diff options
| author | Jan Hubicka <hubicka@ucw.cz> | 2015-10-21 23:12:05 +0200 |
|---|---|---|
| committer | Jan Hubicka <hubicka@gcc.gnu.org> | 2015-10-21 21:12:05 +0000 |
| commit | 1567db2f02e005b7a3349aedf0afb37c36260beb (patch) | |
| tree | d49fbba1fc1f57ae6b2bf82b7ae886bec54401ad /gcc/fold-const.c | |
| parent | c26065cc38586f9d014b0f04a54dfa0e52c23189 (diff) | |
| download | gcc-1567db2f02e005b7a3349aedf0afb37c36260beb.zip gcc-1567db2f02e005b7a3349aedf0afb37c36260beb.tar.gz gcc-1567db2f02e005b7a3349aedf0afb37c36260beb.tar.bz2 | |
fold-const.c (operand_equal_p): Add code matching empty constructors.
* fold-const.c (operand_equal_p): Add code matching empty
constructors.
* gcc.dg/tree-ssa/operand-equal-1.c: Verify that empty constructors
are matched.
From-SVN: r229147
Diffstat (limited to 'gcc/fold-const.c')
| -rw-r--r-- | gcc/fold-const.c | 5 |
1 files changed, 5 insertions, 0 deletions
diff --git a/gcc/fold-const.c b/gcc/fold-const.c index b7874a0..602ea24 100644 --- a/gcc/fold-const.c +++ b/gcc/fold-const.c @@ -2891,6 +2891,11 @@ operand_equal_p (const_tree arg0, const_tree arg1, unsigned int flags) return operand_equal_p (TREE_OPERAND (arg0, 0), TREE_OPERAND (arg1, 0), flags | OEP_ADDRESS_OF | OEP_CONSTANT_ADDRESS_OF); + case CONSTRUCTOR: + /* In GIMPLE empty constructors are allowed in initializers of + aggregates. */ + return (!vec_safe_length (CONSTRUCTOR_ELTS (arg0)) + && !vec_safe_length (CONSTRUCTOR_ELTS (arg1))); default: break; } |