Messages in this thread | | | Date | Tue, 22 Dec 2009 12:33:34 +0100 | From | Paolo Bonzini <> | Subject | Re: [PATCH] ARM: Convert BUG() to use unreachable() |
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On 12/17/2009 06:17 PM, Richard Guenther wrote: > It shouldn't as *(int *)0 = 0; might trap. But if you want to be sure > use > __builtin_trap (); > instead for the whole sequence (the unreachable is implied then). > GCC choses a size-optimal trap representation for your target then.
Agree that it shouldn't but just to be sure I'd use
*(volatile int *)0 = 0; unreachable ();
Paolo
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