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-rw-r--r--llvm/test/CodeGen/Thumb2/LowOverheadLoops/vector-arith-codegen.ll242
1 files changed, 242 insertions, 0 deletions
diff --git a/llvm/test/CodeGen/Thumb2/LowOverheadLoops/vector-arith-codegen.ll b/llvm/test/CodeGen/Thumb2/LowOverheadLoops/vector-arith-codegen.ll
new file mode 100644
index 00000000000..1612e26e3f7
--- /dev/null
+++ b/llvm/test/CodeGen/Thumb2/LowOverheadLoops/vector-arith-codegen.ll
@@ -0,0 +1,242 @@
+; RUN: llc -mtriple=armv8.1m.main -mattr=+mve -enable-arm-maskedldst=true -disable-mve-tail-predication=false --verify-machineinstrs %s -o - | FileCheck %s
+
+; CHECK-LABEL: mul_reduce_add
+; CHECK: dls lr,
+; CHECK: [[LOOP:.LBB[0-9_]+]]:
+; CHECK: sub{{.*}} [[ELEMS:r[0-9]+]], #4
+; CHECK: vctp.32 [[ELEMS]]
+; CHECK: vpstt
+; CHECK-NEXT: vldrwt.u32
+; CHECK-NEXT: vldrwt.u32
+; CHECK: le lr, [[LOOP]]
+; CHECK: vctp.32 [[ELEMS]]
+; CHECK: vpsel
+; CHECK: vaddv.u32 r0
+define dso_local i32 @mul_reduce_add(i32* noalias nocapture readonly %a, i32* noalias nocapture readonly %b, i32 %N) {
+entry:
+ %cmp8 = icmp eq i32 %N, 0
+ br i1 %cmp8, label %for.cond.cleanup, label %vector.ph
+
+vector.ph: ; preds = %entry
+ %n.rnd.up = add i32 %N, 3
+ %n.vec = and i32 %n.rnd.up, -4
+ %trip.count.minus.1 = add i32 %N, -1
+ %broadcast.splatinsert11 = insertelement <4 x i32> undef, i32 %trip.count.minus.1, i32 0
+ %broadcast.splat12 = shufflevector <4 x i32> %broadcast.splatinsert11, <4 x i32> undef, <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> [ zeroinitializer, %vector.ph ], [ %6, %vector.body ]
+ %broadcast.splatinsert = insertelement <4 x i32> undef, i32 %index, i32 0
+ %broadcast.splat = shufflevector <4 x i32> %broadcast.splatinsert, <4 x i32> undef, <4 x i32> zeroinitializer
+ %induction = add <4 x i32> %broadcast.splat, <i32 0, i32 1, i32 2, i32 3>
+ %0 = getelementptr inbounds i32, i32* %a, i32 %index
+ %1 = icmp ule <4 x i32> %induction, %broadcast.splat12
+ %2 = bitcast i32* %0 to <4 x i32>*
+ %wide.masked.load = call <4 x i32> @llvm.masked.load.v4i32.p0v4i32(<4 x i32>* %2, i32 4, <4 x i1> %1, <4 x i32> undef)
+ %3 = getelementptr inbounds i32, i32* %b, i32 %index
+ %4 = bitcast i32* %3 to <4 x i32>*
+ %wide.masked.load13 = call <4 x i32> @llvm.masked.load.v4i32.p0v4i32(<4 x i32>* %4, i32 4, <4 x i1> %1, <4 x i32> undef)
+ %5 = mul nsw <4 x i32> %wide.masked.load13, %wide.masked.load
+ %6 = add nsw <4 x i32> %5, %vec.phi
+ %index.next = add i32 %index, 4
+ %7 = icmp eq i32 %index.next, %n.vec
+ br i1 %7, label %middle.block, label %vector.body
+
+middle.block: ; preds = %vector.body
+ %8 = select <4 x i1> %1, <4 x i32> %6, <4 x i32> %vec.phi
+ %9 = call i32 @llvm.experimental.vector.reduce.add.v4i32(<4 x i32> %8)
+ br label %for.cond.cleanup
+
+for.cond.cleanup: ; preds = %middle.block, %entry
+ %res.0.lcssa = phi i32 [ 0, %entry ], [ %9, %middle.block ]
+ ret i32 %res.0.lcssa
+}
+
+; Function Attrs: norecurse nounwind readonly
+define dso_local i32 @mul_reduce_add_const(i32* noalias nocapture readonly %a, i32 %b, i32 %N) {
+entry:
+ %cmp6 = icmp eq i32 %N, 0
+ br i1 %cmp6, label %for.cond.cleanup, label %vector.ph
+
+vector.ph: ; preds = %entry
+ %n.rnd.up = add i32 %N, 3
+ %n.vec = and i32 %n.rnd.up, -4
+ %trip.count.minus.1 = add i32 %N, -1
+ %broadcast.splatinsert9 = insertelement <4 x i32> undef, i32 %trip.count.minus.1, i32 0
+ %broadcast.splat10 = shufflevector <4 x i32> %broadcast.splatinsert9, <4 x i32> undef, <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> [ zeroinitializer, %vector.ph ], [ %3, %vector.body ]
+ %broadcast.splatinsert = insertelement <4 x i32> undef, i32 %index, i32 0
+ %broadcast.splat = shufflevector <4 x i32> %broadcast.splatinsert, <4 x i32> undef, <4 x i32> zeroinitializer
+ %induction = add <4 x i32> %broadcast.splat, <i32 0, i32 1, i32 2, i32 3>
+ %0 = getelementptr inbounds i32, i32* %a, i32 %index
+ %1 = icmp ule <4 x i32> %induction, %broadcast.splat10
+ %2 = bitcast i32* %0 to <4 x i32>*
+ %wide.masked.load = call <4 x i32> @llvm.masked.load.v4i32.p0v4i32(<4 x i32>* %2, i32 4, <4 x i1> %1, <4 x i32> undef)
+ %3 = add nsw <4 x i32> %wide.masked.load, %vec.phi
+ %index.next = add i32 %index, 4
+ %4 = icmp eq i32 %index.next, %n.vec
+ br i1 %4, label %middle.block, label %vector.body
+
+middle.block: ; preds = %vector.body
+ %5 = select <4 x i1> %1, <4 x i32> %3, <4 x i32> %vec.phi
+ %6 = call i32 @llvm.experimental.vector.reduce.add.v4i32(<4 x i32> %5)
+ br label %for.cond.cleanup
+
+for.cond.cleanup: ; preds = %middle.block, %entry
+ %res.0.lcssa = phi i32 [ 0, %entry ], [ %6, %middle.block ]
+ ret i32 %res.0.lcssa
+}
+
+; CHECK-LABEL: add_reduce_add_const
+; CHECK: dls lr, lr
+; CHECK: [[LOOP:.LBB[0-9_]+]]:
+; CHECK: subs [[ELEMS:r[0-9]+]], #4
+; CHECK: vctp.32 [[ELEMS]]
+; CHECK: vpst
+; CHECK-NEXT: vldrwt.u32 q{{.*}}, [r0]
+; CHECK: vadd.i32
+; CHECK: le lr, [[LOOP]]
+; CHECK: vctp.32 [[ELEMS]]
+; CHECK: vpsel
+define dso_local i32 @add_reduce_add_const(i32* noalias nocapture readonly %a, i32 %b, i32 %N) {
+entry:
+ %cmp6 = icmp eq i32 %N, 0
+ br i1 %cmp6, label %for.cond.cleanup, label %vector.ph
+
+vector.ph: ; preds = %entry
+ %n.rnd.up = add i32 %N, 3
+ %n.vec = and i32 %n.rnd.up, -4
+ %trip.count.minus.1 = add i32 %N, -1
+ %broadcast.splatinsert9 = insertelement <4 x i32> undef, i32 %trip.count.minus.1, i32 0
+ %broadcast.splat10 = shufflevector <4 x i32> %broadcast.splatinsert9, <4 x i32> undef, <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> [ zeroinitializer, %vector.ph ], [ %3, %vector.body ]
+ %broadcast.splatinsert = insertelement <4 x i32> undef, i32 %index, i32 0
+ %broadcast.splat = shufflevector <4 x i32> %broadcast.splatinsert, <4 x i32> undef, <4 x i32> zeroinitializer
+ %induction = add <4 x i32> %broadcast.splat, <i32 0, i32 1, i32 2, i32 3>
+ %0 = getelementptr inbounds i32, i32* %a, i32 %index
+ %1 = icmp ule <4 x i32> %induction, %broadcast.splat10
+ %2 = bitcast i32* %0 to <4 x i32>*
+ %wide.masked.load = call <4 x i32> @llvm.masked.load.v4i32.p0v4i32(<4 x i32>* %2, i32 4, <4 x i1> %1, <4 x i32> undef)
+ %3 = add nsw <4 x i32> %wide.masked.load, %vec.phi
+ %index.next = add i32 %index, 4
+ %4 = icmp eq i32 %index.next, %n.vec
+ br i1 %4, label %middle.block, label %vector.body
+
+middle.block: ; preds = %vector.body
+ %5 = select <4 x i1> %1, <4 x i32> %3, <4 x i32> %vec.phi
+ %6 = call i32 @llvm.experimental.vector.reduce.add.v4i32(<4 x i32> %5)
+ br label %for.cond.cleanup
+
+for.cond.cleanup: ; preds = %middle.block, %entry
+ %res.0.lcssa = phi i32 [ 0, %entry ], [ %6, %middle.block ]
+ ret i32 %res.0.lcssa
+}
+
+; CHECK-LABEL: vector_mul_const
+; CHECK: dls lr, lr
+; CHECK: [[LOOP:.LBB[0-9_]+]]:
+; CHECK: subs [[ELEMS:r[0-9]+]], #4
+; CHECK: vctp.32 [[ELEMS]]
+; CHECK: vpst
+; CHECK-NEXT: vldrwt.u32 q{{.*}}, [r1]
+; CHECK: vmul.i32
+; CHECK: vpst
+; CHECK-NEXT: vstrwt.32 q{{.*}}, [r0]
+; CHECK: le lr, [[LOOP]]
+define dso_local void @vector_mul_const(i32* noalias nocapture %a, i32* noalias nocapture readonly %b, i32 %c, i32 %N) {
+entry:
+ %cmp6 = icmp eq i32 %N, 0
+ br i1 %cmp6, label %for.cond.cleanup, label %vector.ph
+
+vector.ph: ; preds = %entry
+ %n.rnd.up = add i32 %N, 3
+ %n.vec = and i32 %n.rnd.up, -4
+ %trip.count.minus.1 = add i32 %N, -1
+ %broadcast.splatinsert8 = insertelement <4 x i32> undef, i32 %trip.count.minus.1, i32 0
+ %broadcast.splat9 = shufflevector <4 x i32> %broadcast.splatinsert8, <4 x i32> undef, <4 x i32> zeroinitializer
+ %broadcast.splatinsert10 = insertelement <4 x i32> undef, i32 %c, i32 0
+ %broadcast.splat11 = shufflevector <4 x i32> %broadcast.splatinsert10, <4 x i32> undef, <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 ]
+ %broadcast.splatinsert = insertelement <4 x i32> undef, i32 %index, i32 0
+ %broadcast.splat = shufflevector <4 x i32> %broadcast.splatinsert, <4 x i32> undef, <4 x i32> zeroinitializer
+ %induction = add <4 x i32> %broadcast.splat, <i32 0, i32 1, i32 2, i32 3>
+ %0 = getelementptr inbounds i32, i32* %b, i32 %index
+ %1 = icmp ule <4 x i32> %induction, %broadcast.splat9
+ %2 = bitcast i32* %0 to <4 x i32>*
+ %wide.masked.load = call <4 x i32> @llvm.masked.load.v4i32.p0v4i32(<4 x i32>* %2, i32 4, <4 x i1> %1, <4 x i32> undef)
+ %3 = mul nsw <4 x i32> %wide.masked.load, %broadcast.splat11
+ %4 = getelementptr inbounds i32, i32* %a, i32 %index
+ %5 = bitcast i32* %4 to <4 x i32>*
+ call void @llvm.masked.store.v4i32.p0v4i32(<4 x i32> %3, <4 x i32>* %5, i32 4, <4 x i1> %1)
+ %index.next = add i32 %index, 4
+ %6 = icmp eq i32 %index.next, %n.vec
+ br i1 %6, label %for.cond.cleanup, label %vector.body
+
+for.cond.cleanup: ; preds = %vector.body, %entry
+ ret void
+}
+
+; CHECK-LABEL: vector_add_const
+; CHECK: dls lr, lr
+; CHECK: [[LOOP:.LBB[0-9_]+]]:
+; CHECK: subs [[ELEMS:r[0-9]+]], #4
+; CHECK: vctp.32 [[ELEMS]]
+; CHECK: vpst
+; CHECK-NEXT: vldrwt.u32 q{{.*}}, [r1]
+; CHECK: vadd.i32
+; CHECK: vpst
+; CHECK-NEXT: vstrwt.32 q{{.*}}, [r0]
+; CHECK: le lr, [[LOOP]]
+define dso_local void @vector_add_const(i32* noalias nocapture %a, i32* noalias nocapture readonly %b, i32 %c, i32 %N) {
+entry:
+ %cmp6 = icmp eq i32 %N, 0
+ br i1 %cmp6, label %for.cond.cleanup, label %vector.ph
+
+vector.ph: ; preds = %entry
+ %n.rnd.up = add i32 %N, 3
+ %n.vec = and i32 %n.rnd.up, -4
+ %trip.count.minus.1 = add i32 %N, -1
+ %broadcast.splatinsert8 = insertelement <4 x i32> undef, i32 %trip.count.minus.1, i32 0
+ %broadcast.splat9 = shufflevector <4 x i32> %broadcast.splatinsert8, <4 x i32> undef, <4 x i32> zeroinitializer
+ %broadcast.splatinsert10 = insertelement <4 x i32> undef, i32 %c, i32 0
+ %broadcast.splat11 = shufflevector <4 x i32> %broadcast.splatinsert10, <4 x i32> undef, <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 ]
+ %broadcast.splatinsert = insertelement <4 x i32> undef, i32 %index, i32 0
+ %broadcast.splat = shufflevector <4 x i32> %broadcast.splatinsert, <4 x i32> undef, <4 x i32> zeroinitializer
+ %induction = add <4 x i32> %broadcast.splat, <i32 0, i32 1, i32 2, i32 3>
+ %0 = getelementptr inbounds i32, i32* %b, i32 %index
+ %1 = icmp ule <4 x i32> %induction, %broadcast.splat9
+ %2 = bitcast i32* %0 to <4 x i32>*
+ %wide.masked.load = call <4 x i32> @llvm.masked.load.v4i32.p0v4i32(<4 x i32>* %2, i32 4, <4 x i1> %1, <4 x i32> undef)
+ %3 = add nsw <4 x i32> %wide.masked.load, %broadcast.splat11
+ %4 = getelementptr inbounds i32, i32* %a, i32 %index
+ %5 = bitcast i32* %4 to <4 x i32>*
+ call void @llvm.masked.store.v4i32.p0v4i32(<4 x i32> %3, <4 x i32>* %5, i32 4, <4 x i1> %1)
+ %index.next = add i32 %index, 4
+ %6 = icmp eq i32 %index.next, %n.vec
+ br i1 %6, label %for.cond.cleanup, label %vector.body
+
+for.cond.cleanup: ; preds = %vector.body, %entry
+ ret void
+}
+
+declare <4 x i32> @llvm.masked.load.v4i32.p0v4i32(<4 x i32>*, i32 immarg, <4 x i1>, <4 x i32>)
+declare void @llvm.masked.store.v4i32.p0v4i32(<4 x i32>, <4 x i32>*, i32 immarg, <4 x i1>) #4
+declare i32 @llvm.experimental.vector.reduce.add.v4i32(<4 x i32>)
+
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