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316 Commits

Author SHA1 Message Date
Rui Ueyama cb81a379d9 Use 32 bit registers for char, short and int 2020-12-07 12:00:05 +09:00
Rui Ueyama 67543ea113 Make sizeof to accept not only an expression but also a typename 
Previously, chibicc's sizeof accepted only an expression, so you
couldn't write something like `sizeof(int)`. Now it accepts that.
 2020-12-07 11:59:59 +09:00
Rui Ueyama a6b82da1ae Add typedef 
In the following example, `x` is defined as an alias for `int`.

  typedef x;

Below is valid C code where the second `t` is a local variable
of type int having value 3.

  typedef int t;
  t t = 3;
 2020-12-07 11:51:20 +09:00
Rui Ueyama f46370ef98 Add `long long` as an alias for `long` 2020-12-07 11:51:20 +09:00
Rui Ueyama 287906abb8 Handle complex type declarations correctly 
chibicc can now read complex type declarations such as below.

  long x;
  long int x;
  int long x;
  short x;
  short int x;
  int short x;
  long long x;
  long long int x;
 2020-12-07 11:51:20 +09:00
Rui Ueyama 8c3503bb94 Add void type 2020-12-07 11:51:20 +09:00
Rui Ueyama 74e3acc296 Add function declaration 2020-12-07 11:51:20 +09:00
Rui Ueyama a817b23da3 Add nested type declarators 2020-12-07 11:51:18 +09:00
Rui Ueyama 9d48eef58b Add short type 2020-10-15 14:22:16 +09:00
Rui Ueyama 43c2f0829f Add long type 2020-10-15 14:22:16 +09:00
Rui Ueyama 5831edaab3 Change size of int from 8 to 4 2020-10-15 14:22:16 +09:00
Rui Ueyama bef05432c9 Add struct assignment 2020-10-15 14:22:16 +09:00
Rui Ueyama 11e3841832 Add union 2020-10-15 14:22:16 +09:00
Rui Ueyama f0a018a7d6 Add -> operator 2020-10-15 14:22:16 +09:00
Rui Ueyama e1e831ea3e Support struct tags 2020-10-15 14:22:16 +09:00
Rui Ueyama dfec1157b4 Align local variables 2020-10-15 14:22:16 +09:00
Rui Ueyama 9443e4b8bc Align struct members 2020-10-15 14:22:16 +09:00
Rui Ueyama f814033d04 Add struct 2020-10-15 14:22:16 +09:00
Rui Ueyama e6307ad374 Add comma operator 
This patch allows writing a comma expression on the left-hand side
of an assignment expression. This is called the "generalized lvalue"
which is a deprecated GCC language extension. I'm implementing it
anyway because it's useful to implement other features.
 2020-10-15 14:22:16 +09:00
Rui Ueyama 1c91d1943a Emit .file and .loc assembler directives 
With these directives, gdb can print out an error location when
a compiled program crashes.
 2020-10-15 14:22:16 +09:00
Rui Ueyama 6647ad9b84 Precompute line number for each token 
No functionality change
 2020-10-15 14:22:16 +09:00
Rui Ueyama cd832a311e Rewrite tests in shell script in C 2020-10-15 14:22:15 +09:00
Rui Ueyama ca8b2434c9 Handle block scope 2020-10-08 16:23:53 +09:00
Rui Ueyama 6c0a42926a Add line and block comments 2020-10-08 16:23:53 +09:00
Rui Ueyama a0388bada4 Add -o and --help options 2020-10-08 16:23:53 +09:00
Rui Ueyama 7b8528f71c Refactor -- no functionality change 2020-10-08 16:23:53 +09:00
Rui Ueyama d9ea59757e Read code from a file instead of argv[1] 2020-10-08 16:23:49 +09:00
Rui Ueyama 9dae23461e [GNU] Add statement expression 
This is a GNU C extension but will be useful for writing tests.
 2020-10-08 15:43:05 +09:00
Rui Ueyama c2cc1d3c45 Add \x<hexadecimal-sequence> 2020-10-08 15:43:05 +09:00
Rui Ueyama 699d2b7e3f Add \<octal-sequence> 2020-10-08 15:43:04 +09:00
Rui Ueyama ad7749f2fa Add \a, \b, \t, \n \v, \f, \r and \e 2020-10-08 15:42:45 +09:00
Rui Ueyama 35a0bcd366 Refactoring: Add a utility function 2020-10-08 14:31:22 +09:00
Rui Ueyama 4cedda2dbe Add string literal 2020-10-07 20:13:26 +09:00
Rui Ueyama be38d63d1b Add char type 2020-10-07 20:13:26 +09:00
Rui Ueyama a4d3223a72 Add global variables 2020-10-07 20:13:26 +09:00
Rui Ueyama 0b7663481d Merge Function with Var 
No functional change
 2020-10-07 20:13:26 +09:00
Rui Ueyama 3e55cafef8 Add sizeof 2020-10-07 20:13:26 +09:00
Rui Ueyama 648646bba7 Add [] operator 2020-10-07 20:13:26 +09:00
Rui Ueyama 3ce1b2d067 Add arrays of arrays 2020-10-07 20:13:26 +09:00
Rui Ueyama 8b6395d0f2 Add one dimensional arrays 2020-10-07 20:13:26 +09:00
Rui Ueyama aacc0cfec2 Support function definition up to 6 parameters 2020-10-07 20:13:26 +09:00
Rui Ueyama 6cb4220f33 Support zero-arity function definition 2020-10-07 20:13:25 +09:00
Rui Ueyama 964b1d2a0e Support function call with up to 6 arguments 2020-10-07 20:13:25 +09:00
Rui Ueyama 30a3992627 Support zero-arity function calls 2020-10-07 20:13:25 +09:00
Rui Ueyama b4e82cf7ce Add keyword "int" and make variable definition mandatory 2020-10-07 20:13:25 +09:00
Rui Ueyama a6bc4ab101 Make pointer arithmetic work 2020-10-07 20:13:25 +09:00
Rui Ueyama 863e2b8de2 Add unary & and * 2020-10-07 20:13:25 +09:00
Rui Ueyama 3d8627719b Add a representative node to each Node to improve error messages 2020-10-07 20:13:25 +09:00
Rui Ueyama 5b142b1dcf Add LICENSE and README.md 2020-10-07 20:13:25 +09:00
Rui Ueyama 1f3eb34f63 Add "while" statement 2020-10-07 20:13:25 +09:00