1; NOTE: Assertions have been autogenerated by utils/update_test_checks.py 2; RUN: opt -loop-vectorize -force-vector-width=2 -force-vector-interleave=1 -S %s | FileCheck %s 3 4; Make sure LV does not crash when creating runtime checks involving values from 5; other loops. 6define i16 @test(i16** %arg, i64 %N) { 7; CHECK-LABEL: @test( 8; CHECK-NEXT: entry: 9; CHECK-NEXT: br label [[OUTER:%.*]] 10; CHECK: outer: 11; CHECK-NEXT: [[L_1:%.*]] = load i16*, i16** [[ARG:%.*]], align 8 12; CHECK-NEXT: [[L_2:%.*]] = load i16*, i16** [[ARG]], align 8 13; CHECK-NEXT: [[C_1:%.*]] = call i1 @cond() 14; CHECK-NEXT: br i1 [[C_1]], label [[OUTER_BACKEDGE:%.*]], label [[INNER_PREHEADER:%.*]] 15; CHECK: outer.backedge: 16; CHECK-NEXT: br label [[OUTER]] 17; CHECK: inner.preheader: 18; CHECK-NEXT: br label [[INNER:%.*]] 19; CHECK: inner: 20; CHECK-NEXT: [[C_2:%.*]] = call i1 @cond() 21; CHECK-NEXT: br i1 [[C_2]], label [[OUTER_LATCH:%.*]], label [[INNER_BB:%.*]] 22; CHECK: inner.bb: 23; CHECK-NEXT: [[C_3:%.*]] = call i1 @cond() 24; CHECK-NEXT: br i1 [[C_3]], label [[LOOP_3_PREHEADER:%.*]], label [[INNER_LATCH:%.*]] 25; CHECK: loop.3.preheader: 26; CHECK-NEXT: [[L_1_LCSSA10:%.*]] = phi i16* [ [[L_1]], [[INNER_BB]] ] 27; CHECK-NEXT: [[L_1_LCSSA:%.*]] = phi i16* [ [[L_1]], [[INNER_BB]] ] 28; CHECK-NEXT: [[L_2_LCSSA:%.*]] = phi i16* [ [[L_2]], [[INNER_BB]] ] 29; CHECK-NEXT: [[L_2_LCSSA3:%.*]] = bitcast i16* [[L_2_LCSSA]] to i8* 30; CHECK-NEXT: [[TMP0:%.*]] = add i64 [[N:%.*]], 1 31; CHECK-NEXT: [[MIN_ITERS_CHECK:%.*]] = icmp ult i64 [[TMP0]], 2 32; CHECK-NEXT: br i1 [[MIN_ITERS_CHECK]], label [[SCALAR_PH:%.*]], label [[VECTOR_MEMCHECK:%.*]] 33; CHECK: vector.memcheck: 34; CHECK-NEXT: [[SCEVGEP:%.*]] = getelementptr i16, i16* [[L_2_LCSSA]], i64 1 35; CHECK-NEXT: [[SCEVGEP4:%.*]] = bitcast i16* [[SCEVGEP]] to i8* 36; CHECK-NEXT: [[SCEVGEP5:%.*]] = getelementptr i16, i16* [[L_1_LCSSA]], i64 1 37; CHECK-NEXT: [[SCEVGEP58:%.*]] = bitcast i16* [[SCEVGEP5]] to i8* 38; CHECK-NEXT: [[TMP1:%.*]] = add i64 [[N]], 2 39; CHECK-NEXT: [[SCEVGEP9:%.*]] = getelementptr i16, i16* [[L_1_LCSSA10]], i64 [[TMP1]] 40; CHECK-NEXT: [[SCEVGEP912:%.*]] = bitcast i16* [[SCEVGEP9]] to i8* 41; CHECK-NEXT: [[BOUND0:%.*]] = icmp ult i8* [[L_2_LCSSA3]], [[SCEVGEP912]] 42; CHECK-NEXT: [[BOUND1:%.*]] = icmp ult i8* [[SCEVGEP58]], [[SCEVGEP4]] 43; CHECK-NEXT: [[FOUND_CONFLICT:%.*]] = and i1 [[BOUND0]], [[BOUND1]] 44; CHECK-NEXT: [[MEMCHECK_CONFLICT:%.*]] = and i1 [[FOUND_CONFLICT]], true 45; CHECK-NEXT: br i1 [[MEMCHECK_CONFLICT]], label [[SCALAR_PH]], label [[VECTOR_PH:%.*]] 46; CHECK: vector.ph: 47; CHECK-NEXT: [[N_MOD_VF:%.*]] = urem i64 [[TMP0]], 2 48; CHECK-NEXT: [[N_VEC:%.*]] = sub i64 [[TMP0]], [[N_MOD_VF]] 49; CHECK-NEXT: br label [[VECTOR_BODY:%.*]] 50; CHECK: vector.body: 51; CHECK-NEXT: [[INDEX:%.*]] = phi i64 [ 0, [[VECTOR_PH]] ], [ [[INDEX_NEXT:%.*]], [[VECTOR_BODY]] ] 52; CHECK-NEXT: [[TMP2:%.*]] = add i64 [[INDEX]], 0 53; CHECK-NEXT: [[TMP3:%.*]] = add nuw nsw i64 [[TMP2]], 1 54; CHECK-NEXT: [[TMP4:%.*]] = getelementptr inbounds i16, i16* [[L_1]], i64 [[TMP3]] 55; CHECK-NEXT: [[TMP5:%.*]] = getelementptr inbounds i16, i16* [[TMP4]], i32 0 56; CHECK-NEXT: [[TMP6:%.*]] = bitcast i16* [[TMP5]] to <2 x i16>* 57; CHECK-NEXT: [[WIDE_LOAD:%.*]] = load <2 x i16>, <2 x i16>* [[TMP6]], align 2, !alias.scope !0 58; CHECK-NEXT: [[TMP7:%.*]] = getelementptr inbounds i16, i16* [[L_2]], i64 0 59; CHECK-NEXT: [[TMP8:%.*]] = extractelement <2 x i16> [[WIDE_LOAD]], i32 0 60; CHECK-NEXT: store i16 [[TMP8]], i16* [[TMP7]], align 2, !alias.scope !3, !noalias !0 61; CHECK-NEXT: [[TMP9:%.*]] = extractelement <2 x i16> [[WIDE_LOAD]], i32 1 62; CHECK-NEXT: store i16 [[TMP9]], i16* [[TMP7]], align 2, !alias.scope !3, !noalias !0 63; CHECK-NEXT: [[INDEX_NEXT]] = add nuw i64 [[INDEX]], 2 64; CHECK-NEXT: [[TMP10:%.*]] = icmp eq i64 [[INDEX_NEXT]], [[N_VEC]] 65; CHECK-NEXT: br i1 [[TMP10]], label [[MIDDLE_BLOCK:%.*]], label [[VECTOR_BODY]], !llvm.loop [[LOOP5:![0-9]+]] 66; CHECK: middle.block: 67; CHECK-NEXT: [[CMP_N:%.*]] = icmp eq i64 [[TMP0]], [[N_VEC]] 68; CHECK-NEXT: br i1 [[CMP_N]], label [[EXIT_LOOPEXIT:%.*]], label [[SCALAR_PH]] 69; CHECK: scalar.ph: 70; CHECK-NEXT: [[BC_RESUME_VAL:%.*]] = phi i64 [ [[N_VEC]], [[MIDDLE_BLOCK]] ], [ 0, [[LOOP_3_PREHEADER]] ], [ 0, [[VECTOR_MEMCHECK]] ] 71; CHECK-NEXT: br label [[LOOP_3:%.*]] 72; CHECK: inner.latch: 73; CHECK-NEXT: [[C_4:%.*]] = call i1 @cond() 74; CHECK-NEXT: br i1 [[C_4]], label [[EXIT_LOOPEXIT1:%.*]], label [[INNER]] 75; CHECK: outer.latch: 76; CHECK-NEXT: br label [[OUTER_BACKEDGE]] 77; CHECK: loop.3: 78; CHECK-NEXT: [[IV:%.*]] = phi i64 [ [[IV_NEXT:%.*]], [[LOOP_3]] ], [ [[BC_RESUME_VAL]], [[SCALAR_PH]] ] 79; CHECK-NEXT: [[IV_NEXT]] = add nuw nsw i64 [[IV]], 1 80; CHECK-NEXT: [[C_5:%.*]] = icmp ult i64 [[IV]], [[N]] 81; CHECK-NEXT: [[GEP_1:%.*]] = getelementptr inbounds i16, i16* [[L_1_LCSSA]], i64 [[IV_NEXT]] 82; CHECK-NEXT: [[LOOP_L_1:%.*]] = load i16, i16* [[GEP_1]], align 2 83; CHECK-NEXT: [[GEP_2:%.*]] = getelementptr inbounds i16, i16* [[L_2_LCSSA]], i64 0 84; CHECK-NEXT: store i16 [[LOOP_L_1]], i16* [[GEP_2]], align 2 85; CHECK-NEXT: br i1 [[C_5]], label [[LOOP_3]], label [[EXIT_LOOPEXIT]], !llvm.loop [[LOOP7:![0-9]+]] 86; CHECK: exit.loopexit: 87; CHECK-NEXT: br label [[EXIT:%.*]] 88; CHECK: exit.loopexit1: 89; CHECK-NEXT: [[L_1_LCSSA6:%.*]] = phi i16* [ [[L_1]], [[INNER_LATCH]] ] 90; CHECK-NEXT: br label [[EXIT]] 91; CHECK: exit: 92; CHECK-NEXT: [[L_17:%.*]] = phi i16* [ [[L_1_LCSSA6]], [[EXIT_LOOPEXIT1]] ], [ [[L_1_LCSSA]], [[EXIT_LOOPEXIT]] ] 93; CHECK-NEXT: [[L_3:%.*]] = load i16, i16* [[L_17]], align 2 94; CHECK-NEXT: ret i16 [[L_3]] 95; 96entry: 97 br label %outer 98 99outer: 100 %l.1 = load i16*, i16** %arg, align 8 101 %l.2 = load i16*, i16** %arg, align 8 102 %c.1 = call i1 @cond() 103 br i1 %c.1, label %outer, label %inner 104 105inner: ; preds = %bb15, %bb1 106 %c.2 = call i1 @cond() 107 br i1 %c.2, label %outer.latch, label %inner.bb 108 109inner.bb: ; preds = %bb3 110 %c.3 = call i1 @cond() 111 br i1 %c.3, label %loop.3, label %inner.latch 112 113inner.latch: ; preds = %bb4 114 %c.4 = call i1 @cond() 115 br i1 %c.4, label %exit, label %inner 116 117outer.latch: ; preds = %bb3 118 br label %outer 119 120loop.3: ; preds = %bb9, %bb4 121 %iv = phi i64 [ %iv.next, %loop.3 ], [ 0, %inner.bb ] 122 %iv.next = add nsw nuw i64 %iv, 1 123 %c.5 = icmp ult i64 %iv, %N 124 %gep.1 = getelementptr inbounds i16, i16* %l.1, i64 %iv.next 125 %loop.l.1 = load i16, i16* %gep.1, align 2 126 %gep.2 = getelementptr inbounds i16, i16* %l.2, i64 0 127 store i16 %loop.l.1, i16* %gep.2 , align 2 128 br i1 %c.5, label %loop.3, label %exit 129 130exit: ; preds = %bb15, %bb5 131 %l.3 = load i16, i16* %l.1, align 2 132 ret i16 %l.3 133} 134 135declare i1 @cond() 136