maxjhandsome
/
llvm-project
forked from OSchip/llvm-project
1
0
Fork 0
Code Issues Pull Requests Packages Releases Wiki Activity
197,034 Commits 23 Branches 0 Tags 2.2 GiB
Commit Graph

2 Commits

Author SHA1 Message Date
Elena Demikhovsky 824eed70a6 Passing AVX 256-bit structures in Win64 was wrong. 
Fixed Win64 calling conventions.

llvm-svn: 149494
 2012-02-01 10:46:14 +00:00
Jakob Stoklund Olesen fc9dce25f7 Handle call-clobbered ymm registers on Win64. 
The Win64 calling convention has xmm6-15 as callee-saved while still
clobbering all ymm registers.

Add a YMM_HI_6_15 pseudo-register that aliases the clobbered part of the
ymm registers, and mark that as call-clobbered.  This allows live xmm
registers across calls.

This hack wouldn't be necessary with RegisterMask operands representing
the call clobbers, but they are not quite operational yet.

llvm-svn: 149088
 2012-01-26 22:59:28 +00:00