https://gcc.gnu.org/bugzilla/show_bug.cgi?id=65076
--- Comment #53 from Jan Hubicka <hubicka at gcc dot gnu.org> ---
This patch makes denominator to use resulting function size (not uninlined time
like 4.9 did but getting the resulting fraction closer to 4.9 style):
Index: ../../gcc/ipa-inline.c
===================================================================
--- ../../gcc/ipa-inline.c (revision 221806)
+++ ../../gcc/ipa-inline.c (working copy)
@@ -1167,6 +1168,7 @@ edge_badness (struct cgraph_edge *edge,
overall_growth += 256 * 256 - 256;
denominator *= overall_growth;
}
+ denominator *= inline_summaries->get (caller)->self_size + growth;
badness = - numerator / denominator;
Large function growht is now hit only 8 times and compile time seems down to:
real 0m33.670s
user 0m33.065s
sys 0m0.522s
code size seems 8% bigger than 4.9, runtime is good.
The performance stays good with large-function-insns=10 and compile time
further drops to:
real 0m32.127s
user 0m31.634s
sys 0m0.520s
I will run firefox benchmarks tonight.
