[NFC] fix trivial typos in documents and comments
"is is" -> "is", "if if" -> "if", "or or" -> "or"
llvm-svn: 329878
diff --git a/llvm/docs/ExceptionHandling.rst b/llvm/docs/ExceptionHandling.rst
index e65c1be..18ff53c 100644
--- a/llvm/docs/ExceptionHandling.rst
+++ b/llvm/docs/ExceptionHandling.rst
@@ -365,7 +365,7 @@
When used in the native Windows C++ exception handling implementation, this
intrinsic serves as a placeholder to delimit code before a catch handler is
-outlined. When the handler is is outlined, this intrinsic will be replaced
+outlined. When the handler is outlined, this intrinsic will be replaced
by instructions that retrieve the exception object pointer from the frame
allocation block.