c29822f80c
codegen.c (gen_addsub): use mrb_int_sub_overflow().
2021-09-20 17:32:38 +09:00
0455313a9b
codegen.c: avoid constant folding OP_LOADI16 across branch target.
2021-09-20 17:30:14 +09:00
ca7228ad42
codegen.c: gen_move should generate proper OP_LOADI16.
2021-09-20 16:58:27 +09:00
1baf08f174
codegen.c: rename loopinfo->acc to reg.
...
`acc` meant `accumulator` but it is not an accumulator but just a
register position.
2021-09-20 10:40:30 +09:00
2083d99392
codegen.c: check no_peephole(s) before mrb_last_insn(s).
2021-09-20 10:37:11 +09:00
f85c50543b
codegen.c (mrb_last_insn): no previous instruction on top.
2021-09-20 10:35:01 +09:00
8bfa99975c
codegen.c: unify OP_ARYPUSH and OP_ARYPUSH_N.
...
- `OP_ARYPUSH` now takes operand for the number of pushing elements
- the code generator consume the stack no more than `64` for `mruby/c`
2021-09-19 09:07:20 +09:00
7c99df8416
ops.h: add OP_ARYPUSH_N instruction.
...
Add n elements at once. Reduces instructions for huge array
initialization. In addition, `gen_value` function in `codegen.c` was
refactored and clarified.
2021-09-17 07:49:47 +09:00
cd0ffd6f1c
codegen.c: fixed gen_setxv bug with taking assignment value; fix #5550
2021-09-10 15:39:24 +09:00
69da192eec
codegen.c: gen_move refactoring.
2021-09-10 15:38:51 +09:00
28b5c30b96
ops.h: add OP_SYMBOL instruction.
...
It generates a symbol by interning from the pool string.
2021-09-10 10:23:28 +09:00
b34713304a
fixup! codegen.c: resurrect s->lastpc to reduce iseq scans.
2021-09-10 10:22:49 +09:00
5fbea87fe5
codegen.c: resurrect s->lastpc to reduce iseq scans.
...
When parsing scripts frequent scans could cost too much.
2021-09-10 10:15:55 +09:00
6fc6880f1f
codegen.c: improve exception handling in generate_code.
...
- remove `mrb_jmpbuf` from `codegen_scope`
- unify exception handling of `mrb_state` and `codegen_scope`
2021-09-07 07:33:28 +09:00
7552b9322a
codegen.c: avoid integer overflow.
2021-09-05 09:25:44 +09:00
5a57602860
Organize the include of header files
...
- `#include <math.h>` is done in `mruby.h`.
Eliminate the need to worry about the `MRB_NO_FLOAT` macro.
- Include mruby header files before standard header files.
If the standard header file is already placed before `mruby.h`, the standard header file added in the future tends to be placed before `mruby.h`.
This change should some reduce the chances of macros that must be defined becoming undefined in C++ or including problematic header files in a particular mruby build configuration.
2021-08-21 15:42:57 +09:00
9e74aad43c
codegen.c: fixed a bug in mrb_decode_insn().
2021-08-13 12:38:10 +09:00
7907c184be
codegen.c: add a comment that notice rewind_pc calling convention.
...
`rewind_pc` should not be called when `s->pc` is `0` (top).
2021-08-13 10:11:36 +09:00
9c3d305530
codegen.c: refactor mrb_last_insn().
...
Last commit made `mrb_decode_insn()` to take `NULL` as `pc`.
2021-08-13 10:10:17 +09:00
cbdc4f2c5c
codegen.c: mrb_prev_pc can return NULL at the top of iseq.
2021-08-13 10:02:01 +09:00
e1b170160b
codegen.c: avoid signedness warning of int comparison.
2021-08-11 16:10:32 +09:00
a85f2299c0
codegen.c: avoid cross initialization of mrb_insn_data.
2021-08-11 16:09:51 +09:00
b1b9b157f8
codegen.c: more peephole optimization.
...
`a=10; a+=1` to generate:
```
1 000 OP_LOADI R1 11 ; R1:a
```
instead of:
```
1 000 OP_LOADI R1 10 ; R1:a
1 003 OP_MOVE R2 R1 ; R1:a
1 006 OP_ADDI R2 1
1 009 OP_MOVE R1 R2 ; R1:a
```
2021-08-11 10:48:18 +09:00
06f49b3f84
codegen.c: need to push the value when the loop was eliminated.
2021-08-07 12:11:38 +09:00
37dbb91b96
codegen.c: -9223372036854775808 % -1 overflows 64 bit integer.
2021-08-06 10:35:06 +09:00
7ecc16f97a
codegen.c: remove code duplication from NODE_ARRAY.
2021-08-05 16:59:32 +09:00
9cb44f5ae3
codegen.c: detect integer overflow in division.
...
`MRB_INT_MIN / -1` overflows.
2021-08-04 12:25:14 +09:00
caaa07f2da
codegen.c: check zero division before constant folding.
2021-08-03 16:43:50 +09:00
2092bc7fe8
codegen.c: avoid division by zero in constant folding.
2021-08-03 15:57:01 +09:00
4fa24e4ff9
codegen.c: allow constant folding for negative integer modulo.
2021-08-02 16:48:16 +09:00
e93642d53f
codegen.c: refactor readint() to read MRB_INT_MIN.
2021-08-02 14:10:38 +09:00
9902ab50fc
codegen.c: fix a bug in bit shift constant folding.
2021-08-02 08:53:50 +09:00
907df715ef
codegen.c: refactor unary operator optimization.
2021-08-02 08:51:39 +09:00
188c150f44
codegen.c: constant folding binary operators, <<, >>, %, &, |, ^.
2021-08-02 07:34:54 +09:00
1315e8751e
codegen.c: eliminate loop if condition is constant.
...
For example, `while false; ...; end` should be removed.
2021-08-01 20:33:41 +09:00
9dc801a798
codegen.c: peephole optimize OP_JMPxxx.
2021-08-01 20:31:19 +09:00
b1cb6c3c69
codegen.c: allow constant folding for mul / div.
2021-07-31 21:14:54 +09:00
43999492a7
codegen.c: mrb_prev_pc() to take previous instruction position.
...
It rescans `s->iseq` so that peephole optimizer can take multiple
previous instructions for constant folding, etc.
2021-07-31 21:11:36 +09:00
517071e3fa
codegen.c: order instructions in natural order for loops.
...
`while` and `until` generates in `cond` `jmpif` `body` `jmp` order.
It used to be in `jmp` `body` `cond` `jmpif` order.
2021-07-29 17:38:18 +09:00
64358c09d9
codegen.c: labels should be uint32_t.
2021-07-28 23:08:58 +09:00
adfd29c1b0
codegen.c: fix loopinfo structure members.
...
- `pc0`: `next` destination
- `pc1`: `redo` destination (renamed from `pc2`)
- `pc3`: `break` destination (renamed from `pc3`)
old `pc1` was unused so removed.
2021-07-28 23:08:58 +09:00
e81d497155
codegen.c: removed bytecode when the value of while is not used.
2021-07-28 23:08:58 +09:00
2910af0010
codegen.c: fixed a bug when value is taken from while and until.
...
```ruby
p ((while true; p 1; break; end))
```
should print `1 nil` but was `1`.
2021-07-28 23:08:57 +09:00
5c804cf68f
Remove redundant include headers.
...
- stdlib.h
- stddef.h
- stdint.h
- stdarg.h
- limits.h
- float.h
2021-07-25 13:07:10 +09:00
9c43276eb5
codegen.c: fixed a bug in OP_LOADI32 peephole optimization.
2021-07-23 11:20:18 +09:00
598c97ef76
codegen.c: get_int_operand() to support OP_LOADL (int in pool).
2021-07-22 11:49:47 +09:00
d0fed63414
codegen.c: add constant folding for unary numeric operators (+, -, ~).
2021-07-22 11:39:52 +09:00
3e9ed1cca2
codegen.c: compare symbol names directly avoiding string conversion.
2021-07-22 11:21:00 +09:00
e42f192827
codegen.c: skip -@ call if the argument is a literal integer.
2021-07-21 13:20:34 +09:00
2ef6e94489
codegen.c: move gen_setxv() after new_sym().
2021-07-21 13:15:27 +09:00
Yukihiro "Matz" Matsumoto