re PR target/34856 (ICE with some constant vectors)

	PR target/34856
	* config/i386/i386.c (ix86_expand_vector_init): Consider only
	CONST_INT, CONST_DOUBLE and CONST_FIXED as constant vector elements.

testsuite/ChangeLog:

	PR target/34856
	* gcc.dg/pr34856.c: New test.

From-SVN: r131796

gcc/ChangeLog

+2008-01-24  Uros Bizjak  <ubizjak@gmail.com>
+
+	PR target/34856
+	* config/i386/i386.c (ix86_expand_vector_init): Consider only
+	CONST_INT, CONST_DOUBLE and CONST_FIXED as constant vector elements.
+
 2008-01-24  Jakub Jakub Jelinek  <jakub@redhat.com>
 
 	PR middle-end/34934

gcc/config/i386/i386.c

@@ -23593,7 +23593,9 @@ ix86_expand_vector_init (bool mmx_ok, rtx target, rtx vals)
   for (i = 0; i < n_elts; ++i)
     {
       x = XVECEXP (vals, 0, i);
-      if (!CONSTANT_P (x))
+      if (!(CONST_INT_P (x)
+	    || GET_CODE (x) == CONST_DOUBLE
+	    || GET_CODE (x) == CONST_FIXED))
 	n_var++, one_var = i;
       else if (x != CONST0_RTX (inner_mode))
 	all_const_zero = false;

gcc/testsuite/ChangeLog

+2008-01-24  Uros Bizjak  <ubizjak@gmail.com>
+
+	PR target/34856
+	* gcc.dg/pr34856.c: New test.
+
 2008-01-24  Tobias Burnus  <burnus@net-b.de>
 
 	* gfortran.dg/namelist_39.f90: Delete temporary files.

gcc/testsuite/gcc.dg/pr34856.c

+/* { dg-do compile } */
+/* { dg-options "-O2" } */
+/* { dg-options "-O2 -msse2" { target { i?86-*-* x86_64-*-* } } } */
+
+#undef __vector
+#define __vector __attribute__((vector_size(16) ))
+
+typedef __vector signed char qword;
+typedef __vector unsigned int VU32;
+
+extern short g[192 + 16];
+
+void f (qword);
+
+void f1 (unsigned ctr)
+{
+  VU32 pin;
+  pin = (VU32){(unsigned int) &g[16]};
+  do
+    {
+      f ((qword) pin);
+      ctr--;
+    }
+  while (ctr);
+}