[armel] gfortran ICE with armv7, armv5t and armv6 do work

seen as well with 4.5 and trunk

gcc-snapshot on debian doesn't ice with -march=armv7-a

This bug was fixed in the package fbasics - 2110.79-1ubuntu1

---------------
fbasics (2110.79-1ubuntu1) maverick; urgency=low

  * Work around gfortran ICE on armel, build with -march=armv6. LP: #642043.
 -- Matthias Klose <email address hidden> Sat, 18 Sep 2010 15:54:14 +0200

reopening the fbasics task, built in arm mode

A reduced C testcase that hits the same ICE on mainline trunk under -O1

ICE with the reduced C test case using -O1 is still reproducible for me with current gcc-4.5-arm-linux-gnueabi in natty.

Confirmed in gcc-linaro-4.5-2011.02-0:

michaelh@ursa1:~/linaro/bugs$ /tools/toolchains/gcc-linaro-4.5-2011.02-0-armv7l-maverick-cbuild46-pavo3-cortexa8r1/bin/gcc -O1 -S testcase.c
testcase.c: In function 'foo':
testcase.c:12:1: internal compiler error: in arm_select_dominance_cc_mode, at config/arm/arm.c:10528
Please submit a full bug report,
with preprocessed source if appropriate.
See <http://gcc.gnu.org/bugs.html> for instructions.

Note that it only happens at -O1.

Seems to compile OK for me with bzr rev 99485 (4.5-2011.03-0)

Dave

Still fails for me in 4.5-2011.03-0:

michaelh@ursa1:~/linaro/bugs$ /tools/toolchains/gcc-linaro-4.5-2011.03-0-armv7l-maverick-cbuild71-carina7-cortexa8r1/bin/gcc -O1 -S testcase.c
testcase.c: In function 'foo':
testcase.c:12:1: internal compiler error: in arm_select_dominance_cc_mode, at config/arm/arm.c:10799
Please submit a full bug report,
with preprocessed source if appropriate.
See <http://gcc.gnu.org/bugs.html> for instructions.

Agreed, still fails - not sure what I did last time; (bzr 99489).

Dave

Still fails in gcc-linaro-4.5-2011.05-0:

michaelh@ursa1:~/linaro/bugs$ /scratch/michaelh/toolchains/gcc-linaro-4.5-2011.05-0-armv7l-maverick-cbuild114-ursa4-cortexa8r1/bin/gcc -O1 -S testcase.c
testcase.c: In function 'foo':
testcase.c:12:1: internal compiler error: in arm_select_dominance_cc_mode, at config/arm/arm.c:10846

Also fails in trunk r174795 (and every other build that I have...)

(recheck after the fix to LP:823708 goes in)

Fails with gcc-linaro-4.6+bzr106798~rsandifo~lp823708-4.6.

This bug was fixed in the package fbasics - 2110.79-1ubuntu2

---------------
fbasics (2110.79-1ubuntu2) precise; urgency=low

  * Work around gfortran ICE on ARM, build with -march=armv6. LP: #642043.
 -- Matthias Klose <email address hidden> Sat, 10 Dec 2011 15:06:39 +0100

and seen with gcc-4.7

$ gcc-4.7 -c -O1 testcase.c
testcase.c: In function 'foo':
testcase.c:12:1: internal compiler error: in arm_select_dominance_cc_mode, at config/arm/arm.c:11544
Please submit a full bug report,
with preprocessed source if appropriate.

won't fix anymore for 4.4 and 4.5

Fixed in Linaro's releases