Messages in this thread | | | Subject | Re: [PATCH] TRACING: Fix a copmile warning | From | Steven Rostedt <> | Date | Mon, 25 Jul 2011 21:12:46 -0400 |
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On Mon, 2011-07-25 at 21:08 -0400, Arnaud Lacombe wrote: > Hi, >
> but the code generated seem to test %esi (`b', potentially > uninitialized) before %ebx (`a'). Am I still missing something ?
But it tests 'a' again afterward. If 'a' is 0, it doesn't matter what 'b' was. So the uninitialized test is a wash. No harm done, except for some wasted CPU cycles.
-- Steve
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