IR: Slightly more verbose error in Verifier

Extend the error message generated by the Verifier when an intrinsic
name does not match the expected mangling to include the expected
name.  Simplifies debugging.

Patch by Philip Reames!

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@203490 91177308-0d34-0410-b5e6-96231b3b80d8

diff --git a/lib/IR/Verifier.cpp b/lib/IR/Verifier.cpp
index f49cca5a3e3d030b941083f8ea182e0316f7ec23..158601226ab346a4eb588be69a47d63594caf287 100644 (file)
--- a/lib/IR/Verifier.cpp
+++ b/lib/IR/Verifier.cpp
@@ -2239,8 +2239,10 @@ void Verifier::visitIntrinsicFunctionCall(Intrinsic::ID ID, CallInst &CI) {
   // know they are legal for the intrinsic!) get the intrinsic name through the
   // usual means.  This allows us to verify the mangling of argument types into
   // the name.
-  Assert1(Intrinsic::getName(ID, ArgTys) == IF->getName(),
-          "Intrinsic name not mangled correctly for type arguments!", IF);
+  const std::string ExpectedName = Intrinsic::getName(ID, ArgTys);
+  Assert1(ExpectedName == IF->getName(),
+          "Intrinsic name not mangled correctly for type arguments! "
+          "Should be: " + ExpectedName, IF);
 
   // If the intrinsic takes MDNode arguments, verify that they are either global
   // or are local to *this* function.