diff options
| author | jakub <jakub@138bc75d-0d04-0410-961f-82ee72b054a4> | 2013-11-23 14:21:46 +0000 |
|---|---|---|
| committer | jakub <jakub@138bc75d-0d04-0410-961f-82ee72b054a4> | 2013-11-23 14:21:46 +0000 |
| commit | 4c0d6cf74a85d567ad2bcf57ae51646ee2fedd20 (patch) | |
| tree | 3588f3e5d92d09b275560f857be2669c3ba82fcb /gcc/tree-ssa-reassoc.c | |
| parent | 96188d906779ec71bfb51572bab4ec8a4c094f4b (diff) | |
| download | gcc-4c0d6cf74a85d567ad2bcf57ae51646ee2fedd20.tar.gz | |
PR tree-optimization/59154
* tree-ssa-reassoc.c (maybe_optimize_range_tests): When changing
rhs1 of a cast and new_op is invariant, fold_convert it.
* tree-ssa-forwprop.c (ssa_forward_propagate_and_combine): Only call
simplify_conversion_from_bitmask if rhs1 is a SSA_NAME.
git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@205307 138bc75d-0d04-0410-961f-82ee72b054a4
Diffstat (limited to 'gcc/tree-ssa-reassoc.c')
| -rw-r--r-- | gcc/tree-ssa-reassoc.c | 12 |
1 files changed, 9 insertions, 3 deletions
diff --git a/gcc/tree-ssa-reassoc.c b/gcc/tree-ssa-reassoc.c index 9daf28f6d07..7145559d697 100644 --- a/gcc/tree-ssa-reassoc.c +++ b/gcc/tree-ssa-reassoc.c @@ -2935,9 +2935,15 @@ maybe_optimize_range_tests (gimple stmt) tree new_lhs = make_ssa_name (TREE_TYPE (lhs), NULL); enum tree_code rhs_code = gimple_assign_rhs_code (cast_stmt); - gimple g - = gimple_build_assign_with_ops (rhs_code, new_lhs, - new_op, NULL_TREE); + gimple g; + if (is_gimple_min_invariant (new_op)) + { + new_op = fold_convert (TREE_TYPE (lhs), new_op); + g = gimple_build_assign (new_lhs, new_op); + } + else + g = gimple_build_assign_with_ops (rhs_code, new_lhs, + new_op, NULL_TREE); gimple_stmt_iterator gsi = gsi_for_stmt (cast_stmt); gimple_set_uid (g, gimple_uid (cast_stmt)); gimple_set_visited (g, true); |