Path: utzoo!yunexus!telly!ddsw1!mcdchg!rutgers!tut.cis.ohio-state.edu!GINGER.BERKELEY.EDU!mcgrath%tully.Berkeley.EDU
From: mcgrath%tully.Berkeley.EDU@GINGER.BERKELEY.EDU (Roland McGrath)
Newsgroups: gnu.gcc.bug
Subject: Bug in either GCC 1.31 grammar or in Bison
Message-ID: <8811240803.AA03068@tully.Berkeley.EDU>
Date: 24 Nov 88 08:03:28 GMT
Article-I.D.: tully.8811240803.AA03068
Sender: daemon@tut.cis.ohio-state.edu
Reply-To: roland@wheaties.ai.mit.edu
Distribution: gnu
Organization: GNUs Not Usenet
Lines: 17

There seems to be a bug in either the GCC 1.31 grammar (c-parse.y) or is
Bison.  The bug is independent of what machine GCC is configured for, but
I'm using a Sun 3 running Sun Unix 3.2.

For some reason, the parser gags on multiple clobbered registers in `asm'
statements.  The file:

foo (){
asm("insn" : : "r0", "r1");
}

produces:

bug1: In function foo:
bug1:2: parse error before `,'

It doesn't complain about only one clobbered register.