1; NOTE: Assertions have been autogenerated by utils/update_test_checks.py UTC_ARGS: --version 5 2; RUN: opt -p loop-vectorize -force-vector-width=4 -S %s | FileCheck %s 3 4target datalayout = "e-m:e-p:64:64-i64:64-i128:128-n32:64-S128" 5 6define i64 @exit_value_scalar_live_in(ptr %dst, i64 %in) { 7; CHECK-LABEL: define i64 @exit_value_scalar_live_in( 8; CHECK-SAME: ptr [[DST:%.*]], i64 [[IN:%.*]]) { 9; CHECK-NEXT: [[ENTRY:.*]]: 10; CHECK-NEXT: br i1 false, label %[[SCALAR_PH:.*]], label %[[VECTOR_PH:.*]] 11; CHECK: [[VECTOR_PH]]: 12; CHECK-NEXT: br label %[[VECTOR_BODY:.*]] 13; CHECK: [[VECTOR_BODY]]: 14; CHECK-NEXT: [[INDEX:%.*]] = phi i64 [ 0, %[[VECTOR_PH]] ], [ [[INDEX_NEXT:%.*]], %[[VECTOR_BODY]] ] 15; CHECK-NEXT: [[TMP0:%.*]] = add i64 [[INDEX]], 0 16; CHECK-NEXT: [[TMP1:%.*]] = getelementptr i16, ptr [[DST]], i64 [[TMP0]] 17; CHECK-NEXT: [[TMP2:%.*]] = getelementptr i16, ptr [[TMP1]], i32 0 18; CHECK-NEXT: store <4 x i16> zeroinitializer, ptr [[TMP2]], align 2 19; CHECK-NEXT: [[INDEX_NEXT]] = add nuw i64 [[INDEX]], 4 20; CHECK-NEXT: [[TMP3:%.*]] = icmp eq i64 [[INDEX_NEXT]], 1000 21; CHECK-NEXT: br i1 [[TMP3]], label %[[MIDDLE_BLOCK:.*]], label %[[VECTOR_BODY]], !llvm.loop [[LOOP0:![0-9]+]] 22; CHECK: [[MIDDLE_BLOCK]]: 23; CHECK-NEXT: br i1 false, label %[[EXIT:.*]], label %[[SCALAR_PH]] 24; CHECK: [[SCALAR_PH]]: 25; CHECK-NEXT: [[BC_RESUME_VAL:%.*]] = phi i64 [ 1000, %[[MIDDLE_BLOCK]] ], [ 0, %[[ENTRY]] ] 26; CHECK-NEXT: br label %[[LOOP:.*]] 27; CHECK: [[LOOP]]: 28; CHECK-NEXT: [[IV:%.*]] = phi i64 [ [[BC_RESUME_VAL]], %[[SCALAR_PH]] ], [ [[IV_NEXT_1:%.*]], %[[LOOP]] ] 29; CHECK-NEXT: [[GEP:%.*]] = getelementptr i16, ptr [[DST]], i64 [[IV]] 30; CHECK-NEXT: store i16 0, ptr [[GEP]], align 2 31; CHECK-NEXT: [[IV_NEXT_1]] = add i64 [[IV]], 1 32; CHECK-NEXT: [[EC:%.*]] = icmp ult i64 [[IV]], 1000 33; CHECK-NEXT: br i1 [[EC]], label %[[LOOP]], label %[[EXIT]], !llvm.loop [[LOOP3:![0-9]+]] 34; CHECK: [[EXIT]]: 35; CHECK-NEXT: [[RES:%.*]] = phi i64 [ [[IN]], %[[LOOP]] ], [ [[IN]], %[[MIDDLE_BLOCK]] ] 36; CHECK-NEXT: ret i64 [[RES]] 37; 38entry: 39 br label %loop 40 41loop: 42 %iv = phi i64 [ 0, %entry ], [ %iv.next.1, %loop ] 43 %gep = getelementptr i16, ptr %dst, i64 %iv 44 store i16 0, ptr %gep, align 2 45 %iv.next.1 = add i64 %iv, 1 46 %ec = icmp ult i64 %iv, 1000 47 br i1 %ec, label %loop, label %exit 48 49exit: 50 %res = phi i64 [ %in, %loop ] 51 ret i64 %res 52} 53 54define <2 x i64> @exit_value_vector_live_in(ptr %dst) { 55; CHECK-LABEL: define <2 x i64> @exit_value_vector_live_in( 56; CHECK-SAME: ptr [[DST:%.*]]) { 57; CHECK-NEXT: [[ENTRY:.*]]: 58; CHECK-NEXT: br i1 false, label %[[SCALAR_PH:.*]], label %[[VECTOR_PH:.*]] 59; CHECK: [[VECTOR_PH]]: 60; CHECK-NEXT: br label %[[VECTOR_BODY:.*]] 61; CHECK: [[VECTOR_BODY]]: 62; CHECK-NEXT: [[INDEX:%.*]] = phi i64 [ 0, %[[VECTOR_PH]] ], [ [[INDEX_NEXT:%.*]], %[[VECTOR_BODY]] ] 63; CHECK-NEXT: [[TMP0:%.*]] = add i64 [[INDEX]], 0 64; CHECK-NEXT: [[TMP1:%.*]] = getelementptr i16, ptr [[DST]], i64 [[TMP0]] 65; CHECK-NEXT: [[TMP2:%.*]] = getelementptr i16, ptr [[TMP1]], i32 0 66; CHECK-NEXT: store <4 x i16> zeroinitializer, ptr [[TMP2]], align 2 67; CHECK-NEXT: [[INDEX_NEXT]] = add nuw i64 [[INDEX]], 4 68; CHECK-NEXT: [[TMP3:%.*]] = icmp eq i64 [[INDEX_NEXT]], 1000 69; CHECK-NEXT: br i1 [[TMP3]], label %[[MIDDLE_BLOCK:.*]], label %[[VECTOR_BODY]], !llvm.loop [[LOOP4:![0-9]+]] 70; CHECK: [[MIDDLE_BLOCK]]: 71; CHECK-NEXT: br i1 false, label %[[EXIT:.*]], label %[[SCALAR_PH]] 72; CHECK: [[SCALAR_PH]]: 73; CHECK-NEXT: [[BC_RESUME_VAL:%.*]] = phi i64 [ 1000, %[[MIDDLE_BLOCK]] ], [ 0, %[[ENTRY]] ] 74; CHECK-NEXT: br label %[[LOOP:.*]] 75; CHECK: [[LOOP]]: 76; CHECK-NEXT: [[IV:%.*]] = phi i64 [ [[BC_RESUME_VAL]], %[[SCALAR_PH]] ], [ [[IV_NEXT_1:%.*]], %[[LOOP]] ] 77; CHECK-NEXT: [[GEP:%.*]] = getelementptr i16, ptr [[DST]], i64 [[IV]] 78; CHECK-NEXT: store i16 0, ptr [[GEP]], align 2 79; CHECK-NEXT: [[IV_NEXT_1]] = add i64 [[IV]], 1 80; CHECK-NEXT: [[EC:%.*]] = icmp ult i64 [[IV]], 1000 81; CHECK-NEXT: br i1 [[EC]], label %[[LOOP]], label %[[EXIT]], !llvm.loop [[LOOP5:![0-9]+]] 82; CHECK: [[EXIT]]: 83; CHECK-NEXT: [[RES:%.*]] = phi <2 x i64> [ zeroinitializer, %[[LOOP]] ], [ zeroinitializer, %[[MIDDLE_BLOCK]] ] 84; CHECK-NEXT: ret <2 x i64> [[RES]] 85; 86entry: 87 br label %loop 88 89loop: 90 %iv = phi i64 [ 0, %entry ], [ %iv.next.1, %loop ] 91 %gep = getelementptr i16, ptr %dst, i64 %iv 92 store i16 0, ptr %gep, align 2 93 %iv.next.1 = add i64 %iv, 1 94 %ec = icmp ult i64 %iv, 1000 95 br i1 %ec, label %loop, label %exit 96 97exit: 98 %res = phi <2 x i64> [ zeroinitializer, %loop ] 99 ret <2 x i64> %res 100} 101;. 102; CHECK: [[LOOP0]] = distinct !{[[LOOP0]], [[META1:![0-9]+]], [[META2:![0-9]+]]} 103; CHECK: [[META1]] = !{!"llvm.loop.isvectorized", i32 1} 104; CHECK: [[META2]] = !{!"llvm.loop.unroll.runtime.disable"} 105; CHECK: [[LOOP3]] = distinct !{[[LOOP3]], [[META2]], [[META1]]} 106; CHECK: [[LOOP4]] = distinct !{[[LOOP4]], [[META1]], [[META2]]} 107; CHECK: [[LOOP5]] = distinct !{[[LOOP5]], [[META2]], [[META1]]} 108;. 109