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| author | Joseph Myers <joseph@codesourcery.com> | 2009-04-19 21:19:54 +0100 |
|---|---|---|
| committer | Joseph Myers <jsm28@gcc.gnu.org> | 2009-04-19 21:19:54 +0100 |
| commit | 20845d35828c2d166550453b14b6e52c5f3b2826 (patch) | |
| tree | 2e5869de2295a44145f76f4263566f9795bec72b /gcc | |
| parent | 28143fdd2fcabc7d35df8a2e875e684b5c3f7904 (diff) | |
| download | gcc-20845d35828c2d166550453b14b6e52c5f3b2826.zip gcc-20845d35828c2d166550453b14b6e52c5f3b2826.tar.gz gcc-20845d35828c2d166550453b14b6e52c5f3b2826.tar.bz2 | |
re PR c/19771 (VLA deallocation)
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
Diffstat (limited to 'gcc')
| -rw-r--r-- | gcc/ChangeLog | 6 | ||||
| -rw-r--r-- | gcc/c-semantics.c | 2 | ||||
| -rw-r--r-- | gcc/testsuite/ChangeLog | 5 | ||||
| -rw-r--r-- | gcc/testsuite/gcc.c-torture/execute/vla-dealloc-1.c | 22 |
4 files changed, 35 insertions, 0 deletions
diff --git a/gcc/ChangeLog b/gcc/ChangeLog index a7dcc8e..01488bf 100644 --- a/gcc/ChangeLog +++ b/gcc/ChangeLog @@ -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. diff --git a/gcc/c-semantics.c b/gcc/c-semantics.c index 3c7b241..b6c3a27 100644 --- a/gcc/c-semantics.c +++ b/gcc/c-semantics.c @@ -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; diff --git a/gcc/testsuite/ChangeLog b/gcc/testsuite/ChangeLog index fd41b32..a3e266b 100644 --- a/gcc/testsuite/ChangeLog +++ b/gcc/testsuite/ChangeLog @@ -1,5 +1,10 @@ 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 * gcc.dg/c99-restrict-3.c: New test. diff --git a/gcc/testsuite/gcc.c-torture/execute/vla-dealloc-1.c b/gcc/testsuite/gcc.c-torture/execute/vla-dealloc-1.c new file mode 100644 index 0000000..f2291ad --- /dev/null +++ b/gcc/testsuite/gcc.c-torture/execute/vla-dealloc-1.c @@ -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; +} |