tqchen commented on a change in pull request #5368: [TIR] Fix lower_warp_memory
when there are >1 warp buffers
URL: https://github.com/apache/incubator-tvm/pull/5368#discussion_r410718199
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File path: src/tir/transforms/lower_warp_memory.cc
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@@ -379,7 +379,7 @@ class WarpMemoryRewriter : private StmtMutator {
Stmt VisitStmt_(const AllocateNode* op) {
if (warp_buffer_.count(op->buffer_var.get())) {
WarpAccessRewriter rewriter(warp_size_, &analyzer_);
- return rewriter.Rewrite(op);
+ return StmtMutator::VisitStmt_(rewriter.Rewrite(op).as<AllocateNode>());
Review comment:
Let us consider Post order rewriting pattern instead
```c++
auto ret = StmtMutator::VisitStmt_(op);
op = ret.as<AllocateNode>();
if (warp_buffer_.count(op->buffer_var.get())) {
// rewrite transformations
}
return ret;
```
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