vm/intermediate_language.cc - Issue 10826299: Fix crash bug when replacing a definition with a definition that has no uses.

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Unified Diff: vm/intermediate_language.cc

Issue 10826299: Fix crash bug when replacing a definition with a definition that has no uses. (Closed) Base URL: http://dart.googlecode.com/svn/branches/bleeding_edge/dart/runtime/

Patch Set: Created 8 years, 4 months ago

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Index: vm/intermediate_language.cc

===================================================================

--- vm/intermediate_language.cc (revision 10621)

+++ vm/intermediate_language.cc (working copy)

@@ -312,8 +312,10 @@

}

current->definition_ = other;

- current->next_use_ = other->use_list();

- other->use_list()->previous_use_ = current;

+ if (other->use_list() != NULL) {

+ current->next_use_ = other->use_list();

+ other->use_list()->previous_use_ = current;

+ }

other->set_use_list(head);

}

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