Denys Vlasenko wrote:
On Wednesday 07 July 2010 12:58, Maksym Kryzhanovskyy wrote:
Hi Denis,
can we use the __builtin_expect function in busybox?
- if (!G.detect_link_func) {
+ if (__builtin_expect(G.detect_link_func == NULL, 0)) {
I don't see any changes in size, only obfuscated code.
I think the main point of __builtin_expect is to make the code faster by
telling the compiler which branch is more likely, not to make the
assembly code smaller or easier to read.
Actually I would expect the above sequence to require an extra jump,
making the code bigger.
Ralf
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