mirror of
https://github.com/nArnoSNES/tcc-65816.git
synced 2024-06-12 13:29:29 +00:00
56 lines
852 B
C
56 lines
852 B
C
/* Two of these types will, on current gcc targets, have the same
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mode but have different alias sets. DOIT tries to get gcse to
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invalidly hoist one of the values out of the loop. */
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typedef int T0;
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typedef long T1;
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typedef long long T2;
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int
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doit(int sel, int n, void *p)
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{
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T0 * const p0 = p;
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T1 * const p1 = p;
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T2 * const p2 = p;
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switch (sel)
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{
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case 0:
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do
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*p0 += *p0;
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while (--n);
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return *p0 == 0;
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case 1:
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do
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*p1 += *p1;
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while (--n);
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return *p1 == 0;
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case 2:
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do
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*p2 += *p2;
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while (--n);
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return *p2 == 0;
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default:
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abort ();
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}
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}
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int
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main()
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{
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T0 v0; T1 v1; T2 v2;
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v0 = 1; doit(0, 5, &v0);
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v1 = 1; doit(1, 5, &v1);
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v2 = 1; doit(2, 5, &v2);
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if (v0 != 32) abort ();
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if (v1 != 32) abort ();
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if (v2 != 32) abort ();
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exit (0);
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}
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