| ; RUN: opt -passes=loop-idiom -S <%s | FileCheck %s |
| |
| define void @memcpy_fixed_vec(ptr noalias %a, ptr noalias %b) local_unnamed_addr #1 { |
| ; CHECK-LABEL: @memcpy_fixed_vec( |
| ; CHECK: entry: |
| ; CHECK: memcpy |
| ; CHECK: vector.body |
| entry: |
| br label %vector.body |
| |
| vector.body: ; preds = %vector.body, %entry |
| %index = phi i64 [ 0, %entry ], [ %index.next, %vector.body ] |
| %0 = getelementptr inbounds i64, ptr %a, i64 %index |
| %wide.load = load <2 x i64>, ptr %0, align 8 |
| %1 = getelementptr inbounds i64, ptr %b, i64 %index |
| store <2 x i64> %wide.load, ptr %1, align 8 |
| %index.next = add nuw nsw i64 %index, 2 |
| %2 = icmp eq i64 %index.next, 1024 |
| br i1 %2, label %for.cond.cleanup, label %vector.body |
| |
| for.cond.cleanup: ; preds = %vector.body |
| ret void |
| } |
| |
| define void @memcpy_scalable_vec(ptr noalias %a, ptr noalias %b) local_unnamed_addr #1 { |
| ; CHECK-LABEL: @memcpy_scalable_vec( |
| ; CHECK: entry: |
| ; CHECK-NOT: memcpy |
| ; CHECK: vector.body |
| entry: |
| br label %vector.body |
| |
| vector.body: ; preds = %vector.body, %entry |
| %index = phi i64 [ 0, %entry ], [ %index.next, %vector.body ] |
| %0 = getelementptr inbounds <vscale x 2 x i64>, ptr %a, i64 %index |
| %wide.load = load <vscale x 2 x i64>, ptr %0, align 16 |
| %1 = getelementptr inbounds <vscale x 2 x i64>, ptr %b, i64 %index |
| store <vscale x 2 x i64> %wide.load, ptr %1, align 16 |
| %index.next = add nuw nsw i64 %index, 1 |
| %2 = icmp eq i64 %index.next, 1024 |
| br i1 %2, label %for.cond.cleanup, label %vector.body |
| |
| for.cond.cleanup: ; preds = %vector.body |
| ret void |
| } |