diff options
Diffstat (limited to 'gcc/tree-ssanames.c')
| -rw-r--r-- | gcc/tree-ssanames.c | 24 |
1 files changed, 24 insertions, 0 deletions
diff --git a/gcc/tree-ssanames.c b/gcc/tree-ssanames.c index 4199290..7235dc3 100644 --- a/gcc/tree-ssanames.c +++ b/gcc/tree-ssanames.c @@ -23,6 +23,7 @@ along with GCC; see the file COPYING3. If not see #include "backend.h" #include "tree.h" #include "gimple.h" +#include "gimple-iterator.h" #include "hard-reg-set.h" #include "ssa.h" #include "alias.h" @@ -544,6 +545,29 @@ reset_flow_sensitive_info (tree name) SSA_NAME_RANGE_INFO (name) = NULL; } +/* Clear all flow sensitive data from all statements and PHI definitions + in BB. */ + +void +reset_flow_sensitive_info_in_bb (basic_block bb) +{ + for (gimple_stmt_iterator gsi = gsi_start_bb (bb); !gsi_end_p (gsi); + gsi_next (&gsi)) + { + gimple *stmt = gsi_stmt (gsi); + ssa_op_iter i; + tree op; + FOR_EACH_SSA_TREE_OPERAND (op, stmt, i, SSA_OP_DEF) + reset_flow_sensitive_info (op); + } + + for (gphi_iterator gsi = gsi_start_phis (bb); !gsi_end_p (gsi); + gsi_next (&gsi)) + { + tree phi_def = gimple_phi_result (gsi.phi ()); + reset_flow_sensitive_info (phi_def); + } +} /* Release all the SSA_NAMEs created by STMT. */ |