[Bug target/53040] nested functions may trash floating point registers
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=53040 Eric Botcazou ebotcazou at gcc dot gnu.org changed: What|Removed |Added CC||ebotcazou at gcc dot ||gnu.org --- Comment #5 from Eric Botcazou ebotcazou at gcc dot gnu.org 2013-02-06 11:49:59 UTC --- Can you reconsider? If that's an obvious fix for an annoying target problem, then it should be put at least on the 4.7 branch. There are plenty of precedents for other targets (x86, SPARC, ARM, etc).
[Bug target/53040] nested functions may trash floating point registers
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=53040 --- Comment #6 from Alan Modra amodra at gmail dot com 2013-02-06 13:31:45 UTC --- This one is hardly an annoying bug. You need a) nested functions, b) using floating point, c) with an unusual set of callee saved fprs, d) and -Os. I found the bug only because I wrote a fairly complete test for prologue/epilogue code. OTOH, the patch is quite obvious and completely safe..
[Bug target/53040] nested functions may trash floating point registers
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=53040 --- Comment #7 from Eric Botcazou ebotcazou at gcc dot gnu.org 2013-02-06 16:45:44 UTC --- This one is hardly an annoying bug. You need a) nested functions, b) using floating point, c) with an unusual set of callee saved fprs, d) and -Os. a) + b) + d) is pretty much standard e.g. for embedded Ada on PowerPC/VxWorks. OTOH, the patch is quite obvious and completely safe.. Then I think it's a good candidate for a backport onto the 4.7 branch.
[Bug target/53040] nested functions may trash floating point registers
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=53040 David Edelsohn dje at gcc dot gnu.org changed: What|Removed |Added CC||dje at gcc dot gnu.org --- Comment #8 from David Edelsohn dje at gcc dot gnu.org 2013-02-06 22:25:21 UTC --- Go ahead and backport it to 4.7 branch.
[Bug target/53040] nested functions may trash floating point registers
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=53040 --- Comment #9 from Alan Modra amodra at gcc dot gnu.org 2013-02-07 01:39:29 UTC --- Author: amodra Date: Thu Feb 7 01:39:21 2013 New Revision: 195834 URL: http://gcc.gnu.org/viewcvs?root=gccview=revrev=195834 Log: PR target/53040 * config/rs6000/rs6000.c (rs6000_savres_strategy): When using static chain, set REST_INLINE_FPRS too. Modified: branches/gcc-4_7-branch/gcc/ChangeLog branches/gcc-4_7-branch/gcc/config/rs6000/rs6000.c
[Bug target/53040] nested functions may trash floating point registers
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=53040 Alan Modra amodra at gmail dot com changed: What|Removed |Added Status|ASSIGNED|RESOLVED Resolution||FIXED --- Comment #3 from Alan Modra amodra at gmail dot com 2013-02-06 02:39:54 UTC --- Fixed. Not a regression so not applying to FSF branches.
[Bug target/53040] nested functions may trash floating point registers
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=53040 --- Comment #4 from Alan Modra amodra at gcc dot gnu.org 2013-02-06 02:46:24 UTC --- Author: amodra Date: Wed Feb 6 02:46:13 2013 New Revision: 195778 URL: http://gcc.gnu.org/viewcvs?root=gccview=revrev=195778 Log: PR target/53040 * config/rs6000/rs6000.c (rs6000_savres_strategy): When using static chain, set REST_INLINE_FPRS too. Modified: branches/ibm/gcc-4_7-branch/gcc/ChangeLog.ibm branches/ibm/gcc-4_7-branch/gcc/config/rs6000/rs6000.c
[Bug target/53040] nested functions may trash floating point registers
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=53040 --- Comment #2 from Alan Modra amodra at gcc dot gnu.org 2012-04-20 09:33:23 UTC --- Author: amodra Date: Fri Apr 20 09:33:19 2012 New Revision: 186616 URL: http://gcc.gnu.org/viewcvs?root=gccview=revrev=186616 Log: PR target/53040 * config/rs6000/rs6000.c (rs6000_savres_strategy): When using static chain, set REST_INLINE_FPRS too. Modified: trunk/gcc/ChangeLog trunk/gcc/config/rs6000/rs6000.c
[Bug target/53040] nested functions may trash floating point registers
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=53040 --- Comment #1 from Alan Modra amodra at gmail dot com 2012-04-19 15:24:30 UTC --- Created attachment 27191 -- http://gcc.gnu.org/bugzilla/attachment.cgi?id=27191 obvious fix
[Bug target/53040] nested functions may trash floating point registers
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=53040 Alan Modra amodra at gmail dot com changed: What|Removed |Added Status|UNCONFIRMED |ASSIGNED Last reconfirmed||2012-04-19 Ever Confirmed|0 |1
