[PATCH] D21701: [AMDGPU] Fix warning

[Konstantin Zhuravlyov via llvm-commits]

kzhuravl created this revision.
kzhuravl added reviewers: tstellarAMD, arsenm.
kzhuravl added a subscriber: llvm-commits.
Herald added subscribers: kzhuravl, arsenm.

http://reviews.llvm.org/D21701

Files:
  lib/Target/AMDGPU/AMDGPUInstrInfo.cpp

Index: lib/Target/AMDGPU/AMDGPUInstrInfo.cpp
===================================================================
--- lib/Target/AMDGPU/AMDGPUInstrInfo.cpp
+++ lib/Target/AMDGPU/AMDGPUInstrInfo.cpp
@@ -144,6 +144,9 @@
 
 static SIEncodingFamily subtargetEncodingFamily(const AMDGPUSubtarget &ST) {
   switch (ST.getGeneration()) {
+  default:
+    llvm_unreachable("invalid generation");
+  // fall through
   case AMDGPUSubtarget::SOUTHERN_ISLANDS:
   case AMDGPUSubtarget::SEA_ISLANDS:
     return SIEncodingFamily::SI;


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