[llvm] r318807 - [Hexagon] Add HexagonSubtarget::getVectorLength()

[Krzysztof Parzyszek via llvm-commits]

Author: kparzysz
Date: Tue Nov 21 14:13:16 2017
New Revision: 318807

URL: http://llvm.org/viewvc/llvm-project?rev=318807&view=rev
Log:
[Hexagon] Add HexagonSubtarget::getVectorLength()

Modified:
    llvm/trunk/lib/Target/Hexagon/HexagonSubtarget.h

Modified: llvm/trunk/lib/Target/Hexagon/HexagonSubtarget.h
URL: http://llvm.org/viewvc/llvm-project/llvm/trunk/lib/Target/Hexagon/HexagonSubtarget.h?rev=318807&r1=318806&r2=318807&view=diff
==============================================================================
--- llvm/trunk/lib/Target/Hexagon/HexagonSubtarget.h (original)
+++ llvm/trunk/lib/Target/Hexagon/HexagonSubtarget.h Tue Nov 21 14:13:16 2017
@@ -181,6 +181,15 @@ public:
   /// dependency.
   void adjustSchedDependency(SUnit *def, SUnit *use, SDep& dep) const override;
 
+  unsigned getVectorLength() const {
+    assert(useHVXOps());
+    if (useHVX64BOps())
+      return 64;
+    if (useHVX128BOps())
+      return 128;
+    llvm_unreachable("Invalid HVX vector length settings");
+  }
+
   unsigned getL1CacheLineSize() const;
   unsigned getL1PrefetchDistance() const;