| commit | 3635c2bf7c40a959ebd257d4724ebf487155a343 | |
| author | Wilco Dijkstra <wdijkstr@arm.com> | |
| Fri, 11 Oct 2019 14:23:28 +0000 (11 14:23 +0000) | ||
| committer | Wilco Dijkstra <wilco@gcc.gnu.org> | |
| Fri, 11 Oct 2019 14:23:28 +0000 (11 14:23 +0000) | ||
| tree | b30bede846a1de6079e2879a544db9c58525d945 | treesnapshot (tar.gz zip) |
| parent | bd01f4da3ecc88b25712e2d2a8f5c7ab3ed1b0e3 | commitdiff |
[ARM] Tweak HONOR_REG_ALLOC_ORDER
Setting HONOR_REG_ALLOC_ORDER improves codesize with -Os, however it generates
slower and larger code with -O2 and higher. So only set it when optimizing for
size. On Cortex-A57 this improves SPECINT2006 by 0.15% and SPECFP2006 by 0.25%
while reducing codesize.
gcc/
* config/arm/arm.h (HONOR_REG_ALLOC_ORDER): Set when optimizing for
size.
From-SVN: r276887
Setting HONOR_REG_ALLOC_ORDER improves codesize with -Os, however it generates
slower and larger code with -O2 and higher. So only set it when optimizing for
size. On Cortex-A57 this improves SPECINT2006 by 0.15% and SPECFP2006 by 0.25%
while reducing codesize.
gcc/
* config/arm/arm.h (HONOR_REG_ALLOC_ORDER): Set when optimizing for
size.
From-SVN: r276887
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| gcc/config/arm/arm.h | diffblobblamehistory |