| ; NOTE: Assertions have been autogenerated by utils/update_test_checks.py UTC_ARGS: --check-globals none --version 5 |
| ; RUN: opt -p loop-vectorize -force-vector-width=8 -force-vector-interleave=1 -S %s | FileCheck --check-prefixes=VF8UF1 %s |
| ; RUN: opt -p loop-vectorize -force-vector-width=8 -force-vector-interleave=2 -S %s | FileCheck --check-prefixes=VF8UF2 %s |
| ; RUN: opt -p loop-vectorize -force-vector-width=16 -force-vector-interleave=1 -S %s | FileCheck --check-prefixes=VF16UF1 %s |
| |
| ; Check if the vector loop condition can be simplified to true for a given |
| ; VF/IC combination. |
| define void @test_tc_between_8_and_17(ptr %A, i64 range(i64 8, 17) %N) { |
| ; VF8UF1-LABEL: define void @test_tc_between_8_and_17( |
| ; VF8UF1-SAME: ptr [[A:%.*]], i64 range(i64 8, 17) [[N:%.*]]) { |
| ; VF8UF1-NEXT: [[ENTRY:.*:]] |
| ; VF8UF1-NEXT: br label %[[VECTOR_PH:.*]] |
| ; VF8UF1: [[VECTOR_PH]]: |
| ; VF8UF1-NEXT: [[N_MOD_VF:%.*]] = urem i64 [[N]], 8 |
| ; VF8UF1-NEXT: [[N_VEC:%.*]] = sub i64 [[N]], [[N_MOD_VF]] |
| ; VF8UF1-NEXT: [[TMP0:%.*]] = getelementptr i8, ptr [[A]], i64 [[N_VEC]] |
| ; VF8UF1-NEXT: br label %[[VECTOR_BODY:.*]] |
| ; VF8UF1: [[VECTOR_BODY]]: |
| ; VF8UF1-NEXT: [[INDEX:%.*]] = phi i64 [ 0, %[[VECTOR_PH]] ], [ [[INDEX_NEXT:%.*]], %[[VECTOR_BODY]] ] |
| ; VF8UF1-NEXT: [[NEXT_GEP:%.*]] = getelementptr i8, ptr [[A]], i64 [[INDEX]] |
| ; VF8UF1-NEXT: [[WIDE_LOAD:%.*]] = load <8 x i8>, ptr [[NEXT_GEP]], align 1 |
| ; VF8UF1-NEXT: [[TMP2:%.*]] = add nsw <8 x i8> [[WIDE_LOAD]], splat (i8 10) |
| ; VF8UF1-NEXT: store <8 x i8> [[TMP2]], ptr [[NEXT_GEP]], align 1 |
| ; VF8UF1-NEXT: [[INDEX_NEXT]] = add nuw i64 [[INDEX]], 8 |
| ; VF8UF1-NEXT: [[TMP3:%.*]] = icmp eq i64 [[INDEX_NEXT]], [[N_VEC]] |
| ; VF8UF1-NEXT: br i1 [[TMP3]], label %[[MIDDLE_BLOCK:.*]], label %[[VECTOR_BODY]], !prof [[PROF0:![0-9]+]], !llvm.loop [[LOOP1:![0-9]+]] |
| ; VF8UF1: [[MIDDLE_BLOCK]]: |
| ; VF8UF1-NEXT: [[CMP_N:%.*]] = icmp eq i64 [[N]], [[N_VEC]] |
| ; VF8UF1-NEXT: br i1 [[CMP_N]], label %[[EXIT:.*]], label %[[SCALAR_PH:.*]], !prof [[PROF4:![0-9]+]] |
| ; VF8UF1: [[SCALAR_PH]]: |
| ; VF8UF1-NEXT: br label %[[LOOP:.*]] |
| ; VF8UF1: [[LOOP]]: |
| ; VF8UF1-NEXT: [[IV:%.*]] = phi i64 [ [[N_VEC]], %[[SCALAR_PH]] ], [ [[IV_NEXT:%.*]], %[[LOOP]] ] |
| ; VF8UF1-NEXT: [[P_SRC:%.*]] = phi ptr [ [[TMP0]], %[[SCALAR_PH]] ], [ [[P_SRC_NEXT:%.*]], %[[LOOP]] ] |
| ; VF8UF1-NEXT: [[P_SRC_NEXT]] = getelementptr inbounds i8, ptr [[P_SRC]], i64 1 |
| ; VF8UF1-NEXT: [[L:%.*]] = load i8, ptr [[P_SRC]], align 1 |
| ; VF8UF1-NEXT: [[ADD:%.*]] = add nsw i8 [[L]], 10 |
| ; VF8UF1-NEXT: store i8 [[ADD]], ptr [[P_SRC]], align 1 |
| ; VF8UF1-NEXT: [[IV_NEXT]] = add nsw i64 [[IV]], 1 |
| ; VF8UF1-NEXT: [[CMP:%.*]] = icmp eq i64 [[IV_NEXT]], [[N]] |
| ; VF8UF1-NEXT: br i1 [[CMP]], label %[[EXIT]], label %[[LOOP]], !prof [[PROF5:![0-9]+]], !llvm.loop [[LOOP6:![0-9]+]] |
| ; VF8UF1: [[EXIT]]: |
| ; VF8UF1-NEXT: ret void |
| ; |
| ; VF8UF2-LABEL: define void @test_tc_between_8_and_17( |
| ; VF8UF2-SAME: ptr [[A:%.*]], i64 range(i64 8, 17) [[N:%.*]]) { |
| ; VF8UF2-NEXT: [[ENTRY:.*]]: |
| ; VF8UF2-NEXT: [[MIN_ITERS_CHECK:%.*]] = icmp ult i64 [[N]], 16 |
| ; VF8UF2-NEXT: br i1 [[MIN_ITERS_CHECK]], label %[[SCALAR_PH:.*]], label %[[VECTOR_PH:.*]], !prof [[PROF0:![0-9]+]] |
| ; VF8UF2: [[VECTOR_PH]]: |
| ; VF8UF2-NEXT: [[N_MOD_VF:%.*]] = urem i64 [[N]], 16 |
| ; VF8UF2-NEXT: [[N_VEC:%.*]] = sub i64 [[N]], [[N_MOD_VF]] |
| ; VF8UF2-NEXT: [[TMP0:%.*]] = getelementptr i8, ptr [[A]], i64 [[N_VEC]] |
| ; VF8UF2-NEXT: br label %[[VECTOR_BODY:.*]] |
| ; VF8UF2: [[VECTOR_BODY]]: |
| ; VF8UF2-NEXT: [[TMP2:%.*]] = getelementptr i8, ptr [[A]], i32 8 |
| ; VF8UF2-NEXT: [[WIDE_LOAD:%.*]] = load <8 x i8>, ptr [[A]], align 1 |
| ; VF8UF2-NEXT: [[WIDE_LOAD1:%.*]] = load <8 x i8>, ptr [[TMP2]], align 1 |
| ; VF8UF2-NEXT: [[TMP3:%.*]] = add nsw <8 x i8> [[WIDE_LOAD]], splat (i8 10) |
| ; VF8UF2-NEXT: [[TMP4:%.*]] = add nsw <8 x i8> [[WIDE_LOAD1]], splat (i8 10) |
| ; VF8UF2-NEXT: store <8 x i8> [[TMP3]], ptr [[A]], align 1 |
| ; VF8UF2-NEXT: store <8 x i8> [[TMP4]], ptr [[TMP2]], align 1 |
| ; VF8UF2-NEXT: br label %[[MIDDLE_BLOCK:.*]] |
| ; VF8UF2: [[MIDDLE_BLOCK]]: |
| ; VF8UF2-NEXT: [[CMP_N:%.*]] = icmp eq i64 [[N]], [[N_VEC]] |
| ; VF8UF2-NEXT: br i1 [[CMP_N]], label %[[EXIT:.*]], label %[[SCALAR_PH]], !prof [[PROF1:![0-9]+]] |
| ; VF8UF2: [[SCALAR_PH]]: |
| ; VF8UF2-NEXT: [[BC_RESUME_VAL:%.*]] = phi i64 [ [[N_VEC]], %[[MIDDLE_BLOCK]] ], [ 0, %[[ENTRY]] ] |
| ; VF8UF2-NEXT: [[BC_RESUME_VAL2:%.*]] = phi ptr [ [[TMP0]], %[[MIDDLE_BLOCK]] ], [ [[A]], %[[ENTRY]] ] |
| ; VF8UF2-NEXT: br label %[[LOOP:.*]] |
| ; VF8UF2: [[LOOP]]: |
| ; VF8UF2-NEXT: [[IV:%.*]] = phi i64 [ [[BC_RESUME_VAL]], %[[SCALAR_PH]] ], [ [[IV_NEXT:%.*]], %[[LOOP]] ] |
| ; VF8UF2-NEXT: [[P_SRC:%.*]] = phi ptr [ [[BC_RESUME_VAL2]], %[[SCALAR_PH]] ], [ [[P_SRC_NEXT:%.*]], %[[LOOP]] ] |
| ; VF8UF2-NEXT: [[P_SRC_NEXT]] = getelementptr inbounds i8, ptr [[P_SRC]], i64 1 |
| ; VF8UF2-NEXT: [[L:%.*]] = load i8, ptr [[P_SRC]], align 1 |
| ; VF8UF2-NEXT: [[ADD:%.*]] = add nsw i8 [[L]], 10 |
| ; VF8UF2-NEXT: store i8 [[ADD]], ptr [[P_SRC]], align 1 |
| ; VF8UF2-NEXT: [[IV_NEXT]] = add nsw i64 [[IV]], 1 |
| ; VF8UF2-NEXT: [[CMP:%.*]] = icmp eq i64 [[IV_NEXT]], [[N]] |
| ; VF8UF2-NEXT: br i1 [[CMP]], label %[[EXIT]], label %[[LOOP]], !prof [[PROF2:![0-9]+]], !llvm.loop [[LOOP3:![0-9]+]] |
| ; VF8UF2: [[EXIT]]: |
| ; VF8UF2-NEXT: ret void |
| ; |
| ; VF16UF1-LABEL: define void @test_tc_between_8_and_17( |
| ; VF16UF1-SAME: ptr [[A:%.*]], i64 range(i64 8, 17) [[N:%.*]]) { |
| ; VF16UF1-NEXT: [[ENTRY:.*]]: |
| ; VF16UF1-NEXT: [[MIN_ITERS_CHECK:%.*]] = icmp ult i64 [[N]], 16 |
| ; VF16UF1-NEXT: br i1 [[MIN_ITERS_CHECK]], label %[[SCALAR_PH:.*]], label %[[VECTOR_PH:.*]], !prof [[PROF0:![0-9]+]] |
| ; VF16UF1: [[VECTOR_PH]]: |
| ; VF16UF1-NEXT: [[N_MOD_VF:%.*]] = urem i64 [[N]], 16 |
| ; VF16UF1-NEXT: [[N_VEC:%.*]] = sub i64 [[N]], [[N_MOD_VF]] |
| ; VF16UF1-NEXT: [[TMP0:%.*]] = getelementptr i8, ptr [[A]], i64 [[N_VEC]] |
| ; VF16UF1-NEXT: br label %[[VECTOR_BODY:.*]] |
| ; VF16UF1: [[VECTOR_BODY]]: |
| ; VF16UF1-NEXT: [[WIDE_LOAD:%.*]] = load <16 x i8>, ptr [[A]], align 1 |
| ; VF16UF1-NEXT: [[TMP2:%.*]] = add nsw <16 x i8> [[WIDE_LOAD]], splat (i8 10) |
| ; VF16UF1-NEXT: store <16 x i8> [[TMP2]], ptr [[A]], align 1 |
| ; VF16UF1-NEXT: br label %[[MIDDLE_BLOCK:.*]] |
| ; VF16UF1: [[MIDDLE_BLOCK]]: |
| ; VF16UF1-NEXT: [[CMP_N:%.*]] = icmp eq i64 [[N]], [[N_VEC]] |
| ; VF16UF1-NEXT: br i1 [[CMP_N]], label %[[EXIT:.*]], label %[[SCALAR_PH]], !prof [[PROF1:![0-9]+]] |
| ; VF16UF1: [[SCALAR_PH]]: |
| ; VF16UF1-NEXT: [[BC_RESUME_VAL:%.*]] = phi i64 [ [[N_VEC]], %[[MIDDLE_BLOCK]] ], [ 0, %[[ENTRY]] ] |
| ; VF16UF1-NEXT: [[BC_RESUME_VAL1:%.*]] = phi ptr [ [[TMP0]], %[[MIDDLE_BLOCK]] ], [ [[A]], %[[ENTRY]] ] |
| ; VF16UF1-NEXT: br label %[[LOOP:.*]] |
| ; VF16UF1: [[LOOP]]: |
| ; VF16UF1-NEXT: [[IV:%.*]] = phi i64 [ [[BC_RESUME_VAL]], %[[SCALAR_PH]] ], [ [[IV_NEXT:%.*]], %[[LOOP]] ] |
| ; VF16UF1-NEXT: [[P_SRC:%.*]] = phi ptr [ [[BC_RESUME_VAL1]], %[[SCALAR_PH]] ], [ [[P_SRC_NEXT:%.*]], %[[LOOP]] ] |
| ; VF16UF1-NEXT: [[P_SRC_NEXT]] = getelementptr inbounds i8, ptr [[P_SRC]], i64 1 |
| ; VF16UF1-NEXT: [[L:%.*]] = load i8, ptr [[P_SRC]], align 1 |
| ; VF16UF1-NEXT: [[ADD:%.*]] = add nsw i8 [[L]], 10 |
| ; VF16UF1-NEXT: store i8 [[ADD]], ptr [[P_SRC]], align 1 |
| ; VF16UF1-NEXT: [[IV_NEXT]] = add nsw i64 [[IV]], 1 |
| ; VF16UF1-NEXT: [[CMP:%.*]] = icmp eq i64 [[IV_NEXT]], [[N]] |
| ; VF16UF1-NEXT: br i1 [[CMP]], label %[[EXIT]], label %[[LOOP]], !prof [[PROF2:![0-9]+]], !llvm.loop [[LOOP3:![0-9]+]] |
| ; VF16UF1: [[EXIT]]: |
| ; VF16UF1-NEXT: ret void |
| ; |
| entry: |
| br label %loop |
| |
| loop: |
| %iv = phi i64 [ 0, %entry ], [ %iv.next, %loop ] |
| %p.src = phi ptr [ %A, %entry ], [ %p.src.next, %loop ] |
| %p.src.next = getelementptr inbounds i8, ptr %p.src, i64 1 |
| %l = load i8, ptr %p.src, align 1 |
| %add = add nsw i8 %l, 10 |
| store i8 %add, ptr %p.src |
| %iv.next = add nsw i64 %iv, 1 |
| %cmp = icmp eq i64 %iv.next, %N |
| br i1 %cmp, label %exit, label %loop, !prof !0 |
| |
| exit: |
| ret void |
| } |
| |
| !0 = !{!"branch_weights", !"expected", i32 1, i32 2000} |
