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| author | Paul Koning <ni1d@arrl.net> | 2010-10-22 15:53:48 -0400 |
|---|---|---|
| committer | Paul Koning <pkoning@gcc.gnu.org> | 2010-10-22 15:53:48 -0400 |
| commit | 4d1bc60a12eafe8aed38fff234a4f6ca16f78501 (patch) | |
| tree | d9e1822bd282718886ad97daede197ba5f2723fc /gcc | |
| parent | 834d5dce795dd36136ab744c65c7008bc3804583 (diff) | |
| download | gcc-4d1bc60a12eafe8aed38fff234a4f6ca16f78501.zip gcc-4d1bc60a12eafe8aed38fff234a4f6ca16f78501.tar.gz gcc-4d1bc60a12eafe8aed38fff234a4f6ca16f78501.tar.bz2 | |
* config/pdp11/pdp11.h (IRA_COVER_CLASSES): Define.
From-SVN: r165858
Diffstat (limited to 'gcc')
| -rw-r--r-- | gcc/ChangeLog | 4 | ||||
| -rw-r--r-- | gcc/config/pdp11/pdp11.h | 10 |
2 files changed, 14 insertions, 0 deletions
diff --git a/gcc/ChangeLog b/gcc/ChangeLog index 54939bc..d4114d3 100644 --- a/gcc/ChangeLog +++ b/gcc/ChangeLog @@ -1,3 +1,7 @@ +2010-10-22 Paul Koning <ni1d@arrl.net> + + * config/pdp11/pdp11.h (IRA_COVER_CLASSES): Define. + 2010-10-22 Richard Henderson <rth@redhat.com> * config/i386/i386.c (ix86_builtin_vectorized_function): Add diff --git a/gcc/config/pdp11/pdp11.h b/gcc/config/pdp11/pdp11.h index 7a26eb0..81180eb 100644 --- a/gcc/config/pdp11/pdp11.h +++ b/gcc/config/pdp11/pdp11.h @@ -320,6 +320,16 @@ enum reg_class { NO_REGS, MUL_REGS, GENERAL_REGS, LOAD_FPU_REGS, NO_LOAD_FPU_REG #define INDEX_REG_CLASS GENERAL_REGS #define BASE_REG_CLASS GENERAL_REGS +/* The following macro defines cover classes for Integrated Register + Allocator. Cover classes is a set of non-intersected register + classes covering all hard registers used for register allocation + purpose. Any move between two registers of a cover class should be + cheaper than load or store of the registers. The macro value is + array of register classes with LIM_REG_CLASSES used as the end + marker. */ + +#define IRA_COVER_CLASSES { GENERAL_REGS, FPU_REGS, LIM_REG_CLASSES } + /* Given an rtx X being reloaded into a reg required to be in class CLASS, return the class of reg to actually use. In general this is just CLASS; but on some machines |