maxjhandsome
/
llvm-project
forked from OSchip/llvm-project
1
0
Fork 0
Code Issues Pull Requests Packages Releases Wiki Activity
251,541 Commits 23 Branches 0 Tags 2.2 GiB
Commit Graph

2 Commits

Author SHA1 Message Date
Hans Wennborg c39ef776fc Win64: Don't use REX prefix for direct tail calls 
The REX prefix should be used on indirect jmps, but not direct ones.
For direct jumps, the unwinder looks at the offset to determine if
it's inside the current function.

Differential Revision: https://reviews.llvm.org/D24359

llvm-svn: 281003
 2016-09-08 23:35:10 +00:00
Andy Ayers 9f7501896e findDeadCallerSavedReg needs to pay attention to calling convention 
Caller saved regs differ between SysV and Win64. Use the tail call available set to scavenge from.

Refactor register info to create new helper to get at tail call GPRs. Added a new test case for windows. Fixed up a number of X64 tests since now RCX is preferred over RDX on SysV.

Differential Revision: http://reviews.llvm.org/D14878

llvm-svn: 253927
 2015-11-23 22:17:44 +00:00