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1; NOTE: Assertions have been autogenerated by utils/update_test_checks.py2; RUN: opt -passes=loop-vectorize -force-vector-width=1 -force-vector-interleave=2 -S %s | FileCheck %s3 4define void @test1_select_invariant(ptr %src.1, ptr %src.2, ptr %dst, i1 %c, i8 %n) {5; CHECK-LABEL: @test1_select_invariant(6; CHECK-NEXT: entry:7; CHECK-NEXT: [[PTR_SEL:%.*]] = select i1 [[C:%.*]], ptr [[SRC_1:%.*]], ptr [[SRC_2:%.*]]8; CHECK-NEXT: [[TMP0:%.*]] = add i8 [[N:%.*]], -19; CHECK-NEXT: [[TMP1:%.*]] = zext i8 [[TMP0]] to i3210; CHECK-NEXT: [[TMP2:%.*]] = add nuw nsw i32 [[TMP1]], 111; CHECK-NEXT: [[MIN_ITERS_CHECK:%.*]] = icmp ult i32 [[TMP2]], 212; CHECK-NEXT: br i1 [[MIN_ITERS_CHECK]], label [[SCALAR_PH:%.*]], label [[VECTOR_MEMCHECK:%.*]]13; CHECK: vector.memcheck:14; CHECK-NEXT: [[TMP3:%.*]] = add i8 [[N]], -115; CHECK-NEXT: [[TMP4:%.*]] = zext i8 [[TMP3]] to i6416; CHECK-NEXT: [[TMP5:%.*]] = add nuw nsw i64 [[TMP4]], 117; CHECK-NEXT: [[UGLYGEP:%.*]] = getelementptr i8, ptr [[DST:%.*]], i64 [[TMP5]]18; CHECK-NEXT: [[UGLYGEP1:%.*]] = getelementptr i8, ptr [[PTR_SEL]], i64 119; CHECK-NEXT: [[BOUND0:%.*]] = icmp ult ptr [[DST]], [[UGLYGEP1]]20; CHECK-NEXT: [[BOUND1:%.*]] = icmp ult ptr [[PTR_SEL]], [[UGLYGEP]]21; CHECK-NEXT: [[FOUND_CONFLICT:%.*]] = and i1 [[BOUND0]], [[BOUND1]]22; CHECK-NEXT: br i1 [[FOUND_CONFLICT]], label [[SCALAR_PH]], label [[VECTOR_PH:%.*]]23; CHECK: vector.ph:24; CHECK-NEXT: [[N_MOD_VF:%.*]] = urem i32 [[TMP2]], 225; CHECK-NEXT: [[N_VEC:%.*]] = sub i32 [[TMP2]], [[N_MOD_VF]]26; CHECK-NEXT: [[TMP6:%.*]] = load i8, ptr [[PTR_SEL]], align 8, !alias.scope [[META0:![0-9]+]]27; CHECK-NEXT: [[IND_END:%.*]] = trunc i32 [[N_VEC]] to i828; CHECK-NEXT: br label [[VECTOR_BODY:%.*]]29; CHECK: vector.body:30; CHECK-NEXT: [[INDEX:%.*]] = phi i32 [ 0, [[VECTOR_PH]] ], [ [[INDEX_NEXT:%.*]], [[VECTOR_BODY]] ]31; CHECK-NEXT: [[OFFSET_IDX:%.*]] = trunc i32 [[INDEX]] to i832; CHECK-NEXT: [[INDUCTION2:%.*]] = add i8 [[OFFSET_IDX]], 133; CHECK-NEXT: [[TMP11:%.*]] = getelementptr i8, ptr [[DST]], i8 [[OFFSET_IDX]]34; CHECK-NEXT: [[TMP8:%.*]] = getelementptr i8, ptr [[DST]], i8 [[INDUCTION2]]35; CHECK-NEXT: store i8 [[TMP6]], ptr [[TMP11]], align 2, !alias.scope [[META3:![0-9]+]], !noalias [[META0]]36; CHECK-NEXT: store i8 [[TMP6]], ptr [[TMP8]], align 2, !alias.scope [[META3]], !noalias [[META0]]37; CHECK-NEXT: [[INDEX_NEXT]] = add nuw i32 [[INDEX]], 238; CHECK-NEXT: [[TMP9:%.*]] = icmp eq i32 [[INDEX_NEXT]], [[N_VEC]]39; CHECK-NEXT: br i1 [[TMP9]], label [[MIDDLE_BLOCK:%.*]], label [[VECTOR_BODY]], !llvm.loop [[LOOP5:![0-9]+]]40; CHECK: middle.block:41; CHECK-NEXT: [[CMP_N:%.*]] = icmp eq i32 [[TMP2]], [[N_VEC]]42; CHECK-NEXT: br i1 [[CMP_N]], label [[EXIT:%.*]], label [[SCALAR_PH]]43; CHECK: scalar.ph:44; CHECK-NEXT: [[BC_RESUME_VAL:%.*]] = phi i8 [ [[IND_END]], [[MIDDLE_BLOCK]] ], [ 0, [[ENTRY:%.*]] ], [ 0, [[VECTOR_MEMCHECK]] ]45; CHECK-NEXT: br label [[LOOP:%.*]]46; CHECK: loop:47; CHECK-NEXT: [[IV:%.*]] = phi i8 [ [[BC_RESUME_VAL]], [[SCALAR_PH]] ], [ [[IV_NEXT:%.*]], [[LOOP]] ]48; CHECK-NEXT: [[L_1:%.*]] = load i8, ptr [[PTR_SEL]], align 849; CHECK-NEXT: [[GEP_DST:%.*]] = getelementptr i8, ptr [[DST]], i8 [[IV]]50; CHECK-NEXT: store i8 [[L_1]], ptr [[GEP_DST]], align 251; CHECK-NEXT: [[IV_NEXT]] = add nuw nsw i8 [[IV]], 152; CHECK-NEXT: [[EC:%.*]] = icmp eq i8 [[IV_NEXT]], [[N]]53; CHECK-NEXT: br i1 [[EC]], label [[EXIT]], label [[LOOP]], !llvm.loop [[LOOP8:![0-9]+]]54; CHECK: exit:55; CHECK-NEXT: ret void56;57entry:58 %ptr.sel = select i1 %c, ptr %src.1, ptr %src.259 br label %loop60 61loop:62 %iv = phi i8 [ 0, %entry ], [ %iv.next, %loop ]63 %l.1 = load i8, ptr %ptr.sel, align 864 %gep.dst = getelementptr i8, ptr %dst, i8 %iv65 store i8 %l.1, ptr %gep.dst, align 266 %iv.next = add nsw nuw i8 %iv, 167 %ec = icmp eq i8 %iv.next, %n68 br i1 %ec, label %exit, label %loop69 70exit:71 ret void72}73 74define void @test_loop_dependent_select1(ptr %src.1, ptr %src.2, ptr %dst, i1 %c, i8 %n) {75; CHECK-LABEL: @test_loop_dependent_select1(76; CHECK-NEXT: entry:77; CHECK-NEXT: [[SRC_23:%.*]] = ptrtoint ptr [[SRC_2:%.*]] to i6478; CHECK-NEXT: [[SRC_12:%.*]] = ptrtoint ptr [[SRC_1:%.*]] to i6479; CHECK-NEXT: [[DST1:%.*]] = ptrtoint ptr [[DST:%.*]] to i6480; CHECK-NEXT: [[TMP0:%.*]] = add i8 [[N:%.*]], -181; CHECK-NEXT: [[TMP1:%.*]] = zext i8 [[TMP0]] to i3282; CHECK-NEXT: [[TMP2:%.*]] = add nuw nsw i32 [[TMP1]], 183; CHECK-NEXT: [[MIN_ITERS_CHECK:%.*]] = icmp ult i32 [[TMP2]], 284; CHECK-NEXT: br i1 [[MIN_ITERS_CHECK]], label [[SCALAR_PH:%.*]], label [[VECTOR_MEMCHECK:%.*]]85; CHECK: vector.memcheck:86; CHECK-NEXT: [[TMP3:%.*]] = sub i64 [[DST1]], [[SRC_12]]87; CHECK-NEXT: [[DIFF_CHECK:%.*]] = icmp ult i64 [[TMP3]], 288; CHECK-NEXT: [[DIFF_CHECK_FR:%.*]] = freeze i1 [[DIFF_CHECK]]89; CHECK-NEXT: [[TMP4:%.*]] = sub i64 [[DST1]], [[SRC_23]]90; CHECK-NEXT: [[DIFF_CHECK5:%.*]] = icmp ult i64 [[TMP4]], 291; CHECK-NEXT: [[DIFF_CHECK5_FR:%.*]] = freeze i1 [[DIFF_CHECK5]]92; CHECK-NEXT: [[CONFLICT_RDX:%.*]] = or i1 [[DIFF_CHECK_FR]], [[DIFF_CHECK5_FR]]93; CHECK-NEXT: br i1 [[CONFLICT_RDX]], label [[SCALAR_PH]], label [[VECTOR_PH:%.*]]94; CHECK: vector.ph:95; CHECK-NEXT: [[N_MOD_VF:%.*]] = urem i32 [[TMP2]], 296; CHECK-NEXT: [[N_VEC:%.*]] = sub i32 [[TMP2]], [[N_MOD_VF]]97; CHECK-NEXT: [[IND_END:%.*]] = trunc i32 [[N_VEC]] to i898; CHECK-NEXT: br label [[VECTOR_BODY:%.*]]99; CHECK: vector.body:100; CHECK-NEXT: [[INDEX:%.*]] = phi i32 [ 0, [[VECTOR_PH]] ], [ [[INDEX_NEXT:%.*]], [[VECTOR_BODY]] ]101; CHECK-NEXT: [[OFFSET_IDX:%.*]] = trunc i32 [[INDEX]] to i8102; CHECK-NEXT: [[INDUCTION6:%.*]] = add i8 [[OFFSET_IDX]], 1103; CHECK-NEXT: [[TMP5:%.*]] = getelementptr i8, ptr [[SRC_1]], i8 [[OFFSET_IDX]]104; CHECK-NEXT: [[TMP6:%.*]] = getelementptr i8, ptr [[SRC_1]], i8 [[INDUCTION6]]105; CHECK-NEXT: [[TMP7:%.*]] = getelementptr i8, ptr [[SRC_2]], i8 [[OFFSET_IDX]]106; CHECK-NEXT: [[TMP8:%.*]] = getelementptr i8, ptr [[SRC_2]], i8 [[INDUCTION6]]107; CHECK-NEXT: [[TMP9:%.*]] = select i1 [[C:%.*]], ptr [[TMP5]], ptr [[TMP7]]108; CHECK-NEXT: [[TMP10:%.*]] = select i1 [[C]], ptr [[TMP6]], ptr [[TMP8]]109; CHECK-NEXT: [[TMP11:%.*]] = load i8, ptr [[TMP9]], align 8110; CHECK-NEXT: [[TMP12:%.*]] = load i8, ptr [[TMP10]], align 8111; CHECK-NEXT: [[TMP13:%.*]] = getelementptr i8, ptr [[DST]], i8 [[OFFSET_IDX]]112; CHECK-NEXT: [[TMP14:%.*]] = getelementptr i8, ptr [[DST]], i8 [[INDUCTION6]]113; CHECK-NEXT: store i8 [[TMP11]], ptr [[TMP13]], align 2114; CHECK-NEXT: store i8 [[TMP12]], ptr [[TMP14]], align 2115; CHECK-NEXT: [[INDEX_NEXT]] = add nuw i32 [[INDEX]], 2116; CHECK-NEXT: [[TMP15:%.*]] = icmp eq i32 [[INDEX_NEXT]], [[N_VEC]]117; CHECK-NEXT: br i1 [[TMP15]], label [[MIDDLE_BLOCK:%.*]], label [[VECTOR_BODY]], !llvm.loop [[LOOP9:![0-9]+]]118; CHECK: middle.block:119; CHECK-NEXT: [[CMP_N:%.*]] = icmp eq i32 [[TMP2]], [[N_VEC]]120; CHECK-NEXT: br i1 [[CMP_N]], label [[EXIT:%.*]], label [[SCALAR_PH]]121; CHECK: scalar.ph:122; CHECK-NEXT: [[BC_RESUME_VAL:%.*]] = phi i8 [ [[IND_END]], [[MIDDLE_BLOCK]] ], [ 0, [[ENTRY:%.*]] ], [ 0, [[VECTOR_MEMCHECK]] ]123; CHECK-NEXT: br label [[LOOP:%.*]]124; CHECK: loop:125; CHECK-NEXT: [[IV:%.*]] = phi i8 [ [[BC_RESUME_VAL]], [[SCALAR_PH]] ], [ [[IV_NEXT:%.*]], [[LOOP]] ]126; CHECK-NEXT: [[GEP_SRC_1:%.*]] = getelementptr i8, ptr [[SRC_1]], i8 [[IV]]127; CHECK-NEXT: [[GEP_SRC_2:%.*]] = getelementptr i8, ptr [[SRC_2]], i8 [[IV]]128; CHECK-NEXT: [[PTR_SEL:%.*]] = select i1 [[C]], ptr [[GEP_SRC_1]], ptr [[GEP_SRC_2]]129; CHECK-NEXT: [[L_1:%.*]] = load i8, ptr [[PTR_SEL]], align 8130; CHECK-NEXT: [[GEP_DST:%.*]] = getelementptr i8, ptr [[DST]], i8 [[IV]]131; CHECK-NEXT: store i8 [[L_1]], ptr [[GEP_DST]], align 2132; CHECK-NEXT: [[IV_NEXT]] = add nuw nsw i8 [[IV]], 1133; CHECK-NEXT: [[EC:%.*]] = icmp eq i8 [[IV_NEXT]], [[N]]134; CHECK-NEXT: br i1 [[EC]], label [[EXIT]], label [[LOOP]], !llvm.loop [[LOOP10:![0-9]+]]135; CHECK: exit:136; CHECK-NEXT: ret void137;138entry:139 br label %loop140 141loop:142 %iv = phi i8 [ 0, %entry ], [ %iv.next, %loop ]143 %gep.src.1 = getelementptr i8, ptr %src.1, i8 %iv144 %gep.src.2 = getelementptr i8, ptr %src.2, i8 %iv145 %ptr.sel = select i1 %c, ptr %gep.src.1, ptr %gep.src.2146 %l.1 = load i8, ptr %ptr.sel, align 8147 %gep.dst = getelementptr i8, ptr %dst, i8 %iv148 store i8 %l.1, ptr %gep.dst, align 2149 %iv.next = add nsw nuw i8 %iv, 1150 %ec = icmp eq i8 %iv.next, %n151 br i1 %ec, label %exit, label %loop152 153exit:154 ret void155}156 157 158define void @test_loop_dependent_select2(ptr %src.1, ptr %src.2, ptr %dst, i8 %n, i8 %x) {159; CHECK-LABEL: @test_loop_dependent_select2(160; CHECK-NEXT: entry:161; CHECK-NEXT: [[TMP0:%.*]] = add i8 [[N:%.*]], -1162; CHECK-NEXT: [[TMP1:%.*]] = zext i8 [[TMP0]] to i32163; CHECK-NEXT: [[TMP2:%.*]] = add nuw nsw i32 [[TMP1]], 1164; CHECK-NEXT: [[MIN_ITERS_CHECK:%.*]] = icmp ult i32 [[TMP2]], 2165; CHECK-NEXT: br i1 [[MIN_ITERS_CHECK]], label [[SCALAR_PH:%.*]], label [[VECTOR_MEMCHECK:%.*]]166; CHECK: vector.memcheck:167; CHECK-NEXT: [[TMP3:%.*]] = add i8 [[N]], -1168; CHECK-NEXT: [[TMP4:%.*]] = zext i8 [[TMP3]] to i64169; CHECK-NEXT: [[TMP5:%.*]] = add nuw nsw i64 [[TMP4]], 1170; CHECK-NEXT: [[UGLYGEP:%.*]] = getelementptr i8, ptr [[DST:%.*]], i64 [[TMP5]]171; CHECK-NEXT: [[UGLYGEP1:%.*]] = getelementptr i8, ptr [[SRC_1:%.*]], i64 1172; CHECK-NEXT: [[SRC_1_FR:%.*]] = freeze ptr [[SRC_1]]173; CHECK-NEXT: [[UGLYGEP1_FR:%.*]] = freeze ptr [[UGLYGEP1]]174; CHECK-NEXT: [[UGLYGEP2:%.*]] = getelementptr i8, ptr [[SRC_2:%.*]], i64 1175; CHECK-NEXT: [[SRC_2_FR:%.*]] = freeze ptr [[SRC_2]]176; CHECK-NEXT: [[UGLYGEP2_FR:%.*]] = freeze ptr [[UGLYGEP2]]177; CHECK-NEXT: [[BOUND0:%.*]] = icmp ult ptr [[DST]], [[UGLYGEP1_FR]]178; CHECK-NEXT: [[BOUND1:%.*]] = icmp ult ptr [[SRC_1_FR]], [[UGLYGEP]]179; CHECK-NEXT: [[FOUND_CONFLICT:%.*]] = and i1 [[BOUND0]], [[BOUND1]]180; CHECK-NEXT: [[BOUND03:%.*]] = icmp ult ptr [[DST]], [[UGLYGEP2_FR]]181; CHECK-NEXT: [[BOUND14:%.*]] = icmp ult ptr [[SRC_2_FR]], [[UGLYGEP]]182; CHECK-NEXT: [[FOUND_CONFLICT5:%.*]] = and i1 [[BOUND03]], [[BOUND14]]183; CHECK-NEXT: [[CONFLICT_RDX:%.*]] = or i1 [[FOUND_CONFLICT]], [[FOUND_CONFLICT5]]184; CHECK-NEXT: br i1 [[CONFLICT_RDX]], label [[SCALAR_PH]], label [[VECTOR_PH:%.*]]185; CHECK: vector.ph:186; CHECK-NEXT: [[N_MOD_VF:%.*]] = urem i32 [[TMP2]], 2187; CHECK-NEXT: [[N_VEC:%.*]] = sub i32 [[TMP2]], [[N_MOD_VF]]188; CHECK-NEXT: [[IND_END:%.*]] = trunc i32 [[N_VEC]] to i8189; CHECK-NEXT: br label [[VECTOR_BODY:%.*]]190; CHECK: vector.body:191; CHECK-NEXT: [[INDEX:%.*]] = phi i32 [ 0, [[VECTOR_PH]] ], [ [[INDEX_NEXT:%.*]], [[VECTOR_BODY]] ]192; CHECK-NEXT: [[OFFSET_IDX:%.*]] = trunc i32 [[INDEX]] to i8193; CHECK-NEXT: [[INDUCTION6:%.*]] = add i8 [[OFFSET_IDX]], 1194; CHECK-NEXT: [[TMP6:%.*]] = icmp ult i8 [[OFFSET_IDX]], [[X:%.*]]195; CHECK-NEXT: [[TMP7:%.*]] = icmp ult i8 [[INDUCTION6]], [[X]]196; CHECK-NEXT: [[TMP8:%.*]] = select i1 [[TMP6]], ptr [[SRC_1]], ptr [[SRC_2]]197; CHECK-NEXT: [[TMP9:%.*]] = select i1 [[TMP7]], ptr [[SRC_1]], ptr [[SRC_2]]198; CHECK-NEXT: [[TMP12:%.*]] = load i8, ptr [[TMP8]], align 8, !alias.scope [[META11:![0-9]+]]199; CHECK-NEXT: [[TMP15:%.*]] = load i8, ptr [[TMP9]], align 8, !alias.scope [[META11]]200; CHECK-NEXT: [[TMP16:%.*]] = getelementptr i8, ptr [[DST]], i8 [[OFFSET_IDX]]201; CHECK-NEXT: [[TMP13:%.*]] = getelementptr i8, ptr [[DST]], i8 [[INDUCTION6]]202; CHECK-NEXT: store i8 [[TMP12]], ptr [[TMP16]], align 2, !alias.scope [[META14:![0-9]+]], !noalias [[META16:![0-9]+]]203; CHECK-NEXT: store i8 [[TMP15]], ptr [[TMP13]], align 2, !alias.scope [[META14]], !noalias [[META16]]204; CHECK-NEXT: [[INDEX_NEXT]] = add nuw i32 [[INDEX]], 2205; CHECK-NEXT: [[TMP14:%.*]] = icmp eq i32 [[INDEX_NEXT]], [[N_VEC]]206; CHECK-NEXT: br i1 [[TMP14]], label [[MIDDLE_BLOCK:%.*]], label [[VECTOR_BODY]], !llvm.loop [[LOOP18:![0-9]+]]207; CHECK: middle.block:208; CHECK-NEXT: [[CMP_N:%.*]] = icmp eq i32 [[TMP2]], [[N_VEC]]209; CHECK-NEXT: br i1 [[CMP_N]], label [[EXIT:%.*]], label [[SCALAR_PH]]210; CHECK: scalar.ph:211; CHECK-NEXT: [[BC_RESUME_VAL:%.*]] = phi i8 [ [[IND_END]], [[MIDDLE_BLOCK]] ], [ 0, [[ENTRY:%.*]] ], [ 0, [[VECTOR_MEMCHECK]] ]212; CHECK-NEXT: br label [[LOOP:%.*]]213; CHECK: loop:214; CHECK-NEXT: [[IV:%.*]] = phi i8 [ [[BC_RESUME_VAL]], [[SCALAR_PH]] ], [ [[IV_NEXT:%.*]], [[LOOP]] ]215; CHECK-NEXT: [[C:%.*]] = icmp ult i8 [[IV]], [[X]]216; CHECK-NEXT: [[PTR_SEL:%.*]] = select i1 [[C]], ptr [[SRC_1]], ptr [[SRC_2]]217; CHECK-NEXT: [[L_1:%.*]] = load i8, ptr [[PTR_SEL]], align 8218; CHECK-NEXT: [[GEP_DST:%.*]] = getelementptr i8, ptr [[DST]], i8 [[IV]]219; CHECK-NEXT: store i8 [[L_1]], ptr [[GEP_DST]], align 2220; CHECK-NEXT: [[IV_NEXT]] = add nuw nsw i8 [[IV]], 1221; CHECK-NEXT: [[EC:%.*]] = icmp eq i8 [[IV_NEXT]], [[N]]222; CHECK-NEXT: br i1 [[EC]], label [[EXIT]], label [[LOOP]], !llvm.loop [[LOOP19:![0-9]+]]223; CHECK: exit:224; CHECK-NEXT: ret void225;226entry:227 br label %loop228 229loop:230 %iv = phi i8 [ 0, %entry ], [ %iv.next, %loop ]231 %c = icmp ult i8 %iv, %x232 %ptr.sel = select i1 %c, ptr %src.1, ptr %src.2233 %l.1 = load i8, ptr %ptr.sel, align 8234 %gep.dst = getelementptr i8, ptr %dst, i8 %iv235 store i8 %l.1, ptr %gep.dst, align 2236 %iv.next = add nsw nuw i8 %iv, 1237 %ec = icmp eq i8 %iv.next, %n238 br i1 %ec, label %exit, label %loop239 240exit:241 ret void242}243 244define void @test_loop_dependent_select_first_ptr_noundef(ptr noundef %src.1, ptr %src.2, ptr %dst, i8 %n, i8 %x) {245; CHECK-LABEL: @test_loop_dependent_select_first_ptr_noundef(246; CHECK-NEXT: entry:247; CHECK-NEXT: [[TMP0:%.*]] = add i8 [[N:%.*]], -1248; CHECK-NEXT: [[TMP1:%.*]] = zext i8 [[TMP0]] to i32249; CHECK-NEXT: [[TMP2:%.*]] = add nuw nsw i32 [[TMP1]], 1250; CHECK-NEXT: [[MIN_ITERS_CHECK:%.*]] = icmp ult i32 [[TMP2]], 2251; CHECK-NEXT: br i1 [[MIN_ITERS_CHECK]], label [[SCALAR_PH:%.*]], label [[VECTOR_MEMCHECK:%.*]]252; CHECK: vector.memcheck:253; CHECK-NEXT: [[TMP3:%.*]] = add i8 [[N]], -1254; CHECK-NEXT: [[TMP4:%.*]] = zext i8 [[TMP3]] to i64255; CHECK-NEXT: [[TMP5:%.*]] = add nuw nsw i64 [[TMP4]], 1256; CHECK-NEXT: [[UGLYGEP:%.*]] = getelementptr i8, ptr [[DST:%.*]], i64 [[TMP5]]257; CHECK-NEXT: [[UGLYGEP1:%.*]] = getelementptr i8, ptr [[SRC_1:%.*]], i64 1258; CHECK-NEXT: [[UGLYGEP2:%.*]] = getelementptr i8, ptr [[SRC_2:%.*]], i64 1259; CHECK-NEXT: [[SRC_2_FR:%.*]] = freeze ptr [[SRC_2]]260; CHECK-NEXT: [[UGLYGEP2_FR:%.*]] = freeze ptr [[UGLYGEP2]]261; CHECK-NEXT: [[BOUND0:%.*]] = icmp ult ptr [[DST]], [[UGLYGEP1]]262; CHECK-NEXT: [[BOUND1:%.*]] = icmp ult ptr [[SRC_1]], [[UGLYGEP]]263; CHECK-NEXT: [[FOUND_CONFLICT:%.*]] = and i1 [[BOUND0]], [[BOUND1]]264; CHECK-NEXT: [[BOUND03:%.*]] = icmp ult ptr [[DST]], [[UGLYGEP2_FR]]265; CHECK-NEXT: [[BOUND14:%.*]] = icmp ult ptr [[SRC_2_FR]], [[UGLYGEP]]266; CHECK-NEXT: [[FOUND_CONFLICT5:%.*]] = and i1 [[BOUND03]], [[BOUND14]]267; CHECK-NEXT: [[CONFLICT_RDX:%.*]] = or i1 [[FOUND_CONFLICT]], [[FOUND_CONFLICT5]]268; CHECK-NEXT: br i1 [[CONFLICT_RDX]], label [[SCALAR_PH]], label [[VECTOR_PH:%.*]]269; CHECK: vector.ph:270; CHECK-NEXT: [[N_MOD_VF:%.*]] = urem i32 [[TMP2]], 2271; CHECK-NEXT: [[N_VEC:%.*]] = sub i32 [[TMP2]], [[N_MOD_VF]]272; CHECK-NEXT: [[IND_END:%.*]] = trunc i32 [[N_VEC]] to i8273; CHECK-NEXT: br label [[VECTOR_BODY:%.*]]274; CHECK: vector.body:275; CHECK-NEXT: [[INDEX:%.*]] = phi i32 [ 0, [[VECTOR_PH]] ], [ [[INDEX_NEXT:%.*]], [[VECTOR_BODY]] ]276; CHECK-NEXT: [[OFFSET_IDX:%.*]] = trunc i32 [[INDEX]] to i8277; CHECK-NEXT: [[INDUCTION6:%.*]] = add i8 [[OFFSET_IDX]], 1278; CHECK-NEXT: [[TMP6:%.*]] = icmp ult i8 [[OFFSET_IDX]], [[X:%.*]]279; CHECK-NEXT: [[TMP7:%.*]] = icmp ult i8 [[INDUCTION6]], [[X]]280; CHECK-NEXT: [[TMP8:%.*]] = select i1 [[TMP6]], ptr [[SRC_1]], ptr [[SRC_2]]281; CHECK-NEXT: [[TMP9:%.*]] = select i1 [[TMP7]], ptr [[SRC_1]], ptr [[SRC_2]]282; CHECK-NEXT: [[TMP12:%.*]] = load i8, ptr [[TMP8]], align 8, !alias.scope [[META20:![0-9]+]]283; CHECK-NEXT: [[TMP15:%.*]] = load i8, ptr [[TMP9]], align 8, !alias.scope [[META20]]284; CHECK-NEXT: [[TMP16:%.*]] = getelementptr i8, ptr [[DST]], i8 [[OFFSET_IDX]]285; CHECK-NEXT: [[TMP13:%.*]] = getelementptr i8, ptr [[DST]], i8 [[INDUCTION6]]286; CHECK-NEXT: store i8 [[TMP12]], ptr [[TMP16]], align 2, !alias.scope [[META23:![0-9]+]], !noalias [[META25:![0-9]+]]287; CHECK-NEXT: store i8 [[TMP15]], ptr [[TMP13]], align 2, !alias.scope [[META23]], !noalias [[META25]]288; CHECK-NEXT: [[INDEX_NEXT]] = add nuw i32 [[INDEX]], 2289; CHECK-NEXT: [[TMP14:%.*]] = icmp eq i32 [[INDEX_NEXT]], [[N_VEC]]290; CHECK-NEXT: br i1 [[TMP14]], label [[MIDDLE_BLOCK:%.*]], label [[VECTOR_BODY]], !llvm.loop [[LOOP27:![0-9]+]]291; CHECK: middle.block:292; CHECK-NEXT: [[CMP_N:%.*]] = icmp eq i32 [[TMP2]], [[N_VEC]]293; CHECK-NEXT: br i1 [[CMP_N]], label [[EXIT:%.*]], label [[SCALAR_PH]]294; CHECK: scalar.ph:295; CHECK-NEXT: [[BC_RESUME_VAL:%.*]] = phi i8 [ [[IND_END]], [[MIDDLE_BLOCK]] ], [ 0, [[ENTRY:%.*]] ], [ 0, [[VECTOR_MEMCHECK]] ]296; CHECK-NEXT: br label [[LOOP:%.*]]297; CHECK: loop:298; CHECK-NEXT: [[IV:%.*]] = phi i8 [ [[BC_RESUME_VAL]], [[SCALAR_PH]] ], [ [[IV_NEXT:%.*]], [[LOOP]] ]299; CHECK-NEXT: [[C:%.*]] = icmp ult i8 [[IV]], [[X]]300; CHECK-NEXT: [[PTR_SEL:%.*]] = select i1 [[C]], ptr [[SRC_1]], ptr [[SRC_2]]301; CHECK-NEXT: [[L_1:%.*]] = load i8, ptr [[PTR_SEL]], align 8302; CHECK-NEXT: [[GEP_DST:%.*]] = getelementptr i8, ptr [[DST]], i8 [[IV]]303; CHECK-NEXT: store i8 [[L_1]], ptr [[GEP_DST]], align 2304; CHECK-NEXT: [[IV_NEXT]] = add nuw nsw i8 [[IV]], 1305; CHECK-NEXT: [[EC:%.*]] = icmp eq i8 [[IV_NEXT]], [[N]]306; CHECK-NEXT: br i1 [[EC]], label [[EXIT]], label [[LOOP]], !llvm.loop [[LOOP28:![0-9]+]]307; CHECK: exit:308; CHECK-NEXT: ret void309;310entry:311 br label %loop312 313loop:314 %iv = phi i8 [ 0, %entry ], [ %iv.next, %loop ]315 %c = icmp ult i8 %iv, %x316 %ptr.sel = select i1 %c, ptr %src.1, ptr %src.2317 %l.1 = load i8, ptr %ptr.sel, align 8318 %gep.dst = getelementptr i8, ptr %dst, i8 %iv319 store i8 %l.1, ptr %gep.dst, align 2320 %iv.next = add nsw nuw i8 %iv, 1321 %ec = icmp eq i8 %iv.next, %n322 br i1 %ec, label %exit, label %loop323 324exit:325 ret void326}327 328define void @test_loop_dependent_select_second_ptr_noundef(ptr %src.1, ptr noundef %src.2, ptr %dst, i8 %n, i8 %x) {329; CHECK-LABEL: @test_loop_dependent_select_second_ptr_noundef(330; CHECK-NEXT: entry:331; CHECK-NEXT: [[TMP0:%.*]] = add i8 [[N:%.*]], -1332; CHECK-NEXT: [[TMP1:%.*]] = zext i8 [[TMP0]] to i32333; CHECK-NEXT: [[TMP2:%.*]] = add nuw nsw i32 [[TMP1]], 1334; CHECK-NEXT: [[MIN_ITERS_CHECK:%.*]] = icmp ult i32 [[TMP2]], 2335; CHECK-NEXT: br i1 [[MIN_ITERS_CHECK]], label [[SCALAR_PH:%.*]], label [[VECTOR_MEMCHECK:%.*]]336; CHECK: vector.memcheck:337; CHECK-NEXT: [[TMP3:%.*]] = add i8 [[N]], -1338; CHECK-NEXT: [[TMP4:%.*]] = zext i8 [[TMP3]] to i64339; CHECK-NEXT: [[TMP5:%.*]] = add nuw nsw i64 [[TMP4]], 1340; CHECK-NEXT: [[UGLYGEP:%.*]] = getelementptr i8, ptr [[DST:%.*]], i64 [[TMP5]]341; CHECK-NEXT: [[UGLYGEP1:%.*]] = getelementptr i8, ptr [[SRC_1:%.*]], i64 1342; CHECK-NEXT: [[SRC_1_FR:%.*]] = freeze ptr [[SRC_1]]343; CHECK-NEXT: [[UGLYGEP1_FR:%.*]] = freeze ptr [[UGLYGEP1]]344; CHECK-NEXT: [[UGLYGEP2:%.*]] = getelementptr i8, ptr [[SRC_2:%.*]], i64 1345; CHECK-NEXT: [[BOUND0:%.*]] = icmp ult ptr [[DST]], [[UGLYGEP1_FR]]346; CHECK-NEXT: [[BOUND1:%.*]] = icmp ult ptr [[SRC_1_FR]], [[UGLYGEP]]347; CHECK-NEXT: [[FOUND_CONFLICT:%.*]] = and i1 [[BOUND0]], [[BOUND1]]348; CHECK-NEXT: [[BOUND03:%.*]] = icmp ult ptr [[DST]], [[UGLYGEP2]]349; CHECK-NEXT: [[BOUND14:%.*]] = icmp ult ptr [[SRC_2]], [[UGLYGEP]]350; CHECK-NEXT: [[FOUND_CONFLICT5:%.*]] = and i1 [[BOUND03]], [[BOUND14]]351; CHECK-NEXT: [[CONFLICT_RDX:%.*]] = or i1 [[FOUND_CONFLICT]], [[FOUND_CONFLICT5]]352; CHECK-NEXT: br i1 [[CONFLICT_RDX]], label [[SCALAR_PH]], label [[VECTOR_PH:%.*]]353; CHECK: vector.ph:354; CHECK-NEXT: [[N_MOD_VF:%.*]] = urem i32 [[TMP2]], 2355; CHECK-NEXT: [[N_VEC:%.*]] = sub i32 [[TMP2]], [[N_MOD_VF]]356; CHECK-NEXT: [[IND_END:%.*]] = trunc i32 [[N_VEC]] to i8357; CHECK-NEXT: br label [[VECTOR_BODY:%.*]]358; CHECK: vector.body:359; CHECK-NEXT: [[INDEX:%.*]] = phi i32 [ 0, [[VECTOR_PH]] ], [ [[INDEX_NEXT:%.*]], [[VECTOR_BODY]] ]360; CHECK-NEXT: [[OFFSET_IDX:%.*]] = trunc i32 [[INDEX]] to i8361; CHECK-NEXT: [[INDUCTION6:%.*]] = add i8 [[OFFSET_IDX]], 1362; CHECK-NEXT: [[TMP6:%.*]] = icmp ult i8 [[OFFSET_IDX]], [[X:%.*]]363; CHECK-NEXT: [[TMP7:%.*]] = icmp ult i8 [[INDUCTION6]], [[X]]364; CHECK-NEXT: [[TMP8:%.*]] = select i1 [[TMP6]], ptr [[SRC_1]], ptr [[SRC_2]]365; CHECK-NEXT: [[TMP9:%.*]] = select i1 [[TMP7]], ptr [[SRC_1]], ptr [[SRC_2]]366; CHECK-NEXT: [[TMP12:%.*]] = load i8, ptr [[TMP8]], align 8, !alias.scope [[META29:![0-9]+]]367; CHECK-NEXT: [[TMP15:%.*]] = load i8, ptr [[TMP9]], align 8, !alias.scope [[META29]]368; CHECK-NEXT: [[TMP16:%.*]] = getelementptr i8, ptr [[DST]], i8 [[OFFSET_IDX]]369; CHECK-NEXT: [[TMP13:%.*]] = getelementptr i8, ptr [[DST]], i8 [[INDUCTION6]]370; CHECK-NEXT: store i8 [[TMP12]], ptr [[TMP16]], align 2, !alias.scope [[META32:![0-9]+]], !noalias [[META34:![0-9]+]]371; CHECK-NEXT: store i8 [[TMP15]], ptr [[TMP13]], align 2, !alias.scope [[META32]], !noalias [[META34]]372; CHECK-NEXT: [[INDEX_NEXT]] = add nuw i32 [[INDEX]], 2373; CHECK-NEXT: [[TMP14:%.*]] = icmp eq i32 [[INDEX_NEXT]], [[N_VEC]]374; CHECK-NEXT: br i1 [[TMP14]], label [[MIDDLE_BLOCK:%.*]], label [[VECTOR_BODY]], !llvm.loop [[LOOP36:![0-9]+]]375; CHECK: middle.block:376; CHECK-NEXT: [[CMP_N:%.*]] = icmp eq i32 [[TMP2]], [[N_VEC]]377; CHECK-NEXT: br i1 [[CMP_N]], label [[EXIT:%.*]], label [[SCALAR_PH]]378; CHECK: scalar.ph:379; CHECK-NEXT: [[BC_RESUME_VAL:%.*]] = phi i8 [ [[IND_END]], [[MIDDLE_BLOCK]] ], [ 0, [[ENTRY:%.*]] ], [ 0, [[VECTOR_MEMCHECK]] ]380; CHECK-NEXT: br label [[LOOP:%.*]]381; CHECK: loop:382; CHECK-NEXT: [[IV:%.*]] = phi i8 [ [[BC_RESUME_VAL]], [[SCALAR_PH]] ], [ [[IV_NEXT:%.*]], [[LOOP]] ]383; CHECK-NEXT: [[C:%.*]] = icmp ult i8 [[IV]], [[X]]384; CHECK-NEXT: [[PTR_SEL:%.*]] = select i1 [[C]], ptr [[SRC_1]], ptr [[SRC_2]]385; CHECK-NEXT: [[L_1:%.*]] = load i8, ptr [[PTR_SEL]], align 8386; CHECK-NEXT: [[GEP_DST:%.*]] = getelementptr i8, ptr [[DST]], i8 [[IV]]387; CHECK-NEXT: store i8 [[L_1]], ptr [[GEP_DST]], align 2388; CHECK-NEXT: [[IV_NEXT]] = add nuw nsw i8 [[IV]], 1389; CHECK-NEXT: [[EC:%.*]] = icmp eq i8 [[IV_NEXT]], [[N]]390; CHECK-NEXT: br i1 [[EC]], label [[EXIT]], label [[LOOP]], !llvm.loop [[LOOP37:![0-9]+]]391; CHECK: exit:392; CHECK-NEXT: ret void393;394entry:395 br label %loop396 397loop:398 %iv = phi i8 [ 0, %entry ], [ %iv.next, %loop ]399 %c = icmp ult i8 %iv, %x400 %ptr.sel = select i1 %c, ptr %src.1, ptr %src.2401 %l.1 = load i8, ptr %ptr.sel, align 8402 %gep.dst = getelementptr i8, ptr %dst, i8 %iv403 store i8 %l.1, ptr %gep.dst, align 2404 %iv.next = add nsw nuw i8 %iv, 1405 %ec = icmp eq i8 %iv.next, %n406 br i1 %ec, label %exit, label %loop407 408exit:409 ret void410}411