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 6ebaa44f566..441e202fc5b 100644 --- a/gcc/config/bfin/bfin.h +++ b/gcc/config/bfin/bfin.h @@ -664,6 +664,19 @@ 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 this hook returns true for MODE, 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 |