diff options
| author | Richard Biener <rguenther@suse.de> | 2013-05-23 12:23:59 +0000 |
|---|---|---|
| committer | Richard Biener <rguenth@gcc.gnu.org> | 2013-05-23 12:23:59 +0000 |
| commit | ce521ae644954b0869428201225e85d8e86eaf2e (patch) | |
| tree | 817c953d76e27cedecd6b9e444751bfe1da13db0 /gcc/tree-ssa-phiprop.c | |
| parent | 75c7257f75227e3db09120e38562cf3a3c136ced (diff) | |
re PR tree-optimization/57380 (GCC 4.9.0 will not vectorize std::max and similar functions)
2013-05-23 Richard Biener <rguenther@suse.de>
PR tree-optimization/57380
* tree-ssa-phiprop.c (propagate_with_phi): Do not require at
least one invariant or re-used load.
* passes.c (init_optimization_passes): Move pass_phiprop before
pass_forwprop.
* g++.dg/tree-ssa/pr57380.C: New testcase.
From-SVN: r199246
Diffstat (limited to 'gcc/tree-ssa-phiprop.c')
| -rw-r--r-- | gcc/tree-ssa-phiprop.c | 10 |
1 files changed, 0 insertions, 10 deletions
diff --git a/gcc/tree-ssa-phiprop.c b/gcc/tree-ssa-phiprop.c index 6555ae344b7..96d7ba6a935 100644 --- a/gcc/tree-ssa-phiprop.c +++ b/gcc/tree-ssa-phiprop.c @@ -247,7 +247,6 @@ propagate_with_phi (basic_block bb, gimple phi, struct phiprop_d *phivn, ssa_op_iter i; bool phi_inserted; tree type = NULL_TREE; - bool one_invariant = false; if (!POINTER_TYPE_P (TREE_TYPE (ptr)) || !is_gimple_reg_type (TREE_TYPE (TREE_TYPE (ptr)))) @@ -282,17 +281,8 @@ propagate_with_phi (basic_block bb, gimple phi, struct phiprop_d *phivn, if (!type && TREE_CODE (arg) == SSA_NAME) type = TREE_TYPE (phivn[SSA_NAME_VERSION (arg)].value); - if (TREE_CODE (arg) == ADDR_EXPR - && is_gimple_min_invariant (arg)) - one_invariant = true; } - /* If we neither have an address of a decl nor can reuse a previously - inserted load, do not hoist anything. */ - if (!one_invariant - && !type) - return false; - /* Find a dereferencing use. First follow (single use) ssa copy chains for ptr. */ while (single_imm_use (ptr, &use, &use_stmt) |