Add more supported constraints.

llvm-svn: 47270

2 files changed, 3 insertions, 0 deletions

diff --git a/clang/Basic/TargetInfo.cpp b/clang/Basic/TargetInfo.cpp
index f0aecb1e08a..6b600a43a9b 100644
--- a/clang/Basic/TargetInfo.cpp
+++ b/clang/Basic/TargetInfo.cpp
@@ -435,6 +435,7 @@ bool TargetInfo::validateInputConstraint(const char *Name,
       // FIXME: Fail if % is used with the last operand.
       break;
     case 'i': // immediate integer.
+    case 'I':
       break;
     case 'r': // general register.
       info = (ConstraintInfo)(info|CI_AllowsRegister);
diff --git a/clang/Basic/Targets.cpp b/clang/Basic/Targets.cpp
index afe6e74f666..fec84998661 100644
--- a/clang/Basic/Targets.cpp
+++ b/clang/Basic/Targets.cpp
@@ -461,6 +461,8 @@ namespace X86 {
     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
+              // instructions.
       info = (TargetInfo::ConstraintInfo)(info|TargetInfo::CI_AllowsRegister);
       return true;
     }