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Data Structures | |
| struct | fixed_value |
Macros | |
| #define | FIXED_VALUE_TYPE struct fixed_value |
| #define | MAX_FCONST0 |
| #define | MAX_FCONST1 |
| #define | FCONST0(mode) fconst0[mode - QQmode] |
| #define | FCONST1(mode) fconst1[mode - HAmode] |
| #define | CONST_FIXED_FROM_FIXED_VALUE(r, m) const_fixed_from_fixed_value (r, m) |
| #define | FIXED_VALUES_IDENTICAL(x, y) fixed_identical (&(x), &(y)) |
| #define | FIXED_VALUE_NEGATIVE(x) fixed_isneg (&(x)) |
Variables | |
| FIXED_VALUE_TYPE | fconst0 [MAX_FCONST0] |
| FIXED_VALUE_TYPE | fconst1 [MAX_FCONST1] |
Macro Definition Documentation
| #define CONST_FIXED_FROM_FIXED_VALUE | ( | r, | |
| m | |||
| ) | const_fixed_from_fixed_value (r, m) |
Return a CONST_FIXED with value R and mode M.
| #define FCONST0 | ( | mode | ) | fconst0[mode - QQmode] |
Macros to access fconst0 and fconst1 via machine modes.
Referenced by build_one_cst().
| #define FCONST1 | ( | mode | ) | fconst1[mode - HAmode] |
| #define FIXED_VALUE_NEGATIVE | ( | x | ) | fixed_isneg (&(x)) |
Determine whether a fixed-point value X is negative.
| #define FIXED_VALUE_TYPE struct fixed_value |
| #define FIXED_VALUES_IDENTICAL | ( | x, | |
| y | |||
| ) | fixed_identical (&(x), &(y)) |
Referenced by decode_addr_const().
| #define MAX_FCONST0 |
| #define MAX_FCONST1 |
Function Documentation
| tree build_fixed | ( | tree | , |
| FIXED_VALUE_TYPE | |||
| ) |
In tree.c: wrap up a FIXED_VALUE_TYPE in a tree node.
Referenced by build_one_cst(), build_string(), fold_convert_const_int_from_fixed(), and tree_unary_nonnegative_warnv_p().
|
inlinestatic |
Return a CONST_FIXED from a bit payload and machine mode MODE. The bits in PAYLOAD are sign-extended/zero-extended according to MODE.
| rtx const_fixed_from_fixed_value | ( | FIXED_VALUE_TYPE | , |
| enum | machine_mode | ||
| ) |
| bool fixed_arithmetic | ( | FIXED_VALUE_TYPE * | f, |
| int | icode, | ||
| const FIXED_VALUE_TYPE * | op0, | ||
| const FIXED_VALUE_TYPE * | op1, | ||
| bool | sat_p | ||
| ) |
Binary or unary arithmetic on tree_code.
Perform the binary or unary operation described by CODE. Note that OP0 and OP1 must have the same mode for binary operators. For a unary operation, leave OP1 NULL. Return true, if !SAT_P and overflow.
Referenced by tree_unary_nonnegative_warnv_p().
| bool fixed_compare | ( | int | icode, |
| const FIXED_VALUE_TYPE * | op0, | ||
| const FIXED_VALUE_TYPE * | op1 | ||
| ) |
Compare fixed-point values by tree_code.
Compare fixed-point values by tree_code. Note that OP0 and OP1 must have the same mode.
References fixed_saturate2(), GET_MODE_FBIT, double_int::llshift(), double_int::lshift(), double_int::sext(), and SIGNED_FIXED_POINT_MODE_P.
| bool fixed_convert | ( | FIXED_VALUE_TYPE * | f, |
| enum machine_mode | mode, | ||
| const FIXED_VALUE_TYPE * | a, | ||
| bool | sat_p | ||
| ) |
Extend or truncate to a new mode.
Extend or truncate to a new mode. If SAT_P, saturate the result to the max or the min. Return true, if !SAT_P and overflow.
Left shift a to temp_high, temp_low based on a->mode.
Logical shift right to temp_high.
Take care of the cases when converting between signed and
unsigned. Signed -> Unsigned.
Unsigned -> Signed.
Set to maximum.
Clear the sign.
Right shift a to temp based on a->mode.
Take care of the cases when converting between signed and
unsigned. Signed -> Unsigned.
Unsigned -> Signed.
Set to maximum.
Clear the sign.
Referenced by fold_convert_const_int_from_fixed().
| bool fixed_convert_from_int | ( | FIXED_VALUE_TYPE * | f, |
| enum machine_mode | mode, | ||
| double_int | a, | ||
| bool | unsigned_p, | ||
| bool | sat_p | ||
| ) |
Convert to a fixed-point mode from an integer.
Convert to a new fixed-point mode from an integer. If UNSIGNED_P, this integer is unsigned. If SAT_P, saturate the result to the max or the min. Return true, if !SAT_P and overflow.
Left shift a to temp_high, temp_low.
Logical shift right to temp_high.
Take care of the cases when converting between signed and unsigned.
Signed -> Unsigned.
Unsigned -> Signed.
Set to maximum.
Clear the sign.
References GET_MODE_FBIT, and GET_MODE_IBIT.
| bool fixed_convert_from_real | ( | FIXED_VALUE_TYPE * | f, |
| enum machine_mode | mode, | ||
| const REAL_VALUE_TYPE * | a, | ||
| bool | sat_p | ||
| ) |
Convert to a fixed-point mode from a real.
Convert to a new fixed-point mode from a real. If SAT_P, saturate the result to the max or the min. Return true, if !SAT_P and overflow.
| FIXED_VALUE_TYPE fixed_from_double_int | ( | double_int | , |
| enum | machine_mode | ||
| ) |
Construct a FIXED_VALUE from a bit payload and machine mode MODE. The bits in PAYLOAD are sign-extended/zero-extended according to MODE.
| void fixed_from_string | ( | FIXED_VALUE_TYPE * | , |
| const char * | , | ||
| enum | machine_mode | ||
| ) |
Initialize from a decimal or hexadecimal string.
| unsigned int fixed_hash | ( | const FIXED_VALUE_TYPE * | ) |
Calculate a hash value.
| bool fixed_identical | ( | const FIXED_VALUE_TYPE * | , |
| const FIXED_VALUE_TYPE * | |||
| ) |
Compare two fixed-point objects for bitwise identity.
| bool fixed_isneg | ( | const FIXED_VALUE_TYPE * | ) |
Determine whether a fixed-point value X is negative.
| void fixed_to_decimal | ( | char * | str, |
| const FIXED_VALUE_TYPE * | f_orig, | ||
| size_t | buf_size | ||
| ) |
Render F as a decimal floating point constant.
Referenced by dump_int(), and print_value().
| void real_convert_from_fixed | ( | REAL_VALUE_TYPE * | r, |
| enum machine_mode | mode, | ||
| const FIXED_VALUE_TYPE * | f | ||
| ) |
Convert to a real mode from a fixed-point.
Convert to a new real mode from a fixed-point.
Variable Documentation
| FIXED_VALUE_TYPE fconst0[MAX_FCONST0] |
Constant fixed-point values 0 and 1.
Record fixed-point constant 0 and 1.
| FIXED_VALUE_TYPE fconst1[MAX_FCONST1] |
