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[/] [scarts/] [trunk/] [toolchain/] [scarts-gcc/] [gcc-4.1.1/] [gcc/] [testsuite/] [gcc.dg/] [20020219-1.c] - Blame information for rev 12

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1 12 jlechner
/* PR c/4389
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   This testcase failed because host_integerp (x, 0) was returning
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   1 even for constants bigger than 2^31.  It fails under under hppa
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   hpux without -mdisable-indexing because the pointer x - 1 is used
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   as the base address of an indexed load.  Because the struct A is not
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   actually allocated, x - 1 lies in the text segment and this causes
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   the wrong space register to be selected for the load.  It fails on
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   IA64 hpux in ILP32 mode because extending x - 1 before adding the
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   array offset gives a different answer then adding first and then
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   extending.  The underlying problem is the same as with hppa, x - 1 is
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   not a legal data address.  */
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/* { dg-do run } */
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/* { dg-options "-O2" } */
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/* { dg-options "-O2 -mdisable-indexing" { target hppa*-*-hpux* } } */
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/* { dg-skip-if "" { "ia64-*-hpux*" } "*" "-mlp64" } */
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/* Disable the test entirely for 16-bit targets.  */
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#if __INT_MAX__ > 32767
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extern void abort (void);
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extern void exit (int);
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struct A {
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  int a[10000][10000];
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};
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int b[2] = { 213151, 0 };
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void foo (struct A *x, int y)
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{
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  if (x->a[9999][9999] != x->a[y][y])
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    abort ();
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  if (x->a[9999][9999] != 213151)
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    abort ();
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}
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int main (void)
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{
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  struct A *x;
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  asm ("" : "=r" (x) : "0" (&b[1]));
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  foo (x - 1, 9999);
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  exit (0);
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}
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#else
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int main () { return 0; }
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#endif /* __INT_MAX__ */

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