Merge pull request #5527 from ChipKerchner/fixbfloat16Tobf16conversions #3593

Job	Run time
TEST (SICORTEX, mips64el-linux-gnuabi64, NO_SHARED=1 TARGET=SICORTEX)	7m 32s
TEST (P6600, mipsisa64r6el-linux-gnuabi64, NO_SHARED=1 TARGET=P6600)	8m 31s
TEST (I6500, mipsisa64r6el-linux-gnuabi64, NO_SHARED=1 TARGET=I6500)	9m 23s
TEST (I6400, mipsisa64r6el-linux-gnuabi64, NO_SHARED=1 TARGET=I6400)	13m 48s
TEST (MIPS64_GENERIC, mips64el-linux-gnuabi64, NO_SHARED=1 TARGET=MIPS64_GENERIC)	8m 15s
	47m 29s

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