| ; NOTE: Assertions have been autogenerated by utils/update_test_checks.py |
| ; RUN: opt < %s -passes=loop-interchange -cache-line-size=64 -verify-dom-info -verify-loop-info -verify-scev -verify-loop-lcssa -S | FileCheck %s |
| ; RUN: opt < %s -aa-pipeline=basic-aa -passes=loop-interchange -cache-line-size=64 -verify-dom-info -verify-loop-info -verify-scev -verify-loop-lcssa -S | FileCheck %s |
| |
| target datalayout = "e-m:e-i64:64-f80:128-n8:16:32:64-S128" |
| |
| @A = common global [100 x [100 x i64]] zeroinitializer |
| @B = common global [100 x i64] zeroinitializer |
| |
| ;; for(int i=0;i<100;i++) |
| ;; for(int j=0;j<100;j++) |
| ;; A[j][i] = A[j][i]+k; |
| |
| define void @interchange_01(i64 %k, i64 %N) { |
| ; CHECK-LABEL: @interchange_01( |
| ; CHECK-NEXT: entry: |
| ; CHECK-NEXT: br label [[FOR2_PREHEADER:%.*]] |
| ; CHECK: for1.header.preheader: |
| ; CHECK-NEXT: br label [[FOR1_HEADER:%.*]] |
| ; CHECK: for1.header: |
| ; CHECK-NEXT: [[J23:%.*]] = phi i64 [ [[J_NEXT24:%.*]], [[FOR1_INC10:%.*]] ], [ 0, [[FOR1_HEADER_PREHEADER:%.*]] ] |
| ; CHECK-NEXT: br label [[FOR2_SPLIT1:%.*]] |
| ; CHECK: for2.preheader: |
| ; CHECK-NEXT: br label [[FOR2:%.*]] |
| ; CHECK: for2: |
| ; CHECK-NEXT: [[J:%.*]] = phi i64 [ [[TMP0:%.*]], [[FOR2_SPLIT:%.*]] ], [ 0, [[FOR2_PREHEADER]] ] |
| ; CHECK-NEXT: br label [[FOR1_HEADER_PREHEADER]] |
| ; CHECK: for2.split1: |
| ; CHECK-NEXT: [[ARRAYIDX5:%.*]] = getelementptr inbounds [100 x [100 x i64]], ptr @A, i64 0, i64 [[J]], i64 [[J23]] |
| ; CHECK-NEXT: [[LV:%.*]] = load i64, ptr [[ARRAYIDX5]] |
| ; CHECK-NEXT: [[ADD:%.*]] = add nsw i64 [[LV]], [[K:%.*]] |
| ; CHECK-NEXT: store i64 [[ADD]], ptr [[ARRAYIDX5]] |
| ; CHECK-NEXT: [[J_NEXT:%.*]] = add nuw nsw i64 [[J]], 1 |
| ; CHECK-NEXT: [[EXITCOND:%.*]] = icmp eq i64 [[J]], 99 |
| ; CHECK-NEXT: br label [[FOR1_INC10]] |
| ; CHECK: for2.split: |
| ; CHECK-NEXT: [[TMP0]] = add nuw nsw i64 [[J]], 1 |
| ; CHECK-NEXT: [[TMP1:%.*]] = icmp eq i64 [[J]], 99 |
| ; CHECK-NEXT: br i1 [[TMP1]], label [[FOR_END12:%.*]], label [[FOR2]] |
| ; CHECK: for1.inc10: |
| ; CHECK-NEXT: [[J_NEXT24]] = add nuw nsw i64 [[J23]], 1 |
| ; CHECK-NEXT: [[EXITCOND26:%.*]] = icmp eq i64 [[J23]], 99 |
| ; CHECK-NEXT: br i1 [[EXITCOND26]], label [[FOR2_SPLIT]], label [[FOR1_HEADER]] |
| ; CHECK: for.end12: |
| ; CHECK-NEXT: ret void |
| ; |
| entry: |
| br label %for1.header |
| |
| for1.header: |
| %j23 = phi i64 [ 0, %entry ], [ %j.next24, %for1.inc10 ] |
| br label %for2 |
| |
| for2: |
| %j = phi i64 [ %j.next, %for2 ], [ 0, %for1.header ] |
| %arrayidx5 = getelementptr inbounds [100 x [100 x i64]], ptr @A, i64 0, i64 %j, i64 %j23 |
| %lv = load i64, ptr %arrayidx5 |
| %add = add nsw i64 %lv, %k |
| store i64 %add, ptr %arrayidx5 |
| %j.next = add nuw nsw i64 %j, 1 |
| %exitcond = icmp eq i64 %j, 99 |
| br i1 %exitcond, label %for1.inc10, label %for2 |
| |
| for1.inc10: |
| %j.next24 = add nuw nsw i64 %j23, 1 |
| %exitcond26 = icmp eq i64 %j23, 99 |
| br i1 %exitcond26, label %for.end12, label %for1.header |
| |
| for.end12: |
| ret void |
| } |
| |
| ;; for(int i=0;i<100;i++) |
| ;; for(int j=100;j>=0;j--) |
| ;; A[j][i] = A[j][i]+k; |
| |
| define void @interchange_02(i64 %k) { |
| ; CHECK-LABEL: @interchange_02( |
| ; CHECK-NEXT: entry: |
| ; CHECK-NEXT: br label [[FOR3_PREHEADER:%.*]] |
| ; CHECK: for1.header.preheader: |
| ; CHECK-NEXT: br label [[FOR1_HEADER:%.*]] |
| ; CHECK: for1.header: |
| ; CHECK-NEXT: [[J19:%.*]] = phi i64 [ [[J_NEXT20:%.*]], [[FOR1_INC10:%.*]] ], [ 0, [[FOR1_HEADER_PREHEADER:%.*]] ] |
| ; CHECK-NEXT: br label [[FOR3_SPLIT1:%.*]] |
| ; CHECK: for3.preheader: |
| ; CHECK-NEXT: br label [[FOR3:%.*]] |
| ; CHECK: for3: |
| ; CHECK-NEXT: [[J:%.*]] = phi i64 [ [[TMP1:%.*]], [[FOR3_SPLIT:%.*]] ], [ 100, [[FOR3_PREHEADER]] ] |
| ; CHECK-NEXT: br label [[FOR1_HEADER_PREHEADER]] |
| ; CHECK: for3.split1: |
| ; CHECK-NEXT: [[ARRAYIDX5:%.*]] = getelementptr inbounds [100 x [100 x i64]], ptr @A, i64 0, i64 [[J]], i64 [[J19]] |
| ; CHECK-NEXT: [[TMP0:%.*]] = load i64, ptr [[ARRAYIDX5]] |
| ; CHECK-NEXT: [[ADD:%.*]] = add nsw i64 [[TMP0]], [[K:%.*]] |
| ; CHECK-NEXT: store i64 [[ADD]], ptr [[ARRAYIDX5]] |
| ; CHECK-NEXT: [[J_NEXT:%.*]] = add nsw i64 [[J]], -1 |
| ; CHECK-NEXT: [[CMP2:%.*]] = icmp sgt i64 [[J]], 0 |
| ; CHECK-NEXT: br label [[FOR1_INC10]] |
| ; CHECK: for3.split: |
| ; CHECK-NEXT: [[TMP1]] = add nsw i64 [[J]], -1 |
| ; CHECK-NEXT: [[TMP2:%.*]] = icmp sgt i64 [[J]], 0 |
| ; CHECK-NEXT: br i1 [[TMP2]], label [[FOR3]], label [[FOR_END11:%.*]] |
| ; CHECK: for1.inc10: |
| ; CHECK-NEXT: [[J_NEXT20]] = add nuw nsw i64 [[J19]], 1 |
| ; CHECK-NEXT: [[EXITCOND:%.*]] = icmp eq i64 [[J_NEXT20]], 100 |
| ; CHECK-NEXT: br i1 [[EXITCOND]], label [[FOR3_SPLIT]], label [[FOR1_HEADER]] |
| ; CHECK: for.end11: |
| ; CHECK-NEXT: ret void |
| ; |
| entry: |
| br label %for1.header |
| |
| for1.header: |
| %j19 = phi i64 [ 0, %entry ], [ %j.next20, %for1.inc10 ] |
| br label %for3 |
| |
| for3: |
| %j = phi i64 [ 100, %for1.header ], [ %j.next, %for3 ] |
| %arrayidx5 = getelementptr inbounds [100 x [100 x i64]], ptr @A, i64 0, i64 %j, i64 %j19 |
| %0 = load i64, ptr %arrayidx5 |
| %add = add nsw i64 %0, %k |
| store i64 %add, ptr %arrayidx5 |
| %j.next = add nsw i64 %j, -1 |
| %cmp2 = icmp sgt i64 %j, 0 |
| br i1 %cmp2, label %for3, label %for1.inc10 |
| |
| for1.inc10: |
| %j.next20 = add nuw nsw i64 %j19, 1 |
| %exitcond = icmp eq i64 %j.next20, 100 |
| br i1 %exitcond, label %for.end11, label %for1.header |
| |
| for.end11: |
| ret void |
| } |
| |
| ;; Test to make sure we can handle output dependencies. |
| ;; |
| ;; for (int i = 1; i < 100; ++i) |
| ;; for(int j = 1; j < 99; ++j) { |
| ;; A[j][i] = i; |
| ;; A[j][i+1] = j; |
| ;; } |
| ;; FIXME: DA misses this case after D35430 |
| |
| define void @interchange_10() { |
| ; CHECK-LABEL: @interchange_10( |
| ; CHECK-NEXT: entry: |
| ; CHECK-NEXT: br label [[FOR2_PREHEADER:%.*]] |
| ; CHECK: for1.header.preheader: |
| ; CHECK-NEXT: br label [[FOR1_HEADER:%.*]] |
| ; CHECK: for1.header: |
| ; CHECK-NEXT: [[J23:%.*]] = phi i64 [ [[J_NEXT24:%.*]], [[FOR1_INC10:%.*]] ], [ 1, [[FOR1_HEADER_PREHEADER:%.*]] ] |
| ; CHECK-NEXT: [[J_NEXT24]] = add nuw nsw i64 [[J23]], 1 |
| ; CHECK-NEXT: br label [[FOR2_SPLIT1:%.*]] |
| ; CHECK: for2.preheader: |
| ; CHECK-NEXT: br label [[FOR2:%.*]] |
| ; CHECK: for2: |
| ; CHECK-NEXT: [[J:%.*]] = phi i64 [ [[TMP0:%.*]], [[FOR2_SPLIT:%.*]] ], [ 1, [[FOR2_PREHEADER]] ] |
| ; CHECK-NEXT: br label [[FOR1_HEADER_PREHEADER]] |
| ; CHECK: for2.split1: |
| ; CHECK-NEXT: [[J_NEXT:%.*]] = add nuw nsw i64 [[J]], 1 |
| ; CHECK-NEXT: [[ARRAYIDX5:%.*]] = getelementptr inbounds [100 x [100 x i64]], ptr @A, i64 0, i64 [[J]], i64 [[J23]] |
| ; CHECK-NEXT: store i64 [[J]], ptr [[ARRAYIDX5]] |
| ; CHECK-NEXT: [[ARRAYIDX10:%.*]] = getelementptr inbounds [100 x [100 x i64]], ptr @A, i64 0, i64 [[J]], i64 [[J_NEXT24]] |
| ; CHECK-NEXT: store i64 [[J23]], ptr [[ARRAYIDX10]] |
| ; CHECK-NEXT: [[EXITCOND:%.*]] = icmp eq i64 [[J]], 99 |
| ; CHECK-NEXT: br label [[FOR1_INC10]] |
| ; CHECK: for2.split: |
| ; CHECK-NEXT: [[TMP0]] = add nuw nsw i64 [[J]], 1 |
| ; CHECK-NEXT: [[TMP1:%.*]] = icmp eq i64 [[J]], 99 |
| ; CHECK-NEXT: br i1 [[TMP1]], label [[FOR_END12:%.*]], label [[FOR2]] |
| ; CHECK: for1.inc10: |
| ; CHECK-NEXT: [[EXITCOND26:%.*]] = icmp eq i64 [[J23]], 98 |
| ; CHECK-NEXT: br i1 [[EXITCOND26]], label [[FOR2_SPLIT]], label [[FOR1_HEADER]] |
| ; CHECK: for.end12: |
| ; CHECK-NEXT: ret void |
| ; |
| entry: |
| br label %for1.header |
| |
| for1.header: |
| %j23 = phi i64 [ 1, %entry ], [ %j.next24, %for1.inc10 ] |
| %j.next24 = add nuw nsw i64 %j23, 1 |
| br label %for2 |
| |
| for2: |
| %j = phi i64 [ %j.next, %for2 ], [ 1, %for1.header ] |
| %j.next = add nuw nsw i64 %j, 1 |
| %arrayidx5 = getelementptr inbounds [100 x [100 x i64]], ptr @A, i64 0, i64 %j, i64 %j23 |
| store i64 %j, ptr %arrayidx5 |
| %arrayidx10 = getelementptr inbounds [100 x [100 x i64]], ptr @A, i64 0, i64 %j, i64 %j.next24 |
| store i64 %j23, ptr %arrayidx10 |
| %exitcond = icmp eq i64 %j, 99 |
| br i1 %exitcond, label %for1.inc10, label %for2 |
| |
| for1.inc10: |
| %exitcond26 = icmp eq i64 %j23, 98 |
| br i1 %exitcond26, label %for.end12, label %for1.header |
| |
| for.end12: |
| ret void |
| |
| } |