1; NOTE: Assertions have been autogenerated by utils/update_test_checks.py 2; RUN: opt -force-vector-width=4 -force-vector-interleave=1 -passes='loop-vectorize,loop-load-elim' -S %s | FileCheck %s 3 4@glob.1 = external global [100 x double] 5@glob.2 = external global [100 x double] 6 7define void @g(ptr %dst.1, ptr %start, i64 %N) { 8; CHECK-LABEL: @g( 9; CHECK-NEXT: loop.1.lver.check: 10; CHECK-NEXT: [[TMP0:%.*]] = shl i64 [[N:%.*]], 3 11; CHECK-NEXT: [[TMP1:%.*]] = add i64 [[TMP0]], 16 12; CHECK-NEXT: [[UGLYGEP:%.*]] = getelementptr i8, ptr @glob.2, i64 [[TMP1]] 13; CHECK-NEXT: [[UGLYGEP2:%.*]] = getelementptr i8, ptr [[DST_1:%.*]], i64 8 14; CHECK-NEXT: [[BOUND0:%.*]] = icmp ult ptr @glob.2, [[UGLYGEP2]] 15; CHECK-NEXT: [[BOUND1:%.*]] = icmp ult ptr [[DST_1]], [[UGLYGEP]] 16; CHECK-NEXT: [[FOUND_CONFLICT:%.*]] = and i1 [[BOUND0]], [[BOUND1]] 17; CHECK-NEXT: br i1 [[FOUND_CONFLICT]], label [[LOOP_1_PH_LVER_ORIG:%.*]], label [[LOOP_1_PH:%.*]] 18; CHECK: loop.1.ph.lver.orig: 19; CHECK-NEXT: br label [[LOOP_1_LVER_ORIG:%.*]] 20; CHECK: loop.1.lver.orig: 21; CHECK-NEXT: [[IV_LVER_ORIG:%.*]] = phi i64 [ 0, [[LOOP_1_PH_LVER_ORIG]] ], [ [[IV_NEXT_LVER_ORIG:%.*]], [[LOOP_1_LVER_ORIG]] ] 22; CHECK-NEXT: [[PTR_IV_1_LVER_ORIG:%.*]] = phi ptr [ @glob.1, [[LOOP_1_PH_LVER_ORIG]] ], [ [[PTR_IV_1_NEXT_LVER_ORIG:%.*]], [[LOOP_1_LVER_ORIG]] ] 23; CHECK-NEXT: [[GEP_IV_LVER_ORIG:%.*]] = getelementptr inbounds double, ptr @glob.2, i64 [[IV_LVER_ORIG]] 24; CHECK-NEXT: [[L_1_LVER_ORIG:%.*]] = load double, ptr [[GEP_IV_LVER_ORIG]], align 8 25; CHECK-NEXT: [[GEP_IV_1_LVER_ORIG:%.*]] = getelementptr inbounds double, ptr getelementptr inbounds (double, ptr @glob.2, i64 1), i64 [[IV_LVER_ORIG]] 26; CHECK-NEXT: store double 0.000000e+00, ptr [[GEP_IV_1_LVER_ORIG]], align 8 27; CHECK-NEXT: store double 0.000000e+00, ptr [[DST_1]], align 8 28; CHECK-NEXT: [[PTR_IV_1_NEXT_LVER_ORIG]] = getelementptr inbounds double, ptr [[PTR_IV_1_LVER_ORIG]], i64 1 29; CHECK-NEXT: [[IV_NEXT_LVER_ORIG]] = add nuw nsw i64 [[IV_LVER_ORIG]], 1 30; CHECK-NEXT: [[EXITCOND_NOT_LVER_ORIG:%.*]] = icmp eq i64 [[IV_LVER_ORIG]], [[N]] 31; CHECK-NEXT: br i1 [[EXITCOND_NOT_LVER_ORIG]], label [[LOOP_2_PH_LOOPEXIT:%.*]], label [[LOOP_1_LVER_ORIG]] 32; CHECK: loop.1.ph: 33; CHECK-NEXT: [[LOAD_INITIAL:%.*]] = load double, ptr @glob.2, align 8 34; CHECK-NEXT: br label [[LOOP_1:%.*]] 35; CHECK: loop.1: 36; CHECK-NEXT: [[STORE_FORWARDED:%.*]] = phi double [ [[LOAD_INITIAL]], [[LOOP_1_PH]] ], [ 0.000000e+00, [[LOOP_1]] ] 37; CHECK-NEXT: [[IV:%.*]] = phi i64 [ 0, [[LOOP_1_PH]] ], [ [[IV_NEXT:%.*]], [[LOOP_1]] ] 38; CHECK-NEXT: [[PTR_IV_1:%.*]] = phi ptr [ @glob.1, [[LOOP_1_PH]] ], [ [[PTR_IV_1_NEXT:%.*]], [[LOOP_1]] ] 39; CHECK-NEXT: [[GEP_IV:%.*]] = getelementptr inbounds double, ptr @glob.2, i64 [[IV]] 40; CHECK-NEXT: [[L_1:%.*]] = load double, ptr [[GEP_IV]], align 8 41; CHECK-NEXT: [[GEP_IV_1:%.*]] = getelementptr inbounds double, ptr getelementptr inbounds (double, ptr @glob.2, i64 1), i64 [[IV]] 42; CHECK-NEXT: store double 0.000000e+00, ptr [[GEP_IV_1]], align 8 43; CHECK-NEXT: store double 0.000000e+00, ptr [[DST_1]], align 8 44; CHECK-NEXT: [[PTR_IV_1_NEXT]] = getelementptr inbounds double, ptr [[PTR_IV_1]], i64 1 45; CHECK-NEXT: [[IV_NEXT]] = add nuw nsw i64 [[IV]], 1 46; CHECK-NEXT: [[EXITCOND_NOT:%.*]] = icmp eq i64 [[IV]], [[N]] 47; CHECK-NEXT: br i1 [[EXITCOND_NOT]], label [[LOOP_2_PH_LOOPEXIT3:%.*]], label [[LOOP_1]] 48; CHECK: loop.2.ph.loopexit: 49; CHECK-NEXT: [[LCSSA_PTR_IV_1_PH:%.*]] = phi ptr [ [[PTR_IV_1_LVER_ORIG]], [[LOOP_1_LVER_ORIG]] ] 50; CHECK-NEXT: br label [[LOOP_2_PH:%.*]] 51; CHECK: loop.2.ph.loopexit3: 52; CHECK-NEXT: [[LCSSA_PTR_IV_1_PH4:%.*]] = phi ptr [ [[PTR_IV_1]], [[LOOP_1]] ] 53; CHECK-NEXT: br label [[LOOP_2_PH]] 54; CHECK: loop.2.ph: 55; CHECK-NEXT: [[LCSSA_PTR_IV_1:%.*]] = phi ptr [ [[LCSSA_PTR_IV_1_PH]], [[LOOP_2_PH_LOOPEXIT]] ], [ [[LCSSA_PTR_IV_1_PH4]], [[LOOP_2_PH_LOOPEXIT3]] ] 56; CHECK-NEXT: [[MIN_ITERS_CHECK:%.*]] = icmp ult i64 [[N]], 4 57; CHECK-NEXT: br i1 [[MIN_ITERS_CHECK]], label [[SCALAR_PH:%.*]], label [[VECTOR_PH:%.*]] 58; CHECK: vector.ph: 59; CHECK-NEXT: [[N_MOD_VF:%.*]] = urem i64 [[N]], 4 60; CHECK-NEXT: [[N_VEC:%.*]] = sub i64 [[N]], [[N_MOD_VF]] 61; CHECK-NEXT: [[TMP2:%.*]] = mul i64 [[N_VEC]], 8 62; CHECK-NEXT: [[IND_END:%.*]] = getelementptr i8, ptr [[LCSSA_PTR_IV_1]], i64 [[TMP2]] 63; CHECK-NEXT: br label [[VECTOR_BODY:%.*]] 64; CHECK: vector.body: 65; CHECK-NEXT: [[INDEX:%.*]] = phi i64 [ 0, [[VECTOR_PH]] ], [ [[INDEX_NEXT:%.*]], [[VECTOR_BODY]] ] 66; CHECK-NEXT: [[OFFSET_IDX:%.*]] = mul i64 [[INDEX]], 8 67; CHECK-NEXT: [[TMP4:%.*]] = add i64 [[OFFSET_IDX]], 0 68; CHECK-NEXT: [[NEXT_GEP:%.*]] = getelementptr i8, ptr [[LCSSA_PTR_IV_1]], i64 [[TMP4]] 69; CHECK-NEXT: [[TMP5:%.*]] = getelementptr double, ptr [[NEXT_GEP]], i32 0 70; CHECK-NEXT: store <4 x double> zeroinitializer, ptr [[TMP5]], align 8 71; CHECK-NEXT: [[INDEX_NEXT]] = add nuw i64 [[INDEX]], 4 72; CHECK-NEXT: [[TMP6:%.*]] = icmp eq i64 [[INDEX_NEXT]], [[N_VEC]] 73; CHECK-NEXT: br i1 [[TMP6]], label [[MIDDLE_BLOCK:%.*]], label [[VECTOR_BODY]], !llvm.loop [[LOOP0:![0-9]+]] 74; CHECK: middle.block: 75; CHECK-NEXT: [[CMP_N:%.*]] = icmp eq i64 [[N]], [[N_VEC]] 76; CHECK-NEXT: br i1 [[CMP_N]], label [[EXIT:%.*]], label [[SCALAR_PH]] 77; CHECK: scalar.ph: 78; CHECK-NEXT: [[BC_RESUME_VAL:%.*]] = phi i64 [ [[N_VEC]], [[MIDDLE_BLOCK]] ], [ 0, [[LOOP_2_PH]] ] 79; CHECK-NEXT: [[BC_RESUME_VAL1:%.*]] = phi ptr [ [[IND_END]], [[MIDDLE_BLOCK]] ], [ [[LCSSA_PTR_IV_1]], [[LOOP_2_PH]] ] 80; CHECK-NEXT: br label [[LOOP_2:%.*]] 81; CHECK: loop.2: 82; CHECK-NEXT: [[IV_2:%.*]] = phi i64 [ [[BC_RESUME_VAL]], [[SCALAR_PH]] ], [ [[IV_2_NEXT:%.*]], [[LOOP_2]] ] 83; CHECK-NEXT: [[PTR_IV_2:%.*]] = phi ptr [ [[BC_RESUME_VAL1]], [[SCALAR_PH]] ], [ [[PTR_IV_2_NEXT:%.*]], [[LOOP_2]] ] 84; CHECK-NEXT: store double 0.000000e+00, ptr [[PTR_IV_2]], align 8 85; CHECK-NEXT: [[PTR_IV_2_NEXT]] = getelementptr inbounds double, ptr [[PTR_IV_2]], i64 1 86; CHECK-NEXT: [[IV_2_NEXT]] = add nuw nsw i64 [[IV_2]], 1 87; CHECK-NEXT: [[EXITCOND_1_NOT:%.*]] = icmp eq i64 [[IV_2_NEXT]], [[N]] 88; CHECK-NEXT: br i1 [[EXITCOND_1_NOT]], label [[EXIT_LOOPEXIT:%.*]], label [[LOOP_2]], !llvm.loop [[LOOP2:![0-9]+]] 89; CHECK: exit.loopexit: 90; CHECK-NEXT: br label [[EXIT]] 91; CHECK: exit: 92; CHECK-NEXT: ret void 93; 94entry: 95 br label %loop.1 96 97loop.1: 98 %iv = phi i64 [ 0, %entry ], [ %iv.next, %loop.1 ] 99 %ptr.iv.1 = phi ptr [ @glob.1, %entry ], [ %ptr.iv.1.next, %loop.1 ] 100 %gep.iv = getelementptr inbounds double, ptr @glob.2, i64 %iv 101 %l.1 = load double, ptr %gep.iv, align 8 102 %gep.iv.1 = getelementptr inbounds double, ptr getelementptr inbounds (double, ptr @glob.2, i64 1), i64 %iv 103 store double 0.000000e+00, ptr %gep.iv.1, align 8 104 store double 0.000000e+00, ptr %dst.1, align 8 105 %ptr.iv.1.next = getelementptr inbounds double, ptr %ptr.iv.1, i64 1 106 %iv.next = add nuw nsw i64 %iv, 1 107 %exitcond.not = icmp eq i64 %iv, %N 108 br i1 %exitcond.not, label %loop.2.ph, label %loop.1 109 110loop.2.ph: 111 %lcssa.ptr.iv.1 = phi ptr [ %ptr.iv.1, %loop.1 ] 112 br label %loop.2 113 114loop.2: 115 %iv.2 = phi i64 [ 0, %loop.2.ph ] , [ %iv.2.next, %loop.2 ] 116 %ptr.iv.2 = phi ptr [ %lcssa.ptr.iv.1, %loop.2.ph ], [ %ptr.iv.2.next, %loop.2 ] 117 store double 0.000000e+00, ptr %ptr.iv.2, align 8 118 %ptr.iv.2.next = getelementptr inbounds double, ptr %ptr.iv.2, i64 1 119 %iv.2.next = add nuw nsw i64 %iv.2, 1 120 %exitcond.1.not = icmp eq i64 %iv.2.next, %N 121 br i1 %exitcond.1.not, label %exit, label %loop.2 122 123exit: 124 ret void 125} 126