From c97410eed21948f6ff1caa187e1ad4f924553733 Mon Sep 17 00:00:00 2001 From: Nadav Rotem Date: Tue, 23 Oct 2012 04:35:40 +0000 Subject: Add a comment which explains why the assert fired and how to fix it. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@166467 91177308-0d34-0410-b5e6-96231b3b80d8 --- lib/VMCore/TargetTransformInfo.cpp | 4 ++++ 1 file changed, 4 insertions(+) (limited to 'lib/VMCore') diff --git a/lib/VMCore/TargetTransformInfo.cpp b/lib/VMCore/TargetTransformInfo.cpp index 3af0222a21..219d24c1f5 100644 --- a/lib/VMCore/TargetTransformInfo.cpp +++ b/lib/VMCore/TargetTransformInfo.cpp @@ -17,6 +17,10 @@ using namespace llvm; /// @note This has to exist, because this is a pass, but it should never be /// used. TargetTransformInfo::TargetTransformInfo() : ImmutablePass(ID) { + /// You are seeing this error because your pass required the TTI + /// using a call to "getAnalysis()", and you did + /// not initialize a machine target which can provide the TTI. + /// You should use "getAnalysisIfAvailable()" instead. report_fatal_error("Bad TargetTransformInfo ctor used. " "Tool did not specify a TargetTransformInfo to use?"); } -- cgit v1.2.3