public inbox for gcc-bugs@sourceware.org help / color / mirror / Atom feed
* [Bug target/46378] New: Powerpc -mcpu=power5 selects FP found instructions (should use -mcpu=power5+)
@ 2010-11-08 18:59 meissner at gcc dot gnu.org
2010-11-08 19:01 ` [Bug target/46378] " meissner at gcc dot gnu.org
` (3 more replies)
0 siblings, 4 replies; 5+ messages in thread
From: meissner at gcc dot gnu.org @ 2010-11-08 18:59 UTC (permalink / raw)
To: gcc-bugs
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=46378
Summary: Powerpc -mcpu=power5 selects FP found instructions
(should use -mcpu=power5+)
Product: gcc
Version: 4.6.0
Status: UNCONFIRMED
Severity: normal
Priority: P3
Component: target
AssignedTo: unassigned@gcc.gnu.org
ReportedBy: meissner@gcc.gnu.org
Created attachment 22335
--> http://gcc.gnu.org/bugzilla/attachment.cgi?id=22335
Patch to fix the problem.
In my change on August 23rd, 2010 and September 2nd, 2010, I mistakenly enabled
the floating round instructions (-mfprnd) for -mcpu=power5 (ISA 2.02), while
these instructions weren't added until later (ISA 2.04, or -mcpu=power5+). The
-mcpu=power5 option should not enable the floating point round instructions.
^ permalink raw reply [flat|nested] 5+ messages in thread* [Bug target/46378] Powerpc -mcpu=power5 selects FP found instructions (should use -mcpu=power5+) 2010-11-08 18:59 [Bug target/46378] New: Powerpc -mcpu=power5 selects FP found instructions (should use -mcpu=power5+) meissner at gcc dot gnu.org @ 2010-11-08 19:01 ` meissner at gcc dot gnu.org 2010-11-08 19:02 ` meissner at gcc dot gnu.org ` (2 subsequent siblings) 3 siblings, 0 replies; 5+ messages in thread From: meissner at gcc dot gnu.org @ 2010-11-08 19:01 UTC (permalink / raw) To: gcc-bugs http://gcc.gnu.org/bugzilla/show_bug.cgi?id=46378 Michael Meissner <meissner at gcc dot gnu.org> changed: What |Removed |Added ---------------------------------------------------------------------------- Status|UNCONFIRMED |ASSIGNED Last reconfirmed| |2010.11.08 19:00:52 AssignedTo|unassigned at gcc dot |meissner at gcc dot gnu.org |gnu.org | Ever Confirmed|0 |1 ^ permalink raw reply [flat|nested] 5+ messages in thread
* [Bug target/46378] Powerpc -mcpu=power5 selects FP found instructions (should use -mcpu=power5+) 2010-11-08 18:59 [Bug target/46378] New: Powerpc -mcpu=power5 selects FP found instructions (should use -mcpu=power5+) meissner at gcc dot gnu.org 2010-11-08 19:01 ` [Bug target/46378] " meissner at gcc dot gnu.org @ 2010-11-08 19:02 ` meissner at gcc dot gnu.org 2010-11-08 19:03 ` meissner at gcc dot gnu.org 2010-11-16 0:50 ` meissner at gcc dot gnu.org 3 siblings, 0 replies; 5+ messages in thread From: meissner at gcc dot gnu.org @ 2010-11-08 19:02 UTC (permalink / raw) To: gcc-bugs http://gcc.gnu.org/bugzilla/show_bug.cgi?id=46378 --- Comment #1 from Michael Meissner <meissner at gcc dot gnu.org> 2010-11-08 19:02:40 UTC --- Author: meissner Date: Mon Nov 8 19:02:35 2010 New Revision: 166448 URL: http://gcc.gnu.org/viewcvs?root=gcc&view=rev&rev=166448 Log: Fix PR 46378 and PR 45585 Modified: trunk/gcc/ChangeLog trunk/gcc/config/rs6000/darwin.md trunk/gcc/config/rs6000/rs6000.c trunk/gcc/config/rs6000/rs6000.md ^ permalink raw reply [flat|nested] 5+ messages in thread
* [Bug target/46378] Powerpc -mcpu=power5 selects FP found instructions (should use -mcpu=power5+) 2010-11-08 18:59 [Bug target/46378] New: Powerpc -mcpu=power5 selects FP found instructions (should use -mcpu=power5+) meissner at gcc dot gnu.org 2010-11-08 19:01 ` [Bug target/46378] " meissner at gcc dot gnu.org 2010-11-08 19:02 ` meissner at gcc dot gnu.org @ 2010-11-08 19:03 ` meissner at gcc dot gnu.org 2010-11-16 0:50 ` meissner at gcc dot gnu.org 3 siblings, 0 replies; 5+ messages in thread From: meissner at gcc dot gnu.org @ 2010-11-08 19:03 UTC (permalink / raw) To: gcc-bugs http://gcc.gnu.org/bugzilla/show_bug.cgi?id=46378 Michael Meissner <meissner at gcc dot gnu.org> changed: What |Removed |Added ---------------------------------------------------------------------------- Status|ASSIGNED |RESOLVED Resolution| |FIXED --- Comment #2 from Michael Meissner <meissner at gcc dot gnu.org> 2010-11-08 19:03:35 UTC --- Fixed in subversion revision: 166448. ^ permalink raw reply [flat|nested] 5+ messages in thread
* [Bug target/46378] Powerpc -mcpu=power5 selects FP found instructions (should use -mcpu=power5+) 2010-11-08 18:59 [Bug target/46378] New: Powerpc -mcpu=power5 selects FP found instructions (should use -mcpu=power5+) meissner at gcc dot gnu.org ` (2 preceding siblings ...) 2010-11-08 19:03 ` meissner at gcc dot gnu.org @ 2010-11-16 0:50 ` meissner at gcc dot gnu.org 3 siblings, 0 replies; 5+ messages in thread From: meissner at gcc dot gnu.org @ 2010-11-16 0:50 UTC (permalink / raw) To: gcc-bugs http://gcc.gnu.org/bugzilla/show_bug.cgi?id=46378 --- Comment #3 from Michael Meissner <meissner at gcc dot gnu.org> 2010-11-16 00:41:32 UTC --- Author: meissner Date: Tue Nov 16 00:41:29 2010 New Revision: 166787 URL: http://gcc.gnu.org/viewcvs?root=gcc&view=rev&rev=166787 Log: Backport PR 46378, 45585 changes, and import vsx_hw/ppc_recip_hw changes from testsuite Modified: branches/ibm/gcc-4_5-branch/gcc/ChangeLog.ibm branches/ibm/gcc-4_5-branch/gcc/config/rs6000/darwin.md branches/ibm/gcc-4_5-branch/gcc/config/rs6000/rs6000.c branches/ibm/gcc-4_5-branch/gcc/config/rs6000/rs6000.md branches/ibm/gcc-4_5-branch/gcc/testsuite/ChangeLog.ibm branches/ibm/gcc-4_5-branch/gcc/testsuite/gcc.target/powerpc/ppc-fpconv-11.c branches/ibm/gcc-4_5-branch/gcc/testsuite/lib/target-supports.exp ^ permalink raw reply [flat|nested] 5+ messages in thread
end of thread, other threads:[~2010-11-16 0:42 UTC | newest] Thread overview: 5+ messages (download: mbox.gz / follow: Atom feed) -- links below jump to the message on this page -- 2010-11-08 18:59 [Bug target/46378] New: Powerpc -mcpu=power5 selects FP found instructions (should use -mcpu=power5+) meissner at gcc dot gnu.org 2010-11-08 19:01 ` [Bug target/46378] " meissner at gcc dot gnu.org 2010-11-08 19:02 ` meissner at gcc dot gnu.org 2010-11-08 19:03 ` meissner at gcc dot gnu.org 2010-11-16 0:50 ` meissner at gcc dot gnu.org
This is a public inbox, see mirroring instructions for how to clone and mirror all data and code used for this inbox; as well as URLs for read-only IMAP folder(s) and NNTP newsgroup(s).