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[Patch, ARM] Add v7m specific extra rtx cost table


Hello,

This patch intends to add a specific extra rtx cost table for v7-m profile
targets. Tested with gcc regression test, no new regressions. Is it OK to
trunk?

BR,
Terry

2013-11-28  Terry Guo  <terry.guo@arm.com>

           * config/arm/aarch-cost-tables.h (v7m_extra_costs): New table.

Attachment: m4-extra-cost-table-upstream-v1.txt
Description: Text document


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