diff options
| author | Yukihiro "Matz" Matsumoto <[email protected]> | 2021-12-01 14:29:44 +0900 |
|---|---|---|
| committer | Yukihiro "Matz" Matsumoto <[email protected]> | 2021-12-01 14:29:44 +0900 |
| commit | 76659a66ae43ae18211b1050fcf724168508c2d8 (patch) | |
| tree | 7186384db39761c571e832af38b6ca02c83c4d08 /mrbgems | |
| parent | 7d6b8024b56f59289baba5bc94a4ab5bf82f8298 (diff) | |
| download | mruby-76659a66ae43ae18211b1050fcf724168508c2d8.tar.gz mruby-76659a66ae43ae18211b1050fcf724168508c2d8.zip | |
codegen.c: skip `ADDI/SUBI` for zero operand.
Diffstat (limited to 'mrbgems')
| -rw-r--r-- | mrbgems/mruby-compiler/core/codegen.c | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/mrbgems/mruby-compiler/core/codegen.c b/mrbgems/mruby-compiler/core/codegen.c index a1cde4d7d..fa7a98921 100644 --- a/mrbgems/mruby-compiler/core/codegen.c +++ b/mrbgems/mruby-compiler/core/codegen.c @@ -781,6 +781,7 @@ gen_addsub(codegen_scope *s, uint8_t op, uint16_t dst) /* OP_ADDI/OP_SUBI takes upto 16bits */ if (n > INT16_MAX || n < INT16_MIN) goto normal; rewind_pc(s); + if (n == 0) return; if (n > 0) { if (op == OP_ADD) genop_2(s, OP_ADDI, dst, (uint16_t)n); else genop_2(s, OP_SUBI, dst, (uint16_t)n); |