From 9dec3a2c0ca8d59e50ffbf1c97b171c7d5f2d6ec Mon Sep 17 00:00:00 2001 From: Chris Lattner Date: Fri, 1 Dec 2006 19:50:54 +0000 Subject: [PATCH] These should be rewritten to fold without using the 'Rules' mechanism, but until this happens at least make sext from bool and sitofp from bool do the right thing. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@32087 91177308-0d34-0410-b5e6-96231b3b80d8 --- lib/VMCore/ConstantFold.cpp | 3 +++ 1 file changed, 3 insertions(+) diff --git a/lib/VMCore/ConstantFold.cpp b/lib/VMCore/ConstantFold.cpp index 48d84e5ac54..49bdca2c5e7 100644 --- a/lib/VMCore/ConstantFold.cpp +++ b/lib/VMCore/ConstantFold.cpp @@ -890,6 +890,9 @@ Constant *llvm::ConstantFoldCastInstruction(unsigned opc, const Constant *V, if (isa(V)) V = ConstantInt::get(SrcTy->getSignedVersion(), cast(V)->getSExtValue()); + else if (const ConstantBool *CB = dyn_cast(V)) + V = ConstantInt::get(Type::SByteTy, CB->getValue() ? -1 : 0); + break; case Instruction::Trunc: // We just handle trunc directly here. The code below doesn't work for