diff options
Diffstat (limited to 'gcc/params.def')
| -rw-r--r-- | gcc/params.def | 9 |
1 files changed, 9 insertions, 0 deletions
diff --git a/gcc/params.def b/gcc/params.def index ea3015b3640..cc170e774dd 100644 --- a/gcc/params.def +++ b/gcc/params.def @@ -282,6 +282,15 @@ DEFPARAM(PARAM_MAX_COMPLETELY_PEELED_INSNS, "max-completely-peeled-insns", "The maximum number of insns of a completely peeled loop", 400, 0, 0) +/* Completely peeling a loop in couter-productive if that leads to + increased icache misses. Therefore, we want there to be an outer + loop of a size that fits into the icache which rolls sufficiently + to amortize the icache misses when the peeled loop is fetched. */ +/* The maximum number of insns in the outer loop of a peeled loop. */ +DEFPARAM(PARAM_MAX_COMPLETELY_PEELED_OUTER_INSNS, + "max-completely-peeled-outer-insns", + "The maximum number of insns of the outer loopp of a completely peeled loop", + 4000, 0, 0) /* The maximum number of peelings of a single loop that is peeled completely. */ DEFPARAM(PARAM_MAX_COMPLETELY_PEEL_TIMES, "max-completely-peel-times", |