diff options
Diffstat (limited to 'gcc/gimple-range-gori.cc')
| -rw-r--r-- | gcc/gimple-range-gori.cc | 20 |
1 files changed, 9 insertions, 11 deletions
diff --git a/gcc/gimple-range-gori.cc b/gcc/gimple-range-gori.cc index fb2d571ef44..911d7ac4ec8 100644 --- a/gcc/gimple-range-gori.cc +++ b/gcc/gimple-range-gori.cc @@ -331,7 +331,6 @@ range_def_chain::get_def_chain (tree name) { tree ssa1, ssa2, ssa3; unsigned v = SSA_NAME_VERSION (name); - bool is_logical = false; // If it has already been processed, just return the cached value. if (has_def_chain (name)) @@ -348,15 +347,6 @@ range_def_chain::get_def_chain (tree name) gimple *stmt = SSA_NAME_DEF_STMT (name); if (gimple_range_handler (stmt)) { - is_logical = is_gimple_logical_p (stmt); - // Terminate the def chains if we see too many cascading logical stmts. - if (is_logical) - { - if (m_logical_depth == param_ranger_logical_depth) - return NULL; - m_logical_depth++; - } - ssa1 = gimple_range_ssa_p (gimple_range_operand1 (stmt)); ssa2 = gimple_range_ssa_p (gimple_range_operand2 (stmt)); ssa3 = NULL_TREE; @@ -376,6 +366,14 @@ range_def_chain::get_def_chain (tree name) return NULL; } + // Terminate the def chains if we see too many cascading stmts. + if (m_logical_depth == param_ranger_logical_depth) + return NULL; + + // Increase the depth if we have a pair of ssa-names. + if (ssa1 && ssa2) + m_logical_depth++; + register_dependency (name, ssa1, gimple_bb (stmt)); register_dependency (name, ssa2, gimple_bb (stmt)); register_dependency (name, ssa3, gimple_bb (stmt)); @@ -383,7 +381,7 @@ range_def_chain::get_def_chain (tree name) if (!ssa1 && !ssa2 & !ssa3) set_import (m_def_chain[v], name, NULL); - if (is_logical) + if (ssa1 && ssa2) m_logical_depth--; return m_def_chain[v].bm; |