Reviewers: Erik Corry, Description: Remove write-barriers for stores to new-space objects.
This change allows hydrogen instructions to keep track of instructions that dominate certain side-effects (GVN flags) in the hydrogen graph. We use the GVN pass to keep track of side-effects because accurate flags are already in place. It also adds a new side-effect (kChangesNewSpace) indicating whether an instruction can cause a GC and have objects be promoted to old-space. An object allocated in new-space is sure to stay on paths not having said side-effect. [email protected] TEST=mjsunit/compiler/inline-construct Please review this at https://chromiumcodereview.appspot.com/10031031/ SVN Base: https://v8.googlecode.com/svn/branches/bleeding_edge Affected files: M src/hydrogen-instructions.h M src/hydrogen-instructions.cc M src/hydrogen.h M src/hydrogen.cc -- v8-dev mailing list [email protected] http://groups.google.com/group/v8-dev
