Hello, On 12.03.2016 20:13, Jeff Law wrote:
As Andrey outlined in the PR, selective-scheduling was missing a check & handling of hard registers in modes that span more than one hard reg. This caused an incorrect register selection during renaming. I verified removing the printf call from the test would not compromise the test. Then I did a normal x86 bootstrap & regression test with the patch. Of course that's essentially useless, so I also did another bootstrap and regression test with -fselective-scheduling in BOOT_CFLAGS with and without this patch. In both cases there were no regressions. I'm installing Andrey's patch on the trunk. I'm not sure this is worth addressing in gcc-5.
I've looked at the patch again and as it fixes general code and has a regression marker I've included it in the bunch of other PRs that were backported to gcc-5. I forgot you were hesitant putting it to gcc-5 though :) So I can revert it from the branch if you want me to.
Andrey
Jeff
