2 Commits

Author	SHA1	Message	Date
Michael Kuperstein	fe0d9bb6eb	[X86] Disable mul -> shl + lea combine when compiling for minsize ... Differential Revision: http://reviews.llvm.org/D11904 llvm-svn: 244740	2015-08-12 11:27:26 +00:00
Michael Kuperstein	951995821a	[X86] Reduce some 32-bit imuls into lea + shl ... Reduce integer multiplication by a constant of the form k*2^c, where k is in {3,5,9} into a lea + shl. Previously it was only done for imulq on 64-bit platforms, but it makes sense for imull and 32-bit as well. Differential Revision: http://reviews.llvm.org/D7196 llvm-svn: 227308	2015-01-28 14:08:22 +00:00