/gas/ChangeLog

	/gas/ChangeLog
	* config/tc-mips.c (macro_build_ldst_constoffset): Fail on $at
	uses after .set noat.
	(load_address): Likewise.
	(macro): Likewise. Don't try to avoid $at use by sacrificing
	the target register before it is stored, it won't work.

	/gas/testsuite/ChangeLog
	* gas/mips/noat-1.s, gas/mips/noat-1.d, gas/mips/noat-2.s,
	gas/mips/noat2.l, gas/mips/noat-3.s, gas/mips/noat-3.l,
	gas/mips/noat-4.s, gas/mips/noat-4.l, gas/mips/noat-5.s,
	gas/mips/noat-5.l, gas/mips/noat-6.s, gas/mips/noat-6.l,
	gas/mips/noat-7.s, gas/mips/noat-7.l: New files, testcases for
	.set noat in macro expansions.
	* gas/mips/mips.exp: Run new testcases.
	* gas/mips/rol-hw.d, gas/mips/rol-hw.l, gas/mips/rol.d,
	gas/mips/rol.l, gas/mips/rol.s, gas/mips/rol64-hw.d,
	gas/mips/rol64-hw.l, gas/mips/rol64.d, gas/mips/rol64.l,
	gas/mips/rol64.s, gas/mips/uld2-eb.d, gas/mips/uld2-el.d,
	gas/mips/uld2.l, gas/mips/uld2.s, gas/mips/ulh2-eb.d,
	gas/mips/ulh2-el.d, gas/mips/ulh2.l, gas/mips/ulh2.s,
	gas/mips/ulw2-eb-ilocks.d, gas/mips/ulw2-eb.d,
	gas/mips/ulw2-el-ilocks.d, gas/mips/ulw2-el.d, gas/mips/ulw2.l,
	gas/mips/ulw2.s: Don't try to test .set noat.