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[Bug rtl-optimization/32296] [4.3 Regression] Bootstrap failure in stage1 on hppa*-*-*
- From: "dave at hiauly1 dot hia dot nrc dot ca" <gcc-bugzilla at gcc dot gnu dot org>
- To: gcc-bugs at gcc dot gnu dot org
- Date: 13 Jun 2007 03:45:03 -0000
- Subject: [Bug rtl-optimization/32296] [4.3 Regression] Bootstrap failure in stage1 on hppa*-*-*
- References: <bug-32296-276@http.gcc.gnu.org/bugzilla/>
- Reply-to: gcc-bugzilla at gcc dot gnu dot org
------- Comment #8 from dave at hiauly1 dot hia dot nrc dot ca 2007-06-13 03:45 -------
Subject: Re: [4.3 Regression] Bootstrap failure in stage1 on hppa*-*-*
> I think the solution is to remove this check from the insn definition
> in pa.md and change the check in hppa_can_use_return_insn_p()
> to ! df_hard_reg_used_p().
This doesn't work. The problem seems to be that df_regs_ever_live (2)
doesn't provide an indication that a function isn't a leaf function
anymore. Calls clobber register r2 but they don't us it.
Dave
--
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=32296