[compiler] Don't copy blocks in EnsureCFGWellFormedness
This is no longer necessary, because `EnsureSplitEdgeForm` no longer adds new blocks. Change-Id: I48daaa556ff1be5c9641b054937699ac401613f9 Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/3810464 Reviewed-by: Tobias Tebbi <tebbi@chromium.org> Commit-Queue: Georgia Kouveli <georgia.kouveli@arm.com> Cr-Commit-Position: refs/heads/main@{#82305}
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@ -332,12 +332,8 @@ void Schedule::InsertSwitch(BasicBlock* block, BasicBlock* end, Node* sw,
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}
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void Schedule::EnsureCFGWellFormedness() {
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// Make a copy of all the blocks for the iteration, since adding the split
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// edges will allocate new blocks.
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BasicBlockVector all_blocks_copy(all_blocks_);
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// Insert missing split edge blocks.
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for (BasicBlock* block : all_blocks_copy) {
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// Ensure there are no critical edges.
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for (BasicBlock* block : all_blocks_) {
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if (block->PredecessorCount() > 1) {
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if (block != end_) {
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EnsureSplitEdgeForm(block);
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