[Bug target/29686] New: [4.1 Regression] ICE when building the kernel on ARM

[Bug target/29686] New: [4.1 Regression] ICE when building the kernel on ARM

[vapier at gentoo dot org]

when cross-compiling the kernel for ARM with gcc-4.1.1, we hit an ICE:

include/asm/arch/io.h: In function 'imu_dev_init':
include/asm/arch/io.h:43: internal compiler error: Segmentation fault

checked on a Gentoo ppc/x86_64 host for the arm target with gcc-3.4.6 and
gcc-4.1.1 and gcc-4.1-20061027 gcc-4.2-20061014 ... only the 4.1.x versions
failed


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           Summary: [4.1 Regression] ICE when building the kernel on ARM
           Product: gcc
           Version: 4.1.2
            Status: UNCONFIRMED
          Severity: normal
          Priority: P3
         Component: target
        AssignedTo: unassigned at gcc dot gnu dot org
        ReportedBy: vapier at gentoo dot org
  GCC host triplet: x86_64-linux
GCC target triplet: arm-linux


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=29686

[Bug target/29686] [4.1 Regression] ICE when building the kernel on ARM

[vapier at gentoo dot org]

------- Comment #1 from vapier at gentoo dot org  2006-11-02 06:53 -------
Created an attachment (id=12532)
 --> (http://gcc.gnu.org/bugzilla/attachment.cgi?id=12532&action=view)
PR29686-reduced-O1-only.i

this is a reduced test case that only fails with -O1 :)

vapier@G5[ppc] 0 ~ $ arm-unknown-linux-gnu-gcc -c PR29686-reduced-O1-only.i -O0
vapier@G5[ppc] 0 ~ $ arm-unknown-linux-gnu-gcc -c PR29686-reduced-O1-only.i -O2
vapier@G5[ppc] 0 ~ $ arm-unknown-linux-gnu-gcc -c PR29686-reduced-O1-only.i -O3
vapier@G5[ppc] 0 ~ $ arm-unknown-linux-gnu-gcc -c PR29686-reduced-O1-only.i -O1
PR29686-reduced-O1-only.i: In function 'meremap':
PR29686-reduced-O1-only.i:5: internal compiler error: Segmentation fault
Please submit a full bug report,
with preprocessed source if appropriate.
See <URL:http://bugs.gentoo.org/> for instructions.


-- 


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=29686

[Bug target/29686] [4.1 Regression] ICE when building the kernel on ARM

[vapier at gentoo dot org]

------- Comment #2 from vapier at gentoo dot org  2006-11-02 06:54 -------
Created an attachment (id=12533)
 --> (http://gcc.gnu.org/bugzilla/attachment.cgi?id=12533&action=view)
PR29686-original.i

this is the original testcase that fails at -O[123] but not -O0

vapier@G5[ppc] 0 ~ $ arm-unknown-linux-gnu-gcc -c PR29686-original.i -O0
vapier@G5[ppc] 0 ~ $ arm-unknown-linux-gnu-gcc -c PR29686-original.i -O1
include/asm/arch/io.h: In function 'imu_dev_init':
include/asm/arch/io.h:43: internal compiler error: Segmentation fault
Please submit a full bug report,
with preprocessed source if appropriate.
See <URL:http://bugs.gentoo.org/> for instructions.
vapier@G5[ppc] 0 ~ $ arm-unknown-linux-gnu-gcc -c PR29686-original.i -O2
include/asm/arch/io.h: In function 'imu_dev_init':
include/asm/arch/io.h:43: internal compiler error: Segmentation fault
Please submit a full bug report,
with preprocessed source if appropriate.
See <URL:http://bugs.gentoo.org/> for instructions.
vapier@G5[ppc] 0 ~ $ arm-unknown-linux-gnu-gcc -c PR29686-original.i -O3
include/asm/arch/io.h: In function 'imu_dev_init':
include/asm/arch/io.h:43: internal compiler error: Segmentation fault
Please submit a full bug report,
with preprocessed source if appropriate.
See <URL:http://bugs.gentoo.org/> for instructions.


-- 


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=29686

[Bug target/29686] [4.1 Regression] ICE when building the kernel on ARM

[falk at debian dot org]

------- Comment #3 from falk at debian dot org  2006-11-02 13:40 -------
Confirmed with a native 4.1.2 20061020.


-- 

falk at debian dot org changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|UNCONFIRMED                 |NEW
     Ever Confirmed|0                           |1


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=29686

[Bug target/29686] [4.1 Regression] ICE when building the kernel on ARM

[pinskia at gcc dot gnu dot org]

-- 

pinskia at gcc dot gnu dot org changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
   Target Milestone|---                         |4.1.2


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=29686

[Bug tree-optimization/29686] [4.1 Regression] ICE when expanding recursive function containing switch

[rearnsha at gcc dot gnu dot org]

------- Comment #4 from rearnsha at gcc dot gnu dot org  2007-01-22 12:04 -------
The reduced testcase also ices on a native i386 build.  The problem seems to
crop up somewhere in t81.ivopts pass where a switch statement variable is
transformed from an integral calculation into a cast of a void* pointer to an
integral expression.  Further simplification then removes that cast and thus
causes an invalid type to be passed to the switch expander.  This then crashes
because the pointer type has no 'min value'.


-- 

rearnsha at gcc dot gnu dot org changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
                 CC|                            |rearnsha at gcc dot gnu dot
                   |                            |org
          Component|target                      |tree-optimization
 GCC target triplet|arm-linux                   |
            Summary|[4.1 Regression] ICE when   |[4.1 Regression] ICE when
                   |building the kernel on ARM  |expanding recursive function
                   |                            |containing switch


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=29686

[Bug tree-optimization/29686] [4.1 Regression] ICE when expanding recursive function containing switch

[mmitchel at gcc dot gnu dot org]

-- 

mmitchel at gcc dot gnu dot org changed:

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


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=29686

[Bug tree-optimization/29686] [4.1 Regression] ICE when expanding recursive function containing switch

[mmitchel at gcc dot gnu dot org]

-- 

mmitchel at gcc dot gnu dot org changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
   Target Milestone|4.1.2                       |4.1.3


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=29686

[Bug tree-optimization/29686] [4.1 Regression] ICE when expanding recursive function containing switch

[jsm28 at gcc dot gnu dot org]

------- Comment #5 from jsm28 at gcc dot gnu dot org  2008-07-04 15:53 -------
Closing 4.1 branch.


-- 

jsm28 at gcc dot gnu dot org changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|NEW                         |RESOLVED
      Known to fail|4.1.1                       |4.1.1 4.1.3
         Resolution|                            |FIXED
   Target Milestone|4.1.3                       |4.2.0


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=29686