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1; RUN: opt -mtriple=thumbv8.1m.main -mve-tail-predication -tail-predication=enabled -mattr=+mve,+lob %s -S -o - | FileCheck %s2 3; TODO: The unrolled pattern is preventing the transform4; CHECK-LABEL: mul_v16i8_unroll5; CHECK-NOT: call i32 @llvm.arm.vcpt6define void @mul_v16i8_unroll(ptr noalias nocapture readonly %a, ptr noalias nocapture readonly %b, ptr noalias nocapture %c, i32 %N) {7entry:8 %cmp8 = icmp eq i32 %N, 09 %tmp8 = add i32 %N, 1510 %tmp9 = lshr i32 %tmp8, 411 %tmp10 = shl nuw i32 %tmp9, 412 %tmp11 = add i32 %tmp10, -1613 %tmp12 = lshr i32 %tmp11, 414 %tmp13 = add nuw nsw i32 %tmp12, 115 br i1 %cmp8, label %for.cond.cleanup, label %vector.ph16 17vector.ph: ; preds = %entry18 %trip.count.minus.1 = add i32 %N, -119 %broadcast.splatinsert10 = insertelement <16 x i32> undef, i32 %trip.count.minus.1, i32 020 %broadcast.splat11 = shufflevector <16 x i32> %broadcast.splatinsert10, <16 x i32> undef, <16 x i32> zeroinitializer21 %xtraiter = and i32 %tmp13, 122 %0 = icmp ult i32 %tmp12, 123 br i1 %0, label %for.cond.cleanup.loopexit.unr-lcssa, label %vector.ph.new24 25vector.ph.new: ; preds = %vector.ph26 %start = call i32 @llvm.start.loop.iterations.i32(i32 %tmp13)27 %unroll_iter = sub i32 %tmp13, %xtraiter28 br label %vector.body29 30vector.body: ; preds = %vector.body, %vector.ph.new31 %index = phi i32 [ 0, %vector.ph.new ], [ %index.next.1, %vector.body ]32 %niter = phi i32 [ %unroll_iter, %vector.ph.new ], [ %niter.nsub.1, %vector.body ]33 %broadcast.splatinsert = insertelement <16 x i32> undef, i32 %index, i32 034 %broadcast.splat = shufflevector <16 x i32> %broadcast.splatinsert, <16 x i32> undef, <16 x i32> zeroinitializer35 %induction = add <16 x i32> %broadcast.splat, <i32 0, i32 1, i32 2, i32 3, i32 4, i32 5, i32 6, i32 7, i32 8, i32 9, i32 10, i32 11, i32 12, i32 13, i32 14, i32 15>36 %tmp = getelementptr inbounds i8, ptr %a, i32 %index37 %tmp1 = icmp ule <16 x i32> %induction, %broadcast.splat1138 %wide.masked.load = tail call <16 x i8> @llvm.masked.load.v16i8.p0(ptr %tmp, i32 4, <16 x i1> %tmp1, <16 x i8> undef)39 %tmp3 = getelementptr inbounds i8, ptr %b, i32 %index40 %wide.masked.load2 = tail call <16 x i8> @llvm.masked.load.v16i8.p0(ptr %tmp3, i32 4, <16 x i1> %tmp1, <16 x i8> undef)41 %mul = mul nsw <16 x i8> %wide.masked.load2, %wide.masked.load42 %tmp6 = getelementptr inbounds i8, ptr %c, i32 %index43 tail call void @llvm.masked.store.v16i8.p0(<16 x i8> %mul, ptr %tmp6, i32 4, <16 x i1> %tmp1)44 %index.next = add nuw nsw i32 %index, 1645 %niter.nsub = sub i32 %niter, 146 %broadcast.splatinsert.1 = insertelement <16 x i32> undef, i32 %index.next, i32 047 %broadcast.splat.1 = shufflevector <16 x i32> %broadcast.splatinsert.1, <16 x i32> undef, <16 x i32> zeroinitializer48 %induction.1 = add <16 x i32> %broadcast.splat.1, <i32 0, i32 1, i32 2, i32 3, i32 4, i32 5, i32 6, i32 7, i32 8, i32 9, i32 10, i32 11, i32 12, i32 13, i32 14, i32 15>49 %tmp.1 = getelementptr inbounds i8, ptr %a, i32 %index.next50 %tmp1.1 = icmp ule <16 x i32> %induction.1, %broadcast.splat1151 %wide.masked.load.1 = tail call <16 x i8> @llvm.masked.load.v16i8.p0(ptr %tmp.1, i32 4, <16 x i1> %tmp1.1, <16 x i8> undef)52 %tmp3.1 = getelementptr inbounds i8, ptr %b, i32 %index.next53 %wide.masked.load2.1 = tail call <16 x i8> @llvm.masked.load.v16i8.p0(ptr %tmp3.1, i32 4, <16 x i1> %tmp1.1, <16 x i8> undef)54 %mul.1 = mul nsw <16 x i8> %wide.masked.load2.1, %wide.masked.load.155 %tmp6.1 = getelementptr inbounds i8, ptr %c, i32 %index.next56 tail call void @llvm.masked.store.v16i8.p0(<16 x i8> %mul.1, ptr %tmp6.1, i32 4, <16 x i1> %tmp1.1)57 %index.next.1 = add i32 %index.next, 1658 %niter.nsub.1 = call i32 @llvm.loop.decrement.reg.i32.i32.i32(i32 %niter.nsub, i32 1)59 %niter.ncmp.1 = icmp ne i32 %niter.nsub.1, 060 br i1 %niter.ncmp.1, label %vector.body, label %for.cond.cleanup.loopexit.unr-lcssa.loopexit61 62for.cond.cleanup.loopexit.unr-lcssa.loopexit: ; preds = %vector.body63 %index.unr.ph = phi i32 [ %index.next.1, %vector.body ]64 %tmp14.unr.ph = phi i32 [ -2, %vector.body ]65 br label %for.cond.cleanup.loopexit.unr-lcssa66 67for.cond.cleanup.loopexit.unr-lcssa: ; preds = %for.cond.cleanup.loopexit.unr-lcssa.loopexit, %vector.ph68 %index.unr = phi i32 [ 0, %vector.ph ], [ %index.unr.ph, %for.cond.cleanup.loopexit.unr-lcssa.loopexit ]69 %tmp14.unr = phi i32 [ %tmp13, %vector.ph ], [ %tmp14.unr.ph, %for.cond.cleanup.loopexit.unr-lcssa.loopexit ]70 %lcmp.mod = icmp ne i32 %xtraiter, 071 br i1 %lcmp.mod, label %vector.body.epil.preheader, label %for.cond.cleanup.loopexit72 73vector.body.epil.preheader: ; preds = %for.cond.cleanup.loopexit.unr-lcssa74 br label %vector.body.epil75 76vector.body.epil: ; preds = %vector.body.epil.preheader77 %index.epil = phi i32 [ %index.unr, %vector.body.epil.preheader ]78 %tmp14.epil = phi i32 [ %tmp14.unr, %vector.body.epil.preheader ]79 %broadcast.splatinsert.epil = insertelement <16 x i32> undef, i32 %index.epil, i32 080 %broadcast.splat.epil = shufflevector <16 x i32> %broadcast.splatinsert.epil, <16 x i32> undef, <16 x i32> zeroinitializer81 %induction.epil = add <16 x i32> %broadcast.splat.epil, <i32 0, i32 1, i32 2, i32 3, i32 4, i32 5, i32 6, i32 7, i32 8, i32 9, i32 10, i32 11, i32 12, i32 13, i32 14, i32 15>82 %tmp.epil = getelementptr inbounds i8, ptr %a, i32 %index.epil83 %tmp1.epil = icmp ule <16 x i32> %induction.epil, %broadcast.splat1184 %wide.masked.load.epil = tail call <16 x i8> @llvm.masked.load.v16i8.p0(ptr %tmp.epil, i32 4, <16 x i1> %tmp1.epil, <16 x i8> undef)85 %tmp3.epil = getelementptr inbounds i8, ptr %b, i32 %index.epil86 %wide.masked.load2.epil = tail call <16 x i8> @llvm.masked.load.v16i8.p0(ptr %tmp3.epil, i32 4, <16 x i1> %tmp1.epil, <16 x i8> undef)87 %mul.epil = mul nsw <16 x i8> %wide.masked.load2.epil, %wide.masked.load.epil88 %tmp6.epil = getelementptr inbounds i8, ptr %c, i32 %index.epil89 tail call void @llvm.masked.store.v16i8.p0(<16 x i8> %mul.epil, ptr %tmp6.epil, i32 4, <16 x i1> %tmp1.epil)90 %index.next.epil = add i32 %index.epil, 1691 %tmp15.epil = add nuw nsw i32 %tmp14.epil, -192 %tmp16.epil = icmp ne i32 %tmp15.epil, 093 br label %for.cond.cleanup.loopexit.epilog-lcssa94 95for.cond.cleanup.loopexit.epilog-lcssa: ; preds = %vector.body.epil96 br label %for.cond.cleanup.loopexit97 98for.cond.cleanup.loopexit: ; preds = %for.cond.cleanup.loopexit.unr-lcssa, %for.cond.cleanup.loopexit.epilog-lcssa99 br label %for.cond.cleanup100 101for.cond.cleanup: ; preds = %for.cond.cleanup.loopexit, %entry102 ret void103}104 105declare <16 x i8> @llvm.masked.load.v16i8.p0(ptr, i32 immarg, <16 x i1>, <16 x i8>) #1106declare void @llvm.masked.store.v16i8.p0(<16 x i8>, ptr, i32 immarg, <16 x i1>) #2107declare i32 @llvm.start.loop.iterations.i32(i32) #3108declare i32 @llvm.loop.decrement.reg.i32.i32.i32(i32, i32) #3109 110