[ms-inline asm] Hoist more common code into the AsmStmt base class. Add stubs

with FIXMEs for unimplemented features.  No functional change intended.

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@162716 91177308-0d34-0410-b5e6-96231b3b80d8

1 files changed, 25 insertions, 12 deletions

diff --git a/lib/AST/Stmt.cpp b/lib/AST/Stmt.cpp
index fc66202c4a..b7c2b39895 100644
--- a/lib/AST/Stmt.cpp
+++ b/lib/AST/Stmt.cpp
@@ -321,6 +321,16 @@ bool Stmt::hasImplicitControlFlow() const {
   }
 }
 
+/// getNumPlusOperands - Return the number of output operands that have a "+"
+/// constraint.
+unsigned AsmStmt::getNumPlusOperands() const {
+  unsigned Res = 0;
+  for (unsigned i = 0, e = getNumOutputs(); i != e; ++i)
+    if (isOutputPlusConstraint(i))
+      ++Res;
+  return Res;
+}
+
 StringRef GCCAsmStmt::getClobber(unsigned i) const {
   return getClobberStringLiteral(i)->getString();
 }
@@ -336,16 +346,6 @@ StringRef GCCAsmStmt::getOutputConstraint(unsigned i) const {
   return getOutputConstraintLiteral(i)->getString();
 }
 
-/// getNumPlusOperands - Return the number of output operands that have a "+"
-/// constraint.
-unsigned GCCAsmStmt::getNumPlusOperands() const {
-  unsigned Res = 0;
-  for (unsigned i = 0, e = getNumOutputs(); i != e; ++i)
-    if (isOutputPlusConstraint(i))
-      ++Res;
-  return Res;
-}
-
 Expr *GCCAsmStmt::getInputExpr(unsigned i) {
   return cast<Expr>(Exprs[i + NumOutputs]);
 }
@@ -353,14 +353,12 @@ void GCCAsmStmt::setInputExpr(unsigned i, Expr *E) {
   Exprs[i + NumOutputs] = E;
 }
 
-
 /// getInputConstraint - Return the specified input constraint.  Unlike output
 /// constraints, these can be empty.
 StringRef GCCAsmStmt::getInputConstraint(unsigned i) const {
   return getInputConstraintLiteral(i)->getString();
 }
 
-
 void GCCAsmStmt::setOutputsAndInputsAndClobbers(ASTContext &C,
                                              IdentifierInfo **Names,
                                              StringLiteral **Constraints,
@@ -584,6 +582,14 @@ Expr *MSAsmStmt::getOutputExpr(unsigned i) {
   return cast<Expr>(Exprs[i]);
 }
 
+/// getOutputConstraint - Return the constraint string for the specified
+/// output operand.  All output constraints are known to be non-empty (either
+/// '=' or '+').
+StringRef MSAsmStmt::getOutputConstraint(unsigned i) const {
+  // FIXME: Compute constraints.
+  return StringRef();
+}
+
 Expr *MSAsmStmt::getInputExpr(unsigned i) {
   return cast<Expr>(Exprs[i + NumOutputs]);
 }
@@ -591,6 +597,13 @@ void MSAsmStmt::setInputExpr(unsigned i, Expr *E) {
   Exprs[i + NumOutputs] = E;
 }
 
+/// getInputConstraint - Return the specified input constraint.  Unlike output
+/// constraints, these can be empty.
+StringRef MSAsmStmt::getInputConstraint(unsigned i) const {
+  // FIXME: Compute constraints.
+  return StringRef();
+}
+
 QualType CXXCatchStmt::getCaughtType() const {
   if (ExceptionDecl)
     return ExceptionDecl->getType();