Chris Lattner c3a439351c optimize "p != gep p, ..." better. This allows us to compile ... getelementptr-seteq.ll into: define i1 @test(i64 %X, %S* %P) { %C = icmp eq i64 %X, -1 ; <i1> [#uses=1] ret i1 %C } instead of: define i1 @test(i64 %X, %S* %P) { %A.idx.mask = and i64 %X, 4611686018427387903 ; <i64> [#uses=1] %C = icmp eq i64 %A.idx.mask, 4611686018427387903 ; <i1> [#uses=1] ret i1 %C } And fixes the second half of PR2235. This speeds up the insertion sort case by 45%, from 1.12s to 0.77s. In practice, this will significantly speed up for loops structured like: for (double *P = Base + N; P != Base; --P) ... Which happens frequently for C++ iterators. llvm-svn: 50079		2008-04-22 02:53:33 +00:00
clang	Allow property in base class to be implemented in a	2008-04-21 23:57:08 +00:00
llvm	optimize "p != gep p, ..." better. This allows us to compile	2008-04-22 02:53:33 +00:00