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Add two new value types: iflags and fflags.

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These two value types represent the state of CPU flags after an integer
comparison and a floating point comparison respectively.

Instructions using these types TBD.
This commit is contained in:
Jakob Stoklund Olesen
2017-10-12 12:49:10 -07:00
parent dbaa919ca9
commit 15461c1e4b
8 changed files with 119 additions and 27 deletions
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14
lib/reader/src/lexer.rs
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@@ -303,7 +303,11 @@ impl<'a> Lexer<'a> {
Self::value_type(text, prefix, number)
})
})
.unwrap_or(Token::Identifier(text)),
.unwrap_or_else(|| match text {
"iflags" => Token::Type(types::IFLAGS),
"fflags" => Token::Type(types::FFLAGS),
_ => Token::Identifier(text),
}),
loc,
)
}
@@ -554,7 +558,8 @@ mod tests {
fn lex_identifiers() {
let mut lex = Lexer::new(
"v0 v00 vx01 ebb1234567890 ebb5234567890 v1x vx1 vxvx4 \
function0 function b1 i32x4 f32x5",
function0 function b1 i32x4 f32x5 \
iflags fflags iflagss",
);
assert_eq!(
lex.next(),
@@ -573,8 +578,11 @@ mod tests {
assert_eq!(lex.next(), token(Token::Identifier("function0"), 1));
assert_eq!(lex.next(), token(Token::Identifier("function"), 1));
assert_eq!(lex.next(), token(Token::Type(types::B1), 1));
assert_eq!(lex.next(), token(Token::Type(types::I32.by(4).unwrap()), 1));
assert_eq!(lex.next(), token(Token::Type(types::I32X4), 1));
assert_eq!(lex.next(), token(Token::Identifier("f32x5"), 1));
assert_eq!(lex.next(), token(Token::Type(types::IFLAGS), 1));
assert_eq!(lex.next(), token(Token::Type(types::FFLAGS), 1));
assert_eq!(lex.next(), token(Token::Identifier("iflagss"), 1));
assert_eq!(lex.next(), None);
}