[Bug c/42164] New: mm/rmap.c:860:1: internal compiler error: in simplify_subreg, at simplify-rtx.c:5138

[Bug c/42164] New: mm/rmap.c:860:1: internal compiler error: in simplify_subreg, at simplify-rtx.c:5138

[wuzhangjin at gmail dot com]

I'm using the latest gcc 4.5 to compile the latest linux kernel(rc8).

$ mips64el-unknown-linux-gnu-gcc --version
mips64el-unknown-linux-gnu-gcc (GCC) 4.5.0 20091123 (experimental)

and encountered this error:

$ make ARCH=mips CROSS_COMPILE=mips64el-unknown-linux-gnu- mm/rmap.o
  CHK     include/linux/version.h
  CHK     include/linux/utsrelease.h
  SYMLINK include/asm -> include/asm-mips
  Checking missing-syscalls for N32
  CALL    scripts/checksyscalls.sh
  Checking missing-syscalls for O32
  CALL    scripts/checksyscalls.sh
  CALL    scripts/checksyscalls.sh
  CC      mm/rmap.o
mm/rmap.c: In function 'try_to_unmap_one':
mm/rmap.c:860:1: internal compiler error: in simplify_subreg, at
simplify-rtx.c:5138
Please submit a full bug report,

I have tried to find the exact place which introduced this error and at
last found out this line of that file:

818               swp_entry_t entry = { .val = page_private(page) };

If I change that line to:

        swp_entry_t entry = { .val = 1 };

the error will go away.

and I found that page_privete(page) is something like this:

include/linux/mm.h:

228 #define page_private(page)              ((page)->private)

So, I moved that (page)->private to the above directly, and try it with:

            swp_entry_t entry = { .val = ((page)->private) };
and 

            swp_entry_t entry = { .val = (page)->private };
and

            swp_entry_t entry = { .val = page->private };

and even tried with:

             swp_entry_t entry;
            entry.val = page->private;  

All of them failed, at last, I found the line of gcc:

5130 /* Simplify SUBREG:OUTERMODE(OP:INNERMODE, BYTE)
5131    Return 0 if no simplifications are possible.  */
5132 rtx
5133 simplify_subreg (enum machine_mode outermode, rtx op, 
5134                  enum machine_mode innermode, unsigned int byte)
5135 {
5136   /* Little bit of sanity checking.  */
5137   gcc_assert (innermode != VOIDmode);

5138   gcc_assert (outermode != VOIDmode);      --> This line.....

5139   gcc_assert (innermode != BLKmode);
5140   gcc_assert (outermode != BLKmode);


-- 
           Summary: mm/rmap.c:860:1: internal compiler error: in
                    simplify_subreg, at simplify-rtx.c:5138
           Product: gcc
           Version: 4.5.0
            Status: UNCONFIRMED
          Severity: blocker
          Priority: P3
         Component: c
        AssignedTo: unassigned at gcc dot gnu dot org
        ReportedBy: wuzhangjin at gmail dot com
 GCC build triplet: i486-cross-linux-gnu
  GCC host triplet: i486-cross-linux-gnu
GCC target triplet: mips64el-unknown-linux-gnu


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=42164

[Bug target/42164] mm/rmap.c:860:1: internal compiler error: in simplify_subreg, at simplify-rtx.c:5138

[pinskia at gcc dot gnu dot org]

-- 

pinskia at gcc dot gnu dot org changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
           Severity|blocker                     |normal
          Component|c                           |target


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=42164

[Bug target/42164] mm/rmap.c:860:1: internal compiler error: in simplify_subreg, at simplify-rtx.c:5138

[pinskia at gcc dot gnu dot org]

------- Comment #1 from pinskia at gcc dot gnu dot org  2009-11-24 16:23 -------
Can you provide the preprocessed source?


-- 

pinskia at gcc dot gnu dot org changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|UNCONFIRMED                 |WAITING


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=42164

[Bug target/42164] mm/rmap.c:860:1: internal compiler error: in simplify_subreg, at simplify-rtx.c:5138

[wuzhangjin at gmail dot com]

------- Comment #2 from wuzhangjin at gmail dot com  2009-11-25 01:05 -------
(In reply to comment #1)
> Can you provide the preprocessed source?
> 

Sorry, the preprocessed source is too big, I can not paste it as comment, where
can i attach it?


-- 


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=42164

[Bug target/42164] mm/rmap.c:860:1: internal compiler error: in simplify_subreg, at simplify-rtx.c:5138

[wuzhangjin at gmail dot com]

------- Comment #3 from wuzhangjin at gmail dot com  2009-11-25 01:08 -------
(In reply to comment #2)
> (In reply to comment #1)
> > Can you provide the preprocessed source?
> > 
> 
> Sorry, the preprocessed source is too big, I can not paste it as comment, where
> can i attach it?
> 

Here is the function relative part:

static int try_to_unmap_one(struct page *page, struct vm_area_struct *vma,
    enum ttu_flags flags)
{
 struct mm_struct *mm = vma->vm_mm;
 unsigned long address;
 pte_t *pte;
 pte_t pteval;
 spinlock_t *ptl;
 int ret = 1;

 address = vma_address(page, vma);
 if (address == -14)
  goto out;

 pte = page_check_address(page, mm, address, &ptl, 0);
 if (!pte)
  goto out;






 if (!(flags & TTU_IGNORE_MLOCK)) {
  if (vma->vm_flags & 0x00002000) {
   ret = 3;
   goto out_unmap;
  }
 }
 if (!(flags & TTU_IGNORE_ACCESS)) {
  if (({ int __young; __young = ({ pte_t __pte = *(pte); int r = 1; if
(!pte_young(__pte)) r = 0; else set_pte((pte), pte_mkold(__pte)); r; }); if
(__young) local_flush_tlb_page(vma, address); __young; })) {
   ret = 2;
   goto out_unmap;
  }
   }


 flush_cache_page(vma, address, ({ struct page *__pg = (page); int __sec =
page_to_section(__pg); (unsigned long)(__pg -
__section_mem_map_addr(__nr_to_section(__sec))); }));
 pteval = ({ pte_t __pte; __pte = ({ pte_t __pte = *(pte);
pte_clear(((vma)->vm_mm), (address), (pte)); __pte; });
local_flush_tlb_page(vma, address); __pte; });


 if (pte_dirty(pteval))
  set_page_dirty(page);


 do { unsigned long _rss = (((mm)->_file_rss) + ((mm)->_anon_rss)); if
((mm)->hiwater_rss < _rss) (mm)->hiwater_rss = _rss; } while (0);

 if (PageHWPoison(page) && !(flags & TTU_IGNORE_HWPOISON)) {
  if (PageAnon(page))
   (mm)->_anon_rss--;
  else
   (mm)->_file_rss--;
  set_pte(pte, swp_entry_to_pte(make_hwpoison_entry(page)))
                                                ;
 } else if (PageAnon(page)) {
  swp_entry_t entry = { .val = ((page)->private) };

  if (PageSwapCache(page)) {




   swap_duplicate(entry);
   if (list_empty(&mm->mmlist)) {
    do { do { do { (__current_thread_info->preempt_count) += (1); } while (0);
__asm__ __volatile__("": : :"memory"); } while (0); (void)0;
(void)(&mmlist_lock); } while (0);
    if (list_empty(&mm->mmlist))
     list_add(&mm->mmlist, &init_mm.mmlist);
    do { do { do { __asm__ __volatile__("": : :"memory"); do {
(__current_thread_info->preempt_count) -= (1); } while (0); } while (0);
__asm__ __volatile__("": : :"memory"); do { if
(__builtin_expect(!!(test_ti_thread_flag(__current_thread_info, 2)), 0))
preempt_schedule(); } while (0); } while (0); (void)0; (void)(&mmlist_lock); }
while (0);
   }
   (mm)->_anon_rss--;
  } else if (0) {





   __BUG_ON((unsigned long)(((flags) & TTU_ACTION_MASK) != TTU_MIGRATION));
   entry = swp_entry(0, 0);
  }
  set_pte(pte, swp_entry_to_pte(entry));
  __BUG_ON((unsigned long)(pte_file(*pte)));
 } else if (0 && (((flags) & TTU_ACTION_MASK) == TTU_MIGRATION)) {

  swp_entry_t entry;
  entry = swp_entry(0, 0);
  set_pte(pte, swp_entry_to_pte(entry));
 } else
  (mm)->_file_rss--;


 page_remove_rmap(page);
 put_page(page);

out_unmap:
 do { do { do { do { __asm__ __volatile__("": : :"memory"); do {
(__current_thread_info->preempt_count) -= (1); } while (0); } while (0);
__asm__ __volatile__("": : :"memory"); do { if
(__builtin_expect(!!(test_ti_thread_flag(__current_thread_info, 2)), 0))
preempt_schedule(); } while (0); } while (0); (void)0; (void)(ptl); } while
(0); ((void)(pte)); } while (0);
out:
 return ret;
}


-- 


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=42164

[Bug target/42164] mm/rmap.c:860:1: internal compiler error: in simplify_subreg, at simplify-rtx.c:5138

[daney at gcc dot gnu dot org]

------- Comment #4 from daney at gcc dot gnu dot org  2009-11-25 01:10 -------
(In reply to comment #2)
> (In reply to comment #1)
> > Can you provide the preprocessed source?
> > 
> 
> Sorry, the preprocessed source is too big, I can not paste it as comment, where
> can i attach it?
> 

Gzip it and attach it.

We need the whole thing as well as tell us exactly how you compiled it.


-- 


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=42164

[Bug target/42164] mm/rmap.c:860:1: internal compiler error: in simplify_subreg, at simplify-rtx.c:5138

[wuzhangjin at gmail dot com]

------- Comment #5 from wuzhangjin at gmail dot com  2009-11-25 01:17 -------
Subject: Re:  mm/rmap.c:860:1: internal compiler error:
 in simplify_subreg, at simplify-rtx.c:5138

On Wed, 2009-11-25 at 01:10 +0000, daney at gcc dot gnu dot org wrote:
> 
> ------- Comment #4 from daney at gcc dot gnu dot org  2009-11-25 01:10 -------
> (In reply to comment #2)
> > (In reply to comment #1)
> > > Can you provide the preprocessed source?
> > > 
> > 
> > Sorry, the preprocessed source is too big, I can not paste it as comment, where
> > can i attach it?
> > 
> 
> Gzip it and attach it.
> 
> We need the whole thing as well as tell us exactly how you compiled it.
> 
> 

I generated the mm/rmap.i by the following command, the result is
attached as rmap.i.tar.bz2. and the next comment will describe the
command I used to build the gcc itself.

$ make ARCH=mips CROSS_COMPILE=mips64el-unknown-linux-gnu- mm/rmap.i V=1

rm -f include/config/kernel.release
echo 2.6.32-rc8 > include/config/kernel.release
set -e; : '  CHK     include/linux/version.h'; mkdir -p include/linux/;
(echo \#define LINUX_VERSION_CODE 132640; echo '#define
KERNEL_VERSION(a,b,c) (((a) << 16) + ((b) << 8) + (c))';)
< /home/falcon/rt4ls/Makefile > include/linux/version.h.tmp; if [ -r
include/linux/version.h ] && cmp -s include/linux/version.h
include/linux/version.h.tmp; then rm -f include/linux/version.h.tmp;
else : '  UPD     include/linux/version.h'; mv -f
include/linux/version.h.tmp include/linux/version.h; fi
set -e; : '  CHK     include/linux/utsrelease.h'; mkdir -p
include/linux/;         if [ `echo -n "2.6.32-rc8" | wc -c ` -gt 64 ]; then
echo '"2.6.32-rc8" exceeds 64 characters' >&2; exit 1; fi; (echo
\#define UTS_RELEASE \"2.6.32-rc8\";) < include/config/kernel.release >
include/linux/utsrelease.h.tmp; if [ -r include/linux/utsrelease.h ] &&
cmp -s include/linux/utsrelease.h include/linux/utsrelease.h.tmp; then
rm -f include/linux/utsrelease.h.tmp; else : '  UPD
include/linux/utsrelease.h'; mv -f include/linux/utsrelease.h.tmp
include/linux/utsrelease.h; fi
set -e; if [ -L include/asm ]; then asmlink=`readlink include/asm | cut
-d '-' -f 2`; if [ "$asmlink" != "mips" ]; then echo "ERROR: the symlink
include/asm points to asm-$asmlink but asm-mips was expected"; echo "
set ARCH or save .config and run 'make mrproper' to fix it"; exit 1; fi;
test -e $asmlink || rm include/asm; elif [ -d include/asm ]; then echo
"ERROR: include/asm is a directory but a symlink was expected"; exit 1;
fi
if [ ! -L include/asm ]; then : '  SYMLINK include/asm ->
include/asm-mips'; if [ ! -d include/asm-mips ]; then mkdir -p
include/asm-mips; fi; ln -fsn asm-mips include/asm; fi
mkdir -p .tmp_versions 
make -f scripts/Makefile.build obj=scripts/basic
  Checking missing-syscalls for N32
make -f scripts/Makefile.build obj=. missing-syscalls
EXTRA_CFLAGS="-mabi=n32"
  /bin/sh scripts/checksyscalls.sh mips64el-unknown-linux-gnu-gcc
-Wp,-MD,./.missing-syscalls.d  -nostdinc
-isystem
/home/falcon/gcc/cross-mipsel/target/lib/gcc/mips64el-unknown-linux-gnu/4.5.0/include
-Iinclude  -I/home/falcon/rt4ls/arch/mips/include -include
include/linux/autoconf.h -D__KERNEL__
-D"VMLINUX_LOAD_ADDRESS=0xffffffff80200000" -D"DATAOFFSET=0" -Wall -Wundef
-Wstrict-prototypes -Wno-trigraphs -fno-strict-aliasing -fno-common
-Werror-implicit-function-declaration -Wno-format-security
-fno-delete-null-pointer-checks -O2 -ffunction-sections
-mno-check-zero-division -mabi=64 -G 0 -mno-abicalls -fno-pic -pipe
-msoft-float -ffreestanding -Wa,--trap -march=loongson2f
-Wa,-mfix-loongson2f-nop -Wa,-mfix-loongson2f-jump
-I/home/falcon/rt4ls/arch/mips/include/asm/mach-loongson -mno-branch-likely
-I/home/falcon/rt4ls/arch/mips/include/asm/mach-generic -msym32
-DKBUILD_64BIT_SYM32 -Wframe-larger-than=1024 -fno-stack-protector
-fomit-frame-pointer -Wdeclaration-after-statement -Wno-pointer-sign
-fno-strict-overflow -fno-dwarf2-cfi-asm -fconserve-stack -mabi=n32  
-D"KBUILD_STR(s)=#s" -D"KBUILD_BASENAME=KBUILD_STR(missing_syscalls)" 
-D"KBUILD_MODNAME=KBUILD_STR(missing_syscalls)" 
  Checking missing-syscalls for O32
make -f scripts/Makefile.build obj=. missing-syscalls
EXTRA_CFLAGS="-mabi=32"
  /bin/sh scripts/checksyscalls.sh mips64el-unknown-linux-gnu-gcc
-Wp,-MD,./.missing-syscalls.d  -nostdinc
-isystem
/home/falcon/gcc/cross-mipsel/target/lib/gcc/mips64el-unknown-linux-gnu/4.5.0/include
-Iinclude  -I/home/falcon/rt4ls/arch/mips/include -include
include/linux/autoconf.h -D__KERNEL__
-D"VMLINUX_LOAD_ADDRESS=0xffffffff80200000" -D"DATAOFFSET=0" -Wall -Wundef
-Wstrict-prototypes -Wno-trigraphs -fno-strict-aliasing -fno-common
-Werror-implicit-function-declaration -Wno-format-security
-fno-delete-null-pointer-checks -O2 -ffunction-sections
-mno-check-zero-division -mabi=64 -G 0 -mno-abicalls -fno-pic -pipe
-msoft-float -ffreestanding -Wa,--trap -march=loongson2f
-Wa,-mfix-loongson2f-nop -Wa,-mfix-loongson2f-jump
-I/home/falcon/rt4ls/arch/mips/include/asm/mach-loongson -mno-branch-likely
-I/home/falcon/rt4ls/arch/mips/include/asm/mach-generic -msym32
-DKBUILD_64BIT_SYM32 -Wframe-larger-than=1024 -fno-stack-protector
-fomit-frame-pointer -Wdeclaration-after-statement -Wno-pointer-sign
-fno-strict-overflow -fno-dwarf2-cfi-asm -fconserve-stack -mabi=32  
-D"KBUILD_STR(s)=#s" -D"KBUILD_BASENAME=KBUILD_STR(missing_syscalls)" 
-D"KBUILD_MODNAME=KBUILD_STR(missing_syscalls)" 
make -f scripts/Makefile.build obj=.
mkdir -p kernel/
mkdir -p arch/mips/kernel/
make -f scripts/Makefile.build obj=. missing-syscalls
  /bin/sh scripts/checksyscalls.sh mips64el-unknown-linux-gnu-gcc
-Wp,-MD,./.missing-syscalls.d  -nostdinc
-isystem
/home/falcon/gcc/cross-mipsel/target/lib/gcc/mips64el-unknown-linux-gnu/4.5.0/include
-Iinclude  -I/home/falcon/rt4ls/arch/mips/include -include
include/linux/autoconf.h -D__KERNEL__
-D"VMLINUX_LOAD_ADDRESS=0xffffffff80200000" -D"DATAOFFSET=0" -Wall -Wundef
-Wstrict-prototypes -Wno-trigraphs -fno-strict-aliasing -fno-common
-Werror-implicit-function-declaration -Wno-format-security
-fno-delete-null-pointer-checks -O2 -ffunction-sections
-mno-check-zero-division -mabi=64 -G 0 -mno-abicalls -fno-pic -pipe
-msoft-float -ffreestanding -Wa,--trap -march=loongson2f
-Wa,-mfix-loongson2f-nop -Wa,-mfix-loongson2f-jump
-I/home/falcon/rt4ls/arch/mips/include/asm/mach-loongson -mno-branch-likely
-I/home/falcon/rt4ls/arch/mips/include/asm/mach-generic -msym32
-DKBUILD_64BIT_SYM32 -Wframe-larger-than=1024 -fno-stack-protector
-fomit-frame-pointer -Wdeclaration-after-statement -Wno-pointer-sign
-fno-strict-overflow -fno-dwarf2-cfi-asm -fconserve-stack  
-D"KBUILD_STR(s)=#s" -D"KBUILD_BASENAME=KBUILD_STR(missing_syscalls)" 
-D"KBUILD_MODNAME=KBUILD_STR(missing_syscalls)" 
make -f scripts/Makefile.build obj=scripts
make -f scripts/Makefile.build obj=scripts/genksyms
make -f scripts/Makefile.build obj=scripts/mod
make -f scripts/Makefile.build obj=mm mm/rmap.i
  mips64el-unknown-linux-gnu-gcc -E -Wp,-MD,mm/.rmap.i.d  -nostdinc
-isystem
/home/falcon/gcc/cross-mipsel/target/lib/gcc/mips64el-unknown-linux-gnu/4.5.0/include
-Iinclude  -I/home/falcon/rt4ls/arch/mips/include -include
include/linux/autoconf.h -D__KERNEL__
-D"VMLINUX_LOAD_ADDRESS=0xffffffff80200000" -D"DATAOFFSET=0" -Wall -Wundef
-Wstrict-prototypes -Wno-trigraphs -fno-strict-aliasing -fno-common
-Werror-implicit-function-declaration -Wno-format-security
-fno-delete-null-pointer-checks -O2 -ffunction-sections
-mno-check-zero-division -mabi=64 -G 0 -mno-abicalls -fno-pic -pipe
-msoft-float -ffreestanding -Wa,--trap -march=loongson2f
-Wa,-mfix-loongson2f-nop -Wa,-mfix-loongson2f-jump
-I/home/falcon/rt4ls/arch/mips/include/asm/mach-loongson -mno-branch-likely
-I/home/falcon/rt4ls/arch/mips/include/asm/mach-generic -msym32
-DKBUILD_64BIT_SYM32 -Wframe-larger-than=1024 -fno-stack-protector
-fomit-frame-pointer -Wdeclaration-after-statement -Wno-pointer-sign
-fno-strict-overflow -fno-dwarf2-cfi-asm -fconserve-stack  
-D"KBUILD_STR(s)=#s" -D"KBUILD_BASENAME=KBUILD_STR(rmap)" 
-D"KBUILD_MODNAME=KBUILD_STR(rmap)"    -o mm/rmap.i mm/rmap.c


------- Comment #6 from wuzhangjin at gmail dot com  2009-11-25 01:17 -------
Created an attachment (id=19139)
 --> (http://gcc.gnu.org/bugzilla/attachment.cgi?id=19139&action=view)


-- 


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=42164

[Bug target/42164] mm/rmap.c:860:1: internal compiler error: in simplify_subreg, at simplify-rtx.c:5138

[wuzhangjin at gmail dot com]

------- Comment #7 from wuzhangjin at gmail dot com  2009-11-25 01:23 -------
(In reply to comment #6)
> Created an attachment (id=19139)
 --> (http://gcc.gnu.org/bugzilla/attachment.cgi?id=19139&action=view) [edit]
> 

I configured and compiled the gcc via the following command:

$ /home/falcon/gcc/cross-mipsel/src/gcc/configure
--prefix=/home/falcon/gcc/cross-mipsel/target/ --build=i486-cross-linux-gnu
--host=i486-cross-linux-gnu --target=mips64el-unknown-linux-gnu
--with-local-prefix=/home/falcon/gcc/cross-mipsel/tools/ --disable-nls
--disable-shared --with-mpfr=/home/falcon/gcc/cross-mipsel/target/
--with-gmp=/home/falcon/gcc/cross-mipsel/target/
--with-ppl=//home/falcon/gcc/cross-mipsel/target/
--with-cloog=/home/falcon/gcc/cross-mipsel/target/ --without-headers
--with-newlib --disable-decimal-float --disable-libgomp --disable-libmudflap
--disable-libssp --disable-threads --with-abi=64
build_alias=i486-cross-linux-gnu host_alias=i486-cross-linux-gnu
target_alias=mips64el-unknown-linux-gnu
LDFLAGS=-Wl,-rpath,//home/falcon/gcc/cross-mipsel/target//lib AR=ar AS=as
--enable-languages=c --no-create --no-recursion

$ make all-gcc all-target-libgcc -j8 


-- 


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=42164

[Bug target/42164] mm/rmap.c:860:1: internal compiler error: in simplify_subreg, at simplify-rtx.c:5138

[daney at gcc dot gnu dot org]

[-- Warning: decoded text below may be mangled, UTF-8 assumed --]
[-- Attachment #1: Type: text/plain, Size: 887 bytes --]



------- Comment #8 from daney at gcc dot gnu dot org  2009-12-01 07:26 -------
Created an attachment (id=19193)
 --> (http://gcc.gnu.org/bugzilla/attachment.cgi?id=19193&action=view)
Reduced testcase

Configured as:
../trunk/configure --target=mips64-linux
--with-sysroot=/home/daney/mips64-linux --prefix=/home/daney/mips64-linux
--with-arch=mips64r2 --enable-languages=c,c++

mips64-linux-gcc -O2 -mabi=64 bug-42164.i
bug-42164.i: In function ‘swp_entry_to_pte’:
bug-42164.i:44:1: internal compiler error: in simplify_subreg, at
simplify-rtx.c:5138


-- 

daney at gcc dot gnu dot org changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
  Attachment #19139|0                           |1
        is obsolete|                            |


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=42164

[Bug target/42164] mm/rmap.c:860:1: internal compiler error: in simplify_subreg, at simplify-rtx.c:5138

[daney at gcc dot gnu dot org]

-- 

daney at gcc dot gnu dot org changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|WAITING                     |NEW
     Ever Confirmed|0                           |1
   Last reconfirmed|2009-12-01 07:27:09         |2009-12-01 07:27:20
               date|                            |


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=42164

[Bug target/42164] [4.5 Regression] internal compiler error: in simplify_subreg, at simplify-rtx.c:5138

[daney at gcc dot gnu dot org]

-- 

daney at gcc dot gnu dot org changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
   Target Milestone|---                         |4.5.0


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=42164

[Bug target/42164] [4.5 Regression] internal compiler error: in simplify_subreg, at simplify-rtx.c:5138

[daney at gcc dot gnu dot org]

------- Comment #9 from daney at gcc dot gnu dot org  2009-12-02 00:18 -------
Created an attachment (id=19203)
 --> (http://gcc.gnu.org/bugzilla/attachment.cgi?id=19203&action=view)
More reduced testcase.

A more reduced testcase.


-- 

daney at gcc dot gnu dot org changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
  Attachment #19193|0                           |1
        is obsolete|                            |


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=42164

[Bug target/42164] [4.5 Regression] internal compiler error: in simplify_subreg, at simplify-rtx.c:5138

[daney at gcc dot gnu dot org]

------- Comment #10 from daney at gcc dot gnu dot org  2009-12-02 00:21 -------
Created an attachment (id=19204)
 --> (http://gcc.gnu.org/bugzilla/attachment.cgi?id=19204&action=view)
A possible patch.

This patch allows me to build the kernel without ICEing, but the resulting
image will not fully boot, so there may still be bugs with this patch or
elsewhere.


-- 


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=42164

[Bug target/42164] [4.5 Regression] internal compiler error: in simplify_subreg, at simplify-rtx.c:5138

[daney at gcc dot gnu dot org]

------- Comment #11 from daney at gcc dot gnu dot org  2009-12-02 01:38 -------
Created an attachment (id=19206)
 --> (http://gcc.gnu.org/bugzilla/attachment.cgi?id=19206&action=view)
A Patch that seems to actually work.

The first patch was bogus.  This patch actually works.  I will test it.


-- 

daney at gcc dot gnu dot org changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
  Attachment #19204|0                           |1
        is obsolete|                            |
         AssignedTo|unassigned at gcc dot gnu   |daney at gcc dot gnu dot org
                   |dot org                     |
             Status|NEW                         |ASSIGNED


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=42164

[Bug target/42164] [4.5 Regression] internal compiler error: in simplify_subreg, at simplify-rtx.c:5138

[rguenth at gcc dot gnu dot org]

-- 

rguenth at gcc dot gnu dot org changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
           Priority|P3                          |P1


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=42164

[Bug rtl-optimization/42164] [4.5 Regression] internal compiler error: in simplify_subreg, at simplify-rtx.c:5138

[daney at gcc dot gnu dot org]

------- Comment #12 from daney at gcc dot gnu dot org  2009-12-04 17:46 -------
Subject: Bug 42164

Author: daney
Date: Fri Dec  4 17:46:23 2009
New Revision: 154987

URL: http://gcc.gnu.org/viewcvs?root=gcc&view=rev&rev=154987
Log:
2009-12-04  David Daney  <ddaney@caviumnetworks.com>

        PR rtl-optimization/42164
        * combine.c (combine_simplify_rtx): Handle truncation of integer
        constants.

2009-12-04  David Daney  <ddaney@caviumnetworks.com>

        PR rtl-optimization/42164
        * gcc.c-torture/compile/pr42164.c: New test.


Added:
    trunk/gcc/testsuite/gcc.c-torture/compile/pr42164.c
Modified:
    trunk/gcc/ChangeLog
    trunk/gcc/combine.c
    trunk/gcc/testsuite/ChangeLog


-- 


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=42164

[Bug rtl-optimization/42164] [4.5 Regression] internal compiler error: in simplify_subreg, at simplify-rtx.c:5138

[daney at gcc dot gnu dot org]

------- Comment #13 from daney at gcc dot gnu dot org  2009-12-04 18:20 -------
Fixed by the patch.


-- 

daney at gcc dot gnu dot org changed:

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


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=42164

[Bug rtl-optimization/42164] [4.5 Regression] internal compiler error: in simplify_subreg, at simplify-rtx.c:5138

[hjl at gcc dot gnu dot org]

------- Comment #14 from hjl at gcc dot gnu dot org  2009-12-11 23:38 -------
Subject: Bug 42164

Author: hjl
Date: Fri Dec 11 23:36:24 2009
New Revision: 155184

URL: http://gcc.gnu.org/viewcvs?root=gcc&view=rev&rev=155184
Log:
Backport testcases from trunk.

2009-12-11  H.J. Lu  <hongjiu.lu@intel.com>

        Backport from mainline:
        2009-12-11  Dodji Seketeli  <dodji@redhat.com>

        PR c++/42225
        * g++.dg/template/typedef24.C: New test.
        * g++.dg/template/typedef25.C: New test.

        2009-12-11  Dodji Seketeli  <dodji@redhat.com>

        PR c++/42251
        * g++.dg/template/const3.C: New test.

        2009-12-10  Jakub Jelinek  <jakub@redhat.com>

        PR c++/42317
        * g++.dg/opt/dtor2.C: New test.
        * g++.dg/opt/dtor2.h: New file.
        * g++.dg/opt/dtor2-aux.cc: New file.

        2009-12-10  Jan Hubicka  <jh@suse.cz>

        PR middle-end/42110
        * g++.dg/torture/pr42110.C: new file.

        2009-12-07  Jakub Jelinek  <jakub@redhat.com>

        PR debug/42244
        * gcc.dg/debug/pr42244.c: New test.

        2009-12-04  David Daney  <ddaney@caviumnetworks.com>

        PR rtl-optimization/42164
        * gcc.c-torture/compile/pr42164.c: New test.

        2009-12-03  Jason Merrill  <jason@redhat.com>

        PR c++/41611
        * g++.dg/abi/guard2.C: New.

        2009-12-03  Dodji Seketeli  <dodji@redhat.com>

        PR c++/42217
        * g++.dg/other/bitfield4.C: New test.

        2009-12-03  Jakub Jelinek  <jakub@redhat.com>

        PR c++/42256
        * g++.dg/inherit/thunk11.C: New test.
        * g++.dg/inherit/thunk11.h: New file.
        * g++.dg/inherit/thunk11-aux.cc: New file.

        2009-12-01  Martin Jambor  <mjambor@suse.cz>

        PR tree-optimization/42237
        * gcc.c-torture/compile/pr42237.c: New test.

        2009-12-01  Paolo Carlini  <paolo.carlini@oracle.com>

        PR c++/42057
        * g++.dg/parse/crash54.C: New.

        2009-11-30  Martin Jambor  <mjambor@suse.cz>

        PR middle-end/42196
        * gcc.c-torture/compile/pr42196-1.c: New test.
        * gcc.c-torture/compile/pr42196-2.c: New test.
        * gcc.c-torture/compile/pr42196-3.c: New test.

        2009-11-30  Dodji Seketeli  <dodji@redhat.com>

        PR c++/42069
        * g++.dg/template/typedef23.C: New test.

        2009-11-29  H.J. Lu  <hongjiu.lu@intel.com>

        PR tree-optimization/41961
        * g++.dg/tree-ssa/pr41961.C: New.

        2009-11-29  Ira Rosen  <irar@il.ibm.com>

        PR tree-optimization/42193
        * gcc.dg/vect/pr42193.c: New test.

        2009-11-28  Richard Guenther  <rguenther@suse.de>

        PR tree-optimization/42183
        * g++.dg/torture/pr42183.C: New testcase.

        2009-11-27  Martin Jambor  <mjambor@suse.cz>

        PR middle-end/42006
        * gcc.c-torture/execute/pr42006.c: New test.

        2009-11-27  Michael Matz  <matz@suse.de>

        PR rtl-optimization/42084
        * gcc.dg/pr42084.c: New test.

        2009-11-27  Michael Matz  <matz@suse.de>

        PR c++/41906
        * g++.dg/tree-ssa/pr41906.C: New testcase.

        2009-11-26  Michael Matz  <matz@suse.de>

        PR tree-optimization/41905
        * g++.dg/tree-ssa/pr41905.C: New testcase.

        2009-11-24  Richard Guenther  <rguenther@suse.de>

        PR tree-optimization/42142
        * gcc.c-torture/execute/pr42142.c: New testcase.

        2009-11-24  Martin Jambor  <mjambor@suse.cz>

        PR tree-optimization/42154
        * gcc.c-torture/execute/pr42154.c: New test.

        2009-11-21  Martin Jambor  <mjambor@suse.cz>

        PR middle-end/42025
        * gcc.c-torture/compile/pr42025-1.c: New test.
        * gcc.c-torture/compile/pr42025-2.c: New test.

        2009-11-21  Jakub Jelinek  <jakub@redhat.com>

        PR tree-optimization/42078
        * gcc.dg/pr42078.c: New test.

Added:
    branches/gcc-4_4-branch/gcc/testsuite/g++.dg/abi/guard2.C
      - copied unchanged from r155170, trunk/gcc/testsuite/g++.dg/abi/guard2.C
    branches/gcc-4_4-branch/gcc/testsuite/g++.dg/inherit/thunk11-aux.cc
      - copied unchanged from r155170,
trunk/gcc/testsuite/g++.dg/inherit/thunk11-aux.cc
    branches/gcc-4_4-branch/gcc/testsuite/g++.dg/inherit/thunk11.C
      - copied unchanged from r155170,
trunk/gcc/testsuite/g++.dg/inherit/thunk11.C
    branches/gcc-4_4-branch/gcc/testsuite/g++.dg/inherit/thunk11.h
      - copied unchanged from r155170,
trunk/gcc/testsuite/g++.dg/inherit/thunk11.h
    branches/gcc-4_4-branch/gcc/testsuite/g++.dg/opt/dtor2-aux.cc
      - copied unchanged from r155170,
trunk/gcc/testsuite/g++.dg/opt/dtor2-aux.cc
    branches/gcc-4_4-branch/gcc/testsuite/g++.dg/opt/dtor2.C
      - copied unchanged from r155170, trunk/gcc/testsuite/g++.dg/opt/dtor2.C
    branches/gcc-4_4-branch/gcc/testsuite/g++.dg/opt/dtor2.h
      - copied unchanged from r155170, trunk/gcc/testsuite/g++.dg/opt/dtor2.h
    branches/gcc-4_4-branch/gcc/testsuite/g++.dg/other/bitfield4.C
      - copied unchanged from r155170,
trunk/gcc/testsuite/g++.dg/other/bitfield4.C
    branches/gcc-4_4-branch/gcc/testsuite/g++.dg/parse/crash54.C
      - copied unchanged from r155172,
trunk/gcc/testsuite/g++.dg/parse/crash54.C
    branches/gcc-4_4-branch/gcc/testsuite/g++.dg/template/const3.C
      - copied unchanged from r155170,
trunk/gcc/testsuite/g++.dg/template/const3.C
    branches/gcc-4_4-branch/gcc/testsuite/g++.dg/template/typedef23.C
      - copied unchanged from r155181,
trunk/gcc/testsuite/g++.dg/template/typedef23.C
    branches/gcc-4_4-branch/gcc/testsuite/g++.dg/template/typedef24.C
      - copied unchanged from r155170,
trunk/gcc/testsuite/g++.dg/template/typedef24.C
    branches/gcc-4_4-branch/gcc/testsuite/g++.dg/template/typedef25.C
      - copied unchanged from r155170,
trunk/gcc/testsuite/g++.dg/template/typedef25.C
    branches/gcc-4_4-branch/gcc/testsuite/g++.dg/torture/pr42110.C
      - copied unchanged from r155170,
trunk/gcc/testsuite/g++.dg/torture/pr42110.C
    branches/gcc-4_4-branch/gcc/testsuite/g++.dg/torture/pr42183.C
      - copied unchanged from r155181,
trunk/gcc/testsuite/g++.dg/torture/pr42183.C
    branches/gcc-4_4-branch/gcc/testsuite/g++.dg/tree-ssa/pr41905.C
      - copied unchanged from r155182,
trunk/gcc/testsuite/g++.dg/tree-ssa/pr41905.C
    branches/gcc-4_4-branch/gcc/testsuite/g++.dg/tree-ssa/pr41906.C
      - copied unchanged from r155182,
trunk/gcc/testsuite/g++.dg/tree-ssa/pr41906.C
    branches/gcc-4_4-branch/gcc/testsuite/g++.dg/tree-ssa/pr41961.C
      - copied unchanged from r155181,
trunk/gcc/testsuite/g++.dg/tree-ssa/pr41961.C
    branches/gcc-4_4-branch/gcc/testsuite/gcc.c-torture/compile/pr42025-1.c
      - copied unchanged from r155182,
trunk/gcc/testsuite/gcc.c-torture/compile/pr42025-1.c
    branches/gcc-4_4-branch/gcc/testsuite/gcc.c-torture/compile/pr42025-2.c
      - copied unchanged from r155182,
trunk/gcc/testsuite/gcc.c-torture/compile/pr42025-2.c
    branches/gcc-4_4-branch/gcc/testsuite/gcc.c-torture/compile/pr42164.c
      - copied unchanged from r155170,
trunk/gcc/testsuite/gcc.c-torture/compile/pr42164.c
    branches/gcc-4_4-branch/gcc/testsuite/gcc.c-torture/compile/pr42196-1.c
      - copied unchanged from r155181,
trunk/gcc/testsuite/gcc.c-torture/compile/pr42196-1.c
    branches/gcc-4_4-branch/gcc/testsuite/gcc.c-torture/compile/pr42196-2.c
      - copied unchanged from r155181,
trunk/gcc/testsuite/gcc.c-torture/compile/pr42196-2.c
    branches/gcc-4_4-branch/gcc/testsuite/gcc.c-torture/compile/pr42196-3.c
      - copied unchanged from r155181,
trunk/gcc/testsuite/gcc.c-torture/compile/pr42196-3.c
    branches/gcc-4_4-branch/gcc/testsuite/gcc.c-torture/compile/pr42237.c
      - copied unchanged from r155171,
trunk/gcc/testsuite/gcc.c-torture/compile/pr42237.c
    branches/gcc-4_4-branch/gcc/testsuite/gcc.c-torture/execute/pr42006.c
      - copied unchanged from r155181,
trunk/gcc/testsuite/gcc.c-torture/execute/pr42006.c
    branches/gcc-4_4-branch/gcc/testsuite/gcc.c-torture/execute/pr42142.c
      - copied unchanged from r155182,
trunk/gcc/testsuite/gcc.c-torture/execute/pr42142.c
    branches/gcc-4_4-branch/gcc/testsuite/gcc.c-torture/execute/pr42154.c
      - copied unchanged from r155182,
trunk/gcc/testsuite/gcc.c-torture/execute/pr42154.c
    branches/gcc-4_4-branch/gcc/testsuite/gcc.dg/debug/pr42244.c
      - copied unchanged from r155170,
trunk/gcc/testsuite/gcc.dg/debug/pr42244.c
    branches/gcc-4_4-branch/gcc/testsuite/gcc.dg/pr42078.c
      - copied unchanged from r155182, trunk/gcc/testsuite/gcc.dg/pr42078.c
    branches/gcc-4_4-branch/gcc/testsuite/gcc.dg/pr42084.c
      - copied unchanged from r155182, trunk/gcc/testsuite/gcc.dg/pr42084.c
    branches/gcc-4_4-branch/gcc/testsuite/gcc.dg/vect/pr42193.c
      - copied unchanged from r155181,
trunk/gcc/testsuite/gcc.dg/vect/pr42193.c
Modified:
    branches/gcc-4_4-branch/gcc/testsuite/ChangeLog


-- 


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=42164