63c59f054a
When compiling an optabs.ii at -O2 with a release-checking build, there were 6,643,575 calls to gimple_outgoing_range_stmt_p. 96.8% of them were for blocks with a single successor, which never have a control statement that generates new range info. This patch therefore adds a shortcut for that case. This gives a ~1% compile-time improvement for the test. I tried making the function inline (in the header) so that the single_succ_p didn't need to be repeated, but it seemed to make things slightly worse. gcc/ * gimple-range-edge.cc (gimple_outgoing_range::edge_range_p): Add a shortcut for blocks with single successors. * gimple-range-gori.cc (gori_map::calculate_gori): Likewise. |
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| c++tools | ||
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