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authorJakub Jelinek <jakub@redhat.com>2017-03-09 17:42:45 +0100
committerJakub Jelinek <jakub@gcc.gnu.org>2017-03-09 17:42:45 +0100
commit01e5af5a2f5fa4813e359bc03d42e98d091c7a2d (patch)
tree00751fa0f7edfc1585af540a59ca67baebbdd525
parent6443c7c0e5e1b348ff5841463e3c3828b3036e30 (diff)
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re PR c/79969 (C FE emits locus of forward enum declaration rather than definition into debug info)
PR c/79969 * c-decl.c (start_enum): Adjust DECL_SOURCE_LOCATION of TYPE_STUB_DECL. * gcc.dg/debug/dwarf2/enum-loc1.c: New test. From-SVN: r246009
-rw-r--r--gcc/c/ChangeLog6
-rw-r--r--gcc/c/c-decl.c4
-rw-r--r--gcc/testsuite/ChangeLog5
-rw-r--r--gcc/testsuite/gcc.dg/debug/dwarf2/enum-loc1.c19
4 files changed, 34 insertions, 0 deletions
diff --git a/gcc/c/ChangeLog b/gcc/c/ChangeLog
index 588fe73..e6da629 100644
--- a/gcc/c/ChangeLog
+++ b/gcc/c/ChangeLog
@@ -1,3 +1,9 @@
+2017-03-09 Jakub Jelinek <jakub@redhat.com>
+
+ PR c/79969
+ * c-decl.c (start_enum): Adjust DECL_SOURCE_LOCATION of
+ TYPE_STUB_DECL.
+
2017-03-07 Jakub Jelinek <jakub@redhat.com>
PR c/79834
diff --git a/gcc/c/c-decl.c b/gcc/c/c-decl.c
index 645304a..130ffa6 100644
--- a/gcc/c/c-decl.c
+++ b/gcc/c/c-decl.c
@@ -8201,6 +8201,10 @@ start_enum (location_t loc, struct c_enum_contents *the_enum, tree name)
enumtype = make_node (ENUMERAL_TYPE);
pushtag (loc, name, enumtype);
}
+ /* Update type location to the one of the definition, instead of e.g.
+ a forward declaration. */
+ else if (TYPE_STUB_DECL (enumtype))
+ DECL_SOURCE_LOCATION (TYPE_STUB_DECL (enumtype)) = loc;
if (C_TYPE_BEING_DEFINED (enumtype))
error_at (loc, "nested redefinition of %<enum %E%>", name);
diff --git a/gcc/testsuite/ChangeLog b/gcc/testsuite/ChangeLog
index cad76f2..48fba48 100644
--- a/gcc/testsuite/ChangeLog
+++ b/gcc/testsuite/ChangeLog
@@ -1,3 +1,8 @@
+2017-03-09 Jakub Jelinek <jakub@redhat.com>
+
+ PR c/79969
+ * gcc.dg/debug/dwarf2/enum-loc1.c: New test.
+
2017-03-09 Marek Polacek <polacek@redhat.com>
PR c++/79687
diff --git a/gcc/testsuite/gcc.dg/debug/dwarf2/enum-loc1.c b/gcc/testsuite/gcc.dg/debug/dwarf2/enum-loc1.c
new file mode 100644
index 0000000..7394313
--- /dev/null
+++ b/gcc/testsuite/gcc.dg/debug/dwarf2/enum-loc1.c
@@ -0,0 +1,19 @@
+/* PR c/79969 */
+/* { dg-do compile } */
+/* { dg-options "-gdwarf -dA -fno-merge-debug-strings" } */
+
+enum ENUMTAG;
+
+enum ENUMTAG
+{
+ B = 1,
+ C = 2
+};
+
+void
+bar (void)
+{
+ enum ENUMTAG a = C;
+}
+
+/* { dg-final { scan-assembler "DW_TAG_enumeration_type\[^\\r\\n\]*\[\\r\\n\]+\[^\\r\\n\]*\"ENUMTAG\[^\\r\\n\]*DW_AT_name(\[^\\r\\n\]*\[\\r\\n\]+\[^\\r\\n\]*DW_AT_)*\[^\\r\\n\]*\[\\r\\n\]+\[^\\r\\n\]*\[^0-9a-fA-FxX](0x)?7\[^0-9a-fA-FxX]\[^\\r\\n\]*DW_AT_decl_line" } } */