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45 lines
666 B
45 lines
666 B
4 years ago
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#include <stdio.h>
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/*-
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* This is a cc optimiser bug for ultrix 4.3, mips CPU.
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* What happens is that the compiler, due to the (a)&7,
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* does
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* i=a&7;
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* i--;
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* i*=4;
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* Then uses i as the offset into a jump table.
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* The problem is that a value of 0 generates an offset of
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* 0xfffffffc.
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*/
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main()
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{
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f(5);
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f(0);
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}
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int f(a)
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int a;
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{
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switch (a & 7) {
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case 7:
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printf("7\n");
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case 6:
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printf("6\n");
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case 5:
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printf("5\n");
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case 4:
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printf("4\n");
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case 3:
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printf("3\n");
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case 2:
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printf("2\n");
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case 1:
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printf("1\n");
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#ifdef FIX_BUG
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case 0:
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;
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#endif
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}
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}
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