[Bug target/109140] ICE (during RTL pass: internal compiler error: in extract_insn, at recog.cc:2791) when building qemu on sparc64-unknown-linux-gnu with -march=niagara4

[mikpelinux at gmail dot com via Gcc-bugs]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=109140

--- Comment #10 from Mikael Pettersson <mikpelinux at gmail dot com> ---
A bisect between 4.6.4 (good) and 4.7.4 (bad) found:

1f9ed162eb30f1b40b65d164b3a40ac78e1f006e is the first bad commit
commit 1f9ed162eb30f1b40b65d164b3a40ac78e1f006e
Author: David S. Miller <da...@davemloft.net>
Date:   Tue Nov 1 08:42:57 2011 +0000

    Add vcond/vcondu patterns to sparc backend.

If I disable the "vconduv8qiv8qi" expander this test case doesn't cause an ICE.