2 Commits

Author	SHA1	Message	Date
Craig Topper	2262613532	[X86] Remove isel patterns for ADCX instruction ... There's no advantage to this instruction unless you need to avoid touching other flag bits. It's encoding is longer, it can't fold an immediate, it doesn't write all the flags. I don't think gcc will generate this instruction either. Fixes PR38852. Differential Revision: https://reviews.llvm.org/D51754 llvm-svn: 342059	2018-09-12 15:47:34 +00:00
Craig Topper	72964ae99e	[X86] Change the addcarry and subborrow intrinsics to return 2 results and remove the pointer argument. ... We should represent the store directly in IR instead. This gives the middle end a chance to remove it if it can see a load from the same address. Differential Revision: https://reviews.llvm.org/D51769 llvm-svn: 341677	2018-09-07 16:58:39 +00:00