[Bug target/51134] [4.7 Regression] x86 memset/memcpy expansion is broken

[hjl.tools at gmail dot com]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=51134

--- Comment #6 from H.J. Lu <hjl.tools at gmail dot com> 2011-11-16 01:56:08 
UTC ---
On Linux/ia32, If you configure GCC with

--with-arch=core2 --with-cpu=atom

you will get

bin/sh ../../src-trunk/gcc/../move-if-change tmp-check.h tree-check.h
*** glibc detected *** build/gengtype: malloc(): memory corruption: 0x09561138
***

and it hangs forever.