[Bug target/59874] Missing builtin (__builtin_clzs) when compiling with g++

[uros at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=59874

--- Comment #11 from uros at gcc dot gnu.org ---
Author: uros
Date: Wed Dec 14 20:27:06 2016
New Revision: 243668

URL: https://gcc.gnu.org/viewcvs?rev=243668&root=gcc&view=rev
Log:
        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.


Added:
    trunk/gcc/testsuite/gcc.target/i386/pr59874-1.c
    trunk/gcc/testsuite/gcc.target/i386/pr59874-2.c
Modified:
    trunk/gcc/ChangeLog
    trunk/gcc/config/i386/i386-builtin.def
    trunk/gcc/config/i386/i386.c
    trunk/gcc/config/i386/i386.md
    trunk/gcc/testsuite/ChangeLog