| ; NOTE: Assertions have been autogenerated by utils/update_test_checks.py UTC_ARGS: --filter-out-after "^for.body:" --filter-out-after "^loop:" |
| ; REQUIRES: asserts |
| ; RUN: opt < %s -passes=loop-vectorize -force-vector-interleave=2 -epilogue-vectorization-minimum-VF=0 -prefer-predicate-over-epilogue=scalar-epilogue \ |
| ; RUN: -debug-only=loop-vectorize -force-target-instruction-cost=1 -S 2>%t | FileCheck %s --check-prefix=CHECK |
| ; RUN: cat %t | FileCheck %s --check-prefix=DEBUG |
| ; RUN: opt < %s -passes=loop-vectorize -force-vector-interleave=2 -epilogue-vectorization-force-VF=8 \ |
| ; RUN: -debug-only=loop-vectorize -S 2>%t | FileCheck %s --check-prefix=CHECK-VF8 |
| ; RUN: cat %t | FileCheck %s --check-prefix=DEBUG-FORCED |
| |
| target triple = "aarch64-linux-gnu" |
| |
| ; DEBUG: LV: Checking a loop in 'main_vf_vscale_x_16' |
| ; DEBUG: Create Skeleton for epilogue vectorized loop (first pass) |
| ; DEBUG: Main Loop VF:vscale x 16, Main Loop UF:2, Epilogue Loop VF:vscale x 8, Epilogue Loop UF:1 |
| |
| ; DEBUG-FORCED: LV: Checking a loop in 'main_vf_vscale_x_16' |
| ; DEBUG-FORCED: LEV: Epilogue vectorization factor is forced. |
| ; DEBUG-FORCED: Create Skeleton for epilogue vectorized loop (first pass) |
| ; DEBUG-FORCED: Main Loop VF:vscale x 16, Main Loop UF:2, Epilogue Loop VF:8, Epilogue Loop UF:1 |
| |
| define void @main_vf_vscale_x_16(ptr %A) #0 { |
| ; CHECK-LABEL: @main_vf_vscale_x_16( |
| ; CHECK-NEXT: iter.check: |
| ; CHECK-NEXT: [[TMP0:%.*]] = call i64 @llvm.vscale.i64() |
| ; CHECK-NEXT: [[TMP1:%.*]] = mul i64 [[TMP0]], 8 |
| ; CHECK-NEXT: [[MIN_ITERS_CHECK:%.*]] = icmp ult i64 1024, [[TMP1]] |
| ; CHECK-NEXT: br i1 [[MIN_ITERS_CHECK]], label [[VEC_EPILOG_SCALAR_PH:%.*]], label [[VECTOR_MAIN_LOOP_ITER_CHECK:%.*]] |
| ; CHECK: vector.main.loop.iter.check: |
| ; CHECK-NEXT: [[TMP2:%.*]] = call i64 @llvm.vscale.i64() |
| ; CHECK-NEXT: [[TMP3:%.*]] = mul i64 [[TMP2]], 32 |
| ; CHECK-NEXT: [[MIN_ITERS_CHECK1:%.*]] = icmp ult i64 1024, [[TMP3]] |
| ; CHECK-NEXT: br i1 [[MIN_ITERS_CHECK1]], label [[VEC_EPILOG_PH:%.*]], label [[VECTOR_PH:%.*]] |
| ; CHECK: vector.ph: |
| ; CHECK-NEXT: [[TMP4:%.*]] = call i64 @llvm.vscale.i64() |
| ; CHECK-NEXT: [[TMP5:%.*]] = mul i64 [[TMP4]], 32 |
| ; CHECK-NEXT: [[N_MOD_VF:%.*]] = urem i64 1024, [[TMP5]] |
| ; CHECK-NEXT: [[N_VEC:%.*]] = sub i64 1024, [[N_MOD_VF]] |
| ; CHECK-NEXT: [[TMP6:%.*]] = call i64 @llvm.vscale.i64() |
| ; CHECK-NEXT: [[TMP7:%.*]] = mul i64 [[TMP6]], 32 |
| ; CHECK-NEXT: br label [[VECTOR_BODY:%.*]] |
| ; CHECK: vector.body: |
| ; CHECK-NEXT: [[INDEX:%.*]] = phi i64 [ 0, [[VECTOR_PH]] ], [ [[INDEX_NEXT:%.*]], [[VECTOR_BODY]] ] |
| ; CHECK-NEXT: [[TMP14:%.*]] = getelementptr inbounds i8, ptr [[A:%.*]], i64 [[INDEX]] |
| ; CHECK-NEXT: [[TMP16:%.*]] = getelementptr inbounds i8, ptr [[TMP14]], i32 0 |
| ; CHECK-NEXT: [[TMP17:%.*]] = call i64 @llvm.vscale.i64() |
| ; CHECK-NEXT: [[TMP18:%.*]] = mul i64 [[TMP17]], 16 |
| ; CHECK-NEXT: [[TMP19:%.*]] = getelementptr inbounds i8, ptr [[TMP14]], i64 [[TMP18]] |
| ; CHECK-NEXT: store <vscale x 16 x i8> splat (i8 1), ptr [[TMP16]], align 1 |
| ; CHECK-NEXT: store <vscale x 16 x i8> splat (i8 1), ptr [[TMP19]], align 1 |
| ; CHECK-NEXT: [[INDEX_NEXT]] = add nuw i64 [[INDEX]], [[TMP7]] |
| ; CHECK-NEXT: [[TMP20:%.*]] = icmp eq i64 [[INDEX_NEXT]], [[N_VEC]] |
| ; CHECK-NEXT: br i1 [[TMP20]], label [[MIDDLE_BLOCK:%.*]], label [[VECTOR_BODY]], !llvm.loop [[LOOP0:![0-9]+]] |
| ; CHECK: middle.block: |
| ; CHECK-NEXT: [[CMP_N:%.*]] = icmp eq i64 1024, [[N_VEC]] |
| ; CHECK-NEXT: br i1 [[CMP_N]], label [[EXIT:%.*]], label [[VEC_EPILOG_ITER_CHECK:%.*]] |
| ; CHECK: vec.epilog.iter.check: |
| ; CHECK-NEXT: [[N_VEC_REMAINING:%.*]] = sub i64 1024, [[N_VEC]] |
| ; CHECK-NEXT: [[TMP21:%.*]] = call i64 @llvm.vscale.i64() |
| ; CHECK-NEXT: [[TMP22:%.*]] = mul i64 [[TMP21]], 8 |
| ; CHECK-NEXT: [[MIN_EPILOG_ITERS_CHECK:%.*]] = icmp ult i64 [[N_VEC_REMAINING]], [[TMP22]] |
| ; CHECK-NEXT: br i1 [[MIN_EPILOG_ITERS_CHECK]], label [[VEC_EPILOG_SCALAR_PH]], label [[VEC_EPILOG_PH]] |
| ; CHECK: vec.epilog.ph: |
| ; CHECK-NEXT: [[VEC_EPILOG_RESUME_VAL:%.*]] = phi i64 [ [[N_VEC]], [[VEC_EPILOG_ITER_CHECK]] ], [ 0, [[VECTOR_MAIN_LOOP_ITER_CHECK]] ] |
| ; CHECK-NEXT: [[TMP23:%.*]] = call i64 @llvm.vscale.i64() |
| ; CHECK-NEXT: [[TMP24:%.*]] = mul i64 [[TMP23]], 8 |
| ; CHECK-NEXT: [[N_MOD_VF2:%.*]] = urem i64 1024, [[TMP24]] |
| ; CHECK-NEXT: [[N_VEC3:%.*]] = sub i64 1024, [[N_MOD_VF2]] |
| ; CHECK-NEXT: [[TMP25:%.*]] = call i64 @llvm.vscale.i64() |
| ; CHECK-NEXT: [[TMP26:%.*]] = mul i64 [[TMP25]], 8 |
| ; CHECK-NEXT: br label [[VEC_EPILOG_VECTOR_BODY:%.*]] |
| ; CHECK: vec.epilog.vector.body: |
| ; CHECK-NEXT: [[INDEX5:%.*]] = phi i64 [ [[VEC_EPILOG_RESUME_VAL]], [[VEC_EPILOG_PH]] ], [ [[INDEX_NEXT6:%.*]], [[VEC_EPILOG_VECTOR_BODY]] ] |
| ; CHECK-NEXT: [[TMP28:%.*]] = getelementptr inbounds i8, ptr [[A]], i64 [[INDEX5]] |
| ; CHECK-NEXT: [[TMP29:%.*]] = getelementptr inbounds i8, ptr [[TMP28]], i32 0 |
| ; CHECK-NEXT: store <vscale x 8 x i8> splat (i8 1), ptr [[TMP29]], align 1 |
| ; CHECK-NEXT: [[INDEX_NEXT6]] = add nuw i64 [[INDEX5]], [[TMP26]] |
| ; CHECK-NEXT: [[TMP30:%.*]] = icmp eq i64 [[INDEX_NEXT6]], [[N_VEC3]] |
| ; CHECK-NEXT: br i1 [[TMP30]], label [[VEC_EPILOG_MIDDLE_BLOCK:%.*]], label [[VEC_EPILOG_VECTOR_BODY]], !llvm.loop [[LOOP3:![0-9]+]] |
| ; CHECK: vec.epilog.middle.block: |
| ; CHECK-NEXT: [[CMP_N4:%.*]] = icmp eq i64 1024, [[N_VEC3]] |
| ; CHECK-NEXT: br i1 [[CMP_N4]], label [[EXIT]], label [[VEC_EPILOG_SCALAR_PH]] |
| ; CHECK: vec.epilog.scalar.ph: |
| ; CHECK-NEXT: [[BC_RESUME_VAL:%.*]] = phi i64 [ [[N_VEC3]], [[VEC_EPILOG_MIDDLE_BLOCK]] ], [ [[N_VEC]], [[VEC_EPILOG_ITER_CHECK]] ], [ 0, [[ITER_CHECK:%.*]] ] |
| ; CHECK-NEXT: br label [[FOR_BODY:%.*]] |
| ; CHECK: for.body: |
| ; |
| ; CHECK-VF8-LABEL: @main_vf_vscale_x_16( |
| ; CHECK-VF8-NEXT: iter.check: |
| ; CHECK-VF8-NEXT: br i1 false, label [[VEC_EPILOG_SCALAR_PH:%.*]], label [[VECTOR_MAIN_LOOP_ITER_CHECK:%.*]] |
| ; CHECK-VF8: vector.main.loop.iter.check: |
| ; CHECK-VF8-NEXT: [[TMP0:%.*]] = call i64 @llvm.vscale.i64() |
| ; CHECK-VF8-NEXT: [[TMP1:%.*]] = mul i64 [[TMP0]], 32 |
| ; CHECK-VF8-NEXT: [[MIN_ITERS_CHECK:%.*]] = icmp ult i64 1024, [[TMP1]] |
| ; CHECK-VF8-NEXT: br i1 [[MIN_ITERS_CHECK]], label [[VEC_EPILOG_PH:%.*]], label [[VECTOR_PH:%.*]] |
| ; CHECK-VF8: vector.ph: |
| ; CHECK-VF8-NEXT: [[TMP2:%.*]] = call i64 @llvm.vscale.i64() |
| ; CHECK-VF8-NEXT: [[TMP3:%.*]] = mul i64 [[TMP2]], 32 |
| ; CHECK-VF8-NEXT: [[N_MOD_VF:%.*]] = urem i64 1024, [[TMP3]] |
| ; CHECK-VF8-NEXT: [[N_VEC:%.*]] = sub i64 1024, [[N_MOD_VF]] |
| ; CHECK-VF8-NEXT: [[TMP4:%.*]] = call i64 @llvm.vscale.i64() |
| ; CHECK-VF8-NEXT: [[TMP5:%.*]] = mul i64 [[TMP4]], 32 |
| ; CHECK-VF8-NEXT: br label [[VECTOR_BODY:%.*]] |
| ; CHECK-VF8: vector.body: |
| ; CHECK-VF8-NEXT: [[INDEX:%.*]] = phi i64 [ 0, [[VECTOR_PH]] ], [ [[INDEX_NEXT:%.*]], [[VECTOR_BODY]] ] |
| ; CHECK-VF8-NEXT: [[TMP12:%.*]] = getelementptr inbounds i8, ptr [[A:%.*]], i64 [[INDEX]] |
| ; CHECK-VF8-NEXT: [[TMP14:%.*]] = getelementptr inbounds i8, ptr [[TMP12]], i32 0 |
| ; CHECK-VF8-NEXT: [[TMP15:%.*]] = call i64 @llvm.vscale.i64() |
| ; CHECK-VF8-NEXT: [[TMP16:%.*]] = mul i64 [[TMP15]], 16 |
| ; CHECK-VF8-NEXT: [[TMP17:%.*]] = getelementptr inbounds i8, ptr [[TMP12]], i64 [[TMP16]] |
| ; CHECK-VF8-NEXT: store <vscale x 16 x i8> splat (i8 1), ptr [[TMP14]], align 1 |
| ; CHECK-VF8-NEXT: store <vscale x 16 x i8> splat (i8 1), ptr [[TMP17]], align 1 |
| ; CHECK-VF8-NEXT: [[INDEX_NEXT]] = add nuw i64 [[INDEX]], [[TMP5]] |
| ; CHECK-VF8-NEXT: [[TMP18:%.*]] = icmp eq i64 [[INDEX_NEXT]], [[N_VEC]] |
| ; CHECK-VF8-NEXT: br i1 [[TMP18]], label [[MIDDLE_BLOCK:%.*]], label [[VECTOR_BODY]], !llvm.loop [[LOOP0:![0-9]+]] |
| ; CHECK-VF8: middle.block: |
| ; CHECK-VF8-NEXT: [[CMP_N:%.*]] = icmp eq i64 1024, [[N_VEC]] |
| ; CHECK-VF8-NEXT: br i1 [[CMP_N]], label [[EXIT:%.*]], label [[VEC_EPILOG_ITER_CHECK:%.*]] |
| ; CHECK-VF8: vec.epilog.iter.check: |
| ; CHECK-VF8-NEXT: [[N_VEC_REMAINING:%.*]] = sub i64 1024, [[N_VEC]] |
| ; CHECK-VF8-NEXT: [[MIN_EPILOG_ITERS_CHECK:%.*]] = icmp ult i64 [[N_VEC_REMAINING]], 8 |
| ; CHECK-VF8-NEXT: br i1 [[MIN_EPILOG_ITERS_CHECK]], label [[VEC_EPILOG_SCALAR_PH]], label [[VEC_EPILOG_PH]] |
| ; CHECK-VF8: vec.epilog.ph: |
| ; CHECK-VF8-NEXT: [[VEC_EPILOG_RESUME_VAL:%.*]] = phi i64 [ [[N_VEC]], [[VEC_EPILOG_ITER_CHECK]] ], [ 0, [[VECTOR_MAIN_LOOP_ITER_CHECK]] ] |
| ; CHECK-VF8-NEXT: br label [[VEC_EPILOG_VECTOR_BODY:%.*]] |
| ; CHECK-VF8: vec.epilog.vector.body: |
| ; CHECK-VF8-NEXT: [[INDEX1:%.*]] = phi i64 [ [[VEC_EPILOG_RESUME_VAL]], [[VEC_EPILOG_PH]] ], [ [[INDEX_NEXT2:%.*]], [[VEC_EPILOG_VECTOR_BODY]] ] |
| ; CHECK-VF8-NEXT: [[TMP20:%.*]] = getelementptr inbounds i8, ptr [[A]], i64 [[INDEX1]] |
| ; CHECK-VF8-NEXT: [[TMP21:%.*]] = getelementptr inbounds i8, ptr [[TMP20]], i32 0 |
| ; CHECK-VF8-NEXT: store <8 x i8> splat (i8 1), ptr [[TMP21]], align 1 |
| ; CHECK-VF8-NEXT: [[INDEX_NEXT2]] = add nuw i64 [[INDEX1]], 8 |
| ; CHECK-VF8-NEXT: [[TMP22:%.*]] = icmp eq i64 [[INDEX_NEXT2]], 1024 |
| ; CHECK-VF8-NEXT: br i1 [[TMP22]], label [[VEC_EPILOG_MIDDLE_BLOCK:%.*]], label [[VEC_EPILOG_VECTOR_BODY]], !llvm.loop [[LOOP3:![0-9]+]] |
| ; CHECK-VF8: vec.epilog.middle.block: |
| ; CHECK-VF8-NEXT: br i1 true, label [[EXIT]], label [[VEC_EPILOG_SCALAR_PH]] |
| ; CHECK-VF8: vec.epilog.scalar.ph: |
| ; CHECK-VF8-NEXT: [[BC_RESUME_VAL:%.*]] = phi i64 [ 1024, [[VEC_EPILOG_MIDDLE_BLOCK]] ], [ [[N_VEC]], [[VEC_EPILOG_ITER_CHECK]] ], [ 0, [[ITER_CHECK:%.*]] ] |
| ; CHECK-VF8-NEXT: br label [[FOR_BODY:%.*]] |
| ; CHECK-VF8: for.body: |
| ; |
| entry: |
| br label %for.body |
| |
| for.body: |
| %iv = phi i64 [ 0, %entry ], [ %iv.next, %for.body ] |
| %arrayidx = getelementptr inbounds i8, ptr %A, i64 %iv |
| store i8 1, ptr %arrayidx, align 1 |
| %iv.next = add nuw nsw i64 %iv, 1 |
| %exitcond = icmp ne i64 %iv.next, 1024 |
| br i1 %exitcond, label %for.body, label %exit |
| |
| exit: |
| ret void |
| } |
| |
| |
| ; DEBUG: LV: Checking a loop in 'main_vf_vscale_x_2' |
| ; DEBUG: Create Skeleton for epilogue vectorized loop (first pass) |
| ; DEBUG: Main Loop VF:vscale x 2, Main Loop UF:2, Epilogue Loop VF:8, Epilogue Loop UF:1 |
| |
| ; DEBUG-FORCED: LV: Checking a loop in 'main_vf_vscale_x_2' |
| ; DEBUG-FORCED: LEV: Epilogue vectorization factor is forced. |
| ; DEBUG-FORCED: Create Skeleton for epilogue vectorized loop (first pass) |
| ; DEBUG-FORCED: Main Loop VF:vscale x 2, Main Loop UF:2, Epilogue Loop VF:8, Epilogue Loop UF:1 |
| |
| ; When the vector.body uses VF=vscale x 1 (or VF=vscale x 2 because |
| ; that's the minimum supported VF by SVE), we could still use a wide |
| ; fixed-width VF=8 for the epilogue if the vectors are known to be |
| ; sufficiently wide. This information can be deduced from vscale_range or |
| ; VScaleForTuning (set by mcpu/mtune). |
| define void @main_vf_vscale_x_2(ptr %A) #0 vscale_range(8, 8) { |
| ; CHECK-LABEL: @main_vf_vscale_x_2( |
| ; CHECK-NEXT: iter.check: |
| ; CHECK-NEXT: br i1 false, label [[VEC_EPILOG_SCALAR_PH:%.*]], label [[VECTOR_MAIN_LOOP_ITER_CHECK:%.*]] |
| ; CHECK: vector.main.loop.iter.check: |
| ; CHECK-NEXT: [[TMP0:%.*]] = call i64 @llvm.vscale.i64() |
| ; CHECK-NEXT: [[TMP1:%.*]] = mul i64 [[TMP0]], 4 |
| ; CHECK-NEXT: [[MIN_ITERS_CHECK:%.*]] = icmp ult i64 1024, [[TMP1]] |
| ; CHECK-NEXT: br i1 [[MIN_ITERS_CHECK]], label [[VEC_EPILOG_PH:%.*]], label [[VECTOR_PH:%.*]] |
| ; CHECK: vector.ph: |
| ; CHECK-NEXT: [[TMP2:%.*]] = call i64 @llvm.vscale.i64() |
| ; CHECK-NEXT: [[TMP3:%.*]] = mul i64 [[TMP2]], 4 |
| ; CHECK-NEXT: [[N_MOD_VF:%.*]] = urem i64 1024, [[TMP3]] |
| ; CHECK-NEXT: [[N_VEC:%.*]] = sub i64 1024, [[N_MOD_VF]] |
| ; CHECK-NEXT: [[TMP4:%.*]] = call i64 @llvm.vscale.i64() |
| ; CHECK-NEXT: [[TMP5:%.*]] = mul i64 [[TMP4]], 4 |
| ; CHECK-NEXT: br label [[VECTOR_BODY:%.*]] |
| ; CHECK: vector.body: |
| ; CHECK-NEXT: [[INDEX:%.*]] = phi i64 [ 0, [[VECTOR_PH]] ], [ [[INDEX_NEXT:%.*]], [[VECTOR_BODY]] ] |
| ; CHECK-NEXT: [[TMP12:%.*]] = getelementptr inbounds i64, ptr [[A:%.*]], i64 [[INDEX]] |
| ; CHECK-NEXT: [[TMP14:%.*]] = getelementptr inbounds i64, ptr [[TMP12]], i32 0 |
| ; CHECK-NEXT: [[TMP15:%.*]] = call i64 @llvm.vscale.i64() |
| ; CHECK-NEXT: [[TMP16:%.*]] = mul i64 [[TMP15]], 2 |
| ; CHECK-NEXT: [[TMP17:%.*]] = getelementptr inbounds i64, ptr [[TMP12]], i64 [[TMP16]] |
| ; CHECK-NEXT: store <vscale x 2 x i64> splat (i64 1), ptr [[TMP14]], align 1 |
| ; CHECK-NEXT: store <vscale x 2 x i64> splat (i64 1), ptr [[TMP17]], align 1 |
| ; CHECK-NEXT: [[INDEX_NEXT]] = add nuw i64 [[INDEX]], [[TMP5]] |
| ; CHECK-NEXT: [[TMP18:%.*]] = icmp eq i64 [[INDEX_NEXT]], [[N_VEC]] |
| ; CHECK-NEXT: br i1 [[TMP18]], label [[MIDDLE_BLOCK:%.*]], label [[VECTOR_BODY]], !llvm.loop [[LOOP5:![0-9]+]] |
| ; CHECK: middle.block: |
| ; CHECK-NEXT: [[CMP_N:%.*]] = icmp eq i64 1024, [[N_VEC]] |
| ; CHECK-NEXT: br i1 [[CMP_N]], label [[EXIT:%.*]], label [[VEC_EPILOG_ITER_CHECK:%.*]] |
| ; CHECK: vec.epilog.iter.check: |
| ; CHECK-NEXT: [[N_VEC_REMAINING:%.*]] = sub i64 1024, [[N_VEC]] |
| ; CHECK-NEXT: [[MIN_EPILOG_ITERS_CHECK:%.*]] = icmp ult i64 [[N_VEC_REMAINING]], 8 |
| ; CHECK-NEXT: br i1 [[MIN_EPILOG_ITERS_CHECK]], label [[VEC_EPILOG_SCALAR_PH]], label [[VEC_EPILOG_PH]] |
| ; CHECK: vec.epilog.ph: |
| ; CHECK-NEXT: [[VEC_EPILOG_RESUME_VAL:%.*]] = phi i64 [ [[N_VEC]], [[VEC_EPILOG_ITER_CHECK]] ], [ 0, [[VECTOR_MAIN_LOOP_ITER_CHECK]] ] |
| ; CHECK-NEXT: br label [[VEC_EPILOG_VECTOR_BODY:%.*]] |
| ; CHECK: vec.epilog.vector.body: |
| ; CHECK-NEXT: [[INDEX1:%.*]] = phi i64 [ [[VEC_EPILOG_RESUME_VAL]], [[VEC_EPILOG_PH]] ], [ [[INDEX_NEXT2:%.*]], [[VEC_EPILOG_VECTOR_BODY]] ] |
| ; CHECK-NEXT: [[TMP20:%.*]] = getelementptr inbounds i64, ptr [[A]], i64 [[INDEX1]] |
| ; CHECK-NEXT: [[TMP21:%.*]] = getelementptr inbounds i64, ptr [[TMP20]], i32 0 |
| ; CHECK-NEXT: store <8 x i64> splat (i64 1), ptr [[TMP21]], align 1 |
| ; CHECK-NEXT: [[INDEX_NEXT2]] = add nuw i64 [[INDEX1]], 8 |
| ; CHECK-NEXT: [[TMP22:%.*]] = icmp eq i64 [[INDEX_NEXT2]], 1024 |
| ; CHECK-NEXT: br i1 [[TMP22]], label [[VEC_EPILOG_MIDDLE_BLOCK:%.*]], label [[VEC_EPILOG_VECTOR_BODY]], !llvm.loop [[LOOP6:![0-9]+]] |
| ; CHECK: vec.epilog.middle.block: |
| ; CHECK-NEXT: br i1 true, label [[EXIT]], label [[VEC_EPILOG_SCALAR_PH]] |
| ; CHECK: vec.epilog.scalar.ph: |
| ; CHECK-NEXT: [[BC_RESUME_VAL:%.*]] = phi i64 [ 1024, [[VEC_EPILOG_MIDDLE_BLOCK]] ], [ [[N_VEC]], [[VEC_EPILOG_ITER_CHECK]] ], [ 0, [[ITER_CHECK:%.*]] ] |
| ; CHECK-NEXT: br label [[FOR_BODY:%.*]] |
| ; CHECK: for.body: |
| ; |
| ; CHECK-VF8-LABEL: @main_vf_vscale_x_2( |
| ; CHECK-VF8-NEXT: iter.check: |
| ; CHECK-VF8-NEXT: br i1 false, label [[VEC_EPILOG_SCALAR_PH:%.*]], label [[VECTOR_MAIN_LOOP_ITER_CHECK:%.*]] |
| ; CHECK-VF8: vector.main.loop.iter.check: |
| ; CHECK-VF8-NEXT: [[TMP0:%.*]] = call i64 @llvm.vscale.i64() |
| ; CHECK-VF8-NEXT: [[TMP1:%.*]] = mul i64 [[TMP0]], 4 |
| ; CHECK-VF8-NEXT: [[MIN_ITERS_CHECK:%.*]] = icmp ult i64 1024, [[TMP1]] |
| ; CHECK-VF8-NEXT: br i1 [[MIN_ITERS_CHECK]], label [[VEC_EPILOG_PH:%.*]], label [[VECTOR_PH:%.*]] |
| ; CHECK-VF8: vector.ph: |
| ; CHECK-VF8-NEXT: [[TMP2:%.*]] = call i64 @llvm.vscale.i64() |
| ; CHECK-VF8-NEXT: [[TMP3:%.*]] = mul i64 [[TMP2]], 4 |
| ; CHECK-VF8-NEXT: [[N_MOD_VF:%.*]] = urem i64 1024, [[TMP3]] |
| ; CHECK-VF8-NEXT: [[N_VEC:%.*]] = sub i64 1024, [[N_MOD_VF]] |
| ; CHECK-VF8-NEXT: [[TMP4:%.*]] = call i64 @llvm.vscale.i64() |
| ; CHECK-VF8-NEXT: [[TMP5:%.*]] = mul i64 [[TMP4]], 4 |
| ; CHECK-VF8-NEXT: br label [[VECTOR_BODY:%.*]] |
| ; CHECK-VF8: vector.body: |
| ; CHECK-VF8-NEXT: [[INDEX:%.*]] = phi i64 [ 0, [[VECTOR_PH]] ], [ [[INDEX_NEXT:%.*]], [[VECTOR_BODY]] ] |
| ; CHECK-VF8-NEXT: [[TMP12:%.*]] = getelementptr inbounds i64, ptr [[A:%.*]], i64 [[INDEX]] |
| ; CHECK-VF8-NEXT: [[TMP14:%.*]] = getelementptr inbounds i64, ptr [[TMP12]], i32 0 |
| ; CHECK-VF8-NEXT: [[TMP15:%.*]] = call i64 @llvm.vscale.i64() |
| ; CHECK-VF8-NEXT: [[TMP16:%.*]] = mul i64 [[TMP15]], 2 |
| ; CHECK-VF8-NEXT: [[TMP17:%.*]] = getelementptr inbounds i64, ptr [[TMP12]], i64 [[TMP16]] |
| ; CHECK-VF8-NEXT: store <vscale x 2 x i64> splat (i64 1), ptr [[TMP14]], align 1 |
| ; CHECK-VF8-NEXT: store <vscale x 2 x i64> splat (i64 1), ptr [[TMP17]], align 1 |
| ; CHECK-VF8-NEXT: [[INDEX_NEXT]] = add nuw i64 [[INDEX]], [[TMP5]] |
| ; CHECK-VF8-NEXT: [[TMP18:%.*]] = icmp eq i64 [[INDEX_NEXT]], [[N_VEC]] |
| ; CHECK-VF8-NEXT: br i1 [[TMP18]], label [[MIDDLE_BLOCK:%.*]], label [[VECTOR_BODY]], !llvm.loop [[LOOP5:![0-9]+]] |
| ; CHECK-VF8: middle.block: |
| ; CHECK-VF8-NEXT: [[CMP_N:%.*]] = icmp eq i64 1024, [[N_VEC]] |
| ; CHECK-VF8-NEXT: br i1 [[CMP_N]], label [[EXIT:%.*]], label [[VEC_EPILOG_ITER_CHECK:%.*]] |
| ; CHECK-VF8: vec.epilog.iter.check: |
| ; CHECK-VF8-NEXT: [[N_VEC_REMAINING:%.*]] = sub i64 1024, [[N_VEC]] |
| ; CHECK-VF8-NEXT: [[MIN_EPILOG_ITERS_CHECK:%.*]] = icmp ult i64 [[N_VEC_REMAINING]], 8 |
| ; CHECK-VF8-NEXT: br i1 [[MIN_EPILOG_ITERS_CHECK]], label [[VEC_EPILOG_SCALAR_PH]], label [[VEC_EPILOG_PH]] |
| ; CHECK-VF8: vec.epilog.ph: |
| ; CHECK-VF8-NEXT: [[VEC_EPILOG_RESUME_VAL:%.*]] = phi i64 [ [[N_VEC]], [[VEC_EPILOG_ITER_CHECK]] ], [ 0, [[VECTOR_MAIN_LOOP_ITER_CHECK]] ] |
| ; CHECK-VF8-NEXT: br label [[VEC_EPILOG_VECTOR_BODY:%.*]] |
| ; CHECK-VF8: vec.epilog.vector.body: |
| ; CHECK-VF8-NEXT: [[INDEX1:%.*]] = phi i64 [ [[VEC_EPILOG_RESUME_VAL]], [[VEC_EPILOG_PH]] ], [ [[INDEX_NEXT2:%.*]], [[VEC_EPILOG_VECTOR_BODY]] ] |
| ; CHECK-VF8-NEXT: [[TMP20:%.*]] = getelementptr inbounds i64, ptr [[A]], i64 [[INDEX1]] |
| ; CHECK-VF8-NEXT: [[TMP21:%.*]] = getelementptr inbounds i64, ptr [[TMP20]], i32 0 |
| ; CHECK-VF8-NEXT: store <8 x i64> splat (i64 1), ptr [[TMP21]], align 1 |
| ; CHECK-VF8-NEXT: [[INDEX_NEXT2]] = add nuw i64 [[INDEX1]], 8 |
| ; CHECK-VF8-NEXT: [[TMP22:%.*]] = icmp eq i64 [[INDEX_NEXT2]], 1024 |
| ; CHECK-VF8-NEXT: br i1 [[TMP22]], label [[VEC_EPILOG_MIDDLE_BLOCK:%.*]], label [[VEC_EPILOG_VECTOR_BODY]], !llvm.loop [[LOOP6:![0-9]+]] |
| ; CHECK-VF8: vec.epilog.middle.block: |
| ; CHECK-VF8-NEXT: br i1 true, label [[EXIT]], label [[VEC_EPILOG_SCALAR_PH]] |
| ; CHECK-VF8: vec.epilog.scalar.ph: |
| ; CHECK-VF8-NEXT: [[BC_RESUME_VAL:%.*]] = phi i64 [ 1024, [[VEC_EPILOG_MIDDLE_BLOCK]] ], [ [[N_VEC]], [[VEC_EPILOG_ITER_CHECK]] ], [ 0, [[ITER_CHECK:%.*]] ] |
| ; CHECK-VF8-NEXT: br label [[FOR_BODY:%.*]] |
| ; CHECK-VF8: for.body: |
| ; |
| entry: |
| br label %for.body |
| |
| for.body: |
| %iv = phi i64 [ 0, %entry ], [ %iv.next, %for.body ] |
| %arrayidx = getelementptr inbounds i64, ptr %A, i64 %iv |
| store i64 1, ptr %arrayidx, align 1 |
| %iv.next = add nuw nsw i64 %iv, 1 |
| %exitcond = icmp ne i64 %iv.next, 1024 |
| br i1 %exitcond, label %for.body, label %exit |
| |
| exit: |
| ret void |
| } |
| |
| ; FIXME: The epilogue loop is currently miscompiled: the pointer induction |
| ; uses an incorrect resume value. |
| define void @test_pr57912_pointer_induction(ptr %start) #0 { |
| ; CHECK-LABEL: @test_pr57912_pointer_induction( |
| ; CHECK-NEXT: iter.check: |
| ; CHECK-NEXT: [[TMP0:%.*]] = call i64 @llvm.vscale.i64() |
| ; CHECK-NEXT: [[TMP1:%.*]] = mul i64 [[TMP0]], 8 |
| ; CHECK-NEXT: [[MIN_ITERS_CHECK:%.*]] = icmp ult i64 10000, [[TMP1]] |
| ; CHECK-NEXT: br i1 [[MIN_ITERS_CHECK]], label [[VEC_EPILOG_SCALAR_PH:%.*]], label [[VECTOR_MAIN_LOOP_ITER_CHECK:%.*]] |
| ; CHECK: vector.main.loop.iter.check: |
| ; CHECK-NEXT: [[TMP2:%.*]] = call i64 @llvm.vscale.i64() |
| ; CHECK-NEXT: [[TMP3:%.*]] = mul i64 [[TMP2]], 32 |
| ; CHECK-NEXT: [[MIN_ITERS_CHECK1:%.*]] = icmp ult i64 10000, [[TMP3]] |
| ; CHECK-NEXT: br i1 [[MIN_ITERS_CHECK1]], label [[VEC_EPILOG_PH:%.*]], label [[VECTOR_PH:%.*]] |
| ; CHECK: vector.ph: |
| ; CHECK-NEXT: [[TMP4:%.*]] = call i64 @llvm.vscale.i64() |
| ; CHECK-NEXT: [[TMP5:%.*]] = mul i64 [[TMP4]], 32 |
| ; CHECK-NEXT: [[N_MOD_VF:%.*]] = urem i64 10000, [[TMP5]] |
| ; CHECK-NEXT: [[N_VEC:%.*]] = sub i64 10000, [[N_MOD_VF]] |
| ; CHECK-NEXT: [[TMP6:%.*]] = call i64 @llvm.vscale.i64() |
| ; CHECK-NEXT: [[TMP7:%.*]] = mul i64 [[TMP6]], 32 |
| ; CHECK-NEXT: br label [[VECTOR_BODY:%.*]] |
| ; CHECK: vector.body: |
| ; CHECK-NEXT: [[INDEX:%.*]] = phi i64 [ 0, [[VECTOR_PH]] ], [ [[INDEX_NEXT:%.*]], [[VECTOR_BODY]] ] |
| ; CHECK-NEXT: [[TMP14:%.*]] = getelementptr i8, ptr [[START:%.*]], i64 [[INDEX]] |
| ; CHECK-NEXT: [[TMP16:%.*]] = getelementptr i8, ptr [[TMP14]], i32 0 |
| ; CHECK-NEXT: [[TMP17:%.*]] = call i64 @llvm.vscale.i64() |
| ; CHECK-NEXT: [[TMP18:%.*]] = mul i64 [[TMP17]], 16 |
| ; CHECK-NEXT: [[TMP19:%.*]] = getelementptr i8, ptr [[TMP14]], i64 [[TMP18]] |
| ; CHECK-NEXT: store <vscale x 16 x i8> zeroinitializer, ptr [[TMP16]], align 1 |
| ; CHECK-NEXT: store <vscale x 16 x i8> zeroinitializer, ptr [[TMP19]], align 1 |
| ; CHECK-NEXT: [[INDEX_NEXT]] = add nuw i64 [[INDEX]], [[TMP7]] |
| ; CHECK-NEXT: [[TMP20:%.*]] = icmp eq i64 [[INDEX_NEXT]], [[N_VEC]] |
| ; CHECK-NEXT: br i1 [[TMP20]], label [[MIDDLE_BLOCK:%.*]], label [[VECTOR_BODY]], !llvm.loop [[LOOP8:![0-9]+]] |
| ; CHECK: middle.block: |
| ; CHECK-NEXT: [[CMP_N:%.*]] = icmp eq i64 10000, [[N_VEC]] |
| ; CHECK-NEXT: br i1 [[CMP_N]], label [[EXIT:%.*]], label [[VEC_EPILOG_ITER_CHECK:%.*]] |
| ; CHECK: vec.epilog.iter.check: |
| ; CHECK-NEXT: [[IND_END4:%.*]] = getelementptr i8, ptr [[START]], i64 [[N_VEC]] |
| ; CHECK-NEXT: [[N_VEC_REMAINING:%.*]] = sub i64 10000, [[N_VEC]] |
| ; CHECK-NEXT: [[TMP21:%.*]] = call i64 @llvm.vscale.i64() |
| ; CHECK-NEXT: [[TMP22:%.*]] = mul i64 [[TMP21]], 8 |
| ; CHECK-NEXT: [[MIN_EPILOG_ITERS_CHECK:%.*]] = icmp ult i64 [[N_VEC_REMAINING]], [[TMP22]] |
| ; CHECK-NEXT: br i1 [[MIN_EPILOG_ITERS_CHECK]], label [[VEC_EPILOG_SCALAR_PH]], label [[VEC_EPILOG_PH]] |
| ; CHECK: vec.epilog.ph: |
| ; CHECK-NEXT: [[VEC_EPILOG_RESUME_VAL:%.*]] = phi i64 [ [[N_VEC]], [[VEC_EPILOG_ITER_CHECK]] ], [ 0, [[VECTOR_MAIN_LOOP_ITER_CHECK]] ] |
| ; CHECK-NEXT: [[TMP23:%.*]] = call i64 @llvm.vscale.i64() |
| ; CHECK-NEXT: [[TMP24:%.*]] = mul i64 [[TMP23]], 8 |
| ; CHECK-NEXT: [[N_MOD_VF2:%.*]] = urem i64 10000, [[TMP24]] |
| ; CHECK-NEXT: [[N_VEC3:%.*]] = sub i64 10000, [[N_MOD_VF2]] |
| ; CHECK-NEXT: [[TMP25:%.*]] = call i64 @llvm.vscale.i64() |
| ; CHECK-NEXT: [[TMP26:%.*]] = mul i64 [[TMP25]], 8 |
| ; CHECK-NEXT: [[IND_END:%.*]] = getelementptr i8, ptr [[START]], i64 [[N_VEC3]] |
| ; CHECK-NEXT: br label [[VEC_EPILOG_VECTOR_BODY:%.*]] |
| ; CHECK: vec.epilog.vector.body: |
| ; CHECK-NEXT: [[INDEX7:%.*]] = phi i64 [ [[VEC_EPILOG_RESUME_VAL]], [[VEC_EPILOG_PH]] ], [ [[INDEX_NEXT8:%.*]], [[VEC_EPILOG_VECTOR_BODY]] ] |
| ; CHECK-NEXT: [[TMP28:%.*]] = getelementptr i8, ptr [[START]], i64 [[INDEX7]] |
| ; CHECK-NEXT: [[TMP29:%.*]] = getelementptr i8, ptr [[TMP28]], i32 0 |
| ; CHECK-NEXT: store <vscale x 8 x i8> zeroinitializer, ptr [[TMP29]], align 1 |
| ; CHECK-NEXT: [[INDEX_NEXT8]] = add nuw i64 [[INDEX7]], [[TMP26]] |
| ; CHECK-NEXT: [[TMP30:%.*]] = icmp eq i64 [[INDEX_NEXT8]], [[N_VEC3]] |
| ; CHECK-NEXT: br i1 [[TMP30]], label [[VEC_EPILOG_MIDDLE_BLOCK:%.*]], label [[VEC_EPILOG_VECTOR_BODY]], !llvm.loop [[LOOP9:![0-9]+]] |
| ; CHECK: vec.epilog.middle.block: |
| ; CHECK-NEXT: [[CMP_N6:%.*]] = icmp eq i64 10000, [[N_VEC3]] |
| ; CHECK-NEXT: br i1 [[CMP_N6]], label [[EXIT]], label [[VEC_EPILOG_SCALAR_PH]] |
| ; CHECK: vec.epilog.scalar.ph: |
| ; CHECK-NEXT: [[BC_RESUME_VAL:%.*]] = phi i64 [ [[N_VEC3]], [[VEC_EPILOG_MIDDLE_BLOCK]] ], [ [[N_VEC]], [[VEC_EPILOG_ITER_CHECK]] ], [ 0, [[ITER_CHECK:%.*]] ] |
| ; CHECK-NEXT: [[BC_RESUME_VAL5:%.*]] = phi ptr [ [[IND_END]], [[VEC_EPILOG_MIDDLE_BLOCK]] ], [ [[IND_END4]], [[VEC_EPILOG_ITER_CHECK]] ], [ [[START]], [[ITER_CHECK]] ] |
| ; CHECK-NEXT: br label [[LOOP:%.*]] |
| ; CHECK: loop: |
| ; |
| ; CHECK-VF8-LABEL: @test_pr57912_pointer_induction( |
| ; CHECK-VF8-NEXT: iter.check: |
| ; CHECK-VF8-NEXT: br i1 false, label [[VEC_EPILOG_SCALAR_PH:%.*]], label [[VECTOR_MAIN_LOOP_ITER_CHECK:%.*]] |
| ; CHECK-VF8: vector.main.loop.iter.check: |
| ; CHECK-VF8-NEXT: [[TMP0:%.*]] = call i64 @llvm.vscale.i64() |
| ; CHECK-VF8-NEXT: [[TMP1:%.*]] = mul i64 [[TMP0]], 32 |
| ; CHECK-VF8-NEXT: [[MIN_ITERS_CHECK:%.*]] = icmp ult i64 10000, [[TMP1]] |
| ; CHECK-VF8-NEXT: br i1 [[MIN_ITERS_CHECK]], label [[VEC_EPILOG_PH:%.*]], label [[VECTOR_PH:%.*]] |
| ; CHECK-VF8: vector.ph: |
| ; CHECK-VF8-NEXT: [[TMP2:%.*]] = call i64 @llvm.vscale.i64() |
| ; CHECK-VF8-NEXT: [[TMP3:%.*]] = mul i64 [[TMP2]], 32 |
| ; CHECK-VF8-NEXT: [[N_MOD_VF:%.*]] = urem i64 10000, [[TMP3]] |
| ; CHECK-VF8-NEXT: [[N_VEC:%.*]] = sub i64 10000, [[N_MOD_VF]] |
| ; CHECK-VF8-NEXT: [[TMP4:%.*]] = call i64 @llvm.vscale.i64() |
| ; CHECK-VF8-NEXT: [[TMP5:%.*]] = mul i64 [[TMP4]], 32 |
| ; CHECK-VF8-NEXT: br label [[VECTOR_BODY:%.*]] |
| ; CHECK-VF8: vector.body: |
| ; CHECK-VF8-NEXT: [[INDEX:%.*]] = phi i64 [ 0, [[VECTOR_PH]] ], [ [[INDEX_NEXT:%.*]], [[VECTOR_BODY]] ] |
| ; CHECK-VF8-NEXT: [[TMP12:%.*]] = getelementptr i8, ptr [[START:%.*]], i64 [[INDEX]] |
| ; CHECK-VF8-NEXT: [[TMP14:%.*]] = getelementptr i8, ptr [[TMP12]], i32 0 |
| ; CHECK-VF8-NEXT: [[TMP15:%.*]] = call i64 @llvm.vscale.i64() |
| ; CHECK-VF8-NEXT: [[TMP16:%.*]] = mul i64 [[TMP15]], 16 |
| ; CHECK-VF8-NEXT: [[TMP17:%.*]] = getelementptr i8, ptr [[TMP12]], i64 [[TMP16]] |
| ; CHECK-VF8-NEXT: store <vscale x 16 x i8> zeroinitializer, ptr [[TMP14]], align 1 |
| ; CHECK-VF8-NEXT: store <vscale x 16 x i8> zeroinitializer, ptr [[TMP17]], align 1 |
| ; CHECK-VF8-NEXT: [[INDEX_NEXT]] = add nuw i64 [[INDEX]], [[TMP5]] |
| ; CHECK-VF8-NEXT: [[TMP18:%.*]] = icmp eq i64 [[INDEX_NEXT]], [[N_VEC]] |
| ; CHECK-VF8-NEXT: br i1 [[TMP18]], label [[MIDDLE_BLOCK:%.*]], label [[VECTOR_BODY]], !llvm.loop [[LOOP8:![0-9]+]] |
| ; CHECK-VF8: middle.block: |
| ; CHECK-VF8-NEXT: [[CMP_N:%.*]] = icmp eq i64 10000, [[N_VEC]] |
| ; CHECK-VF8-NEXT: br i1 [[CMP_N]], label [[EXIT:%.*]], label [[VEC_EPILOG_ITER_CHECK:%.*]] |
| ; CHECK-VF8: vec.epilog.iter.check: |
| ; CHECK-VF8-NEXT: [[IND_END1:%.*]] = getelementptr i8, ptr [[START]], i64 [[N_VEC]] |
| ; CHECK-VF8-NEXT: [[N_VEC_REMAINING:%.*]] = sub i64 10000, [[N_VEC]] |
| ; CHECK-VF8-NEXT: [[MIN_EPILOG_ITERS_CHECK:%.*]] = icmp ult i64 [[N_VEC_REMAINING]], 8 |
| ; CHECK-VF8-NEXT: br i1 [[MIN_EPILOG_ITERS_CHECK]], label [[VEC_EPILOG_SCALAR_PH]], label [[VEC_EPILOG_PH]] |
| ; CHECK-VF8: vec.epilog.ph: |
| ; CHECK-VF8-NEXT: [[VEC_EPILOG_RESUME_VAL:%.*]] = phi i64 [ [[N_VEC]], [[VEC_EPILOG_ITER_CHECK]] ], [ 0, [[VECTOR_MAIN_LOOP_ITER_CHECK]] ] |
| ; CHECK-VF8-NEXT: [[IND_END:%.*]] = getelementptr i8, ptr [[START]], i64 10000 |
| ; CHECK-VF8-NEXT: br label [[VEC_EPILOG_VECTOR_BODY:%.*]] |
| ; CHECK-VF8: vec.epilog.vector.body: |
| ; CHECK-VF8-NEXT: [[INDEX3:%.*]] = phi i64 [ [[VEC_EPILOG_RESUME_VAL]], [[VEC_EPILOG_PH]] ], [ [[INDEX_NEXT4:%.*]], [[VEC_EPILOG_VECTOR_BODY]] ] |
| ; CHECK-VF8-NEXT: [[TMP20:%.*]] = getelementptr i8, ptr [[START]], i64 [[INDEX3]] |
| ; CHECK-VF8-NEXT: [[TMP21:%.*]] = getelementptr i8, ptr [[TMP20]], i32 0 |
| ; CHECK-VF8-NEXT: store <8 x i8> zeroinitializer, ptr [[TMP21]], align 1 |
| ; CHECK-VF8-NEXT: [[INDEX_NEXT4]] = add nuw i64 [[INDEX3]], 8 |
| ; CHECK-VF8-NEXT: [[TMP22:%.*]] = icmp eq i64 [[INDEX_NEXT4]], 10000 |
| ; CHECK-VF8-NEXT: br i1 [[TMP22]], label [[VEC_EPILOG_MIDDLE_BLOCK:%.*]], label [[VEC_EPILOG_VECTOR_BODY]], !llvm.loop [[LOOP9:![0-9]+]] |
| ; CHECK-VF8: vec.epilog.middle.block: |
| ; CHECK-VF8-NEXT: br i1 true, label [[EXIT]], label [[VEC_EPILOG_SCALAR_PH]] |
| ; CHECK-VF8: vec.epilog.scalar.ph: |
| ; CHECK-VF8-NEXT: [[BC_RESUME_VAL:%.*]] = phi i64 [ 10000, [[VEC_EPILOG_MIDDLE_BLOCK]] ], [ [[N_VEC]], [[VEC_EPILOG_ITER_CHECK]] ], [ 0, [[ITER_CHECK:%.*]] ] |
| ; CHECK-VF8-NEXT: [[BC_RESUME_VAL2:%.*]] = phi ptr [ [[IND_END]], [[VEC_EPILOG_MIDDLE_BLOCK]] ], [ [[IND_END1]], [[VEC_EPILOG_ITER_CHECK]] ], [ [[START]], [[ITER_CHECK]] ] |
| ; CHECK-VF8-NEXT: br label [[LOOP:%.*]] |
| ; CHECK-VF8: loop: |
| ; |
| entry: |
| br label %loop |
| |
| loop: |
| %iv = phi i64 [ 0, %entry ], [ %iv.next, %loop ] |
| %ptr.iv = phi ptr [ %start, %entry ], [ %ptr.iv.next, %loop ] |
| store i8 0, ptr %ptr.iv, align 1 |
| %ptr.iv.next = getelementptr inbounds i8, ptr %ptr.iv, i64 1 |
| %iv.next = add nuw nsw i64 %iv, 1 |
| %cmp = icmp eq i64 %iv.next, 10000 |
| br i1 %cmp, label %exit, label %loop |
| |
| exit: |
| ret void |
| } |
| |
| attributes #0 = { "target-features"="+sve" } |
