* gcc.target/mips/mips32-dspr2-type.c: New test.
* gcc.target/mips/mips32-dspr2.c: New test.
* gcc.target/mips/dspr2-MULT.c: New test.
* gcc.target/mips/dspr2-MULTU.c: New test.
* gcc.target/mips/mips32-dsp-run.c: New test to check execution.
* gcc.target/mips/mips32-dsp.c: Change v4i8 typedef to use signed char.
Adjust some formats.

From-SVN: r122757