This patch is missing testcases, which need to be added to the testsuite for any such new feature, and when submitting a patch you should say explicitly in what configuration it was bootstrapped and tested without regressions. Also, it's always incorrect to use -Wpedantic as the option controlling a warning that's not a warning about something not being part of the standard (since asm specifiers aren't part of the standard at all, it's thus wrong for -Wpedantic to control any diagnostic about them other than for them being used at all).
-- Joseph S. Myers jos...@codesourcery.com
