Your message dated Fri, 27 Nov 2015 15:39:27 +0100 with message-id <56586B1F.6020400@debian.org> and subject line Re: Bug#805044: gcc-4.9: the option -ftree-vectorizer-verbose does not work has caused the Debian Bug report #805044, regarding gcc-4.9: the option -ftree-vectorizer-verbose does not work to be marked as done. This means that you claim that the problem has been dealt with. If this is not the case it is now your responsibility to reopen the Bug report if necessary, and/or fix the problem forthwith. (NB: If you are a system administrator and have no idea what this message is talking about, this may indicate a serious mail system misconfiguration somewhere. Please contact owner@bugs.debian.org immediately.) -- 805044: http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=805044 Debian Bug Tracking System Contact owner@bugs.debian.org with problems
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- To: Debian Bug Tracking System <submit@bugs.debian.org>
- Subject: gcc-4.9: the option -ftree-vectorizer-verbose does not work
- From: A Mennucc <mennucc1@debian.org>
- Date: Fri, 13 Nov 2015 19:56:24 +0100
- Message-id: <[🔎] 20151113185624.GA5590@mennucc1.debian.net>
Package: gcc-4.9 Version: 4.9.2-10 Severity: minor dear mantainers, the option -ftree-vectorizer-verbose does not print anything. Consider the code in attachment Try compiling it with the command # gcc -Ofast -ftree-vectorizer-verbose=6 --std=c99 -msse -c vectorizeme.c I tried in Debian/Wheezy, gcc --version -> gcc (Debian 4.7.2-5) 4.7.2 and it prints lotsa useful info. I tried in Debian/Jessi, version as below, and nothing is printed.... It is a pity since -ftree-vectorizer-verbose helped me in the past optimizing some code, providing impressive speedups. a. ps: I copy pasted the attachment from https://gcc.gnu.org/bugzilla/show_bug.cgi?id=50680 that though is a different kind of bug... -- System Information: Debian Release: 8.2 APT prefers stable APT policy: (500, 'stable') Architecture: amd64 (x86_64) Foreign Architectures: i386 Kernel: Linux 3.16-2-amd64 (SMP w/2 CPU cores) Locale: LANG=it_IT.UTF-8, LC_CTYPE=it_IT.UTF-8 (charmap=UTF-8) Shell: /bin/sh linked to /bin/dash Init: systemd (via /run/systemd/system) Versions of packages gcc-4.9 depends on: ii binutils 2.25-5 ii cpp-4.9 4.9.2-10 ii gcc-4.9-base 4.9.2-10 ii libc6 2.19-18+deb8u1 ii libcloog-isl4 0.18.2-1+b2 ii libgcc-4.9-dev 4.9.2-10 ii libgmp10 2:6.0.0+dfsg-6 ii libisl10 0.12.2-2 ii libmpc3 1.0.2-1 ii libmpfr4 3.1.2-2 ii zlib1g 1:1.2.8.dfsg-2+b1 Versions of packages gcc-4.9 recommends: ii libc6-dev 2.19-18+deb8u1 Versions of packages gcc-4.9 suggests: pn gcc-4.9-doc <none> pn gcc-4.9-locales <none> pn gcc-4.9-multilib <none> pn libasan1-dbg <none> pn libatomic1-dbg <none> pn libcilkrts5-dbg <none> pn libgcc1-dbg <none> pn libgomp1-dbg <none> pn libitm1-dbg <none> pn liblsan0-dbg <none> pn libquadmath0-dbg <none> pn libtsan0-dbg <none> pn libubsan0-dbg <none> -- no debconf information -- Andrea Mennucc "E' un mondo difficile. Che vita intensa!" (Tonino Carotone)float * __restrict__ x; float * __restrict__ y; float * __restrict__ z; float v1[4],v2[4],v3[4]; struct A { float a[4]; }; struct A a1, a2, a3; void foo () { float * __restrict__ pin = &x[0]; float * __restrict__ pout =&y[0]; *pout++ = *pin++; *pout++ = *pin++; *pout++ = *pin++; *pout++ = *pin++; } void voo() { float * __restrict__ pin = &v1[0]; float * __restrict__ pout =&v2[0]; *pout++ = *pin++; *pout++ = *pin++; *pout++ = *pin++; *pout++ = *pin++; } void aoo() { float * __restrict__ pin = &a1.a[0]; float * __restrict__ pout =&a2.a[0]; *pout++ = *pin++; *pout++ = *pin++; *pout++ = *pin++; *pout++ = *pin++; } void loop() { for (int i=0;i!=4;++i) x[i]=y[i]+z[i]; } void voop() { for (int i=0;i!=4;++i) v1[i]=v2[i]+v3[i]; } void aoop() { for (int i=0;i!=4;++i) a1.a[i]=a2.a[i]+a3.a[i]; }Attachment: signature.asc
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--- Begin Message ---
- To: 805044-done@bugs.debian.org
- Cc: A Mennucc <mennucc1@debian.org>
- Subject: Re: Bug#805044: gcc-4.9: the option -ftree-vectorizer-verbose does not work
- From: Matthias Klose <doko@debian.org>
- Date: Fri, 27 Nov 2015 15:39:27 +0100
- Message-id: <56586B1F.6020400@debian.org>
- In-reply-to: <[🔎] 5657BA07.6090005@debian.org>
- References: <[🔎] 20151113185624.GA5590@mennucc1.debian.net> <[🔎] 5657BA07.6090005@debian.org>
On 27.11.2015 03:03, Matthias Klose wrote:Control: forwarded -1 https://gcc.gnu.org/PR68573 Control: tags -1 + upstreamDoes nothing. Preserved for backward compatibility. Works as designed. Use -fopt-info-vec.
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