Fix hash_operand for fields of a CONSTRUCTOR.

2019-11-04 Martin Liska <mliska@suse.cz> PR ipa/92304 * fold-const.c (operand_compare::hash_operand): Fix field hashing of CONSTRUCTOR. From-SVN: r277768

Fix hash_operand for fields of a CONSTRUCTOR.
2019-11-04 Martin Liska <mliska@suse.cz> PR ipa/92304 * fold-const.c (operand_compare::hash_operand): Fix field hashing of CONSTRUCTOR. From-SVN: r277768
2323aa04 · Martin Liska · Martin Liska · ddf628e4 · 2323aa04 · 2323aa04
Commit 2323aa04 authored Nov 04, 2019 by Martin Liska Committed by Martin Liska Nov 04, 2019
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--- a/gcc/ChangeLog
+++ b/gcc/ChangeLog
 2019-11-04  Martin Liska  <mliska@suse.cz>

+	PR ipa/92304
+	* fold-const.c (operand_compare::hash_operand): Fix field
+	hashing of CONSTRUCTOR.
+
+2019-11-04  Martin Liska  <mliska@suse.cz>
+
 	* ggc.h (ggc_delete): New function.
 	* ipa-fnsummary.c (ipa_free_fn_summary): Use it.
 	* ipa-prop.c (ipa_free_all_edge_args): Likewise.
--- a/gcc/fold-const.c
+++ b/gcc/fold-const.c
@@ -3659,6 +3659,9 @@ operand_compare::hash_operand (const_tree t, inchash::hash &hstate,
 	flags &= ~OEP_ADDRESS_OF;
 	FOR_EACH_CONSTRUCTOR_ELT (CONSTRUCTOR_ELTS (t), idx, field, value)
 	  {
+	    /* In GIMPLE the indexes can be either NULL or matching i.  */
+	    if (field == NULL_TREE)
+	      field = bitsize_int (idx);
 	    hash_operand (field, hstate, flags);
 	    hash_operand (value, hstate, flags);
 	  }