; LLVM IR from QiaoLiuHit/LSOTB-TIR :: vlfeat-0.9.19/vl (mathop)

; 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

; Function Attrs: nounwind uwtable
declare dso_local i32 @vl_gaussian_elimination(ptr noundef, i64 noundef, i64 noundef) #1

; Function Attrs: nounwind uwtable
define dso_local i32 @vl_solve_linear_system_2(ptr noundef %0, ptr noundef %1, ptr noundef %2) #1 {
  %4 = alloca ptr, align 8
  %5 = alloca ptr, align 8
  %6 = alloca ptr, align 8
  %7 = alloca i32, align 4
  %8 = alloca [6 x double], align 16
  store ptr %0, ptr %4, align 8, !tbaa !5
  store ptr %1, ptr %5, align 8, !tbaa !5
  store ptr %2, ptr %6, align 8, !tbaa !5
  call void @llvm.lifetime.start.p0(i64 4, ptr %7) #2
  call void @llvm.lifetime.start.p0(i64 48, ptr %8) #2
  %9 = load ptr, ptr %5, align 8, !tbaa !5
  %10 = getelementptr inbounds double, ptr %9, i64 0
  %11 = load double, ptr %10, align 8, !tbaa !9
  %12 = getelementptr inbounds [6 x double], ptr %8, i64 0, i64 0
  store double %11, ptr %12, align 16, !tbaa !9
  %13 = load ptr, ptr %5, align 8, !tbaa !5
  %14 = getelementptr inbounds double, ptr %13, i64 1
  %15 = load double, ptr %14, align 8, !tbaa !9
  %16 = getelementptr inbounds [6 x double], ptr %8, i64 0, i64 1
  store double %15, ptr %16, align 8, !tbaa !9
  %17 = load ptr, ptr %5, align 8, !tbaa !5
  %18 = getelementptr inbounds double, ptr %17, i64 2
  %19 = load double, ptr %18, align 8, !tbaa !9
  %20 = getelementptr inbounds [6 x double], ptr %8, i64 0, i64 2
  store double %19, ptr %20, align 16, !tbaa !9
  %21 = load ptr, ptr %5, align 8, !tbaa !5
  %22 = getelementptr inbounds double, ptr %21, i64 3
  %23 = load double, ptr %22, align 8, !tbaa !9
  %24 = getelementptr inbounds [6 x double], ptr %8, i64 0, i64 3
  store double %23, ptr %24, align 8, !tbaa !9
  %25 = load ptr, ptr %6, align 8, !tbaa !5
  %26 = getelementptr inbounds double, ptr %25, i64 0
  %27 = load double, ptr %26, align 8, !tbaa !9
  %28 = getelementptr inbounds [6 x double], ptr %8, i64 0, i64 4
  store double %27, ptr %28, align 16, !tbaa !9
  %29 = load ptr, ptr %6, align 8, !tbaa !5
  %30 = getelementptr inbounds double, ptr %29, i64 1
  %31 = load double, ptr %30, align 8, !tbaa !9
  %32 = getelementptr inbounds [6 x double], ptr %8, i64 0, i64 5
  store double %31, ptr %32, align 8, !tbaa !9
  %33 = getelementptr inbounds [6 x double], ptr %8, i64 0, i64 0
  %34 = call i32 @vl_gaussian_elimination(ptr noundef %33, i64 noundef 2, i64 noundef 3)
  store i32 %34, ptr %7, align 4, !tbaa !11
  %35 = getelementptr inbounds [6 x double], ptr %8, i64 0, i64 4
  %36 = load double, ptr %35, align 16, !tbaa !9
  %37 = load ptr, ptr %4, align 8, !tbaa !5
  %38 = getelementptr inbounds double, ptr %37, i64 0
  store double %36, ptr %38, align 8, !tbaa !9
  %39 = getelementptr inbounds [6 x double], ptr %8, i64 0, i64 5
  %40 = load double, ptr %39, align 8, !tbaa !9
  %41 = load ptr, ptr %4, align 8, !tbaa !5
  %42 = getelementptr inbounds double, ptr %41, i64 1
  store double %40, ptr %42, align 8, !tbaa !9
  %43 = load i32, ptr %7, align 4, !tbaa !11
  call void @llvm.lifetime.end.p0(i64 48, ptr %8) #2
  call void @llvm.lifetime.end.p0(i64 4, ptr %7) #2
  ret i32 %43
}

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 = { 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}
!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: nounwind uwtable
declare dso_local i32 @vl_gaussian_elimination(ptr noundef, i64 noundef, i64 noundef) local_unnamed_addr #1

; Function Attrs: nounwind uwtable
define dso_local i32 @vl_solve_linear_system_2(ptr nocapture noundef writeonly %0, ptr nocapture noundef readonly %1, ptr nocapture noundef readonly %2) local_unnamed_addr #1 {
  %4 = alloca [6 x double], align 16
  call void @llvm.lifetime.start.p0(i64 48, ptr nonnull %4) #2
  %5 = load <2 x double>, ptr %1, align 8, !tbaa !5
  store <2 x double> %5, ptr %4, align 16, !tbaa !5
  %6 = getelementptr inbounds i8, ptr %1, i64 16
  %7 = getelementptr inbounds i8, ptr %4, i64 16
  %8 = load <2 x double>, ptr %6, align 8, !tbaa !5
  store <2 x double> %8, ptr %7, align 16, !tbaa !5
  %9 = getelementptr inbounds i8, ptr %4, i64 32
  %10 = load <2 x double>, ptr %2, align 8, !tbaa !5
  store <2 x double> %10, ptr %9, align 16, !tbaa !5
  %11 = call i32 @vl_gaussian_elimination(ptr noundef nonnull %4, i64 noundef 2, i64 noundef 3)
  %12 = load <2 x double>, ptr %9, align 16, !tbaa !5
  store <2 x double> %12, ptr %0, align 8, !tbaa !5
  call void @llvm.lifetime.end.p0(i64 48, ptr nonnull %4) #2
  ret i32 %11
}

attributes #0 = { mustprogress 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 = { 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 = !{!"double", !7, i64 0}
!7 = !{!"omnipotent char", !8, i64 0}
!8 = !{!"Simple C/C++ TBAA"}


; Effective O3 passes: EarlyCSEPass,GlobalOptPass,InferFunctionAttrsPass,InstCombinePass,PostOrderFunctionAttrsPass,SLPVectorizerPass,SROAPass