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Diffstat (limited to 'gcc/tree-ssa-tail-merge.c')
| -rw-r--r-- | gcc/tree-ssa-tail-merge.c | 8 |
1 files changed, 5 insertions, 3 deletions
diff --git a/gcc/tree-ssa-tail-merge.c b/gcc/tree-ssa-tail-merge.c index f2ab7444..d014b71 100644 --- a/gcc/tree-ssa-tail-merge.c +++ b/gcc/tree-ssa-tail-merge.c @@ -176,6 +176,11 @@ along with GCC; see the file COPYING3. If not see - handle blocks with gimple_reg phi_nodes. + PASS PLACEMENT + This 'pass' is not a stand-alone gimple pass, but runs as part of + pass_pre, in order to share the value numbering. + + SWITCHES - ftree-tail-merge. On at -O2. We may have to enable it only at -Os. */ @@ -198,9 +203,6 @@ along with GCC; see the file COPYING3. If not see #include "tree-ssa-sccvn.h" #include "tree-dump.h" #include "cfgloop.h" - -/* ??? This currently runs as part of tree-ssa-pre. Why is this not - a stand-alone GIMPLE pass? */ #include "tree-pass.h" /* Describes a group of bbs with the same successors. The successor bbs are |