[PATCH] Improve min/max

[Jakub Jelinek]

Hi!

AVX512BW has EVEX insns for these.

Bootstrapped/regtested on x86_64-linux and i686-linux, ok for trunk?

2016-05-04  Jakub Jelinek  <ja...@redhat.com>

        * config/i386/sse.md (*<code>v8hi3, *<code>v16qi3): Add
        avx512bw alternative.

--- gcc/config/i386/sse.md.jj   2016-05-04 14:36:08.000000000 +0200
+++ gcc/config/i386/sse.md      2016-05-04 15:16:44.180894303 +0200
@@ -10442,19 +10459,20 @@ (define_insn "*sse4_1_<code><mode>3<mask
    (set_attr "mode" "TI")])
 
 (define_insn "*<code>v8hi3"
-  [(set (match_operand:V8HI 0 "register_operand" "=x,x")
+  [(set (match_operand:V8HI 0 "register_operand" "=x,x,v")
        (smaxmin:V8HI
-         (match_operand:V8HI 1 "vector_operand" "%0,x")
-         (match_operand:V8HI 2 "vector_operand" "xBm,xm")))]
+         (match_operand:V8HI 1 "vector_operand" "%0,x,v")
+         (match_operand:V8HI 2 "vector_operand" "xBm,xm,vm")))]
   "TARGET_SSE2 && ix86_binary_operator_ok (<CODE>, V8HImode, operands)"
   "@
    p<maxmin_int>w\t{%2, %0|%0, %2}
+   vp<maxmin_int>w\t{%2, %1, %0|%0, %1, %2}
    vp<maxmin_int>w\t{%2, %1, %0|%0, %1, %2}"
-  [(set_attr "isa" "noavx,avx")
+  [(set_attr "isa" "noavx,avx,avx512bw")
    (set_attr "type" "sseiadd")
-   (set_attr "prefix_data16" "1,*")
-   (set_attr "prefix_extra" "*,1")
-   (set_attr "prefix" "orig,vex")
+   (set_attr "prefix_data16" "1,*,*")
+   (set_attr "prefix_extra" "*,1,1")
+   (set_attr "prefix" "orig,vex,evex")
    (set_attr "mode" "TI")])
 
 (define_expand "<code><mode>3"
@@ -10526,19 +10544,20 @@ (define_insn "*sse4_1_<code><mode>3<mask
    (set_attr "mode" "TI")])
 
 (define_insn "*<code>v16qi3"
-  [(set (match_operand:V16QI 0 "register_operand" "=x,x")
+  [(set (match_operand:V16QI 0 "register_operand" "=x,x,v")
        (umaxmin:V16QI
-         (match_operand:V16QI 1 "vector_operand" "%0,x")
-         (match_operand:V16QI 2 "vector_operand" "xBm,xm")))]
+         (match_operand:V16QI 1 "vector_operand" "%0,x,v")
+         (match_operand:V16QI 2 "vector_operand" "xBm,xm,vm")))]
   "TARGET_SSE2 && ix86_binary_operator_ok (<CODE>, V16QImode, operands)"
   "@
    p<maxmin_int>b\t{%2, %0|%0, %2}
+   vp<maxmin_int>b\t{%2, %1, %0|%0, %1, %2}
    vp<maxmin_int>b\t{%2, %1, %0|%0, %1, %2}"
-  [(set_attr "isa" "noavx,avx")
+  [(set_attr "isa" "noavx,avx,avx512bw")
    (set_attr "type" "sseiadd")
-   (set_attr "prefix_data16" "1,*")
-   (set_attr "prefix_extra" "*,1")
-   (set_attr "prefix" "orig,vex")
+   (set_attr "prefix_data16" "1,*,*")
+   (set_attr "prefix_extra" "*,1,1")
+   (set_attr "prefix" "orig,vex,evex")
    (set_attr "mode" "TI")])
 
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        Jakub