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rs6000: Correct Power8 cost of l2 cache size [PR97329]

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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.
This commit is contained in:
Xionghu Luo 2021-03-24 19:46:12 -05:00
parent 71fc4655ab
commit 08103e4d6a
1 changed files with 1 additions and 1 deletions

2
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 */
};