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[Bug middle-end/81818] aarch64 uses 2-3x memory and 2x time of arm at -Os, -O2, -O3
- From: "andrewm.roberts at sky dot com" <gcc-bugzilla at gcc dot gnu dot org>
- To: gcc-bugs at gcc dot gnu dot org
- Date: Wed, 16 Aug 2017 10:50:11 +0000
- Subject: [Bug middle-end/81818] aarch64 uses 2-3x memory and 2x time of arm at -Os, -O2, -O3
- Auto-submitted: auto-generated
- References: <bug-81818-4@http.gcc.gnu.org/bugzilla/>
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=81818
--- Comment #7 from Andrew Roberts <andrewm.roberts at sky dot com> ---
I'll try the memory testing on both arm and aarch64.
I've also tried -fopt-info-all-optall, I was hoping this would provide some
info on what was happening, but it only seems to give any output under -O3.