re PR fortran/55789 (Needless realloc with array constructor.)

2013-02-06 Paul Thomas  <[email protected]>

	PR fortran/55789
	* trans-array.c (trans_array_constructor): Remove condition
	'dynamic' = true if the loop ubound is a VAR_DECL.

2013-02-06 Paul Thomas  <[email protected]>

	PR fortran/55789
	* gfortran.dg/array_constructor_41.f90: New test.

From-SVN: r195815

Author: Paul Thomas

gcc/fortran/ChangeLog

@@ -1,3 +1,9 @@
+2013-02-06 Paul Thomas  <[email protected]>
+
+	PR fortran/55789
+	* trans-array.c (trans_array_constructor): Remove condition
+	'dynamic' = true if the loop ubound is a VAR_DECL.
+
 2013-02-04  Paul Thomas  <[email protected]>
 
 	PR fortran/56008

gcc/fortran/trans-array.c

@@ -2307,9 +2307,6 @@ trans_array_constructor (gfc_ss * ss, locus * where)
 	}
     }
 
-  if (TREE_CODE (*loop_ubound0) == VAR_DECL)
-    dynamic = true;
-
   gfc_trans_create_temp_array (&outer_loop->pre, &outer_loop->post, ss, type,
 			       NULL_TREE, dynamic, true, false, where);
 

gcc/testsuite/ChangeLog

@@ -1,3 +1,8 @@
+2013-02-06 Paul Thomas  <[email protected]>
+
+	PR fortran/55789
+	* gfortran.dg/array_constructor_41.f90: New test.
+
 2013-02-06  Janus Weil  <[email protected]>
 
 	PR fortran/55978

gcc/testsuite/gfortran.dg/array_constructor_41.f90

@@ -0,0 +1,33 @@
+! { dg-do compile }
+! { dg-options "-fdump-tree-original" }
+! Test fix for PR55789
+!
+! Contributed by Joost VandVandole  <[email protected]>
+!
+MODULE M1
+CONTAINS
+  SUBROUTINE cp_1d_i4_sort(arr)
+      INTEGER(kind=4), DIMENSION(:), &
+        INTENT(inout)                          :: arr
+      arr = (/ (i, i = 1, SIZE(arr)) /)
+  END SUBROUTINE
+END MODULE M1
+
+PROGRAM TEST
+  USE M1
+  INTEGER :: arr(1)
+  INTERFACE
+    SUBROUTINE mtrace() BIND(C,name="mtrace")
+    END SUBROUTINE
+  END INTERFACE
+  INTERFACE
+    SUBROUTINE muntrace() BIND(C,name="muntrace")
+    END SUBROUTINE
+  END INTERFACE
+  CALL mtrace()
+  CALL cp_1d_i4_sort(arr)
+  CALL muntrace()
+END
+
+! { dg-final { scan-tree-dump-times "realloc" 0 "original" } }
+! { dg-final { cleanup-tree-dump "original" } }