diff options
Diffstat (limited to 'gcc/dwarf2out.c')
| -rw-r--r-- | gcc/dwarf2out.c | 9 |
1 files changed, 9 insertions, 0 deletions
diff --git a/gcc/dwarf2out.c b/gcc/dwarf2out.c index 1677923..e36ef56 100644 --- a/gcc/dwarf2out.c +++ b/gcc/dwarf2out.c @@ -16363,6 +16363,15 @@ mem_loc_descriptor (rtx rtl, machine_mode mode, do_binop: op0 = mem_loc_descriptor (XEXP (rtl, 0), mode, mem_mode, VAR_INIT_STATUS_INITIALIZED); + if (XEXP (rtl, 0) == XEXP (rtl, 1)) + { + if (op0 == 0) + break; + mem_loc_result = op0; + add_loc_descr (&mem_loc_result, new_loc_descr (DW_OP_dup, 0, 0)); + add_loc_descr (&mem_loc_result, new_loc_descr (op, 0, 0)); + break; + } op1 = mem_loc_descriptor (XEXP (rtl, 1), mode, mem_mode, VAR_INIT_STATUS_INITIALIZED); |