Update SwiftShader to April code dump.

April code dump from Transgaming. Adds new shader compiler.
diff --git a/src/LLVM/utils/findmisopt b/src/LLVM/utils/findmisopt
index 817004d..60f223b 100644
--- a/src/LLVM/utils/findmisopt
+++ b/src/LLVM/utils/findmisopt
@@ -7,7 +7,7 @@
 #      it from finding a problem unless the set of failing optimizations are

 #      known and given to it on the command line.

 #

-#      Given a bytecode file that produces correct output (or return code), 

+#      Given a bitcode file that produces correct output (or return code), 

 #      this script will run through all the optimizations passes that gccas

 #      uses (in the same order) and will narrow down which optimizations

 #      cause the program either generate different output or return a 

@@ -21,7 +21,7 @@
 #

 #   Where:

 #      bcfile 

-#          is the bytecode file input (the unoptimized working case)

+#          is the bitcode file input (the unoptimized working case)

 #      outdir

 #          is a directory into which intermediate results are placed

 #      progargs