[TIR] [Bugfix] Pass the correct block_sref_reuse to Replace #14023
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A mismatch between the blocks present in the `result` vs the blocks passed in `block_sref_to_reuse` caused the bug mentioned in apache#13974. This patch tries to fix that bug by collecting only the blocks that are part of result and also present in the block replacement map `new_block_to_old_`. Since the scope block is `result`, only that block and its child blocks would be replaced, and any replaced block would be present in `rewriter.new_block_to_old_`. Thus, collecting the replaced blocks from among child blocks of `result` guarantees that the `block_sref_reuse` would contain all the replaced blocks and that they'll point to the correct block in `result` thus avoiding the missing SRef error.
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Hzfengsy
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Please add a regression test for it
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Yes, I realized that I did not add the test after creating the PR. I'll update with the test, thanks. |
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…4023) * [TIR] [Bugfix] Pass the correct block_sref_reuse to Replace A mismatch between the blocks present in the `result` vs the blocks passed in `block_sref_to_reuse` caused the bug mentioned in apache#13974. This patch tries to fix that bug by collecting only the blocks that are part of result and also present in the block replacement map `new_block_to_old_`. Since the scope block is `result`, only that block and its child blocks would be replaced, and any replaced block would be present in `rewriter.new_block_to_old_`. Thus, collecting the replaced blocks from among child blocks of `result` guarantees that the `block_sref_reuse` would contain all the replaced blocks and that they'll point to the correct block in `result` thus avoiding the missing SRef error.
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A mismatch between the blocks present in the
resultvs the blocks passed inblock_sref_to_reusecaused the bug mentioned in #13974.This patch tries to fix that bug by collecting only the blocks that are part of result and also present in the block replacement map
new_block_to_old_. Since the scope block isresult, only that block and its child blocks would be replaced, and any replaced block would be present inrewriter.new_block_to_old_. Thus, collecting the replaced blocks from among child blocks ofresultguarantees that theblock_sref_reusewould contain all the replaced blocks and that they'll point to the correct block inresultthus avoiding the missing SRef error.