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//! Utility macros.
// Helper macro used to trigger const eval errors when the const generic immediate value `imm` is
// not a round number.
#[allow(unused)]
macro_rules! static_assert_rounding {
($imm:ident) => {
static_assert!(
$imm == 4 || $imm == 8 || $imm == 9 || $imm == 10 || $imm == 11,
"Invalid IMM value"
)
};
}
// Helper macro used to trigger const eval errors when the const generic immediate value `imm` is
// not a sae number.
#[allow(unused)]
macro_rules! static_assert_sae {
($imm:ident) => {
static_assert!($imm == 4 || $imm == 8, "Invalid IMM value")
};
}
// Helper macro used to trigger const eval errors when the const generic immediate value `imm` is
// not a mantissas sae number.
#[allow(unused)]
macro_rules! static_assert_mantissas_sae {
($imm:ident) => {
static_assert!($imm == 4 || $imm == 8 || $imm == 12, "Invalid IMM value")
};
}
// Helper macro used to trigger const eval errors when the const generic immediate value `SCALE` is
// not valid for gather instructions: the only valid scale values are 1, 2, 4 and 8.
#[allow(unused)]
macro_rules! static_assert_imm8_scale {
($imm:ident) => {
static_assert!(
$imm == 1 || $imm == 2 || $imm == 4 || $imm == 8,
"Invalid SCALE value"
)
};
}
#[cfg(test)]
macro_rules! assert_approx_eq {
($a:expr, $b:expr, $eps:expr) => {{
let (a, b) = (&$a, &$b);
assert!(
(*a - *b).abs() < $eps,
"assertion failed: `(left !== right)` \
(left: `{:?}`, right: `{:?}`, expect diff: `{:?}`, real diff: `{:?}`)",
*a,
*b,
$eps,
(*a - *b).abs()
);
}};
}