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3 Commits

Author SHA1 Message Date
Tom Stellard 0ffdf65eaa Revert "AMDGPU/SI: Do not generate s_waitcnt after ds_permute/ds_bpermute" 
This reverts commit r263720.

Just confirmed that s_waitcnt is required after ds_permute/ds_bpermute.

llvm-svn: 265992
 2016-04-11 20:38:40 +00:00
Changpeng Fang 234fcb81d3 AMDGPU/SI: Do not generate s_waitcnt after ds_permute/ds_bpermute 
Symmary:
  ds_permute/ds_bpermute do not read memory so s_waitcnt is not needed.

Reviewers
  arsenm, tstellarAMD

Subscribers
  llvm-commits, arsenm

Differential Revision:
  http://reviews.llvm.org/D18197

llvm-svn: 263720
 2016-03-17 16:43:50 +00:00
Changpeng Fang 24f035af32 AMDGPU/SI: Implement DS_PERMUTE/DS_BPERMUTE Instruction Definitions and Intrinsics 
Summary:
  This patch impleemnts DS_PERMUTE/DS_BPERMUTE instruction definitions and intrinsics,
which are new since VI.

Reviewers: tstellarAMD, arsenm

Subscribers: llvm-commits, arsenm

Differential Revision: http://reviews.llvm.org/D17614

llvm-svn: 262356
 2016-03-01 17:51:23 +00:00