[Beignet] [PATCH] correct env var to output llvm IR

[Guo Yejun]

Signed-off-by: Guo Yejun <yejun.guo at intel.com>
---
 docs/Beignet/Backend.mdwn | 8 +++++---
 1 file changed, 5 insertions(+), 3 deletions(-)

diff --git a/docs/Beignet/Backend.mdwn b/docs/Beignet/Backend.mdwn
index e4259fb..cf80318 100644
--- a/docs/Beignet/Backend.mdwn
+++ b/docs/Beignet/Backend.mdwn
@@ -48,10 +48,12 @@ Environment variables are used all over the code. Most important ones are:
 - `OCL_OUTPUT_GEN_IR` `(0 or 1)`. Output Gen IR (scalar intermediate
   representation) code
 
-- `OCL_OUTPUT_LLVM` `(0 or 1)`. Output LLVM code after the lowering passes
+- `OCL_OUTPUT_LLVM_BEFORE_LINK` `(0 or 1)`. Output LLVM code before llvm link
 
-- `OCL_OUTPUT_LLVM_BEFORE_EXTRA_PASS` `(0 or 1)`. Output LLVM code before the
-  lowering passes
+- `OCL_OUTPUT_LLVM_AFTER_LINK` `(0 or 1)`. Output LLVM code after llvm link
+
+- `OCL_OUTPUT_LLVM_AFTER_GEN` `(0 or 1)`. Output LLVM code after the lowering
+  passes, Gen IR is generated based on it.
 
 - `OCL_OUTPUT_ASM` `(0 or 1)`. Output Gen ISA
 
-- 
1.9.1