re PR tree-optimization/91181 (Failing as_as type conversion in vect_build_slp_tree_1)

2019-07-17  Richard Biener  <rguenther@suse.de>

	PR tree-optimization/91181
	* tree-vect-slp.c (vect_build_slp_tree_1): Do not compare
	IFN_LOADs as calls.

	* gcc.dg/pr91181.c: New testcase.

From-SVN: r273542

gcc/ChangeLog

+2019-07-17  Richard Biener  <rguenther@suse.de>
+
+	PR tree-optimization/91181
+	* tree-vect-slp.c (vect_build_slp_tree_1): Do not compare
+	IFN_LOADs as calls.
+
 2019-07-16  Uroš Bizjak  <ubizjak@gmail.com>
 
 	* config/i386/i386.md (*testdi_1): Match CCZmode for

gcc/testsuite/ChangeLog

+2019-07-17  Richard Biener  <rguenther@suse.de>
+
+	PR tree-optimization/91181
+	* gcc.dg/pr91181.c: New testcase.
+
 2019-07-16  Harald Anlauf  <anlauf@gmx.de>
 
 	PR fortran/90903

gcc/testsuite/gcc.dg/pr91181.c

+/* { dg-do compile } */
+/* { dg-options "-Ofast" } */
+/* { dg-additional-options "-mavx" { target x86_64-*-* i?86-*-* } } */
+
+enum { a, b, c };
+float *d, *e;
+int f, g, h, i;
+int j()
+{
+  float a;
+  for (; h; h++)
+    {
+      i = h * 4;
+      a = d[i + b];
+      if (a) {
+	  e[i + b] = g < d[i + b] * f * a ? g : d[i + b] * f * a;
+	  e[i + c] = g < d[i + c] * f * a ? g : d[i + c] * f * a;
+      }
+      e[i + b] = e[i + c];
+    }
+}

gcc/tree-vect-slp.c

@@ -857,7 +857,7 @@ vect_build_slp_tree_1 (unsigned char *swap,
 	      continue;
 	    }
 
-	  if (rhs_code == CALL_EXPR)
+	  if (!load_p && rhs_code == CALL_EXPR)
 	    {
 	      if (!compatible_calls_p (as_a <gcall *> (stmts[0]->stmt),
 				       as_a <gcall *> (stmt)))