The current ppc64 single step over atomic sequence testcase is written
in C and breaks with some versions of gcc. Convert the test to
assembly and use stepi to step through it.
gdb/testsuite/
2014-04-01 Anton Blanchard <anton@samba.org>
* gdb.arch/ppc64-atomic-inst.c: Remove.
* gdb.arch/ppc64-atomic-inst.S: New file.
* gdb.arch/ppc64-atomic-inst.exp: Adapt for asm based testcase.
