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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@27419 91177308-0d34-0410-b5e6-96231b3b80d8

lib/Target/PowerPC/README_ALTIVEC.txt

@@ -51,9 +51,7 @@ Missing intrinsics:
 
 ds*
 mf*
-vavg*
 vmladduhm
-vmr*
 vsel (some aliases only accessible using builtins)
 
 //===----------------------------------------------------------------------===//
@@ -154,3 +152,7 @@ void test(vector int *X, vector int *Y) {
 }
 
 //===----------------------------------------------------------------------===//
+
+Lower "merges" in the front-end to shuffles, reconstruct in the backend.
+
+//===----------------------------------------------------------------------===//