From b2fc2a330a9106c67d50a2b6dbfffc679af4ce88 Mon Sep 17 00:00:00 2001 From: Evan Cheng Date: Thu, 17 Jan 2008 04:18:54 +0000 Subject: [PATCH] DAE bug fix. Don't lose parameter attributes on vararg arguments. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@46113 91177308-0d34-0410-b5e6-96231b3b80d8 --- lib/Transforms/IPO/DeadArgumentElimination.cpp | 14 +++++++++----- 1 file changed, 9 insertions(+), 5 deletions(-) diff --git a/lib/Transforms/IPO/DeadArgumentElimination.cpp b/lib/Transforms/IPO/DeadArgumentElimination.cpp index b8770121eb0..3a4c36f87f1 100644 --- a/lib/Transforms/IPO/DeadArgumentElimination.cpp +++ b/lib/Transforms/IPO/DeadArgumentElimination.cpp @@ -590,15 +590,19 @@ void DAE::RemoveDeadArgumentsFromFunction(Function *F) { ParamAttrsVec.push_back(ParamAttrsWithIndex::get(Args.size(), Attrs)); } - // Reconstruct the ParamAttrsList based on the vector we constructed. - PAL = ParamAttrsList::get(ParamAttrsVec); - if (ExtraArgHack) Args.push_back(UndefValue::get(Type::Int32Ty)); - // Push any varargs arguments on the list - for (; AI != CS.arg_end(); ++AI) + // Push any varargs arguments on the list. Don't forget their attributes. + for (; AI != CS.arg_end(); ++AI) { Args.push_back(*AI); + uint16_t Attrs = PAL ? PAL->getParamAttrs(index++) : 0; + if (Attrs) + ParamAttrsVec.push_back(ParamAttrsWithIndex::get(Args.size(), Attrs)); + } + + // Reconstruct the ParamAttrsList based on the vector we constructed. + PAL = ParamAttrsList::get(ParamAttrsVec); Instruction *New; if (InvokeInst *II = dyn_cast(Call)) {