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| author | Martin Liska <mliska@suse.cz> | 2014-09-03 14:42:01 +0200 |
|---|---|---|
| committer | Martin Liska <marxin@gcc.gnu.org> | 2014-09-03 12:42:01 +0000 |
| commit | 27732ffd5852437ad67b4074edb70b8c29316590 (patch) | |
| tree | 3e4597919e8887e30d4c0a1bd62d6d240735204a | |
| parent | a0d3407e32c20a47e43b861908df1bba6260f357 (diff) | |
| download | gcc-27732ffd5852437ad67b4074edb70b8c29316590.zip gcc-27732ffd5852437ad67b4074edb70b8c29316590.tar.gz gcc-27732ffd5852437ad67b4074edb70b8c29316590.tar.bz2 | |
Fix for tree-ssa-pre
* tree-ssa-sccvn.c (vn_reference_lookup_call): default (NULL) value
is set to preserve uninitialized value for vnresult.
From-SVN: r214873
| -rw-r--r-- | gcc/ChangeLog | 5 | ||||
| -rw-r--r-- | gcc/tree-ssa-sccvn.c | 3 |
2 files changed, 8 insertions, 0 deletions
diff --git a/gcc/ChangeLog b/gcc/ChangeLog index cfec7b4..e59e0d7 100644 --- a/gcc/ChangeLog +++ b/gcc/ChangeLog @@ -1,3 +1,8 @@ +2014-09-03 Martin Liska <mliska@suse.cz> + + * tree-ssa-sccvn.c (vn_reference_lookup_call): default (NULL) value + is set to set uninitialized value for vnresult. + 2014-09-03 Chung-Ju Wu <jasonwucj@gmail.com> * config/nds32/nds32.c (nds32_must_pass_in_stack): New implementation diff --git a/gcc/tree-ssa-sccvn.c b/gcc/tree-ssa-sccvn.c index 1bcbde3..44656ea 100644 --- a/gcc/tree-ssa-sccvn.c +++ b/gcc/tree-ssa-sccvn.c @@ -2146,6 +2146,9 @@ void vn_reference_lookup_call (gimple call, vn_reference_t *vnresult, vn_reference_t vr) { + if (vnresult) + *vnresult = NULL; + tree vuse = gimple_vuse (call); vr->vuse = vuse ? SSA_VAL (vuse) : NULL_TREE; |