diff options
Diffstat (limited to 'gcc')
| -rw-r--r-- | gcc/tree-ssa-ccp.cc | 9 |
1 files changed, 7 insertions, 2 deletions
diff --git a/gcc/tree-ssa-ccp.cc b/gcc/tree-ssa-ccp.cc index 3e0c75c..13cd81d 100644 --- a/gcc/tree-ssa-ccp.cc +++ b/gcc/tree-ssa-ccp.cc @@ -2567,7 +2567,12 @@ insert_clobber_before_stack_restore (tree saved_val, tree var, { clobber = build_clobber (TREE_TYPE (var), CLOBBER_STORAGE_END); clobber_stmt = gimple_build_assign (var, clobber); - + /* Manually update the vdef/vuse here. */ + gimple_set_vuse (clobber_stmt, gimple_vuse (stmt)); + gimple_set_vdef (clobber_stmt, make_ssa_name (gimple_vop (cfun))); + gimple_set_vuse (stmt, gimple_vdef (clobber_stmt)); + SSA_NAME_DEF_STMT (gimple_vdef (clobber_stmt)) = clobber_stmt; + update_stmt (stmt); i = gsi_for_stmt (stmt); gsi_insert_before (&i, clobber_stmt, GSI_SAME_STMT); } @@ -3020,7 +3025,7 @@ do_ssa_ccp (bool nonzero_p) ccp_propagate.ssa_propagate (); if (ccp_finalize (nonzero_p || flag_ipa_bit_cp)) { - todo = (TODO_cleanup_cfg | TODO_update_ssa); + todo = TODO_cleanup_cfg; /* ccp_finalize does not preserve loop-closed ssa. */ loops_state_clear (LOOP_CLOSED_SSA); |