diff options
Diffstat (limited to 'gcc/config/arm/arm.h')
| -rw-r--r-- | gcc/config/arm/arm.h | 14 |
1 files changed, 14 insertions, 0 deletions
diff --git a/gcc/config/arm/arm.h b/gcc/config/arm/arm.h index 276005c3da0..add8eced3ed 100644 --- a/gcc/config/arm/arm.h +++ b/gcc/config/arm/arm.h @@ -1152,6 +1152,20 @@ enum reg_class or could index an array. */ #define REGNO_REG_CLASS(REGNO) arm_regno_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, FPA_REGS, CIRRUS_REGS, VFP_REGS, IWMMXT_GR_REGS, IWMMXT_REGS,\ + LIM_REG_CLASSES \ +} + /* FPA registers can't do subreg as all values are reformatted to internal precision. In VFPv1, VFP registers could only be accessed in the mode they were set, so subregs would be invalid there too. However, we don't |