* [Bug debug/52857] [x32] DW_OP_GNU_regval_type doesn't handle ARG_POINTER_REGNUM properly with -maddress-mode=long
2012-04-03 23:15 [Bug debug/52857] New: [x32] DW_OP_GNU_regval_type doesn't handle ARG_POINTER_REGNUM properly with -maddress-mode=long hjl.tools at gmail dot com
@ 2012-04-03 23:29 ` hjl.tools at gmail dot com
2012-04-06 0:51 ` [Bug debug/52857] DW_OP_GNU_regval_type is generated with INVALID_REGNUM hjl.tools at gmail dot com
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From: hjl.tools at gmail dot com @ 2012-04-03 23:29 UTC (permalink / raw)
To: gcc-bugs
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=52857
--- Comment #1 from H.J. Lu <hjl.tools at gmail dot com> 2012-04-03 23:28:42 UTC ---
Does this patch
diff --git a/gcc/dwarf2out.c b/gcc/dwarf2out.c
index ca88fc5..935c86f 100644
--- a/gcc/dwarf2out.c
+++ b/gcc/dwarf2out.c
@@ -11664,7 +11664,8 @@ mem_loc_descriptor (rtx rtl, enum machine_mode mode,
if (dwarf_strict)
break;
- if (REGNO (rtl) > FIRST_PSEUDO_REGISTER)
+ if (REGNO (rtl) > FIRST_PSEUDO_REGISTER
+ || dbx_reg_number (rtl) == INVALID_REGNUM)
break;
type_die = base_type_for_mode (mode,
GET_MODE_CLASS (mode) == MODE_INT);
make senses?
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* [Bug debug/52857] DW_OP_GNU_regval_type is generated with INVALID_REGNUM
2012-04-03 23:15 [Bug debug/52857] New: [x32] DW_OP_GNU_regval_type doesn't handle ARG_POINTER_REGNUM properly with -maddress-mode=long hjl.tools at gmail dot com
2012-04-03 23:29 ` [Bug debug/52857] " hjl.tools at gmail dot com
@ 2012-04-06 0:51 ` hjl.tools at gmail dot com
2012-04-06 13:06 ` hjl.tools at gmail dot com
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From: hjl.tools at gmail dot com @ 2012-04-06 0:51 UTC (permalink / raw)
To: gcc-bugs
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=52857
--- Comment #2 from H.J. Lu <hjl.tools at gmail dot com> 2012-04-06 00:50:50 UTC ---
A small testcase:
[hjl@gnu-6 delta]$ cat testcase.c
extern void get_BID128 (int *);
void
__bid128_div (long long bid_y)
{
int res;
get_BID128 (&res);
}
[hjl@gnu-6 delta]$ gcc -mx32 -maddress-mode=long -g -O testcase.c -c && readelf
-w testcase.o | grep "DW_OP_GNU_regval_type: 4294967295"
<79> DW_AT_GNU_call_site_value: 21 byte block: f5 ff ff ff ff f 25 f4 25
8 ec ff ff ff ff ff ff ff 22 f7 2c (DW_OP_GNU_regval_type: 4294967295 (r-1)
<0x25>; DW_OP_GNU_const_type: <0x25> 8 byte block: ec ff ff ff ff ff ff ff ;
DW_OP_plus; DW_OP_GNU_convert <0x2c>)
[hjl@gnu-6 delta]$
^ permalink raw reply [flat|nested] 10+ messages in thread
* [Bug debug/52857] DW_OP_GNU_regval_type is generated with INVALID_REGNUM
2012-04-03 23:15 [Bug debug/52857] New: [x32] DW_OP_GNU_regval_type doesn't handle ARG_POINTER_REGNUM properly with -maddress-mode=long hjl.tools at gmail dot com
2012-04-03 23:29 ` [Bug debug/52857] " hjl.tools at gmail dot com
2012-04-06 0:51 ` [Bug debug/52857] DW_OP_GNU_regval_type is generated with INVALID_REGNUM hjl.tools at gmail dot com
@ 2012-04-06 13:06 ` hjl.tools at gmail dot com
2012-04-06 14:52 ` hjl.tools at gmail dot com
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From: hjl.tools at gmail dot com @ 2012-04-06 13:06 UTC (permalink / raw)
To: gcc-bugs
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=52857
--- Comment #3 from H.J. Lu <hjl.tools at gmail dot com> 2012-04-06 13:05:49 UTC ---
For
(note 21 8 17 2 (expr_list:REG_DEP_TRUE (concat:SI (reg:SI 5 di)
(subreg:SI (plus:DI (reg/f:DI 16 argp)
(const_int -20 [0xffffffffffffffec])) 0))
(nil)) NOTE_INSN_CALL_ARG_LOCATION)
when
(plus:DI (reg/f:DI 16 argp)
(const_int -20 [0xffffffffffffffec]))
reaches
case PLUS:
plus:
if (is_based_loc (rtl)
&& GET_MODE_SIZE (mode) <= DWARF2_ADDR_SIZE
&& GET_MODE_CLASS (mode) == MODE_INT)
mem_loc_result = based_loc_descr (XEXP (rtl, 0),
INTVAL (XEXP (rtl, 1)),
VAR_INIT_STATUS_INITIALIZED);
else
it fails "GET_MODE_SIZE (mode) <= DWARF2_ADDR_SIZE" since
we have ptr_mode = SImode and Pmode == DImode. However,
arg_pointer_rtx and frame_pointer_rtx are special cases.
They should be allowed even if their mode sizes >
DWARF2_ADDR_SIZE.
^ permalink raw reply [flat|nested] 10+ messages in thread
* [Bug debug/52857] DW_OP_GNU_regval_type is generated with INVALID_REGNUM
2012-04-03 23:15 [Bug debug/52857] New: [x32] DW_OP_GNU_regval_type doesn't handle ARG_POINTER_REGNUM properly with -maddress-mode=long hjl.tools at gmail dot com
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2012-04-06 13:06 ` hjl.tools at gmail dot com
@ 2012-04-06 14:52 ` hjl.tools at gmail dot com
2012-04-06 17:42 ` hjl.tools at gmail dot com
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From: hjl.tools at gmail dot com @ 2012-04-06 14:52 UTC (permalink / raw)
To: gcc-bugs
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=52857
--- Comment #4 from H.J. Lu <hjl.tools at gmail dot com> 2012-04-06 14:51:55 UTC ---
Another testcase:
[hjl@gnu-mic-2 delta]$ cat testcase.c
void uw_init_context_1 (void *);
void _Unwind_ForcedUnwind (void)
{
uw_init_context_1 (__builtin_dwarf_cfa ());
}
[hjl@gnu-mic-2 delta]$ /export/build/gnu/gcc-x32/build-x86_64-linux/gcc/xgcc
-B/export/build/gnu/gcc-x32/build-x86_64-linux/gcc/ -mx32 -O2 -g -fPIC -S
-maddress-mode=long testcase.c
testcase.c: In function \u2018_Unwind_ForcedUnwind\u2019:
testcase.c:5:1: internal compiler error: in mem_loc_descriptor, at
dwarf2out.c:11675
Please submit a full bug report,
with preprocessed source if appropriate.
See <http://gcc.gnu.org/bugs.html> for instructions.
[hjl@gnu-mic-2 delta]$
^ permalink raw reply [flat|nested] 10+ messages in thread
* [Bug debug/52857] DW_OP_GNU_regval_type is generated with INVALID_REGNUM
2012-04-03 23:15 [Bug debug/52857] New: [x32] DW_OP_GNU_regval_type doesn't handle ARG_POINTER_REGNUM properly with -maddress-mode=long hjl.tools at gmail dot com
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2012-04-06 14:52 ` hjl.tools at gmail dot com
@ 2012-04-06 17:42 ` hjl.tools at gmail dot com
2012-04-25 19:09 ` hjl at gcc dot gnu.org
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From: hjl.tools at gmail dot com @ 2012-04-06 17:42 UTC (permalink / raw)
To: gcc-bugs
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=52857
H.J. Lu <hjl.tools at gmail dot com> changed:
What |Removed |Added
----------------------------------------------------------------------------
URL| |http://gcc.gnu.org/ml/gcc-p
| |atches/2012-04/msg00358.htm
| |l
--- Comment #5 from H.J. Lu <hjl.tools at gmail dot com> 2012-04-06 17:41:01 UTC ---
A patch is posted at
http://gcc.gnu.org/ml/gcc-patches/2012-04/msg00358.html
^ permalink raw reply [flat|nested] 10+ messages in thread
* [Bug debug/52857] DW_OP_GNU_regval_type is generated with INVALID_REGNUM
2012-04-03 23:15 [Bug debug/52857] New: [x32] DW_OP_GNU_regval_type doesn't handle ARG_POINTER_REGNUM properly with -maddress-mode=long hjl.tools at gmail dot com
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2012-04-06 17:42 ` hjl.tools at gmail dot com
@ 2012-04-25 19:09 ` hjl at gcc dot gnu.org
2012-06-24 14:24 ` hjl.tools at gmail dot com
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From: hjl at gcc dot gnu.org @ 2012-04-25 19:09 UTC (permalink / raw)
To: gcc-bugs
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=52857
--- Comment #6 from hjl at gcc dot gnu.org <hjl at gcc dot gnu.org> 2012-04-25 19:08:29 UTC ---
Author: hjl
Date: Wed Apr 25 19:08:23 2012
New Revision: 186837
URL: http://gcc.gnu.org/viewcvs?root=gcc&view=rev&rev=186837
Log:
Assert dbx_reg_number doesn't return INVALID_REGNUM
PR debug/52857
* dwarf2out.c (dbx_reg_number): Assert return value !=
INVALID_REGNUM.
Modified:
trunk/gcc/ChangeLog
trunk/gcc/dwarf2out.c
^ permalink raw reply [flat|nested] 10+ messages in thread
* [Bug debug/52857] DW_OP_GNU_regval_type is generated with INVALID_REGNUM
2012-04-03 23:15 [Bug debug/52857] New: [x32] DW_OP_GNU_regval_type doesn't handle ARG_POINTER_REGNUM properly with -maddress-mode=long hjl.tools at gmail dot com
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2012-04-25 19:09 ` hjl at gcc dot gnu.org
@ 2012-06-24 14:24 ` hjl.tools at gmail dot com
2012-08-24 13:22 ` hjl at gcc dot gnu.org
2012-12-07 22:11 ` hjl.tools at gmail dot com
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From: hjl.tools at gmail dot com @ 2012-06-24 14:24 UTC (permalink / raw)
To: gcc-bugs
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=52857
H.J. Lu <hjl.tools at gmail dot com> changed:
What |Removed |Added
----------------------------------------------------------------------------
URL|http://gcc.gnu.org/ml/gcc-p |http://gcc.gnu.org/ml/gcc-p
|atches/2012-04/msg00358.htm |atches/2012-04/msg01815.htm
|l |l
--- Comment #7 from H.J. Lu <hjl.tools at gmail dot com> 2012-06-24 14:23:51 UTC ---
The updated patch is at
http://gcc.gnu.org/ml/gcc-patches/2012-04/msg01815.html
^ permalink raw reply [flat|nested] 10+ messages in thread
* [Bug debug/52857] DW_OP_GNU_regval_type is generated with INVALID_REGNUM
2012-04-03 23:15 [Bug debug/52857] New: [x32] DW_OP_GNU_regval_type doesn't handle ARG_POINTER_REGNUM properly with -maddress-mode=long hjl.tools at gmail dot com
` (6 preceding siblings ...)
2012-06-24 14:24 ` hjl.tools at gmail dot com
@ 2012-08-24 13:22 ` hjl at gcc dot gnu.org
2012-12-07 22:11 ` hjl.tools at gmail dot com
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From: hjl at gcc dot gnu.org @ 2012-08-24 13:22 UTC (permalink / raw)
To: gcc-bugs
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=52857
--- Comment #8 from hjl at gcc dot gnu.org <hjl at gcc dot gnu.org> 2012-08-24 13:22:02 UTC ---
Author: hjl
Date: Fri Aug 24 13:21:55 2012
New Revision: 190647
URL: http://gcc.gnu.org/viewcvs?root=gcc&view=rev&rev=190647
Log:
Allow arg_pointer_rtx/frame_pointer_rtx for based_loc_descr
gcc/
PR debug/52857
* dwarf2out.c (mem_loc_descriptor): Allow arg_pointer_rtx and
frame_pointer_rtx for based_loc_descr.
gcc/testsuite/
PR debug/52857
* gcc.target/i386/pr52857-1.c: New.
* gcc.target/i386/pr52857-2.c: Likewise.
Added:
trunk/gcc/testsuite/gcc.target/i386/pr52857-1.c
trunk/gcc/testsuite/gcc.target/i386/pr52857-2.c
Modified:
trunk/gcc/ChangeLog
trunk/gcc/dwarf2out.c
trunk/gcc/testsuite/ChangeLog
^ permalink raw reply [flat|nested] 10+ messages in thread
* [Bug debug/52857] DW_OP_GNU_regval_type is generated with INVALID_REGNUM
2012-04-03 23:15 [Bug debug/52857] New: [x32] DW_OP_GNU_regval_type doesn't handle ARG_POINTER_REGNUM properly with -maddress-mode=long hjl.tools at gmail dot com
` (7 preceding siblings ...)
2012-08-24 13:22 ` hjl at gcc dot gnu.org
@ 2012-12-07 22:11 ` hjl.tools at gmail dot com
8 siblings, 0 replies; 10+ messages in thread
From: hjl.tools at gmail dot com @ 2012-12-07 22:11 UTC (permalink / raw)
To: gcc-bugs
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=52857
H.J. Lu <hjl.tools at gmail dot com> changed:
What |Removed |Added
----------------------------------------------------------------------------
Status|UNCONFIRMED |RESOLVED
Resolution| |FIXED
Target Milestone|--- |4.8.0
--- Comment #9 from H.J. Lu <hjl.tools at gmail dot com> 2012-12-07 22:11:26 UTC ---
Fixed.
^ permalink raw reply [flat|nested] 10+ messages in thread