BEAM loader: Simplify handling of the func_info/3 instruction

For some historical reason, the transformation of a func_info/3
instruction to the internal i_func_info/4 instruction is more
involved than it needs to be. Remove the gen_func_info() function
in the loader and use a simple transformation.

2 files changed, 1 insertions, 33 deletions

diff --git a/erts/emulator/beam/beam_load.c b/erts/emulator/beam/beam_load.c
index 788cb4209c..c697b1ef31 100644
--- a/erts/emulator/beam/beam_load.c
+++ b/erts/emulator/beam/beam_load.c
@@ -480,8 +480,6 @@ static GenOp* gen_select_literals(LoaderState* stp, GenOpArg S,
 				  GenOpArg* Rest);
 static GenOp* const_select_val(LoaderState* stp, GenOpArg S, GenOpArg Fail,
 			       GenOpArg Size, GenOpArg* Rest);
-static GenOp* gen_func_info(LoaderState* stp, GenOpArg mod, GenOpArg Func,
-			    GenOpArg arity, GenOpArg label);
 
 static int freeze_code(LoaderState* stp);
 
@@ -3401,36 +3399,6 @@ const_select_val(LoaderState* stp, GenOpArg S, GenOpArg Fail,
     return op;
 }
 
-
-static GenOp*
-gen_func_info(LoaderState* stp, GenOpArg mod, GenOpArg func,
-	      GenOpArg arity, GenOpArg label)
-{
-    GenOp* fi;
-    GenOp* op;
-
-    NEW_GENOP(stp, fi);
-    fi->op = genop_i_func_info_4;
-    fi->arity = 4;
-    fi->a[0].type = TAG_u;	/* untagged Zero */
-    fi->a[0].val = 0;
-    fi->a[1] = mod;
-    fi->a[2] = func;
-    fi->a[3] = arity;
-
-    NEW_GENOP(stp, op);
-    op->op = genop_label_1;
-    op->arity = 1;
-    op->a[0] = label;
-    
-    fi->next = op;
-    op->next = NULL;
-
-    return fi;
-}
-
-
-
 static GenOp*
 gen_make_fun2(LoaderState* stp, GenOpArg idx)
 {
diff --git a/erts/emulator/beam/ops.tab b/erts/emulator/beam/ops.tab
index e861f97e7a..6caa1e0b2d 100644
--- a/erts/emulator/beam/ops.tab
+++ b/erts/emulator/beam/ops.tab
@@ -1066,7 +1066,7 @@ is_function f y
 is_function f r
 is_function Fail=f c => jump Fail
 
-func_info M=a F=a A=u | label L => gen_func_info(M, F, A, L)
+func_info M F A => i_func_info u M F A
 
 # ================================================================
 # New bit syntax matching (R11B).