1 files changed, 11 insertions, 0 deletions
diff --git a/lib/Target/AMDGPU/Utils/AMDGPUBaseInfo.cpp b/lib/Target/AMDGPU/Utils/AMDGPUBaseInfo.cpp
index 2abd4afad3b6c..630f469eabf05 100644
--- a/lib/Target/AMDGPU/Utils/AMDGPUBaseInfo.cpp
+++ b/lib/Target/AMDGPU/Utils/AMDGPUBaseInfo.cpp
@@ -544,6 +544,17 @@ bool isVI(const MCSubtargetInfo &STI) {
   return STI.getFeatureBits()[AMDGPU::FeatureVolcanicIslands];
 }
 
+bool isGFX9(const MCSubtargetInfo &STI) {
+  return STI.getFeatureBits()[AMDGPU::FeatureGFX9];
+}
+
+bool isSGPR(unsigned Reg, const MCRegisterInfo* TRI) {
+  const MCRegisterClass SGPRClass = TRI->getRegClass(AMDGPU::SReg_32RegClassID);
+  const unsigned FirstSubReg = TRI->getSubReg(Reg, 1);
+  return SGPRClass.contains(FirstSubReg != 0 ? FirstSubReg : Reg) ||
+    Reg == AMDGPU::SCC;
+}
+
 unsigned getMCReg(unsigned Reg, const MCSubtargetInfo &STI) {
 
   switch(Reg) {