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** Changed in: gcc-linaro
Status: Fix Committed = Fix Released
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Title:
[ARMhf] gcc produces assembler it can't compile
To manage
** Also affects: gcc via
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=52294
Importance: Unknown
Status: Unknown
** Changed in: gcc-linaro
Status: In Progress = Fix Committed
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Assigning to Andrew as it will be picked up with the next merge.
** Changed in: gcc-linaro
Status: Triaged = In Progress
** Changed in: gcc-linaro
Assignee: (unassigned) = Andrew Stubbs (ams-codesourcery)
** Changed in: gcc-linaro
Milestone: None = 4.6-2012.03
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I can confirm 4.6.2-16ubuntu1, uploaded Thu, 23 Feb 2012 19:39:11 +0100
fixes the problem : I can compile sage without compiler problems!
Thanks!
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This ticket appears to be the same as:
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=52294.
a case where gcc generates a cbz instruction that ends up trying to reach too
far.
Attaching the assembly file mp.s generated with:
asa-san@ursa4:~/bugs/mp$
fixed in 4.6.2-16ubuntu1
** Changed in: gcc-4.6 (Ubuntu)
Status: Confirmed = Fix Released
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Title:
[ARMhf] gcc produces assembler it can't
Hi Michael,
I cant' find any
asm
chunks in there.
(Only in some external declarations.)
Can it look any other way?
/Åsa
On 15 February 2012 22:39, Michael Hope 926...@bugs.launchpad.net
wrote:
Asa, does the code contain any inline assembly? GCC estimates the size
of each instruction and
Asa, does the code contain any inline assembly? GCC estimates the size
of each instruction and uses that to decide if it can use a short or a
long branch. Long chunks of inline assembly can break that and make it
think the code is shorter than it is.
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Thank you for the bug report. I've confirmed this with gcc-
linaro-4.6-2012.01 on ARM:
asa-san@ursa4:~/bugs/mp$
/scratch/asa-san/cbuild/slaves/ursa4/gcc-linaro-4.6-2012.01/gcc-binary/bin/gcc
-c -o mp.o mp.c -O3 -funroll-loops
/tmp/ccv0lfQ5.s: Assembler messages:
/tmp/ccv0lfQ5.s:116: Error:
** Tags added: armel armhf precise
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Title:
[ARMhf] gcc produces assembler it can't compile
To manage notifications about this bug go to:
I can reproduce this on precise (armel armhf).
ubuntu@panda2:~/test$ gcc -c -o mp.o mp.c -O3 -funroll-loops
/tmp/ccSVzO5N.s: Assembler messages:
/tmp/ccSVzO5N.s:202: Error: branch out of range
/tmp/ccSVzO5N.s:4145: Error: branch out of range
ubuntu@panda2:~/test$ gcc -c -o mp.o mp.c -O3
** Also affects: gcc-linaro
Importance: Undecided
Status: New
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Title:
[ARMhf] gcc produces assembler it can't compile
To manage
** Attachment added: Example problematic file
https://bugs.launchpad.net/bugs/926855/+attachment/2714685/+files/mp.c
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Title:
[ARMhf] gcc
The file compiles with -O3 -funroll-loops -marm (someone suggested I
try)
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Title:
[ARMhf] gcc produces assembler it can't compile
To manage
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