diff options
| author | Martin Jambor <mjambor@suse.cz> | 2021-04-27 13:46:10 +0200 |
|---|---|---|
| committer | Martin Jambor <mjambor@suse.cz> | 2021-04-27 13:46:10 +0200 |
| commit | eea82246290010addf7f6be71a71b51079b3cb5d (patch) | |
| tree | f196e2ad06056fe1aac893fcdeadf50fc73a3013 /gcc | |
| parent | 01d0bda8bdf3cd804e1e00915d432ad0cdc49399 (diff) | |
| download | gcc-eea82246290010addf7f6be71a71b51079b3cb5d.zip gcc-eea82246290010addf7f6be71a71b51079b3cb5d.tar.gz gcc-eea82246290010addf7f6be71a71b51079b3cb5d.tar.bz2 | |
ipa-sra: Release dead LHS SSA_NAME when removing it (PR 99951)
When IPA-SRA removes an SSA_NAME from a LHS of a call statement
because it is not necessary, it does not release it. This patch fixes
that.
gcc/ChangeLog:
2021-04-08 Martin Jambor <mjambor@suse.cz>
PR ipa/99951
* ipa-param-manipulation.c (ipa_param_adjustments::modify_call):
If removing a call statement LHS SSA name, release it.
Diffstat (limited to 'gcc')
| -rw-r--r-- | gcc/ipa-param-manipulation.c | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/gcc/ipa-param-manipulation.c b/gcc/ipa-param-manipulation.c index 132bb24..1d1e64f 100644 --- a/gcc/ipa-param-manipulation.c +++ b/gcc/ipa-param-manipulation.c @@ -856,6 +856,7 @@ ipa_param_adjustments::modify_call (gcall *stmt, gcall *new_stmt = gimple_build_call_vec (callee_decl, vargs); + tree ssa_to_remove = NULL; if (tree lhs = gimple_call_lhs (stmt)) { if (!m_skip_return) @@ -880,6 +881,7 @@ ipa_param_adjustments::modify_call (gcall *stmt, } update_stmt (using_stmt); } + ssa_to_remove = lhs; } } @@ -898,6 +900,8 @@ ipa_param_adjustments::modify_call (gcall *stmt, fprintf (dump_file, "\n"); } gsi_replace (&gsi, new_stmt, true); + if (ssa_to_remove) + release_ssa_name (ssa_to_remove); if (update_references) do { |