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Diffstat (limited to 'gcc/tree-ssa-threadbackward.c')
| -rw-r--r-- | gcc/tree-ssa-threadbackward.c | 6 |
1 files changed, 5 insertions, 1 deletions
diff --git a/gcc/tree-ssa-threadbackward.c b/gcc/tree-ssa-threadbackward.c index 747296b..6f1b757 100644 --- a/gcc/tree-ssa-threadbackward.c +++ b/gcc/tree-ssa-threadbackward.c @@ -311,7 +311,11 @@ fsm_find_control_statement_thread_paths (tree name, gphi *phi = gsip.phi (); tree dst = gimple_phi_result (phi); - if (SSA_NAME_VAR (dst) != SSA_NAME_VAR (name) + /* Note that if both NAME and DST are anonymous + SSA_NAMEs, then we do not have enough information + to consider them associated. */ + if ((SSA_NAME_VAR (dst) != SSA_NAME_VAR (name) + || !SSA_NAME_VAR (dst)) && !virtual_operand_p (dst)) ++n_insns; } |