr, ptr %7, align 8, !tbaa !5
  %19 = call i32 (ptr, i64, ptr, ...) @snprintf(ptr noundef %17, i64 noundef 160, ptr noundef @.str.9, ptr noundef %18) #4
  %20 = call noundef ptr @_ZN7qpOASES23getGlobalMessageHandlerEv()
  %21 = getelementptr inbounds [160 x i8], ptr %10, i64 0, i64 0
  %22 = call noundef i32 @_ZN7qpOASES15MessageHandling10throwErrorENS_11returnValueEPKcS3_S3_mNS_16VisibilityStatusE(ptr noundef nonnull align 8 dereferenceable(28) %20, i32 noundef 127, ptr noundef %21, ptr noundef @.str.4, ptr noundef @.str.5, i64 noundef 353, i32 noundef 1)
  store i32 %22, ptr %4, align 4
  store i32 1, ptr %11, align 4
  call void @llvm.lifetime.end.p0(i64 160, ptr %10) #4
  br label %52

23:                                               ; preds = %3
  store i32 0, ptr %8, align 4, !tbaa !9
  br label %24

24:                                               ; preds = %46, %23
  %25 = load i32, ptr %8, align 4, !tbaa !9
  %26 = load i32, ptr %6, align 4, !tbaa !9
  %27 = icmp slt i32 %25, %26
  br i1 %27, label %28, label %49

28:                                               ; preds = %24
  %29 = load ptr, ptr %9, align 8, !tbaa !5
  %30 = load ptr, ptr %5, align 8, !tbaa !5
  %31 = load i32, ptr %8, align 4, !tbaa !9
  %32 = sext i32 %31 to i64
  %33 = getelementptr inbounds i32, ptr %30, i64 %32
  %34 = call i32 (ptr, ptr, ...) @__isoc99_fscanf(ptr noundef %29, ptr noundef @.str.11, ptr noundef %33)
  %35 = icmp eq i32 %34, 0
  br i1 %35, label %36, label %45

36:                                               ; preds = %28
  %37 = load ptr, ptr %9, align 8, !tbaa !5
  %38 = call i32 @fclose(ptr noundef %37)
  call void @llvm.lifetime.start.p0(i64 160, ptr %12) #4
  %39 = getelementptr inbounds [160 x i8], ptr %12, i64 0, i64 0
  %40 = load ptr, ptr %7, align 8, !tbaa !5
  %41 = call i32 (ptr, i64, ptr, ...) @snprintf(ptr noundef %39, i64 noundef 160, ptr noundef @.str.9, ptr noundef %40) #4
  %42 = call noundef ptr @_ZN7qpOASES23getGlobalMessageHandlerEv()
  %43 = getelementptr inbounds [160 x i8], ptr %12, i64 0, i64 0
  %44 = call noundef i32 @_ZN7qpOASES15MessageHandling10throwErrorENS_11returnValueEPKcS3_S3_mNS_16VisibilityStatusE(ptr noundef nonnull align 8 dereferenceable(28) %42, i32 noundef 129, ptr noundef %43, ptr noundef @.str.4, ptr noundef @.str.5, i64 noundef 368, i32 noundef 1)
  store i32 %44, ptr %4, align 4
  store i32 1, ptr %11, align 4
  call void @llvm.lifetime.end.p0(i64 160, ptr %12) #4
  br label %52

45:                                               ; preds = %28
  br label %46

46:                                               ; preds = %45
  %47 = load i32, ptr %8, align 4, !tbaa !9
  %48 = add nsw i32 %47, 1
  store i32 %48, ptr %8, align 4, !tbaa !9
  br label %24, !llvm.loop !11

49:                                               ; preds = %24
  %50 = load ptr, ptr %9, align 8, !tbaa !5
  %51 = call i32 @fclose(ptr noundef %50)
  store i32 0, ptr %4, align 4
  store i32 1, ptr %11, align 4
  br label %52

52:                                               ; preds = %49, %36, %16
  call void @llvm.lifetime.end.p0(i64 8, ptr %9) #4
  call void @llvm.lifetime.end.p0(i64 4, ptr %8) #4
  %53 = load i32, ptr %4, align 4
  ret i32 %53
}

attributes #0 = { nocallback nofree nosync nounwind willreturn memory(argmem: readwrite) }
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 = { "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 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 #4 = { 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 = !{!"int", !7, i64 0}
!11 = distinct !{!11, !12}
!12 = !{!"llvm.loop.mustprogress"}


; 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"

@.str.4 = external hidden unnamed_addr constant [28 x i8], align 1
@.str.5 = external hidden unnamed_addr constant [100 x i8], align 1
@.str.8 = external hidden unnamed_addr constant [2 x i8], align 1
@.str.9 = external hidden unnamed_addr constant [5 x i8], align 1
@.str.11 = external hidden unnamed_addr constant [4 x i8], align 1

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

; Function Attrs: nofree nounwind
declare noundef i32 @snprintf(ptr noalias nocapture noundef writeonly, i64 noundef, ptr nocapture noundef readonly, ...) local_unnamed_addr #1

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

declare noundef ptr @_ZN7qpOASES23getGlobalMessageHandlerEv() local_unnamed_addr #2

declare noundef i32 @_ZN7qpOASES15MessageHandling10throwErrorENS_11returnValueEPKcS3_S3_mNS_16VisibilityStatusE(ptr noundef nonnull align 8 dereferenceable(28), i32 noundef, ptr noundef, ptr noundef, ptr noundef, i64 noundef, i32 noundef) local_unnamed_addr #2

; Function Attrs: nofree nounwind
declare noalias noundef ptr @fopen(ptr nocapture noundef readonly, ptr nocapture noundef readonly) local_unnamed_addr #1

declare i32 @__isoc99_fscanf(ptr noundef, ptr noundef, ...) local_unnamed_addr #2

; Function Attrs: nofree nounwind
declare noundef i32 @fclose(ptr nocapture noundef) local_unnamed_addr #1

; Function Attrs: mustprogress uwtable
define dso_local noundef i32 @_ZN7qpOASES12readFromFileEPiiPKc(ptr noundef %0, i32 noundef %1, ptr noundef %2) local_unnamed_addr #3 {
  %4 = alloca [160 x i8], align 16
  %5 = alloca [160 x i8], align 16
  %6 = tail call noalias ptr @fopen(ptr noundef %2, ptr noundef nonnull @.str.8)
  %7 = icmp eq ptr %6, null
  br i1 %7, label %9, label %.preheader

.preheader:                                       ; preds = %3
  %8 = icmp sgt i32 %1, 0
  br i1 %8, label %.lr.ph.preheader, label %._crit_edge

.lr.ph.preheader:                                 ; preds = %.preheader
  %wide.trip.count = zext nneg i32 %1 to i64
  br label %.lr.ph

9:                                                ; preds = %3
  call void @llvm.lifetime.start.p0(i64 160, ptr nonnull %4) #4
  %10 = call i32 (ptr, i64, ptr, ...) @snprintf(ptr noundef nonnull dereferenceable(1) %4, i64 noundef 160, ptr noundef nonnull @.str.9, ptr noundef %2) #4
  %11 = tail call noundef ptr @_ZN7qpOASES23getGlobalMessageHandlerEv()
  %12 = call noundef i32 @_ZN7qpOASES15MessageHandling10throwErrorENS_11returnValueEPKcS3_S3_mNS_16VisibilityStatusE(ptr noundef nonnull align 8 dereferenceable(28) %11, i32 noundef 127, ptr noundef nonnull %4, ptr noundef nonnull @.str.4, ptr noundef nonnull @.str.5, i64 noundef 353, i32 noundef 1)
  call void @llvm.lifetime.end.p0(i64 160, ptr nonnull %4) #4
  br label %23

13:                                               ; preds = %.lr.ph
  %indvars.iv.next = add nuw nsw i64 %indvars.iv, 1
  %exitcond.not = icmp eq i64 %indvars.iv.next, %wide.trip.count
  br i1 %exitcond.not, label %._crit_edge, label %.lr.ph, !llvm.loop !5

.lr.ph:                                           ; preds = %.lr.ph.preheader, %13
  %indvars.iv = phi i64 [ 0, %.lr.ph.preheader ], [ %indvars.iv.next, %13 ]
  %14 = getelementptr inbounds i32, ptr %0, i64 %indvars.iv
  %15 = tail call i32 (ptr, ptr, ...) @__isoc99_fscanf(ptr noundef nonnull %6, ptr noundef nonnull @.str.11, ptr noundef %14)
  %16 = icmp eq i32 %15, 0
  br i1 %16, label %17, label %13

17:                                               ; preds = %.lr.ph
  %18 = tail call i32 @fclose(ptr noundef nonnull %6)
  call void @llvm.lifetime.start.p0(i64 160, ptr nonnull %5) #4
  %19 = call i32 (ptr, i64, ptr, ...) @snprintf(ptr noundef nonnull dereferenceable(1) %5, i64 noundef 160, ptr noundef nonnull @.str.9, ptr noundef %2) #4
  %20 = tail call noundef ptr @_ZN7qpOASES23getGlobalMessageHandlerEv()
  %21 = call noundef i32 @_ZN7qpOASES15MessageHandling10throwErrorENS_11returnValueEPKcS3_S3_mNS_16VisibilityStatusE(ptr noundef nonnull align 8 dereferenceable(28) %20, i32 noundef 129, ptr noundef nonnull %5, ptr noundef nonnull @.str.4, ptr noundef nonnull @.str.5, i64 noundef 368, i32 noundef 1)
  call void @llvm.lifetime.end.p0(i64 160, ptr nonnull %5) #4
  br label %23

._crit_edge:                                      ; preds = %13, %.preheader
  %22 = tail call i32 @fclose(ptr noundef nonnull %6)
  br label %23

23:                                               ; preds = %._crit_edge, %17, %9
  %.0 = phi i32 [ %12, %9 ], [ %21, %17 ], [ 0, %._crit_edge ]
  ret i32 %.0
}

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 = { "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 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 #4 = { 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 = distinct !{!5, !6}
!6 = !{!"llvm.loop.mustprogress"}


; Effective O3 passes: EarlyCSEPass,GlobalOptPass,IndVarSimplifyPass,InferFunctionAttrsPass,InstCombinePass,JumpThreadingPass,LoopRotatePass,LoopSimplifyPass,LoopUnrollPass,SROAPass,SimplifyCFGPass,TailCallElimPass