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r242177 - in /branches/ARM/sve-branch/gcc: emit...


Author: rsandifo
Date: Fri Nov 11 17:13:29 2016
New Revision: 242177

URL: https://gcc.gnu.org/viewcvs?rev=242177&root=gcc&view=rev
Log:
Add wider_subreg_mode helper functions

This patch adds helper functions that say which of the two modes
involved in a subreg is the larger, preferring the outer mode in
the event of a tie.  It also converts IRA and reload to track modes
instead of byte sizes, since this is slightly more convenient when
variable-sized modes are added later.  (It also keeps the memory
usage down.)

Modified:
    branches/ARM/sve-branch/gcc/emit-rtl.c
    branches/ARM/sve-branch/gcc/ira-color.c
    branches/ARM/sve-branch/gcc/ira.h
    branches/ARM/sve-branch/gcc/lra-constraints.c
    branches/ARM/sve-branch/gcc/lra-spills.c
    branches/ARM/sve-branch/gcc/lra.c
    branches/ARM/sve-branch/gcc/reload1.c
    branches/ARM/sve-branch/gcc/rtl.h


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