; LLVM IR from ljm941004/HYPERCV_PUBLIC :: modules/process/src/c_src (spectralprocess)

; 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 = external hidden unnamed_addr constant [8 x i8], align 1
@.str.2 = external hidden unnamed_addr constant [2 x i8], align 1
@.str.7 = external hidden unnamed_addr constant [2 x i8], align 1
@.str.8 = external hidden unnamed_addr constant [19 x i8], align 1
@.str.9 = external hidden unnamed_addr constant [3 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

declare i32 @printf(ptr noundef, ...) #1

; Function Attrs: noreturn nounwind
declare void @exit(i32 noundef) #2

; Function Attrs: nounwind allocsize(0)
declare noalias ptr @malloc(i64 noundef) #3

; Function Attrs: nounwind uwtable
define dso_local ptr @read_spectrum_file(ptr noundef %0, i32 noundef %1) #4 {
  %3 = alloca ptr, align 8
  %4 = alloca i32, align 4
  %5 = alloca ptr, align 8
  %6 = alloca ptr, align 8
  %7 = alloca ptr, align 8
  %8 = alloca float, align 4
  store ptr %0, ptr %3, align 8, !tbaa !5
  store i32 %1, ptr %4, align 4, !tbaa !9
  call void @llvm.lifetime.start.p0(i64 8, ptr %5) #5
  %9 = load ptr, ptr %3, align 8, !tbaa !5
  %10 = call noalias ptr @fopen(ptr noundef %9, ptr noundef @.str.7)
  store ptr %10, ptr %5, align 8, !tbaa !5
  %11 = load ptr, ptr %5, align 8, !tbaa !5
  %12 = icmp ne ptr %11, null
  br i1 %12, label %13, label %14

13:                                               ; preds = %2
  br label %18

14:                                               ; preds = %2
  %15 = call i32 (ptr, ...) @printf(ptr noundef @.str)
  %16 = call i32 (ptr, ...) @printf(ptr noundef @.str.8)
  %17 = call i32 (ptr, ...) @printf(ptr noundef @.str.2)
  call void @exit(i32 noundef 1) #6
  unreachable

18:                                               ; preds = %13
  call void @llvm.lifetime.start.p0(i64 8, ptr %6) #5
  %19 = load i32, ptr %4, align 4, !tbaa !9
  %20 = sext i32 %19 to i64
  %21 = mul i64 %20, 4
  %22 = call noalias ptr @malloc(i64 noundef %21) #7
  store ptr %22, ptr %6, align 8, !tbaa !5
  call void @llvm.lifetime.start.p0(i64 8, ptr %7) #5
  %23 = load ptr, ptr %6, align 8, !tbaa !5
  store ptr %23, ptr %7, align 8, !tbaa !5
  call void @llvm.lifetime.start.p0(i64 4, ptr %8) #5
  store float 0.000000e+00, ptr %8, align 4, !tbaa !11
  br label %24

24:                                               ; preds = %28, %18
  %25 = load ptr, ptr %5, align 8, !tbaa !5
  %26 = call i32 (ptr, ptr, ...) @__isoc99_fscanf(ptr noundef %25, ptr noundef @.str.9, ptr noundef %8)
  %27 = icmp ne i32 %26, -1
  br i1 %27, label %28, label %33

28:                                               ; preds = %24
  %29 = load float, ptr %8, align 4, !tbaa !11
  %30 = load ptr, ptr %7, align 8, !tbaa !5
  store float %29, ptr %30, align 4, !tbaa !11
  %31 = load ptr, ptr %7, align 8, !tbaa !5
  %32 = getelementptr inbounds float, ptr %31, i32 1
  store ptr %32, ptr %7, align 8, !tbaa !5
  br label %24, !llvm.loop !13

33:                                               ; preds = %24
  %34 = load ptr, ptr %5, align 8, !tbaa !5
  %35 = call i32 @fclose(ptr noundef %34)
  %36 = load ptr, ptr %6, align 8, !tbaa !5
  call void @llvm.lifetime.end.p0(i64 4, ptr %8) #5
  call void @llvm.lifetime.end.p0(i64 8, ptr %7) #5
  call void @llvm.lifetime.end.p0(i64 8, ptr %6) #5
  call void @llvm.lifetime.end.p0(i64 8, ptr %5) #5
  ret ptr %36
}

declare noalias ptr @fopen(ptr noundef, ptr noundef) #1

declare i32 @__isoc99_fscanf(ptr noundef, ptr noundef, ...) #1

declare i32 @fclose(ptr noundef) #1

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 = { noreturn 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 allocsize(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 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 #5 = { nounwind }
attributes #6 = { noreturn nounwind }
attributes #7 = { nounwind allocsize(0) }

!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 = !{!"int", !7, i64 0}
!11 = !{!12, !12, i64 0}
!12 = !{!"float", !7, i64 0}
!13 = distinct !{!13, !14}
!14 = !{!"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 = external hidden unnamed_addr constant [8 x i8], align 1
@.str.2 = external hidden unnamed_addr constant [2 x i8], align 1
@.str.7 = external hidden unnamed_addr constant [2 x i8], align 1
@.str.8 = external hidden unnamed_addr constant [19 x i8], align 1
@.str.9 = external hidden unnamed_addr constant [3 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
declare noundef i32 @printf(ptr nocapture noundef readonly, ...) local_unnamed_addr #1

; Function Attrs: noreturn nounwind
declare void @exit(i32 noundef) local_unnamed_addr #2

; Function Attrs: mustprogress nofree nounwind willreturn allockind("alloc,uninitialized") allocsize(0) memory(inaccessiblemem: readwrite)
declare noalias noundef ptr @malloc(i64 noundef) local_unnamed_addr #3

; Function Attrs: nounwind uwtable
define dso_local noalias noundef ptr @read_spectrum_file(ptr nocapture noundef readonly %0, i32 noundef %1) local_unnamed_addr #4 {
  %3 = alloca float, align 4
  %4 = tail call noalias ptr @fopen(ptr noundef %0, ptr noundef nonnull @.str.7)
  %.not = icmp eq ptr %4, null
  br i1 %.not, label %5, label %9

5:                                                ; preds = %2
  %6 = tail call i32 (ptr, ...) @printf(ptr noundef nonnull dereferenceable(1) @.str)
  %7 = tail call i32 (ptr, ...) @printf(ptr noundef nonnull dereferenceable(1) @.str.8)
  %8 = tail call i32 (ptr, ...) @printf(ptr noundef nonnull dereferenceable(1) @.str.2)
  tail call void @exit(i32 noundef 1) #6
  unreachable

9:                                                ; preds = %2
  %10 = sext i32 %1 to i64
  %11 = shl nsw i64 %10, 2
  %12 = tail call noalias ptr @malloc(i64 noundef %11) #7
  call void @llvm.lifetime.start.p0(i64 4, ptr nonnull %3) #8
  store float 0.000000e+00, ptr %3, align 4, !tbaa !5
  %13 = call i32 (ptr, ptr, ...) @__isoc99_fscanf(ptr noundef nonnull %4, ptr noundef nonnull @.str.9, ptr noundef nonnull %3) #8
  %.not910 = icmp eq i32 %13, -1
  br i1 %.not910, label %._crit_edge, label %.lr.ph

.lr.ph:                                           ; preds = %9, %.lr.ph
  %.011 = phi ptr [ %15, %.lr.ph ], [ %12, %9 ]
  %14 = load float, ptr %3, align 4, !tbaa !5
  store float %14, ptr %.011, align 4, !tbaa !5
  %15 = getelementptr inbounds i8, ptr %.011, i64 4
  %16 = call i32 (ptr, ptr, ...) @__isoc99_fscanf(ptr noundef nonnull %4, ptr noundef nonnull @.str.9, ptr noundef nonnull %3) #8
  %.not9 = icmp eq i32 %16, -1
  br i1 %.not9, label %._crit_edge, label %.lr.ph, !llvm.loop !9

._crit_edge:                                      ; preds = %.lr.ph, %9
  %17 = call i32 @fclose(ptr noundef nonnull %4)
  call void @llvm.lifetime.end.p0(i64 4, ptr nonnull %3) #8
  ret ptr %12
}

; 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 #5

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

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 = { noreturn 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 = { mustprogress nofree nounwind willreturn allockind("alloc,uninitialized") allocsize(0) memory(inaccessiblemem: readwrite) "alloc-family"="malloc" "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 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 #5 = { "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 #6 = { noreturn nounwind }
attributes #7 = { nounwind allocsize(0) }
attributes #8 = { 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 = !{!"float", !7, i64 0}
!7 = !{!"omnipotent char", !8, i64 0}
!8 = !{!"Simple C/C++ TBAA"}
!9 = distinct !{!9, !10}
!10 = !{!"llvm.loop.mustprogress"}


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