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[Bug middle-end/33713] [4.3 Regression] can't find a register in class 'GENERAL_REGS' while reloading 'asm'
- From: "matz at gcc dot gnu dot org" <gcc-bugzilla at gcc dot gnu dot org>
- To: gcc-bugs at gcc dot gnu dot org
- Date: 9 Oct 2007 16:50:32 -0000
- Subject: [Bug middle-end/33713] [4.3 Regression] can't find a register in class 'GENERAL_REGS' while reloading 'asm'
- References: <bug-33713-10053@http.gcc.gnu.org/bugzilla/>
- Reply-to: gcc-bugzilla at gcc dot gnu dot org
------- Comment #1 from matz at gcc dot gnu dot org 2007-10-09 16:50 -------
In 4.2.x CSE1 will already fold back the force-addr insns into the users,
i.e. the asm insn will not even see different registers in those 'm' operands
as address but simply (argp + <something>). trunk somehow manages to _not_
propagate these force-addr results into the asm, and that then creates this
problem, because that asm then suddenly has seven different pseudo regs as
input :-/
--
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=33713