| ; NOTE: Assertions have been autogenerated by utils/update_test_checks.py |
| ; RUN: opt -force-vector-width=4 -force-vector-interleave=1 -loop-vectorize -S %s | FileCheck %s |
| |
| target datalayout = "e-m:o-p270:32:32-p271:32:32-p272:64:64-i64:64-f80:128-n8:16:32:64-S128" |
| |
| define i32 @test(i64 %N, i32 %x) { |
| ; CHECK-LABEL: @test( |
| ; CHECK-NEXT: entry: |
| ; CHECK-NEXT: [[EXTRA_ITER:%.*]] = and i64 [[N:%.*]], 7 |
| ; CHECK-NEXT: br label [[CHECK:%.*]] |
| ; CHECK: check: |
| ; CHECK-NEXT: [[EXTRA_ITER_CHECK:%.*]] = icmp eq i64 [[EXTRA_ITER]], 0 |
| ; CHECK-NEXT: br i1 [[EXTRA_ITER_CHECK]], label [[EXIT:%.*]], label [[LOOP_PREHEADER:%.*]] |
| ; CHECK: loop.preheader: |
| ; CHECK-NEXT: br i1 false, label [[SCALAR_PH:%.*]], label [[VECTOR_PH:%.*]] |
| ; CHECK: vector.ph: |
| ; CHECK-NEXT: [[N_RND_UP:%.*]] = add i64 [[EXTRA_ITER]], 3 |
| ; CHECK-NEXT: [[N_MOD_VF:%.*]] = urem i64 [[N_RND_UP]], 4 |
| ; CHECK-NEXT: [[N_VEC:%.*]] = sub i64 [[N_RND_UP]], [[N_MOD_VF]] |
| ; CHECK-NEXT: [[IND_END:%.*]] = sub i64 [[EXTRA_ITER]], [[N_VEC]] |
| ; CHECK-NEXT: [[TRIP_COUNT_MINUS_1:%.*]] = sub i64 [[EXTRA_ITER]], 1 |
| ; CHECK-NEXT: [[BROADCAST_SPLATINSERT:%.*]] = insertelement <4 x i64> poison, i64 [[TRIP_COUNT_MINUS_1]], i32 0 |
| ; CHECK-NEXT: [[BROADCAST_SPLAT:%.*]] = shufflevector <4 x i64> [[BROADCAST_SPLATINSERT]], <4 x i64> poison, <4 x i32> zeroinitializer |
| ; CHECK-NEXT: br label [[VECTOR_BODY:%.*]] |
| ; CHECK: vector.body: |
| ; CHECK-NEXT: [[INDEX:%.*]] = phi i64 [ 0, [[VECTOR_PH]] ], [ [[INDEX_NEXT:%.*]], [[VECTOR_BODY]] ] |
| ; CHECK-NEXT: [[VEC_PHI:%.*]] = phi <4 x i32> [ zeroinitializer, [[VECTOR_PH]] ], [ [[TMP3:%.*]], [[VECTOR_BODY]] ] |
| ; CHECK-NEXT: [[OFFSET_IDX:%.*]] = sub i64 [[EXTRA_ITER]], [[INDEX]] |
| ; CHECK-NEXT: [[BROADCAST_SPLATINSERT1:%.*]] = insertelement <4 x i64> poison, i64 [[OFFSET_IDX]], i32 0 |
| ; CHECK-NEXT: [[BROADCAST_SPLAT2:%.*]] = shufflevector <4 x i64> [[BROADCAST_SPLATINSERT1]], <4 x i64> poison, <4 x i32> zeroinitializer |
| ; CHECK-NEXT: [[INDUCTION:%.*]] = add <4 x i64> [[BROADCAST_SPLAT2]], <i64 0, i64 -1, i64 -2, i64 -3> |
| ; CHECK-NEXT: [[TMP0:%.*]] = add i64 [[OFFSET_IDX]], 0 |
| ; CHECK-NEXT: [[BROADCAST_SPLATINSERT3:%.*]] = insertelement <4 x i64> poison, i64 [[INDEX]], i32 0 |
| ; CHECK-NEXT: [[BROADCAST_SPLAT4:%.*]] = shufflevector <4 x i64> [[BROADCAST_SPLATINSERT3]], <4 x i64> poison, <4 x i32> zeroinitializer |
| ; CHECK-NEXT: [[VEC_IV:%.*]] = add <4 x i64> [[BROADCAST_SPLAT4]], <i64 0, i64 1, i64 2, i64 3> |
| ; CHECK-NEXT: [[TMP1:%.*]] = icmp ule <4 x i64> [[VEC_IV]], [[BROADCAST_SPLAT]] |
| ; CHECK-NEXT: [[TMP2:%.*]] = icmp sgt <4 x i32> [[VEC_PHI]], <i32 10, i32 10, i32 10, i32 10> |
| ; CHECK-NEXT: [[TMP3]] = select <4 x i1> [[TMP2]], <4 x i32> [[VEC_PHI]], <4 x i32> <i32 10, i32 10, i32 10, i32 10> |
| ; CHECK-NEXT: [[TMP4:%.*]] = select <4 x i1> [[TMP1]], <4 x i32> [[TMP3]], <4 x i32> [[VEC_PHI]] |
| ; CHECK-NEXT: [[INDEX_NEXT]] = add i64 [[INDEX]], 4 |
| ; CHECK-NEXT: [[TMP5:%.*]] = icmp eq i64 [[INDEX_NEXT]], [[N_VEC]] |
| ; CHECK-NEXT: br i1 [[TMP5]], label [[MIDDLE_BLOCK:%.*]], label [[VECTOR_BODY]], [[LOOP0:!llvm.loop !.*]] |
| ; CHECK: middle.block: |
| ; CHECK-NEXT: [[RDX_SHUF:%.*]] = shufflevector <4 x i32> [[TMP4]], <4 x i32> poison, <4 x i32> <i32 2, i32 3, i32 undef, i32 undef> |
| ; CHECK-NEXT: [[RDX_MINMAX_CMP:%.*]] = icmp sgt <4 x i32> [[TMP4]], [[RDX_SHUF]] |
| ; CHECK-NEXT: [[RDX_MINMAX_SELECT:%.*]] = select <4 x i1> [[RDX_MINMAX_CMP]], <4 x i32> [[TMP4]], <4 x i32> [[RDX_SHUF]] |
| ; CHECK-NEXT: [[RDX_SHUF5:%.*]] = shufflevector <4 x i32> [[RDX_MINMAX_SELECT]], <4 x i32> poison, <4 x i32> <i32 1, i32 undef, i32 undef, i32 undef> |
| ; CHECK-NEXT: [[RDX_MINMAX_CMP6:%.*]] = icmp sgt <4 x i32> [[RDX_MINMAX_SELECT]], [[RDX_SHUF5]] |
| ; CHECK-NEXT: [[RDX_MINMAX_SELECT7:%.*]] = select <4 x i1> [[RDX_MINMAX_CMP6]], <4 x i32> [[RDX_MINMAX_SELECT]], <4 x i32> [[RDX_SHUF5]] |
| ; CHECK-NEXT: [[TMP6:%.*]] = extractelement <4 x i32> [[RDX_MINMAX_SELECT7]], i32 0 |
| ; CHECK-NEXT: br i1 true, label [[EXIT_LOOPEXIT:%.*]], label [[SCALAR_PH]] |
| ; CHECK: scalar.ph: |
| ; CHECK-NEXT: [[BC_RESUME_VAL:%.*]] = phi i64 [ [[IND_END]], [[MIDDLE_BLOCK]] ], [ [[EXTRA_ITER]], [[LOOP_PREHEADER]] ] |
| ; CHECK-NEXT: [[BC_MERGE_RDX:%.*]] = phi i32 [ 0, [[LOOP_PREHEADER]] ], [ [[TMP6]], [[MIDDLE_BLOCK]] ] |
| ; CHECK-NEXT: br label [[LOOP:%.*]] |
| ; CHECK: loop: |
| ; CHECK-NEXT: [[NEXT:%.*]] = phi i32 [ [[SEL:%.*]], [[LOOP]] ], [ [[BC_MERGE_RDX]], [[SCALAR_PH]] ] |
| ; CHECK-NEXT: [[IV:%.*]] = phi i64 [ [[IV_NEXT:%.*]], [[LOOP]] ], [ [[BC_RESUME_VAL]], [[SCALAR_PH]] ] |
| ; CHECK-NEXT: [[SEL_COND:%.*]] = icmp sgt i32 [[NEXT]], 10 |
| ; CHECK-NEXT: [[SEL]] = select i1 [[SEL_COND]], i32 [[NEXT]], i32 10 |
| ; CHECK-NEXT: [[IV_NEXT]] = add nsw i64 [[IV]], -1 |
| ; CHECK-NEXT: [[EC:%.*]] = icmp eq i64 [[IV_NEXT]], 0 |
| ; CHECK-NEXT: br i1 [[EC]], label [[EXIT_LOOPEXIT]], label [[LOOP]], [[LOOP2:!llvm.loop !.*]] |
| ; CHECK: exit.loopexit: |
| ; CHECK-NEXT: [[SEL_LCSSA:%.*]] = phi i32 [ [[SEL]], [[LOOP]] ], [ [[TMP6]], [[MIDDLE_BLOCK]] ] |
| ; CHECK-NEXT: br label [[EXIT]] |
| ; CHECK: exit: |
| ; CHECK-NEXT: [[RESULT:%.*]] = phi i32 [ 0, [[CHECK]] ], [ [[SEL_LCSSA]], [[EXIT_LOOPEXIT]] ] |
| ; CHECK-NEXT: ret i32 [[RESULT]] |
| ; |
| entry: |
| %extra.iter = and i64 %N, 7 |
| br label %check |
| |
| check: |
| %extra.iter.check = icmp eq i64 %extra.iter, 0 |
| br i1 %extra.iter.check, label %exit, label %loop |
| |
| loop: |
| %next = phi i32 [ %sel, %loop ], [ 0, %check ] |
| %iv = phi i64 [ %iv.next, %loop ], [ %extra.iter, %check ] |
| %sel.cond = icmp sgt i32 %next, 10 |
| %sel = select i1 %sel.cond, i32 %next, i32 10 |
| %iv.next = add nsw i64 %iv, -1 |
| %ec = icmp eq i64 %iv.next, 0 |
| br i1 %ec, label %exit, label %loop |
| |
| exit: |
| %result = phi i32 [ %sel, %loop], [ 0, %check ] |
| ret i32 %result |
| } |