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cmd/gc: fix spurious "bad negated constant" for complex constants.

Browse source 
Fixes #7648.

LGTM=r, remyoudompheng
R=golang-codereviews, r, remyoudompheng, jscrockett01
CC=golang-codereviews
https://golang.org/cl/80560045
This commit is contained in:
Shenghou Ma 2014-04-01 02:55:38 -04:00
parent f8c25b62b8
commit 15bc7ab957
6 changed files with 397 additions and 964 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

4
src/cmd/gc/go.y
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@ -2140,6 +2140,10 @@ hidden_literal:
case CTFLT:
mpnegflt($$->val.u.fval);
break;
case CTCPLX:
mpnegflt(&$$->val.u.cval->real);
mpnegflt(&$$->val.u.cval->imag);
break;
default:
yyerror("bad negated constant");
}

1164
src/cmd/gc/y.tab.c
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File diff suppressed because it is too large Load diff

36
src/cmd/gc/y.tab.h
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@ -1,13 +1,14 @@
/* A Bison parser, made by GNU Bison 2.5. */
/* A Bison parser, made by GNU Bison 2.3. */
/* Bison interface for Yacc-like parsers in C
/* Skeleton interface for Bison's Yacc-like parsers in C
Copyright (C) 1984, 1989-1990, 2000-2011 Free Software Foundation, Inc.
Copyright (C) 1984, 1989, 1990, 2000, 2001, 2002, 2003, 2004, 2005, 2006
Free Software Foundation, Inc.
This program is free software: you can redistribute it and/or modify
This program is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation, either version 3 of the License, or
(at your option) any later version.
the Free Software Foundation; either version 2, or (at your option)
any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
@ -15,7 +16,9 @@
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program. If not, see <http://www.gnu.org/licenses/>. */
along with this program; if not, write to the Free Software
Foundation, Inc., 51 Franklin Street, Fifth Floor,
Boston, MA 02110-1301, USA. */
/* As a special exception, you may create a larger work that contains
part or all of the Bison parser skeleton and distribute that work
@ -30,7 +33,6 @@
This special exception was added by the Free Software Foundation in
version 2.2 of Bison. */
/* Tokens. */
#ifndef YYTOKENTYPE
# define YYTOKENTYPE
@ -144,28 +146,22 @@
#if ! defined YYSTYPE && ! defined YYSTYPE_IS_DECLARED
typedef union YYSTYPE
{
/* Line 2068 of yacc.c */
#line 28 "go.y"
{
Node* node;
NodeList* list;
Type* type;
Sym* sym;
struct Val val;
int i;
/* Line 2068 of yacc.c */
#line 163 "y.tab.h"
} YYSTYPE;
# define YYSTYPE_IS_TRIVIAL 1
}
/* Line 1529 of yacc.c. */
#line 160 "y.tab.h"
YYSTYPE;
# define yystype YYSTYPE /* obsolescent; will be withdrawn */
# define YYSTYPE_IS_DECLARED 1
# define YYSTYPE_IS_TRIVIAL 1
#endif
extern YYSTYPE yylval;

11
test/fixedbugs/issue7648.dir/a.go Normal file
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@ -0,0 +1,11 @@
// Copyright 2014 The Go Authors. All rights reserved.
// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.
package a
const (
sinPi4 = 0.70710678118654752440084436210484903928483593768847
A = complex(sinPi4, -sinPi4)
)

11
test/fixedbugs/issue7648.dir/b.go Normal file
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@ -0,0 +1,11 @@
// Copyright 2014 The Go Authors. All rights reserved.
// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.
package b
import "a"
func f() {
println(a.A)
}

9
test/fixedbugs/issue7648.go Normal file
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@ -0,0 +1,9 @@
// compiledir
// Copyright 2014 The Go Authors. All rights reserved.
// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.
// Issue 7648: spurious "bad negated constant" for complex constants.
package ignored