| ; NOTE: Assertions have been autogenerated by utils/update_test_checks.py UTC_ARGS: --check-globals none --version 6 |
| ; RUN: opt -S -passes='loop-vectorize,verify' -enable-vplan-native-path -force-vector-width=2 < %s | FileCheck %s |
| |
| ; Test that non-widenable intrinsics in the outer loop are emitted as replicate |
| ; recipe and do not crash the VPlan native path. |
| |
| ; Check that llvm.assume is replicated per lane for the assumption. |
| define void @test_assume(ptr %arr, i64 %n) { |
| ; CHECK-LABEL: define void @test_assume( |
| ; CHECK-SAME: ptr [[ARR:%.*]], i64 [[N:%.*]]) { |
| ; CHECK-NEXT: [[ENTRY:.*]]: |
| ; CHECK-NEXT: [[MIN_ITERS_CHECK:%.*]] = icmp ult i64 [[N]], 2 |
| ; CHECK-NEXT: br i1 [[MIN_ITERS_CHECK]], label %[[SCALAR_PH:.*]], label %[[VECTOR_PH:.*]] |
| ; CHECK: [[VECTOR_PH]]: |
| ; CHECK-NEXT: [[N_MOD_VF:%.*]] = urem i64 [[N]], 2 |
| ; CHECK-NEXT: [[N_VEC:%.*]] = sub i64 [[N]], [[N_MOD_VF]] |
| ; CHECK-NEXT: [[BROADCAST_SPLATINSERT:%.*]] = insertelement <2 x i64> poison, i64 [[N]], i64 0 |
| ; CHECK-NEXT: [[BROADCAST_SPLAT:%.*]] = shufflevector <2 x i64> [[BROADCAST_SPLATINSERT]], <2 x i64> poison, <2 x i32> zeroinitializer |
| ; CHECK-NEXT: br label %[[VECTOR_BODY:.*]] |
| ; CHECK: [[VECTOR_BODY]]: |
| ; CHECK-NEXT: [[INDEX:%.*]] = phi i64 [ 0, %[[VECTOR_PH]] ], [ [[INDEX_NEXT:%.*]], %[[VECTOR_LATCH:.*]] ] |
| ; CHECK-NEXT: [[VEC_IND:%.*]] = phi <2 x i64> [ <i64 0, i64 1>, %[[VECTOR_PH]] ], [ [[VEC_IND_NEXT:%.*]], %[[VECTOR_LATCH]] ] |
| ; CHECK-NEXT: [[TMP0:%.*]] = icmp sgt <2 x i64> [[VEC_IND]], zeroinitializer |
| ; CHECK-NEXT: [[TMP9:%.*]] = extractelement <2 x i1> [[TMP0]], i64 0 |
| ; CHECK-NEXT: [[TMP8:%.*]] = extractelement <2 x i1> [[TMP0]], i64 1 |
| ; CHECK-NEXT: call void @llvm.assume(i1 [[TMP9]]) |
| ; CHECK-NEXT: call void @llvm.assume(i1 [[TMP8]]) |
| ; CHECK-NEXT: br label %[[INNER1:.*]] |
| ; CHECK: [[INNER1]]: |
| ; CHECK-NEXT: [[TMP1:%.*]] = phi <2 x i64> [ zeroinitializer, %[[VECTOR_BODY]] ], [ [[TMP4:%.*]], %[[INNER1]] ] |
| ; CHECK-NEXT: [[TMP2:%.*]] = add <2 x i64> [[VEC_IND]], [[TMP1]] |
| ; CHECK-NEXT: [[TMP3:%.*]] = getelementptr inbounds i32, ptr [[ARR]], <2 x i64> [[TMP2]] |
| ; CHECK-NEXT: call void @llvm.masked.scatter.v2i32.v2p0(<2 x i32> splat (i32 1), <2 x ptr> align 4 [[TMP3]], <2 x i1> splat (i1 true)) |
| ; CHECK-NEXT: [[TMP4]] = add <2 x i64> [[TMP1]], splat (i64 1) |
| ; CHECK-NEXT: [[TMP5:%.*]] = icmp eq <2 x i64> [[TMP4]], [[BROADCAST_SPLAT]] |
| ; CHECK-NEXT: [[TMP6:%.*]] = extractelement <2 x i1> [[TMP5]], i64 0 |
| ; CHECK-NEXT: br i1 [[TMP6]], label %[[VECTOR_LATCH]], label %[[INNER1]] |
| ; CHECK: [[VECTOR_LATCH]]: |
| ; CHECK-NEXT: [[INDEX_NEXT]] = add nuw i64 [[INDEX]], 2 |
| ; CHECK-NEXT: [[VEC_IND_NEXT]] = add <2 x i64> [[VEC_IND]], splat (i64 2) |
| ; CHECK-NEXT: [[TMP7:%.*]] = icmp eq i64 [[INDEX_NEXT]], [[N_VEC]] |
| ; CHECK-NEXT: br i1 [[TMP7]], label %[[MIDDLE_BLOCK:.*]], label %[[VECTOR_BODY]], !llvm.loop [[LOOP0:![0-9]+]] |
| ; CHECK: [[MIDDLE_BLOCK]]: |
| ; CHECK-NEXT: [[CMP_N:%.*]] = icmp eq i64 [[N]], [[N_VEC]] |
| ; CHECK-NEXT: br i1 [[CMP_N]], label %[[EXIT:.*]], label %[[SCALAR_PH]] |
| ; CHECK: [[SCALAR_PH]]: |
| ; CHECK-NEXT: [[BC_RESUME_VAL:%.*]] = phi i64 [ [[N_VEC]], %[[MIDDLE_BLOCK]] ], [ 0, %[[ENTRY]] ] |
| ; CHECK-NEXT: br label %[[OUTER_HEADER:.*]] |
| ; CHECK: [[OUTER_HEADER]]: |
| ; CHECK-NEXT: [[J:%.*]] = phi i64 [ [[BC_RESUME_VAL]], %[[SCALAR_PH]] ], [ [[J_NEXT:%.*]], %[[OUTER_LATCH:.*]] ] |
| ; CHECK-NEXT: [[CMP:%.*]] = icmp sgt i64 [[J]], 0 |
| ; CHECK-NEXT: call void @llvm.assume(i1 [[CMP]]) |
| ; CHECK-NEXT: br label %[[INNER:.*]] |
| ; CHECK: [[INNER]]: |
| ; CHECK-NEXT: [[K:%.*]] = phi i64 [ 0, %[[OUTER_HEADER]] ], [ [[K_NEXT:%.*]], %[[INNER]] ] |
| ; CHECK-NEXT: [[IDX:%.*]] = add i64 [[J]], [[K]] |
| ; CHECK-NEXT: [[PTR:%.*]] = getelementptr inbounds i32, ptr [[ARR]], i64 [[IDX]] |
| ; CHECK-NEXT: store i32 1, ptr [[PTR]], align 4 |
| ; CHECK-NEXT: [[K_NEXT]] = add i64 [[K]], 1 |
| ; CHECK-NEXT: [[INNER_COND:%.*]] = icmp eq i64 [[K_NEXT]], [[N]] |
| ; CHECK-NEXT: br i1 [[INNER_COND]], label %[[OUTER_LATCH]], label %[[INNER]] |
| ; CHECK: [[OUTER_LATCH]]: |
| ; CHECK-NEXT: [[J_NEXT]] = add i64 [[J]], 1 |
| ; CHECK-NEXT: [[OUTER_COND:%.*]] = icmp eq i64 [[J_NEXT]], [[N]] |
| ; CHECK-NEXT: br i1 [[OUTER_COND]], label %[[EXIT]], label %[[OUTER_HEADER]], !llvm.loop [[LOOP4:![0-9]+]] |
| ; CHECK: [[EXIT]]: |
| ; CHECK-NEXT: ret void |
| ; |
| entry: |
| br label %outer.header |
| |
| outer.header: |
| %j = phi i64 [ 0, %entry ], [ %j.next, %outer.latch ] |
| %cmp = icmp sgt i64 %j, 0 |
| call void @llvm.assume(i1 %cmp) |
| br label %inner |
| |
| inner: |
| %k = phi i64 [ 0, %outer.header ], [ %k.next, %inner ] |
| %idx = add i64 %j, %k |
| %ptr = getelementptr inbounds i32, ptr %arr, i64 %idx |
| store i32 1, ptr %ptr, align 4 |
| %k.next = add i64 %k, 1 |
| %inner.cond = icmp eq i64 %k.next, %n |
| br i1 %inner.cond, label %outer.latch, label %inner |
| |
| outer.latch: |
| %j.next = add i64 %j, 1 |
| %outer.cond = icmp eq i64 %j.next, %n |
| br i1 %outer.cond, label %exit, label %outer.header, !llvm.loop !0 |
| |
| exit: |
| ret void |
| } |
| |
| ; Check that llvm.assume with a noncanonical induction variable is replicated per lane. |
| define void @test_assume_non_canonical_iv(ptr %arr, i64 %n) { |
| ; CHECK-LABEL: define void @test_assume_non_canonical_iv( |
| ; CHECK-SAME: ptr [[ARR:%.*]], i64 [[N:%.*]]) { |
| ; CHECK-NEXT: [[ENTRY:.*]]: |
| ; CHECK-NEXT: [[MIN_ITERS_CHECK:%.*]] = icmp ult i64 [[N]], 2 |
| ; CHECK-NEXT: br i1 [[MIN_ITERS_CHECK]], label %[[SCALAR_PH:.*]], label %[[VECTOR_PH:.*]] |
| ; CHECK: [[VECTOR_PH]]: |
| ; CHECK-NEXT: [[N_MOD_VF:%.*]] = urem i64 [[N]], 2 |
| ; CHECK-NEXT: [[N_VEC:%.*]] = sub i64 [[N]], [[N_MOD_VF]] |
| ; CHECK-NEXT: [[TMP0:%.*]] = mul i64 [[N_VEC]], 3 |
| ; CHECK-NEXT: [[TMP1:%.*]] = add i64 10, [[TMP0]] |
| ; CHECK-NEXT: [[BROADCAST_SPLATINSERT:%.*]] = insertelement <2 x i64> poison, i64 [[N]], i64 0 |
| ; CHECK-NEXT: [[BROADCAST_SPLAT:%.*]] = shufflevector <2 x i64> [[BROADCAST_SPLATINSERT]], <2 x i64> poison, <2 x i32> zeroinitializer |
| ; CHECK-NEXT: br label %[[VECTOR_BODY:.*]] |
| ; CHECK: [[VECTOR_BODY]]: |
| ; CHECK-NEXT: [[INDEX:%.*]] = phi i64 [ 0, %[[VECTOR_PH]] ], [ [[INDEX_NEXT:%.*]], %[[VECTOR_LATCH:.*]] ] |
| ; CHECK-NEXT: [[VEC_IND:%.*]] = phi <2 x i64> [ <i64 10, i64 13>, %[[VECTOR_PH]] ], [ [[VEC_IND_NEXT:%.*]], %[[VECTOR_LATCH]] ] |
| ; CHECK-NEXT: [[TMP2:%.*]] = icmp sge <2 x i64> [[VEC_IND]], zeroinitializer |
| ; CHECK-NEXT: [[TMP3:%.*]] = extractelement <2 x i1> [[TMP2]], i64 0 |
| ; CHECK-NEXT: [[TMP4:%.*]] = extractelement <2 x i1> [[TMP2]], i64 1 |
| ; CHECK-NEXT: call void @llvm.assume(i1 [[TMP3]]) |
| ; CHECK-NEXT: call void @llvm.assume(i1 [[TMP4]]) |
| ; CHECK-NEXT: br label %[[INNER1:.*]] |
| ; CHECK: [[INNER1]]: |
| ; CHECK-NEXT: [[TMP5:%.*]] = phi <2 x i64> [ zeroinitializer, %[[VECTOR_BODY]] ], [ [[TMP10:%.*]], %[[INNER1]] ] |
| ; CHECK-NEXT: [[TMP6:%.*]] = add <2 x i64> [[VEC_IND]], [[TMP5]] |
| ; CHECK-NEXT: [[TMP7:%.*]] = getelementptr inbounds i32, ptr [[ARR]], <2 x i64> [[TMP6]] |
| ; CHECK-NEXT: [[WIDE_MASKED_GATHER:%.*]] = call <2 x i32> @llvm.masked.gather.v2i32.v2p0(<2 x ptr> align 4 [[TMP7]], <2 x i1> splat (i1 true), <2 x i32> poison) |
| ; CHECK-NEXT: [[TMP8:%.*]] = select <2 x i1> [[TMP2]], <2 x i32> splat (i32 1), <2 x i32> splat (i32 -1) |
| ; CHECK-NEXT: [[TMP9:%.*]] = add <2 x i32> [[WIDE_MASKED_GATHER]], [[TMP8]] |
| ; CHECK-NEXT: call void @llvm.masked.scatter.v2i32.v2p0(<2 x i32> [[TMP9]], <2 x ptr> align 4 [[TMP7]], <2 x i1> splat (i1 true)) |
| ; CHECK-NEXT: [[TMP10]] = add <2 x i64> [[TMP5]], splat (i64 1) |
| ; CHECK-NEXT: [[TMP11:%.*]] = icmp eq <2 x i64> [[TMP10]], [[BROADCAST_SPLAT]] |
| ; CHECK-NEXT: [[TMP12:%.*]] = extractelement <2 x i1> [[TMP11]], i64 0 |
| ; CHECK-NEXT: br i1 [[TMP12]], label %[[VECTOR_LATCH]], label %[[INNER1]] |
| ; CHECK: [[VECTOR_LATCH]]: |
| ; CHECK-NEXT: [[INDEX_NEXT]] = add nuw i64 [[INDEX]], 2 |
| ; CHECK-NEXT: [[VEC_IND_NEXT]] = add <2 x i64> [[VEC_IND]], splat (i64 6) |
| ; CHECK-NEXT: [[TMP13:%.*]] = icmp eq i64 [[INDEX_NEXT]], [[N_VEC]] |
| ; CHECK-NEXT: br i1 [[TMP13]], label %[[MIDDLE_BLOCK:.*]], label %[[VECTOR_BODY]], !llvm.loop [[LOOP5:![0-9]+]] |
| ; CHECK: [[MIDDLE_BLOCK]]: |
| ; CHECK-NEXT: [[CMP_N:%.*]] = icmp eq i64 [[N]], [[N_VEC]] |
| ; CHECK-NEXT: br i1 [[CMP_N]], label %[[EXIT:.*]], label %[[SCALAR_PH]] |
| ; CHECK: [[SCALAR_PH]]: |
| ; CHECK-NEXT: [[BC_RESUME_VAL:%.*]] = phi i64 [ [[N_VEC]], %[[MIDDLE_BLOCK]] ], [ 0, %[[ENTRY]] ] |
| ; CHECK-NEXT: [[BC_RESUME_VAL2:%.*]] = phi i64 [ [[TMP1]], %[[MIDDLE_BLOCK]] ], [ 10, %[[ENTRY]] ] |
| ; CHECK-NEXT: br label %[[OUTER_HEADER:.*]] |
| ; CHECK: [[OUTER_HEADER]]: |
| ; CHECK-NEXT: [[J:%.*]] = phi i64 [ [[BC_RESUME_VAL]], %[[SCALAR_PH]] ], [ [[J_NEXT:%.*]], %[[OUTER_LATCH:.*]] ] |
| ; CHECK-NEXT: [[M:%.*]] = phi i64 [ [[BC_RESUME_VAL2]], %[[SCALAR_PH]] ], [ [[M_NEXT:%.*]], %[[OUTER_LATCH]] ] |
| ; CHECK-NEXT: [[M_NEXT]] = add i64 [[M]], 3 |
| ; CHECK-NEXT: [[CMP:%.*]] = icmp sge i64 [[M]], 0 |
| ; CHECK-NEXT: call void @llvm.assume(i1 [[CMP]]) |
| ; CHECK-NEXT: br label %[[INNER:.*]] |
| ; CHECK: [[INNER]]: |
| ; CHECK-NEXT: [[K:%.*]] = phi i64 [ 0, %[[OUTER_HEADER]] ], [ [[K_NEXT:%.*]], %[[INNER]] ] |
| ; CHECK-NEXT: [[IDX:%.*]] = add i64 [[M]], [[K]] |
| ; CHECK-NEXT: [[PTR:%.*]] = getelementptr inbounds i32, ptr [[ARR]], i64 [[IDX]] |
| ; CHECK-NEXT: [[VAL:%.*]] = load i32, ptr [[PTR]], align 4 |
| ; CHECK-NEXT: [[INC:%.*]] = select i1 [[CMP]], i32 1, i32 -1 |
| ; CHECK-NEXT: [[VAL2:%.*]] = add i32 [[VAL]], [[INC]] |
| ; CHECK-NEXT: store i32 [[VAL2]], ptr [[PTR]], align 4 |
| ; CHECK-NEXT: [[K_NEXT]] = add i64 [[K]], 1 |
| ; CHECK-NEXT: [[INNER_COND:%.*]] = icmp eq i64 [[K_NEXT]], [[N]] |
| ; CHECK-NEXT: br i1 [[INNER_COND]], label %[[OUTER_LATCH]], label %[[INNER]] |
| ; CHECK: [[OUTER_LATCH]]: |
| ; CHECK-NEXT: [[J_NEXT]] = add i64 [[J]], 1 |
| ; CHECK-NEXT: [[OUTER_COND:%.*]] = icmp eq i64 [[J_NEXT]], [[N]] |
| ; CHECK-NEXT: br i1 [[OUTER_COND]], label %[[EXIT]], label %[[OUTER_HEADER]], !llvm.loop [[LOOP6:![0-9]+]] |
| ; CHECK: [[EXIT]]: |
| ; CHECK-NEXT: ret void |
| ; |
| entry: |
| br label %outer.header |
| |
| outer.header: |
| %j = phi i64 [ 0, %entry ], [ %j.next, %outer.latch ] |
| %m = phi i64 [ 10, %entry ], [ %m.next, %outer.latch ] |
| %m.next = add i64 %m, 3 |
| %cmp = icmp sge i64 %m, 0 |
| call void @llvm.assume(i1 %cmp) |
| br label %inner |
| |
| inner: |
| %k = phi i64 [ 0, %outer.header ], [ %k.next, %inner ] |
| %idx = add i64 %m, %k |
| %ptr = getelementptr inbounds i32, ptr %arr, i64 %idx |
| %val = load i32, ptr %ptr, align 4 |
| %inc = select i1 %cmp, i32 1, i32 -1 |
| %val2 = add i32 %val, %inc |
| store i32 %val2, ptr %ptr, align 4 |
| %k.next = add i64 %k, 1 |
| %inner.cond = icmp eq i64 %k.next, %n |
| br i1 %inner.cond, label %outer.latch, label %inner |
| |
| outer.latch: |
| %j.next = add i64 %j, 1 |
| %outer.cond = icmp eq i64 %j.next, %n |
| br i1 %outer.cond, label %exit, label %outer.header, !llvm.loop !0 |
| |
| exit: |
| ret void |
| } |
| |
| define void @test_lifetime(ptr %arr, i64 %n) { |
| ; CHECK-LABEL: define void @test_lifetime( |
| ; CHECK-SAME: ptr [[ARR:%.*]], i64 [[N:%.*]]) { |
| ; CHECK-NEXT: [[ENTRY:.*]]: |
| ; CHECK-NEXT: [[A:%.*]] = alloca i32, align 4 |
| ; CHECK-NEXT: [[MIN_ITERS_CHECK:%.*]] = icmp ult i64 [[N]], 2 |
| ; CHECK-NEXT: br i1 [[MIN_ITERS_CHECK]], label %[[SCALAR_PH:.*]], label %[[VECTOR_PH:.*]] |
| ; CHECK: [[VECTOR_PH]]: |
| ; CHECK-NEXT: [[N_MOD_VF:%.*]] = urem i64 [[N]], 2 |
| ; CHECK-NEXT: [[N_VEC:%.*]] = sub i64 [[N]], [[N_MOD_VF]] |
| ; CHECK-NEXT: [[BROADCAST_SPLATINSERT:%.*]] = insertelement <2 x i64> poison, i64 [[N]], i64 0 |
| ; CHECK-NEXT: [[BROADCAST_SPLAT:%.*]] = shufflevector <2 x i64> [[BROADCAST_SPLATINSERT]], <2 x i64> poison, <2 x i32> zeroinitializer |
| ; CHECK-NEXT: br label %[[VECTOR_BODY:.*]] |
| ; CHECK: [[VECTOR_BODY]]: |
| ; CHECK-NEXT: [[INDEX:%.*]] = phi i64 [ 0, %[[VECTOR_PH]] ], [ [[INDEX_NEXT:%.*]], %[[VECTOR_LATCH:.*]] ] |
| ; CHECK-NEXT: [[VEC_IND:%.*]] = phi <2 x i64> [ <i64 0, i64 1>, %[[VECTOR_PH]] ], [ [[VEC_IND_NEXT:%.*]], %[[VECTOR_LATCH]] ] |
| ; CHECK-NEXT: call void @llvm.lifetime.start.p0(ptr [[A]]) |
| ; CHECK-NEXT: br label %[[INNER1:.*]] |
| ; CHECK: [[INNER1]]: |
| ; CHECK-NEXT: [[TMP0:%.*]] = phi <2 x i64> [ zeroinitializer, %[[VECTOR_BODY]] ], [ [[TMP3:%.*]], %[[INNER1]] ] |
| ; CHECK-NEXT: [[TMP1:%.*]] = add <2 x i64> [[VEC_IND]], [[TMP0]] |
| ; CHECK-NEXT: [[TMP2:%.*]] = getelementptr inbounds i32, ptr [[ARR]], <2 x i64> [[TMP1]] |
| ; CHECK-NEXT: call void @llvm.masked.scatter.v2i32.v2p0(<2 x i32> splat (i32 1), <2 x ptr> align 4 [[TMP2]], <2 x i1> splat (i1 true)) |
| ; CHECK-NEXT: [[TMP3]] = add <2 x i64> [[TMP0]], splat (i64 1) |
| ; CHECK-NEXT: [[TMP4:%.*]] = icmp eq <2 x i64> [[TMP3]], [[BROADCAST_SPLAT]] |
| ; CHECK-NEXT: [[TMP5:%.*]] = extractelement <2 x i1> [[TMP4]], i64 0 |
| ; CHECK-NEXT: br i1 [[TMP5]], label %[[VECTOR_LATCH]], label %[[INNER1]] |
| ; CHECK: [[VECTOR_LATCH]]: |
| ; CHECK-NEXT: call void @llvm.lifetime.end.p0(ptr [[A]]) |
| ; CHECK-NEXT: [[INDEX_NEXT]] = add nuw i64 [[INDEX]], 2 |
| ; CHECK-NEXT: [[VEC_IND_NEXT]] = add <2 x i64> [[VEC_IND]], splat (i64 2) |
| ; CHECK-NEXT: [[TMP6:%.*]] = icmp eq i64 [[INDEX_NEXT]], [[N_VEC]] |
| ; CHECK-NEXT: br i1 [[TMP6]], label %[[MIDDLE_BLOCK:.*]], label %[[VECTOR_BODY]], !llvm.loop [[LOOP7:![0-9]+]] |
| ; CHECK: [[MIDDLE_BLOCK]]: |
| ; CHECK-NEXT: [[CMP_N:%.*]] = icmp eq i64 [[N]], [[N_VEC]] |
| ; CHECK-NEXT: br i1 [[CMP_N]], label %[[EXIT:.*]], label %[[SCALAR_PH]] |
| ; CHECK: [[SCALAR_PH]]: |
| ; CHECK-NEXT: [[BC_RESUME_VAL:%.*]] = phi i64 [ [[N_VEC]], %[[MIDDLE_BLOCK]] ], [ 0, %[[ENTRY]] ] |
| ; CHECK-NEXT: br label %[[OUTER_HEADER:.*]] |
| ; CHECK: [[OUTER_HEADER]]: |
| ; CHECK-NEXT: [[J:%.*]] = phi i64 [ [[BC_RESUME_VAL]], %[[SCALAR_PH]] ], [ [[J_NEXT:%.*]], %[[OUTER_LATCH:.*]] ] |
| ; CHECK-NEXT: call void @llvm.lifetime.start.p0(ptr [[A]]) |
| ; CHECK-NEXT: br label %[[INNER:.*]] |
| ; CHECK: [[INNER]]: |
| ; CHECK-NEXT: [[K:%.*]] = phi i64 [ 0, %[[OUTER_HEADER]] ], [ [[K_NEXT:%.*]], %[[INNER]] ] |
| ; CHECK-NEXT: [[IDX:%.*]] = add i64 [[J]], [[K]] |
| ; CHECK-NEXT: [[PTR:%.*]] = getelementptr inbounds i32, ptr [[ARR]], i64 [[IDX]] |
| ; CHECK-NEXT: store i32 1, ptr [[PTR]], align 4 |
| ; CHECK-NEXT: [[K_NEXT]] = add i64 [[K]], 1 |
| ; CHECK-NEXT: [[INNER_COND:%.*]] = icmp eq i64 [[K_NEXT]], [[N]] |
| ; CHECK-NEXT: br i1 [[INNER_COND]], label %[[OUTER_LATCH]], label %[[INNER]] |
| ; CHECK: [[OUTER_LATCH]]: |
| ; CHECK-NEXT: call void @llvm.lifetime.end.p0(ptr [[A]]) |
| ; CHECK-NEXT: [[J_NEXT]] = add i64 [[J]], 1 |
| ; CHECK-NEXT: [[OUTER_COND:%.*]] = icmp eq i64 [[J_NEXT]], [[N]] |
| ; CHECK-NEXT: br i1 [[OUTER_COND]], label %[[EXIT]], label %[[OUTER_HEADER]], !llvm.loop [[LOOP8:![0-9]+]] |
| ; CHECK: [[EXIT]]: |
| ; CHECK-NEXT: ret void |
| ; |
| entry: |
| %a = alloca i32 |
| br label %outer.header |
| |
| outer.header: |
| %j = phi i64 [ 0, %entry ], [ %j.next, %outer.latch ] |
| call void @llvm.lifetime.start.p0(i64 4, ptr %a) |
| br label %inner |
| |
| inner: |
| %k = phi i64 [ 0, %outer.header ], [ %k.next, %inner ] |
| %idx = add i64 %j, %k |
| %ptr = getelementptr inbounds i32, ptr %arr, i64 %idx |
| store i32 1, ptr %ptr, align 4 |
| %k.next = add i64 %k, 1 |
| %inner.cond = icmp eq i64 %k.next, %n |
| br i1 %inner.cond, label %outer.latch, label %inner |
| |
| outer.latch: |
| call void @llvm.lifetime.end.p0(i64 4, ptr %a) |
| %j.next = add i64 %j, 1 |
| %outer.cond = icmp eq i64 %j.next, %n |
| br i1 %outer.cond, label %exit, label %outer.header, !llvm.loop !0 |
| |
| exit: |
| ret void |
| } |
| |
| define void @test_sideeffect(ptr %arr, i64 %n) { |
| ; CHECK-LABEL: define void @test_sideeffect( |
| ; CHECK-SAME: ptr [[ARR:%.*]], i64 [[N:%.*]]) { |
| ; CHECK-NEXT: [[ENTRY:.*]]: |
| ; CHECK-NEXT: [[MIN_ITERS_CHECK:%.*]] = icmp ult i64 [[N]], 2 |
| ; CHECK-NEXT: br i1 [[MIN_ITERS_CHECK]], label %[[SCALAR_PH:.*]], label %[[VECTOR_PH:.*]] |
| ; CHECK: [[VECTOR_PH]]: |
| ; CHECK-NEXT: [[N_MOD_VF:%.*]] = urem i64 [[N]], 2 |
| ; CHECK-NEXT: [[N_VEC:%.*]] = sub i64 [[N]], [[N_MOD_VF]] |
| ; CHECK-NEXT: [[BROADCAST_SPLATINSERT:%.*]] = insertelement <2 x i64> poison, i64 [[N]], i64 0 |
| ; CHECK-NEXT: [[BROADCAST_SPLAT:%.*]] = shufflevector <2 x i64> [[BROADCAST_SPLATINSERT]], <2 x i64> poison, <2 x i32> zeroinitializer |
| ; CHECK-NEXT: br label %[[VECTOR_BODY:.*]] |
| ; CHECK: [[VECTOR_BODY]]: |
| ; CHECK-NEXT: [[INDEX:%.*]] = phi i64 [ 0, %[[VECTOR_PH]] ], [ [[INDEX_NEXT:%.*]], %[[VECTOR_LATCH:.*]] ] |
| ; CHECK-NEXT: [[VEC_IND:%.*]] = phi <2 x i64> [ <i64 0, i64 1>, %[[VECTOR_PH]] ], [ [[VEC_IND_NEXT:%.*]], %[[VECTOR_LATCH]] ] |
| ; CHECK-NEXT: call void @llvm.sideeffect() |
| ; CHECK-NEXT: br label %[[INNER1:.*]] |
| ; CHECK: [[INNER1]]: |
| ; CHECK-NEXT: [[TMP0:%.*]] = phi <2 x i64> [ zeroinitializer, %[[VECTOR_BODY]] ], [ [[TMP3:%.*]], %[[INNER1]] ] |
| ; CHECK-NEXT: [[TMP1:%.*]] = add <2 x i64> [[VEC_IND]], [[TMP0]] |
| ; CHECK-NEXT: [[TMP2:%.*]] = getelementptr inbounds i32, ptr [[ARR]], <2 x i64> [[TMP1]] |
| ; CHECK-NEXT: call void @llvm.masked.scatter.v2i32.v2p0(<2 x i32> splat (i32 1), <2 x ptr> align 4 [[TMP2]], <2 x i1> splat (i1 true)) |
| ; CHECK-NEXT: [[TMP3]] = add <2 x i64> [[TMP0]], splat (i64 1) |
| ; CHECK-NEXT: [[TMP4:%.*]] = icmp eq <2 x i64> [[TMP3]], [[BROADCAST_SPLAT]] |
| ; CHECK-NEXT: [[TMP5:%.*]] = extractelement <2 x i1> [[TMP4]], i64 0 |
| ; CHECK-NEXT: br i1 [[TMP5]], label %[[VECTOR_LATCH]], label %[[INNER1]] |
| ; CHECK: [[VECTOR_LATCH]]: |
| ; CHECK-NEXT: [[INDEX_NEXT]] = add nuw i64 [[INDEX]], 2 |
| ; CHECK-NEXT: [[VEC_IND_NEXT]] = add <2 x i64> [[VEC_IND]], splat (i64 2) |
| ; CHECK-NEXT: [[TMP6:%.*]] = icmp eq i64 [[INDEX_NEXT]], [[N_VEC]] |
| ; CHECK-NEXT: br i1 [[TMP6]], label %[[MIDDLE_BLOCK:.*]], label %[[VECTOR_BODY]], !llvm.loop [[LOOP9:![0-9]+]] |
| ; CHECK: [[MIDDLE_BLOCK]]: |
| ; CHECK-NEXT: [[CMP_N:%.*]] = icmp eq i64 [[N]], [[N_VEC]] |
| ; CHECK-NEXT: br i1 [[CMP_N]], label %[[EXIT:.*]], label %[[SCALAR_PH]] |
| ; CHECK: [[SCALAR_PH]]: |
| ; CHECK-NEXT: [[BC_RESUME_VAL:%.*]] = phi i64 [ [[N_VEC]], %[[MIDDLE_BLOCK]] ], [ 0, %[[ENTRY]] ] |
| ; CHECK-NEXT: br label %[[OUTER_HEADER:.*]] |
| ; CHECK: [[OUTER_HEADER]]: |
| ; CHECK-NEXT: [[J:%.*]] = phi i64 [ [[BC_RESUME_VAL]], %[[SCALAR_PH]] ], [ [[J_NEXT:%.*]], %[[OUTER_LATCH:.*]] ] |
| ; CHECK-NEXT: call void @llvm.sideeffect() |
| ; CHECK-NEXT: br label %[[INNER:.*]] |
| ; CHECK: [[INNER]]: |
| ; CHECK-NEXT: [[K:%.*]] = phi i64 [ 0, %[[OUTER_HEADER]] ], [ [[K_NEXT:%.*]], %[[INNER]] ] |
| ; CHECK-NEXT: [[IDX:%.*]] = add i64 [[J]], [[K]] |
| ; CHECK-NEXT: [[PTR:%.*]] = getelementptr inbounds i32, ptr [[ARR]], i64 [[IDX]] |
| ; CHECK-NEXT: store i32 1, ptr [[PTR]], align 4 |
| ; CHECK-NEXT: [[K_NEXT]] = add i64 [[K]], 1 |
| ; CHECK-NEXT: [[INNER_COND:%.*]] = icmp eq i64 [[K_NEXT]], [[N]] |
| ; CHECK-NEXT: br i1 [[INNER_COND]], label %[[OUTER_LATCH]], label %[[INNER]] |
| ; CHECK: [[OUTER_LATCH]]: |
| ; CHECK-NEXT: [[J_NEXT]] = add i64 [[J]], 1 |
| ; CHECK-NEXT: [[OUTER_COND:%.*]] = icmp eq i64 [[J_NEXT]], [[N]] |
| ; CHECK-NEXT: br i1 [[OUTER_COND]], label %[[EXIT]], label %[[OUTER_HEADER]], !llvm.loop [[LOOP10:![0-9]+]] |
| ; CHECK: [[EXIT]]: |
| ; CHECK-NEXT: ret void |
| ; |
| entry: |
| br label %outer.header |
| |
| outer.header: |
| %j = phi i64 [ 0, %entry ], [ %j.next, %outer.latch ] |
| call void @llvm.sideeffect() |
| br label %inner |
| |
| inner: |
| %k = phi i64 [ 0, %outer.header ], [ %k.next, %inner ] |
| %idx = add i64 %j, %k |
| %ptr = getelementptr inbounds i32, ptr %arr, i64 %idx |
| store i32 1, ptr %ptr, align 4 |
| %k.next = add i64 %k, 1 |
| %inner.cond = icmp eq i64 %k.next, %n |
| br i1 %inner.cond, label %outer.latch, label %inner |
| |
| outer.latch: |
| %j.next = add i64 %j, 1 |
| %outer.cond = icmp eq i64 %j.next, %n |
| br i1 %outer.cond, label %exit, label %outer.header, !llvm.loop !0 |
| |
| exit: |
| ret void |
| } |
| |
| ; Check that llvm.pseudoprobe is replicated once per lane for accurate sample trip count. |
| define void @test_pseudoprobe(ptr %arr, i64 %n) { |
| ; CHECK-LABEL: define void @test_pseudoprobe( |
| ; CHECK-SAME: ptr [[ARR:%.*]], i64 [[N:%.*]]) { |
| ; CHECK-NEXT: [[ENTRY:.*]]: |
| ; CHECK-NEXT: [[MIN_ITERS_CHECK:%.*]] = icmp ult i64 [[N]], 2 |
| ; CHECK-NEXT: br i1 [[MIN_ITERS_CHECK]], label %[[SCALAR_PH:.*]], label %[[VECTOR_PH:.*]] |
| ; CHECK: [[VECTOR_PH]]: |
| ; CHECK-NEXT: [[N_MOD_VF:%.*]] = urem i64 [[N]], 2 |
| ; CHECK-NEXT: [[N_VEC:%.*]] = sub i64 [[N]], [[N_MOD_VF]] |
| ; CHECK-NEXT: [[BROADCAST_SPLATINSERT:%.*]] = insertelement <2 x i64> poison, i64 [[N]], i64 0 |
| ; CHECK-NEXT: [[BROADCAST_SPLAT:%.*]] = shufflevector <2 x i64> [[BROADCAST_SPLATINSERT]], <2 x i64> poison, <2 x i32> zeroinitializer |
| ; CHECK-NEXT: br label %[[VECTOR_BODY:.*]] |
| ; CHECK: [[VECTOR_BODY]]: |
| ; CHECK-NEXT: [[INDEX:%.*]] = phi i64 [ 0, %[[VECTOR_PH]] ], [ [[INDEX_NEXT:%.*]], %[[VECTOR_LATCH:.*]] ] |
| ; CHECK-NEXT: [[VEC_IND:%.*]] = phi <2 x i64> [ <i64 0, i64 1>, %[[VECTOR_PH]] ], [ [[VEC_IND_NEXT:%.*]], %[[VECTOR_LATCH]] ] |
| ; CHECK-NEXT: call void @llvm.pseudoprobe(i64 6699318081062747564, i64 1, i32 0, i64 -1) |
| ; CHECK-NEXT: call void @llvm.pseudoprobe(i64 6699318081062747564, i64 1, i32 0, i64 -1) |
| ; CHECK-NEXT: br label %[[INNER1:.*]] |
| ; CHECK: [[INNER1]]: |
| ; CHECK-NEXT: [[TMP0:%.*]] = phi <2 x i64> [ zeroinitializer, %[[VECTOR_BODY]] ], [ [[TMP3:%.*]], %[[INNER1]] ] |
| ; CHECK-NEXT: [[TMP1:%.*]] = add <2 x i64> [[VEC_IND]], [[TMP0]] |
| ; CHECK-NEXT: [[TMP2:%.*]] = getelementptr inbounds i32, ptr [[ARR]], <2 x i64> [[TMP1]] |
| ; CHECK-NEXT: call void @llvm.masked.scatter.v2i32.v2p0(<2 x i32> splat (i32 1), <2 x ptr> align 4 [[TMP2]], <2 x i1> splat (i1 true)) |
| ; CHECK-NEXT: [[TMP3]] = add <2 x i64> [[TMP0]], splat (i64 1) |
| ; CHECK-NEXT: [[TMP4:%.*]] = icmp eq <2 x i64> [[TMP3]], [[BROADCAST_SPLAT]] |
| ; CHECK-NEXT: [[TMP5:%.*]] = extractelement <2 x i1> [[TMP4]], i64 0 |
| ; CHECK-NEXT: br i1 [[TMP5]], label %[[VECTOR_LATCH]], label %[[INNER1]] |
| ; CHECK: [[VECTOR_LATCH]]: |
| ; CHECK-NEXT: [[INDEX_NEXT]] = add nuw i64 [[INDEX]], 2 |
| ; CHECK-NEXT: [[VEC_IND_NEXT]] = add <2 x i64> [[VEC_IND]], splat (i64 2) |
| ; CHECK-NEXT: [[TMP6:%.*]] = icmp eq i64 [[INDEX_NEXT]], [[N_VEC]] |
| ; CHECK-NEXT: br i1 [[TMP6]], label %[[MIDDLE_BLOCK:.*]], label %[[VECTOR_BODY]], !llvm.loop [[LOOP11:![0-9]+]] |
| ; CHECK: [[MIDDLE_BLOCK]]: |
| ; CHECK-NEXT: [[CMP_N:%.*]] = icmp eq i64 [[N]], [[N_VEC]] |
| ; CHECK-NEXT: br i1 [[CMP_N]], label %[[EXIT:.*]], label %[[SCALAR_PH]] |
| ; CHECK: [[SCALAR_PH]]: |
| ; CHECK-NEXT: [[BC_RESUME_VAL:%.*]] = phi i64 [ [[N_VEC]], %[[MIDDLE_BLOCK]] ], [ 0, %[[ENTRY]] ] |
| ; CHECK-NEXT: br label %[[OUTER_HEADER:.*]] |
| ; CHECK: [[OUTER_HEADER]]: |
| ; CHECK-NEXT: [[J:%.*]] = phi i64 [ [[BC_RESUME_VAL]], %[[SCALAR_PH]] ], [ [[J_NEXT:%.*]], %[[OUTER_LATCH:.*]] ] |
| ; CHECK-NEXT: call void @llvm.pseudoprobe(i64 6699318081062747564, i64 1, i32 0, i64 -1) |
| ; CHECK-NEXT: br label %[[INNER:.*]] |
| ; CHECK: [[INNER]]: |
| ; CHECK-NEXT: [[K:%.*]] = phi i64 [ 0, %[[OUTER_HEADER]] ], [ [[K_NEXT:%.*]], %[[INNER]] ] |
| ; CHECK-NEXT: [[IDX:%.*]] = add i64 [[J]], [[K]] |
| ; CHECK-NEXT: [[PTR:%.*]] = getelementptr inbounds i32, ptr [[ARR]], i64 [[IDX]] |
| ; CHECK-NEXT: store i32 1, ptr [[PTR]], align 4 |
| ; CHECK-NEXT: [[K_NEXT]] = add i64 [[K]], 1 |
| ; CHECK-NEXT: [[INNER_COND:%.*]] = icmp eq i64 [[K_NEXT]], [[N]] |
| ; CHECK-NEXT: br i1 [[INNER_COND]], label %[[OUTER_LATCH]], label %[[INNER]] |
| ; CHECK: [[OUTER_LATCH]]: |
| ; CHECK-NEXT: [[J_NEXT]] = add i64 [[J]], 1 |
| ; CHECK-NEXT: [[OUTER_COND:%.*]] = icmp eq i64 [[J_NEXT]], [[N]] |
| ; CHECK-NEXT: br i1 [[OUTER_COND]], label %[[EXIT]], label %[[OUTER_HEADER]], !llvm.loop [[LOOP12:![0-9]+]] |
| ; CHECK: [[EXIT]]: |
| ; CHECK-NEXT: ret void |
| ; |
| entry: |
| br label %outer.header |
| |
| outer.header: |
| %j = phi i64 [ 0, %entry ], [ %j.next, %outer.latch ] |
| call void @llvm.pseudoprobe(i64 6699318081062747564, i64 1, i32 0, i64 -1) |
| br label %inner |
| |
| inner: |
| %k = phi i64 [ 0, %outer.header ], [ %k.next, %inner ] |
| %idx = add i64 %j, %k |
| %ptr = getelementptr inbounds i32, ptr %arr, i64 %idx |
| store i32 1, ptr %ptr, align 4 |
| %k.next = add i64 %k, 1 |
| %inner.cond = icmp eq i64 %k.next, %n |
| br i1 %inner.cond, label %outer.latch, label %inner |
| |
| outer.latch: |
| %j.next = add i64 %j, 1 |
| %outer.cond = icmp eq i64 %j.next, %n |
| br i1 %outer.cond, label %exit, label %outer.header, !llvm.loop !0 |
| |
| exit: |
| ret void |
| } |
| |
| |
| !0 = distinct !{!0, !1, !2} |
| !1 = !{!"llvm.loop.mustprogress"} |
| !2 = !{!"llvm.loop.vectorize.enable", i1 true} |
