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authorvries <vries@138bc75d-0d04-0410-961f-82ee72b054a4>2015-10-31 09:33:25 +0000
committervries <vries@138bc75d-0d04-0410-961f-82ee72b054a4>2015-10-31 09:33:25 +0000
commit5569a36f8123867c2ad6efd4effebc55ea778af7 (patch)
tree8d3d2131443e37af6aa9321e23fd5a717c4b411f
parente83a804f79584275f87695b8a8e3c2e841016c91 (diff)
downloadgcc-5569a36f8123867c2ad6efd4effebc55ea778af7.tar.gz
Tune pointer-plus folding
2015-10-31 Tom de Vries <tom@codesourcery.com> * fold-const.c (fold_unary_loc): Tune POINTER_PLUS_EXPR folding. * gfortran.dg/assumed_type_2.f90: Update test. * gfortran.dg/no_arg_check_2.f90: Same. git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@229621 138bc75d-0d04-0410-961f-82ee72b054a4
-rw-r--r--gcc/ChangeLog4
-rw-r--r--gcc/fold-const.c10
-rw-r--r--gcc/testsuite/ChangeLog5
-rw-r--r--gcc/testsuite/gfortran.dg/assumed_type_2.f902
-rw-r--r--gcc/testsuite/gfortran.dg/no_arg_check_2.f902
5 files changed, 15 insertions, 8 deletions
diff --git a/gcc/ChangeLog b/gcc/ChangeLog
index 7e4fa20a4cd..48cd3f80d43 100644
--- a/gcc/ChangeLog
+++ b/gcc/ChangeLog
@@ -1,5 +1,9 @@
2015-10-31 Tom de Vries <tom@codesourcery.com>
+ * fold-const.c (fold_unary_loc): Tune POINTER_PLUS_EXPR folding.
+
+2015-10-31 Tom de Vries <tom@codesourcery.com>
+
* tree-ssa-structalias.c (intra_create_variable_infos): Don't expect
existing varinfo for arguments.
diff --git a/gcc/fold-const.c b/gcc/fold-const.c
index b9168f331ed..197ccfddddb 100644
--- a/gcc/fold-const.c
+++ b/gcc/fold-const.c
@@ -7755,14 +7755,12 @@ fold_unary_loc (location_t loc, enum tree_code code, tree type, tree op0)
}
}
- /* Convert (T1)(X p+ Y) into ((T1)X p+ Y), for pointer type,
- when one of the new casts will fold away. Conservatively we assume
- that this happens when X or Y is NOP_EXPR or Y is INTEGER_CST. */
+ /* Convert (T1)(X p+ Y) into ((T1)X p+ Y), for pointer type, when the new
+ cast (T1)X will fold away. We assume that this happens when X itself
+ is a cast. */
if (POINTER_TYPE_P (type)
&& TREE_CODE (arg0) == POINTER_PLUS_EXPR
- && (TREE_CODE (TREE_OPERAND (arg0, 1)) == INTEGER_CST
- || TREE_CODE (TREE_OPERAND (arg0, 0)) == NOP_EXPR
- || TREE_CODE (TREE_OPERAND (arg0, 1)) == NOP_EXPR))
+ && CONVERT_EXPR_P (TREE_OPERAND (arg0, 0)))
{
tree arg00 = TREE_OPERAND (arg0, 0);
tree arg01 = TREE_OPERAND (arg0, 1);
diff --git a/gcc/testsuite/ChangeLog b/gcc/testsuite/ChangeLog
index 2ec795cda2a..85dff2ef2f7 100644
--- a/gcc/testsuite/ChangeLog
+++ b/gcc/testsuite/ChangeLog
@@ -1,3 +1,8 @@
+2015-10-31 Tom de Vries <tom@codesourcery.com>
+
+ * gfortran.dg/assumed_type_2.f90: Update test.
+ * gfortran.dg/no_arg_check_2.f90: Same.
+
2015-10-30 Cesar Philippidis <cesar@codesourcery.com>
* gfortran.dg/gomp/intentin1.f90: Adjust copyprivate warning.
diff --git a/gcc/testsuite/gfortran.dg/assumed_type_2.f90 b/gcc/testsuite/gfortran.dg/assumed_type_2.f90
index ec51b8bcaa8..f1a20747884 100644
--- a/gcc/testsuite/gfortran.dg/assumed_type_2.f90
+++ b/gcc/testsuite/gfortran.dg/assumed_type_2.f90
@@ -155,7 +155,7 @@ end
! { dg-final { scan-tree-dump-times "sub_scalar .&\\(.\\(struct t2.0:. . restrict\\) array_t2_alloc.data" 1 "original" } }
! { dg-final { scan-tree-dump-times "sub_scalar .&\\(.\\(struct t3.0:. .\\) array_t3_ptr.data" 1 "original" } }
! { dg-final { scan-tree-dump-times "sub_scalar .\\(struct t1 .\\) array_class_t1_alloc._data.data" 1 "original" } }
-! { dg-final { scan-tree-dump-times "sub_scalar .\\(struct t1 .\\) array_class_t1_ptr._data.dat" 1 "original" } }a
+! { dg-final { scan-tree-dump-times "sub_scalar .\\(struct t1 .\\) \\(array_class_t1_ptr._data.dat" 1 "original" } }
! { dg-final { scan-tree-dump-times "sub_array_assumed \\(D" 3 "original" } }
! { dg-final { scan-tree-dump-times " = _gfortran_internal_pack \\(&parm" 1 "original" } }
diff --git a/gcc/testsuite/gfortran.dg/no_arg_check_2.f90 b/gcc/testsuite/gfortran.dg/no_arg_check_2.f90
index 3645dedeb21..b3fb4685efe 100644
--- a/gcc/testsuite/gfortran.dg/no_arg_check_2.f90
+++ b/gcc/testsuite/gfortran.dg/no_arg_check_2.f90
@@ -137,7 +137,7 @@ end
! { dg-final { scan-tree-dump-times "sub_scalar .&\\(.\\(struct t2.0:. . restrict\\) array_t2_alloc.data" 1 "original" } }
! { dg-final { scan-tree-dump-times "sub_scalar .&\\(.\\(struct t3.0:. .\\) array_t3_ptr.data" 1 "original" } }
! { dg-final { scan-tree-dump-times "sub_scalar .\\(struct t1 .\\) array_class_t1_alloc._data.data" 1 "original" } }
-! { dg-final { scan-tree-dump-times "sub_scalar .\\(struct t1 .\\) array_class_t1_ptr._data.dat" 1 "original" } }a
+! { dg-final { scan-tree-dump-times "sub_scalar .\\(struct t1 .\\) \\(array_class_t1_ptr._data.dat" 1 "original" } }
! { dg-final { scan-tree-dump-times "sub_array_assumed \\(D" 3 "original" } }
! { dg-final { scan-tree-dump-times " = _gfortran_internal_pack \\(&parm" 1 "original" } }