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re PR c/19771 (VLA deallocation)

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PR c/19771
	* c-semantics.c (pop_stmt_list): Propagate
	STATEMENT_LIST_HAS_LABEL to parent statement list.

testsuite:
	* gcc.c-torture/execute/vla-dealloc-1.c: New test.

From-SVN: r146358
This commit is contained in:
Joseph Myers 2009-04-19 21:19:54 +01:00 committed by Joseph Myers
parent 28143fdd2f
commit 20845d3582
4 changed files with 35 additions and 0 deletions
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6
gcc/ChangeLog
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@ -1,3 +1,9 @@
2009-04-19 Joseph Myers <joseph@codesourcery.com>
PR c/19771
* c-semantics.c (pop_stmt_list): Propagate
STATEMENT_LIST_HAS_LABEL to parent statement list.
2009-04-19 Adam Nemet <anemet@caviumnetworks.com>
* config/mips/mips.h (mips_tune_attr): New macro.

2
gcc/c-semantics.c
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@ -70,6 +70,8 @@ pop_stmt_list (tree t)
{
chain = TREE_CHAIN (u);
TREE_CHAIN (u) = NULL_TREE;
if (chain)
STATEMENT_LIST_HAS_LABEL (chain) |= STATEMENT_LIST_HAS_LABEL (u);
if (t == u)
break;
u = chain;

5
gcc/testsuite/ChangeLog
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@ -1,3 +1,8 @@
2009-04-19 Joseph Myers <joseph@codesourcery.com>
PR c/19771
* gcc.c-torture/execute/vla-dealloc-1.c: New test.
2009-04-19 Joseph Myers <joseph@codesourcery.com>
PR c/38243

22
gcc/testsuite/gcc.c-torture/execute/vla-dealloc-1.c Normal file
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@ -0,0 +1,22 @@
/* VLAs should be deallocated on a jump to before their definition,
including a jump to a label in an inner scope. PR 19771. */
void *volatile p;
int
main (void)
{
int n = 0;
if (0)
{
lab:;
}
int x[n % 1000 + 1];
x[0] = 1;
x[n % 1000] = 2;
p = x;
n++;
if (n < 1000000)
goto lab;
return 0;
}