| commit | ba9cc0714e58a9e8fa73cf6b0e205cbf1e6b71f2 | |
| author | Adhemerval Zanella <azanella@linux.vnet.ibm.com> | |
| Fri, 7 Mar 2014 12:09:47 +0000 (7 06:09 -0600) | ||
| committer | Adhemerval Zanella <azanella@linux.vnet.ibm.com> | |
| Mon, 10 Mar 2014 12:25:09 +0000 (10 07:25 -0500) | ||
| tree | f22f21e3972b49599186258fb2e748af8405a880 | treesnapshot (tar.gz zip) |
| parent | 8b4ff97413fc32ea7f817586bc682ff2cc34527b | commitdiff |
PowerPC: strncat optimization for PPC64
The optimization is achieved by following techniques:
1. Doubleword aligned memory access and compares using
cmpb instruction.
2. Loop unrolling for byte load/store.
3. CPU pre-fetch to avoid cache miss.
The optimization is achieved by following techniques:
1. Doubleword aligned memory access and compares using
cmpb instruction.
2. Loop unrolling for byte load/store.
3. CPU pre-fetch to avoid cache miss.
| ChangeLog | diffblobblamehistory | |
| sysdeps/powerpc/powerpc64/multiarch/Makefile | diffblobblamehistory | |
| sysdeps/powerpc/powerpc64/multiarch/ifunc-impl-list.c | diffblobblamehistory | |
| sysdeps/powerpc/powerpc64/multiarch/strncat-power7.S | [new file with mode: 0644] | blob |
| sysdeps/powerpc/powerpc64/multiarch/strncat-ppc64.c | [new file with mode: 0644] | blob |
| sysdeps/powerpc/powerpc64/multiarch/strncat.c | [new file with mode: 0644] | blob |
| sysdeps/powerpc/powerpc64/power7/strncat.S | [new file with mode: 0644] | blob |