| ; NOTE: Assertions have been autogenerated by utils/update_test_checks.py |
| ; RUN: opt -basic-aa -loop-idiom < %s -S | FileCheck %s |
| |
| define void @f(i32* nocapture nonnull align 4 dereferenceable(20) %0, i32 %1) local_unnamed_addr #0 align 32 { |
| ; CHECK-LABEL: @f( |
| ; CHECK-NEXT: [[TMP3:%.*]] = trunc i32 [[TMP1:%.*]] to i2 |
| ; CHECK-NEXT: [[TMP4:%.*]] = zext i2 [[TMP3]] to i64 |
| ; CHECK-NEXT: [[SCEVGEP:%.*]] = getelementptr i32, i32* [[TMP0:%.*]], i64 [[TMP4]] |
| ; CHECK-NEXT: [[SCEVGEP1:%.*]] = bitcast i32* [[SCEVGEP]] to i8* |
| ; CHECK-NEXT: [[TMP5:%.*]] = sub i2 -1, [[TMP3]] |
| ; CHECK-NEXT: [[TMP6:%.*]] = zext i2 [[TMP5]] to i64 |
| ; CHECK-NEXT: [[TMP7:%.*]] = shl nuw nsw i64 [[TMP6]], 2 |
| ; CHECK-NEXT: [[TMP8:%.*]] = add nuw nsw i64 [[TMP7]], 4 |
| ; CHECK-NEXT: call void @llvm.memset.p0i8.i64(i8* align 4 [[SCEVGEP1]], i8 0, i64 [[TMP8]], i1 false) |
| ; CHECK-NEXT: br label [[TMP9:%.*]] |
| ; CHECK: 9: |
| ; CHECK-NEXT: [[TMP10:%.*]] = phi i32 [ [[TMP14:%.*]], [[TMP9]] ], [ [[TMP1]], [[TMP2:%.*]] ] |
| ; CHECK-NEXT: [[TMP11:%.*]] = and i32 [[TMP10]], 3 |
| ; CHECK-NEXT: [[TMP12:%.*]] = zext i32 [[TMP11]] to i64 |
| ; CHECK-NEXT: [[TMP13:%.*]] = getelementptr inbounds i32, i32* [[TMP0]], i64 [[TMP12]] |
| ; CHECK-NEXT: [[TMP14]] = add nsw i32 [[TMP10]], 1 |
| ; CHECK-NEXT: [[TMP15:%.*]] = and i32 [[TMP14]], 3 |
| ; CHECK-NEXT: [[TMP16:%.*]] = icmp eq i32 [[TMP15]], 0 |
| ; CHECK-NEXT: br i1 [[TMP16]], label [[TMP17:%.*]], label [[TMP9]] |
| ; CHECK: 17: |
| ; CHECK-NEXT: ret void |
| ; |
| br label %3 |
| |
| 3: ; preds = %3, %1 |
| %4 = phi i32 [ %8, %3 ], [ %1, %2 ] |
| %5 = and i32 %4, 3 |
| %6 = zext i32 %5 to i64 |
| %7 = getelementptr inbounds i32, i32* %0, i64 %6 |
| store i32 0, i32* %7, align 4 |
| %8 = add nsw i32 %4, 1 |
| %9 = and i32 %8, 3 |
| %10 = icmp eq i32 %9, 0 |
| br i1 %10, label %11, label %3 |
| |
| 11: ; preds = %4 |
| ret void |
| } |
