1; NOTE: Assertions have been autogenerated by utils/update_test_checks.py 2; RUN: opt < %s -mattr=avx -force-vector-width=2 -force-vector-interleave=1 -passes=loop-vectorize,simplifycfg -simplifycfg-require-and-preserve-domtree=1 -S | FileCheck %s 3; RUN: opt -mcpu=skylake-avx512 -S -force-vector-width=8 -force-vector-interleave=1 -passes=loop-vectorize < %s | FileCheck %s --check-prefix=SINK-GATHER 4 5target datalayout = "e-p:64:64:64-i1:8:8-i8:8:8-i16:16:16-i32:32:32-i64:64:64-f32:32:32-f64:64:64-v64:64:64-v128:128:128-a0:0:64-s0:64:64-f80:128:128-n8:16:32:64-S128" 6target triple = "x86_64-apple-macosx10.8.0" 7 8; This test ensures that we don't scalarize the predicated load. Since the load 9; can be vectorized with predication, scalarizing it would cause its pointer 10; operand to become non-uniform. 11; 12define i32 @predicated_sdiv_masked_load(ptr %a, ptr %b, i32 %x, i1 %c) { 13; CHECK-LABEL: @predicated_sdiv_masked_load( 14; CHECK-NEXT: entry: 15; CHECK-NEXT: [[BROADCAST_SPLATINSERT:%.*]] = insertelement <2 x i1> poison, i1 [[C:%.*]], i64 0 16; CHECK-NEXT: [[BROADCAST_SPLAT:%.*]] = shufflevector <2 x i1> [[BROADCAST_SPLATINSERT]], <2 x i1> poison, <2 x i32> zeroinitializer 17; CHECK-NEXT: br label [[VECTOR_BODY:%.*]] 18; CHECK: vector.body: 19; CHECK-NEXT: [[INDEX:%.*]] = phi i64 [ 0, [[ENTRY:%.*]] ], [ [[INDEX_NEXT:%.*]], [[PRED_SDIV_CONTINUE2:%.*]] ] 20; CHECK-NEXT: [[VEC_PHI:%.*]] = phi <2 x i32> [ zeroinitializer, [[ENTRY]] ], [ [[TMP17:%.*]], [[PRED_SDIV_CONTINUE2]] ] 21; CHECK-NEXT: [[TMP0:%.*]] = add i64 [[INDEX]], 0 22; CHECK-NEXT: [[TMP1:%.*]] = getelementptr inbounds i32, ptr [[A:%.*]], i64 [[TMP0]] 23; CHECK-NEXT: [[TMP2:%.*]] = getelementptr inbounds i32, ptr [[TMP1]], i32 0 24; CHECK-NEXT: [[WIDE_LOAD:%.*]] = load <2 x i32>, ptr [[TMP2]], align 4 25; CHECK-NEXT: [[TMP3:%.*]] = getelementptr i32, ptr [[B:%.*]], i64 [[TMP0]] 26; CHECK-NEXT: [[TMP4:%.*]] = getelementptr i32, ptr [[TMP3]], i32 0 27; CHECK-NEXT: [[WIDE_MASKED_LOAD:%.*]] = call <2 x i32> @llvm.masked.load.v2i32.p0(ptr [[TMP4]], i32 4, <2 x i1> [[BROADCAST_SPLAT]], <2 x i32> poison) 28; CHECK-NEXT: br i1 [[C]], label [[PRED_SDIV_IF:%.*]], label [[PRED_SDIV_CONTINUE:%.*]] 29; CHECK: pred.sdiv.if: 30; CHECK-NEXT: [[TMP6:%.*]] = extractelement <2 x i32> [[WIDE_MASKED_LOAD]], i32 0 31; CHECK-NEXT: [[TMP7:%.*]] = sdiv i32 [[TMP6]], [[X:%.*]] 32; CHECK-NEXT: [[TMP8:%.*]] = insertelement <2 x i32> poison, i32 [[TMP7]], i32 0 33; CHECK-NEXT: br label [[PRED_SDIV_CONTINUE]] 34; CHECK: pred.sdiv.continue: 35; CHECK-NEXT: [[TMP9:%.*]] = phi <2 x i32> [ poison, [[VECTOR_BODY]] ], [ [[TMP8]], [[PRED_SDIV_IF]] ] 36; CHECK-NEXT: br i1 [[C]], label [[PRED_SDIV_IF1:%.*]], label [[PRED_SDIV_CONTINUE2]] 37; CHECK: pred.sdiv.if1: 38; CHECK-NEXT: [[TMP11:%.*]] = extractelement <2 x i32> [[WIDE_MASKED_LOAD]], i32 1 39; CHECK-NEXT: [[TMP12:%.*]] = sdiv i32 [[TMP11]], [[X]] 40; CHECK-NEXT: [[TMP13:%.*]] = insertelement <2 x i32> [[TMP9]], i32 [[TMP12]], i32 1 41; CHECK-NEXT: br label [[PRED_SDIV_CONTINUE2]] 42; CHECK: pred.sdiv.continue2: 43; CHECK-NEXT: [[TMP14:%.*]] = phi <2 x i32> [ [[TMP9]], [[PRED_SDIV_CONTINUE]] ], [ [[TMP13]], [[PRED_SDIV_IF1]] ] 44; CHECK-NEXT: [[TMP15:%.*]] = add nsw <2 x i32> [[TMP14]], [[WIDE_LOAD]] 45; CHECK-NEXT: [[PREDPHI:%.*]] = select <2 x i1> [[BROADCAST_SPLAT]], <2 x i32> [[TMP15]], <2 x i32> [[WIDE_LOAD]] 46; CHECK-NEXT: [[TMP17]] = add <2 x i32> [[VEC_PHI]], [[PREDPHI]] 47; CHECK-NEXT: [[INDEX_NEXT]] = add nuw i64 [[INDEX]], 2 48; CHECK-NEXT: [[TMP18:%.*]] = icmp eq i64 [[INDEX_NEXT]], 10000 49; CHECK-NEXT: br i1 [[TMP18]], label [[MIDDLE_BLOCK:%.*]], label [[VECTOR_BODY]], !llvm.loop [[LOOP0:![0-9]+]] 50; CHECK: middle.block: 51; CHECK-NEXT: [[TMP19:%.*]] = call i32 @llvm.vector.reduce.add.v2i32(<2 x i32> [[TMP17]]) 52; CHECK-NEXT: ret i32 [[TMP19]] 53; 54; SINK-GATHER-LABEL: @predicated_sdiv_masked_load( 55; SINK-GATHER-NEXT: entry: 56; SINK-GATHER-NEXT: br i1 false, label [[SCALAR_PH:%.*]], label [[VECTOR_PH:%.*]] 57; SINK-GATHER: vector.ph: 58; SINK-GATHER-NEXT: [[BROADCAST_SPLATINSERT:%.*]] = insertelement <8 x i1> poison, i1 [[C:%.*]], i64 0 59; SINK-GATHER-NEXT: [[BROADCAST_SPLAT:%.*]] = shufflevector <8 x i1> [[BROADCAST_SPLATINSERT]], <8 x i1> poison, <8 x i32> zeroinitializer 60; SINK-GATHER-NEXT: br label [[VECTOR_BODY:%.*]] 61; SINK-GATHER: vector.body: 62; SINK-GATHER-NEXT: [[INDEX:%.*]] = phi i64 [ 0, [[VECTOR_PH]] ], [ [[INDEX_NEXT:%.*]], [[PRED_SDIV_CONTINUE14:%.*]] ] 63; SINK-GATHER-NEXT: [[VEC_PHI:%.*]] = phi <8 x i32> [ zeroinitializer, [[VECTOR_PH]] ], [ [[TMP47:%.*]], [[PRED_SDIV_CONTINUE14]] ] 64; SINK-GATHER-NEXT: [[TMP0:%.*]] = add i64 [[INDEX]], 0 65; SINK-GATHER-NEXT: [[TMP1:%.*]] = getelementptr inbounds i32, ptr [[A:%.*]], i64 [[TMP0]] 66; SINK-GATHER-NEXT: [[TMP2:%.*]] = getelementptr inbounds i32, ptr [[TMP1]], i32 0 67; SINK-GATHER-NEXT: [[WIDE_LOAD:%.*]] = load <8 x i32>, ptr [[TMP2]], align 4 68; SINK-GATHER-NEXT: [[TMP3:%.*]] = getelementptr i32, ptr [[B:%.*]], i64 [[TMP0]] 69; SINK-GATHER-NEXT: [[TMP4:%.*]] = getelementptr i32, ptr [[TMP3]], i32 0 70; SINK-GATHER-NEXT: [[WIDE_MASKED_LOAD:%.*]] = call <8 x i32> @llvm.masked.load.v8i32.p0(ptr [[TMP4]], i32 4, <8 x i1> [[BROADCAST_SPLAT]], <8 x i32> poison) 71; SINK-GATHER-NEXT: br i1 [[C]], label [[PRED_SDIV_IF:%.*]], label [[PRED_SDIV_CONTINUE:%.*]] 72; SINK-GATHER: pred.sdiv.if: 73; SINK-GATHER-NEXT: [[TMP6:%.*]] = extractelement <8 x i32> [[WIDE_MASKED_LOAD]], i32 0 74; SINK-GATHER-NEXT: [[TMP7:%.*]] = sdiv i32 [[TMP6]], [[X:%.*]] 75; SINK-GATHER-NEXT: [[TMP8:%.*]] = insertelement <8 x i32> poison, i32 [[TMP7]], i32 0 76; SINK-GATHER-NEXT: br label [[PRED_SDIV_CONTINUE]] 77; SINK-GATHER: pred.sdiv.continue: 78; SINK-GATHER-NEXT: [[TMP9:%.*]] = phi <8 x i32> [ poison, [[VECTOR_BODY]] ], [ [[TMP8]], [[PRED_SDIV_IF]] ] 79; SINK-GATHER-NEXT: br i1 [[C]], label [[PRED_SDIV_IF1:%.*]], label [[PRED_SDIV_CONTINUE2:%.*]] 80; SINK-GATHER: pred.sdiv.if1: 81; SINK-GATHER-NEXT: [[TMP11:%.*]] = extractelement <8 x i32> [[WIDE_MASKED_LOAD]], i32 1 82; SINK-GATHER-NEXT: [[TMP12:%.*]] = sdiv i32 [[TMP11]], [[X]] 83; SINK-GATHER-NEXT: [[TMP13:%.*]] = insertelement <8 x i32> [[TMP9]], i32 [[TMP12]], i32 1 84; SINK-GATHER-NEXT: br label [[PRED_SDIV_CONTINUE2]] 85; SINK-GATHER: pred.sdiv.continue2: 86; SINK-GATHER-NEXT: [[TMP14:%.*]] = phi <8 x i32> [ [[TMP9]], [[PRED_SDIV_CONTINUE]] ], [ [[TMP13]], [[PRED_SDIV_IF1]] ] 87; SINK-GATHER-NEXT: br i1 [[C]], label [[PRED_SDIV_IF3:%.*]], label [[PRED_SDIV_CONTINUE4:%.*]] 88; SINK-GATHER: pred.sdiv.if3: 89; SINK-GATHER-NEXT: [[TMP16:%.*]] = extractelement <8 x i32> [[WIDE_MASKED_LOAD]], i32 2 90; SINK-GATHER-NEXT: [[TMP17:%.*]] = sdiv i32 [[TMP16]], [[X]] 91; SINK-GATHER-NEXT: [[TMP18:%.*]] = insertelement <8 x i32> [[TMP14]], i32 [[TMP17]], i32 2 92; SINK-GATHER-NEXT: br label [[PRED_SDIV_CONTINUE4]] 93; SINK-GATHER: pred.sdiv.continue4: 94; SINK-GATHER-NEXT: [[TMP19:%.*]] = phi <8 x i32> [ [[TMP14]], [[PRED_SDIV_CONTINUE2]] ], [ [[TMP18]], [[PRED_SDIV_IF3]] ] 95; SINK-GATHER-NEXT: br i1 [[C]], label [[PRED_SDIV_IF5:%.*]], label [[PRED_SDIV_CONTINUE6:%.*]] 96; SINK-GATHER: pred.sdiv.if5: 97; SINK-GATHER-NEXT: [[TMP21:%.*]] = extractelement <8 x i32> [[WIDE_MASKED_LOAD]], i32 3 98; SINK-GATHER-NEXT: [[TMP22:%.*]] = sdiv i32 [[TMP21]], [[X]] 99; SINK-GATHER-NEXT: [[TMP23:%.*]] = insertelement <8 x i32> [[TMP19]], i32 [[TMP22]], i32 3 100; SINK-GATHER-NEXT: br label [[PRED_SDIV_CONTINUE6]] 101; SINK-GATHER: pred.sdiv.continue6: 102; SINK-GATHER-NEXT: [[TMP24:%.*]] = phi <8 x i32> [ [[TMP19]], [[PRED_SDIV_CONTINUE4]] ], [ [[TMP23]], [[PRED_SDIV_IF5]] ] 103; SINK-GATHER-NEXT: br i1 [[C]], label [[PRED_SDIV_IF7:%.*]], label [[PRED_SDIV_CONTINUE8:%.*]] 104; SINK-GATHER: pred.sdiv.if7: 105; SINK-GATHER-NEXT: [[TMP26:%.*]] = extractelement <8 x i32> [[WIDE_MASKED_LOAD]], i32 4 106; SINK-GATHER-NEXT: [[TMP27:%.*]] = sdiv i32 [[TMP26]], [[X]] 107; SINK-GATHER-NEXT: [[TMP28:%.*]] = insertelement <8 x i32> [[TMP24]], i32 [[TMP27]], i32 4 108; SINK-GATHER-NEXT: br label [[PRED_SDIV_CONTINUE8]] 109; SINK-GATHER: pred.sdiv.continue8: 110; SINK-GATHER-NEXT: [[TMP29:%.*]] = phi <8 x i32> [ [[TMP24]], [[PRED_SDIV_CONTINUE6]] ], [ [[TMP28]], [[PRED_SDIV_IF7]] ] 111; SINK-GATHER-NEXT: br i1 [[C]], label [[PRED_SDIV_IF9:%.*]], label [[PRED_SDIV_CONTINUE10:%.*]] 112; SINK-GATHER: pred.sdiv.if9: 113; SINK-GATHER-NEXT: [[TMP31:%.*]] = extractelement <8 x i32> [[WIDE_MASKED_LOAD]], i32 5 114; SINK-GATHER-NEXT: [[TMP32:%.*]] = sdiv i32 [[TMP31]], [[X]] 115; SINK-GATHER-NEXT: [[TMP33:%.*]] = insertelement <8 x i32> [[TMP29]], i32 [[TMP32]], i32 5 116; SINK-GATHER-NEXT: br label [[PRED_SDIV_CONTINUE10]] 117; SINK-GATHER: pred.sdiv.continue10: 118; SINK-GATHER-NEXT: [[TMP34:%.*]] = phi <8 x i32> [ [[TMP29]], [[PRED_SDIV_CONTINUE8]] ], [ [[TMP33]], [[PRED_SDIV_IF9]] ] 119; SINK-GATHER-NEXT: br i1 [[C]], label [[PRED_SDIV_IF11:%.*]], label [[PRED_SDIV_CONTINUE12:%.*]] 120; SINK-GATHER: pred.sdiv.if11: 121; SINK-GATHER-NEXT: [[TMP36:%.*]] = extractelement <8 x i32> [[WIDE_MASKED_LOAD]], i32 6 122; SINK-GATHER-NEXT: [[TMP37:%.*]] = sdiv i32 [[TMP36]], [[X]] 123; SINK-GATHER-NEXT: [[TMP38:%.*]] = insertelement <8 x i32> [[TMP34]], i32 [[TMP37]], i32 6 124; SINK-GATHER-NEXT: br label [[PRED_SDIV_CONTINUE12]] 125; SINK-GATHER: pred.sdiv.continue12: 126; SINK-GATHER-NEXT: [[TMP39:%.*]] = phi <8 x i32> [ [[TMP34]], [[PRED_SDIV_CONTINUE10]] ], [ [[TMP38]], [[PRED_SDIV_IF11]] ] 127; SINK-GATHER-NEXT: br i1 [[C]], label [[PRED_SDIV_IF13:%.*]], label [[PRED_SDIV_CONTINUE14]] 128; SINK-GATHER: pred.sdiv.if13: 129; SINK-GATHER-NEXT: [[TMP41:%.*]] = extractelement <8 x i32> [[WIDE_MASKED_LOAD]], i32 7 130; SINK-GATHER-NEXT: [[TMP42:%.*]] = sdiv i32 [[TMP41]], [[X]] 131; SINK-GATHER-NEXT: [[TMP43:%.*]] = insertelement <8 x i32> [[TMP39]], i32 [[TMP42]], i32 7 132; SINK-GATHER-NEXT: br label [[PRED_SDIV_CONTINUE14]] 133; SINK-GATHER: pred.sdiv.continue14: 134; SINK-GATHER-NEXT: [[TMP44:%.*]] = phi <8 x i32> [ [[TMP39]], [[PRED_SDIV_CONTINUE12]] ], [ [[TMP43]], [[PRED_SDIV_IF13]] ] 135; SINK-GATHER-NEXT: [[TMP45:%.*]] = add nsw <8 x i32> [[TMP44]], [[WIDE_LOAD]] 136; SINK-GATHER-NEXT: [[PREDPHI:%.*]] = select <8 x i1> [[BROADCAST_SPLAT]], <8 x i32> [[TMP45]], <8 x i32> [[WIDE_LOAD]] 137; SINK-GATHER-NEXT: [[TMP47]] = add <8 x i32> [[VEC_PHI]], [[PREDPHI]] 138; SINK-GATHER-NEXT: [[INDEX_NEXT]] = add nuw i64 [[INDEX]], 8 139; SINK-GATHER-NEXT: [[TMP48:%.*]] = icmp eq i64 [[INDEX_NEXT]], 10000 140; SINK-GATHER-NEXT: br i1 [[TMP48]], label [[MIDDLE_BLOCK:%.*]], label [[VECTOR_BODY]], !llvm.loop [[LOOP0:![0-9]+]] 141; SINK-GATHER: middle.block: 142; SINK-GATHER-NEXT: [[TMP49:%.*]] = call i32 @llvm.vector.reduce.add.v8i32(<8 x i32> [[TMP47]]) 143; SINK-GATHER-NEXT: br i1 true, label [[FOR_END:%.*]], label [[SCALAR_PH]] 144; SINK-GATHER: scalar.ph: 145; SINK-GATHER-NEXT: [[BC_RESUME_VAL:%.*]] = phi i64 [ 10000, [[MIDDLE_BLOCK]] ], [ 0, [[ENTRY:%.*]] ] 146; SINK-GATHER-NEXT: [[BC_MERGE_RDX:%.*]] = phi i32 [ [[TMP49]], [[MIDDLE_BLOCK]] ], [ 0, [[ENTRY]] ] 147; SINK-GATHER-NEXT: br label [[FOR_BODY:%.*]] 148; SINK-GATHER: for.body: 149; SINK-GATHER-NEXT: [[I:%.*]] = phi i64 [ [[BC_RESUME_VAL]], [[SCALAR_PH]] ], [ [[I_NEXT:%.*]], [[FOR_INC:%.*]] ] 150; SINK-GATHER-NEXT: [[R:%.*]] = phi i32 [ [[BC_MERGE_RDX]], [[SCALAR_PH]] ], [ [[T7:%.*]], [[FOR_INC]] ] 151; SINK-GATHER-NEXT: [[T0:%.*]] = getelementptr inbounds i32, ptr [[A]], i64 [[I]] 152; SINK-GATHER-NEXT: [[T1:%.*]] = load i32, ptr [[T0]], align 4 153; SINK-GATHER-NEXT: br i1 [[C]], label [[IF_THEN:%.*]], label [[FOR_INC]] 154; SINK-GATHER: if.then: 155; SINK-GATHER-NEXT: [[T2:%.*]] = getelementptr inbounds i32, ptr [[B]], i64 [[I]] 156; SINK-GATHER-NEXT: [[T3:%.*]] = load i32, ptr [[T2]], align 4 157; SINK-GATHER-NEXT: [[T4:%.*]] = sdiv i32 [[T3]], [[X]] 158; SINK-GATHER-NEXT: [[T5:%.*]] = add nsw i32 [[T4]], [[T1]] 159; SINK-GATHER-NEXT: br label [[FOR_INC]] 160; SINK-GATHER: for.inc: 161; SINK-GATHER-NEXT: [[T6:%.*]] = phi i32 [ [[T1]], [[FOR_BODY]] ], [ [[T5]], [[IF_THEN]] ] 162; SINK-GATHER-NEXT: [[T7]] = add i32 [[R]], [[T6]] 163; SINK-GATHER-NEXT: [[I_NEXT]] = add nuw nsw i64 [[I]], 1 164; SINK-GATHER-NEXT: [[COND:%.*]] = icmp eq i64 [[I_NEXT]], 10000 165; SINK-GATHER-NEXT: br i1 [[COND]], label [[FOR_END]], label [[FOR_BODY]], !llvm.loop [[LOOP3:![0-9]+]] 166; SINK-GATHER: for.end: 167; SINK-GATHER-NEXT: [[T8:%.*]] = phi i32 [ [[T7]], [[FOR_INC]] ], [ [[TMP49]], [[MIDDLE_BLOCK]] ] 168; SINK-GATHER-NEXT: ret i32 [[T8]] 169; 170entry: 171 br label %for.body 172 173for.body: 174 %i = phi i64 [ 0, %entry ], [ %i.next, %for.inc ] 175 %r = phi i32 [ 0, %entry ], [ %t7, %for.inc ] 176 %t0 = getelementptr inbounds i32, ptr %a, i64 %i 177 %t1 = load i32, ptr %t0, align 4 178 br i1 %c, label %if.then, label %for.inc 179 180if.then: 181 %t2 = getelementptr inbounds i32, ptr %b, i64 %i 182 %t3 = load i32, ptr %t2, align 4 183 %t4 = sdiv i32 %t3, %x 184 %t5 = add nsw i32 %t4, %t1 185 br label %for.inc 186 187for.inc: 188 %t6 = phi i32 [ %t1, %for.body ], [ %t5, %if.then] 189 %t7 = add i32 %r, %t6 190 %i.next = add nuw nsw i64 %i, 1 191 %cond = icmp eq i64 %i.next, 10000 192 br i1 %cond, label %for.end, label %for.body 193 194for.end: 195 %t8 = phi i32 [ %t7, %for.inc ] 196 ret i32 %t8 197} 198 199; This test ensures that a load, which would have been widened otherwise is 200; instead scalarized if Cost-Model so decided as part of its 201; sink-scalar-operands optimization for predicated instructions. 202define i32 @scalarize_and_sink_gather(ptr %a, i1 %c, i32 %x, i64 %n) { 203; CHECK-LABEL: @scalarize_and_sink_gather( 204; CHECK-NEXT: entry: 205; CHECK-NEXT: [[SMAX:%.*]] = call i64 @llvm.smax.i64(i64 [[N:%.*]], i64 1) 206; CHECK-NEXT: [[MIN_ITERS_CHECK:%.*]] = icmp ult i64 [[SMAX]], 2 207; CHECK-NEXT: br i1 [[MIN_ITERS_CHECK]], label [[SCALAR_PH:%.*]], label [[VECTOR_PH:%.*]] 208; CHECK: vector.ph: 209; CHECK-NEXT: [[N_MOD_VF:%.*]] = urem i64 [[SMAX]], 2 210; CHECK-NEXT: [[N_VEC:%.*]] = sub i64 [[SMAX]], [[N_MOD_VF]] 211; CHECK-NEXT: [[BROADCAST_SPLATINSERT3:%.*]] = insertelement <2 x i32> poison, i32 [[X:%.*]], i64 0 212; CHECK-NEXT: [[BROADCAST_SPLAT4:%.*]] = shufflevector <2 x i32> [[BROADCAST_SPLATINSERT3]], <2 x i32> poison, <2 x i32> zeroinitializer 213; CHECK-NEXT: [[BROADCAST_SPLATINSERT4:%.*]] = insertelement <2 x i1> poison, i1 [[TMP1:%.*]], i64 0 214; CHECK-NEXT: [[BROADCAST_SPLAT:%.*]] = shufflevector <2 x i1> [[BROADCAST_SPLATINSERT4]], <2 x i1> poison, <2 x i32> zeroinitializer 215; CHECK-NEXT: br label [[VECTOR_BODY:%.*]] 216; CHECK: vector.body: 217; CHECK-NEXT: [[INDEX:%.*]] = phi i64 [ 0, [[VECTOR_PH]] ], [ [[INDEX_NEXT:%.*]], [[PRED_UDIV_CONTINUE2:%.*]] ] 218; CHECK-NEXT: [[VEC_IND:%.*]] = phi <2 x i64> [ <i64 0, i64 1>, [[VECTOR_PH]] ], [ [[VEC_IND_NEXT:%.*]], [[PRED_UDIV_CONTINUE2]] ] 219; CHECK-NEXT: [[VEC_PHI:%.*]] = phi <2 x i32> [ zeroinitializer, [[VECTOR_PH]] ], [ [[TMP18:%.*]], [[PRED_UDIV_CONTINUE2]] ] 220; CHECK-NEXT: [[TMP0:%.*]] = mul <2 x i64> [[VEC_IND]], splat (i64 777) 221; CHECK-NEXT: br i1 [[TMP1]], label [[PRED_UDIV_IF:%.*]], label [[PRED_UDIV_CONTINUE:%.*]] 222; CHECK: pred.udiv.if: 223; CHECK-NEXT: [[TMP2:%.*]] = extractelement <2 x i64> [[TMP0]], i32 0 224; CHECK-NEXT: [[TMP3:%.*]] = getelementptr inbounds i32, ptr [[A:%.*]], i64 [[TMP2]] 225; CHECK-NEXT: [[TMP4:%.*]] = load i32, ptr [[TMP3]], align 4 226; CHECK-NEXT: [[TMP5:%.*]] = udiv i32 [[TMP4]], [[X]] 227; CHECK-NEXT: [[TMP6:%.*]] = insertelement <2 x i32> poison, i32 [[TMP5]], i32 0 228; CHECK-NEXT: br label [[PRED_UDIV_CONTINUE]] 229; CHECK: pred.udiv.continue: 230; CHECK-NEXT: [[TMP8:%.*]] = phi <2 x i32> [ poison, [[VECTOR_BODY]] ], [ [[TMP6]], [[PRED_UDIV_IF]] ] 231; CHECK-NEXT: br i1 [[TMP1]], label [[PRED_UDIV_IF1:%.*]], label [[PRED_UDIV_CONTINUE2]] 232; CHECK: pred.udiv.if1: 233; CHECK-NEXT: [[TMP10:%.*]] = extractelement <2 x i64> [[TMP0]], i32 1 234; CHECK-NEXT: [[TMP11:%.*]] = getelementptr inbounds i32, ptr [[A]], i64 [[TMP10]] 235; CHECK-NEXT: [[TMP12:%.*]] = load i32, ptr [[TMP11]], align 4 236; CHECK-NEXT: [[TMP13:%.*]] = udiv i32 [[TMP12]], [[X]] 237; CHECK-NEXT: [[TMP14:%.*]] = insertelement <2 x i32> [[TMP8]], i32 [[TMP13]], i32 1 238; CHECK-NEXT: br label [[PRED_UDIV_CONTINUE2]] 239; CHECK: pred.udiv.continue2: 240; CHECK-NEXT: [[TMP16:%.*]] = phi <2 x i32> [ [[TMP8]], [[PRED_UDIV_CONTINUE]] ], [ [[TMP14]], [[PRED_UDIV_IF1]] ] 241; CHECK-NEXT: [[PREDPHI:%.*]] = select <2 x i1> [[BROADCAST_SPLAT]], <2 x i32> [[TMP16]], <2 x i32> [[BROADCAST_SPLAT4]] 242; CHECK-NEXT: [[TMP18]] = add <2 x i32> [[VEC_PHI]], [[PREDPHI]] 243; CHECK-NEXT: [[INDEX_NEXT]] = add nuw i64 [[INDEX]], 2 244; CHECK-NEXT: [[VEC_IND_NEXT]] = add <2 x i64> [[VEC_IND]], splat (i64 2) 245; CHECK-NEXT: [[TMP19:%.*]] = icmp eq i64 [[INDEX_NEXT]], [[N_VEC]] 246; CHECK-NEXT: br i1 [[TMP19]], label [[MIDDLE_BLOCK:%.*]], label [[VECTOR_BODY]], !llvm.loop [[LOOP3:![0-9]+]] 247; CHECK: middle.block: 248; CHECK-NEXT: [[TMP20:%.*]] = call i32 @llvm.vector.reduce.add.v2i32(<2 x i32> [[TMP18]]) 249; CHECK-NEXT: [[CMP_N:%.*]] = icmp eq i64 [[SMAX]], [[N_VEC]] 250; CHECK-NEXT: br i1 [[CMP_N]], label [[FOR_END:%.*]], label [[SCALAR_PH]] 251; CHECK: scalar.ph: 252; CHECK-NEXT: [[BC_RESUME_VAL:%.*]] = phi i64 [ [[N_VEC]], [[MIDDLE_BLOCK]] ], [ 0, [[ENTRY:%.*]] ] 253; CHECK-NEXT: [[BC_MERGE_RDX:%.*]] = phi i32 [ [[TMP20]], [[MIDDLE_BLOCK]] ], [ 0, [[ENTRY]] ] 254; CHECK-NEXT: br label [[FOR_BODY:%.*]] 255; CHECK: for.body: 256; CHECK-NEXT: [[I:%.*]] = phi i64 [ [[BC_RESUME_VAL]], [[SCALAR_PH]] ], [ [[I_NEXT:%.*]], [[FOR_INC:%.*]] ] 257; CHECK-NEXT: [[R:%.*]] = phi i32 [ [[BC_MERGE_RDX]], [[SCALAR_PH]] ], [ [[T6:%.*]], [[FOR_INC]] ] 258; CHECK-NEXT: [[I7:%.*]] = mul i64 [[I]], 777 259; CHECK-NEXT: br i1 [[TMP1]], label [[IF_THEN:%.*]], label [[FOR_INC]] 260; CHECK: if.then: 261; CHECK-NEXT: [[T0:%.*]] = getelementptr inbounds i32, ptr [[A]], i64 [[I7]] 262; CHECK-NEXT: [[T2:%.*]] = load i32, ptr [[T0]], align 4 263; CHECK-NEXT: [[T4:%.*]] = udiv i32 [[T2]], [[X]] 264; CHECK-NEXT: br label [[FOR_INC]] 265; CHECK: for.inc: 266; CHECK-NEXT: [[T5:%.*]] = phi i32 [ [[X]], [[FOR_BODY]] ], [ [[T4]], [[IF_THEN]] ] 267; CHECK-NEXT: [[T6]] = add i32 [[R]], [[T5]] 268; CHECK-NEXT: [[I_NEXT]] = add nuw nsw i64 [[I]], 1 269; CHECK-NEXT: [[COND:%.*]] = icmp slt i64 [[I_NEXT]], [[N]] 270; CHECK-NEXT: br i1 [[COND]], label [[FOR_BODY]], label [[FOR_END]], !llvm.loop [[LOOP4:![0-9]+]] 271; CHECK: for.end: 272; CHECK-NEXT: [[T7:%.*]] = phi i32 [ [[T6]], [[FOR_INC]] ], [ [[TMP20]], [[MIDDLE_BLOCK]] ] 273; CHECK-NEXT: ret i32 [[T7]] 274; 275; SINK-GATHER-LABEL: @scalarize_and_sink_gather( 276; SINK-GATHER-NEXT: entry: 277; SINK-GATHER-NEXT: [[SMAX:%.*]] = call i64 @llvm.smax.i64(i64 [[N:%.*]], i64 1) 278; SINK-GATHER-NEXT: [[MIN_ITERS_CHECK:%.*]] = icmp ult i64 [[SMAX]], 8 279; SINK-GATHER-NEXT: br i1 [[MIN_ITERS_CHECK]], label [[SCALAR_PH:%.*]], label [[VECTOR_PH:%.*]] 280; SINK-GATHER: vector.ph: 281; SINK-GATHER-NEXT: [[N_MOD_VF:%.*]] = urem i64 [[SMAX]], 8 282; SINK-GATHER-NEXT: [[N_VEC:%.*]] = sub i64 [[SMAX]], [[N_MOD_VF]] 283; SINK-GATHER-NEXT: [[BROADCAST_SPLATINSERT15:%.*]] = insertelement <8 x i32> poison, i32 [[X:%.*]], i64 0 284; SINK-GATHER-NEXT: [[BROADCAST_SPLAT16:%.*]] = shufflevector <8 x i32> [[BROADCAST_SPLATINSERT15]], <8 x i32> poison, <8 x i32> zeroinitializer 285; SINK-GATHER-NEXT: [[BROADCAST_SPLATINSERT16:%.*]] = insertelement <8 x i1> poison, i1 [[TMP1:%.*]], i64 0 286; SINK-GATHER-NEXT: [[BROADCAST_SPLAT:%.*]] = shufflevector <8 x i1> [[BROADCAST_SPLATINSERT16]], <8 x i1> poison, <8 x i32> zeroinitializer 287; SINK-GATHER-NEXT: br label [[VECTOR_BODY:%.*]] 288; SINK-GATHER: vector.body: 289; SINK-GATHER-NEXT: [[INDEX:%.*]] = phi i64 [ 0, [[VECTOR_PH]] ], [ [[INDEX_NEXT:%.*]], [[PRED_UDIV_CONTINUE14:%.*]] ] 290; SINK-GATHER-NEXT: [[VEC_IND:%.*]] = phi <8 x i64> [ <i64 0, i64 1, i64 2, i64 3, i64 4, i64 5, i64 6, i64 7>, [[VECTOR_PH]] ], [ [[VEC_IND_NEXT:%.*]], [[PRED_UDIV_CONTINUE14]] ] 291; SINK-GATHER-NEXT: [[VEC_PHI:%.*]] = phi <8 x i32> [ zeroinitializer, [[VECTOR_PH]] ], [ [[TMP66:%.*]], [[PRED_UDIV_CONTINUE14]] ] 292; SINK-GATHER-NEXT: [[TMP0:%.*]] = mul <8 x i64> [[VEC_IND]], splat (i64 777) 293; SINK-GATHER-NEXT: br i1 [[TMP1]], label [[PRED_UDIV_IF:%.*]], label [[PRED_UDIV_CONTINUE:%.*]] 294; SINK-GATHER: pred.udiv.if: 295; SINK-GATHER-NEXT: [[TMP2:%.*]] = extractelement <8 x i64> [[TMP0]], i32 0 296; SINK-GATHER-NEXT: [[TMP3:%.*]] = getelementptr inbounds i32, ptr [[A:%.*]], i64 [[TMP2]] 297; SINK-GATHER-NEXT: [[TMP4:%.*]] = load i32, ptr [[TMP3]], align 4 298; SINK-GATHER-NEXT: [[TMP5:%.*]] = udiv i32 [[TMP4]], [[X]] 299; SINK-GATHER-NEXT: [[TMP6:%.*]] = insertelement <8 x i32> poison, i32 [[TMP5]], i32 0 300; SINK-GATHER-NEXT: br label [[PRED_UDIV_CONTINUE]] 301; SINK-GATHER: pred.udiv.continue: 302; SINK-GATHER-NEXT: [[TMP8:%.*]] = phi <8 x i32> [ poison, [[VECTOR_BODY]] ], [ [[TMP6]], [[PRED_UDIV_IF]] ] 303; SINK-GATHER-NEXT: br i1 [[TMP1]], label [[PRED_UDIV_IF1:%.*]], label [[PRED_UDIV_CONTINUE2:%.*]] 304; SINK-GATHER: pred.udiv.if1: 305; SINK-GATHER-NEXT: [[TMP10:%.*]] = extractelement <8 x i64> [[TMP0]], i32 1 306; SINK-GATHER-NEXT: [[TMP11:%.*]] = getelementptr inbounds i32, ptr [[A]], i64 [[TMP10]] 307; SINK-GATHER-NEXT: [[TMP12:%.*]] = load i32, ptr [[TMP11]], align 4 308; SINK-GATHER-NEXT: [[TMP13:%.*]] = udiv i32 [[TMP12]], [[X]] 309; SINK-GATHER-NEXT: [[TMP14:%.*]] = insertelement <8 x i32> [[TMP8]], i32 [[TMP13]], i32 1 310; SINK-GATHER-NEXT: br label [[PRED_UDIV_CONTINUE2]] 311; SINK-GATHER: pred.udiv.continue2: 312; SINK-GATHER-NEXT: [[TMP16:%.*]] = phi <8 x i32> [ [[TMP8]], [[PRED_UDIV_CONTINUE]] ], [ [[TMP14]], [[PRED_UDIV_IF1]] ] 313; SINK-GATHER-NEXT: br i1 [[TMP1]], label [[PRED_UDIV_IF3:%.*]], label [[PRED_UDIV_CONTINUE4:%.*]] 314; SINK-GATHER: pred.udiv.if3: 315; SINK-GATHER-NEXT: [[TMP18:%.*]] = extractelement <8 x i64> [[TMP0]], i32 2 316; SINK-GATHER-NEXT: [[TMP19:%.*]] = getelementptr inbounds i32, ptr [[A]], i64 [[TMP18]] 317; SINK-GATHER-NEXT: [[TMP20:%.*]] = load i32, ptr [[TMP19]], align 4 318; SINK-GATHER-NEXT: [[TMP21:%.*]] = udiv i32 [[TMP20]], [[X]] 319; SINK-GATHER-NEXT: [[TMP22:%.*]] = insertelement <8 x i32> [[TMP16]], i32 [[TMP21]], i32 2 320; SINK-GATHER-NEXT: br label [[PRED_UDIV_CONTINUE4]] 321; SINK-GATHER: pred.udiv.continue4: 322; SINK-GATHER-NEXT: [[TMP24:%.*]] = phi <8 x i32> [ [[TMP16]], [[PRED_UDIV_CONTINUE2]] ], [ [[TMP22]], [[PRED_UDIV_IF3]] ] 323; SINK-GATHER-NEXT: br i1 [[TMP1]], label [[PRED_UDIV_IF5:%.*]], label [[PRED_UDIV_CONTINUE6:%.*]] 324; SINK-GATHER: pred.udiv.if5: 325; SINK-GATHER-NEXT: [[TMP26:%.*]] = extractelement <8 x i64> [[TMP0]], i32 3 326; SINK-GATHER-NEXT: [[TMP27:%.*]] = getelementptr inbounds i32, ptr [[A]], i64 [[TMP26]] 327; SINK-GATHER-NEXT: [[TMP28:%.*]] = load i32, ptr [[TMP27]], align 4 328; SINK-GATHER-NEXT: [[TMP29:%.*]] = udiv i32 [[TMP28]], [[X]] 329; SINK-GATHER-NEXT: [[TMP30:%.*]] = insertelement <8 x i32> [[TMP24]], i32 [[TMP29]], i32 3 330; SINK-GATHER-NEXT: br label [[PRED_UDIV_CONTINUE6]] 331; SINK-GATHER: pred.udiv.continue6: 332; SINK-GATHER-NEXT: [[TMP32:%.*]] = phi <8 x i32> [ [[TMP24]], [[PRED_UDIV_CONTINUE4]] ], [ [[TMP30]], [[PRED_UDIV_IF5]] ] 333; SINK-GATHER-NEXT: br i1 [[TMP1]], label [[PRED_UDIV_IF7:%.*]], label [[PRED_UDIV_CONTINUE8:%.*]] 334; SINK-GATHER: pred.udiv.if7: 335; SINK-GATHER-NEXT: [[TMP34:%.*]] = extractelement <8 x i64> [[TMP0]], i32 4 336; SINK-GATHER-NEXT: [[TMP35:%.*]] = getelementptr inbounds i32, ptr [[A]], i64 [[TMP34]] 337; SINK-GATHER-NEXT: [[TMP36:%.*]] = load i32, ptr [[TMP35]], align 4 338; SINK-GATHER-NEXT: [[TMP37:%.*]] = udiv i32 [[TMP36]], [[X]] 339; SINK-GATHER-NEXT: [[TMP38:%.*]] = insertelement <8 x i32> [[TMP32]], i32 [[TMP37]], i32 4 340; SINK-GATHER-NEXT: br label [[PRED_UDIV_CONTINUE8]] 341; SINK-GATHER: pred.udiv.continue8: 342; SINK-GATHER-NEXT: [[TMP40:%.*]] = phi <8 x i32> [ [[TMP32]], [[PRED_UDIV_CONTINUE6]] ], [ [[TMP38]], [[PRED_UDIV_IF7]] ] 343; SINK-GATHER-NEXT: br i1 [[TMP1]], label [[PRED_UDIV_IF9:%.*]], label [[PRED_UDIV_CONTINUE10:%.*]] 344; SINK-GATHER: pred.udiv.if9: 345; SINK-GATHER-NEXT: [[TMP42:%.*]] = extractelement <8 x i64> [[TMP0]], i32 5 346; SINK-GATHER-NEXT: [[TMP43:%.*]] = getelementptr inbounds i32, ptr [[A]], i64 [[TMP42]] 347; SINK-GATHER-NEXT: [[TMP44:%.*]] = load i32, ptr [[TMP43]], align 4 348; SINK-GATHER-NEXT: [[TMP45:%.*]] = udiv i32 [[TMP44]], [[X]] 349; SINK-GATHER-NEXT: [[TMP46:%.*]] = insertelement <8 x i32> [[TMP40]], i32 [[TMP45]], i32 5 350; SINK-GATHER-NEXT: br label [[PRED_UDIV_CONTINUE10]] 351; SINK-GATHER: pred.udiv.continue10: 352; SINK-GATHER-NEXT: [[TMP48:%.*]] = phi <8 x i32> [ [[TMP40]], [[PRED_UDIV_CONTINUE8]] ], [ [[TMP46]], [[PRED_UDIV_IF9]] ] 353; SINK-GATHER-NEXT: br i1 [[TMP1]], label [[PRED_UDIV_IF11:%.*]], label [[PRED_UDIV_CONTINUE12:%.*]] 354; SINK-GATHER: pred.udiv.if11: 355; SINK-GATHER-NEXT: [[TMP50:%.*]] = extractelement <8 x i64> [[TMP0]], i32 6 356; SINK-GATHER-NEXT: [[TMP51:%.*]] = getelementptr inbounds i32, ptr [[A]], i64 [[TMP50]] 357; SINK-GATHER-NEXT: [[TMP52:%.*]] = load i32, ptr [[TMP51]], align 4 358; SINK-GATHER-NEXT: [[TMP53:%.*]] = udiv i32 [[TMP52]], [[X]] 359; SINK-GATHER-NEXT: [[TMP54:%.*]] = insertelement <8 x i32> [[TMP48]], i32 [[TMP53]], i32 6 360; SINK-GATHER-NEXT: br label [[PRED_UDIV_CONTINUE12]] 361; SINK-GATHER: pred.udiv.continue12: 362; SINK-GATHER-NEXT: [[TMP56:%.*]] = phi <8 x i32> [ [[TMP48]], [[PRED_UDIV_CONTINUE10]] ], [ [[TMP54]], [[PRED_UDIV_IF11]] ] 363; SINK-GATHER-NEXT: br i1 [[TMP1]], label [[PRED_UDIV_IF13:%.*]], label [[PRED_UDIV_CONTINUE14]] 364; SINK-GATHER: pred.udiv.if13: 365; SINK-GATHER-NEXT: [[TMP58:%.*]] = extractelement <8 x i64> [[TMP0]], i32 7 366; SINK-GATHER-NEXT: [[TMP59:%.*]] = getelementptr inbounds i32, ptr [[A]], i64 [[TMP58]] 367; SINK-GATHER-NEXT: [[TMP60:%.*]] = load i32, ptr [[TMP59]], align 4 368; SINK-GATHER-NEXT: [[TMP61:%.*]] = udiv i32 [[TMP60]], [[X]] 369; SINK-GATHER-NEXT: [[TMP62:%.*]] = insertelement <8 x i32> [[TMP56]], i32 [[TMP61]], i32 7 370; SINK-GATHER-NEXT: br label [[PRED_UDIV_CONTINUE14]] 371; SINK-GATHER: pred.udiv.continue14: 372; SINK-GATHER-NEXT: [[TMP64:%.*]] = phi <8 x i32> [ [[TMP56]], [[PRED_UDIV_CONTINUE12]] ], [ [[TMP62]], [[PRED_UDIV_IF13]] ] 373; SINK-GATHER-NEXT: [[PREDPHI:%.*]] = select <8 x i1> [[BROADCAST_SPLAT]], <8 x i32> [[TMP64]], <8 x i32> [[BROADCAST_SPLAT16]] 374; SINK-GATHER-NEXT: [[TMP66]] = add <8 x i32> [[VEC_PHI]], [[PREDPHI]] 375; SINK-GATHER-NEXT: [[INDEX_NEXT]] = add nuw i64 [[INDEX]], 8 376; SINK-GATHER-NEXT: [[VEC_IND_NEXT]] = add <8 x i64> [[VEC_IND]], splat (i64 8) 377; SINK-GATHER-NEXT: [[TMP67:%.*]] = icmp eq i64 [[INDEX_NEXT]], [[N_VEC]] 378; SINK-GATHER-NEXT: br i1 [[TMP67]], label [[MIDDLE_BLOCK:%.*]], label [[VECTOR_BODY]], !llvm.loop [[LOOP4:![0-9]+]] 379; SINK-GATHER: middle.block: 380; SINK-GATHER-NEXT: [[TMP68:%.*]] = call i32 @llvm.vector.reduce.add.v8i32(<8 x i32> [[TMP66]]) 381; SINK-GATHER-NEXT: [[CMP_N:%.*]] = icmp eq i64 [[SMAX]], [[N_VEC]] 382; SINK-GATHER-NEXT: br i1 [[CMP_N]], label [[FOR_END:%.*]], label [[SCALAR_PH]] 383; SINK-GATHER: scalar.ph: 384; SINK-GATHER-NEXT: [[BC_RESUME_VAL:%.*]] = phi i64 [ [[N_VEC]], [[MIDDLE_BLOCK]] ], [ 0, [[ENTRY:%.*]] ] 385; SINK-GATHER-NEXT: [[BC_MERGE_RDX:%.*]] = phi i32 [ [[TMP68]], [[MIDDLE_BLOCK]] ], [ 0, [[ENTRY]] ] 386; SINK-GATHER-NEXT: br label [[FOR_BODY:%.*]] 387; SINK-GATHER: for.body: 388; SINK-GATHER-NEXT: [[I:%.*]] = phi i64 [ [[BC_RESUME_VAL]], [[SCALAR_PH]] ], [ [[I_NEXT:%.*]], [[FOR_INC:%.*]] ] 389; SINK-GATHER-NEXT: [[R:%.*]] = phi i32 [ [[BC_MERGE_RDX]], [[SCALAR_PH]] ], [ [[T6:%.*]], [[FOR_INC]] ] 390; SINK-GATHER-NEXT: [[I7:%.*]] = mul i64 [[I]], 777 391; SINK-GATHER-NEXT: br i1 [[TMP1]], label [[IF_THEN:%.*]], label [[FOR_INC]] 392; SINK-GATHER: if.then: 393; SINK-GATHER-NEXT: [[T0:%.*]] = getelementptr inbounds i32, ptr [[A]], i64 [[I7]] 394; SINK-GATHER-NEXT: [[T2:%.*]] = load i32, ptr [[T0]], align 4 395; SINK-GATHER-NEXT: [[T4:%.*]] = udiv i32 [[T2]], [[X]] 396; SINK-GATHER-NEXT: br label [[FOR_INC]] 397; SINK-GATHER: for.inc: 398; SINK-GATHER-NEXT: [[T5:%.*]] = phi i32 [ [[X]], [[FOR_BODY]] ], [ [[T4]], [[IF_THEN]] ] 399; SINK-GATHER-NEXT: [[T6]] = add i32 [[R]], [[T5]] 400; SINK-GATHER-NEXT: [[I_NEXT]] = add nuw nsw i64 [[I]], 1 401; SINK-GATHER-NEXT: [[COND:%.*]] = icmp slt i64 [[I_NEXT]], [[N]] 402; SINK-GATHER-NEXT: br i1 [[COND]], label [[FOR_BODY]], label [[FOR_END]], !llvm.loop [[LOOP5:![0-9]+]] 403; SINK-GATHER: for.end: 404; SINK-GATHER-NEXT: [[T7:%.*]] = phi i32 [ [[T6]], [[FOR_INC]] ], [ [[TMP68]], [[MIDDLE_BLOCK]] ] 405; SINK-GATHER-NEXT: ret i32 [[T7]] 406; 407entry: 408 br label %for.body 409 410for.body: 411 %i = phi i64 [ 0, %entry ], [ %i.next, %for.inc ] 412 %r = phi i32 [ 0, %entry ], [ %t6, %for.inc ] 413 %i7 = mul i64 %i, 777 414 br i1 %c, label %if.then, label %for.inc 415 416if.then: 417 %t0 = getelementptr inbounds i32, ptr %a, i64 %i7 418 %t2 = load i32, ptr %t0, align 4 419 %t4 = udiv i32 %t2, %x 420 br label %for.inc 421 422for.inc: 423 %t5 = phi i32 [ %x, %for.body ], [ %t4, %if.then] 424 %t6 = add i32 %r, %t5 425 %i.next = add nuw nsw i64 %i, 1 426 %cond = icmp slt i64 %i.next, %n 427 br i1 %cond, label %for.body, label %for.end 428 429for.end: 430 %t7 = phi i32 [ %t6, %for.inc ] 431 ret i32 %t7 432} 433