Commit Graph

4 Commits

Author SHA1 Message Date
Dan Bailey
84149460d5 PTX: Reverting implementation of i8.
The .b8 operations in PTX are far more limiting than I first thought. The mov operation isn't even supported, so there's no way of converting a .pred value into a .b8 without going via .b16, which is
not sensible. An improved implementation needs to use the fact that loads and stores automatically extend and truncate to implement support for EXTLOAD and TRUNCSTORE in order to correctly support
boolean values.



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@133873 91177308-0d34-0410-b5e6-96231b3b80d8
2011-06-25 18:16:28 +00:00
Dan Bailey
b05a8a8f02 PTX: Add support for i8 type and introduce associated .b8 registers
The i8 type is required for boolean values, but can only use ld, st and mov instructions. The i1 type continues to be used for predicates.



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@133814 91177308-0d34-0410-b5e6-96231b3b80d8
2011-06-24 19:27:10 +00:00
Justin Holewinski
d8149c1bef PTX: Always use registers for return values, but use .param space for device
parameters if SM >= 2.0

- Update test cases to be more robust against register allocation changes
- Bump up the number of registers to 128 per type
- Include Python script to re-generate register file with any number of
  registers

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@133736 91177308-0d34-0410-b5e6-96231b3b80d8
2011-06-23 18:10:13 +00:00
Justin Holewinski
e0aef2de81 PTX: Finish new calling convention implementation
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@133172 91177308-0d34-0410-b5e6-96231b3b80d8
2011-06-16 17:50:00 +00:00