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Diffstat (limited to 'gcc/config/vax/vax.h')
| -rw-r--r-- | gcc/config/vax/vax.h | 9 |
1 files changed, 9 insertions, 0 deletions
diff --git a/gcc/config/vax/vax.h b/gcc/config/vax/vax.h index 15b7daa..272dfbb 100644 --- a/gcc/config/vax/vax.h +++ b/gcc/config/vax/vax.h @@ -226,6 +226,15 @@ enum reg_class { NO_REGS, ALL_REGS, LIM_REG_CLASSES }; #define REG_CLASS_NAMES \ { "NO_REGS", "ALL_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 { ALL_REGS, LIM_REG_CLASSES } + /* Return the maximum number of consecutive registers needed to represent mode MODE in a register of class CLASS. */ #define CLASS_MAX_NREGS(CLASS, MODE) \ |