AMDGPU: Add llvm.amdgcn.ds.ordered.add & swap

Reviewers: arsenm, nhaehnle

Subscribers: kzhuravl, jvesely, wdng, yaxunl, dstuttard, tpr, t-tye, llvm-commits

Differential Revision: https://reviews.llvm.org/D52944

llvm-svn: 351351

1 files changed, 12 insertions, 1 deletions

diff --git a/llvm/lib/Target/AMDGPU/SIInstrInfo.cpp b/llvm/lib/Target/AMDGPU/SIInstrInfo.cpp
index 2370d5fa7b2..7f7f1807987 100644
--- a/llvm/lib/Target/AMDGPU/SIInstrInfo.cpp
+++ b/llvm/lib/Target/AMDGPU/SIInstrInfo.cpp
@@ -2390,6 +2390,16 @@ bool SIInstrInfo::isSchedulingBoundary(const MachineInstr &MI,
          changesVGPRIndexingMode(MI);
 }
 
+bool SIInstrInfo::isAlwaysGDS(uint16_t Opcode) const {
+  return Opcode == AMDGPU::DS_ORDERED_COUNT ||
+         Opcode == AMDGPU::DS_GWS_INIT ||
+         Opcode == AMDGPU::DS_GWS_SEMA_V ||
+         Opcode == AMDGPU::DS_GWS_SEMA_BR ||
+         Opcode == AMDGPU::DS_GWS_SEMA_P ||
+         Opcode == AMDGPU::DS_GWS_SEMA_RELEASE_ALL ||
+         Opcode == AMDGPU::DS_GWS_BARRIER;
+}
+
 bool SIInstrInfo::hasUnwantedEffectsWhenEXECEmpty(const MachineInstr &MI) const {
   unsigned Opcode = MI.getOpcode();
 
@@ -2403,7 +2413,8 @@ bool SIInstrInfo::hasUnwantedEffectsWhenEXECEmpty(const MachineInstr &MI) const
   //       EXEC = 0, but checking for that case here seems not worth it
   //       given the typical code patterns.
   if (Opcode == AMDGPU::S_SENDMSG || Opcode == AMDGPU::S_SENDMSGHALT ||
-      Opcode == AMDGPU::EXP || Opcode == AMDGPU::EXP_DONE)
+      Opcode == AMDGPU::EXP || Opcode == AMDGPU::EXP_DONE ||
+      Opcode == AMDGPU::DS_ORDERED_COUNT)
     return true;
 
   if (MI.isInlineAsm())