[llvm] 9aa0173 - [Hexagon] Add setting hvx-qfloat in HexagonMCSubtargetInfo

[Krzysztof Parzyszek via llvm-commits]

Author: Joshua Herrera
Date: 2022-01-05T07:54:33-08:00
New Revision: 9aa017342c8fa21ed0681fe16926b104de0af592

URL: https://github.com/llvm/llvm-project/commit/9aa017342c8fa21ed0681fe16926b104de0af592
DIFF: https://github.com/llvm/llvm-project/commit/9aa017342c8fa21ed0681fe16926b104de0af592.diff

LOG: [Hexagon] Add setting hvx-qfloat in HexagonMCSubtargetInfo

Added: 
    

Modified: 
    llvm/lib/Target/Hexagon/MCTargetDesc/HexagonMCTargetDesc.cpp

Removed: 
    


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diff  --git a/llvm/lib/Target/Hexagon/MCTargetDesc/HexagonMCTargetDesc.cpp b/llvm/lib/Target/Hexagon/MCTargetDesc/HexagonMCTargetDesc.cpp
index dfdddb50657c2..fd85e1efef36a 100644
--- a/llvm/lib/Target/Hexagon/MCTargetDesc/HexagonMCTargetDesc.cpp
+++ b/llvm/lib/Target/Hexagon/MCTargetDesc/HexagonMCTargetDesc.cpp
@@ -517,6 +517,14 @@ MCSubtargetInfo *Hexagon_MC::createHexagonMCSubtargetInfo(const Triple &TT,
     return nullptr;
   }
 
+  // Add qfloat subtarget feature by default to v68 and above
+  // unless explicitely disabled
+  if (checkFeature(X, Hexagon::ExtensionHVXV68) &&
+      ArchFS.find("-hvx-qfloat", 0) == std::string::npos) {
+    llvm::FeatureBitset Features = X->getFeatureBits();
+    X->setFeatureBits(Features.set(Hexagon::ExtensionHVXQFloat));
+  }
+
   if (HexagonDisableDuplex) {
     llvm::FeatureBitset Features = X->getFeatureBits();
     X->setFeatureBits(Features.reset(Hexagon::FeatureDuplex));