document thiscall, PR9101

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@131873 91177308-0d34-0410-b5e6-96231b3b80d8

diff --git a/docs/CodeGenerator.html b/docs/CodeGenerator.html
index 60f42607f07be64fab614a391caf93329377952c..44b835d8580c0da77277f04356bafbf00a3bf14c 100644 (file)
--- a/docs/CodeGenerator.html
+++ b/docs/CodeGenerator.html
@@ -2469,11 +2469,14 @@ entry:
 <p>The following target-specific calling conventions are known to backend:</p>
 
 <ul>
-  <li><b>x86_StdCall</b> &mdash; stdcall calling convention seen on Microsoft
-      Windows platform (CC ID = 64).</li>
-
-  <li><b>x86_FastCall</b> &mdash; fastcall calling convention seen on Microsoft
-      Windows platform (CC ID = 65).</li>
+<li><b>x86_StdCall</b> &mdash; stdcall calling convention seen on Microsoft
+    Windows platform (CC ID = 64).</li>
+<li><b>x86_FastCall</b> &mdash; fastcall calling convention seen on Microsoft
+    Windows platform (CC ID = 65).</li>
+<li><b>x86_ThisCall</b> &mdash; Similar to X86_StdCall. Passes first argument
+    in ECX,  others via stack. Callee is responsible for stack cleaning. This
+    convention is used by MSVC by default for methods in its ABI
+    (CC ID = 70).</li>
 </ul>
 
 </div>