; LLVM IR from radualexandrub/Optimization-Algorithms-Find-local-minimum :: 2D_Derivative_Quadratic_CostFunctions (main)

; 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"

@logfile1 = external dso_local global ptr, align 8
@logfile2 = external dso_local global ptr, align 8
@logfile3 = external dso_local global ptr, align 8
@.str.11 = external hidden unnamed_addr constant [9 x i8], align 1
@.str.12 = external hidden unnamed_addr constant [2 x i8], align 1
@.str.13 = external hidden unnamed_addr constant [9 x i8], align 1
@.str.14 = external hidden unnamed_addr constant [9 x i8], align 1
@.str.15 = external hidden unnamed_addr constant [37 x i8], align 1
@__const.main.A = external hidden unnamed_addr constant [2 x [2 x double]], align 16
@__const.main.b = external hidden unnamed_addr constant [2 x double], align 16
@__const.main.A2 = external hidden unnamed_addr constant [2 x [2 x double]], align 16
@__const.main.b2 = external hidden unnamed_addr constant [2 x double], align 16
@.str.16 = external hidden unnamed_addr constant [23 x i8], align 1
@__const.main.x_start = external hidden unnamed_addr constant [2 x double], align 16
@.str.17 = external hidden unnamed_addr constant [40 x i8], align 1
@.str.18 = external hidden unnamed_addr constant [67 x i8], align 1

; Function Attrs: nounwind uwtable
declare dso_local double @f2_paraboloid_xy(double noundef, double noundef) #0

; Function Attrs: nounwind uwtable
declare dso_local double @f2_paraboloid_xy_Dx(double noundef, double noundef) #0

; Function Attrs: nounwind uwtable
declare dso_local double @f2_paraboloid_xy_Dy(double noundef, double noundef) #0

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

; Function Attrs: nocallback nofree nosync nounwind willreturn memory(argmem: readwrite)
declare void @llvm.lifetime.start.p0(i64 immarg, ptr nocapture) #2

; Function Attrs: nocallback nofree nosync nounwind willreturn memory(argmem: readwrite)
declare void @llvm.lifetime.end.p0(i64 immarg, ptr nocapture) #2

; Function Attrs: nounwind uwtable
declare dso_local void @Gradienti_conjugati_nepatr(i32 noundef, ptr noundef, ptr noundef, ptr noundef, double noundef, ptr noundef) #0

; Function Attrs: nounwind uwtable
define dso_local i32 @main() #0 {
  %1 = alloca i32, align 4
  %2 = alloca [2 x [2 x double]], align 16
  %3 = alloca [2 x double], align 16
  %4 = alloca [2 x [2 x double]], align 16
  %5 = alloca [2 x double], align 16
  %6 = alloca i32, align 4
  %7 = alloca double, align 8
  %8 = alloca [2 x double], align 16
  %9 = alloca [2 x double], align 16
  store i32 0, ptr %1, align 4
  %10 = call noalias ptr @fopen(ptr noundef @.str.11, ptr noundef @.str.12)
  store ptr %10, ptr @logfile1, align 8, !tbaa !5
  %11 = call noalias ptr @fopen(ptr noundef @.str.13, ptr noundef @.str.12)
  store ptr %11, ptr @logfile2, align 8, !tbaa !5
  %12 = call noalias ptr @fopen(ptr noundef @.str.14, ptr noundef @.str.12)
  store ptr %12, ptr @logfile3, align 8, !tbaa !5
  %13 = load ptr, ptr @logfile1, align 8, !tbaa !5
  %14 = icmp eq ptr %13, null
  br i1 %14, label %21, label %15

15:                                               ; preds = %0
  %16 = load ptr, ptr @logfile2, align 8, !tbaa !5
  %17 = icmp eq ptr %16, null
  br i1 %17, label %21, label %18

18:                                               ; preds = %15
  %19 = load ptr, ptr @logfile3, align 8, !tbaa !5
  %20 = icmp eq ptr %19, null
  br i1 %20, label %21, label %23

21:                                               ; preds = %18, %15, %0
  %22 = call i32 (ptr, ...) @printf(ptr noundef @.str.15)
  store i32 1, ptr %1, align 4
  br label %35

23:                                               ; preds = %18
  call void @llvm.lifetime.start.p0(i64 32, ptr %2) #4
  call void @llvm.memcpy.p0.p0.i64(ptr align 16 %2, ptr align 16 @__const.main.A, i64 32, i1 false)
  call void @llvm.lifetime.start.p0(i64 16, ptr %3) #4
  call void @llvm.memcpy.p0.p0.i64(ptr align 16 %3, ptr align 16 @__const.main.b, i64 16, i1 false)
  call void @llvm.lifetime.start.p0(i64 32, ptr %4) #4
  call void @llvm.memcpy.p0.p0.i64(ptr align 16 %4, ptr align 16 @__const.main.A2, i64 32, i1 false)
  call void @llvm.lifetime.start.p0(i64 16, ptr %5) #4
  call void @llvm.memcpy.p0.p0.i64(ptr align 16 %5, ptr align 16 @__const.main.b2, i64 16, i1 false)
  %24 = call i32 (ptr, ...) @printf(ptr noundef @.str.16)
  call void @llvm.lifetime.start.p0(i64 4, ptr %6) #4
  store i32 2, ptr %6, align 4, !tbaa !9
  call void @llvm.lifetime.start.p0(i64 8, ptr %7) #4
  store double 0x3E7AD7F29ABCAF48, ptr %7, align 8, !tbaa !11
  call void @llvm.lifetime.start.p0(i64 16, ptr %8) #4
  call void @llvm.memcpy.p0.p0.i64(ptr align 16 %8, ptr align 16 @__const.main.x_start, i64 16, i1 false)
  %25 = call i32 (ptr, ...) @printf(ptr noundef @.str.17)
  %26 = getelementptr inbounds [2 x double], ptr %8, i64 0, i64 0
  store double 0.000000e+00, ptr %26, align 16, !tbaa !11
  %27 = getelementptr inbounds [2 x double], ptr %8, i64 0, i64 1
  store double 1.000000e+00, ptr %27, align 8, !tbaa !11
  %28 = call i32 (ptr, ...) @printf(ptr noundef @.str.18)
  %29 = getelementptr inbounds [2 x double], ptr %8, i64 0, i64 0
  store double 0.000000e+00, ptr %29, align 16, !tbaa !11
  %30 = getelementptr inbounds [2 x double], ptr %8, i64 0, i64 1
  store double 1.000000e+00, ptr %30, align 8, !tbaa !11
  call void @llvm.lifetime.start.p0(i64 16, ptr %9) #4
  %31 = getelementptr inbounds [2 x double], ptr %8, i64 0, i64 0
  store double 9.000000e+00, ptr %31, align 16, !tbaa !11
  %32 = getelementptr inbounds [2 x double], ptr %8, i64 0, i64 1
  store double 7.000000e+00, ptr %32, align 8, !tbaa !11
  %33 = load double, ptr %7, align 8, !tbaa !11
  %34 = getelementptr inbounds [2 x double], ptr %8, i64 0, i64 0
  call void @Gradienti_conjugati_nepatr(i32 noundef 2, ptr noundef @f2_paraboloid_xy, ptr noundef @f2_paraboloid_xy_Dx, ptr noundef @f2_paraboloid_xy_Dy, double noundef %33, ptr noundef %34)
  store i32 1, ptr %1, align 4
  call void @llvm.lifetime.end.p0(i64 16, ptr %9) #4
  call void @llvm.lifetime.end.p0(i64 16, ptr %8) #4
  call void @llvm.lifetime.end.p0(i64 8, ptr %7) #4
  call void @llvm.lifetime.end.p0(i64 4, ptr %6) #4
  call void @llvm.lifetime.end.p0(i64 16, ptr %5) #4
  call void @llvm.lifetime.end.p0(i64 32, ptr %4) #4
  call void @llvm.lifetime.end.p0(i64 16, ptr %3) #4
  call void @llvm.lifetime.end.p0(i64 32, ptr %2) #4
  br label %35

35:                                               ; preds = %23, %21
  %36 = load i32, ptr %1, align 4
  ret i32 %36
}

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

; Function Attrs: nocallback nofree nounwind willreturn memory(argmem: readwrite)
declare void @llvm.memcpy.p0.p0.i64(ptr noalias nocapture writeonly, ptr noalias nocapture readonly, i64, i1 immarg) #3

attributes #0 = { 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 #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 = { nocallback nofree nosync nounwind willreturn memory(argmem: readwrite) }
attributes #3 = { nocallback nofree nounwind willreturn memory(argmem: readwrite) }
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 = !{!10, !10, i64 0}
!10 = !{!"int", !7, i64 0}
!11 = !{!12, !12, i64 0}
!12 = !{!"double", !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"

@logfile1 = external dso_local local_unnamed_addr global ptr, align 8
@logfile2 = external dso_local local_unnamed_addr global ptr, align 8
@logfile3 = external dso_local local_unnamed_addr global ptr, align 8
@.str.11 = external hidden unnamed_addr constant [9 x i8], align 1
@.str.12 = external hidden unnamed_addr constant [2 x i8], align 1
@.str.13 = external hidden unnamed_addr constant [9 x i8], align 1
@.str.14 = external hidden unnamed_addr constant [9 x i8], align 1
@.str.15 = external hidden unnamed_addr constant [37 x i8], align 1
@.str.16 = external hidden unnamed_addr constant [23 x i8], align 1
@.str.17 = external hidden unnamed_addr constant [40 x i8], align 1
@.str.18 = external hidden unnamed_addr constant [67 x i8], align 1

; Function Attrs: nounwind uwtable
declare dso_local double @f2_paraboloid_xy(double noundef, double noundef) #0

; Function Attrs: nounwind uwtable
declare dso_local double @f2_paraboloid_xy_Dx(double noundef, double noundef) #0

; Function Attrs: nounwind uwtable
declare dso_local double @f2_paraboloid_xy_Dy(double noundef, double noundef) #0

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

; Function Attrs: mustprogress nocallback nofree nosync nounwind willreturn memory(argmem: readwrite)
declare void @llvm.lifetime.start.p0(i64 immarg, ptr nocapture) #2

; Function Attrs: mustprogress nocallback nofree nosync nounwind willreturn memory(argmem: readwrite)
declare void @llvm.lifetime.end.p0(i64 immarg, ptr nocapture) #2

; Function Attrs: nounwind uwtable
declare dso_local void @Gradienti_conjugati_nepatr(i32 noundef, ptr noundef, ptr noundef, ptr noundef, double noundef, ptr noundef) local_unnamed_addr #0

; Function Attrs: nounwind uwtable
define dso_local noundef i32 @main() local_unnamed_addr #0 {
  %1 = alloca [2 x double], align 16
  %2 = tail call noalias ptr @fopen(ptr noundef nonnull @.str.11, ptr noundef nonnull @.str.12)
  store ptr %2, ptr @logfile1, align 8, !tbaa !5
  %3 = tail call noalias ptr @fopen(ptr noundef nonnull @.str.13, ptr noundef nonnull @.str.12)
  store ptr %3, ptr @logfile2, align 8, !tbaa !5
  %4 = tail call noalias ptr @fopen(ptr noundef nonnull @.str.14, ptr noundef nonnull @.str.12)
  store ptr %4, ptr @logfile3, align 8, !tbaa !5
  %5 = load ptr, ptr @logfile1, align 8, !tbaa !5
  %6 = icmp eq ptr %5, null
  %7 = load ptr, ptr @logfile2, align 8
  %8 = icmp eq ptr %7, null
  %or.cond = select i1 %6, i1 true, i1 %8
  %9 = icmp eq ptr %4, null
  %or.cond3 = or i1 %9, %or.cond
  br i1 %or.cond3, label %10, label %12

10:                                               ; preds = %0
  %11 = tail call i32 (ptr, ...) @printf(ptr noundef nonnull dereferenceable(1) @.str.15)
  br label %16

12:                                               ; preds = %0
  %13 = tail call i32 (ptr, ...) @printf(ptr noundef nonnull dereferenceable(1) @.str.16)
  call void @llvm.lifetime.start.p0(i64 16, ptr nonnull %1) #3
  %14 = tail call i32 (ptr, ...) @printf(ptr noundef nonnull dereferenceable(1) @.str.17)
  %15 = tail call i32 (ptr, ...) @printf(ptr noundef nonnull dereferenceable(1) @.str.18)
  store <2 x double> <double 9.000000e+00, double 7.000000e+00>, ptr %1, align 16, !tbaa !9
  call void @Gradienti_conjugati_nepatr(i32 noundef 2, ptr noundef nonnull @f2_paraboloid_xy, ptr noundef nonnull @f2_paraboloid_xy_Dx, ptr noundef nonnull @f2_paraboloid_xy_Dy, double noundef 0x3E7AD7F29ABCAF48, ptr noundef nonnull %1)
  call void @llvm.lifetime.end.p0(i64 16, ptr nonnull %1) #3
  br label %16

16:                                               ; preds = %12, %10
  ret i32 1
}

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

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


; Effective O3 passes: DSEPass,EarlyCSEPass,GlobalOptPass,InferFunctionAttrsPass,InstCombinePass,PostOrderFunctionAttrsPass,ReassociatePass,SLPVectorizerPass,SROAPass,SimplifyCFGPass,TailCallElimPass