diff options
| author | Xionghu Luo <luoxhu@linux.ibm.com> | 2021-03-24 19:46:12 -0500 |
|---|---|---|
| committer | Xionghu Luo <luoxhu@linux.ibm.com> | 2021-03-24 19:51:43 -0500 |
| commit | 08103e4d6ada9b57366f2df2a2b745babfab914c (patch) | |
| tree | 572eda639d30ce86f08afe2eca0aab59e201b863 /gcc | |
| parent | 71fc4655ab86ab66b40165b2cb49c1395ca82a9a (diff) | |
| download | gcc-08103e4d6ada9b57366f2df2a2b745babfab914c.zip gcc-08103e4d6ada9b57366f2df2a2b745babfab914c.tar.gz gcc-08103e4d6ada9b57366f2df2a2b745babfab914c.tar.bz2 | |
rs6000: Correct Power8 cost of l2 cache size [PR97329]
l2 cache size for Power8 is 512kB, it was copied from Power7 before
public. Tested no performance change for SPEC2017.
gcc/ChangeLog:
2021-03-24 Xionghu Luo <luoxhu@linux.ibm.com>
* config/rs6000/rs6000.c (power8_costs): Change l2 cache
from 256 to 512.
Diffstat (limited to 'gcc')
| -rw-r--r-- | gcc/config/rs6000/rs6000.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/gcc/config/rs6000/rs6000.c b/gcc/config/rs6000/rs6000.c index 616dae3..34c4eda 100644 --- a/gcc/config/rs6000/rs6000.c +++ b/gcc/config/rs6000/rs6000.c @@ -1055,7 +1055,7 @@ struct processor_costs power8_cost = { COSTS_N_INSNS (17), /* ddiv */ 128, /* cache line size */ 32, /* l1 cache */ - 256, /* l2 cache */ + 512, /* l2 cache */ 12, /* prefetch streams */ COSTS_N_INSNS (3), /* SF->DF convert */ }; |