[mips][msa] Summarize tests
Adds a comment to the start of each test summarizing the area the test covers.
llvm-svn: 189465
diff --git a/llvm/test/CodeGen/Mips/msa/3r-c.ll b/llvm/test/CodeGen/Mips/msa/3r-c.ll
index 5663694..0ad6afb 100644
--- a/llvm/test/CodeGen/Mips/msa/3r-c.ll
+++ b/llvm/test/CodeGen/Mips/msa/3r-c.ll
@@ -1,3 +1,6 @@
+; Test the MSA intrinsics that are encoded with the 3R instruction format.
+; There are lots of these so this covers those beginning with 'c'
+
; RUN: llc -march=mips -mattr=+msa < %s | FileCheck %s
@llvm_mips_ceq_b_ARG1 = global <16 x i8> <i8 0, i8 1, i8 2, i8 3, i8 4, i8 5, i8 6, i8 7, i8 8, i8 9, i8 10, i8 11, i8 12, i8 13, i8 14, i8 15>, align 16