[PATCH 4/5] Handle FIELD_DECL in IPA ICF.

[Martin Liska]

gcc/ChangeLog:

2019-11-11  Martin Liska  <mli...@suse.cz>

        * ipa-icf-gimple.c (func_checker::hash_operand): Improve
        func_checker::hash_operand by handling of FIELD_DECLs.
---
 gcc/ipa-icf-gimple.c | 5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)


diff --git a/gcc/ipa-icf-gimple.c b/gcc/ipa-icf-gimple.c
index edb8fd66e08..ac53a1dfbbf 100644
--- a/gcc/ipa-icf-gimple.c
+++ b/gcc/ipa-icf-gimple.c
@@ -234,7 +234,10 @@ func_checker::hash_operand (const_tree arg, inchash::hash &hstate,
     case CONST_DECL:
     case SSA_NAME:
       return;
-
+    case FIELD_DECL:
+      inchash::add_expr (DECL_FIELD_OFFSET (arg), hstate, flags);
+      inchash::add_expr (DECL_FIELD_BIT_OFFSET (arg), hstate, flags);
+      return;
     default:
       break;
     }