A tiny PL/0 JIT compiler in less than 900 LOC with LLVM and PEG parser which handles 'Divide by Zero'.
Library dependencies:
- Parse and AST build: cpp-peglib
- Code Generation: LLVM 13.0.1
brew install llvm
export PATH="$PATH:/usr/local/opt/llvm/bin"
make> cat samples/square.pas
VAR x, squ;
PROCEDURE square;
BEGIN
squ := x * x
END;
BEGIN
x := 1;
WHILE x <= 10 DO
BEGIN
CALL square;
! squ;
x := x + 1
END
END.
> pl0 samples/square.pas
1
4
9
16
25
36
49
64
81
100> make bench
*** Python ***
real 0m8.367s
user 0m8.153s
sys 0m0.129s
*** Ruby ***
real 0m3.064s
user 0m2.916s
sys 0m0.097s
*** PL/0 ***
real 0m0.249s
user 0m0.234s
sys 0m0.008s
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