Thank you for the bug report. I've confirmed this with gcc-
linaro-4.5-2011.06-0 on x86_64 in 32 bit mode:
michaelh@crucis:~/linaro/bugs$
~/linaro/toolchains/gcc-linaro-4.5-2011.06-0-x86_64-maverick-cbuild130-crucis-x86_64r1/bin/g++
-c -O2 -m32 -g -march=prescott -mtune=prescott asn.ii
asn.cpp: In member function ‘void
CryptoPP::OID::DEREncode(CryptoPP::BufferedTransformation&) const’:
asn.cpp:254:1: error: unrecognizable insn:
(insn 178 162 179 2 asn.cpp:248 (set (reg:SI 2 cx)
(mem:QI (plus:SI (reg/f:SI 1 dx [orig:60 D.44160 ] [60])
(const_int 4 [0x4])) [16 S1 A32])) -1 (nil))
asn.cpp:254:1: internal compiler error: in extract_insn, at recog.c:2110
The work around is to compile without -march=prescot. The fault was
introduced in gcc-linaro-4.5-2011.03-0. It does not exist in gcc-
linaro-4.6-2011.06-0, gcc 4.5, gcc 4.6, or gcc trunk r176133.
I've set it to medium priority as it is a ftbfs and has a work around.
** Also affects: gcc-linaro
Importance: Undecided
Status: New
** Changed in: gcc-linaro
Status: New => Triaged
** Changed in: gcc-linaro
Importance: Undecided => Medium
** Also affects: gcc-linaro/4.5
Importance: Medium
Status: Triaged
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https://bugs.launchpad.net/bugs/807156
Title:
GCC (g++):internal compiler error: in extract_insn, at recog.c:2104
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