[Bug rtl-optimization/59086] [4.9 Regression] error: ‘asm’ operand has impossible constraints

[vmakarov at gcc dot gnu.org]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=59086

Vladimir Makarov <vmakarov at gcc dot gnu.org> changed:

           What    |Removed                     |Added
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                 CC|                            |vmakarov at gcc dot gnu.org

--- Comment #2 from Vladimir Makarov <vmakarov at gcc dot gnu.org> ---
There are not enough regs for the asm as frame pointer can not be used after
x86 tuning changes.  The root of the problem is an absence some functionality
in LRA preventing frame pointer elimination in presence of explicit sp changes.
 It also hurts performance for new tuning (there are PRs of this too).  I've
started to work on this problem.  I hope it will be solved in 2 weeks.