[WinEH] Add localaddress intrinsic instead of using frameaddress

Clang uses this for SEH finally. The new intrinsic will produce the
right value when stack realignment is required.

llvm-svn: 241643

1 files changed, 4 insertions, 4 deletions

diff --git a/llvm/docs/LangRef.rst b/llvm/docs/LangRef.rst
index 877aed2b541..2f8d6f5d5c5 100644
--- a/llvm/docs/LangRef.rst
+++ b/llvm/docs/LangRef.rst
@@ -7811,10 +7811,10 @@ bitcasted pointer to a function defined in the current module. The code
 generator cannot determine the frame allocation offset of functions defined in
 other modules.
 
-The ``fp`` argument to '``llvm.localrecover``' must be a frame
-pointer of a call frame that is currently live. The return value of
-'``llvm.frameaddress``' is one way to produce such a value, but most platforms
-also expose the frame pointer through stack unwinding mechanisms.
+The ``fp`` argument to '``llvm.localrecover``' must be a frame pointer of a
+call frame that is currently live. The return value of '``llvm.localaddress``'
+is one way to produce such a value, but various runtimes also expose a suitable
+pointer in platform-specific ways.
 
 The ``idx`` argument to '``llvm.localrecover``' indicates which alloca passed to
 '``llvm.localescape``' to recover. It is zero-indexed.