llvm-project

Commit Graph

Author	SHA1	Message	Date
Evan Cheng	ef0b7cc2d5	On x86, if the only use of a i64 load is a i64 store, generate a pair of double load and store instead. llvm-svn: 66776	2009-03-12 05:59:15 +00:00
Chris Lattner	ab8bfc28c8	copy mmx values from/to memory with GPRs on x86-32 instead of with mmx registers. This horribleness is apparently done by gcc to avoid having to insert emms in places that really should have it. This is the second half of rdar://5741668. llvm-svn: 47474	2008-02-22 05:18:04 +00:00
Chris Lattner	997b3a65ca	Start using GPR's to copy around mmx value instead of mmx regs. GCC apparently does this, and code depends on not having to do emms when this happens. This is x86-64 only so far, second half should handle x86-32. rdar://5741668 llvm-svn: 47470	2008-02-22 02:09:43 +00:00

Author

SHA1

Message

Date

Evan Cheng

ef0b7cc2d5

On x86, if the only use of a i64 load is a i64 store, generate a pair of double load and store instead.

llvm-svn: 66776

2009-03-12 05:59:15 +00:00

Chris Lattner

ab8bfc28c8

copy mmx values from/to memory with GPRs on x86-32

instead of with mmx registers.  This horribleness is apparently
done by gcc to avoid having to insert emms in places that really 
should have it.  This is the second half of rdar://5741668.

llvm-svn: 47474

2008-02-22 05:18:04 +00:00

Chris Lattner

997b3a65ca

Start using GPR's to copy around mmx value instead of mmx regs.

GCC apparently does this, and code depends on not having to do
emms when this happens.  This is x86-64 only so far, second half
should handle x86-32.

rdar://5741668

llvm-svn: 47470

2008-02-22 02:09:43 +00:00

3 Commits