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re PR c/31520 (Latent bug in finish_decl causing an errorous "array subscript is above array bounds") 

2007-04-14  Andrew Pinski  <andrew_pinski@playstation.sony.com>

        PR c/31520
        * c-del.c (finish_decl): Grab the type of the decl after the call
        to store_init_value.
2007-04-14  Andrew Pinski  <andrew_pinski@playstation.sony.com>

        PR C/31520
        * testsuite/gcc.dg/gnu89-init-4.c: New testcase.

From-SVN: r123835
This commit is contained in:
Andrew Pinski 2007-04-15 00:59:15 +00:00 committed by Andrew Pinski
parent f8b8c6d76d
commit aa24028daf
4 changed files with 26 additions and 1 deletions
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6
gcc/ChangeLog
View File

@ -1,3 +1,9 @@
2007-04-14 Andrew Pinski <andrew_pinski@playstation.sony.com>
PR c/31520
* c-del.c (finish_decl): Grab the type of the decl after the call
to store_init_value.
2007-04-14 Steven Bosscher <steven@gcc.gnu.org>
* common.opt (fforward-propagate): Fix "Optimization" annotation.

4
gcc/c-decl.c
View File

@ -3383,7 +3383,7 @@ c_maybe_initialize_eh (void)
void
finish_decl (tree decl, tree init, tree asmspec_tree)
{
tree type = TREE_TYPE (decl);
tree type;
int was_incomplete = (DECL_SIZE (decl) == 0);
const char *asmspec = 0;
@ -3410,6 +3410,8 @@ finish_decl (tree decl, tree init, tree asmspec_tree)
|| TREE_CODE (decl) == FIELD_DECL))
objc_check_decl (decl);
type = TREE_TYPE (decl);
/* Deduce size of array from initialization, if not already known. */
if (TREE_CODE (type) == ARRAY_TYPE
&& TYPE_DOMAIN (type) == 0

5
gcc/testsuite/ChangeLog
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@ -1,3 +1,8 @@
2007-04-14 Andrew Pinski <andrew_pinski@playstation.sony.com>
PR C/31520
* testsuite/gcc.dg/gnu89-init-4.c: New testcase.
2007-04-14 Jakub Jelinek <jakub@redhat.com>
PR c++/25874

12
gcc/testsuite/gcc.dg/gnu89-init-4.c Normal file
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@ -0,0 +1,12 @@
/* Test for GNU extensions to compound literals are giving the correct array bounds */
/* { dg-do run } */
/* { dg-options "-std=gnu89 -W -Wall -O2" } */
int a[] = (int[4]){1, 1, 2};
int f(void)
{
int sum = 0; int i;
for(i = 0;i<4;i++)
sum = a[i];
return sum;
}