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| author | Richard Guenther <rguenther@suse.de> | 2010-04-07 15:31:37 +0000 |
|---|---|---|
| committer | Richard Biener <rguenth@gcc.gnu.org> | 2010-04-07 15:31:37 +0000 |
| commit | 2ea9dc6459761bae70146f8ea85436f70eca25eb (patch) | |
| tree | 24b98f856ca6626ac198b3511f687951a4a1ec86 /gcc/tree-ssa-forwprop.c | |
| parent | 5fd5c97a3458128c95577bbff190795f39e4cdfb (diff) | |
| download | gcc-2ea9dc6459761bae70146f8ea85436f70eca25eb.zip gcc-2ea9dc6459761bae70146f8ea85436f70eca25eb.tar.gz gcc-2ea9dc6459761bae70146f8ea85436f70eca25eb.tar.bz2 | |
ipa-reference.c (mark_load): Use get_base_address.
2010-04-07 Richard Guenther <rguenther@suse.de>
* ipa-reference.c (mark_load): Use get_base_address.
(mark_store): Likewise.
* tree-ssa-ccp.c (gimplify_and_update_call_from_tree): Avoid
inserting GIMPLE_NOPs into the IL.
* tree-ssa-structalias.c (get_constraint_for_component_ref):
Explicitly strip handled components and indirect references.
* fold-const.c (fold_unary_loc): Do not strip qualifiers when
folding address expressions.
* gimple.c (gimple_ior_addresses_taken_1): Use get_base_address.
* tree-ssa-alias.c (decl_refs_may_alias_p): Do not use
operand_equal_p to compare decls.
(ptr_deref_may_alias_decl_p): Likewise.
* tree-ssa-operands.c (get_asm_expr_operands): Simplify
* tree-ssa-forwprop.c (forward_propagate_into_gimple_cond):
Handle reversed comparison ops.
* tree-sra.c (asm_visit_addr): Use get_base_address.
* ipa-prop.c (visit_store_addr_for_mod_analysis): Use
get_base_address.
* ipa-reference.c (mark_address): Use get_base_address.
From-SVN: r158069
Diffstat (limited to 'gcc/tree-ssa-forwprop.c')
| -rw-r--r-- | gcc/tree-ssa-forwprop.c | 22 |
1 files changed, 12 insertions, 10 deletions
diff --git a/gcc/tree-ssa-forwprop.c b/gcc/tree-ssa-forwprop.c index d7d378b..fc40bf4 100644 --- a/gcc/tree-ssa-forwprop.c +++ b/gcc/tree-ssa-forwprop.c @@ -398,25 +398,27 @@ forward_propagate_into_gimple_cond (gimple stmt) do { tree tmp = NULL_TREE; - tree name, rhs0 = NULL_TREE, rhs1 = NULL_TREE; + tree name = NULL_TREE, rhs0 = NULL_TREE, rhs1 = NULL_TREE; gimple def_stmt; bool single_use0_p = false, single_use1_p = false; enum tree_code code = gimple_cond_code (stmt); /* We can do tree combining on SSA_NAME and comparison expressions. */ - if (TREE_CODE_CLASS (gimple_cond_code (stmt)) == tcc_comparison - && TREE_CODE (gimple_cond_lhs (stmt)) == SSA_NAME) + if (TREE_CODE_CLASS (gimple_cond_code (stmt)) == tcc_comparison) { /* For comparisons use the first operand, that is likely to simplify comparisons against constants. */ - name = gimple_cond_lhs (stmt); - def_stmt = get_prop_source_stmt (name, false, &single_use0_p); - if (def_stmt && can_propagate_from (def_stmt)) + if (TREE_CODE (gimple_cond_lhs (stmt)) == SSA_NAME) { - tree op1 = gimple_cond_rhs (stmt); - rhs0 = rhs_to_tree (TREE_TYPE (op1), def_stmt); - tmp = combine_cond_expr_cond (loc, code, boolean_type_node, rhs0, - op1, !single_use0_p); + name = gimple_cond_lhs (stmt); + def_stmt = get_prop_source_stmt (name, false, &single_use0_p); + if (def_stmt && can_propagate_from (def_stmt)) + { + tree op1 = gimple_cond_rhs (stmt); + rhs0 = rhs_to_tree (TREE_TYPE (op1), def_stmt); + tmp = combine_cond_expr_cond (loc, code, boolean_type_node, + rhs0, op1, !single_use0_p); + } } /* If that wasn't successful, try the second operand. */ if (tmp == NULL_TREE |