Remove the obsolete offset parameter from @llvm.dbg.value

There is no situation where this rarely-used argument cannot be
substituted with a DIExpression and removing it allows us to simplify
the DWARF backend. Note that this patch does not yet remove any of
the newly dead code.

rdar://problem/33580047
Differential Revision: https://reviews.llvm.org/D35951

llvm-svn: 309426

1 files changed, 5 insertions, 6 deletions

diff --git a/llvm/docs/SourceLevelDebugging.rst b/llvm/docs/SourceLevelDebugging.rst
index a9f5c3a0814..ee4c5ce8bce 100644
--- a/llvm/docs/SourceLevelDebugging.rst
+++ b/llvm/docs/SourceLevelDebugging.rst
@@ -207,14 +207,13 @@ description of the variable.  The third argument is a `complex expression
 
 .. code-block:: llvm
 
-  void @llvm.dbg.value(metadata, i64, metadata, metadata)
+  void @llvm.dbg.value(metadata, metadata, metadata)
 
 This intrinsic provides information when a user source variable is set to a new
-value.  The first argument is the new value (wrapped as metadata).  The second
-argument is the offset in the user source variable where the new value is
-written.  The third argument is a `local variable
-<LangRef.html#dilocalvariable>`_ containing a description of the variable.  The
-fourth argument is a `complex expression <LangRef.html#diexpression>`_.
+value.  The first argument is the new value (wrapped as metadata).  The third
+argument is a `local variable <LangRef.html#dilocalvariable>`_ containing a
+description of the variable.  The fourth argument is a `complex expression
+<LangRef.html#diexpression>`_.
 
 Object lifetimes and scoping
 ============================