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| author | Jan Hubicka <jh@suse.cz> | 2019-05-29 20:13:51 +0200 |
|---|---|---|
| committer | Jan Hubicka <hubicka@gcc.gnu.org> | 2019-05-29 18:13:51 +0000 |
| commit | 01a58e36980830b8a3dfa426f912fce51f7104c4 (patch) | |
| tree | ddd50f62011ca58db283d81a7ee4ab4586197970 /gcc/tree-ssa-alias.c | |
| parent | 824e57cbf4115db5dfe90ed49ff9828cbcc14b02 (diff) | |
| download | gcc-01a58e36980830b8a3dfa426f912fce51f7104c4.zip gcc-01a58e36980830b8a3dfa426f912fce51f7104c4.tar.gz gcc-01a58e36980830b8a3dfa426f912fce51f7104c4.tar.bz2 | |
tree-ssa-alias.c (same_type_for_tbaa): Return ture if main variants are pointer equivalent.
* tree-ssa-alias.c (same_type_for_tbaa): Return ture if main
variants are pointer equivalent.
From-SVN: r271747
Diffstat (limited to 'gcc/tree-ssa-alias.c')
| -rw-r--r-- | gcc/tree-ssa-alias.c | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/gcc/tree-ssa-alias.c b/gcc/tree-ssa-alias.c index 33c15f5..3ecb337 100644 --- a/gcc/tree-ssa-alias.c +++ b/gcc/tree-ssa-alias.c @@ -787,6 +787,10 @@ same_type_for_tbaa (tree type1, tree type2) type1 = TYPE_MAIN_VARIANT (type1); type2 = TYPE_MAIN_VARIANT (type2); + /* Handle the most common case first. */ + if (type1 == type2) + return 1; + /* If we would have to do structural comparison bail out. */ if (TYPE_STRUCTURAL_EQUALITY_P (type1) || TYPE_STRUCTURAL_EQUALITY_P (type2)) |