| ; RUN: opt -mtriple=thumbv8.1m.main -mve-tail-predication -disable-mve-tail-predication=false -mattr=+mve %s -S -o - | FileCheck %s |
| |
| ; CHECK-LABEL: reduction_i32 |
| ; CHECK: phi i32 [ 0, %entry ] |
| ; CHECK: phi <8 x i16> [ zeroinitializer, %entry ] |
| ; CHECK: phi i32 |
| ; CHECK: [[PHI:%[^ ]+]] = phi i32 [ %N, %entry ], [ [[ELEMS:%[^ ]+]], %vector.body ] |
| ; CHECK: [[VCTP:%[^ ]+]] = call <8 x i1> @llvm.arm.vctp16(i32 [[PHI]]) |
| ; CHECK: [[ELEMS]] = sub i32 [[PHI]], 8 |
| ; CHECK: call <8 x i16> @llvm.masked.load.v8i16.p0v8i16(<8 x i16>* %tmp4, i32 4, <8 x i1> [[VCTP]], <8 x i16> undef) |
| ; CHECK: call <8 x i16> @llvm.masked.load.v8i16.p0v8i16(<8 x i16>* %tmp6, i32 4, <8 x i1> [[VCTP]], <8 x i16> undef) |
| define i16 @reduction_i32(i16* nocapture readonly %A, i16* nocapture readonly %B, i32 %N) { |
| entry: |
| %tmp = add i32 %N, -1 |
| %n.rnd.up = add nuw nsw i32 %tmp, 8 |
| %n.vec = and i32 %n.rnd.up, -8 |
| %broadcast.splatinsert1 = insertelement <8 x i32> undef, i32 %tmp, i32 0 |
| %broadcast.splat2 = shufflevector <8 x i32> %broadcast.splatinsert1, <8 x i32> undef, <8 x i32> zeroinitializer |
| %0 = add i32 %n.vec, -8 |
| %1 = lshr i32 %0, 3 |
| %2 = add nuw nsw i32 %1, 1 |
| call void @llvm.set.loop.iterations.i32(i32 %2) |
| br label %vector.body |
| |
| vector.body: ; preds = %vector.body, %entry |
| %index = phi i32 [ 0, %entry ], [ %index.next, %vector.body ] |
| %vec.phi = phi <8 x i16> [ zeroinitializer, %entry ], [ %tmp8, %vector.body ] |
| %3 = phi i32 [ %2, %entry ], [ %4, %vector.body ] |
| %broadcast.splatinsert = insertelement <8 x i32> undef, i32 %index, i32 0 |
| %broadcast.splat = shufflevector <8 x i32> %broadcast.splatinsert, <8 x i32> undef, <8 x i32> zeroinitializer |
| %induction = add <8 x i32> %broadcast.splat, <i32 0, i32 1, i32 2, i32 3, i32 4, i32 5, i32 6, i32 7> |
| %tmp2 = getelementptr inbounds i16, i16* %A, i32 %index |
| %tmp3 = icmp ule <8 x i32> %induction, %broadcast.splat2 |
| %tmp4 = bitcast i16* %tmp2 to <8 x i16>* |
| %wide.masked.load = call <8 x i16> @llvm.masked.load.v8i16.p0v8i16(<8 x i16>* %tmp4, i32 4, <8 x i1> %tmp3, <8 x i16> undef) |
| %tmp5 = getelementptr inbounds i16, i16* %B, i32 %index |
| %tmp6 = bitcast i16* %tmp5 to <8 x i16>* |
| %wide.masked.load3 = call <8 x i16> @llvm.masked.load.v8i16.p0v8i16(<8 x i16>* %tmp6, i32 4, <8 x i1> %tmp3, <8 x i16> undef) |
| %tmp7 = add <8 x i16> %wide.masked.load, %vec.phi |
| %tmp8 = add <8 x i16> %tmp7, %wide.masked.load3 |
| %index.next = add nuw nsw i32 %index, 8 |
| %4 = call i32 @llvm.loop.decrement.reg.i32.i32.i32(i32 %3, i32 1) |
| %5 = icmp ne i32 %4, 0 |
| br i1 %5, label %vector.body, label %middle.block |
| |
| middle.block: ; preds = %vector.body |
| %vec.phi.lcssa = phi <8 x i16> [ %vec.phi, %vector.body ] |
| %.lcssa3 = phi <8 x i1> [ %tmp3, %vector.body ] |
| %.lcssa = phi <8 x i16> [ %tmp8, %vector.body ] |
| %tmp10 = select <8 x i1> %.lcssa3, <8 x i16> %.lcssa, <8 x i16> %vec.phi.lcssa |
| %rdx.shuf = shufflevector <8 x i16> %tmp10, <8 x i16> undef, <8 x i32> <i32 4, i32 5, i32 6, i32 7, i32 undef, i32 undef, i32 undef, i32 undef> |
| %bin.rdx = add <8 x i16> %rdx.shuf, %tmp10 |
| %rdx.shuf4 = shufflevector <8 x i16> %bin.rdx, <8 x i16> undef, <8 x i32> <i32 2, i32 3, i32 undef, i32 undef, i32 undef, i32 undef, i32 undef, i32 undef> |
| %bin.rdx5 = add <8 x i16> %rdx.shuf4, %bin.rdx |
| %rdx.shuf6 = shufflevector <8 x i16> %bin.rdx5, <8 x i16> undef, <8 x i32> <i32 1, i32 undef, i32 undef, i32 undef, i32 undef, i32 undef, i32 undef, i32 undef> |
| %bin.rdx7 = add <8 x i16> %rdx.shuf6, %bin.rdx5 |
| %tmp11 = extractelement <8 x i16> %bin.rdx7, i32 0 |
| ret i16 %tmp11 |
| } |
| |
| ; CHECK-LABEL: reduction_i32_with_scalar |
| ; CHECK: phi i32 [ 0, %entry ] |
| ; CHECK: phi <8 x i16> [ zeroinitializer, %entry ] |
| ; CHECK: phi i32 |
| ; CHECK: [[PHI:%[^ ]+]] = phi i32 [ %N, %entry ], [ [[ELEMS:%[^ ]+]], %vector.body ] |
| ; CHECK: [[VCTP:%[^ ]+]] = call <8 x i1> @llvm.arm.vctp16(i32 [[PHI]]) |
| ; CHECK: [[ELEMS]] = sub i32 [[PHI]], 8 |
| ; CHECK: call <8 x i16> @llvm.masked.load.v8i16.p0v8i16(<8 x i16>* %tmp4, i32 4, <8 x i1> [[VCTP]], <8 x i16> undef) |
| define i16 @reduction_i32_with_scalar(i16* nocapture readonly %A, i16 %B, i32 %N) local_unnamed_addr { |
| entry: |
| %tmp = add i32 %N, -1 |
| %n.rnd.up = add nuw nsw i32 %tmp, 8 |
| %n.vec = and i32 %n.rnd.up, -8 |
| %broadcast.splatinsert1 = insertelement <8 x i32> undef, i32 %tmp, i32 0 |
| %broadcast.splat2 = shufflevector <8 x i32> %broadcast.splatinsert1, <8 x i32> undef, <8 x i32> zeroinitializer |
| %broadcast.splatinsert3 = insertelement <8 x i16> undef, i16 %B, i32 0 |
| %broadcast.splat4 = shufflevector <8 x i16> %broadcast.splatinsert3, <8 x i16> undef, <8 x i32> zeroinitializer |
| %0 = add i32 %n.vec, -8 |
| %1 = lshr i32 %0, 3 |
| %2 = add nuw nsw i32 %1, 1 |
| call void @llvm.set.loop.iterations.i32(i32 %2) |
| br label %vector.body |
| |
| vector.body: ; preds = %vector.body, %entry |
| %index = phi i32 [ 0, %entry ], [ %index.next, %vector.body ] |
| %vec.phi = phi <8 x i16> [ zeroinitializer, %entry ], [ %tmp6, %vector.body ] |
| %3 = phi i32 [ %2, %entry ], [ %4, %vector.body ] |
| %broadcast.splatinsert = insertelement <8 x i32> undef, i32 %index, i32 0 |
| %broadcast.splat = shufflevector <8 x i32> %broadcast.splatinsert, <8 x i32> undef, <8 x i32> zeroinitializer |
| %induction = add <8 x i32> %broadcast.splat, <i32 0, i32 1, i32 2, i32 3, i32 4, i32 5, i32 6, i32 7> |
| %tmp2 = getelementptr inbounds i16, i16* %A, i32 %index |
| %tmp3 = icmp ule <8 x i32> %induction, %broadcast.splat2 |
| %tmp4 = bitcast i16* %tmp2 to <8 x i16>* |
| %wide.masked.load = call <8 x i16> @llvm.masked.load.v8i16.p0v8i16(<8 x i16>* %tmp4, i32 4, <8 x i1> %tmp3, <8 x i16> undef) |
| %tmp5 = add <8 x i16> %vec.phi, %broadcast.splat4 |
| %tmp6 = add <8 x i16> %tmp5, %wide.masked.load |
| %index.next = add nuw nsw i32 %index, 8 |
| %4 = call i32 @llvm.loop.decrement.reg.i32.i32.i32(i32 %3, i32 1) |
| %5 = icmp ne i32 %4, 0 |
| br i1 %5, label %vector.body, label %middle.block |
| |
| middle.block: ; preds = %vector.body |
| %tmp8 = select <8 x i1> %tmp3, <8 x i16> %tmp6, <8 x i16> %vec.phi |
| %rdx.shuf = shufflevector <8 x i16> %tmp8, <8 x i16> undef, <8 x i32> <i32 4, i32 5, i32 6, i32 7, i32 undef, i32 undef, i32 undef, i32 undef> |
| %bin.rdx = add <8 x i16> %rdx.shuf, %tmp8 |
| %rdx.shuf5 = shufflevector <8 x i16> %bin.rdx, <8 x i16> undef, <8 x i32> <i32 2, i32 3, i32 undef, i32 undef, i32 undef, i32 undef, i32 undef, i32 undef> |
| %bin.rdx6 = add <8 x i16> %rdx.shuf5, %bin.rdx |
| %rdx.shuf7 = shufflevector <8 x i16> %bin.rdx6, <8 x i16> undef, <8 x i32> <i32 1, i32 undef, i32 undef, i32 undef, i32 undef, i32 undef, i32 undef, i32 undef> |
| %bin.rdx8 = add <8 x i16> %rdx.shuf7, %bin.rdx6 |
| %tmp9 = extractelement <8 x i16> %bin.rdx8, i32 0 |
| ret i16 %tmp9 |
| } |
| |
| declare <8 x i16> @llvm.masked.load.v8i16.p0v8i16(<8 x i16>*, i32 immarg, <8 x i1>, <8 x i16>) |
| declare void @llvm.set.loop.iterations.i32(i32) |
| declare i32 @llvm.loop.decrement.reg.i32.i32.i32(i32, i32) |
| |
| |