Add 'x' constraint character.
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@57198 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/lib/Basic/Targets.cpp b/lib/Basic/Targets.cpp
index 78a43d9..531d052 100644
--- a/lib/Basic/Targets.cpp
+++ b/lib/Basic/Targets.cpp
@@ -438,6 +438,7 @@
case 'u': // second from top of floating point stack.
case 'q': // Any register accessible as [r]l: a, b, c, and d.
case 'y': // Any MMX register.
+ case 'x': // Any SSE register.
case 'Q': // Any register accessible as [r]h: a, b, c, and d.
case 'Z': // 32-bit integer constant for use with zero-extending x86_64
// instructions.