From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (qmail 19610 invoked by alias); 4 Dec 2008 20:00:19 -0000 Received: (qmail 18524 invoked by uid 48); 4 Dec 2008 19:58:57 -0000 Date: Thu, 04 Dec 2008 20:00:00 -0000 Message-ID: <20081204195857.18523.qmail@sourceware.org> X-Bugzilla-Reason: CC References: Subject: [Bug fortran/37131] inline matmul for small matrix sizes In-Reply-To: Reply-To: gcc-bugzilla@gcc.gnu.org To: gcc-bugs@gcc.gnu.org From: "tkoenig at gcc dot gnu dot org" Mailing-List: contact gcc-bugs-help@gcc.gnu.org; run by ezmlm Precedence: bulk List-Id: List-Archive: List-Post: List-Help: Sender: gcc-bugs-owner@gcc.gnu.org X-SW-Source: 2008-12/txt/msg00429.txt.bz2 ------- Comment #6 from tkoenig at gcc dot gnu dot org 2008-12-04 19:58 ------- (In reply to comment #5) > For comparison with ifort ("loop was vectorized" in lines 40, 41, 43): > matmul = 2.660166 s > subroutine without explicit interface: 0.0000000E+00 s > subroutine with explicit interface: 0.0000000E+00 s > inline with sum 0.0000000E+00 s ifort detects that the call to invalidate doesn't actually invalidate anything and so just removes the whole matmul stuff. Intelligent, but bad for benchmarks :-) -- http://gcc.gnu.org/bugzilla/show_bug.cgi?id=37131