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48 lines
1.3 KiB
C
48 lines
1.3 KiB
C
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/* 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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