diff options
Diffstat (limited to 'gcc/config/rs6000/rs6000.h')
| -rw-r--r-- | gcc/config/rs6000/rs6000.h | 16 |
1 files changed, 16 insertions, 0 deletions
diff --git a/gcc/config/rs6000/rs6000.h b/gcc/config/rs6000/rs6000.h index 1f6d07b8c06..048d163ff14 100644 --- a/gcc/config/rs6000/rs6000.h +++ b/gcc/config/rs6000/rs6000.h @@ -1128,6 +1128,22 @@ enum reg_class { 0xffffffff, 0xffffffff, 0xffffffff, 0x0003ffff } /* 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 \ +{ \ + GENERAL_REGS, SPECIAL_REGS, FLOAT_REGS, ALTIVEC_REGS, \ + /*VRSAVE_REGS,*/ VSCR_REGS, SPE_ACC_REGS, SPEFSCR_REGS, \ + /* MQ_REGS, LINK_REGS, CTR_REGS, */ \ + CR_REGS, XER_REGS, LIM_REG_CLASSES \ +} + /* The same information, inverted: Return the class number of the smallest class containing reg number REGNO. This could be a conditional expression |