diff options
Diffstat (limited to 'gcc/rtl.h')
| -rw-r--r-- | gcc/rtl.h | 11 |
1 files changed, 5 insertions, 6 deletions
@@ -1010,14 +1010,13 @@ enum label_kind #define INTVAL(RTX) XCWINT(RTX, 0, CONST_INT) /* For a CONST_DOUBLE: - The usual two ints that hold the value. - For a DImode, that is all there are; - and CONST_DOUBLE_LOW is the low-order word and ..._HIGH the high-order. - For a float, the number of ints varies, - and CONST_DOUBLE_LOW is the one that should come first *in memory*. - So use &CONST_DOUBLE_LOW(r) as the address of an array of ints. */ + For a DImode, there are two integers CONST_DOUBLE_LOW is the + low-order word and ..._HIGH the high-order. + For a float, there is a REAL_VALUE_TYPE structure, and + CONST_DOUBLE_REAL_VALUE(r) is a pointer to it. */ #define CONST_DOUBLE_LOW(r) XCWINT (r, 0, CONST_DOUBLE) #define CONST_DOUBLE_HIGH(r) XCWINT (r, 1, CONST_DOUBLE) +#define CONST_DOUBLE_REAL_VALUE(r) ((struct real_value *)&CONST_DOUBLE_LOW(r)) /* For a CONST_VECTOR, return element #n. */ #define CONST_VECTOR_ELT(RTX, N) XCVECEXP (RTX, 0, N, CONST_VECTOR) |