Add support for checking the select instruction

llvm-svn: 12325

1 files changed, 11 insertions, 0 deletions

diff --git a/llvm/lib/VMCore/Verifier.cpp b/llvm/lib/VMCore/Verifier.cpp
index bf530a4b1a9..dfac6b94cf3 100644
--- a/llvm/lib/VMCore/Verifier.cpp
+++ b/llvm/lib/VMCore/Verifier.cpp
@@ -144,6 +144,7 @@ namespace {  // Anonymous namespace for class
     void visitInstruction(Instruction &I);
     void visitTerminatorInst(TerminatorInst &I);
     void visitReturnInst(ReturnInst &RI);
+    void visitSelectInst(SelectInst &SI);
     void visitUserOp1(Instruction &I);
     void visitUserOp2(Instruction &I) { visitUserOp1(I); }
     void visitIntrinsicFunctionCall(Intrinsic::ID ID, CallInst &CI);
@@ -335,6 +336,16 @@ void Verifier::visitReturnInst(ReturnInst &RI) {
   visitTerminatorInst(RI);
 }
 
+void Verifier::visitSelectInst(SelectInst &SI) {
+  Assert1(SI.getCondition()->getType() == Type::BoolTy,
+          "Select condition type must be bool!", &SI);
+  Assert1(SI.getTrueValue()->getType() == SI.getFalseValue()->getType(),
+          "Select values must have identical types!", &SI);
+  Assert1(SI.getTrueValue()->getType() == SI.getType(),
+          "Select values must have same type as select instruction!", &SI);
+}
+
+
 /// visitUserOp1 - User defined operators shouldn't live beyond the lifetime of
 /// a pass, if any exist, it's an error.
 ///