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implement some initial f32 support

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This commit is contained in:
Dennis Ranke
2021-10-27 20:03:23 +02:00
parent 7f5dd9aa80
commit 23d926dbb3
6 changed files with 146 additions and 27 deletions
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19
src/constfold.rs
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@@ -78,14 +78,31 @@ fn fold_expr(expr: &mut ast::Expression) {
};
expr.expr = ast::Expr::I32Const(result);
}
(&ast::Expr::F32Const(left), &ast::Expr::F32Const(right)) => {
use ast::Expr::*;
expr.expr = match op {
Add => F32Const(left + right),
Sub => F32Const(left - right),
Mul => F32Const(left * right),
Div => F32Const(left / right),
Rem | And | Or | Xor => return,
Eq => I32Const((left == right) as i32),
Ne => I32Const((left != right) as i32),
Lt => I32Const((left < right) as i32),
Le => I32Const((left <= right) as i32),
Gt => I32Const((left > right) as i32),
Ge => I32Const((left >= right) as i32),
};
}
_ => (),
}
}
ast::Expr::I32Const(_) | ast::Expr::Variable { .. } => (),
ast::Expr::I32Const(_) | ast::Expr::F32Const(_) | ast::Expr::Variable { .. } => (),
ast::Expr::LocalTee { ref mut value, .. } => fold_expr(value),
ast::Expr::Loop { ref mut block, .. } => fold_block(block),
ast::Expr::BranchIf {
ref mut condition, ..
} => fold_expr(condition),
ast::Expr::Cast { ref mut value, .. } => fold_expr(value),
}
}