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Gcc 3.x regression in constant initializer [compile/20010327-1.c]


Hi!

I've found a regression in 3.1 compared to gcc 2.95.  The following code:

extern void _text;
static unsigned int x = (unsigned int) &_text - 0x10000000L - 1;
static int x1 = (int) &_text - 0x10000000L - 1;
static long x2 = (long) &_text - 0x10000000L - 1;
static __SIZE_TYPE__ x3 = (__SIZE_TYPE__) &_text - 0x10000000L - 1;

compiles correctly with GCC 2.95.3 on i386.  It fails with 3.1 and
also with a `gcc version 2.96 20000731 (Red Hat Linux 7.1 2.96-81)'.

The following initialization:

static unsigned int x = (unsigned int) &_text - 0x10000000L - 1;

was working with 2.95 and it fails now with:

/tmp/bug-1.c:2: initializer element is not computable at load time


This problem is now in evidence after I integrated:

2001-11-01  Stephane Carrez  <Stephane.Carrez@worldnet.fr>

       * gcc.c-torture/compile/20010327-1.c: Use __SIZE_TYPE__ instead
        of unsigned long.

and it explains the failure for compile/20010327-1.c on i386 and ppc-eabisim
(at least).

Until a fix is found, I suggest to keep my patch, even if it introduces new
failures in native and ppc-eabisim validation. OK?

	Stephane


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