| ; NOTE: Assertions have been autogenerated by utils/update_test_checks.py |
| ; RUN: opt -passes=loop-vectorize -force-vector-width=2 -force-vector-interleave=1 -S %s | FileCheck %s |
| |
| |
| ; Test case where %gep has multiple uses of %iv. |
| define void @multiple_iv_uses_in_same_instruction([100 x [100 x i32]]* %ptr) { |
| ; CHECK-LABEL: @multiple_iv_uses_in_same_instruction( |
| ; CHECK-NEXT: entry: |
| ; CHECK-NEXT: br i1 false, label [[SCALAR_PH:%.*]], label [[VECTOR_PH:%.*]] |
| ; CHECK: vector.ph: |
| ; CHECK-NEXT: br label [[VECTOR_BODY:%.*]] |
| ; CHECK: vector.body: |
| ; CHECK-NEXT: [[INDEX:%.*]] = phi i64 [ 0, [[VECTOR_PH]] ], [ [[INDEX_NEXT:%.*]], [[VECTOR_BODY]] ] |
| ; CHECK-NEXT: [[TMP0:%.*]] = trunc i64 [[INDEX]] to i32 |
| ; CHECK-NEXT: [[TMP1:%.*]] = add i32 [[TMP0]], 0 |
| ; CHECK-NEXT: [[TMP2:%.*]] = add i32 [[TMP0]], 1 |
| ; CHECK-NEXT: [[TMP3:%.*]] = add i64 [[INDEX]], 0 |
| ; CHECK-NEXT: [[TMP4:%.*]] = add i64 [[INDEX]], 1 |
| ; CHECK-NEXT: [[TMP5:%.*]] = getelementptr inbounds [100 x [100 x i32]], [100 x [100 x i32]]* [[PTR:%.*]], i64 0, i64 [[TMP3]], i64 [[TMP3]] |
| ; CHECK-NEXT: [[TMP6:%.*]] = getelementptr inbounds [100 x [100 x i32]], [100 x [100 x i32]]* [[PTR]], i64 0, i64 [[TMP4]], i64 [[TMP4]] |
| ; CHECK-NEXT: store i32 [[TMP1]], i32* [[TMP5]], align 4 |
| ; CHECK-NEXT: store i32 [[TMP2]], i32* [[TMP6]], align 4 |
| ; CHECK-NEXT: [[INDEX_NEXT]] = add nuw i64 [[INDEX]], 2 |
| ; CHECK-NEXT: [[TMP7:%.*]] = icmp eq i64 [[INDEX_NEXT]], 100 |
| ; 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 100, 100 |
| ; CHECK-NEXT: br i1 [[CMP_N]], label [[EXIT:%.*]], label [[SCALAR_PH]] |
| ; CHECK: scalar.ph: |
| ; CHECK-NEXT: [[BC_RESUME_VAL:%.*]] = phi i64 [ 100, [[MIDDLE_BLOCK]] ], [ 0, [[ENTRY:%.*]] ] |
| ; CHECK-NEXT: br label [[LOOP:%.*]] |
| ; CHECK: loop: |
| ; CHECK-NEXT: [[IV:%.*]] = phi i64 [ [[BC_RESUME_VAL]], [[SCALAR_PH]] ], [ [[IV_NEXT:%.*]], [[LOOP]] ] |
| ; CHECK-NEXT: [[GEP:%.*]] = getelementptr inbounds [100 x [100 x i32]], [100 x [100 x i32]]* [[PTR]], i64 0, i64 [[IV]], i64 [[IV]] |
| ; CHECK-NEXT: [[T:%.*]] = trunc i64 [[IV]] to i32 |
| ; CHECK-NEXT: store i32 [[T]], i32* [[GEP]], align 4 |
| ; CHECK-NEXT: [[IV_NEXT]] = add nuw nsw i64 [[IV]], 1 |
| ; CHECK-NEXT: [[EXITCOND:%.*]] = icmp eq i64 [[IV_NEXT]], 100 |
| ; CHECK-NEXT: br i1 [[EXITCOND]], label [[EXIT]], label [[LOOP]], !llvm.loop [[LOOP2:![0-9]+]] |
| ; CHECK: exit: |
| ; CHECK-NEXT: ret void |
| ; |
| entry: |
| br label %loop |
| |
| loop: |
| %iv = phi i64 [ 0, %entry ], [ %iv.next, %loop ] |
| %gep = getelementptr inbounds [100 x [100 x i32]], [100 x [100 x i32]]* %ptr, i64 0, i64 %iv, i64 %iv |
| %t = trunc i64 %iv to i32 |
| store i32 %t, i32* %gep, align 4 |
| %iv.next = add nuw nsw i64 %iv, 1 |
| %exitcond = icmp eq i64 %iv.next, 100 |
| br i1 %exitcond, label %exit, label %loop |
| |
| exit: |
| ret void |
| } |