On 02/24/2016 10:25 AM, Jakub Jelinek wrote:
That should be @option{-flifetime-dse=1} I think. Shouldn't -flifetime-dse=
be also in @opindex at the beginning of the paragraph, and documented what
the values mean (0 equivalent of -fno-lifetime-dse (or document it vice
versa) and 2 full lifetime d
On Wed, Feb 24, 2016 at 10:15:35AM -0500, Jason Merrill wrote:
> --- a/gcc/doc/invoke.texi
> +++ b/gcc/doc/invoke.texi
> @@ -6809,7 +6809,10 @@ value, and any changes during the lifetime of the
> object are dead when
> the object is destroyed. Normally dead store elimination will take
> advanta
Various projects have been having trouble with the new -flifetime-dse
clobber at the beginning of the constructor, so this patch allows them
to pass -flifetime-dse=1 to disable that clobber while still keeping the
one at the end of the destructor.
Tested x86_64-pc-linux-gnu, applying to trunk.
