Dan Gohman a589ee11bb Don't mark scalar integer multiplication as Expand on x86, since x86 ... has plain one-result scalar integer multiplication instructions. This avoids expanding such instructions into MUL_LOHI sequences that must be special-cased at isel time, and avoids the problem with that code that provented memory operands from being folded. This fixes PR1874, addressesing the most common case. The uncommon cases of optimizing multiply-high operations will require work in DAGCombiner. llvm-svn: 47277		2008-02-18 17:55:26 +00:00
clang	Add more supported constraints.	2008-02-18 17:00:25 +00:00
llvm	Don't mark scalar integer multiplication as Expand on x86, since x86	2008-02-18 17:55:26 +00:00