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* doc/invoke.texi: Adjust -flifetime-dse documentation.

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From-SVN: r233680
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Jason Merrill 2016-02-24 14:55:57 -05:00
parent 3b96b93aec
commit 4e7bcf32fe
1 changed files with 3 additions and 1 deletions
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gcc/doc/invoke.texi
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@ -6812,7 +6812,9 @@ storage persisting beyond the lifetime of the object, you can use this
flag to disable this optimization. To preserve stores before the
constructor starts (e.g. because your operator new clears the object
storage) but still treat the object as dead after the destructor you,
can use -flifetime-dse=1.
can use @option{-flifetime-dse=1}. The default behavior can be
explicitly selected with @option{-flifetime-dse=2}.
@option{-flifetime-dse=0} is equivalent to @option{-fno-lifetime-dse}.
@item -flive-range-shrinkage
@opindex flive-range-shrinkage