Implement basic aarch64 struct arg passing ABI

- Missing: vaargs, >2 member HFAs

- Reworked the way stack allocation references are lowered. Now RSTACK
  persists throughout all passes until emit. This allows deferring stack
  frame layouting until the end in a less messy way than before, which
  was emiting frame-pointer relative addresses @ isel time and patching them up
  later in emit to account for actual stack frame layout.

1 files changed, 1 insertions, 1 deletions

diff --git a/src/ir_dump.c b/src/ir_dump.c
index 4c18a70..b66fd95 100644
--- a/src/ir_dump.c
+++ b/src/ir_dump.c
@@ -168,7 +168,7 @@ dumpref(enum op o, Ref ref)
       }
       break;
    case RSTACK:
-      bfmt(out, "[stack %d]", ref.i);
+      bfmt(out, "stack(%d)", ref.i);
       break;
    default: assert(!"ref");
    }