constraints.md ("L"): Return true for 0xffffffff.

	* config/i386/constraints.md ("L"): Return true for 0xffffffff.
	* config/i386/i386.c (*anddi_1): Emit AND with 0xffffffff as MOV.

From-SVN: r183054

gcc/ChangeLog

+2012-01-10  Uros Bizjak  <ubizjak@gmail.com>
+
+	* config/i386/constraints.md ("L"): Return true for 0xffffffff.
+	* config/i386/i386.c (*anddi_1): Emit AND with 0xffffffff as MOV.
+
 2012-01-10  Tom de Vries  <tom@codesourcery.com>
 
 	PR rtl-optimization/51271
@@ -6,7 +11,7 @@
 
 2012-01-10  Richard Henderson  <rth@redhat.com>
 
-	* config/arm/arm.c (arm_vectorize_vec_perm_const_ok, 
+	* config/arm/arm.c (arm_vectorize_vec_perm_const_ok,
 	TARGET_VECTORIZE_VEC_PERM_CONST_OK, neon_split_vcombine, MAX_VECT_LEN,
 	struct expand_vec_perm_d, arm_expand_vec_perm_1, arm_expand_vec_perm,
 	arm_evpc_neon_vuzp, arm_evpc_neon_vzip, arm_evpc_neon_vrev,
@@ -95,7 +100,8 @@
 	    Andrew Pinski  <apinski@cavium.com>
 
 	PR debug/51471
-	* reorg.c (fill_slots_from_thread): Don't speculate frame-related insns.
+	* reorg.c (fill_slots_from_thread): Don't speculate
+	frame-related insns.
 
 2012-01-09  Richard Sandiford  <rdsandiford@googlemail.com>
 
@@ -215,8 +221,7 @@
 2012-01-06  Torvald Riegel  <triegel@redhat.com>
 
 	PR rtl-optimization/51771
-	* builtin-attrs.def (ATTR_RETURNS_TWICE, ATTR_TM_NOTHROW_RT_LIST):
-	New.
+	* builtin-attrs.def (ATTR_RETURNS_TWICE, ATTR_TM_NOTHROW_RT_LIST): New.
 	* gtm-builtins.def (BUILT_IN_TM_START): Add returns-twice attrib.
 
 2012-01-05  Eric Botcazou  <ebotcazou@adacore.com>

gcc/config/i386/constraints.md

@@ -149,9 +149,11 @@
        (match_test "IN_RANGE (ival, -128, 127)")))
 
 (define_constraint "L"
-  "@code{0xFF} or @code{0xFFFF}, for andsi as a zero-extending move."
+  "@code{0xFF}, @code{0xFFFF} or @code{0xFFFFFFFF}
+   for AND as a zero-extending move."
   (and (match_code "const_int")
-       (match_test "ival == 0xFF || ival == 0xFFFF")))
+       (match_test "ival == 0xff || ival == 0xffff
+		    || ival == (HOST_WIDE_INT) 0xffffffff")))
 
 (define_constraint "M"
   "0, 1, 2, or 3 (shifts for the @code{lea} instruction)."

gcc/config/i386/i386.md

@@ -7678,19 +7678,23 @@
 	enum machine_mode mode;
 
 	gcc_assert (CONST_INT_P (operands[2]));
-        if (INTVAL (operands[2]) == 0xff)
-	  mode = QImode;
+	if (INTVAL (operands[2]) == (HOST_WIDE_INT) 0xffffffff)
+	  mode = SImode;
+	else if (INTVAL (operands[2]) == 0xffff)
+	  mode = HImode;
 	else
 	  {
-	    gcc_assert (INTVAL (operands[2]) == 0xffff);
-	    mode = HImode;
+	    gcc_assert (INTVAL (operands[2]) == 0xff);
+	    mode = QImode;
 	  }
 
 	operands[1] = gen_lowpart (mode, operands[1]);
-	if (mode == QImode)
-	  return "movz{bl|x}\t{%1, %k0|%k0, %1}";
-	else
+	if (mode == SImode)
+	  return "mov{l}\t{%1, %k0|%k0, %1}";
+	else if (mode == HImode)
 	  return "movz{wl|x}\t{%1, %k0|%k0, %1}";
+	else
+	  return "movz{bl|x}\t{%1, %k0|%k0, %1}";
       }
 
     default:
@@ -7726,19 +7730,19 @@
 	enum machine_mode mode;
 
 	gcc_assert (CONST_INT_P (operands[2]));
-        if (INTVAL (operands[2]) == 0xff)
-	  mode = QImode;
+        if (INTVAL (operands[2]) == 0xffff)
+	  mode = HImode;
 	else
 	  {
-	    gcc_assert (INTVAL (operands[2]) == 0xffff);
-	    mode = HImode;
+	    gcc_assert (INTVAL (operands[2]) == 0xff);
+	    mode = QImode;
 	  }
 
 	operands[1] = gen_lowpart (mode, operands[1]);
-	if (mode == QImode)
-	  return "movz{bl|x}\t{%1, %0|%0, %1}";
-	else
+	if (mode == HImode)
 	  return "movz{wl|x}\t{%1, %0|%0, %1}";
+	else
+	  return "movz{bl|x}\t{%1, %0|%0, %1}";
       }
 
     default: