diff options
| -rw-r--r-- | test/t2.c | 1 | ||||
| -rw-r--r-- | to_assembly.c | 13 |
2 files changed, 10 insertions, 4 deletions
@@ -14,6 +14,7 @@ void main() { mov b, @dir hwi 1 // legs } + holo_dec(dir); dir = dir + 1; if (dir == 4) dir = 0; } diff --git a/to_assembly.c b/to_assembly.c index bd680b3..6f40e2d 100644 --- a/to_assembly.c +++ b/to_assembly.c @@ -81,13 +81,18 @@ static void fix_function(struct ir *ir, int startidx, struct allocation *ral) { } free(offsets); - - if (spillspace == 0) return; + + // TODO: Really, nothing should be relative to BP, instead everything should use SP. That + // would completely eliminate this BP dance anyway. + + // if (spillspace == 0) return; ir_insert_before(ir, startidx + 0, irins_make_1(INS_PUSH, ref_reg(REG_BP))); ir_insert_before(ir, startidx + 1, irins_make_01(INS_MOV, ref_reg(REG_BP), ref_reg(REG_SP))); - ir_insert_before(ir, startidx + 2, - irins_make_012(INS_SUB, ref_reg(REG_SP), ref_reg(REG_SP), ref_imm(spillspace))); + if (spillspace != 0) { + ir_insert_before(ir, startidx + 2, + irins_make_012(INS_SUB, ref_reg(REG_SP), ref_reg(REG_SP), ref_imm(spillspace))); + } for (int idx = startidx + 1; idx < ir->len; idx++) { struct irins *ins = ir->inss[idx]; |