5 Commits

Author	SHA1	Message	Date
Dale Johannesen	dd224d2333	Massive rewrite of MMX: ... The x86_mmx type is used for MMX intrinsics, parameters and return values where these use MMX registers, and is also supported in load, store, and bitcast. Only the above operations generate MMX instructions, and optimizations do not operate on or produce MMX intrinsics. MMX-sized vectors <2 x i32> etc. are lowered to XMM or split into smaller pieces. Optimizations may occur on these forms and the result casted back to x86_mmx, provided the result feeds into a previous existing x86_mmx operation. The point of all this is prevent optimizations from introducing MMX operations, which is unsafe due to the EMMS problem. llvm-svn: 115243	2010-09-30 23:57:10 +00:00
Dan Gohman	40503396da	Eliminate more uses of llvm-as and llvm-dis. ... llvm-svn: 81290	2009-09-08 23:54:48 +00:00
Rafael Espindola	70e9816624	Use movd instead of movq ... llvm-svn: 77956	2009-08-03 05:21:05 +00:00
Rafael Espindola	18ba271a79	Use movq to move 64 bits in and out of mmx registers. ... Fixes PR4669 llvm-svn: 77940	2009-08-03 02:45:34 +00:00
Dan Gohman	01a5d36d9d	Add movd instructions to move from MMX registers ... to 64-bit GPR registers on x86-64. llvm-svn: 49757	2008-04-15 23:55:07 +00:00