re PR middle-end/85195 (ICE: verify_gimple failed: non-trivial conversion at…

re PR middle-end/85195 (ICE: verify_gimple failed: non-trivial conversion at assignment with -O -fno-tree-ccp --param=sccvn-max-scc-size=10)

	PR middle-end/85195
	* match.pd (BIT_FIELD_REF CONSTRUCTOR@0 @1 @2): Use view_convert around
	CONSTRUCTOR_ELT (ctor, ...)->value.

	* gcc.dg/pr85195.c: New test.

From-SVN: r259149

gcc/ChangeLog

+2018-04-05  Jakub Jelinek  <jakub@redhat.com>
+
+	PR middle-end/85195
+	* match.pd (BIT_FIELD_REF CONSTRUCTOR@0 @1 @2): Use view_convert around
+	CONSTRUCTOR_ELT (ctor, ...)->value.
+
 2018-04-05  Uros Bizjak  <ubizjak@gmail.com>
 
 	PR target/85193

gcc/match.pd

@@ -4650,7 +4650,7 @@ DEFINE_INT_AND_FLOAT_ROUND_FN (RINT)
         { build_constructor (type, NULL); }
 	(if (count == 1)
 	 (if (elt < CONSTRUCTOR_NELTS (ctor))
-	  { CONSTRUCTOR_ELT (ctor, elt)->value; }
+	  (view_convert { CONSTRUCTOR_ELT (ctor, elt)->value; })
 	  { build_zero_cst (type); })
 	 {
 	   vec<constructor_elt, va_gc> *vals;
@@ -4668,7 +4668,7 @@ DEFINE_INT_AND_FLOAT_ROUND_FN (RINT)
 	(if (CONSTRUCTOR_NELTS (ctor) <= idx / const_k)
 	 { build_zero_cst (type); })
 	(if (n == const_k)
-	 { CONSTRUCTOR_ELT (ctor, idx / const_k)->value; })
+	 (view_convert { CONSTRUCTOR_ELT (ctor, idx / const_k)->value; }))
 	(BIT_FIELD_REF { CONSTRUCTOR_ELT (ctor, idx / const_k)->value; }
 		       @1 { bitsize_int ((idx % const_k) * width); })))))))))
 

gcc/testsuite/ChangeLog

+2018-04-05  Jakub Jelinek  <jakub@redhat.com>
+
+	PR middle-end/85195
+	* gcc.dg/pr85195.c: New test.
+
 2018-04-05  Paolo Carlini  <paolo.carlini@oracle.com>
 
 	PR c++/80956

gcc/testsuite/gcc.dg/pr85195.c

+/* PR middle-end/85195 */
+/* { dg-do compile { target int128 } } */
+/* { dg-options "-Wno-psabi -O -fno-tree-ccp --param=sccvn-max-scc-size=10" } */
+
+typedef __int128 V __attribute__ ((vector_size (16)));
+
+extern int bar (V);
+
+V v;
+int i;
+
+V
+foo (void)
+{
+  do
+    v *= bar (v & i);
+  while ((V){}[0]);
+  return v;
+}