re PR target/39162 (Gcc doesn't warn __m256 when -mavx isn't used)

re PR target/39162 (Gcc doesn't warn __m256 when -mavx isn't used)

gcc/

2009-02-13  H.J. Lu  <hongjiu.lu@intel.com>

	PR target/39162
	* config/i386/i386.c (type_natural_mode): Add a new argument.
	Return the original mode and warn ABI change if vector size
	is 32byte.
	(function_arg_advance): Updated.
	(function_arg): Likewise.
	(ix86_function_value): Likewise.
	(ix86_return_in_memory): Likewise.
	(ix86_sol10_return_in_memory): Likewise.
	(ix86_gimplify_va_arg): Likewise.
	(function_arg_32): Don't warn ABX ABI change here.
	(function_arg_64): Likewise.

gcc/testsuite/

2009-02-13  H.J. Lu  <hongjiu.lu@intel.com>

	PR target/39162
	* gcc.target/i386/pr39162.c: New.

From-SVN: r144157