[Bug c++/37436] New: arm-cross-g++. internal compiler error: in extract_insn, at recog.c:1990

[Bug c++/37436] New: arm-cross-g++. internal compiler error: in extract_insn, at recog.c:1990

[weizhong at broadcom dot com]

version:
gcc-4.3.2 http://ftp.gnu.org/gnu/gcc/gcc-4.3.2/gcc-4.3.2.tar.bz2

system type:
host - x86_64-linux-gnu
target - arm-brcm-linux-gnueabi 

configuration:
Using built-in specs.
Target: arm-brcm-linux-gnueabi
Configured with:
/projects/svm_users/weizhong/buildroot_armv7_1/config/20080513/le_arm11_external/../../../external/src/gcc-4.3.2/configure
--build=x86_64-linux-gnu --host=x86_64-linux-gnu
--target=arm-brcm-linux-gnueabi
--prefix=/projects/svm_users/weizhong/buildroot_armv7_1/config/20080513/le_arm11_external/../../../external/arm-brcm-linux-gnueabi/build
--with-sysroot=/projects/svm_users/weizhong/buildroot_armv7_1/config/20080513/le_arm11_external/../../../external/arm-brcm-linux-gnueabi/build/sysroot
--enable-shared --disable-__cxa_atexit --enable-target-optspace --with-gnu-ld
--with-gnu-as --enable-threads --disable-libssp --disable-libgomp
--disable-libmudflap --enable-languages=c,c++ --with-float=soft
--with-gmp=/projects/svm_users/weizhong/buildroot_armv7_1/config/20080513/le_arm11_external/../../../external/arm-brcm-linux-gnueabi/build/gmp
--with-mpfr=/projects/svm_users/weizhong/buildroot_armv7_1/config/20080513/le_arm11_external/../../../external/arm-brcm-linux-gnueabi/build/mpfr
Thread model: posix
gcc version 4.3.2 (GCC)


command:
arm-brcm-linux-gnueabi-g++ -D_REENTRANT -I. -I../common -DU_I18N_IMPLEMENTATION
-g -O2 -fvisibility=hidden -c -DPIC -fPIC -o rematch.o rematch.cpp


output:
ll rematch.cpp: In member function 'void
icu_3_8::RegexMatcher::MatchAt(int32_t, UErrorCode&)':
rematch.cpp:2290: error: unrecognizable insn:
(insn 4205 1393 1395 183 rematch.cpp:1462 (set (reg:SI 12 ip)
        (plus:SI (reg:SI 3 r3 [971])
            (mult:SI (reg/v:SI 14 lr [orig:254 opValue.2027 ] [254])
                (const_int 32 [0x20])))) -1 (nil))
rematch.cpp:2290: internal compiler error: in extract_insn, at recog.c:1990
Please submit a full bug report,
with preprocessed source if appropriate.
See <http://gcc.gnu.org/bugs.html> for instructions.


-- 
           Summary: arm-cross-g++. internal compiler error: in extract_insn,
                    at recog.c:1990
           Product: gcc
           Version: 4.3.2
            Status: UNCONFIRMED
          Severity: critical
          Priority: P3
         Component: c++
        AssignedTo: unassigned at gcc dot gnu dot org
        ReportedBy: weizhong at broadcom dot com
 GCC build triplet: x86_64-linux-gnu
  GCC host triplet: x86_64-linux-gnu
GCC target triplet: arm-brcm-linux-gnueabi


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=37436

[Bug c++/37436] arm-cross-g++. internal compiler error: in extract_insn, at recog.c:1990

[weizhong at broadcom dot com]

------- Comment #1 from weizhong at broadcom dot com  2008-09-08 23:41 -------
Created an attachment (id=16260)
 --> (http://gcc.gnu.org/bugzilla/attachment.cgi?id=16260&action=view)
generated by adding -save-temps


-- 


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=37436

[Bug c++/37436] arm-cross-g++. internal compiler error: in extract_insn, at recog.c:1990

[weizhong at broadcom dot com]

------- Comment #2 from weizhong at broadcom dot com  2008-09-08 23:42 -------
Created an attachment (id=16261)
 --> (http://gcc.gnu.org/bugzilla/attachment.cgi?id=16261&action=view)
generated by adding -save-temps


-- 


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=37436

[Bug target/37436] arm-cross-g++. internal compiler error: in extract_insn, at recog.c:1990

[pinskia at gcc dot gnu dot org]

-- 

pinskia at gcc dot gnu dot org changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
                 CC|                            |pinskia at gcc dot gnu dot
                   |                            |org
           Severity|critical                    |normal
          Component|c++                         |target


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=37436

[Bug target/37436] arm-cross-g++. internal compiler error: in extract_insn, at recog.c:1990

[rearnsha at gcc dot gnu dot org]

------- Comment #3 from rearnsha at gcc dot gnu dot org  2008-12-10 15:10 -------
Confirmed.  Still present on trunk.


-- 

rearnsha at gcc dot gnu dot org changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|UNCONFIRMED                 |NEW
     Ever Confirmed|0                           |1
      Known to fail|                            |4.4.0
   Last reconfirmed|0000-00-00 00:00:00         |2008-12-10 15:10:56
               date|                            |


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=37436

[Bug target/37436] arm-cross-g++. internal compiler error: in extract_insn, at recog.c:1990

[rearnsha at gcc dot gnu dot org]

------- Comment #4 from rearnsha at gcc dot gnu dot org  2008-12-10 15:38 -------
Some notes on the failure path:

combine generates the pattern
(insn 1466 1464 1467 192 regeximp.h:320 (set (reg:SI 1002)
        (sign_extend:SI (mem/s/j:QI (plus:SI (reg:SI 1000)
                    (mult:SI (reg/v:SI 246 [ opValue.1977 ])
                        (const_int 32 [0x20])))

[note the address in the mem is not in canonical form]
Register allocation realises that a scaled register is not permitted for a
sign_extend(mem()) operation and splits the entire sub-expression into a
separate insn.  However, because that insn is not in canonical form, it then
fails to recognize the result.


-- 

rearnsha at gcc dot gnu dot org changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
                 CC|                            |rearnsha at gcc dot gnu dot
                   |                            |org
           Keywords|                            |ice-on-valid-code


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=37436

[Bug target/37436] arm-cross-g++. internal compiler error: in extract_insn, at recog.c:1990

[rearnsha at gcc dot gnu dot org]

-- 

rearnsha at gcc dot gnu dot org changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
         AssignedTo|unassigned at gcc dot gnu   |rearnsha at gcc dot gnu dot
                   |dot org                     |org
             Status|NEW                         |ASSIGNED
   Last reconfirmed|2008-12-10 15:10:56         |2008-12-10 16:54:35
               date|                            |


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=37436

[Bug target/37436] arm-cross-g++. internal compiler error: in extract_insn, at recog.c:1990

[rearnsha at gcc dot gnu dot org]

-- 

rearnsha at gcc dot gnu dot org changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
   Target Milestone|---                         |4.4.0


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=37436

[Bug target/37436] arm-cross-g++. internal compiler error: in extract_insn, at recog.c:1990

[rearnsha at gcc dot gnu dot org]

-- 

rearnsha at gcc dot gnu dot org changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
           Priority|P3                          |P2


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=37436

[Bug target/37436] arm-cross-g++. internal compiler error: in extract_insn, at recog.c:1990

[rearnsha at gcc dot gnu dot org]

------- Comment #5 from rearnsha at gcc dot gnu dot org  2008-12-16 12:04 -------
Subject: Bug 37436

Author: rearnsha
Date: Tue Dec 16 12:03:41 2008
New Revision: 142778

URL: http://gcc.gnu.org/viewcvs?root=gcc&view=rev&rev=142778
Log:
PR target/37436
* arm.c (arm_legitimate_index): Only accept addresses that are in
canonical form.
* predicates.md (arm_reg_or_extendqisi_mem_op): New predicate.
* arm.md (extendqihi2): Use arm_reg_or_extendqisi_mem_op predicate
for operand1.
(extendqisi2): Likewise.
(arm_extendqisi, arm_extendqisi_v6): Use arm_extendqisi_mem_op
predicate for operand1.

Modified:
    trunk/gcc/ChangeLog
    trunk/gcc/config/arm/arm.c
    trunk/gcc/config/arm/arm.md
    trunk/gcc/config/arm/predicates.md


-- 


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=37436

[Bug target/37436] arm-cross-g++. internal compiler error: in extract_insn, at recog.c:1990

[rearnsha at gcc dot gnu dot org]

------- Comment #6 from rearnsha at gcc dot gnu dot org  2008-12-16 12:12 -------
Fixed on trunk


-- 

rearnsha at gcc dot gnu dot org changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|ASSIGNED                    |RESOLVED
         Resolution|                            |FIXED


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=37436

[Bug target/37436] arm-cross-g++. internal compiler error: in extract_insn, at recog.c:1990

[ramana at gcc dot gnu dot org]

------- Comment #8 from ramana at gcc dot gnu dot org  2009-03-30 18:36 -------
This still exists for the 4.3 branch. Hence reopening.


-- 

ramana at gcc dot gnu dot org changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|RESOLVED                    |REOPENED
         Resolution|FIXED                       |
   Target Milestone|4.4.0                       |4.3.4


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=37436

[Bug target/37436] arm-cross-g++. internal compiler error: in extract_insn, at recog.c:1990

[ramana at gcc dot gnu dot org]

------- Comment #7 from ramana at gcc dot gnu dot org  2009-03-30 18:35 -------
*** Bug 36415 has been marked as a duplicate of this bug. ***


-- 

ramana at gcc dot gnu dot org changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
                 CC|                            |aurelien at aurel32 dot net


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=37436

[Bug target/37436] arm-cross-g++. internal compiler error: in extract_insn, at recog.c:1990

[ramana at gcc dot gnu dot org]

------- Comment #9 from ramana at gcc dot gnu dot org  2009-04-29 15:53 -------
*** Bug 36920 has been marked as a duplicate of this bug. ***


-- 

ramana at gcc dot gnu dot org changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
                 CC|                            |john dot spelis at 3dlabs
                   |                            |dot com


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=37436

[Bug target/37436] arm-cross-g++. internal compiler error: in extract_insn, at recog.c:1990

[rguenth at gcc dot gnu dot org]

------- Comment #10 from rguenth at gcc dot gnu dot org  2009-08-04 12:29 -------
GCC 4.3.4 is being released, adjusting target milestone.


-- 

rguenth at gcc dot gnu dot org changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
   Target Milestone|4.3.4                       |4.3.5


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=37436

[Bug target/37436] arm-cross-g++. internal compiler error: in extract_insn, at recog.c:1990

[ramana at gcc dot gnu dot org]

------- Comment #11 from ramana at gcc dot gnu dot org  2009-09-18 21:30 -------
Mine - I'm testing a backport.


-- 

ramana at gcc dot gnu dot org changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
         AssignedTo|rearnsha at gcc dot gnu dot |ramana at gcc dot gnu dot
                   |org                         |org
             Status|REOPENED                    |ASSIGNED
   Last reconfirmed|2008-12-10 16:54:35         |2009-09-18 21:30:22
               date|                            |


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=37436

[Bug target/37436] arm-cross-g++. internal compiler error: in extract_insn, at recog.c:1990

[rguenth at gcc dot gnu dot org]

------- Comment #12 from rguenth at gcc dot gnu dot org  2010-05-22 18:12 -------
GCC 4.3.5 is being released, adjusting target milestone.


-- 

rguenth at gcc dot gnu dot org changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
   Target Milestone|4.3.5                       |4.3.6


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=37436

[Bug target/37436] arm-cross-g++. internal compiler error: in extract_insn, at recog.c:1990

[ramana at gcc dot gnu.org]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=37436

Ramana Radhakrishnan <ramana at gcc dot gnu.org> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|ASSIGNED                    |RESOLVED
         Resolution|---                         |FIXED

--- Comment #13 from Ramana Radhakrishnan <ramana at gcc dot gnu.org> ---
4.3 branch is closed and looks like my backport never made it. Closing this out
as it got fixed in a 4.4.0 release I suspect

[Bug target/37436] arm-cross-g++. internal compiler error: in extract_insn, at recog.c:1990

[ramana at gcc dot gnu.org]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=37436

Ramana Radhakrishnan <ramana at gcc dot gnu.org> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
   Target Milestone|---                         |4.4.0

[Bug target/37436] arm-cross-g++. internal compiler error: in extract_insn, at recog.c:1990

[rguenth at gcc dot gnu.org]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=37436

Richard Guenther <rguenth at gcc dot gnu.org> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
   Target Milestone|4.3.6                       |---