patch to fix building Ada on ppc64 with LRA

[Vladimir Makarov <vmakarov at redhat dot com>]

The following patch fixes building Ada on ppc64 with LRA (elimination 
part changes which makes it behave as reload pass code).  The patch also 
fixes a failure on new test added for ppc recently.  This change is in 
very sensitive part of LRA and there is possibility that other targets 
can be affected but I think the probability of this is very small.

The patch was successfully bootstrapped and tested on x86/x86-64 and ppc64.

Committed as rev. 203147.

2013-10-02  Vladimir Makarov  <vmakarov@redhat.com>

        * lra-constraints.c (process_alt_operand): Calculate scratch_p and
        use it.  Use smaller increase for scratch.  Don't increase reject
        for early clobber scratch.
        * lra-eliminations.c (eliminate_regs_in_insn): Remove all insns
        setting eliminated regs except setting fp from hfp.
        (lra_eliminate): Check lra_insn_recog_data on NULL.

Attachment: ppc.patch
Description: Text document