[compiler] Allow more instruction kinds btw merged scopes #29881
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Updates our scope merging pass to allow more types of instructions to intervene btw scopes. This includes all the non-allocating kinds of nodes that are considered reorderable in #29863. It's already safe to merge scopes with these instructions — we only merge if the lvalue is not used past the next scope. Additionally, without changing this pass reordering isn't very effective, since we would reorder to add these types of intervening instructions and then not be able to merge scopes. Sequencing this first helps to see the win just from reordering alone. [ghstack-poisoned]
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This was referenced Jun 12, 2024
mvitousek
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Jun 13, 2024
josephsavona
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Jun 14, 2024
Updates our scope merging pass to allow more types of instructions to intervene btw scopes. This includes all the non-allocating kinds of nodes that are considered reorderable in #29863. It's already safe to merge scopes with these instructions — we only merge if the lvalue is not used past the next scope. Additionally, without changing this pass reordering isn't very effective, since we would reorder to add these types of intervening instructions and then not be able to merge scopes. Sequencing this first helps to see the win just from reordering alone. ghstack-source-id: 7926357 Pull Request resolved: #29881
This was referenced Jul 25, 2024
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Stack from ghstack (oldest at bottom):
Updates our scope merging pass to allow more types of instructions to intervene btw scopes. This includes all the non-allocating kinds of nodes that are considered reorderable in #29863. It's already safe to merge scopes with these instructions — we only merge if the lvalue is not used past the next scope. Additionally, without changing this pass reordering isn't very effective, since we would reorder to add these types of intervening instructions and then not be able to merge scopes.
Sequencing this first helps to see the win just from reordering alone.