Add support for the 'N' constraint.
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@48185 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/Basic/Targets.cpp b/Basic/Targets.cpp
index cede598..e8238da 100644
--- a/Basic/Targets.cpp
+++ b/Basic/Targets.cpp
@@ -486,7 +486,9 @@
case 't': // top of floating point stack.
case 'u': // second from top of floating point stack.
case 'q': // a, b, c, d registers or any integer register in 64-bit.
- case 'Z': // 32-bit integer constant for used with zero-extending x86_64
+ case 'Z': // 32-bit integer constant for use with zero-extending x86_64
+ // instructions.
+ case 'N': // unsigned 8-bit integer constant for use with in and out
// instructions.
info = (TargetInfo::ConstraintInfo)(info|TargetInfo::CI_AllowsRegister);
return true;