On Sat, Aug 31, 2019 at 02:17:30PM -0500, Segher Boessenkool wrote:
> Hi all,
> 
> On Sat, Mar 23, 2019 at 11:46:12PM +0000, Segher Boessenkool wrote:
> > CSE does not consider calls, not even const calls.  This patch puts a
> > REG_EQUAL note on the pseudo we assign the __tls_get_addr result to,
> > so that those pseudos can be CSE'd and the extra calls deleted as dead
> > code.
> > 
> > CSE should really handle const calls directly, but it is stage 4.
> 
> I am backporting this to GCC 8.

Actually, that is not trivial at all, so I'm not doing that.


Segher

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