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re PR c/22308 (Failure to diagnose violation of constraint 6.516p2)

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PR c/22308
	* c-decl.c (finish_struct): Also copy C_TYPE_FIELDS_READONLY,
	C_TYPE_FIELDS_VOLATILE and C_TYPE_VARIABLE_SIZE to type variants.

testsuite:
	* gcc.dg/pr22308-1.c: New test.

From-SVN: r101629
This commit is contained in:
Joseph Myers 2005-07-05 18:34:29 +01:00 committed by Joseph Myers
parent 2d95cce3c9
commit 692a7aa3a5
4 changed files with 27 additions and 0 deletions
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6
gcc/ChangeLog
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@ -1,3 +1,9 @@
2005-07-05 Joseph S. Myers <joseph@codesourcery.com>
PR c/22308
* c-decl.c (finish_struct): Also copy C_TYPE_FIELDS_READONLY,
C_TYPE_FIELDS_VOLATILE and C_TYPE_VARIABLE_SIZE to type variants.
2005-07-05 Paolo Bonzini <bonzini@gnu.org>
* Makefile.in: Adjust dependencies.

3
gcc/c-decl.c
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@ -5420,6 +5420,9 @@ finish_struct (tree t, tree fieldlist, tree attributes)
TYPE_LANG_SPECIFIC (x) = TYPE_LANG_SPECIFIC (t);
TYPE_ALIGN (x) = TYPE_ALIGN (t);
TYPE_USER_ALIGN (x) = TYPE_USER_ALIGN (t);
C_TYPE_FIELDS_READONLY (x) = C_TYPE_FIELDS_READONLY (t);
C_TYPE_FIELDS_VOLATILE (x) = C_TYPE_FIELDS_VOLATILE (t);
C_TYPE_VARIABLE_SIZE (x) = C_TYPE_VARIABLE_SIZE (t);
}
/* If this was supposed to be a transparent union, but we can't

5
gcc/testsuite/ChangeLog
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@ -1,3 +1,8 @@
2005-07-05 Joseph S. Myers <joseph@codesourcery.com>
PR c/22308
* gcc.dg/pr22308-1.c: New test.
2005-07-05 Kazu Hirata <kazu@codesourcery.com>
* gcc.dg/compare1.c: Add -fno-short-enums. Don't skip on any

13
gcc/testsuite/gcc.dg/pr22308-1.c Normal file
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@ -0,0 +1,13 @@
/* Bug 22308: C_TYPE_FIELDS_READONLY not updated on type variants. */
/* { dg-do compile } */
/* { dg-options "" } */
struct foo s;
volatile struct foo t;
struct foo { const int z; };
void
bar (void)
{
t = s; /* { dg-error "error: assignment of read-only variable 't'" } */
}