command line switch for debug options

1 files changed, 5 insertions, 0 deletions

diff --git a/regalloc.c b/regalloc.c
index 92d2b30..5810079 100644
--- a/regalloc.c
+++ b/regalloc.c
@@ -110,6 +110,11 @@ regalloc(struct function *fn)
          if (ins->r.t) use(blk, ins->op, hint1, &ins->r);
       }
    } while ((blk = blk->lprev) != last);
+
+   if (ccopt.dbg.r) {
+      efmt("after regalloc:\n");
+      irdump(fn, fn->name);
+   }
 }
 
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