diff options
Diffstat (limited to 'gcc/config/sh/sh.h')
| -rw-r--r-- | gcc/config/sh/sh.h | 14 |
1 files changed, 14 insertions, 0 deletions
diff --git a/gcc/config/sh/sh.h b/gcc/config/sh/sh.h index 2305872903d..8af2f436169 100644 --- a/gcc/config/sh/sh.h +++ b/gcc/config/sh/sh.h @@ -1499,6 +1499,20 @@ enum reg_class extern enum reg_class regno_reg_class[FIRST_PSEUDO_REGISTER]; #define REGNO_REG_CLASS(REGNO) regno_reg_class[(REGNO)] +/* 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, FP_REGS, PR_REGS, T_REGS, MAC_REGS, TARGET_REGS, \ + 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. */ |