mirror/gcc
2
0
Fork 0
mirror of git://gcc.gnu.org/git/gcc.git synced 2025-04-21 04:50:24 +08:00
Code Issues Packages Projects Releases Wiki Activity

c-typeck.c (really_start_incremental_init, [...]): Avoid constructor_max_index being other than an INTEGER_CST.

Browse Source 
* c-typeck.c (really_start_incremental_init, push_init_level):
	Avoid constructor_max_index being other than an INTEGER_CST.

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

From-SVN: r47539
This commit is contained in:
Joseph Myers 2001-12-03 00:09:34 +00:00 committed by Joseph Myers
parent 671f5733ff
commit 39bc99c265
4 changed files with 36 additions and 0 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

5
gcc/ChangeLog
View File

@ -1,3 +1,8 @@
2001-12-03 Joseph S. Myers <jsm28@cam.ac.uk>
* c-typeck.c (really_start_incremental_init, push_init_level):
Avoid constructor_max_index being other than an INTEGER_CST.
2001-12-02 David Edelsohn <edelsohn@gnu.org>
* config/rs6000/xcoff.h (ASM_OUTPUT_INTERNAL_LABEL): Display count

14
gcc/c-typeck.c
View File

@ -5259,6 +5259,13 @@ really_start_incremental_init (type)
&& TYPE_SIZE (constructor_type))
constructor_max_index = build_int_2 (-1, -1);
/* constructor_max_index needs to be an INTEGER_CST. Attempts
to initialize VLAs will cause an proper error; avoid tree
checking errors as well by setting a safe value. */
if (constructor_max_index
&& TREE_CODE (constructor_max_index) != INTEGER_CST)
constructor_max_index = build_int_2 (-1, -1);
constructor_index
= convert (bitsizetype,
TYPE_MIN_VALUE (TYPE_DOMAIN (constructor_type)));
@ -5426,6 +5433,13 @@ push_init_level (implicit)
&& TYPE_SIZE (constructor_type))
constructor_max_index = build_int_2 (-1, -1);
/* constructor_max_index needs to be an INTEGER_CST. Attempts
to initialize VLAs will cause an proper error; avoid tree
checking errors as well by setting a safe value. */
if (constructor_max_index
&& TREE_CODE (constructor_max_index) != INTEGER_CST)
constructor_max_index = build_int_2 (-1, -1);
constructor_index
= convert (bitsizetype,
TYPE_MIN_VALUE (TYPE_DOMAIN (constructor_type)));

4
gcc/testsuite/ChangeLog
View File

@ -1,3 +1,7 @@
2001-12-03 Joseph S. Myers <jsm28@cam.ac.uk>
* gcc.dg/vla-init-1.c: New test.
2001-12-01 Geoff Keating <geoffk@redhat.com>
* gcc.c-torture/compile/structs.c: New testcase from GDB.

13
gcc/testsuite/gcc.dg/vla-init-1.c Normal file
View File

@ -0,0 +1,13 @@
/* Test for tree-checking error when initializing a variable-length array
(not allowed): constructor_max_index needs to be an INTEGER_CST. */
/* Origin: Joseph Myers <jsm28@cam.ac.uk>. */
/* { dg-do compile } */
/* { dg-options "" } */
int a;
void
foo (void)
{
int x[a] = { 1 }; /* { dg-error "init" "VLA init" } */
}