56 lines
784 B
C
56 lines
784 B
C
/* { dg-do run } */
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/* { dg-additional-options "-mno-speculate-indirect-jumps -Wno-pedantic" } */
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/* Test for deliberate misprediction of computed goto. */
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int __attribute__((noinline)) bar (int i)
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{
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return 1960 + i;
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}
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int __attribute__((noinline)) baz (int i)
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{
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return i * i;
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}
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int __attribute__((noinline)) spaz (int i)
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{
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return i + 1;
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}
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int foo (int x)
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{
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static void *labptr[] = { &&lab0, &&lab1, &&lab2 };
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if (x < 0 || x > 2)
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return -1;
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goto *labptr[x];
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lab0:
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return bar (x);
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lab1:
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return baz (x) + 1;
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lab2:
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return spaz (x) / 2;
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}
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int main ()
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{
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if (foo (0) != 1960)
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__builtin_abort ();
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if (foo (1) != 2)
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__builtin_abort ();
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if (foo (2) != 1)
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__builtin_abort ();
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if (foo (3) != -1)
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__builtin_abort ();
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return 0;
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}
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