diff options
Diffstat (limited to 'gcc/config/bfin/bfin.h')
| -rw-r--r-- | gcc/config/bfin/bfin.h | 13 |
1 files changed, 13 insertions, 0 deletions
diff --git a/gcc/config/bfin/bfin.h b/gcc/config/bfin/bfin.h index 6f2d16c98d6..826e60b9e02 100644 --- a/gcc/config/bfin/bfin.h +++ b/gcc/config/bfin/bfin.h @@ -711,6 +711,19 @@ enum reg_class : (REGNO) >= REG_RETS ? PROLOGUE_REGS \ : NO_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 \ +{ \ + MOST_REGS, AREGS, CCREGS, LIM_REG_CLASSES \ +} + /* When defined, the compiler allows registers explicitly used in the rtl to be used as spill registers but prevents the compiler from extending the lifetime of these registers. */ |