http://gcc.gnu.org/bugzilla/show_bug.cgi?id=57134
--- Comment #3 from Anton Blanchard <anton at samba dot org> --- Created attachment 30607 --> http://gcc.gnu.org/bugzilla/attachment.cgi?id=30607&action=edit Compilation failure with -mstrict-align on ppc64 The original testcase isn't failing, but this test fails to compile with -mstrict-align: /tmp/testcase.c: In function 'testcase': /tmp/testcase.c:12:2: error: output number 0 not directly addressable asm volatile("# %0": "+m" (b->zot)); ^ and passes without -mstrict-align.