diff options
Diffstat (limited to 'llvm/test/Transforms/LoopVectorize/runtime-check-needed-but-empty.ll')
| -rw-r--r-- | llvm/test/Transforms/LoopVectorize/runtime-check-needed-but-empty.ll | 139 |
1 files changed, 111 insertions, 28 deletions
diff --git a/llvm/test/Transforms/LoopVectorize/runtime-check-needed-but-empty.ll b/llvm/test/Transforms/LoopVectorize/runtime-check-needed-but-empty.ll index 44d292593676..7a97830224b8 100644 --- a/llvm/test/Transforms/LoopVectorize/runtime-check-needed-but-empty.ll +++ b/llvm/test/Transforms/LoopVectorize/runtime-check-needed-but-empty.ll @@ -1,36 +1,37 @@ -; NOTE: Assertions have been autogenerated by utils/update_test_checks.py +; NOTE: Assertions have been autogenerated by utils/update_test_checks.py UTC_ARGS: --version 5 ; RUN: opt -passes=loop-vectorize -force-vector-width=4 -S %s | FileCheck %s define void @test(ptr %A, i32 %x) { -; CHECK-LABEL: @test( -; CHECK-NEXT: entry: -; CHECK-NEXT: br i1 false, label [[SCALAR_PH:%.*]], label [[VECTOR_SCEVCHECK:%.*]] -; CHECK: vector.scevcheck: -; CHECK-NEXT: [[IDENT_CHECK:%.*]] = icmp ne i32 [[X:%.*]], 1 -; CHECK-NEXT: br i1 [[IDENT_CHECK]], label [[SCALAR_PH]], label [[VECTOR_PH:%.*]] -; CHECK: vector.ph: -; CHECK-NEXT: br label [[VECTOR_BODY:%.*]] -; CHECK: vector.body: -; CHECK-NEXT: [[OFFSET_IDX:%.*]] = phi i64 [ 0, [[VECTOR_PH]] ], [ [[INDEX_NEXT:%.*]], [[VECTOR_BODY]] ] +; CHECK-LABEL: define void @test( +; CHECK-SAME: ptr [[A:%.*]], i32 [[X:%.*]]) { +; CHECK-NEXT: [[ENTRY:.*]]: +; CHECK-NEXT: br i1 false, label %[[SCALAR_PH:.*]], label %[[VECTOR_SCEVCHECK:.*]] +; CHECK: [[VECTOR_SCEVCHECK]]: +; CHECK-NEXT: [[IDENT_CHECK:%.*]] = icmp ne i32 [[X]], 1 +; CHECK-NEXT: br i1 [[IDENT_CHECK]], label %[[SCALAR_PH]], label %[[VECTOR_PH:.*]] +; CHECK: [[VECTOR_PH]]: +; CHECK-NEXT: br label %[[VECTOR_BODY:.*]] +; CHECK: [[VECTOR_BODY]]: +; CHECK-NEXT: [[OFFSET_IDX:%.*]] = phi i64 [ 0, %[[VECTOR_PH]] ], [ [[INDEX_NEXT:%.*]], %[[VECTOR_BODY]] ] ; CHECK-NEXT: [[TMP0:%.*]] = trunc i64 [[OFFSET_IDX]] to i32 ; CHECK-NEXT: [[TMP3:%.*]] = add nuw nsw i64 [[OFFSET_IDX]], 1 ; CHECK-NEXT: [[TMP4:%.*]] = trunc i64 [[TMP3]] to i32 ; CHECK-NEXT: [[TMP5:%.*]] = zext i32 [[TMP4]] to i64 -; CHECK-NEXT: [[TMP6:%.*]] = getelementptr inbounds float, ptr [[A:%.*]], i64 [[TMP5]] +; CHECK-NEXT: [[TMP6:%.*]] = getelementptr inbounds float, ptr [[A]], i64 [[TMP5]] ; CHECK-NEXT: [[WIDE_LOAD:%.*]] = load <4 x float>, ptr [[TMP6]], align 4 ; CHECK-NEXT: [[TMP8:%.*]] = zext i32 [[TMP0]] to i64 ; CHECK-NEXT: [[TMP9:%.*]] = getelementptr inbounds float, ptr [[A]], i64 [[TMP8]] ; CHECK-NEXT: store <4 x float> [[WIDE_LOAD]], ptr [[TMP9]], align 4 ; CHECK-NEXT: [[INDEX_NEXT]] = add nuw i64 [[OFFSET_IDX]], 4 -; CHECK-NEXT: [[TMP11:%.*]] = icmp eq i64 [[INDEX_NEXT]], undef -; CHECK-NEXT: br i1 [[TMP11]], label [[MIDDLE_BLOCK:%.*]], label [[VECTOR_BODY]], !llvm.loop [[LOOP0:![0-9]+]] -; CHECK: middle.block: -; CHECK-NEXT: br i1 undef, label [[EXIT:%.*]], label [[SCALAR_PH]] -; CHECK: scalar.ph: -; CHECK-NEXT: [[BC_RESUME_VAL:%.*]] = phi i64 [ undef, [[MIDDLE_BLOCK]] ], [ 0, [[ENTRY:%.*]] ], [ 0, [[VECTOR_SCEVCHECK]] ] -; CHECK-NEXT: br label [[LOOP:%.*]] -; CHECK: loop: -; CHECK-NEXT: [[IV:%.*]] = phi i64 [ [[IV_NEXT:%.*]], [[LOOP]] ], [ [[BC_RESUME_VAL]], [[SCALAR_PH]] ] +; CHECK-NEXT: [[TMP7:%.*]] = icmp eq i64 [[INDEX_NEXT]], 1000 +; CHECK-NEXT: br i1 [[TMP7]], label %[[MIDDLE_BLOCK:.*]], label %[[VECTOR_BODY]], !llvm.loop [[LOOP0:![0-9]+]] +; CHECK: [[MIDDLE_BLOCK]]: +; CHECK-NEXT: br label %[[EXIT:.*]] +; CHECK: [[SCALAR_PH]]: +; CHECK-NEXT: [[BC_RESUME_VAL:%.*]] = phi i64 [ 0, %[[ENTRY]] ], [ 0, %[[VECTOR_SCEVCHECK]] ] +; CHECK-NEXT: br label %[[LOOP:.*]] +; CHECK: [[LOOP]]: +; CHECK-NEXT: [[IV:%.*]] = phi i64 [ [[IV_NEXT:%.*]], %[[LOOP]] ], [ [[BC_RESUME_VAL]], %[[SCALAR_PH]] ] ; CHECK-NEXT: [[IV_NEXT]] = add nuw nsw i64 [[IV]], 1 ; CHECK-NEXT: [[T_IV_NEXT:%.*]] = trunc i64 [[IV_NEXT]] to i32 ; CHECK-NEXT: [[MUL_IV_NEXT:%.*]] = mul i32 [[T_IV_NEXT]], [[X]] @@ -42,15 +43,15 @@ define void @test(ptr %A, i32 %x) { ; CHECK-NEXT: [[IDX_2:%.*]] = zext i32 [[MUL_IV]] to i64 ; CHECK-NEXT: [[ARRAYIDX1209:%.*]] = getelementptr inbounds float, ptr [[A]], i64 [[IDX_2]] ; CHECK-NEXT: store float [[LV]], ptr [[ARRAYIDX1209]], align 4 -; CHECK-NEXT: [[EC:%.*]] = icmp eq i64 [[IV_NEXT]], undef -; CHECK-NEXT: br i1 [[EC]], label [[EXIT]], label [[LOOP]], !llvm.loop [[LOOP3:![0-9]+]] -; CHECK: exit: +; CHECK-NEXT: [[EC:%.*]] = icmp eq i64 [[IV_NEXT]], 1000 +; CHECK-NEXT: br i1 [[EC]], label %[[EXIT]], label %[[LOOP]], !llvm.loop [[LOOP3:![0-9]+]] +; CHECK: [[EXIT]]: ; CHECK-NEXT: ret void ; entry: br label %loop -loop: ; preds = %loop, %entry +loop: %iv = phi i64 [ %iv.next, %loop ], [ 0, %entry ] %iv.next = add nuw nsw i64 %iv, 1 %t.iv.next = trunc i64 %iv.next to i32 @@ -58,15 +59,97 @@ loop: ; preds = %loop, %entry %idx.1 = zext i32 %mul.iv.next to i64 %arrayidx1215 = getelementptr inbounds float, ptr %A, i64 %idx.1 %lv = load float, ptr %arrayidx1215, align 4 - %t.iv = trunc i64 %iv to i32 %mul.iv = mul i32 %t.iv, %x %idx.2 = zext i32 %mul.iv to i64 %arrayidx1209 = getelementptr inbounds float, ptr %A, i64 %idx.2 store float %lv, ptr %arrayidx1209, align 4 - %ec = icmp eq i64 %iv.next, undef + %ec = icmp eq i64 %iv.next, 1000 br i1 %ec, label %exit, label %loop -exit: ; preds = %loop +exit: + ret void +} + +; !llvm.loop.unroll.runtime.disable metadata should be added to the +; scalar loop, as there are no runtime checks needed (or they can be proven +; false). +define void @diff_memcheck_known_false_for_vf_4(ptr %B, ptr %A, ptr %end) { +; CHECK-LABEL: define void @diff_memcheck_known_false_for_vf_4( +; CHECK-SAME: ptr [[B:%.*]], ptr [[A:%.*]], ptr [[END:%.*]]) { +; CHECK-NEXT: [[ENTRY:.*]]: +; CHECK-NEXT: [[END1:%.*]] = ptrtoint ptr [[END]] to i64 +; CHECK-NEXT: [[A_INT:%.*]] = ptrtoint ptr [[A]] to i64 +; CHECK-NEXT: [[B_CAST:%.*]] = ptrtoint ptr [[B]] to i64 +; CHECK-NEXT: [[PTR_SUB:%.*]] = sub i64 [[A_INT]], [[B_CAST]] +; CHECK-NEXT: [[ADD_PTR11:%.*]] = getelementptr i8, ptr [[B]], i64 [[PTR_SUB]] +; CHECK-NEXT: [[TMP0:%.*]] = sub i64 [[A_INT]], [[END1]] +; CHECK-NEXT: [[TMP1:%.*]] = lshr i64 [[TMP0]], 3 +; CHECK-NEXT: [[TMP2:%.*]] = add nuw nsw i64 [[TMP1]], 1 +; CHECK-NEXT: [[MIN_ITERS_CHECK:%.*]] = icmp ult i64 [[TMP2]], 4 +; CHECK-NEXT: br i1 [[MIN_ITERS_CHECK]], label %[[SCALAR_PH:.*]], label %[[VECTOR_PH:.*]] +; CHECK: [[VECTOR_PH]]: +; CHECK-NEXT: [[N_MOD_VF:%.*]] = urem i64 [[TMP2]], 4 +; CHECK-NEXT: [[N_VEC:%.*]] = sub i64 [[TMP2]], [[N_MOD_VF]] +; CHECK-NEXT: [[TMP3:%.*]] = mul i64 [[N_VEC]], -8 +; CHECK-NEXT: [[TMP4:%.*]] = getelementptr i8, ptr [[A]], i64 [[TMP3]] +; CHECK-NEXT: [[TMP5:%.*]] = mul i64 [[N_VEC]], -8 +; CHECK-NEXT: [[TMP6:%.*]] = getelementptr i8, ptr [[ADD_PTR11]], i64 [[TMP5]] +; CHECK-NEXT: br label %[[VECTOR_BODY:.*]] +; CHECK: [[VECTOR_BODY]]: +; CHECK-NEXT: [[INDEX:%.*]] = phi i64 [ 0, %[[VECTOR_PH]] ], [ [[INDEX_NEXT:%.*]], %[[VECTOR_BODY]] ] +; CHECK-NEXT: [[OFFSET_IDX:%.*]] = mul i64 [[INDEX]], -8 +; CHECK-NEXT: [[NEXT_GEP:%.*]] = getelementptr i8, ptr [[A]], i64 [[OFFSET_IDX]] +; CHECK-NEXT: [[TMP7:%.*]] = getelementptr i64, ptr [[NEXT_GEP]], i32 0 +; CHECK-NEXT: [[TMP8:%.*]] = getelementptr i64, ptr [[TMP7]], i32 -3 +; CHECK-NEXT: store <4 x i64> zeroinitializer, ptr [[TMP8]], align 8 +; CHECK-NEXT: [[INDEX_NEXT]] = add nuw i64 [[INDEX]], 4 +; CHECK-NEXT: [[TMP9:%.*]] = icmp eq i64 [[INDEX_NEXT]], [[N_VEC]] +; CHECK-NEXT: br i1 [[TMP9]], label %[[MIDDLE_BLOCK:.*]], label %[[VECTOR_BODY]], !llvm.loop [[LOOP4:![0-9]+]] +; CHECK: [[MIDDLE_BLOCK]]: +; CHECK-NEXT: [[CMP_N:%.*]] = icmp eq i64 [[TMP2]], [[N_VEC]] +; CHECK-NEXT: br i1 [[CMP_N]], label %[[EXIT:.*]], label %[[SCALAR_PH]] +; CHECK: [[SCALAR_PH]]: +; CHECK-NEXT: [[BC_RESUME_VAL:%.*]] = phi ptr [ [[TMP4]], %[[MIDDLE_BLOCK]] ], [ [[A]], %[[ENTRY]] ] +; CHECK-NEXT: [[BC_RESUME_VAL2:%.*]] = phi ptr [ [[TMP6]], %[[MIDDLE_BLOCK]] ], [ [[ADD_PTR11]], %[[ENTRY]] ] +; CHECK-NEXT: br label %[[LOOP:.*]] +; CHECK: [[LOOP]]: +; CHECK-NEXT: [[IV_1:%.*]] = phi ptr [ [[IV_1_NEXT:%.*]], %[[LOOP]] ], [ [[BC_RESUME_VAL]], %[[SCALAR_PH]] ] +; CHECK-NEXT: [[IV_2:%.*]] = phi ptr [ [[IV_2_NEXT:%.*]], %[[LOOP]] ], [ [[BC_RESUME_VAL2]], %[[SCALAR_PH]] ] +; CHECK-NEXT: [[IV_2_NEXT]] = getelementptr nusw i8, ptr [[IV_2]], i64 -8 +; CHECK-NEXT: [[IV_1_NEXT]] = getelementptr i8, ptr [[IV_1]], i64 -8 +; CHECK-NEXT: [[TMP10:%.*]] = load i64, ptr [[IV_2_NEXT]], align 8 +; CHECK-NEXT: store i64 0, ptr [[IV_1]], align 8 +; CHECK-NEXT: [[CMP_NOT_I_I_I_I:%.*]] = icmp eq ptr [[END]], [[IV_2]] +; CHECK-NEXT: br i1 [[CMP_NOT_I_I_I_I]], label %[[EXIT]], label %[[LOOP]], !llvm.loop [[LOOP5:![0-9]+]] +; CHECK: [[EXIT]]: +; CHECK-NEXT: ret void +; +entry: + %A.int = ptrtoint ptr %A to i64 + %B.cast = ptrtoint ptr %B to i64 + %ptr.sub = sub i64 %A.int, %B.cast + %add.ptr11 = getelementptr i8, ptr %B, i64 %ptr.sub + br label %loop + +loop: + %iv.1 = phi ptr [ %iv.1.next, %loop ], [ %A, %entry ] + %iv.2 = phi ptr [ %iv.2.next, %loop ], [ %add.ptr11, %entry ] + %iv.2.next = getelementptr nusw i8, ptr %iv.2, i64 -8 + %iv.1.next = getelementptr i8, ptr %iv.1, i64 -8 + %2 = load i64, ptr %iv.2.next, align 8 + store i64 0, ptr %iv.1, align 8 + %cmp.not.i.i.i.i = icmp eq ptr %end, %iv.2 + br i1 %cmp.not.i.i.i.i, label %exit, label %loop + +exit: ret void } +;. +; CHECK: [[LOOP0]] = distinct !{[[LOOP0]], [[META1:![0-9]+]], [[META2:![0-9]+]]} +; CHECK: [[META1]] = !{!"llvm.loop.isvectorized", i32 1} +; CHECK: [[META2]] = !{!"llvm.loop.unroll.runtime.disable"} +; CHECK: [[LOOP3]] = distinct !{[[LOOP3]], [[META1]]} +; CHECK: [[LOOP4]] = distinct !{[[LOOP4]], [[META1]], [[META2]]} +; CHECK: [[LOOP5]] = distinct !{[[LOOP5]], [[META2]], [[META1]]} +;. |