6 Commits

Author	SHA1	Message	Date
Chris Lattner	65c5243bd6	rename MVT::Flag to MVT::Glue. "Flag" is a terrible name for ... something that just glues two nodes together, even if it is sometimes used for flags. llvm-svn: 122310	2010-12-21 02:38:05 +00:00
Duncan Sands	1af5c00d3c	When passing a huge parameter using the byval mechanism, a long ... sequence of loads and stores was being generated to perform the copy on the x86 targets if the parameter was less than 4 byte aligned, causing llc to use up vast amounts of memory and time. Use a "rep movs" form instead. PR7170. llvm-svn: 118260	2010-11-04 21:16:46 +00:00
Chris Lattner	80d9e51351	Fix a bug where the x86 backend would lower memcpy/memset of segment relative operations ... into non-segment-relative copies. llvm-svn: 114402	2010-09-21 05:43:34 +00:00
Chris Lattner	f94de5bf46	reimplement memcpy/memmove/memset lowering to use MachinePointerInfo ... instead of srcvalue/offset pairs. This corrects SV info for mem operations whose size is > 32-bits. llvm-svn: 114401	2010-09-21 05:40:29 +00:00
Dan Gohman	fb6f4da0e0	Implement a bunch more TargetSelectionDAGInfo infrastructure. ... Move EmitTargetCodeForMemcpy, EmitTargetCodeForMemset, and EmitTargetCodeForMemmove out of TargetLowering and into SelectionDAGInfo to exercise this. llvm-svn: 103481	2010-05-11 17:31:57 +00:00
Dan Gohman	982923742d	Add skeleton target-specific SelectionDAGInfo files. ... llvm-svn: 101564	2010-04-16 23:04:22 +00:00