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| author | Richard Guenther <rguenther@suse.de> | 2011-09-08 09:21:39 +0000 |
|---|---|---|
| committer | Richard Biener <rguenth@gcc.gnu.org> | 2011-09-08 09:21:39 +0000 |
| commit | c22c0db26ad16673415d7523781fcf80c8e545ba (patch) | |
| tree | cacd1b123bb8053812cddbd152f5ddd2121054b5 /gcc/testsuite | |
| parent | 88b7601303a76eae0d7b831014cba0ff96360e73 (diff) | |
| download | gcc-c22c0db26ad16673415d7523781fcf80c8e545ba.zip gcc-c22c0db26ad16673415d7523781fcf80c8e545ba.tar.gz gcc-c22c0db26ad16673415d7523781fcf80c8e545ba.tar.bz2 | |
re PR tree-optimization/19831 (Missing DSE/malloc/free optimization)
2011-09-08 Richard Guenther <rguenther@suse.de>
PR tree-optimization/19831
* tree-ssa-dce.c (mark_stmt_if_obviously_necessary): Do not mark
allocation functions as necessary.
* gcc.dg/tree-ssa/ssa-dce-8.c: New testcase.
From-SVN: r178683
Diffstat (limited to 'gcc/testsuite')
| -rw-r--r-- | gcc/testsuite/ChangeLog | 5 | ||||
| -rw-r--r-- | gcc/testsuite/gcc.dg/tree-ssa/ssa-dce-8.c | 12 |
2 files changed, 17 insertions, 0 deletions
diff --git a/gcc/testsuite/ChangeLog b/gcc/testsuite/ChangeLog index 18b487d..b432683 100644 --- a/gcc/testsuite/ChangeLog +++ b/gcc/testsuite/ChangeLog @@ -1,3 +1,8 @@ +2011-09-08 Richard Guenther <rguenther@suse.de> + + PR tree-optimization/19831 + * gcc.dg/tree-ssa/ssa-dce-8.c: New testcase. + 2011-09-08 Tobias Burnus <burnus@net-b.de> PR fortran/44646 diff --git a/gcc/testsuite/gcc.dg/tree-ssa/ssa-dce-8.c b/gcc/testsuite/gcc.dg/tree-ssa/ssa-dce-8.c new file mode 100644 index 0000000..689eb99 --- /dev/null +++ b/gcc/testsuite/gcc.dg/tree-ssa/ssa-dce-8.c @@ -0,0 +1,12 @@ +/* { dg-do compile } */ +/* { dg-options "-O -fdump-tree-optimized" } */ + +int main() +{ + int *p = __builtin_malloc (4); + *p = 4; + return 0; +} + +/* { dg-final { scan-tree-dump-not "malloc" "optimized" } } */ +/* { dg-final { cleanup-tree-dump "optimized" } } */ |