[Bug target/48326] Target attribute leaks from function pointers
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=48326 Andrew Pinski changed: What|Removed |Added Resolution|FIXED |DUPLICATE --- Comment #8 from Andrew Pinski --- Dup of bug 53228. *** This bug has been marked as a duplicate of bug 53228 ***
[Bug target/48326] Target attribute leaks from function pointers
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=48326 Andrew Pinski changed: What|Removed |Added Target Milestone|--- |4.7.0 Resolution|--- |FIXED Status|NEW |RESOLVED --- Comment #7 from Andrew Pinski --- Fixed.
[Bug target/48326] Target attribute leaks from function pointers
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=48326 --- Comment #6 from joseph at codesourcery dot com joseph at codesourcery dot com --- On Fri, 1 Nov 2013, michael at talamasca dot ocis.net wrote: Do I have to file a separate bug report in order to fix the problem that current GCC releases can't be expected to bootstrap up if the starting compiler is GCC 4.7.0 (among several other problem releases) and the host hardware is ix86 with no cmov? Please do. Such a bug report would be a request for libcpp to work around known buggy bootstrap compilers, which is completely separate from the present report about the actual bug in those compilers. (Or test and send to gcc-patches a patch with the change you suggest; a one-line fix like that doesn't need a copyright assignment.)
[Bug target/48326] Target attribute leaks from function pointers
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=48326 --- Comment #5 from michael at talamasca dot ocis.net michael at talamasca dot ocis.net --- Do I have to file a separate bug report in order to fix the problem that current GCC releases can't be expected to bootstrap up if the starting compiler is GCC 4.7.0 (among several other problem releases) and the host hardware is ix86 with no cmov? If the breakage was due to 4.7.0 miscompiling standard C, I could see why you would write it off. It's not practical to be portable to every known standards violation. But this is a breakage in code that uses GCC extensions and is preprocessed out for non-GCC compilers. It should be preprocessed out for = 4.7.0 as well.
[Bug target/48326] Target attribute leaks from function pointers
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=48326 --- Comment #3 from Mikael Pettersson mikpe at it dot uu.se 2013-03-30 11:59:19 UTC --- I can reproduce the initial bug with gcc 4.4.7, 4.5.3, 4.6.3, and 4.7.0, but not with 4.5.4, 4.6-20130322, 4.7.1, or 4.7.2.
[Bug target/48326] Target attribute leaks from function pointers
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=48326 --- Comment #4 from Mikael Pettersson mikpe at it dot uu.se 2013-03-30 12:31:38 UTC --- The initial bug was fixed by r187169 on 4.7 branch, I'd say it's clearly a dup of PR53228.
[Bug target/48326] Target attribute leaks from function pointers
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=48326 --- Comment #2 from michael at talamasca dot ocis.net michael at talamasca dot ocis.net 2013-03-30 00:26:53 UTC --- The bug itself seems to have been silently fixed in 4.7.2 or earlier, maybe. My testcase no longer causes cmov to be emitted, although this could be an accidental side effect of other changes. However, there is a related bug that is definitely still present. I noticed the first bug because GCC itself is also an example of code that triggers it. This means that modern versions of GCC may fail to bootstrap themselves from older GCCs that have the original bug. Fixing this second bug is fairly simple, changing the ifdef that controls SSE use in libcpp/lex.c to require GCC_VERSION = 4008 instead of 4005. (The exact value is not certain, but it must at least be 4007 since 4.6.0 is known to have the bug.) It would be a good idea to fix this in 4.7.3. As the last version compilable from C alone, it will be a likely intermediate stop for anyone trying to bootstrap up from an ancient GCC installation.
[Bug target/48326] Target attribute leaks from function pointers
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=48326 Andrew Pinski pinskia at gcc dot gnu.org changed: What|Removed |Added Component|c |target Severity|major |normal
[Bug target/48326] Target attribute leaks from function pointers
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=48326 Richard Guenther rguenth at gcc dot gnu.org changed: What|Removed |Added Keywords||wrong-code Status|UNCONFIRMED |NEW Last reconfirmed||2011.03.29 10:23:10 Ever Confirmed|0 |1 Known to fail||4.4.4, 4.5.2, 4.6.0 --- Comment #1 from Richard Guenther rguenth at gcc dot gnu.org 2011-03-29 10:23:10 UTC --- Confirmed.
