* [committed] Fix up 20071018-1.c testcase (PR testsuite/55504)
@ 2012-11-28 16:31 Jakub Jelinek
0 siblings, 0 replies; only message in thread
From: Jakub Jelinek @ 2012-11-28 16:31 UTC (permalink / raw)
To: gcc-patches
Hi!
As discussed on IRC, this testcase clobbers memory before malloc returned
chunk, fixed thusly, tested on x86_64-linux, committed to trunk.
2012-11-28 Jakub Jelinek <jakub@redhat.com>
PR testsuite/55504
* gcc.c-torture/execute/20071018-1.c (foo): Add noinline/noclone
attributes. Avoid clobbering memory before malloced chunk.
(main): Pass 1 instead of 0 as argument.
--- gcc/testsuite/gcc.c-torture/execute/20071018-1.c.jj 2008-09-05 12:54:12.000000000 +0200
+++ gcc/testsuite/gcc.c-torture/execute/20071018-1.c 2012-11-28 13:42:10.583890553 +0100
@@ -13,11 +13,11 @@ void __attribute__((noinline)) bar(struc
{
*f = __builtin_malloc(sizeof(struct foo));
}
-struct foo * foo(int rank)
+struct foo * __attribute__((noinline, noclone)) foo(int rank)
{
void *x = __builtin_malloc(sizeof(struct mem));
struct mem *as = x;
- struct foo **upper = &as->x[rank * 8 - 1];
+ struct foo **upper = &as->x[rank * 8 - 5];
*upper = 0;
bar(upper);
return *upper;
@@ -25,7 +25,7 @@ struct foo * foo(int rank)
int main()
{
- if (foo(0) == 0)
+ if (foo(1) == 0)
abort ();
return 0;
}
Jakub
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2012-11-28 16:31 [committed] Fix up 20071018-1.c testcase (PR testsuite/55504) Jakub Jelinek
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