re PR target/68627 ([i386, AVX-512] Illegal insn generated while compiling…

re PR target/68627 ([i386, AVX-512] Illegal insn generated while compiling spec2k6/437.leslie3d for KNL)

PR target/68627

gcc/
	* config/i386/sse.md: Make 'v' alternative work on 'avx512f' ISA only.
	Force destination to 512 bits register.
gcc/testsuite/
	* gfortran.dg/pr68627.f: New test.

From-SVN: r231361

gcc/ChangeLog

 2015-12-07  Kirill Yukhin  <kirill.yukhin@intel.com>
 
+	PR target/68627
+	* config/i386/sse.md: Make 'v' alternative work on 'avx512f' ISA only.
+	Force destination to 512 bits register.
+
+2015-12-07  Kirill Yukhin  <kirill.yukhin@intel.com>
+
 	PR target/68633
 	* config/i386/sse.md (define_insn "kunpckhi"): Fix operands order.
 	(define_insn "kunpcksi"): Ditto.

gcc/config/i386/sse.md

@@ -17385,20 +17385,21 @@
    (set_attr "mode" "<sseinsnmode>")])
 
 (define_insn "vec_dup<mode>"
-  [(set (match_operand:AVX_VEC_DUP_MODE 0 "register_operand" "=x,x,v,x")
+  [(set (match_operand:AVX_VEC_DUP_MODE 0 "register_operand" "=x,x,x,v,x")
 	(vec_duplicate:AVX_VEC_DUP_MODE
-	  (match_operand:<ssescalarmode> 1 "nonimmediate_operand" "m,m,v,?x")))]
+	  (match_operand:<ssescalarmode> 1 "nonimmediate_operand" "m,m,x,v,?x")))]
   "TARGET_AVX"
   "@
    v<sseintprefix>broadcast<bcstscalarsuff>\t{%1, %0|%0, %1}
    vbroadcast<ssescalarmodesuffix>\t{%1, %0|%0, %1}
    v<sseintprefix>broadcast<bcstscalarsuff>\t{%x1, %0|%0, %x1}
+   v<sseintprefix>broadcast<bcstscalarsuff>\t{%x1, %g0|%g0, %x1}
    #"
   [(set_attr "type" "ssemov")
    (set_attr "prefix_extra" "1")
    (set_attr "prefix" "maybe_evex")
-   (set_attr "isa" "avx2,noavx2,avx2,noavx2")
-   (set_attr "mode" "<sseinsnmode>,V8SF,<sseinsnmode>,V8SF")])
+   (set_attr "isa" "avx2,noavx2,avx2,avx512f,noavx2")
+   (set_attr "mode" "<sseinsnmode>,V8SF,<sseinsnmode>,<sseinsnmode>,V8SF")])
 
 (define_split
   [(set (match_operand:AVX2_VEC_DUP_MODE 0 "register_operand")

gcc/testsuite/ChangeLog

 2015-12-07  Kirill Yukhin  <kirill.yukhin@intel.com>
 
+	PR target/68627
+	* gfortran.dg/pr68627.f: New test.
+
+2015-12-07  Kirill Yukhin  <kirill.yukhin@intel.com>
+
 	PR target/68633
 	* gcc.target/i386/pr68633.c: New test.
 

gcc/testsuite/gfortran.dg/pr68627.f

+! { dg-do compile { target lp64 } }
+
+! { dg-options "-Ofast -mavx512f -ffixed-xmm1 -ffixed-xmm2 -ffixed-xmm3 -ffixed-xmm4 -ffixed-xmm5 -ffixed-xmm6 -ffixed-xmm7 -ffixed-xmm8 -ffixed-xmm9 -ffixed-xmm10 -ffixed-xmm11 -ffixed-xmm12 -ffixed-xmm13 -ffixed-xmm14 -ffixed-xmm15" }
+
+      IMPLICIT REAL*8(A-H,O-Z)
+      ALLOCATABLE DD1(:), DD2(:), WY(:,:)
+      ALLOCATE( DD1(MAX), DD2(MAX), WY(MAX,MAX))
+         DO J = J1,J2
+            DO I = I1, I2
+               DD1(I) = D1 * (WY(I-2,J) - WY(I+2,J) +
+     >              (WY(I+1,J) - WY(I-1,J)))
+            END DO
+            DO I = I1, INT(D2 * D3(I))
+            END DO
+         END DO
+      END
+
+! { dg-final { scan-assembler-not "vbroadcastsd\[ \\t\]+%xmm\[0-9\]+, %ymm\[0-9\]+" } }