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Skip EAF_UNUSED parameters in handle_pure_call

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* tree-ssa-structalias.c (handle_pure_call): Skip EAF_UNUSED
	 parameters.
This commit is contained in:
Jan Hubicka 2020-11-29 16:31:47 +01:00
parent 3350e59f29
commit 01148fa656
1 changed files with 5 additions and 0 deletions
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5
gcc/tree-ssa-structalias.c
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@ -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);