[Bug tree-optimization/24665] New: internal compiler error: get_indirect_ref_operands

[darin at usa dot net]

I get an internal compiler error when compiling the code below.  The compiler
error goes away if the "-fno-tree-ccp" is added to the command line.  The exact
error message is:

gccbug.cpp: In constructor 'Controller_t::Controller_t()':
gccbug.cpp:41: internal compiler error: in get_indirect_ref_operands, at
tree-ssa-operands.c:1453

This is not a duplicate of #21167.  That patch already appears to be in 4.0.2.

The "-v" option gives this configuration:
Using built-in specs.
Target: powerpc-603e-eabi
Configured with: /c/GCC/src/gcc-4.0.2/configure --target=powerpc-603e-eabi
--prefix=/c/GCC/powerpc-603e-eabi
--with-headers=/c/GCC/powerpc-603e-eabi/powerpc-603e-eabi/include
--with-local-prefix=/c/GCC/powerpc-603e-eabi/powerpc-603e-eabi --with-newlib
--with-cpu=603e --enable-cxx-flags=-mcpu=603e --disable-multilib --with-dwarf2
--enable-libstdcxx-debug --disable-c-mbchar --disable-nls --disable-threads
--enable-symvers=gnu --enable-__cxa_atexit --enable-languages=c,c++
--disable-shared --enable-c99 --enable-long-long --with-dwarf2
Thread model: single
gcc version 4.0.2

/c/gcc/powerpc-603e-eabi/bin/../libexec/gcc/powerpc-603e-eabi/4.0.2/cc1plus.exe
-quiet -v -iprefix
/c/gcc/powerpc-603e-eabi/bin/../lib/gcc/powerpc-603e-eabi/4.0.2/ gccbug.cpp
-quiet -dumpbase gccbug.cpp -mcpu=603e -auxbase gccbug -O2 -version -o
/c/DOCUME~1/djohnson/LOCALS~1/Temp/cckcPKQy.s

The exact code that generates this error is:
------------------
// Compile with -O2.
// compiler error goes away if "-fno-tree-ccp" is added

typedef unsigned long uint32_t;

// compiler error goes away if "const" is removed
typedef volatile uint32_t* const hwreg_t;

struct RegisterLayout
{
    uint32_t intmask;
};

struct Controller_t
{
public:
    Controller_t();

    inline void
    disableInterrupt()
    {
        *mpMaskRegister = 0;
    };

    static hwreg_t mpMaskRegister;
};

extern char SimulatedRegisters[];

// compiler error goes away if "volatile" is remove
#define MACHINE                                                         \
    (reinterpret_cast<volatile RegisterLayout*>(SimulatedRegisters))

hwreg_t Controller_t::mpMaskRegister = &MACHINE->intmask;

Controller_t::Controller_t()
{      
    disableInterrupt();
}


-- 
           Summary: internal compiler error: get_indirect_ref_operands
           Product: gcc
           Version: 4.0.2
            Status: UNCONFIRMED
          Severity: normal
          Priority: P3
         Component: tree-optimization
        AssignedTo: unassigned at gcc dot gnu dot org
        ReportedBy: darin at usa dot net
  GCC host triplet: CYGWIN_NT-5.0
GCC target triplet: powerpc-603e-eabi


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=24665