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Diffstat (limited to 'gcc/tree-ssa-structalias.c')
| -rw-r--r-- | gcc/tree-ssa-structalias.c | 5 |
1 files changed, 5 insertions, 0 deletions
diff --git a/gcc/tree-ssa-structalias.c b/gcc/tree-ssa-structalias.c index 9f4de96..cf653be 100644 --- a/gcc/tree-ssa-structalias.c +++ b/gcc/tree-ssa-structalias.c @@ -4274,6 +4274,11 @@ handle_pure_call (gcall *stmt, vec<ce_s> *results) for (i = 0; i < gimple_call_num_args (stmt); ++i) { tree arg = gimple_call_arg (stmt, i); + int flags = gimple_call_arg_flags (stmt, i); + + /* If the argument is not used we can ignore it. */ + if (flags & EAF_UNUSED) + continue; if (!uses) { uses = get_call_use_vi (stmt); |