[Bug target/64479] [4.8 Regression][SH] wrong optimization delayed-branch

[oshima-ya@yagoto-urayama.jp]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=64479

--- Comment #4 from Yasushi Oshima <oshima-ya@yagoto-urayama.jp> ---
> Both patches fix the problem here, but I haven't tested them further.  My
> feeling is that the function reg_set_p should be fixed.

I tried to patch to reg_set_p(), then this problem is fixed.
And the native gcc48 for NetBSD/sh3 works well on the target environment now.