re PR middle-end/70457 (ICE (segfault) in gimple_expand_builtin_pow on powerpc64le-linux-gnu)

[gcc]

2016-04-04  Bill Schmidt  <wschmidt@linux.vnet.ibm.com>
	    Jakub Jelinek <jakub@redhat.com>

	PR middle-end/70457
	* tree-inline.c (estimate_num_insn): Use gimple_call_builtin_p
	to ensure a call statement is compatible with a built-in's
	prototype.
	* tree-ssa-math-opts.c (pass_optimize_windening_mul::execute):
	Likewise.

[gcc/testsuite]

2016-04-04  Bill Schmidt  <wschmidt@linux.vnet.ibm.com>
	    Jakub Jelinek <jakub@redhat.com>

	PR middle-end/70457
	* gcc.dg/torture/pr70457.c: New.


Co-Authored-By: Jakub Jelinek <jakub@redhat.com>

From-SVN: r234716

gcc/ChangeLog

+2016-04-04  Bill Schmidt  <wschmidt@linux.vnet.ibm.com>
+	    Jakub Jelinek <jakub@redhat.com>
+
+	PR middle-end/70457
+	* tree-inline.c (estimate_num_insn): Use gimple_call_builtin_p
+	to ensure a call statement is compatible with a built-in's
+	prototype.
+	* tree-ssa-math-opts.c (pass_optimize_windening_mul::execute):
+	Likewise.
+
 2016-04-04  Richard Biener  <rguenther@suse.de>
 
 	PR rtl-optimization/70484

gcc/testsuite/ChangeLog

+2016-04-04  Bill Schmidt  <wschmidt@linux.vnet.ibm.com>
+	    Jakub Jelinek <jakub@redhat.com>
+
+	PR middle-end/70457
+	* gcc.dg/torture/pr70457.c: New.
+
 2016-04-04  Andre Vehreschild  <vehre@gcc.gnu.org>
 
 	PR fortran/67538

gcc/testsuite/gcc.dg/torture/pr70457.c

+/* { dg-do compile } */
+
+/* This formerly ICEd when trying to expand pow as a built-in with
+   the wrong number of arguments.  */
+
+extern double pow (double, double) __attribute__ ((__nothrow__ , __leaf__));
+
+typedef struct {
+  long long data;
+  int tag;
+} Object;
+
+extern Object Make_Flonum (double);
+extern Object P_Pow (Object, Object);
+
+Object General_Function (Object x, Object y, double (*fun)()) {
+  double d, ret;
+
+  d = 1.0;
+
+  if (y.tag >> 1)
+    ret = (*fun) (d);
+  else
+    ret = (*fun) (d, 0.0);
+
+  return Make_Flonum (ret);
+}
+
+Object P_Pow (Object x, Object y) { return General_Function (x, y, pow); }

gcc/tree-inline.c

@@ -4065,7 +4065,7 @@ estimate_num_insns (gimple *stmt, eni_weights *weights)
 	      return 0;
 	    else if (is_inexpensive_builtin (decl))
 	      return weights->target_builtin_call_cost;
-	    else if (DECL_BUILT_IN_CLASS (decl) == BUILT_IN_NORMAL)
+	    else if (gimple_call_builtin_p (stmt, BUILT_IN_NORMAL))
 	      {
 		/* We canonicalize x * x to pow (x, 2.0) with -ffast-math, so
 		   specialize the cheap expansion we do here.

gcc/tree-ssa-math-opts.c

@@ -3827,7 +3827,7 @@ pass_optimize_widening_mul::execute (function *fun)
 	    {
 	      tree fndecl = gimple_call_fndecl (stmt);
 	      if (fndecl
-		  && DECL_BUILT_IN_CLASS (fndecl) == BUILT_IN_NORMAL)
+		  && gimple_call_builtin_p (stmt, BUILT_IN_NORMAL))
 		{
 		  switch (DECL_FUNCTION_CODE (fndecl))
 		    {