From 8c9863948b440f2741b6df3ffda2c6dd2b7b363c Mon Sep 17 00:00:00 2001 From: =?UTF-8?q?Bj=C3=B6rn=20Gustavsson?= Date: Tue, 4 Sep 2012 10:53:40 +0200 Subject: Introduce the mandatory beam_a and beam_z passes Introduce the mandary beam_a pass that will be run directly after code generation, and the mandatory beam_z pass that will be run just before beam_asm. Since these passes surround the optimizations, beam_a can (for example) do instruction renaming to simplify the optimization passes and beam_z can undo those renamings. --- lib/compiler/src/beam_z.erl | 38 ++++++++++++++++++++++++++++++++++++++ 1 file changed, 38 insertions(+) create mode 100644 lib/compiler/src/beam_z.erl (limited to 'lib/compiler/src/beam_z.erl') diff --git a/lib/compiler/src/beam_z.erl b/lib/compiler/src/beam_z.erl new file mode 100644 index 0000000000..706500e01c --- /dev/null +++ b/lib/compiler/src/beam_z.erl @@ -0,0 +1,38 @@ +%% +%% %CopyrightBegin% +%% +%% Copyright Ericsson AB 2012. All Rights Reserved. +%% +%% The contents of this file are subject to the Erlang Public License, +%% Version 1.1, (the "License"); you may not use this file except in +%% compliance with the License. You should have received a copy of the +%% Erlang Public License along with this software. If not, it can be +%% retrieved online at http://www.erlang.org/. +%% +%% Software distributed under the License is distributed on an "AS IS" +%% basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See +%% the License for the specific language governing rights and limitations +%% under the License. +%% +%% %CopyrightEnd% +%% +%% Purpose: Run right before beam_asm to do any final fix-ups or clean-ups. +%% (Mandatory.) + +-module(beam_z). + +-export([module/2]). + +module({Mod,Exp,Attr,Fs0,Lc}, _Opt) -> + Fs = [function(F) || F <- Fs0], + {ok,{Mod,Exp,Attr,Fs,Lc}}. + +function({function,Name,Arity,CLabel,Is}) -> + try + {function,Name,Arity,CLabel,Is} + catch + Class:Error -> + Stack = erlang:get_stacktrace(), + io:fwrite("Function: ~w/~w\n", [Name,Arity]), + erlang:raise(Class, Error, Stack) + end. -- cgit v1.2.3