diff options
Diffstat (limited to 'gcc')
| -rw-r--r-- | gcc/ChangeLog | 6 | ||||
| -rw-r--r-- | gcc/testsuite/ChangeLog | 5 | ||||
| -rw-r--r-- | gcc/testsuite/g++.dg/torture/pr32563.C | 8 | ||||
| -rw-r--r-- | gcc/tree.c | 3 |
4 files changed, 21 insertions, 1 deletions
diff --git a/gcc/ChangeLog b/gcc/ChangeLog index 486b3d0fefb..234bc4505f5 100644 --- a/gcc/ChangeLog +++ b/gcc/ChangeLog @@ -1,3 +1,9 @@ +2007-08-22 Richard Guenther <rguenther@suse.de> + + PR middle-end/32563 + * tree.c (host_integerp): Treat sizetype as signed as it is + sign-extended. + 2007-08-21 Ian Lance Taylor <iant@google.com> PR tree-optimization/33134 diff --git a/gcc/testsuite/ChangeLog b/gcc/testsuite/ChangeLog index fb5aa87b062..8b73a028977 100644 --- a/gcc/testsuite/ChangeLog +++ b/gcc/testsuite/ChangeLog @@ -1,3 +1,8 @@ +2007-08-22 Richard Guenther <rguenther@suse.de> + + PR middle-end/32563 + * g++.dg/torture/pr32563.C: New testcase. + 2007-08-22 Jakub Jelinek <jakub@redhat.com> PR middle-end/32912 diff --git a/gcc/testsuite/g++.dg/torture/pr32563.C b/gcc/testsuite/g++.dg/torture/pr32563.C new file mode 100644 index 00000000000..d536b3faaff --- /dev/null +++ b/gcc/testsuite/g++.dg/torture/pr32563.C @@ -0,0 +1,8 @@ +/* { dg-do compile } */ + +struct A +{ + char c[1]; +} a; + +const __SIZE_TYPE__ i = (__SIZE_TYPE__)&a.c[0] - 1; diff --git a/gcc/tree.c b/gcc/tree.c index ce4ee5d263f..95aa1b9e040 100644 --- a/gcc/tree.c +++ b/gcc/tree.c @@ -4936,7 +4936,8 @@ host_integerp (const_tree t, int pos) && (HOST_WIDE_INT) TREE_INT_CST_LOW (t) >= 0) || (! pos && TREE_INT_CST_HIGH (t) == -1 && (HOST_WIDE_INT) TREE_INT_CST_LOW (t) < 0 - && !TYPE_UNSIGNED (TREE_TYPE (t))) + && (!TYPE_UNSIGNED (TREE_TYPE (t)) + || TYPE_IS_SIZETYPE (TREE_TYPE (t)))) || (pos && TREE_INT_CST_HIGH (t) == 0))); } |