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authorNathaniel Shead <nathanieloshead@gmail.com>2024-02-17 23:10:49 +1100
committerNathaniel Shead <nathanieloshead@gmail.com>2024-04-14 20:55:33 +1000
commit62a0ef0d02cbb74cd865c1db2ecb7ca1b11f87cd (patch)
treecb71e03bdad0a8c84402e2c6e20f023aac9d0f2a /gcc/cp/module.cc
parent3319d1a4aa5ccadc22dcb80252ab884c792b263b (diff)
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c++: Setup aliases imported from modules [PR106820]
I wonder if more generally we need to be doing more work when importing definitions from header units especially to handle all the work that 'make_rtl_for_nonlocal_decl' and 'rest_of_decl_compilation' would have been performing. But this patch fixes at least one missing step. PR c++/106820 gcc/cp/ChangeLog: * module.cc (trees_in::decl_value): Assemble alias when needed. gcc/testsuite/ChangeLog: * g++.dg/modules/pr106820_a.H: New test. * g++.dg/modules/pr106820_b.C: New test. Signed-off-by: Nathaniel Shead <nathanieloshead@gmail.com>
Diffstat (limited to 'gcc/cp/module.cc')
-rw-r--r--gcc/cp/module.cc9
1 files changed, 9 insertions, 0 deletions
diff --git a/gcc/cp/module.cc b/gcc/cp/module.cc
index c6f71e1..001430a 100644
--- a/gcc/cp/module.cc
+++ b/gcc/cp/module.cc
@@ -219,6 +219,7 @@ Classes used:
#include "dumpfile.h"
#include "bitmap.h"
#include "cgraph.h"
+#include "varasm.h"
#include "tree-iterator.h"
#include "cpplib.h"
#include "mkdeps.h"
@@ -8414,6 +8415,14 @@ trees_in::decl_value ()
if (state->is_header ()
&& decl_tls_wrapper_p (decl))
note_vague_linkage_fn (decl);
+
+ /* Setup aliases for the declaration. */
+ if (tree alias = lookup_attribute ("alias", DECL_ATTRIBUTES (decl)))
+ {
+ alias = TREE_VALUE (TREE_VALUE (alias));
+ alias = get_identifier (TREE_STRING_POINTER (alias));
+ assemble_alias (decl, alias);
+ }
}
else
{