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PR target/59874 * config/i386/i386-builtin.def: Add __builtin_clzs and __builtin_ctzs. (ix86_fold_builtin): Handle IX86_BUILTIN_CTZS and IX86_BUILTIN_CLZS. * config/i386/i386.md (*ctzhi2): New insn_and_split pattern. (*clzhi2): Ditto. testsuite/ChangeLog PR target/59874 * gcc.target/i386/pr59874-1.c: New test. * gcc.target/i386/pr59874-2.c: Ditto. From-SVN: r243668
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