instruction: 0.729
syscall: 0.172
runtime: 0.099



on loongarch host,  LSX vec get wrong result
Description of problem:
on loongarch host,  the lsx insns get wrong result.
Steps to reproduce:
1. build linux-user on loongarch host  with '--configure --target-list ='loongarch64-linux-user''
2. build test code  'gcc --static test.c -o test'
3. run './build/qemu-loongarch64 test'
Additional information:
run 'qemu-loongarch64 test' 
the result is 

`0: 2f2f2f2f
1: 0
2: 2f2f2f2f
3: 0
4: ffffffff
5: 0
6: ffffffff
7: ffffffff`

and the 6 or 7  may be ffffff or 0.

run 'test' on loongarch host  or run qemu-loongarch64 on x86_64 host.
the result is 

`0: 2f2f2f2f
1: 0
2: 2f2f2f2f
3: 0
4: 0
5: 0
6: 0
7: 0`

for more infomation see log.txt