@@ -102,10 +102,161 @@ exit:
102102 ret i32 0
103103}
104104
105+ define void @test_scalar_cost_single_store_loop_invariant_cond (ptr %dst , i1 %c ) #0 {
106+ ; CHECK-LABEL: define void @test_scalar_cost_single_store_loop_invariant_cond(
107+ ; CHECK-SAME: ptr [[DST:%.*]], i1 [[C:%.*]]) #[[ATTR0]] {
108+ ; CHECK-NEXT: entry:
109+ ; CHECK-NEXT: br i1 false, label [[SCALAR_PH:%.*]], label [[VECTOR_PH:%.*]]
110+ ; CHECK: vector.ph:
111+ ; CHECK-NEXT: [[IND_END:%.*]] = getelementptr i8, ptr [[DST]], i64 96
112+ ; CHECK-NEXT: [[BROADCAST_SPLATINSERT:%.*]] = insertelement <8 x i1> poison, i1 [[C]], i64 0
113+ ; CHECK-NEXT: [[BROADCAST_SPLAT:%.*]] = shufflevector <8 x i1> [[BROADCAST_SPLATINSERT]], <8 x i1> poison, <8 x i32> zeroinitializer
114+ ; CHECK-NEXT: br label [[VECTOR_BODY:%.*]]
115+ ; CHECK: vector.body:
116+ ; CHECK-NEXT: [[INDEX:%.*]] = phi i64 [ 0, [[VECTOR_PH]] ], [ [[INDEX_NEXT:%.*]], [[VECTOR_BODY]] ]
117+ ; CHECK-NEXT: [[OFFSET_IDX:%.*]] = mul i64 [[INDEX]], 4
118+ ; CHECK-NEXT: [[TMP0:%.*]] = add i64 [[OFFSET_IDX]], 0
119+ ; CHECK-NEXT: [[NEXT_GEP:%.*]] = getelementptr i8, ptr [[DST]], i64 [[TMP0]]
120+ ; CHECK-NEXT: [[TMP1:%.*]] = getelementptr i32, ptr [[NEXT_GEP]], i32 0
121+ ; CHECK-NEXT: call void @llvm.masked.store.v8i32.p0(<8 x i32> zeroinitializer, ptr [[TMP1]], i32 4, <8 x i1> [[BROADCAST_SPLAT]])
122+ ; CHECK-NEXT: [[INDEX_NEXT]] = add nuw i64 [[INDEX]], 8
123+ ; CHECK-NEXT: [[TMP2:%.*]] = icmp eq i64 [[INDEX_NEXT]], 24
124+ ; CHECK-NEXT: br i1 [[TMP2]], label [[MIDDLE_BLOCK:%.*]], label [[VECTOR_BODY]], !llvm.loop [[LOOP4:![0-9]+]]
125+ ; CHECK: middle.block:
126+ ; CHECK-NEXT: br i1 false, label [[EXIT:%.*]], label [[SCALAR_PH]]
127+ ; CHECK: scalar.ph:
128+ ; CHECK-NEXT: [[BC_RESUME_VAL:%.*]] = phi ptr [ [[IND_END]], [[MIDDLE_BLOCK]] ], [ [[DST]], [[ENTRY:%.*]] ]
129+ ; CHECK-NEXT: [[BC_RESUME_VAL1:%.*]] = phi i64 [ 96, [[MIDDLE_BLOCK]] ], [ 0, [[ENTRY]] ]
130+ ; CHECK-NEXT: br label [[LOOP_HEADER:%.*]]
131+ ; CHECK: loop.header:
132+ ; CHECK-NEXT: [[PTR_IV:%.*]] = phi ptr [ [[BC_RESUME_VAL]], [[SCALAR_PH]] ], [ [[PTR_IV_NEXT:%.*]], [[LOOP_LATCH:%.*]] ]
133+ ; CHECK-NEXT: [[IV:%.*]] = phi i64 [ [[BC_RESUME_VAL1]], [[SCALAR_PH]] ], [ [[IV_NEXT:%.*]], [[LOOP_LATCH]] ]
134+ ; CHECK-NEXT: br i1 [[C]], label [[IF_THEN:%.*]], label [[LOOP_LATCH]]
135+ ; CHECK: if.then:
136+ ; CHECK-NEXT: store i32 0, ptr [[PTR_IV]], align 4
137+ ; CHECK-NEXT: br label [[LOOP_LATCH]]
138+ ; CHECK: loop.latch:
139+ ; CHECK-NEXT: [[IV_NEXT]] = add i64 [[IV]], 4
140+ ; CHECK-NEXT: [[PTR_IV_NEXT]] = getelementptr i8, ptr [[DST]], i64 [[IV_NEXT]]
141+ ; CHECK-NEXT: [[CMP_NOT:%.*]] = icmp eq i64 [[IV]], 116
142+ ; CHECK-NEXT: br i1 [[CMP_NOT]], label [[EXIT]], label [[LOOP_HEADER]], !llvm.loop [[LOOP5:![0-9]+]]
143+ ; CHECK: exit:
144+ ; CHECK-NEXT: ret void
145+ ;
146+ entry:
147+ br label %loop.header
148+
149+ loop.header:
150+ %ptr.iv = phi ptr [ %dst , %entry ], [ %ptr.iv.next , %loop.latch ]
151+ %iv = phi i64 [ 0 , %entry ], [ %iv.next , %loop.latch ]
152+ br i1 %c , label %if.then , label %loop.latch
153+
154+ if.then:
155+ store i32 0 , ptr %ptr.iv , align 4
156+ br label %loop.latch
157+
158+ loop.latch:
159+ %iv.next = add i64 %iv , 4
160+ %ptr.iv.next = getelementptr i8 , ptr %dst , i64 %iv.next
161+ %cmp.not = icmp eq i64 %iv , 116
162+ br i1 %cmp.not , label %exit , label %loop.header
163+
164+ exit:
165+ ret void
166+ }
167+
168+ define void @test_scalar_cost_single_store_loop_varying_cond (ptr %dst , ptr noalias %src ) #0 {
169+ ; CHECK-LABEL: define void @test_scalar_cost_single_store_loop_varying_cond(
170+ ; CHECK-SAME: ptr [[DST:%.*]], ptr noalias [[SRC:%.*]]) #[[ATTR0]] {
171+ ; CHECK-NEXT: entry:
172+ ; CHECK-NEXT: br i1 false, label [[SCALAR_PH:%.*]], label [[VECTOR_PH:%.*]]
173+ ; CHECK: vector.ph:
174+ ; CHECK-NEXT: [[IND_END:%.*]] = getelementptr i8, ptr [[DST]], i64 96
175+ ; CHECK-NEXT: br label [[VECTOR_BODY:%.*]]
176+ ; CHECK: vector.body:
177+ ; CHECK-NEXT: [[INDEX:%.*]] = phi i64 [ 0, [[VECTOR_PH]] ], [ [[INDEX_NEXT:%.*]], [[VECTOR_BODY]] ]
178+ ; CHECK-NEXT: [[OFFSET_IDX:%.*]] = mul i64 [[INDEX]], 4
179+ ; CHECK-NEXT: [[TMP0:%.*]] = add i64 [[OFFSET_IDX]], 0
180+ ; CHECK-NEXT: [[TMP1:%.*]] = add i64 [[OFFSET_IDX]], 16
181+ ; CHECK-NEXT: [[NEXT_GEP:%.*]] = getelementptr i8, ptr [[DST]], i64 [[TMP0]]
182+ ; CHECK-NEXT: [[NEXT_GEP2:%.*]] = getelementptr i8, ptr [[DST]], i64 [[TMP1]]
183+ ; CHECK-NEXT: [[OFFSET_IDX3:%.*]] = mul i64 [[INDEX]], 4
184+ ; CHECK-NEXT: [[TMP2:%.*]] = add i64 [[OFFSET_IDX3]], 0
185+ ; CHECK-NEXT: [[TMP3:%.*]] = add i64 [[OFFSET_IDX3]], 16
186+ ; CHECK-NEXT: [[TMP4:%.*]] = getelementptr inbounds i32, ptr [[SRC]], i64 [[TMP2]]
187+ ; CHECK-NEXT: [[TMP5:%.*]] = getelementptr inbounds i32, ptr [[SRC]], i64 [[TMP3]]
188+ ; CHECK-NEXT: [[TMP6:%.*]] = getelementptr inbounds i32, ptr [[TMP4]], i32 0
189+ ; CHECK-NEXT: [[TMP7:%.*]] = getelementptr inbounds i32, ptr [[TMP5]], i32 0
190+ ; CHECK-NEXT: [[WIDE_VEC:%.*]] = load <16 x i32>, ptr [[TMP6]], align 4
191+ ; CHECK-NEXT: [[WIDE_VEC4:%.*]] = load <16 x i32>, ptr [[TMP7]], align 4
192+ ; CHECK-NEXT: [[STRIDED_VEC:%.*]] = shufflevector <16 x i32> [[WIDE_VEC]], <16 x i32> poison, <4 x i32> <i32 0, i32 4, i32 8, i32 12>
193+ ; CHECK-NEXT: [[STRIDED_VEC5:%.*]] = shufflevector <16 x i32> [[WIDE_VEC4]], <16 x i32> poison, <4 x i32> <i32 0, i32 4, i32 8, i32 12>
194+ ; CHECK-NEXT: [[TMP8:%.*]] = icmp eq <4 x i32> [[STRIDED_VEC]], <i32 123, i32 123, i32 123, i32 123>
195+ ; CHECK-NEXT: [[TMP9:%.*]] = icmp eq <4 x i32> [[STRIDED_VEC5]], <i32 123, i32 123, i32 123, i32 123>
196+ ; CHECK-NEXT: [[TMP10:%.*]] = getelementptr i32, ptr [[NEXT_GEP]], i32 0
197+ ; CHECK-NEXT: [[TMP11:%.*]] = getelementptr i32, ptr [[NEXT_GEP]], i32 4
198+ ; CHECK-NEXT: call void @llvm.masked.store.v4i32.p0(<4 x i32> zeroinitializer, ptr [[TMP10]], i32 4, <4 x i1> [[TMP8]])
199+ ; CHECK-NEXT: call void @llvm.masked.store.v4i32.p0(<4 x i32> zeroinitializer, ptr [[TMP11]], i32 4, <4 x i1> [[TMP9]])
200+ ; CHECK-NEXT: [[INDEX_NEXT]] = add nuw i64 [[INDEX]], 8
201+ ; CHECK-NEXT: [[TMP12:%.*]] = icmp eq i64 [[INDEX_NEXT]], 24
202+ ; CHECK-NEXT: br i1 [[TMP12]], label [[MIDDLE_BLOCK:%.*]], label [[VECTOR_BODY]], !llvm.loop [[LOOP6:![0-9]+]]
203+ ; CHECK: middle.block:
204+ ; CHECK-NEXT: br label [[SCALAR_PH]]
205+ ; CHECK: scalar.ph:
206+ ; CHECK-NEXT: [[BC_RESUME_VAL:%.*]] = phi ptr [ [[IND_END]], [[MIDDLE_BLOCK]] ], [ [[DST]], [[ENTRY:%.*]] ]
207+ ; CHECK-NEXT: [[BC_RESUME_VAL1:%.*]] = phi i64 [ 96, [[MIDDLE_BLOCK]] ], [ 0, [[ENTRY]] ]
208+ ; CHECK-NEXT: br label [[LOOP_HEADER:%.*]]
209+ ; CHECK: loop.header:
210+ ; CHECK-NEXT: [[PTR_IV:%.*]] = phi ptr [ [[BC_RESUME_VAL]], [[SCALAR_PH]] ], [ [[PTR_IV_NEXT:%.*]], [[LOOP_LATCH:%.*]] ]
211+ ; CHECK-NEXT: [[IV:%.*]] = phi i64 [ [[BC_RESUME_VAL1]], [[SCALAR_PH]] ], [ [[IV_NEXT:%.*]], [[LOOP_LATCH]] ]
212+ ; CHECK-NEXT: [[GEP_SRC:%.*]] = getelementptr inbounds i32, ptr [[SRC]], i64 [[IV]]
213+ ; CHECK-NEXT: [[L:%.*]] = load i32, ptr [[GEP_SRC]], align 4
214+ ; CHECK-NEXT: [[C:%.*]] = icmp eq i32 [[L]], 123
215+ ; CHECK-NEXT: br i1 [[C]], label [[IF_THEN:%.*]], label [[LOOP_LATCH]]
216+ ; CHECK: if.then:
217+ ; CHECK-NEXT: store i32 0, ptr [[PTR_IV]], align 4
218+ ; CHECK-NEXT: br label [[LOOP_LATCH]]
219+ ; CHECK: loop.latch:
220+ ; CHECK-NEXT: [[IV_NEXT]] = add i64 [[IV]], 4
221+ ; CHECK-NEXT: [[PTR_IV_NEXT]] = getelementptr i8, ptr [[DST]], i64 [[IV_NEXT]]
222+ ; CHECK-NEXT: [[CMP_NOT:%.*]] = icmp eq i64 [[IV]], 116
223+ ; CHECK-NEXT: br i1 [[CMP_NOT]], label [[EXIT:%.*]], label [[LOOP_HEADER]], !llvm.loop [[LOOP7:![0-9]+]]
224+ ; CHECK: exit:
225+ ; CHECK-NEXT: ret void
226+ ;
227+ entry:
228+ br label %loop.header
229+
230+ loop.header:
231+ %ptr.iv = phi ptr [ %dst , %entry ], [ %ptr.iv.next , %loop.latch ]
232+ %iv = phi i64 [ 0 , %entry ], [ %iv.next , %loop.latch ]
233+ %gep.src = getelementptr inbounds i32 , ptr %src , i64 %iv
234+ %l = load i32 , ptr %gep.src
235+ %c = icmp eq i32 %l , 123
236+ br i1 %c , label %if.then , label %loop.latch
237+
238+ if.then:
239+ store i32 0 , ptr %ptr.iv , align 4
240+ br label %loop.latch
241+
242+ loop.latch:
243+ %iv.next = add i64 %iv , 4
244+ %ptr.iv.next = getelementptr i8 , ptr %dst , i64 %iv.next
245+ %cmp.not = icmp eq i64 %iv , 116
246+ br i1 %cmp.not , label %exit , label %loop.header
247+
248+ exit:
249+ ret void
250+ }
251+
105252attributes #0 = { "min-legal-vector-width" ="0" "target-cpu" ="skylake-avx512" }
106253;.
107254; CHECK: [[LOOP0]] = distinct !{[[LOOP0]], [[META1:![0-9]+]], [[META2:![0-9]+]]}
108255; CHECK: [[META1]] = !{!"llvm.loop.isvectorized", i32 1}
109256; CHECK: [[META2]] = !{!"llvm.loop.unroll.runtime.disable"}
110257; CHECK: [[LOOP3]] = distinct !{[[LOOP3]], [[META2]], [[META1]]}
258+ ; CHECK: [[LOOP4]] = distinct !{[[LOOP4]], [[META1]], [[META2]]}
259+ ; CHECK: [[LOOP5]] = distinct !{[[LOOP5]], [[META2]], [[META1]]}
260+ ; CHECK: [[LOOP6]] = distinct !{[[LOOP6]], [[META1]], [[META2]]}
261+ ; CHECK: [[LOOP7]] = distinct !{[[LOOP7]], [[META2]], [[META1]]}
111262;.
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