R600/SI: Add intrinsics for brev instructions

llvm-svn: 211187
diff --git a/llvm/lib/Target/R600/AMDGPUISelLowering.h b/llvm/lib/Target/R600/AMDGPUISelLowering.h
index 34e36d8..5be3070 100644
--- a/llvm/lib/Target/R600/AMDGPUISelLowering.h
+++ b/llvm/lib/Target/R600/AMDGPUISelLowering.h
@@ -188,6 +188,7 @@
   BFE_I32, // Extract range of bits with sign extension to 32-bits.
   BFI, // (src0 & src1) | (~src0 & src2)
   BFM, // Insert a range of bits into a 32-bit word.
+  BREV, // Reverse bits.
   MUL_U24,
   MUL_I24,
   MAD_U24,