; LLVM IR from siconos/siconos :: externals/SOL/lumod-c (commonlib)

; 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: nounwind uwtable
define dso_local i32 @intpow(i32 noundef %0, i32 noundef %1) #0 {
  %3 = alloca i32, align 4
  %4 = alloca i32, align 4
  %5 = alloca i32, align 4
  store i32 %0, ptr %3, align 4, !tbaa !5
  store i32 %1, ptr %4, align 4, !tbaa !5
  call void @llvm.lifetime.start.p0(i64 4, ptr %5) #2
  store i32 1, ptr %5, align 4, !tbaa !5
  br label %6

6:                                                ; preds = %9, %2
  %7 = load i32, ptr %4, align 4, !tbaa !5
  %8 = icmp sgt i32 %7, 0
  br i1 %8, label %9, label %15

9:                                                ; preds = %6
  %10 = load i32, ptr %3, align 4, !tbaa !5
  %11 = load i32, ptr %5, align 4, !tbaa !5
  %12 = mul nsw i32 %11, %10
  store i32 %12, ptr %5, align 4, !tbaa !5
  %13 = load i32, ptr %4, align 4, !tbaa !5
  %14 = add nsw i32 %13, -1
  store i32 %14, ptr %4, align 4, !tbaa !5
  br label %6, !llvm.loop !9

15:                                               ; preds = %6
  br label %16

16:                                               ; preds = %19, %15
  %17 = load i32, ptr %4, align 4, !tbaa !5
  %18 = icmp slt i32 %17, 0
  br i1 %18, label %19, label %25

19:                                               ; preds = %16
  %20 = load i32, ptr %3, align 4, !tbaa !5
  %21 = load i32, ptr %5, align 4, !tbaa !5
  %22 = sdiv i32 %21, %20
  store i32 %22, ptr %5, align 4, !tbaa !5
  %23 = load i32, ptr %4, align 4, !tbaa !5
  %24 = add nsw i32 %23, 1
  store i32 %24, ptr %4, align 4, !tbaa !5
  br label %16, !llvm.loop !11

25:                                               ; preds = %16
  %26 = load i32, ptr %5, align 4, !tbaa !5
  call void @llvm.lifetime.end.p0(i64 4, ptr %5) #2
  ret i32 %26
}

; Function Attrs: nocallback nofree nosync nounwind willreturn memory(argmem: readwrite)
declare void @llvm.lifetime.start.p0(i64 immarg, ptr nocapture) #1

; Function Attrs: nocallback nofree nosync nounwind willreturn memory(argmem: readwrite)
declare void @llvm.lifetime.end.p0(i64 immarg, ptr nocapture) #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 = { nocallback nofree nosync nounwind willreturn memory(argmem: readwrite) }
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 = !{!"int", !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, !10}


; 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 norecurse nosync nounwind memory(none) uwtable
define dso_local i32 @intpow(i32 noundef %0, i32 noundef %1) local_unnamed_addr #0 {
  %3 = icmp sgt i32 %1, 0
  br i1 %3, label %.lr.ph.preheader, label %.preheader

.lr.ph.preheader:                                 ; preds = %2
  %min.iters.check = icmp ult i32 %1, 8
  br i1 %min.iters.check, label %.lr.ph, label %vector.ph

vector.ph:                                        ; preds = %.lr.ph.preheader
  %n.vec = and i32 %1, 2147483640
  %ind.end = and i32 %1, 7
  %broadcast.splatinsert = insertelement <4 x i32> poison, i32 %0, i64 0
  %broadcast.splat = shufflevector <4 x i32> %broadcast.splatinsert, <4 x i32> poison, <4 x i32> zeroinitializer
  br label %vector.body

vector.body:                                      ; preds = %vector.body, %vector.ph
  %index = phi i32 [ 0, %vector.ph ], [ %index.next, %vector.body ]
  %vec.phi = phi <4 x i32> [ <i32 1, i32 1, i32 1, i32 1>, %vector.ph ], [ %4, %vector.body ]
  %vec.phi26 = phi <4 x i32> [ <i32 1, i32 1, i32 1, i32 1>, %vector.ph ], [ %5, %vector.body ]
  %4 = mul <4 x i32> %vec.phi, %broadcast.splat
  %5 = mul <4 x i32> %vec.phi26, %broadcast.splat
  %index.next = add nuw i32 %index, 8
  %6 = icmp eq i32 %index.next, %n.vec
  br i1 %6, label %middle.block, label %vector.body, !llvm.loop !5

middle.block:                                     ; preds = %vector.body
  %bin.rdx = mul <4 x i32> %5, %4
  %7 = tail call i32 @llvm.vector.reduce.mul.v4i32(<4 x i32> %bin.rdx)
  %cmp.n = icmp eq i32 %n.vec, %1
  br i1 %cmp.n, label %._crit_edge, label %.lr.ph

.preheader:                                       ; preds = %2
  %8 = icmp slt i32 %1, 0
  br i1 %8, label %.lr.ph16.preheader, label %._crit_edge

.lr.ph16.preheader:                               ; preds = %.preheader
  %9 = sub i32 0, %1
  %xtraiter = and i32 %9, 3
  %10 = icmp ugt i32 %1, -4
  br i1 %10, label %._crit_edge.loopexit30.unr-lcssa, label %.lr.ph16.preheader.new

.lr.ph16.preheader.new:                           ; preds = %.lr.ph16.preheader
  %unroll_iter = and i32 %9, -4
  br label %.lr.ph16

.lr.ph:                                           ; preds = %.lr.ph.preheader, %middle.block
  %.012.ph = phi i32 [ 1, %.lr.ph.preheader ], [ %7, %middle.block ]
  %.0911.ph = phi i32 [ %1, %.lr.ph.preheader ], [ %ind.end, %middle.block ]
  %11 = mul nsw i32 %.012.ph, %0
  %12 = icmp ugt i32 %.0911.ph, 1
  br i1 %12, label %.lr.ph.1, label %._crit_edge, !llvm.loop !9

.lr.ph.1:                                         ; preds = %.lr.ph
  %13 = mul nsw i32 %11, %0
  %14 = add nsw i32 %.0911.ph, -3
  %15 = icmp ult i32 %14, -2
  br i1 %15, label %.lr.ph.2, label %._crit_edge, !llvm.loop !9

.lr.ph.2:                                         ; preds = %.lr.ph.1
  %16 = mul nsw i32 %13, %0
  %17 = and i32 %.0911.ph, 6
  %.not = icmp eq i32 %17, 2
  br i1 %.not, label %._crit_edge, label %.lr.ph.3, !llvm.loop !9

.lr.ph.3:                                         ; preds = %.lr.ph.2
  %18 = mul nsw i32 %16, %0
  %19 = add nsw i32 %.0911.ph, -5
  %20 = icmp ult i32 %19, -2
  br i1 %20, label %.lr.ph.4, label %._crit_edge, !llvm.loop !9

.lr.ph.4:                                         ; preds = %.lr.ph.3
  %21 = mul nsw i32 %18, %0
  %22 = and i32 %.0911.ph, 6
  %.not33 = icmp eq i32 %22, 4
  br i1 %.not33, label %._crit_edge, label %.lr.ph.5, !llvm.loop !9

.lr.ph.5:                                         ; preds = %.lr.ph.4
  %23 = mul nsw i32 %21, %0
  %24 = add nsw i32 %.0911.ph, -7
  %25 = icmp ult i32 %24, -2
  %26 = mul nsw i32 %23, %0
  %spec.select = select i1 %25, i32 %26, i32 %23
  br label %._crit_edge, !llvm.loop !9

.lr.ph16:                                         ; preds = %.lr.ph16, %.lr.ph16.preheader.new
  %.115 = phi i32 [ 1, %.lr.ph16.preheader.new ], [ %30, %.lr.ph16 ]
  %niter = phi i32 [ 0, %.lr.ph16.preheader.new ], [ %niter.next.3, %.lr.ph16 ]
  %27 = sdiv i32 %.115, %0
  %28 = sdiv i32 %27, %0
  %29 = sdiv i32 %28, %0
  %30 = sdiv i32 %29, %0
  %niter.next.3 = add i32 %niter, 4
  %niter.ncmp.3 = icmp eq i32 %niter.next.3, %unroll_iter
  br i1 %niter.ncmp.3, label %._crit_edge.loopexit30.unr-lcssa, label %.lr.ph16, !llvm.loop !10

._crit_edge.loopexit30.unr-lcssa:                 ; preds = %.lr.ph16, %.lr.ph16.preheader
  %.lcssa31.ph = phi i32 [ poison, %.lr.ph16.preheader ], [ %30, %.lr.ph16 ]
  %.115.unr = phi i32 [ 1, %.lr.ph16.preheader ], [ %30, %.lr.ph16 ]
  %lcmp.mod.not = icmp eq i32 %xtraiter, 0
  br i1 %lcmp.mod.not, label %._crit_edge, label %.lr.ph16.epil

.lr.ph16.epil:                                    ; preds = %._crit_edge.loopexit30.unr-lcssa, %.lr.ph16.epil
  %.115.epil = phi i32 [ %31, %.lr.ph16.epil ], [ %.115.unr, %._crit_edge.loopexit30.unr-lcssa ]
  %epil.iter = phi i32 [ %epil.iter.next, %.lr.ph16.epil ], [ 0, %._crit_edge.loopexit30.unr-lcssa ]
  %31 = sdiv i32 %.115.epil, %0
  %epil.iter.next = add i32 %epil.iter, 1
  %epil.iter.cmp.not = icmp eq i32 %epil.iter.next, %xtraiter
  br i1 %epil.iter.cmp.not, label %._crit_edge, label %.lr.ph16.epil, !llvm.loop !11

._crit_edge:                                      ; preds = %.lr.ph.5, %._crit_edge.loopexit30.unr-lcssa, %.lr.ph16.epil, %.lr.ph, %.lr.ph.1, %.lr.ph.2, %.lr.ph.3, %.lr.ph.4, %middle.block, %.preheader
  %.1.lcssa = phi i32 [ 1, %.preheader ], [ %7, %middle.block ], [ %11, %.lr.ph ], [ %13, %.lr.ph.1 ], [ %16, %.lr.ph.2 ], [ %18, %.lr.ph.3 ], [ %21, %.lr.ph.4 ], [ %spec.select, %.lr.ph.5 ], [ %.lcssa31.ph, %._crit_edge.loopexit30.unr-lcssa ], [ %31, %.lr.ph16.epil ]
  ret i32 %.1.lcssa
}

; Function Attrs: nocallback nofree nosync nounwind speculatable willreturn memory(none)
declare i32 @llvm.vector.reduce.mul.v4i32(<4 x i32>) #1

attributes #0 = { nofree norecurse nosync nounwind memory(none) 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 = { nocallback nofree nosync nounwind speculatable willreturn memory(none) }

!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 = distinct !{!5, !6, !7, !8}
!6 = !{!"llvm.loop.mustprogress"}
!7 = !{!"llvm.loop.isvectorized", i32 1}
!8 = !{!"llvm.loop.unroll.runtime.disable"}
!9 = distinct !{!9, !6, !8, !7}
!10 = distinct !{!10, !6}
!11 = distinct !{!11, !12}
!12 = !{!"llvm.loop.unroll.disable"}


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