On 25 March 2013 12:05, Pinski, Andrew <andrew.pin...@caviumnetworks.com> wrote: >>* Investigate how to expand conditional compare GIMPLE to RTL and emit asm. > > I think maybe we should start adding target specific expanders. Then all you > need to do is take that expander and when you get a COND_EXPR and then looks > at TRE provided information which then can exapnd the conditional compare > without adding a new tree code. Note I think this should be discussed on the > GCC list directly anyways rather than on the linaro form because it is more > likely be accepted if talked about there.
Thanks for the comments. The "conditional compare" mentioned here is a different from COND_EXPR. If my understanding is correct, COND_EXPR is for "c1? v1: v2" "conditional compare" here is to represent the second operand of short-circuit, e.g. TRUTH_ANDIF_EXPR. It is more like "c1? CMP (v1, v2): c1" It is just a CMP (GT, NE, etc)_EXPR if ignoring the "conditional" part. Agree with you, we should discuss it on GCC list. But before that, I want a prototype and estimate the efforts. Thanks! -Zhenqiang _______________________________________________ linaro-toolchain mailing list linaro-toolchain@lists.linaro.org http://lists.linaro.org/mailman/listinfo/linaro-toolchain
