93 lines
2.9 KiB
Diff
93 lines
2.9 KiB
Diff
2009-06-15 Jakub Jelinek <jakub@redhat.com>
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* tree-object-size.c (addr_object_size): Fix a pasto in the last
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change.
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* gcc.dg/builtin-object-size-7.c: New test.
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--- gcc/tree-object-size.c.jj 2009-06-12 10:36:08.000000000 +0200
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+++ gcc/tree-object-size.c 2009-06-15 18:40:17.000000000 +0200
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@@ -316,7 +316,7 @@ addr_object_size (struct object_size_inf
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&& tree_int_cst_lt (pt_var_size, bytes2))
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bytes2 = size_zero_node;
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else
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- bytes2 = size_binop (MINUS_EXPR, var_size, bytes2);
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+ bytes2 = size_binop (MINUS_EXPR, pt_var_size, bytes2);
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bytes = size_binop (MIN_EXPR, bytes, bytes2);
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}
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}
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--- gcc/testsuite/gcc.dg/builtin-object-size-7.c.jj 2009-06-15 18:54:33.000000000 +0200
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+++ gcc/testsuite/gcc.dg/builtin-object-size-7.c 2009-06-15 18:55:58.000000000 +0200
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@@ -0,0 +1,71 @@
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+/* { dg-do run } */
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+/* { dg-options "-O2" } */
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+
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+typedef __SIZE_TYPE__ size_t;
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+extern void *malloc (size_t);
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+extern void abort (void);
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+
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+struct A
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+{
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+ int i, j, k;
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+ char buf[255];
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+ int l, m, n, o;
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+};
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+
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+int
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+main (void)
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+{
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+ const size_t s = sizeof (struct A);
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+ const size_t o = __builtin_offsetof (struct A, buf);
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+ struct A *a = malloc (s);
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+ struct A *b = malloc (o + 212);
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+ if (__builtin_object_size (a->buf, 0) != s - o)
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+ abort ();
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+ if (__builtin_object_size (a->buf, 1) != sizeof (a->buf))
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+ abort ();
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+ if (__builtin_object_size (a->buf, 2) != s - o)
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+ abort ();
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+ if (__builtin_object_size (a->buf, 3) != sizeof (a->buf))
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+ abort ();
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+ if (__builtin_object_size (&a->buf[0], 0) != s - o)
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+ abort ();
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+ if (__builtin_object_size (&a->buf[0], 1) != sizeof (a->buf))
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+ abort ();
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+ if (__builtin_object_size (&a->buf[0], 2) != s - o)
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+ abort ();
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+ if (__builtin_object_size (&a->buf[0], 3) != sizeof (a->buf))
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+ abort ();
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+ if (__builtin_object_size (&a->buf[6], 0) != s - o - 6)
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+ abort ();
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+ if (__builtin_object_size (&a->buf[6], 1) != sizeof (a->buf) - 6)
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+ abort ();
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+ if (__builtin_object_size (&a->buf[6], 2) != s - o - 6)
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+ abort ();
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+ if (__builtin_object_size (&a->buf[6], 3) != sizeof (a->buf) - 6)
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+ abort ();
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+ if (__builtin_object_size (b->buf, 0) != 212)
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+ abort ();
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+ if (__builtin_object_size (b->buf, 1) != 212)
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+ abort ();
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+ if (__builtin_object_size (b->buf, 2) != 212)
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+ abort ();
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+ if (__builtin_object_size (b->buf, 3) != 212)
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+ abort ();
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+ if (__builtin_object_size (&b->buf[0], 0) != 212)
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+ abort ();
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+ if (__builtin_object_size (&b->buf[0], 1) != 212)
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+ abort ();
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+ if (__builtin_object_size (&b->buf[0], 2) != 212)
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+ abort ();
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+ if (__builtin_object_size (&b->buf[0], 3) != 212)
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+ abort ();
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+ if (__builtin_object_size (&b->buf[28], 0) != 212 - 28)
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+ abort ();
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+ if (__builtin_object_size (&b->buf[28], 1) != 212 - 28)
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+ abort ();
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+ if (__builtin_object_size (&b->buf[28], 2) != 212 - 28)
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+ abort ();
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+ if (__builtin_object_size (&b->buf[28], 3) != 212 - 28)
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+ abort ();
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+ return 0;
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+}
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