| ; NOTE: Assertions have been autogenerated by utils/update_test_checks.py |
| ; RUN: opt < %s -S -passes=loop-vectorize -mtriple=powerpc64-unknown-linux-gnu | FileCheck %s |
| |
| define void @foo(ptr %start, ptr %end) { |
| ; CHECK-LABEL: @foo( |
| ; CHECK-NEXT: entry: |
| ; CHECK-NEXT: [[START2:%.*]] = ptrtoint ptr [[START:%.*]] to i64 |
| ; CHECK-NEXT: [[END1:%.*]] = ptrtoint ptr [[END:%.*]] to i64 |
| ; CHECK-NEXT: [[TMP0:%.*]] = trunc i64 [[END1]] to i32 |
| ; CHECK-NEXT: [[TMP1:%.*]] = add i64 [[END1]], -1 |
| ; CHECK-NEXT: [[UMIN:%.*]] = call i64 @llvm.umin.i64(i64 [[START2]], i64 [[TMP1]]) |
| ; CHECK-NEXT: [[TMP2:%.*]] = trunc i64 [[UMIN]] to i32 |
| ; CHECK-NEXT: [[TMP3:%.*]] = sub i32 [[TMP0]], [[TMP2]] |
| ; CHECK-NEXT: [[MIN_ITERS_CHECK:%.*]] = icmp ult i32 [[TMP3]], 2 |
| ; CHECK-NEXT: br i1 [[MIN_ITERS_CHECK]], label [[SCALAR_PH:%.*]], label [[VECTOR_PH:%.*]] |
| ; CHECK: vector.ph: |
| ; CHECK-NEXT: [[N_MOD_VF:%.*]] = urem i32 [[TMP3]], 2 |
| ; CHECK-NEXT: [[N_VEC:%.*]] = sub i32 [[TMP3]], [[N_MOD_VF]] |
| ; CHECK-NEXT: [[IND_END:%.*]] = sub i32 0, [[N_VEC]] |
| ; CHECK-NEXT: br label [[VECTOR_BODY:%.*]] |
| ; CHECK: vector.body: |
| ; CHECK-NEXT: [[INDEX:%.*]] = phi i32 [ 0, [[VECTOR_PH]] ], [ [[INDEX_NEXT:%.*]], [[VECTOR_BODY]] ] |
| ; CHECK-NEXT: [[OFFSET_IDX:%.*]] = sub i32 0, [[INDEX]] |
| ; CHECK-NEXT: [[INDUCTION:%.*]] = add i32 [[OFFSET_IDX]], 0 |
| ; CHECK-NEXT: [[INDUCTION3:%.*]] = add i32 [[OFFSET_IDX]], -1 |
| ; CHECK-NEXT: [[TMP4:%.*]] = add nsw i32 -1, [[INDUCTION]] |
| ; CHECK-NEXT: [[TMP5:%.*]] = add nsw i32 -1, [[INDUCTION3]] |
| ; CHECK-NEXT: [[TMP6:%.*]] = getelementptr i8, ptr [[END]], i32 [[TMP4]] |
| ; CHECK-NEXT: [[TMP7:%.*]] = getelementptr i8, ptr [[END]], i32 [[TMP5]] |
| ; CHECK-NEXT: store i8 0, ptr [[TMP6]], align 1 |
| ; CHECK-NEXT: store i8 0, ptr [[TMP7]], align 1 |
| ; CHECK-NEXT: [[INDEX_NEXT]] = add nuw i32 [[INDEX]], 2 |
| ; CHECK-NEXT: [[TMP8:%.*]] = icmp eq i32 [[INDEX_NEXT]], [[N_VEC]] |
| ; CHECK-NEXT: br i1 [[TMP8]], label [[MIDDLE_BLOCK:%.*]], label [[VECTOR_BODY]], !llvm.loop [[LOOP0:![0-9]+]] |
| ; CHECK: middle.block: |
| ; CHECK-NEXT: [[CMP_N:%.*]] = icmp eq i32 [[TMP3]], [[N_VEC]] |
| ; CHECK-NEXT: br i1 [[CMP_N]], label [[WHILE_END_LOOPEXIT:%.*]], label [[SCALAR_PH]] |
| ; CHECK: scalar.ph: |
| ; CHECK-NEXT: [[BC_RESUME_VAL:%.*]] = phi i32 [ [[IND_END]], [[MIDDLE_BLOCK]] ], [ 0, [[ENTRY:%.*]] ] |
| ; CHECK-NEXT: br label [[WHILE_BODY:%.*]] |
| ; CHECK: while.body: |
| ; CHECK-NEXT: [[COUNT_09:%.*]] = phi i32 [ [[ADD:%.*]], [[WHILE_BODY]] ], [ [[BC_RESUME_VAL]], [[SCALAR_PH]] ] |
| ; CHECK-NEXT: [[ADD]] = add nsw i32 -1, [[COUNT_09]] |
| ; CHECK-NEXT: [[G:%.*]] = getelementptr i8, ptr [[END]], i32 [[ADD]] |
| ; CHECK-NEXT: store i8 0, ptr [[G]], align 1 |
| ; CHECK-NEXT: [[CMP:%.*]] = icmp ult ptr [[START]], [[G]] |
| ; CHECK-NEXT: br i1 [[CMP]], label [[WHILE_BODY]], label [[WHILE_END_LOOPEXIT]], !llvm.loop [[LOOP2:![0-9]+]] |
| ; CHECK: while.end.loopexit: |
| ; CHECK-NEXT: ret void |
| ; |
| entry: |
| br label %while.body |
| |
| while.body: ; preds = %while.body, %entry |
| %count.09 = phi i32 [ %add, %while.body ], [ 0, %entry ] |
| %add = add nsw i32 -1, %count.09 |
| %G = getelementptr i8, ptr %end, i32 %add |
| store i8 0, ptr %G |
| %cmp = icmp ult ptr %start, %G |
| br i1 %cmp, label %while.body, label %while.end.loopexit |
| |
| while.end.loopexit: ; preds = %while.body |
| ret void |
| } |
