; LLVM IR from ekoontz/graphlab :: src/graphlab/extern/metis/GKlib (blas)

; 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
declare double @sqrt(double noundef) #1

; Function Attrs: nounwind uwtable
define dso_local float @gk_fnorm2(i64 noundef %0, ptr noundef %1, i64 noundef %2) #2 {
  %4 = alloca i64, align 8
  %5 = alloca ptr, align 8
  %6 = alloca i64, align 8
  %7 = alloca i64, align 8
  %8 = alloca float, align 4
  store i64 %0, ptr %4, align 8, !tbaa !5
  store ptr %1, ptr %5, align 8, !tbaa !9
  store i64 %2, ptr %6, align 8, !tbaa !5
  call void @llvm.lifetime.start.p0(i64 8, ptr %7) #4
  call void @llvm.lifetime.start.p0(i64 4, ptr %8) #4
  store float 0.000000e+00, ptr %8, align 4, !tbaa !11
  store i64 0, ptr %7, align 8, !tbaa !5
  br label %9

9:                                                ; preds = %20, %3
  %10 = load i64, ptr %7, align 8, !tbaa !5
  %11 = load i64, ptr %4, align 8, !tbaa !5
  %12 = icmp ult i64 %10, %11
  br i1 %12, label %13, label %26

13:                                               ; preds = %9
  %14 = load ptr, ptr %5, align 8, !tbaa !9
  %15 = load float, ptr %14, align 4, !tbaa !11
  %16 = load ptr, ptr %5, align 8, !tbaa !9
  %17 = load float, ptr %16, align 4, !tbaa !11
  %18 = load float, ptr %8, align 4, !tbaa !11
  %19 = call float @llvm.fmuladd.f32(float %15, float %17, float %18)
  store float %19, ptr %8, align 4, !tbaa !11
  br label %20

20:                                               ; preds = %13
  %21 = load i64, ptr %7, align 8, !tbaa !5
  %22 = add i64 %21, 1
  store i64 %22, ptr %7, align 8, !tbaa !5
  %23 = load i64, ptr %6, align 8, !tbaa !5
  %24 = load ptr, ptr %5, align 8, !tbaa !9
  %25 = getelementptr inbounds float, ptr %24, i64 %23
  store ptr %25, ptr %5, align 8, !tbaa !9
  br label %9, !llvm.loop !13

26:                                               ; preds = %9
  %27 = load float, ptr %8, align 4, !tbaa !11
  %28 = fcmp ogt float %27, 0.000000e+00
  br i1 %28, label %29, label %35

29:                                               ; preds = %26
  %30 = load float, ptr %8, align 4, !tbaa !11
  %31 = fpext float %30 to double
  %32 = call double @sqrt(double noundef %31) #4
  %33 = fptrunc double %32 to float
  %34 = fpext float %33 to double
  br label %36

35:                                               ; preds = %26
  br label %36

36:                                               ; preds = %35, %29
  %37 = phi double [ %34, %29 ], [ 0.000000e+00, %35 ]
  %38 = fptrunc double %37 to float
  call void @llvm.lifetime.end.p0(i64 4, ptr %8) #4
  call void @llvm.lifetime.end.p0(i64 8, ptr %7) #4
  ret float %38
}

; Function Attrs: nocallback nofree nosync nounwind speculatable willreturn memory(none)
declare float @llvm.fmuladd.f32(float, float, float) #3

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 = { 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 #3 = { nocallback nofree nosync nounwind speculatable willreturn memory(none) }
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 = !{!"long", !7, i64 0}
!7 = !{!"omnipotent char", !8, i64 0}
!8 = !{!"Simple C/C++ TBAA"}
!9 = !{!10, !10, i64 0}
!10 = !{!"any pointer", !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"

; Function Attrs: nofree nounwind memory(readwrite, inaccessiblemem: write) uwtable
define dso_local float @gk_fnorm2(i64 noundef %0, ptr nocapture noundef readonly %1, i64 noundef %2) local_unnamed_addr #0 {
  %.not = icmp eq i64 %0, 0
  br i1 %.not, label %._crit_edge.thread, label %.lr.ph.preheader

.lr.ph.preheader:                                 ; preds = %3
  %xtraiter = and i64 %0, 3
  %4 = icmp ult i64 %0, 4
  br i1 %4, label %._crit_edge.unr-lcssa, label %.lr.ph.preheader.new

.lr.ph.preheader.new:                             ; preds = %.lr.ph.preheader
  %unroll_iter = and i64 %0, -4
  br label %.lr.ph

.lr.ph:                                           ; preds = %.lr.ph, %.lr.ph.preheader.new
  %.013 = phi float [ 0.000000e+00, %.lr.ph.preheader.new ], [ %15, %.lr.ph ]
  %.01011 = phi ptr [ %1, %.lr.ph.preheader.new ], [ %16, %.lr.ph ]
  %niter = phi i64 [ 0, %.lr.ph.preheader.new ], [ %niter.next.3, %.lr.ph ]
  %5 = load float, ptr %.01011, align 4, !tbaa !5
  %6 = tail call float @llvm.fmuladd.f32(float %5, float %5, float %.013)
  %7 = getelementptr inbounds float, ptr %.01011, i64 %2
  %8 = load float, ptr %7, align 4, !tbaa !5
  %9 = tail call float @llvm.fmuladd.f32(float %8, float %8, float %6)
  %10 = getelementptr inbounds float, ptr %7, i64 %2
  %11 = load float, ptr %10, align 4, !tbaa !5
  %12 = tail call float @llvm.fmuladd.f32(float %11, float %11, float %9)
  %13 = getelementptr inbounds float, ptr %10, i64 %2
  %14 = load float, ptr %13, align 4, !tbaa !5
  %15 = tail call float @llvm.fmuladd.f32(float %14, float %14, float %12)
  %16 = getelementptr inbounds float, ptr %13, i64 %2
  %niter.next.3 = add i64 %niter, 4
  %niter.ncmp.3 = icmp eq i64 %niter.next.3, %unroll_iter
  br i1 %niter.ncmp.3, label %._crit_edge.unr-lcssa, label %.lr.ph, !llvm.loop !9

._crit_edge.unr-lcssa:                            ; preds = %.lr.ph, %.lr.ph.preheader
  %.lcssa.ph = phi float [ poison, %.lr.ph.preheader ], [ %15, %.lr.ph ]
  %.013.unr = phi float [ 0.000000e+00, %.lr.ph.preheader ], [ %15, %.lr.ph ]
  %.01011.unr = phi ptr [ %1, %.lr.ph.preheader ], [ %16, %.lr.ph ]
  %lcmp.mod.not = icmp eq i64 %xtraiter, 0
  br i1 %lcmp.mod.not, label %._crit_edge, label %.lr.ph.epil

.lr.ph.epil:                                      ; preds = %._crit_edge.unr-lcssa, %.lr.ph.epil
  %.013.epil = phi float [ %18, %.lr.ph.epil ], [ %.013.unr, %._crit_edge.unr-lcssa ]
  %.01011.epil = phi ptr [ %19, %.lr.ph.epil ], [ %.01011.unr, %._crit_edge.unr-lcssa ]
  %epil.iter = phi i64 [ %epil.iter.next, %.lr.ph.epil ], [ 0, %._crit_edge.unr-lcssa ]
  %17 = load float, ptr %.01011.epil, align 4, !tbaa !5
  %18 = tail call float @llvm.fmuladd.f32(float %17, float %17, float %.013.epil)
  %19 = getelementptr inbounds float, ptr %.01011.epil, i64 %2
  %epil.iter.next = add i64 %epil.iter, 1
  %epil.iter.cmp.not = icmp eq i64 %epil.iter.next, %xtraiter
  br i1 %epil.iter.cmp.not, label %._crit_edge, label %.lr.ph.epil, !llvm.loop !11

._crit_edge:                                      ; preds = %.lr.ph.epil, %._crit_edge.unr-lcssa
  %.lcssa = phi float [ %.lcssa.ph, %._crit_edge.unr-lcssa ], [ %18, %.lr.ph.epil ]
  %20 = fcmp ogt float %.lcssa, 0.000000e+00
  br i1 %20, label %21, label %._crit_edge.thread

21:                                               ; preds = %._crit_edge
  %sqrtf = tail call float @sqrtf(float noundef %.lcssa) #2
  br label %._crit_edge.thread

._crit_edge.thread:                               ; preds = %3, %._crit_edge, %21
  %22 = phi float [ %sqrtf, %21 ], [ 0.000000e+00, %._crit_edge ], [ 0.000000e+00, %3 ]
  ret float %22
}

; Function Attrs: mustprogress nocallback nofree nosync nounwind speculatable willreturn memory(none)
declare float @llvm.fmuladd.f32(float, float, float) #1

declare float @sqrtf(float) local_unnamed_addr

attributes #0 = { nofree nounwind memory(readwrite, inaccessiblemem: write) 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 = { mustprogress nocallback nofree nosync nounwind speculatable willreturn memory(none) }
attributes #2 = { mustprogress nofree nounwind willreturn memory(write) "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" }

!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"}
!11 = distinct !{!11, !12}
!12 = !{!"llvm.loop.unroll.disable"}


; Effective O3 passes: CorrelatedValuePropagationPass,EarlyCSEPass,GVNPass,GlobalOptPass,IndVarSimplifyPass,InferFunctionAttrsPass,InstCombinePass,InstSimplifyPass,JumpThreadingPass,LCSSAPass,LoopRotatePass,LoopSimplifyPass,LoopUnrollPass,PostOrderFunctionAttrsPass,SROAPass,SimplifyCFGPass,TailCallElimPass