From mboxrd@z Thu Jan  1 00:00:00 1970
Return-Path: <gcc-bugs-return-452171-listarch-gcc-bugs=gcc.gnu.org@gcc.gnu.org>
Received: (qmail 22703 invoked by alias); 21 May 2014 14:55:51 -0000
Mailing-List: contact gcc-bugs-help@gcc.gnu.org; run by ezmlm
Precedence: bulk
List-Id: <gcc-bugs.gcc.gnu.org>
List-Archive: <http://gcc.gnu.org/ml/gcc-bugs/>
List-Post: <mailto:gcc-bugs@gcc.gnu.org>
List-Help: <mailto:gcc-bugs-help@gcc.gnu.org>
Sender: gcc-bugs-owner@gcc.gnu.org
Received: (qmail 22633 invoked by uid 48); 21 May 2014 14:55:42 -0000
From: "dvyukov at google dot com" <gcc-bugzilla@gcc.gnu.org>
To: gcc-bugs@gcc.gnu.org
Subject: [Bug go/61273] New: gccgo: ICE in Unsafe_type_conversion_expression::do_get_backend [GoSmith]
Date: Wed, 21 May 2014 14:55:00 -0000
X-Bugzilla-Reason: CC
X-Bugzilla-Type: new
X-Bugzilla-Watch-Reason: None
X-Bugzilla-Product: gcc
X-Bugzilla-Component: go
X-Bugzilla-Version: 4.10.0
X-Bugzilla-Keywords:
X-Bugzilla-Severity: normal
X-Bugzilla-Who: dvyukov at google dot com
X-Bugzilla-Status: UNCONFIRMED
X-Bugzilla-Priority: P3
X-Bugzilla-Assigned-To: ian at airs dot com
X-Bugzilla-Target-Milestone: ---
X-Bugzilla-Flags:
X-Bugzilla-Changed-Fields: bug_id short_desc product version bug_status bug_severity priority component assigned_to reporter
Message-ID: <bug-61273-4@http.gcc.gnu.org/bugzilla/>
Content-Type: text/plain; charset="UTF-8"
Content-Transfer-Encoding: 7bit
X-Bugzilla-URL: http://gcc.gnu.org/bugzilla/
Auto-Submitted: auto-generated
MIME-Version: 1.0
X-SW-Source: 2014-05/txt/msg01863.txt.bz2

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=61273

            Bug ID: 61273
           Summary: gccgo: ICE in
                    Unsafe_type_conversion_expression::do_get_backend
                    [GoSmith]
           Product: gcc
           Version: 4.10.0
            Status: UNCONFIRMED
          Severity: normal
          Priority: P3
         Component: go
          Assignee: ian at airs dot com
          Reporter: dvyukov at google dot com

gccgo (GCC) 4.10.0 20140516 (experimental)

The program is:

package main
func main() {
    c := make(chan bool, 1)
    for ; false; c <- false {
    }
}

$ go build -compiler=gccgo src.go 


src.go:6:1: error: expected '{'
 }
 ^
src.go:4:8: error: expected type
  for ; false; c <- false {
        ^
go1: internal compiler error: in do_get_backend, at
go/gofrontend/expressions.cc:3532
0x5a21eb Unsafe_type_conversion_expression::do_get_backend(Translate_context*)
    ../../gcc/go/gofrontend/expressions.cc:3527
0x5bb6eb Call_expression::do_get_backend(Translate_context*)
    ../../gcc/go/gofrontend/expressions.cc:9425
0x60a1d8 Send_statement::do_get_backend(Translate_context*)
    ../../gcc/go/gofrontend/statements.cc:4513
0x5db097 Block::get_backend(Translate_context*)
    ../../gcc/go/gofrontend/gogo.cc:5454
0x60741c Block_statement::do_get_backend(Translate_context*)
    ../../gcc/go/gofrontend/statements.cc:1811
0x5db097 Block::get_backend(Translate_context*)
    ../../gcc/go/gofrontend/gogo.cc:5454
0x60741c Block_statement::do_get_backend(Translate_context*)
    ../../gcc/go/gofrontend/statements.cc:1811
0x5db097 Block::get_backend(Translate_context*)
    ../../gcc/go/gofrontend/gogo.cc:5454
0x60741c Block_statement::do_get_backend(Translate_context*)
    ../../gcc/go/gofrontend/statements.cc:1811
0x5db097 Block::get_backend(Translate_context*)
    ../../gcc/go/gofrontend/gogo.cc:5454
0x5dc925 Function::build(Gogo*, Named_object*)
    ../../gcc/go/gofrontend/gogo.cc:5062
0x5ddc57 Named_object::get_backend(Gogo*, std::vector<Bexpression*,
std::allocator<Bexpression*> >&, std::vector<Btype*, std::allocator<Btype*> >&,
std::vector<Bfunction*, std::allocator<Bfunction*> >&)
    ../../gcc/go/gofrontend/gogo.cc:6753
0x5e2b5c Gogo::write_globals()
    ../../gcc/go/gofrontend/gogo.cc:1136


gc successfully compiles the code.