Zdenek Dvorak - Re: [patch] (-fstrict-overflow) optimize counted loops on signed iv (original) (raw)

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• From: Zdenek Dvorak
• To: Richard Guenther
• Cc: Christian BRUEL , Ian Lance Taylor , gcc-patches at gcc dot gnu dot org
• Date: Thu, 15 Feb 2007 14:04:53 +0100
• Subject: Re: [patch] (-fstrict-overflow) optimize counted loops on signed iv
• References: <45D42560.2010506@st.com> <20070215093343.GA19299@atrey.karlin.mff.cuni.cz> <45D43AB6.4020709@st.com> <20070215111752.GA17650@atrey.karlin.mff.cuni.cz> <45D45681.1070902@st.com> <84fc9c000702150458r68b7d33bka3b4bf15dfc7c67f@mail.gmail.com>

Hello,

On 2/15/07, Christian BRUEL christian.bruel@st.com wrote:

for my curiosity, I just had a quick look at fold-const and it looks like 'fold_relational_const' only handle the case were ops are INTEGER_CST :

Look in fold_comparison instead. This is already handled.

no it is not (or at least, I cannot find it anywhere, and the transformations do not seem to be performed)?

Zdenek

• Follow-Ups:
  • Re: [patch] (-fstrict-overflow) optimize counted loops on signed iv
    * From: Richard Guenther
• References:
  • Re: [patch] (-fstrict-overflow) optimize counted loops on signed iv
    * From: Christian BRUEL
  • Re: [patch] (-fstrict-overflow) optimize counted loops on signed iv
    * From: Zdenek Dvorak
  • Re: [patch] (-fstrict-overflow) optimize counted loops on signed iv
    * From: Christian BRUEL
  • Re: [patch] (-fstrict-overflow) optimize counted loops on signed iv
    * From: Zdenek Dvorak
  • Re: [patch] (-fstrict-overflow) optimize counted loops on signed iv
    * From: Christian BRUEL
  • Re: [patch] (-fstrict-overflow) optimize counted loops on signed iv
    * From: Richard Guenther