http://gcc.gnu.org/bugzilla/show_bug.cgi?id=41082
--- Comment #61 from Jakub Jelinek jakub at gcc dot gnu.org 2010-12-07
22:07:59 UTC ---
I've managed to massage both -O3 -m64 -mtune={rs64,power4} darwin assembly into
ppc64-linux assembly.
Before DSE2 we have:
(insn 460 483 925 33 (set (reg:CC
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=41082
--- Comment #59 from Jakub Jelinek jakub at gcc dot gnu.org 2010-11-27
17:51:38 UTC ---
Can you please try latest trunk, if the test works with -O3 -m64 -mtune=rs64
and fails with -O3 -m64 -mtune=power4 ?
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=41082
--- Comment #60 from Dominique d'Humieres dominiq at lps dot ens.fr
2010-11-27 21:49:28 UTC ---
Can you please try latest trunk, if the test works with -O3 -m64 -mtune=rs64
and fails with -O3 -m64 -mtune=power4 ?
Confirmed, but I have no idea
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=41082
Jakub Jelinek jakub at gcc dot gnu.org changed:
What|Removed |Added
CC||jakub at gcc dot
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=41082
--- Comment #55 from Dominique d'Humieres dominiq at lps dot ens.fr
2010-11-26 15:48:44 UTC ---
Perhaps try to build with r166946 and r166947 the testcase with
-fdump-tree-all
-fdump-rtl-all, see where the dumps start diverging and what is
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=41082
--- Comment #56 from Jakub Jelinek jakub at gcc dot gnu.org 2010-11-26
16:20:18 UTC ---
That is an unimportant difference. It is fine if a different uid is used, as
long as it used consistently through the whole source.
You can
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=41082
--- Comment #57 from Dominique d'Humieres dominiq at lps dot ens.fr
2010-11-26 16:54:08 UTC ---
That is an unimportant difference. It is fine if a different uid is used, as
long as it used consistently through the whole source.
I understand,
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=41082
--- Comment #58 from Jakub Jelinek jakub at gcc dot gnu.org 2010-11-26
17:34:23 UTC ---
At least in my cross it seems the r166947 commit just changed default tuning
for -m64, from -mtune=power4 to -mtune=rs64. Not sure if it was intentional or
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=41082
Dominique d'Humieres dominiq at lps dot ens.fr changed:
What|Removed |Added
CC||meissner
--- Comment #52 from dominiq at lps dot ens dot fr 2010-08-06 07:33 ---
The miscompilation with -m64 is back at revision 162879.
--
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=41082
--- Comment #51 from rguenth at gcc dot gnu dot org 2010-07-31 09:29
---
GCC 4.5.1 is being released, adjusting target milestone.
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rguenth at gcc dot gnu dot org changed:
What|Removed |Added
--- Comment #50 from dominiq at lps dot ens dot fr 2010-07-25 10:20 ---
Between revisions 162269 and 162477 this pr has been fixed for -m64 (but not
for -m32).
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http://gcc.gnu.org/bugzilla/show_bug.cgi?id=41082
--- Comment #49 from dominiq at lps dot ens dot fr 2010-05-14 09:28 ---
Any news on this?
Still there at revision 159329. Ira Rosen has devoted a fair amount of time to
trace the problem, but nobody cared to pursue.
Presently this PR has nothing to do with -g nor -ma64, so I updated
--- Comment #48 from tkoenig at gcc dot gnu dot org 2010-05-13 18:04
---
Any news on this?
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tkoenig at gcc dot gnu dot org changed:
What|Removed |Added
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