[PATCH] ia64: Fix C++14 vs. C++17 ABI issue on ia64 [PR94706]
Jakub Jelinek
jakub@redhat.com
Wed Apr 22 13:36:54 GMT 2020
Hi!
ia64 seems to be affected too, but the backend doesn't have any
-Wpsabi warnings and I'm not sure if we really need them for an (almost?)
dead target.
Untested by me, but Andreas confirmed it fixed all struct-layout-1.exp
regressions. Ok for trunk?
2020-04-22 Jakub Jelinek <jakub@redhat.com>
PR target/94706
* config/ia64/ia64.c (hfa_element_mode): Ignore
cxx17_empty_base_field_p fields.
--- gcc/config/ia64/ia64.c.jj 2020-01-12 11:54:36.338414540 +0100
+++ gcc/config/ia64/ia64.c 2020-04-22 12:49:59.627563114 +0200
@@ -4665,7 +4665,7 @@ hfa_element_mode (const_tree type, bool
case QUAL_UNION_TYPE:
for (t = TYPE_FIELDS (type); t; t = DECL_CHAIN (t))
{
- if (TREE_CODE (t) != FIELD_DECL)
+ if (TREE_CODE (t) != FIELD_DECL || cxx17_empty_base_field_p (t))
continue;
mode = hfa_element_mode (TREE_TYPE (t), 1);
Jakub
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