R600/SI: fix stupid typo

This is a candidate for the mesa-stable branch.

Signed-off-by: Christian König <christian.koenig@amd.com>
Reviewed-by: Tom Stellard <thomas.stellard@amd.com>
llvm-svn: 176097
diff --git a/llvm/lib/Target/R600/MCTargetDesc/SIMCCodeEmitter.cpp b/llvm/lib/Target/R600/MCTargetDesc/SIMCCodeEmitter.cpp
index 2bf8fb8..6cc0077 100644
--- a/llvm/lib/Target/R600/MCTargetDesc/SIMCCodeEmitter.cpp
+++ b/llvm/lib/Target/R600/MCTargetDesc/SIMCCodeEmitter.cpp
@@ -131,7 +131,7 @@
   if (Imm.F == 4.0f)
     return 246;
 
-  if (Imm.F == 4.0f)
+  if (Imm.F == -4.0f)
     return 247;
 
   return 255;