1546ab5a39
Autos must be kept if their address reaches the control value of a block. We didn't see this before because it is rare for an auto's address to reach a control value without also reaching a phi or being written to memory. We can probably optimize away the comparisons that lead to this scenario since autos cannot alias with pointers from elsewhere, however for now we take the conservative approach and just ensure the auto is properly initialised if its address reaches a control value. Fixes #26407. Change-Id: I02265793f010a9e001c3e1a5397c290c6769d4de Reviewed-on: https://go-review.googlesource.com/124335 Reviewed-by: David Chase <drchase@google.com> |
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