| ; This test checks that we don't emit both |
| ; successful and unsuccessful message about vectorization. |
| |
| ; REQUIRES: asserts |
| ; RUN: opt -passes=loop-vectorize -debug -disable-output < %s 2>&1 | FileCheck %s |
| ; CHECK-NOT: LV: We can vectorize this loop |
| ; CHECK: LV: Not vectorizing: Cannot prove legality |
| ; CHECK-NOT: LV: We can vectorize this loop |
| |
| @a = global [32000 x i32] zeroinitializer, align 4 |
| |
| define void @foo(i32 %val1, i32 %val2) { |
| entry: |
| br label %for.body |
| |
| for.body: ; preds = %entry, %for.body |
| %0 = phi i32 [ %val1, %entry ], [ %add1, %for.body ] |
| %1 = phi i32 [ %val2, %entry ], [ %2, %for.body ] |
| %iv = phi i64 [ 1, %entry ], [ %iv.next, %for.body ] |
| %arrayidx = getelementptr inbounds [32000 x i32], ptr @a, i64 0, i64 %iv |
| %iv.next = add nuw nsw i64 %iv, 1 |
| %arrayidx2 = getelementptr inbounds [32000 x i32], ptr @a, i64 0, i64 %iv.next |
| %2 = load i32, ptr %arrayidx2, align 4 |
| %add0 = add nsw i32 %2, %1 |
| %add1 = add nsw i32 %add0, %0 |
| store i32 %add1, ptr %arrayidx, align 4 |
| %exitcond = icmp eq i64 %iv.next, 31999 |
| br i1 %exitcond, label %exit, label %for.body |
| |
| exit: ; preds = %for.body |
| ret void |
| } |