X-Git-Url: http://plrg.eecs.uci.edu/git/?a=blobdiff_plain;f=docs%2FStackMaps.rst;h=43c60c9e7850dbeba38a33bc313cf5adb3891f4e;hb=528a204ab98445917576e6bb74136b5c34b94a7f;hp=bd0fb946f9a50ea1bd5f4674aabe498ef24d7999;hpb=ea55eceaedfe386ec427d0ea2bb4025136c24ffa;p=oota-llvm.git

diff --git a/docs/StackMaps.rst b/docs/StackMaps.rst
index bd0fb946f9a..43c60c9e785 100644
--- a/docs/StackMaps.rst
+++ b/docs/StackMaps.rst
@@ -221,6 +221,13 @@ lowered according to the calling convention specified at the
 intrinsic's callsite. Variants of the intrinsic with non-void return
 type also return a value according to calling convention.
 
+On PowerPC, note that ``<target>`` must be the actual intended target of
+the indirect call. Specifically, even when compiling for the ELF V1 ABI,
+``<target>`` is not the function-descriptor address normally used as the C/C++
+function-pointer representation. As a result, the call target must be local
+because no adjustment or restoration of the TOC pointer (in register r2) will
+be performed.
+
 Requesting zero patch point arguments is valid. In this case, all
 variable operands are handled just like
 ``llvm.experimental.stackmap.*``. The difference is that space will