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| author | Bin Cheng <bin.cheng@arm.com> | 2013-06-13 08:44:38 +0000 |
|---|---|---|
| committer | Bin Cheng <amker@gcc.gnu.org> | 2013-06-13 08:44:38 +0000 |
| commit | a8355e51785ca09eadc0e56afd0778c4ce076e2f (patch) | |
| tree | e79eeaa5ba12fc1b03e3d4ac020f07f2d9953b20 | |
| parent | 8f7e6e330bbd903c6c104fc016589b6ab6d04027 (diff) | |
| download | gcc-a8355e51785ca09eadc0e56afd0778c4ce076e2f.zip gcc-a8355e51785ca09eadc0e56afd0778c4ce076e2f.tar.gz gcc-a8355e51785ca09eadc0e56afd0778c4ce076e2f.tar.bz2 | |
fold-const.c (operand_equal_p): Consider NOP_EXPR and CONVERT_EXPR as equal nodes.
* fold-const.c (operand_equal_p): Consider NOP_EXPR and
CONVERT_EXPR as equal nodes.
From-SVN: r200062
| -rw-r--r-- | gcc/ChangeLog | 5 | ||||
| -rw-r--r-- | gcc/fold-const.c | 10 |
2 files changed, 12 insertions, 3 deletions
diff --git a/gcc/ChangeLog b/gcc/ChangeLog index 1d498f8..587c9b1 100644 --- a/gcc/ChangeLog +++ b/gcc/ChangeLog @@ -1,5 +1,10 @@ 2013-06-13 Bin Cheng <bin.cheng@arm.com> + * fold-const.c (operand_equal_p): Consider NOP_EXPR and + CONVERT_EXPR as equal nodes. + +2013-06-13 Bin Cheng <bin.cheng@arm.com> + * rtlanal.c (noop_move_p): Check the code to be executed for COND_EXEC. diff --git a/gcc/fold-const.c b/gcc/fold-const.c index 66e565c..998948b 100644 --- a/gcc/fold-const.c +++ b/gcc/fold-const.c @@ -2473,9 +2473,13 @@ operand_equal_p (const_tree arg0, const_tree arg1, unsigned int flags) } if (TREE_CODE (arg0) != TREE_CODE (arg1) - /* This is needed for conversions and for COMPONENT_REF. - Might as well play it safe and always test this. */ - || TREE_CODE (TREE_TYPE (arg0)) == ERROR_MARK + /* NOP_EXPR and CONVERT_EXPR are considered equal. */ + && !(CONVERT_EXPR_P (arg0) && CONVERT_EXPR_P (arg1))) + return 0; + + /* This is needed for conversions and for COMPONENT_REF. + Might as well play it safe and always test this. */ + if (TREE_CODE (TREE_TYPE (arg0)) == ERROR_MARK || TREE_CODE (TREE_TYPE (arg1)) == ERROR_MARK || TYPE_MODE (TREE_TYPE (arg0)) != TYPE_MODE (TREE_TYPE (arg1))) return 0; |