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Re: GCC-4.3.0 fails to compile SPECint-2006 with control speculation on itanium processor

From: Andrey Belevantsev <abel at ispras dot ru>
To: åæ <wu dot andrew dot xi at gmail dot com>
Cc: gcc-help at gcc dot gnu dot org, gcc at gcc dot gnu dot org, Maxim Kuvyrkov <maxim at codesourcery dot com>
Date: Fri, 11 Apr 2008 17:18:18 +0400
Subject: Re: GCC-4.3.0 fails to compile SPECint-2006 with control speculation on itanium processor
References: <f63285730804110457x55ea071ap5f1f331dff420c9b@mail.gmail.com>

åæ wrote:

Hi:

I am working on gcc-4.3.0 and Redhat ES 4. When I uses the compiler to
build specint-2006 benchmarks,
none passes the make with compiler option: -msched-control-spec
(enable control speculation on IA-64)

Control speculation is disabled by default on IA-64, so I think one of the scheduler patches accidentally broke it. This can be Maxim's rewrite of dependence lists. We will take a look. Meanwhile you can try 4.2 series, they should work.

Andrey

References:
- GCC-4.3.0 fails to compile SPECint-2006 with control speculation on itanium processor
  - From: 吴曦

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