[Bug middle-end/85090] [8 Regression] wrong code with -O2 -fno-tree-dominator-opts -mavx512f -fira-algorithm=priority

[jakub at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=85090

--- Comment #8 from Jakub Jelinek <jakub at gcc dot gnu.org> ---
Author: jakub                                                                   
Date: Sun Apr  1 06:05:01 2018                                                  
New Revision: 258994                                                            

URL: https://gcc.gnu.org/viewcvs?rev=258994&root=gcc&view=rev                   
Log:                                                                            
        PR middle-end/85090                                                     
        * config/i386/sse.md (V): Add V64QI and V32HI for TARGET_AVX512F.       
        (V_128_256): New mode iterator.                                         
        (*avx512dq_vextract<shuffletype>64x2_1 splitter): New define_split.     
        (*avx512f_vextract<shuffletype>32x4_1 splitter): Likewise.              
        (xop_pcmov_<mode><avxsizesuffix>): Use V_128_256 mode iterator instead  
        of V.                                                                   
        * config/i386/i386.c (ix86_expand_vector_set): Improve V32HImode and    
        V64QImode expansion for !TARGET_AVX512BW && TARGET_AVX512F.             

        * gcc.target/i386/avx512f-pr85090-1.c: New test.                        
        * gcc.target/i386/avx512f-pr85090-2.c: New test.                        
        * gcc.target/i386/avx512f-pr85090-3.c: New test.                        
        * gcc.target/i386/avx512bw-pr85090-2.c: New test.                       
        * gcc.target/i386/avx512bw-pr85090-3.c: New test.                       

Added:                                                                          
    trunk/gcc/testsuite/gcc.target/i386/avx512bw-pr85090-2.c                    
    trunk/gcc/testsuite/gcc.target/i386/avx512bw-pr85090-3.c                    
    trunk/gcc/testsuite/gcc.target/i386/avx512f-pr85090-1.c                     
    trunk/gcc/testsuite/gcc.target/i386/avx512f-pr85090-2.c                     
    trunk/gcc/testsuite/gcc.target/i386/avx512f-pr85090-3.c                     
Modified:                                                                       
    trunk/gcc/ChangeLog                                                         
    trunk/gcc/config/i386/i386.c                                                
    trunk/gcc/config/i386/sse.md                                                
    trunk/gcc/testsuite/ChangeLog