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PR target/88461 * config/i386/sse.md (VI1248_AVX512VLBW, AVX512ZEXTMASK): New mode iterators. (<avx512>_testm<mode>3<mask_scalar_merge_name>, <avx512>_testnm<mode>3<mask_scalar_merge_name>): Merge patterns with VI12_AVX512VL and VI48_AVX512VL iterators into ones with VI1248_AVX512VLBW iterator. (*<avx512>_testm<VI1248_AVX512VLBW:mode>3_zext, *<avx512>_testm<VI1248_AVX512VLBW:mode>3_zext_mask, *<avx512>_testnm<VI1248_AVX512VLBW:mode>3_zext, *<avx512>_testnm<VI1248_AVX512VLBW:mode>3_zext_mask): New define_insns. * gcc.target/i386/pr88461.c: New test. From-SVN: r267077
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