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Re: RFA: Fix PR21767 (Was: Re: RFD: what to do about stale REG_EQUAL notes in dead_or_predictable)

From: Joern RENNECKE <joern dot rennecke at st dot com>
To: Bernd Schmidt <bernds_cb1 at t-online dot de>
Cc: gcc-patches at gcc dot gnu dot org
Date: Wed, 01 Jun 2005 12:29:37 +0100
Subject: Re: RFA: Fix PR21767 (Was: Re: RFD: what to do about stale REG_EQUAL notes in dead_or_predictable)
References: <42960CFE.9000705@st.com> <429CBA1B.2040803@st.com> <429D8456.7030907@t-online.de>

Bernd Schmidt wrote:

2005-05-27 J"orn Rennecke <joern.rennecke@st.com>
    * rtl.h (function_invariant_p): Re-add declaration.
    * reload1.c (function_invariant_p): No longer static.
    * ifcvt.c (dead_or_predicable): Remove REG_EQUAL notes that
    might have become invalid.
This is OK. I think we have a convention for mentioning the PR number in ChangeLogs though.

Thanks. Yes, I'll add the PR number. In the meantime, I've bootstrapped & regtested (*) this on i686-pc-linux-gnu, so I'm checking this in now.

(*) Since CVS won't bootstrap out of the box, I have used as baseline sources from yesterday 16:00 UTC with this patch:

005-05-31 J"orn Rennecke <joern.rennecke@st.com>

	* calls.c (emit_library_call_value_1): For const functions, add
	USEs of the stack slots to CALL_INSN_FUNCTION_USAGE.
http://gcc.gnu.org/ml/gcc-patches/2005-05/msg02946.html

Yes, and this also should say PR rtl-optimization/21848 .

References:
- Re: RFA: Fix PR21767 (Was: Re: RFD: what to do about stale REG_EQUALnotes in dead_or_predictable)
  - From: Bernd Schmidt

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