recog.c (validate_replace_rtx_1): In ZERO_EXTEND / SIGN_EXTEND case...
* recog.c (validate_replace_rtx_1): In ZERO_EXTEND / SIGN_EXTEND case, don't use operand_subword to calculate a SUBREG that is wider than a word. * rtl.texi: Comparisons yield 0 or STORE_FLAG_VALUE. From-SVN: r39183
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