3 Commits

Author	SHA1	Message	Date
Bill Wendling	410ec4aad1	As Dan pointed out, movzbl, movsbl, and friends are nicer than their alias ... (movzx/movsx) because they give more information. Revert that part of the patch. llvm-svn: 129498	2011-04-14 01:46:37 +00:00
Bill Wendling	7e07d6fb69	Have the X86 back-end emit the alias instead of what's being aliased. In most ... cases, it's much nicer and more informative reading the alias. llvm-svn: 129497	2011-04-14 01:11:51 +00:00
Dan Gohman	d83e3e7750	Fix SimplifyDemandedBits' AssertZext logic to demand all the bits. It ... needs to demand the high bits because it's asserting that they're zero. llvm-svn: 105406	2010-06-03 20:21:33 +00:00