re PR rtl-optimization/89865 (FAIL: gcc.target/i386/pr49095.c scan-assembler-times...

re PR rtl-optimization/89865 (FAIL: gcc.target/i386/pr49095.c scan-assembler-times \\\\), % 45)

	PR rtl-optimization/89865
	* config/i386/i386.md
	(SWI12 peephole for mem {+,-,&,|,^}= x; mem != 0): Fix up operand
	numbers not to clash with the additional operands[4].
	(peepholes for mem {+,-,&,|,^}= x; mem != 0): New peephole2s
	with extra register copy in the middle.

	* gcc.target/i386/pr49095.c: Adjust number of expected RMW spots
	on ia32.

From-SVN: r270205