diff options
| author | Yukihiro "Matz" Matsumoto <[email protected]> | 2020-01-17 09:28:21 +0900 |
|---|---|---|
| committer | Yukihiro "Matz" Matsumoto <[email protected]> | 2020-05-07 08:38:46 +0900 |
| commit | fa8668c77d181a5075dc56fb63d6fa087ab4b1d3 (patch) | |
| tree | 6ff4773e5be236b2783f4dc47aaa2095bb4454d1 /mrbgems/mruby-compiler/core/codegen.c | |
| parent | 47f5f887e892ce46fecd12ad97193a501e09accb (diff) | |
| download | mruby-fa8668c77d181a5075dc56fb63d6fa087ab4b1d3.tar.gz mruby-fa8668c77d181a5075dc56fb63d6fa087ab4b1d3.zip | |
Add a new instruction `OP_LOADI16`.
Which loads 16bit integer to the register. The instruction number should
be reorder on massive instruction refactoring. The instruction is added
for `mruby/c` which had performance issue with `OP_EXT`. With this
instruction, `mruby/c` VM can just raise errors on `OP_EXT` extension
instructions.
Diffstat (limited to 'mrbgems/mruby-compiler/core/codegen.c')
| -rw-r--r-- | mrbgems/mruby-compiler/core/codegen.c | 21 |
1 files changed, 16 insertions, 5 deletions
diff --git a/mrbgems/mruby-compiler/core/codegen.c b/mrbgems/mruby-compiler/core/codegen.c index 717d9eb9a..162666eb9 100644 --- a/mrbgems/mruby-compiler/core/codegen.c +++ b/mrbgems/mruby-compiler/core/codegen.c @@ -2440,12 +2440,20 @@ codegen(codegen_scope *s, node *tree, int val) else #endif { - if (i == -1) genop_1(s, OP_LOADI__1, cursp()); - else if (i < 0) genop_2(s, OP_LOADINEG, cursp(), (uint16_t)-i); + if (i < 0) { + if (i == -1) genop_1(s, OP_LOADI__1, cursp()); + else if (i >= -0xff) genop_2(s, OP_LOADINEG, cursp(), (uint16_t)-i); + else if (i >= -0x8000) genop_2S(s, OP_LOADI16, cursp(), (uint16_t)i); + else goto lit_int; + } else if (i < 8) genop_1(s, OP_LOADI_0 + (uint8_t)i, cursp()); - else if (i <= 0xffff) genop_2(s, OP_LOADI, cursp(), (uint16_t)i); + else if (i <= 0xff) genop_2(s, OP_LOADI, cursp(), (uint16_t)i); + else if (i <= 0xffff) genop_2S(s, OP_LOADI16, cursp(), (uint16_t)i); else { - int off = new_lit(s, mrb_fixnum_value(i)); + int off; + + lit_int: + off = new_lit(s, mrb_fixnum_value(i)); genop_2(s, OP_LOADL, cursp(), off); } } @@ -2501,9 +2509,12 @@ codegen(codegen_scope *s, node *tree, int val) else { #endif if (i == -1) genop_1(s, OP_LOADI__1, cursp()); - else if (i >= -0xffff) { + else if (i >= -0xff) { genop_2(s, OP_LOADINEG, cursp(), (uint16_t)-i); } + else if (i >= -0x8000) { + genop_2S(s, OP_LOADI16, cursp(), (uint16_t)i); + } else { int off = new_lit(s, mrb_fixnum_value(i)); genop_2(s, OP_LOADL, cursp(), off); |