When 387 FPU isn't used, there is no excess precision.  We should set
FLT_EVAL_METHOD to 2 only if 387 FPU is used.

gcc/

	PR target/69225
	* config/i386/i386.h (TARGET_FLT_EVAL_METHOD): Set to 2 only if
	TARGET_80387 is true.

gcc/testsuite

	PR target/69225
	* gcc.target/i386/pr69225-1.c: New test.
	* gcc.target/i386/pr69225-2.c: Likewise.
	* gcc.target/i386/pr69225-3.c: Likewise.
	* gcc.target/i386/pr69225-4.c: Likewise.
	* gcc.target/i386/pr69225-5.c: Likewise.
	* gcc.target/i386/pr69225-6.c: Likewise.

From-SVN: r232249