ICE on gcc 4.0.0rc2, but both 3.3.5 and 3.4.3 work.
$ /usr/local/gcc-4.0/bin/g++ -c -O2 -funroll-loops -march=pentium4 3.cpp
3.cpp: In function 'void f()':
3.cpp:29: error: could not find a spill register
(insn:HI 95 94 96 0 (set (reg:V4HI 29 mm0 [orig:115 D.2920 ] [115])
(vec_duplicate:V4HI (truncate:HI (subreg:SI (reg:HI 111 [ B ]) 0)))) 817
{*vec_dupv4hi} (insn_list:REG_DEP_TRUE 88 (nil))
(expr_list:REG_DEAD (reg:HI 111 [ B ])
(nil)))
3.cpp:29: internal compiler error: in failed_reload, at reload1.c:4982
--
Summary: ICE: could not find a spill register on MMX intrinsics
Product: gcc
Version: 4.0.0
Status: UNCONFIRMED
Severity: normal
Priority: P2
Component: target
AssignedTo: unassigned at gcc dot gnu dot org
ReportedBy: jochang at gmail dot com
CC: gcc-bugs at gcc dot gnu dot org
GCC build triplet: i686-pc-linux-gnu
GCC host triplet: i686-pc-linux-gnu
GCC target triplet: i686-pc-linux-gnu
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=21101
