On Tue, Sep 22, 2015 at 11:11:47AM -0500, Segher Boessenkool wrote: > > So, given that your solution seems to work, the patch is ok. > > Thanks! Here is what I will commit after bootstrap+test (the superfluous > assert removed, and the comment for the code quoted above tweaked a bit).
I added the following tiny patchlet for a paper bag problem revealed by testing on x86-64. Committed together with the rest. Segher --- gcc/shrink-wrap.c | 3 +++ 1 file changed, 3 insertions(+) diff --git a/gcc/shrink-wrap.c b/gcc/shrink-wrap.c index 94b1228..a99474d 100644 --- a/gcc/shrink-wrap.c +++ b/gcc/shrink-wrap.c @@ -822,6 +822,9 @@ try_shrink_wrapping (edge *entry_edge, bitmap_head *bb_with, den += e->src->frequency; } + if (den == 0) + den = 1; + /* All is okay, so do it. */ crtl->shrink_wrapped = true; -- 1.7.10.4