Uros Bizjak
8ab9333261
re PR target/30970 (Register zeroing by xor N,N should be moved out of loop)
PR target/30970 * config/i386/sse.md (*mov<mode>_internal, *movv4sf_internal, *movv2df_internal): Enable pattern only for valid operand combinations. * config/i386/i386.c (ix86_modes_tieable_p): For SSE registers, tie only 128bit modes. For MMX registers, tie only 64bit modes. testsuite/ChangeLog: PR target/30970 * gcc.target/i386/gfortran.dg/pr30970.c: New test. From-SVN: r122387
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