67 lines
2.0 KiB
Diff
67 lines
2.0 KiB
Diff
2016-02-25 Jakub Jelinek <jakub@redhat.com>
|
|
|
|
PR debug/69947
|
|
* dwarf2out.c (prune_unused_types_walk_loc_descr): Handle
|
|
all other ops that have dw_val_class_die_ref operands,
|
|
and DW_OP_GNU_entry_value.
|
|
|
|
* gcc.dg/guality/pr69947.c: New test.
|
|
|
|
--- gcc/dwarf2out.c.jj 2016-02-25 17:04:11.465781368 +0100
|
|
+++ gcc/dwarf2out.c 2016-02-25 17:41:26.785371399 +0100
|
|
@@ -25641,11 +25641,29 @@ prune_unused_types_walk_loc_descr (dw_lo
|
|
for (; loc != NULL; loc = loc->dw_loc_next)
|
|
switch (loc->dw_loc_opc)
|
|
{
|
|
+ case DW_OP_GNU_implicit_pointer:
|
|
+ case DW_OP_GNU_convert:
|
|
+ case DW_OP_GNU_reinterpret:
|
|
+ if (loc->dw_loc_oprnd1.val_class == dw_val_class_die_ref)
|
|
+ prune_unused_types_mark (loc->dw_loc_oprnd1.v.val_die_ref.die, 1);
|
|
+ break;
|
|
case DW_OP_call2:
|
|
case DW_OP_call4:
|
|
case DW_OP_call_ref:
|
|
+ case DW_OP_GNU_const_type:
|
|
+ case DW_OP_GNU_parameter_ref:
|
|
+ gcc_assert (loc->dw_loc_oprnd1.val_class == dw_val_class_die_ref);
|
|
prune_unused_types_mark (loc->dw_loc_oprnd1.v.val_die_ref.die, 1);
|
|
break;
|
|
+ case DW_OP_GNU_regval_type:
|
|
+ case DW_OP_GNU_deref_type:
|
|
+ gcc_assert (loc->dw_loc_oprnd2.val_class == dw_val_class_die_ref);
|
|
+ prune_unused_types_mark (loc->dw_loc_oprnd2.v.val_die_ref.die, 1);
|
|
+ break;
|
|
+ case DW_OP_GNU_entry_value:
|
|
+ gcc_assert (loc->dw_loc_oprnd1.val_class == dw_val_class_loc);
|
|
+ prune_unused_types_walk_loc_descr (loc->dw_loc_oprnd1.v.val_loc);
|
|
+ break;
|
|
default:
|
|
break;
|
|
}
|
|
--- gcc/testsuite/gcc.dg/guality/pr69947.c.jj 2016-02-25 17:22:13.729098931 +0100
|
|
+++ gcc/testsuite/gcc.dg/guality/pr69947.c 2016-02-25 17:22:13.729098931 +0100
|
|
@@ -0,0 +1,22 @@
|
|
+/* PR debug/69947 */
|
|
+/* { dg-do run } */
|
|
+/* { dg-options "-g" } */
|
|
+
|
|
+#include "../nop.h"
|
|
+
|
|
+static const char *c = "foobar";
|
|
+
|
|
+__attribute__((noinline, noclone)) void
|
|
+foo (void)
|
|
+{
|
|
+ static const char a[] = "abcdefg";
|
|
+ const char *b = a; /* { dg-final { gdb-test 14 "c\[2\]" "'o'" } } */
|
|
+ asm (NOP : : : "memory"); /* { dg-final { gdb-test 14 "b\[4\]" "'e'" } } */
|
|
+}
|
|
+
|
|
+int
|
|
+main ()
|
|
+{
|
|
+ foo ();
|
|
+ return 0;
|
|
+}
|