| commit | 296327d3f891053c7ab63065e48965fbf6b710f0 | |
| author | Claudiu Zissulescu <claziss@synopsys.com> | |
| Mon, 20 Jul 2015 14:12:32 +0000 (20 17:12 +0300) | ||
| committer | Waldemar Brodkorb <wbx@openadk.org> | |
| Wed, 22 Jul 2015 06:04:08 +0000 (22 08:04 +0200) | ||
| tree | 8ec8e3adf97a40eb15ac098c1c245be952f99009 | treesnapshot (tar.gz zip) |
| parent | c9bf93d68431692808acf3c2c527a6b2735fa254 | commitdiff |
ARCv2: update memset() so it could be used without double load/stores
Existing version of memset() relies on existence of 64-bit load/stores.
While ARC HS38 may not have those instructions implemented in SoC.
Proposed implementation checks if "-mno-ll64" option was passed to gcc
(for ARCv2 "-mll64" is set implicitly by default) by checking __LL64__
definition and if it is not defined uses 32-bit load/stores.
Signed-off-by: Claudiu Zissulescu <claziss@synopsys.com>
Signed-off-by: Alexey Brodkin <abrodkin@synopsys.com>
Cc: Vineet Gupta <vgupta@synopsys.com>
Existing version of memset() relies on existence of 64-bit load/stores.
While ARC HS38 may not have those instructions implemented in SoC.
Proposed implementation checks if "-mno-ll64" option was passed to gcc
(for ARCv2 "-mll64" is set implicitly by default) by checking __LL64__
definition and if it is not defined uses 32-bit load/stores.
Signed-off-by: Claudiu Zissulescu <claziss@synopsys.com>
Signed-off-by: Alexey Brodkin <abrodkin@synopsys.com>
Cc: Vineet Gupta <vgupta@synopsys.com>
| libc/string/arc/arcv2/memset.S | diffblobblamehistory |