sse.md (<ssse3_avx2>_palignr<mode>): Use constraint x instead of v in second…

sse.md (<ssse3_avx2>_palignr<mode>): Use constraint x instead of v in second alternative, add avx512bw alternative.

	* config/i386/sse.md (<ssse3_avx2>_palignr<mode>): Use
	constraint x instead of v in second alternative, add avx512bw
	alternative.

	* gcc.target/i386/avx512vl-vpalignr-3.c: New test.
	* gcc.target/i386/avx512bw-vpalignr-3.c: New test.

From-SVN: r236368

gcc/ChangeLog

 2016-05-18  Jakub Jelinek  <jakub@redhat.com>
 
+	* config/i386/sse.md (<ssse3_avx2>_palignr<mode>): Use
+	constraint x instead of v in second alternative, add avx512bw
+	alternative.
+
 	* config/i386/sse.md (<ssse3_avx2>_pshufb<mode>3<mask_name>): Use
 	constraint x instead of v in second alternative, add avx512bw
 	alternative.

gcc/config/i386/sse.md

@@ -14301,11 +14301,11 @@
    (set_attr "mode" "<sseinsnmode>")])
 
 (define_insn "<ssse3_avx2>_palignr<mode>"
-  [(set (match_operand:SSESCALARMODE 0 "register_operand" "=x,v")
+  [(set (match_operand:SSESCALARMODE 0 "register_operand" "=x,x,v")
 	(unspec:SSESCALARMODE
-	  [(match_operand:SSESCALARMODE 1 "register_operand" "0,v")
-	   (match_operand:SSESCALARMODE 2 "vector_operand" "xBm,vm")
-	   (match_operand:SI 3 "const_0_to_255_mul_8_operand" "n,n")]
+	  [(match_operand:SSESCALARMODE 1 "register_operand" "0,x,v")
+	   (match_operand:SSESCALARMODE 2 "vector_operand" "xBm,xm,vm")
+	   (match_operand:SI 3 "const_0_to_255_mul_8_operand" "n,n,n")]
 	  UNSPEC_PALIGNR))]
   "TARGET_SSSE3"
 {
@@ -14316,18 +14316,19 @@
     case 0:
       return "palignr\t{%3, %2, %0|%0, %2, %3}";
     case 1:
+    case 2:
       return "vpalignr\t{%3, %2, %1, %0|%0, %1, %2, %3}";
     default:
       gcc_unreachable ();
     }
 }
-  [(set_attr "isa" "noavx,avx")
+  [(set_attr "isa" "noavx,avx,avx512bw")
    (set_attr "type" "sseishft")
    (set_attr "atom_unit" "sishuf")
-   (set_attr "prefix_data16" "1,*")
+   (set_attr "prefix_data16" "1,*,*")
    (set_attr "prefix_extra" "1")
    (set_attr "length_immediate" "1")
-   (set_attr "prefix" "orig,vex")
+   (set_attr "prefix" "orig,vex,evex")
    (set_attr "mode" "<sseinsnmode>")])
 
 (define_insn "ssse3_palignrdi"

gcc/testsuite/ChangeLog

 2016-05-18  Jakub Jelinek  <jakub@redhat.com>
 
+	* gcc.target/i386/avx512vl-vpalignr-3.c: New test.
+	* gcc.target/i386/avx512bw-vpalignr-3.c: New test.
+
 	* gcc.target/i386/avx512vl-vpshufb-3.c: New test.
 	* gcc.target/i386/avx512bw-vpshufb-3.c: New test.
 

gcc/testsuite/gcc.target/i386/avx512bw-vpalignr-3.c

+/* { dg-do compile { target { ! ia32 } } } */
+/* { dg-options "-O2 -mavx512vl -mavx512bw" } */
+
+#include <x86intrin.h>
+
+void
+f1 (__m128i x, __m128i y)
+{
+  register __m128i a __asm ("xmm16"), b __asm ("xmm17");
+  a = x;
+  b = y;
+  asm volatile ("" : "+v" (a), "+v" (b));
+  a = _mm_alignr_epi8 (a, b, 3);
+  asm volatile ("" : "+v" (a));
+}
+
+/* { dg-final { scan-assembler "vpalignr\[^\n\r]*xmm1\[67]\[^\n\r]*xmm1\[67]\[^\n\r]*xmm1\[67]" } } */
+
+void
+f2 (__m256i x, __m256i y)
+{
+  register __m256i a __asm ("xmm16"), b __asm ("xmm17");
+  a = x;
+  b = y;
+  asm volatile ("" : "+v" (a), "+v" (b));
+  a = _mm256_alignr_epi8 (a, b, 3);
+  asm volatile ("" : "+v" (a));
+}
+
+/* { dg-final { scan-assembler "vpalignr\[^\n\r]*ymm1\[67]\[^\n\r]*ymm1\[67]\[^\n\r]*ymm1\[67]" } } */

gcc/testsuite/gcc.target/i386/avx512vl-vpalignr-3.c

+/* { dg-do compile { target { ! ia32 } } } */
+/* { dg-options "-O2 -mavx512vl -mno-avx512bw" } */
+
+#include <x86intrin.h>
+
+void
+f1 (__m128i x, __m128i y)
+{
+  register __m128i a __asm ("xmm16"), b __asm ("xmm17");
+  a = x;
+  b = y;
+  asm volatile ("" : "+v" (a), "+v" (b));
+  a = _mm_alignr_epi8 (a, b, 3);
+  asm volatile ("" : "+v" (a));
+}
+
+/* { dg-final { scan-assembler-not "vpalignr\[^\n\r]*xmm1\[67]" } } */
+
+void
+f2 (__m256i x, __m256i y)
+{
+  register __m256i a __asm ("xmm16"), b __asm ("xmm17");
+  a = x;
+  b = y;
+  asm volatile ("" : "+v" (a), "+v" (b));
+  a = _mm256_alignr_epi8 (a, b, 3);
+  asm volatile ("" : "+v" (a));
+}
+
+/* { dg-final { scan-assembler-not "vpalignr\[^\n\r]*ymm1\[67]" } } */