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| author | law <law@138bc75d-0d04-0410-961f-82ee72b054a4> | 2005-11-10 18:31:07 +0000 |
|---|---|---|
| committer | law <law@138bc75d-0d04-0410-961f-82ee72b054a4> | 2005-11-10 18:31:07 +0000 |
| commit | f7449ceb0875fd2f633356e0060ae12cf83bc6b6 (patch) | |
| tree | 985d6ecda4b0e82d74fab2b97185ebb8799a4eb5 /gcc/tree-ssa-dom.c | |
| parent | f7741cb166d978ce30a573a0905f7aad4eac9ccd (diff) | |
| download | gcc-f7449ceb0875fd2f633356e0060ae12cf83bc6b6.tar.gz | |
* tree-ssa-dom.c (simplify_rhs_and_lookup_avail_expr): Do not
perform reassociation if the parent statement will not die as
a result of the optimization.
git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@106744 138bc75d-0d04-0410-961f-82ee72b054a4
Diffstat (limited to 'gcc/tree-ssa-dom.c')
| -rw-r--r-- | gcc/tree-ssa-dom.c | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/gcc/tree-ssa-dom.c b/gcc/tree-ssa-dom.c index cb5eeb03a2f..1e0ebbce9a5 100644 --- a/gcc/tree-ssa-dom.c +++ b/gcc/tree-ssa-dom.c @@ -1794,6 +1794,7 @@ simplify_rhs_and_lookup_avail_expr (tree stmt, int insert) assignment. Add minus to this, as we handle it specially below. */ if ((associative_tree_code (rhs_code) || rhs_code == MINUS_EXPR) && TREE_CODE (TREE_OPERAND (rhs, 0)) == SSA_NAME + && num_imm_uses (TREE_OPERAND (rhs, 0)) == 1 && is_gimple_min_invariant (TREE_OPERAND (rhs, 1))) { tree rhs_def_stmt = SSA_NAME_DEF_STMT (TREE_OPERAND (rhs, 0)); |