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Diffstat (limited to 'gcc/config/h8300/h8300.h')
| -rw-r--r-- | gcc/config/h8300/h8300.h | 13 |
1 files changed, 13 insertions, 0 deletions
diff --git a/gcc/config/h8300/h8300.h b/gcc/config/h8300/h8300.h index 793f1fa0be8..589b70f89a7 100644 --- a/gcc/config/h8300/h8300.h +++ b/gcc/config/h8300/h8300.h @@ -330,6 +330,19 @@ enum reg_class { { "NO_REGS", "COUNTER_REGS", "SOURCE_REGS", "DESTINATION_REGS", \ "GENERAL_REGS", "MAC_REGS", "ALL_REGS", "LIM_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, MAC_REGS, LIM_REG_CLASSES \ +} + /* Define which registers fit in which classes. This is an initializer for a vector of HARD_REG_SET of length N_REG_CLASSES. */ |