Revert r166647 to rethink the patch...

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@166655 91177308-0d34-0410-b5e6-96231b3b80d8

2 files changed, 0 insertions, 71 deletions

diff --git a/lib/Basic/Targets.cpp b/lib/Basic/Targets.cpp
index 960a2858e4..ba96185f72 100644
--- a/lib/Basic/Targets.cpp
+++ b/lib/Basic/Targets.cpp
@@ -3315,29 +3315,6 @@ public:
     }
     return R;
   }
-  virtual bool validateConstraintModifier(StringRef Constraint,
-                                          const char Modifier,
-                                          unsigned Size) const {
-    // Strip off constraint modifiers.
-    while (Constraint[0] == '=' ||
-           Constraint[0] == '+' ||
-           Constraint[0] == '&')
-      Constraint = Constraint.substr(1);
-
-    switch (Constraint[0]) {
-    default: break;
-    case 'r': {
-      switch (Modifier) {
-      default: return Size == 32;
-      case 'q':
-        // A register of size 32 cannot fit a vector type.
-        return false;
-      }
-    }
-    }
-
-    return true;
-  }
   virtual const char *getClobbers() const {
     // FIXME: Is this really right?
     return "";
diff --git a/lib/Sema/SemaStmtAsm.cpp b/lib/Sema/SemaStmtAsm.cpp
index 138d671470..3a5f40c74f 100644
--- a/lib/Sema/SemaStmtAsm.cpp
+++ b/lib/Sema/SemaStmtAsm.cpp
@@ -208,54 +208,6 @@ StmtResult Sema::ActOnGCCAsmStmt(SourceLocation AsmLoc, bool IsSimple,
     return StmtError();
   }
 
-  // Validate constraints and modifiers.
-  for (unsigned i = 0, e = Pieces.size(); i != e; ++i) {
-    GCCAsmStmt::AsmStringPiece &Piece = Pieces[i];
-    if (!Piece.isOperand()) continue;
-
-    // Look for the correct constraint index.
-    unsigned Idx = 0;
-    unsigned ConstraintIdx = 0;
-    for (unsigned i = 0, e = NS->getNumOutputs(); i != e; ++i, ++ConstraintIdx) {
-      TargetInfo::ConstraintInfo &Info = OutputConstraintInfos[i];
-      if (Idx == Piece.getOperandNo())
-        break;
-      ++Idx;
-
-      if (Info.isReadWrite()) {
-        if (Idx == Piece.getOperandNo())
-          break;
-        ++Idx;
-      }
-    }
-
-    for (unsigned i = 0, e = NS->getNumInputs(); i != e; ++i, ++ConstraintIdx) {
-      TargetInfo::ConstraintInfo &Info = InputConstraintInfos[i];
-      if (Idx == Piece.getOperandNo())
-        break;
-      ++Idx;
-
-      if (Info.isReadWrite()) {
-        if (Idx == Piece.getOperandNo())
-          break;
-        ++Idx;
-      }
-    }
-    
-    // Now that we have the right indexes go ahead and check.
-    StringLiteral *Literal = Constraints[ConstraintIdx];
-    const Type *Ty = Exprs[ConstraintIdx]->getType().getTypePtr();
-    if (Ty->isDependentType() || Ty->isIncompleteType())
-      continue;
-
-    unsigned Size = Context.getTypeSize(Ty);
-    if (!Context.getTargetInfo()
-        .validateConstraintModifier(Literal->getString(),
-                                    Piece.getModifier(), Size))
-      Diag(Exprs[ConstraintIdx]->getLocStart(),
-           diag::warn_mismatched_size_modifier);
-  }
-
   // Validate tied input operands for type mismatches.
   for (unsigned i = 0, e = InputConstraintInfos.size(); i != e; ++i) {
     TargetInfo::ConstraintInfo &Info = InputConstraintInfos[i];