tandem

An array processing DSL for generating straight-line SIMD instructions to embed in larger applications

Notes

• Vector language with binary/unary/postfix ops
• "Complete" language that is guaranteed to terminate
• No functions or control flow
• Generate object file and C header for embedding
• Runtime dispatch for choosing best available SIMD instructions
• RISC-V and x86-64 code generation

Operators

+ - * / %
& | ^ ~
<< >>
'

Grammar

comment ::= ? #.+$ ?
literal ::= ? [0-9_]+ ? | ? 0x[0-9A-z_]+ ? | ? 0b[0-1_]+ ?

type ::= ? [iuf]\d+ ?

prefix ::= ( '+' | '-' | "'" | '~' ) <expr>
infix ::= <expr> ( '+' | '-' | '*' | '/' | '%' | '&' | '|' | '^' ) ( <expr> | <literal> )

expr ::= <prefix> | <infix> | ( <type> '[' <literal>+ ']' )