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| author | Alan Lawrence <alan.lawrence@arm.com> | 2015-09-01 10:51:43 +0000 |
|---|---|---|
| committer | Alan Lawrence <alalaw01@gcc.gnu.org> | 2015-09-01 10:51:43 +0000 |
| commit | 0b49d67bbdb381e38fc8dcdea1e5cf7e81034566 (patch) | |
| tree | 52304573bfde137d2005f61f30e5aa2e8d5ba02f /gcc/tree-ssa-dom.c | |
| parent | 660adea45e1faa109e0b799824ca8340371f60d1 (diff) | |
| download | gcc-0b49d67bbdb381e38fc8dcdea1e5cf7e81034566.zip gcc-0b49d67bbdb381e38fc8dcdea1e5cf7e81034566.tar.gz gcc-0b49d67bbdb381e38fc8dcdea1e5cf7e81034566.tar.bz2 | |
Tidy tree-ssa-dom.c: Use dom_valueize more.
* tree-ssa-dom.c (record_equivalences_from_phis,
record_equivalences_from_stmt, optimize_stmt): Use dom_valueize.
(lookup_avail_expr): Likewise, and remove comment and unused temp.
From-SVN: r227366
Diffstat (limited to 'gcc/tree-ssa-dom.c')
| -rw-r--r-- | gcc/tree-ssa-dom.c | 31 |
1 files changed, 4 insertions, 27 deletions
diff --git a/gcc/tree-ssa-dom.c b/gcc/tree-ssa-dom.c index 248b037..a26ae55 100644 --- a/gcc/tree-ssa-dom.c +++ b/gcc/tree-ssa-dom.c @@ -1577,12 +1577,7 @@ record_equivalences_from_phis (basic_block bb) if (lhs == t) continue; - /* Valueize t. */ - if (TREE_CODE (t) == SSA_NAME) - { - tree tmp = SSA_NAME_VALUE (t); - t = tmp ? tmp : t; - } + t = dom_valueize (t); /* If we have not processed an alternative yet, then set RHS to this alternative. */ @@ -2160,12 +2155,7 @@ record_equivalences_from_stmt (gimple stmt, int may_optimize_p) && (TREE_CODE (rhs) == SSA_NAME || is_gimple_min_invariant (rhs))) { - /* Valueize rhs. */ - if (TREE_CODE (rhs) == SSA_NAME) - { - tree tmp = SSA_NAME_VALUE (rhs); - rhs = tmp ? tmp : rhs; - } + rhs = dom_valueize (rhs); if (dump_file && (dump_flags & TDF_DETAILS)) { @@ -2442,12 +2432,7 @@ optimize_stmt (basic_block bb, gimple_stmt_iterator si) tree rhs = gimple_assign_rhs1 (stmt); tree cached_lhs; gassign *new_stmt; - if (TREE_CODE (rhs) == SSA_NAME) - { - tree tem = SSA_NAME_VALUE (rhs); - if (tem) - rhs = tem; - } + rhs = dom_valueize (rhs); /* Build a new statement with the RHS and LHS exchanged. */ if (TREE_CODE (rhs) == SSA_NAME) { @@ -2569,7 +2554,6 @@ lookup_avail_expr (gimple stmt, bool insert) { expr_hash_elt **slot; tree lhs; - tree temp; struct expr_hash_elt element; /* Get LHS of phi, assignment, or call; else NULL_TREE. */ @@ -2664,14 +2648,7 @@ lookup_avail_expr (gimple stmt, bool insert) definition of another variable. */ lhs = (*slot)->lhs; - /* See if the LHS appears in the CONST_AND_COPIES table. If it does, then - use the value from the const_and_copies table. */ - if (TREE_CODE (lhs) == SSA_NAME) - { - temp = SSA_NAME_VALUE (lhs); - if (temp) - lhs = temp; - } + lhs = dom_valueize (lhs); if (dump_file && (dump_flags & TDF_DETAILS)) { |