arm.c (coproc_secondary_reload_class): Return NO_REGS for constant vectors.

2011-06-07  Sergey Grechanik  <mouseentity@ispras.ru>

	* config/arm/arm.c (coproc_secondary_reload_class): Return NO_REGS for
	constant vectors.

testsuite:
	* gcc.target/arm/neon-reload-class.c: New test.

From-SVN: r174749

gcc/ChangeLog

+2011-06-07  Sergey Grechanik  <mouseentity@ispras.ru>
+
+	* config/arm/arm.c (coproc_secondary_reload_class): Return NO_REGS for
+	constant vectors.
+
 2011-06-07  Richard Guenther  <rguenther@suse.de>
 
 	* stor-layout.c (initialize_sizetypes): Initialize all

gcc/config/arm/arm.c

@@ -9079,7 +9079,7 @@ coproc_secondary_reload_class (enum machine_mode mode, rtx x, bool wb)
   /* The neon move patterns handle all legitimate vector and struct
      addresses.  */
   if (TARGET_NEON
-      && MEM_P (x)
+      && (MEM_P (x) || GET_CODE (x) == CONST_VECTOR)
       && (GET_MODE_CLASS (mode) == MODE_VECTOR_INT
 	  || GET_MODE_CLASS (mode) == MODE_VECTOR_FLOAT
 	  || VALID_NEON_STRUCT_MODE (mode)))

gcc/testsuite/ChangeLog

+2011-06-07  Sergey Grechanik  <mouseentity@ispras.ru>
+
+	* gcc.target/arm/neon-reload-class.c: New test.
+
 2011-06-07  Dodji Seketeli  <dodji@redhat.com>
 
 	PR debug/49130

gcc/testsuite/gcc.target/arm/neon-reload-class.c

+/* { dg-do compile } */
+/* { dg-require-effective-target arm_neon_ok } */
+/* { dg-options "-O2 -ftree-vectorize" }  */
+/* { dg-add-options arm_neon } */
+
+
+void
+_op_blend_p_caa_dp(unsigned *s, unsigned* e, unsigned *d, unsigned c) {
+  while (d < e) {
+    *d = ( (((((*s) >> 8) & 0x00ff00ff) * (c)) & 0xff00ff00) + (((((*s) & 0x00ff00ff) * (c)) >> 8) & 0x00ff00ff) );
+    d++;
+    s++;
+  }
+}
+
+/* These constants should be emitted as immediates rather than loaded from memory.  */
+
+/* { dg-final { scan-assembler-not "(\\.d?word|mov(w|t))" } } */