[Bug target/70359] [6 Regression] Code size increase for ARM compared to gcc-5.3.0

[jakub at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=70359

Jakub Jelinek <jakub at gcc dot gnu.org> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
                 CC|                            |jakub at gcc dot gnu.org,
                   |                            |kugan at gcc dot gnu.org,
                   |                            |segher at gcc dot gnu.org

--- Comment #5 from Jakub Jelinek <jakub at gcc dot gnu.org> ---
I see multiple points of the increases:
r224048 added 4 bytes.
r224995 added 8 bytes.
r228318 added 4 bytes.

Perhaps the middle one could change from
(if (single_use (@2)
     || (TREE_CODE (@1) == INTEGER_CST && TREE_CODE (@3) == INTEGER_CST))
to
(if (single_use (@2)
     || (!optimize_size && TREE_CODE (@1) == INTEGER_CST && TREE_CODE (@3) ==
INTEGER_CST))
(or some optimize*for_speed*)?
CCing authors of the other commits.  That said, complaining about size
regressions generally should be only if it (significantly) increases sizes of
some larger codebases (CSiBE, size of some large app, ...), when looking at a
single function only, there will be always improvements and degradations, the
compiler is changing.