diff options
Diffstat (limited to 'compiler.c')
| -rw-r--r-- | compiler.c | 25 |
1 files changed, 25 insertions, 0 deletions
@@ -226,6 +226,7 @@ static struct ref compile_expr(struct ir *ir, struct symtab *symtab, struct info r1 = ref_mem(r1.reg, 0, REFREL_ZERO); break; break; } + case REF_VARNAME: assert(false); } struct ref r0 = ref_next_register(); ir_append(ir, irins_make_01(INS_MOV, r0, r1)); @@ -430,6 +431,30 @@ static void compile_node(struct ir *ir, struct symtab *symtab, struct info info, break; } + case N_IRINS: { + bool haveref[3]; + irins_which_refs(node->irins, haveref); + for (int i = 0; i < 3; i++) { + if (!haveref[i]) continue; + struct ref *ref = &node->irins->three_refs[i]; + if (ref->type == REF_VARNAME) { + struct symbol *sym = symtab_find(symtab, ref->name); + if (!sym) { + fprintf(stderr, "Use of undeclared variable '%s' in asm block\n", node->name); + exit(1); + } + if (sym->stype != ST_VAR) { + fprintf(stderr, "Variable reference in asm block should be variable\n"); + exit(1); + } + *ref = sym->ref; + } + } + ir_append(ir, node->irins); + node->irins = NULL; + break; + } + default: // hmm, maybe it's an expression statement? compile_expr(ir, symtab, info, node); break; |