generic-match-head.c (types_match): Handle non-types.

2015-05-14  Marc Glisse  <marc.glisse@inria.fr>

gcc/
	* generic-match-head.c (types_match): Handle non-types.
	* gimple-match-head.c (types_match): Likewise.
	* match.pd: Remove unnecessary TREE_TYPE for types_match.

From-SVN: r223199

gcc/ChangeLog

+2015-05-14  Marc Glisse  <marc.glisse@inria.fr>
+
+	* generic-match-head.c (types_match): Handle non-types.
+	* gimple-match-head.c (types_match): Likewise.
+	* match.pd: Remove unnecessary TREE_TYPE for types_match.
+
 2015-05-14  Wilco Dijkstra  <wdijkstr@arm.com>
 
 	* config/aarch64/aarch64.md (absdi2): Optimize abs expansion.

gcc/generic-match-head.c

@@ -71,11 +71,17 @@ along with GCC; see the file COPYING3.  If not see
 #include "generic-match.h"
 
 /* Routine to determine if the types T1 and T2 are effectively
-   the same for GENERIC.  */
+   the same for GENERIC.  If T1 or T2 is not a type, the test
+   applies to their TREE_TYPE.  */
 
 static inline bool
 types_match (tree t1, tree t2)
 {
+  if (!TYPE_P (t1))
+    t1 = TREE_TYPE (t1);
+  if (!TYPE_P (t2))
+    t2 = TREE_TYPE (t2);
+
   return TYPE_MAIN_VARIANT (t1) == TYPE_MAIN_VARIANT (t2);
 }
 

gcc/gimple-match-head.c

@@ -862,11 +862,17 @@ do_valueize (tree (*valueize)(tree), tree op)
 }
 
 /* Routine to determine if the types T1 and T2 are effectively
-   the same for GIMPLE.  */
+   the same for GIMPLE.  If T1 or T2 is not a type, the test
+   applies to their TREE_TYPE.  */
 
 static inline bool
 types_match (tree t1, tree t2)
 {
+  if (!TYPE_P (t1))
+    t1 = TREE_TYPE (t1);
+  if (!TYPE_P (t2))
+    t2 = TREE_TYPE (t2);
+
   return types_compatible_p (t1, t2);
 }
 

gcc/match.pd

@@ -289,7 +289,7 @@ along with GCC; see the file COPYING3.  If not see
   (if (((TREE_CODE (@1) == INTEGER_CST
 	 && INTEGRAL_TYPE_P (TREE_TYPE (@0))
 	 && int_fits_type_p (@1, TREE_TYPE (@0)))
-	|| types_match (TREE_TYPE (@0), TREE_TYPE (@1)))
+	|| types_match (@0, @1))
        /* ???  This transform conflicts with fold-const.c doing
 	  Convert (T)(x & c) into (T)x & (T)c, if c is an integer
 	  constants (if x has signed type, the sign bit cannot be set
@@ -948,7 +948,7 @@ along with GCC; see the file COPYING3.  If not see
 /* Unordered tests if either argument is a NaN.  */
 (simplify
  (bit_ior (unordered @0 @0) (unordered @1 @1))
- (if (types_match (TREE_TYPE (@0), TREE_TYPE (@1)))
+ (if (types_match (@0, @1))
   (unordered @0 @1)))
 (simplify
  (bit_ior:c (unordered @0 @0) (unordered:c@2 @0 @1))
@@ -1068,8 +1068,8 @@ along with GCC; see the file COPYING3.  If not see
 	 && TYPE_PRECISION (type) == GET_MODE_PRECISION (TYPE_MODE (type))
 	 /* The inner conversion must be a widening conversion.  */
 	 && TYPE_PRECISION (TREE_TYPE (@2)) > TYPE_PRECISION (TREE_TYPE (@0))
-	 && types_match (TREE_TYPE (@0), TREE_TYPE (@1))
-	 && types_match (TREE_TYPE (@0), type)
+	 && types_match (@0, @1)
+	 && types_match (@0, type)
 	 && single_use (@4))
       (if (TYPE_OVERFLOW_WRAPS (TREE_TYPE (@0)))
 	(convert (op @0 @1)))
@@ -1099,7 +1099,7 @@ along with GCC; see the file COPYING3.  If not see
 	 && TYPE_PRECISION (type) == GET_MODE_PRECISION (TYPE_MODE (type))
 	 /* The inner conversion must be a widening conversion.  */
 	 && TYPE_PRECISION (TREE_TYPE (@2)) > TYPE_PRECISION (TREE_TYPE (@0))
-	 && types_match (TREE_TYPE (@0), TREE_TYPE (@1))
+	 && types_match (@0, @1)
 	 && (tree_int_cst_min_precision (@4, UNSIGNED)
 	     <= TYPE_PRECISION (TREE_TYPE (@0)))
 	 && single_use (@5))