; LLVM IR from alexzheng42/sDMD :: analysis (REMD)

; 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.8 = external hidden unnamed_addr constant [9 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: nocallback nofree nosync nounwind willreturn memory(argmem: readwrite)
declare void @llvm.lifetime.end.p0(i64 immarg, ptr nocapture) #0

; Function Attrs: nounwind uwtable
define dso_local i32 @ReadREMDTempFile(ptr noundef %0) #1 {
  %2 = alloca i32, align 4
  %3 = alloca ptr, align 8
  %4 = alloca [1024 x i8], align 16
  %5 = alloca i32, align 4
  %6 = alloca double, align 8
  %7 = alloca i32, align 4
  store ptr %0, ptr %3, align 8, !tbaa !5
  call void @llvm.lifetime.start.p0(i64 1024, ptr %4) #4
  call void @llvm.lifetime.start.p0(i64 4, ptr %5) #4
  call void @llvm.lifetime.start.p0(i64 8, ptr %6) #4
  br label %8

8:                                                ; preds = %24, %1
  %9 = getelementptr inbounds [1024 x i8], ptr %4, i64 0, i64 0
  %10 = load ptr, ptr %3, align 8, !tbaa !5
  %11 = call ptr @fgets(ptr noundef %9, i32 noundef 1024, ptr noundef %10)
  %12 = icmp eq ptr %11, null
  br i1 %12, label %13, label %14

13:                                               ; preds = %8
  store i32 -1, ptr %2, align 4
  store i32 1, ptr %7, align 4
  br label %29

14:                                               ; preds = %8
  %15 = getelementptr inbounds [1024 x i8], ptr %4, i64 0, i64 0
  %16 = load i8, ptr %15, align 16, !tbaa !9
  %17 = sext i8 %16 to i32
  %18 = icmp eq i32 %17, 64
  br i1 %18, label %24, label %19

19:                                               ; preds = %14
  %20 = getelementptr inbounds [1024 x i8], ptr %4, i64 0, i64 0
  %21 = load i8, ptr %20, align 16, !tbaa !9
  %22 = sext i8 %21 to i32
  %23 = icmp eq i32 %22, 35
  br i1 %23, label %24, label %25

24:                                               ; preds = %19, %14
  br label %8

25:                                               ; preds = %19
  %26 = getelementptr inbounds [1024 x i8], ptr %4, i64 0, i64 0
  %27 = call i32 (ptr, ptr, ...) @__isoc99_sscanf(ptr noundef %26, ptr noundef @.str.8, ptr noundef %6, ptr noundef %6, ptr noundef %5) #4
  %28 = load i32, ptr %5, align 4, !tbaa !10
  store i32 %28, ptr %2, align 4
  store i32 1, ptr %7, align 4
  br label %29

29:                                               ; preds = %25, %13
  call void @llvm.lifetime.end.p0(i64 8, ptr %6) #4
  call void @llvm.lifetime.end.p0(i64 4, ptr %5) #4
  call void @llvm.lifetime.end.p0(i64 1024, ptr %4) #4
  %30 = load i32, ptr %2, align 4
  ret i32 %30
}

declare ptr @fgets(ptr noundef, i32 noundef, ptr noundef) #2

; Function Attrs: nounwind
declare i32 @__isoc99_sscanf(ptr noundef, ptr noundef, ...) #3

attributes #0 = { nocallback nofree nosync nounwind willreturn memory(argmem: readwrite) }
attributes #1 = { 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 = { "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 "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/C++ TBAA"}
!9 = !{!7, !7, i64 0}
!10 = !{!11, !11, i64 0}
!11 = !{!"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"

@.str.8 = external hidden unnamed_addr constant [9 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: mustprogress nocallback nofree nosync nounwind willreturn memory(argmem: readwrite)
declare void @llvm.lifetime.end.p0(i64 immarg, ptr nocapture) #0

; Function Attrs: nofree nounwind uwtable
define dso_local i32 @ReadREMDTempFile(ptr nocapture noundef %0) local_unnamed_addr #1 {
  %2 = alloca [1024 x i8], align 16
  %3 = alloca i32, align 4
  %4 = alloca double, align 8
  call void @llvm.lifetime.start.p0(i64 1024, ptr nonnull %2) #3
  call void @llvm.lifetime.start.p0(i64 4, ptr nonnull %3) #3
  call void @llvm.lifetime.start.p0(i64 8, ptr nonnull %4) #3
  %5 = call ptr @fgets(ptr noundef nonnull %2, i32 noundef 1024, ptr noundef %0)
  %6 = icmp eq ptr %5, null
  br i1 %6, label %.loopexit, label %.lr.ph

.lr.ph:                                           ; preds = %1, %.backedge
  %7 = load i8, ptr %2, align 16
  switch i8 %7, label %10 [
    i8 64, label %.backedge
    i8 35, label %.backedge
  ]

.backedge:                                        ; preds = %.lr.ph, %.lr.ph
  %8 = call ptr @fgets(ptr noundef nonnull %2, i32 noundef 1024, ptr noundef %0)
  %9 = icmp eq ptr %8, null
  br i1 %9, label %.loopexit, label %.lr.ph

10:                                               ; preds = %.lr.ph
  %11 = call i32 (ptr, ptr, ...) @__isoc99_sscanf(ptr noundef nonnull %2, ptr noundef nonnull @.str.8, ptr noundef nonnull %4, ptr noundef nonnull %4, ptr noundef nonnull %3) #3
  %12 = load i32, ptr %3, align 4, !tbaa !5
  br label %.loopexit

.loopexit:                                        ; preds = %.backedge, %1, %10
  %.0 = phi i32 [ %12, %10 ], [ -1, %1 ], [ -1, %.backedge ]
  call void @llvm.lifetime.end.p0(i64 8, ptr nonnull %4) #3
  call void @llvm.lifetime.end.p0(i64 4, ptr nonnull %3) #3
  call void @llvm.lifetime.end.p0(i64 1024, ptr nonnull %2) #3
  ret i32 %.0
}

; Function Attrs: nofree nounwind
declare noundef ptr @fgets(ptr noundef, i32 noundef, ptr nocapture noundef) local_unnamed_addr #2

; Function Attrs: nofree nounwind
declare noundef i32 @__isoc99_sscanf(ptr nocapture noundef readonly, ptr nocapture noundef readonly, ...) local_unnamed_addr #2

attributes #0 = { mustprogress nocallback nofree nosync nounwind willreturn memory(argmem: readwrite) }
attributes #1 = { nofree 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 = { 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 #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 = !{!"int", !7, i64 0}
!7 = !{!"omnipotent char", !8, i64 0}
!8 = !{!"Simple C/C++ TBAA"}


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