This is the mail archive of the gcc-patches@gcc.gnu.org mailing list for the GCC project.

Index Nav:	[Date Index] [Subject Index] [Author Index] [Thread Index]
Message Nav:	[Date Prev] [Date Next]	[Thread Prev] [Thread Next]
Other format:	[Raw text]

Re: [PATCH] Speed up single-threaded case of atomic ops and reduce text size

From: Paolo Bonzini <paolo dot bonzini at lu dot unisi dot ch>
To: Richard Guenther <rguenther at suse dot de>
Cc: libstdc++ at gcc dot gnu dot org, gcc-patches at gcc dot gnu dot org
Date: Wed, 16 Aug 2006 15:57:59 +0200
Subject: Re: [PATCH] Speed up single-threaded case of atomic ops and reduce text size
References: <Pine.LNX.4.64.0608161423160.4573@nyjnma.fhfr.qr> <44E311E1.5000605@suse.de> <44E314E7.9080600@suse.de> <Pine.LNX.4.64.0608161501140.4573@nyjnma.fhfr.qr>

Uh, do we build with -Wcast-qual?  There's nothing to get this warning
shut up unfortunately.

Using a const_cast?

~ bonzinip$ gcc -Wcast-qual -x c++ - -o - -S int f(volatile int *x) { return *const_cast <int *> (x); } ~ bonzinip$ gcc -Wcast-qual -x c++ - -o - -S int f(volatile int *x) { return *(int *) (x); } <stdin>: In function 'int f(volatile int*)': <stdin>:1: warning: cast from type 'volatile int*' to type 'int*' casts away constness ~ bonzinip$

Paolo

Follow-Ups:
- Re: [PATCH] Speed up single-threaded case of atomic ops and reduce text size
  - From: Paolo Carlini

References:
- [PATCH] Speed up single-threaded case of atomic ops and reduce text size
  - From: Richard Guenther
- Re: [PATCH] Speed up single-threaded case of atomic ops and reduce text size
  - From: Paolo Carlini
- Re: [PATCH] Speed up single-threaded case of atomic ops and reduce text size
  - From: Paolo Carlini
- Re: [PATCH] Speed up single-threaded case of atomic ops and reduce text size
  - From: Richard Guenther

Index Nav:	[Date Index] [Subject Index] [Author Index] [Thread Index]
Message Nav:	[Date Prev] [Date Next]	[Thread Prev] [Thread Next]