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* [Bug target/61544] New: ICE due to thumb1_reorg function mishandles label type insn
@ 2014-06-18 4:32 terry.guo at arm dot com
2014-06-18 10:11 ` [Bug target/61544] " xguo at gcc dot gnu.org
` (4 more replies)
0 siblings, 5 replies; 6+ messages in thread
From: terry.guo at arm dot com @ 2014-06-18 4:32 UTC (permalink / raw)
To: gcc-bugs
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=61544
Bug ID: 61544
Summary: ICE due to thumb1_reorg function mishandles label type
insn
Product: gcc
Version: 4.10.0
Status: UNCONFIRMED
Severity: normal
Priority: P3
Component: target
Assignee: unassigned at gcc dot gnu.org
Reporter: terry.guo at arm dot com
When build some c++ files for pure thumb1 target, I ran into below ICE:
terguo01@terry-pc01:thumb1-reorg$
/myssd/terguo01/toolchain-build/thumb1-reorg/build-native/gcc-final/./gcc/xgcc
-shared-libgcc
-B/myssd/terguo01/toolchain-build/thumb1-reorg/build-native/gcc-final/./gcc
-nostdinc++
-L/myssd/terguo01/toolchain-build/thumb1-reorg/build-native/gcc-final/arm-none-eabi/libstdc++-v3/src
-L/myssd/terguo01/toolchain-build/thumb1-reorg/build-native/gcc-final/arm-none-eabi/libstdc++-v3/src/.libs
-L/myssd/terguo01/toolchain-build/thumb1-reorg/build-native/gcc-final/arm-none-eabi/libstdc++-v3/libsupc++/.libs
-B/myssd/terguo01/toolchain-build/thumb1-reorg/install-native/arm-none-eabi/bin/
-B/myssd/terguo01/toolchain-build/thumb1-reorg/install-native/arm-none-eabi/lib/
-isystem
/myssd/terguo01/toolchain-build/thumb1-reorg/install-native/arm-none-eabi/include
-isystem
/myssd/terguo01/toolchain-build/thumb1-reorg/install-native/arm-none-eabi/sys-include
-I/myssd/terguo01/toolchain-build/thumb1-reorg/src/gcc/libstdc++-v3/../libgcc
-I/myssd/terguo01/toolchain-build/thumb1-reorg/build-native/gcc-final/arm-none-eabi/libstdc++-v3/include/arm-none-eabi
-I/myssd/terguo01/toolchain-build/thumb1-reorg/build-native/gcc-final/arm-none-eabi/libstdc++-v3/include
-I/myssd/terguo01/toolchain-build/thumb1-reorg/src/gcc/libstdc++-v3/libsupc++
-fno-implicit-templates -Wall -Wextra -Wwrite-strings -Wcast-qual -Wabi
-fdiagnostics-show-location=once -ffunction-sections -fdata-sections
-frandom-seed=sstream-inst.lo -g -O2 -c
/myssd/terguo01/toolchain-build/thumb1-reorg/src/gcc/libstdc++-v3/src/c++98/sstream-inst.cc
-o sstream-inst.o
In file included from
/myssd/terguo01/toolchain-build/thumb1-reorg/src/gcc/libstdc++-v3/src/c++98/sstream-inst.cc:29:0:
/myssd/terguo01/toolchain-build/thumb1-reorg/build-native/gcc-final/arm-none-eabi/libstdc++-v3/include/sstream:
In member function 'std::basic_stringstream<_CharT, _Traits,
_Alloc>::__string_type std::basic_stringstream<_CharT, _Traits, _Alloc>::str()
const [with _CharT = char; _Traits = std::char_traits<char>; _Alloc =
std::allocator<char>; std::basic_stringstream<_CharT, _Traits,
_Alloc>::__string_type = std::basic_string<char>]':
/myssd/terguo01/toolchain-build/thumb1-reorg/build-native/gcc-final/arm-none-eabi/libstdc++-v3/include/sstream:584:36:
internal compiler error: Segmentation fault
{ return _M_stringbuf.str(); }
^
0xd90226 crash_signal
/myssd/terguo01/toolchain-build/thumb1-reorg/src/gcc/gcc/toplev.c:337
0x10e1219 thumb1_reorg
/myssd/terguo01/toolchain-build/thumb1-reorg/src/gcc/gcc/config/arm/arm.c:16954
0x10e1cbe arm_reorg
/myssd/terguo01/toolchain-build/thumb1-reorg/src/gcc/gcc/config/arm/arm.c:17223
0xd1451c execute
/myssd/terguo01/toolchain-build/thumb1-reorg/src/gcc/gcc/reorg.c:3959
Please submit a full bug report,
with preprocessed source if appropriate.
Please include the complete backtrace with any bug report.
See <http://gcc.gnu.org/bugs.html> for instructions.
Such ICE is triggered when apply thumb1_reorg function to below basic block:
(gdb) p debug_bb(bb)
(code_label/s 477 953 480 736 "" [1 uses])
(note 480 477 954 [bb 19] NOTE_INSN_BASIC_BLOCK)
(note 954 480 955 (var_location this (plus:SI (reg/f:SI 103 afp)
(const_int -20 [0xffffffffffffffec]))) NOTE_INSN_VAR_LOCATION)
(note 955 954 956 (var_location this (plus:SI (reg/f:SI 103 afp)
(const_int -20 [0xffffffffffffffec]))) NOTE_INSN_VAR_LOCATION)
For the code_label insn 477, its INSN_CODE accidentally equals the value of
CODE_FOR_cbranchsi4_insn. This leads to the execution of subsequent gcc code:
16953 pat = PATTERN (insn);
16954 op0 = XEXP (XEXP (SET_SRC (pat), 0), 0);
Then the ICE is triggered due to applying SET_SRC to a code_label insn.
>From the very beginning, we shouldn't use INSN_CODE to insn like code_label.
Thus when the head of basic block isn't a proper insn, we should move to next
basic block.
Patch at https://gcc.gnu.org/ml/gcc-patches/2014-06/msg00809.html can fix this
ICE.
^ permalink raw reply [flat|nested] 6+ messages in thread
* [Bug target/61544] ICE due to thumb1_reorg function mishandles label type insn
2014-06-18 4:32 [Bug target/61544] New: ICE due to thumb1_reorg function mishandles label type insn terry.guo at arm dot com
@ 2014-06-18 10:11 ` xguo at gcc dot gnu.org
2014-06-18 10:13 ` terry.guo at arm dot com
` (3 subsequent siblings)
4 siblings, 0 replies; 6+ messages in thread
From: xguo at gcc dot gnu.org @ 2014-06-18 10:11 UTC (permalink / raw)
To: gcc-bugs
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=61544
--- Comment #1 from xuepeng guo <xguo at gcc dot gnu.org> ---
Author: xguo
Date: Wed Jun 18 10:11:08 2014
New Revision: 211775
URL: https://gcc.gnu.org/viewcvs?rev=211775&root=gcc&view=rev
Log:
2014-06-18 Terry Guo <terry.guo@arm.com>
PR target/61544
* config/arm/arm.c (thumb1_reorg): Move to next basic block if we
reach the head.
Modified:
trunk/gcc/ChangeLog
trunk/gcc/config/arm/arm.c
^ permalink raw reply [flat|nested] 6+ messages in thread
* [Bug target/61544] ICE due to thumb1_reorg function mishandles label type insn
2014-06-18 4:32 [Bug target/61544] New: ICE due to thumb1_reorg function mishandles label type insn terry.guo at arm dot com
2014-06-18 10:11 ` [Bug target/61544] " xguo at gcc dot gnu.org
@ 2014-06-18 10:13 ` terry.guo at arm dot com
2014-07-04 12:46 ` amker at gcc dot gnu.org
` (2 subsequent siblings)
4 siblings, 0 replies; 6+ messages in thread
From: terry.guo at arm dot com @ 2014-06-18 10:13 UTC (permalink / raw)
To: gcc-bugs
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=61544
Terry Guo <terry.guo at arm dot com> changed:
What |Removed |Added
----------------------------------------------------------------------------
Status|UNCONFIRMED |RESOLVED
Resolution|--- |FIXED
--- Comment #2 from Terry Guo <terry.guo at arm dot com> ---
The fix is submitted.
^ permalink raw reply [flat|nested] 6+ messages in thread
* [Bug target/61544] ICE due to thumb1_reorg function mishandles label type insn
2014-06-18 4:32 [Bug target/61544] New: ICE due to thumb1_reorg function mishandles label type insn terry.guo at arm dot com
2014-06-18 10:11 ` [Bug target/61544] " xguo at gcc dot gnu.org
2014-06-18 10:13 ` terry.guo at arm dot com
@ 2014-07-04 12:46 ` amker at gcc dot gnu.org
2014-07-09 5:28 ` zqchen at gcc dot gnu.org
2014-07-29 10:50 ` rearnsha at gcc dot gnu.org
4 siblings, 0 replies; 6+ messages in thread
From: amker at gcc dot gnu.org @ 2014-07-04 12:46 UTC (permalink / raw)
To: gcc-bugs
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=61544
amker at gcc dot gnu.org changed:
What |Removed |Added
----------------------------------------------------------------------------
Target| |arm
CC| |amker at gcc dot gnu.org
Target Milestone|--- |4.9.1
Known to fail| |4.9.0
^ permalink raw reply [flat|nested] 6+ messages in thread
* [Bug target/61544] ICE due to thumb1_reorg function mishandles label type insn
2014-06-18 4:32 [Bug target/61544] New: ICE due to thumb1_reorg function mishandles label type insn terry.guo at arm dot com
` (2 preceding siblings ...)
2014-07-04 12:46 ` amker at gcc dot gnu.org
@ 2014-07-09 5:28 ` zqchen at gcc dot gnu.org
2014-07-29 10:50 ` rearnsha at gcc dot gnu.org
4 siblings, 0 replies; 6+ messages in thread
From: zqchen at gcc dot gnu.org @ 2014-07-09 5:28 UTC (permalink / raw)
To: gcc-bugs
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=61544
--- Comment #3 from zqchen at gcc dot gnu.org ---
Author: zqchen
Date: Wed Jul 9 05:27:16 2014
New Revision: 212385
URL: https://gcc.gnu.org/viewcvs?rev=212385&root=gcc&view=rev
Log:
Backport r211775 from trunk.
2014-06-18 Terry Guo <terry.guo@arm.com>
PR target/61544
* config/arm/arm.c (thumb1_reorg): Move to next basic block if we
reach the head.
Modified:
branches/gcc-4_9-branch/gcc/ChangeLog
branches/gcc-4_9-branch/gcc/config/arm/arm.c
^ permalink raw reply [flat|nested] 6+ messages in thread
* [Bug target/61544] ICE due to thumb1_reorg function mishandles label type insn
2014-06-18 4:32 [Bug target/61544] New: ICE due to thumb1_reorg function mishandles label type insn terry.guo at arm dot com
` (3 preceding siblings ...)
2014-07-09 5:28 ` zqchen at gcc dot gnu.org
@ 2014-07-29 10:50 ` rearnsha at gcc dot gnu.org
4 siblings, 0 replies; 6+ messages in thread
From: rearnsha at gcc dot gnu.org @ 2014-07-29 10:50 UTC (permalink / raw)
To: gcc-bugs
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=61544
Richard Earnshaw <rearnsha at gcc dot gnu.org> changed:
What |Removed |Added
----------------------------------------------------------------------------
CC| |manjian2006 at gmail dot com
--- Comment #4 from Richard Earnshaw <rearnsha at gcc dot gnu.org> ---
*** Bug 61712 has been marked as a duplicate of this bug. ***
^ permalink raw reply [flat|nested] 6+ messages in thread
end of thread, other threads:[~2014-07-29 10:50 UTC | newest]
Thread overview: 6+ messages (download: mbox.gz / follow: Atom feed)
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2014-06-18 4:32 [Bug target/61544] New: ICE due to thumb1_reorg function mishandles label type insn terry.guo at arm dot com
2014-06-18 10:11 ` [Bug target/61544] " xguo at gcc dot gnu.org
2014-06-18 10:13 ` terry.guo at arm dot com
2014-07-04 12:46 ` amker at gcc dot gnu.org
2014-07-09 5:28 ` zqchen at gcc dot gnu.org
2014-07-29 10:50 ` rearnsha at gcc dot gnu.org
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