diff options
| author | Jiong Wang <jiwang@gcc.gnu.org> | 2014-11-07 11:08:30 +0000 |
|---|---|---|
| committer | Jiong Wang <jiwang@gcc.gnu.org> | 2014-11-07 11:08:30 +0000 |
| commit | 8c00ba08c614069a590c673fe20afe9a5f1f55fe (patch) | |
| tree | 8b3c69d5e0884512063a3a8e1706f27f75531c19 | |
| parent | ad6f996c03a59af22368102961cd6a5493943d11 (diff) | |
| download | gcc-8c00ba08c614069a590c673fe20afe9a5f1f55fe.zip gcc-8c00ba08c614069a590c673fe20afe9a5f1f55fe.tar.gz gcc-8c00ba08c614069a590c673fe20afe9a5f1f55fe.tar.bz2 | |
[PATCH] PR63676, exit tree fold when node be TREE_CLOBBER_P
gcc/
PR tree-optimization/63676
* gimple-fold.c (fold_gimple_assign): Do not fold node when
TREE_CLOBBER_P be true.
From-SVN: r217215
| -rw-r--r-- | gcc/ChangeLog | 7 | ||||
| -rw-r--r-- | gcc/gimple-fold.c | 3 |
2 files changed, 10 insertions, 0 deletions
diff --git a/gcc/ChangeLog b/gcc/ChangeLog index 88b7422..7535286 100644 --- a/gcc/ChangeLog +++ b/gcc/ChangeLog @@ -1,3 +1,10 @@ +2014-11-07 Jiong Wang <jiong.wang@arm.com> +2014-11-07 Richard Biener <rguenther@suse.de> + + PR tree-optimization/63676 + * gimple-fold.c (fold_gimple_assign): Do not fold node when + TREE_CLOBBER_P be true. + 2014-11-07 Richard Biener <rguenther@suse.de> PR middle-end/63770 diff --git a/gcc/gimple-fold.c b/gcc/gimple-fold.c index 547f9a7..71e4638 100644 --- a/gcc/gimple-fold.c +++ b/gcc/gimple-fold.c @@ -320,6 +320,9 @@ fold_gimple_assign (gimple_stmt_iterator *si) { tree rhs = gimple_assign_rhs1 (stmt); + if (TREE_CLOBBER_P (rhs)) + return NULL_TREE; + if (REFERENCE_CLASS_P (rhs)) return maybe_fold_reference (rhs, false); |