Public bug reported:
see https://launchpad.net/ubuntu/+archive/test-
rebuild-20120922/+build/3821082
works with 4.6, fails with 4.7 (both fsf and linaro)
$ g++-4.7 -c -g cluster.ii cluster.cc: In member function 'bool
rpc::node::set_role(rpc::role_type)':
cluster.cc:88:1: error: unrecognizable insn:
(insn 16 15 17 3 (parallel [
(set (reg:CC_Z 24 cc)
(unspec_volatile:CC_Z [
(const_int 0 [0])
] VUNSPEC_ATOMIC_CAS))
(set (reg:SI 146)
(zero_extend:SI (mem/v:HI (reg/f:SI 134 [ D.146641 ]) [-1 S2
A16])))
(set (mem/v:HI (reg/f:SI 134 [ D.146641 ]) [-1 S2 A16])
(unspec_volatile:HI [
(reg:HI 147)
(subreg/s/u:HI (reg:SI 135 [ D.146642 ]) 0)
(const_int 0 [0])
(const_int 5 [0x5])
(const_int 5 [0x5])
] VUNSPEC_ATOMIC_CAS))
(clobber (scratch:SI))
]) cluster.cc:87 -1
(nil))
cluster.cc:88:1: internal compiler error: in extract_insn, at recog.c:2123
Please submit a full bug report,
with preprocessed source if appropriate.
** Affects: gcc
Importance: Unknown
Status: Unknown
** Affects: gcc-linaro
Importance: Undecided
Status: New
** Affects: gcc-4.7 (Ubuntu)
Importance: Undecided
Status: New
** Affects: kumofs (Ubuntu)
Importance: High
Status: Confirmed
** Tags: ftbfs
** Attachment added: "cluster.ii.xz"
https://bugs.launchpad.net/bugs/1065122/+attachment/3393182/+files/cluster.ii.xz
** Changed in: kumofs (Ubuntu)
Status: New => Confirmed
** Changed in: kumofs (Ubuntu)
Importance: Undecided => High
** Also affects: gcc-4.7 (Ubuntu)
Importance: Undecided
Status: New
** Also affects: gcc-linaro
Importance: Undecided
Status: New
** Bug watch added: GCC Bugzilla #54892
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=54892
** Also affects: gcc via
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=54892
Importance: Unknown
Status: Unknown
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https://bugs.launchpad.net/bugs/1065122
Title:
kumofs ftbfs on armhf (gcc ICE)
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