re PR middle-end/43730 (internal compiler error: in…

re PR middle-end/43730 (internal compiler error: in expand_builtin_interclass_mathfn, at builtins.c:2313)

	PR middle-end/43730
	* builtins.c (expand_builtin_interclass_mathfn): Also create
	a register if the predicate doesn't match.

testsuite/
	* gcc.dg/pr43730.c: New test.

From-SVN: r158268

gcc/ChangeLog

+2010-04-13  Michael Matz  <matz@suse.de>
+
+	PR middle-end/43730
+	* builtins.c (expand_builtin_interclass_mathfn): Also create
+	a register if the predicate doesn't match.
+
 2010-04-13  Diego Novillo  <dnovillo@google.com>
 
 	* Makefile.in (c-pch.o, ggc-common.o): Depend on timevar.h.

gcc/builtins.c

@@ -2316,7 +2316,8 @@ expand_builtin_interclass_mathfn (tree exp, rtx target, rtx subtarget)
       tree orig_arg = arg;
       /* Make a suitable register to place result in.  */
       if (!target
-	  || GET_MODE (target) != TYPE_MODE (TREE_TYPE (exp)))
+	  || GET_MODE (target) != TYPE_MODE (TREE_TYPE (exp))
+	  || !insn_data[icode].operand[0].predicate (target, GET_MODE (target)))
          target = gen_reg_rtx (TYPE_MODE (TREE_TYPE (exp)));
 
       gcc_assert (insn_data[icode].operand[0].predicate

gcc/testsuite/ChangeLog

 2010-04-13  Michael Matz  <matz@suse.de>
 
+	PR middle-end/43730
+	* gcc.dg/pr43730.c: New test.
+
+2010-04-13  Michael Matz  <matz@suse.de>
+
 	* gcc.dg/tree-ssa/negate.c: New testcase.
 
 2010-04-13  Richard Guenther  <rguenther@suse.de>

gcc/testsuite/gcc.dg/pr43730.c

+/* { dg-do compile } */
+/* { dg-options "-O0" } */
+extern int (isinfl)(long double);
+
+int
+bugfun(long double x, long double y)
+{
+  int result;
+
+  if (isinfl(x))
+    result = isinfl(y);
+  else
+    {
+      int kx, ky;
+      kx = ky = 1;
+      result = (kx == ky);
+    }
+  return (result);
+}