diff options
Diffstat (limited to 'mrbgems/mruby-compiler/core/codegen.c')
| -rw-r--r-- | mrbgems/mruby-compiler/core/codegen.c | 18 |
1 files changed, 18 insertions, 0 deletions
diff --git a/mrbgems/mruby-compiler/core/codegen.c b/mrbgems/mruby-compiler/core/codegen.c index cefde8b7b..3853814ec 100644 --- a/mrbgems/mruby-compiler/core/codegen.c +++ b/mrbgems/mruby-compiler/core/codegen.c @@ -188,6 +188,11 @@ genop_peep(codegen_scope *s, mrb_code i, int val) if (val) break; switch (c0) { case OP_MOVE: + if (GETARG_A(i) == GETARG_A(i0)) { + /* skip overriden OP_MOVE */ + s->pc--; + s->iseq[s->pc] = i; + } if (GETARG_B(i) == GETARG_A(i0) && GETARG_A(i) == GETARG_B(i0)) { /* skip swapping OP_MOVE */ return 0; @@ -406,7 +411,18 @@ push_(codegen_scope *s) nregs_update; } +static void +push_n_(codegen_scope *s, size_t n) +{ + if (s->sp+n > 511) { + codegen_error(s, "too complex expression"); + } + s->sp+=n; + nregs_update; +} + #define push() push_(s) +#define push_n(n) push_n_(s,n) #define pop_(s) ((s)->sp--) #define pop() pop_(s) #define pop_n(n) (s->sp-=(n)) @@ -1001,6 +1017,8 @@ gen_vmassignment(codegen_scope *s, node *tree, int rhs, int val) else { pop(); } + push_n(post); + pop_n(post); genop(s, MKOP_ABC(OP_APOST, cursp(), n, post)); n = 1; if (t->car) { /* rest */ |