82 lines
1.2 KiB
C
82 lines
1.2 KiB
C
/* { dg-do run } */
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/* { dg-additional-options "-mno-speculate-indirect-jumps" } */
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/* { dg-warning "'-mno-speculate-indirect-jumps' is deprecated" "" { target *-*-* } 0 } */
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/* Test for deliberate misprediction of jump tables. */
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void __attribute__((noinline)) bar ()
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{
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}
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int foo (int x)
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{
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int a;
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switch (x)
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{
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default:
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a = -1;
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break;
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case 0:
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a = x * x + 3;
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break;
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case 1:
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a = x + 1;
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break;
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case 2:
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a = x + x;
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break;
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case 3:
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a = x << 3;
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break;
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case 4:
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a = x >> 1;
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break;
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case 5:
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a = x;
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break;
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case 6:
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a = 0;
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break;
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case 7:
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a = x * x + x;
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break;
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}
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bar();
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return a;
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}
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int main ()
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{
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if (foo (0) != 3)
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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) != 4)
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__builtin_abort ();
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if (foo (3) != 24)
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__builtin_abort ();
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if (foo (4) != 2)
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__builtin_abort ();
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if (foo (5) != 5)
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__builtin_abort ();
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if (foo (6) != 0)
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__builtin_abort ();
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if (foo (7) != 56)
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__builtin_abort ();
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if (foo (8) != -1)
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__builtin_abort ();
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return 0;
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}
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