Description of problem:

"g++ -S foo.cpp" ->

ma2.cpp: In function âvoid madd(float4*)â:
ma2.cpp:8: internal compiler error: in emit_move_insn, at expr.c:3092
Please submit a full bug report,
with preprocessed source if appropriate.
See <URL:http://bugzilla.redhat.com/bugzilla> for instructions.
Preprocessed source stored into /tmp/ccchT4xI.out file, please attach this to y\
our bugreport.


Version-Release number of selected component (if applicable):

]$ gcc -v
Using built-in specs.
Target: i386-redhat-linux
Configured with: ../configure --prefix=/usr --mandir=/usr/share/man
--infodir=/usr/share/info --enable-shared --enable-threads=posix
--enable-checking=release --with-system-zlib --enable-__cxa_atexit
--disable-libunwind-exceptions --enable-libgcj-multifile
--enable-languages=c,c++,objc,java,f95,ada --enable-java-awt=gtk
--with-java-home=/usr/lib/jvm/java-1.4.2-gcj-1.4.2.0/jre --host=i386-redhat-linux
Thread model: posix
gcc version 4.0.2 20051125 (Red Hat 4.0.2-8)

How reproducible:

100%

Steps to Reproduce:
1. gcc -S
2.
3.
  
Actual results:

as above

Expected results:

Might be operand constraint errors, etc., but would expect to either complain or
produce asm.


Additional info:

Preprocessed source:

// /usr/libexec/gcc/i386-redhat-linux/4.0.2/cc1plus -quiet -D_GNU_SOURCE ma2.cpp
-quiet -dumpbase ma2.cpp -auxbase ma2 -o - -frandom-seed=0
# 1 "ma2.cpp"
# 1 "<built-in>"
# 1 "<command line>"
# 1 "ma2.cpp"
typedef struct float4 {
  float f[4];
} float4;

void madd (float4 *xp) {
  float4 x;
  asm ("movaps %1, %0" : "=x" (x) : "m" (*xp));
  asm ("mulps %0, %1" : "=x" (x) : "x" (x));
  asm ("addps %0, %1" : "=x" (x) : "x" (x));
  asm ("movaps %0, %1" : "=m" (*xp) : "x" (x));
}