[llvm] r289265 - Add README describing the intention of test/CodeGen/MIR

[Matthias Braun via llvm-commits]

Author: matze
Date: Fri Dec  9 14:16:12 2016
New Revision: 289265

URL: http://llvm.org/viewvc/llvm-project?rev=289265&view=rev
Log:
Add README describing the intention of test/CodeGen/MIR

Added:
    llvm/trunk/test/CodeGen/MIR/README

Added: llvm/trunk/test/CodeGen/MIR/README
URL: http://llvm.org/viewvc/llvm-project/llvm/trunk/test/CodeGen/MIR/README?rev=289265&view=auto
==============================================================================
--- llvm/trunk/test/CodeGen/MIR/README (added)
+++ llvm/trunk/test/CodeGen/MIR/README Fri Dec  9 14:16:12 2016
@@ -0,0 +1,7 @@
+This directory contains tests for the MIR file format parser and printer. It
+was necessary to split the tests across different targets as no single target
+covers all features available in machine IR.
+
+Tests for codegen passes should NOT be here but in test/CodeGen/sometarget. As
+a rule of thumb this directory should only contain tests using
+'llc -run-pass none'.