IR: add 3rd operand to Instr

The motivation is for aarch64 msub/madd instrs, for isel to produce. But
it should be useful for other things too.

1 files changed, 1 insertions, 1 deletions

diff --git a/src/ir_stack.c b/src/ir_stack.c
index d15a764..ff49805 100644
--- a/src/ir_stack.c
+++ b/src/ir_stack.c
@@ -18,7 +18,7 @@ lowerstack(Function *fn)
             fn->stksiz += siz;
             fn->stksiz = alignup(fn->stksiz, 1 << alignlog2);
             if (fn->stksiz > (1<<20)-1) error(NULL, "'%s' stack frame too big", fn->name);
-            *ins = mkinstr(Onop,0,);
+            *ins = mkinstr0(Onop,0);
             replcuses(mkref(RTMP, t), mkref(RSTACK, fn->stksiz));
          }
       }