From 843bc7d6736b8c0413047e9e988c24da8ff32b44 Mon Sep 17 00:00:00 2001 From: Cameron Zwarich Date: Tue, 24 May 2011 03:10:43 +0000 Subject: Make LoadAndStorePromoter preserve debug info and create llvm.dbg.values when promoting allocas to SSA variables. Fixes . llvm-svn: 131953 --- llvm/lib/Transforms/Utils/Local.cpp | 13 +++++++++++++ 1 file changed, 13 insertions(+) (limited to 'llvm/lib/Transforms/Utils/Local.cpp') diff --git a/llvm/lib/Transforms/Utils/Local.cpp b/llvm/lib/Transforms/Utils/Local.cpp index f5a8adacd5a..3bdbaa5c09d 100644 --- a/llvm/lib/Transforms/Utils/Local.cpp +++ b/llvm/lib/Transforms/Utils/Local.cpp @@ -20,6 +20,7 @@ #include "llvm/Instructions.h" #include "llvm/Intrinsics.h" #include "llvm/IntrinsicInst.h" +#include "llvm/Metadata.h" #include "llvm/Operator.h" #include "llvm/ADT/DenseMap.h" #include "llvm/ADT/SmallPtrSet.h" @@ -877,3 +878,15 @@ bool llvm::LowerDbgDeclare(Function &F) { } return true; } + +/// FindAllocaDbgDeclare - Finds the llvm.dbg.declare intrinsic describing the +/// alloca 'V', if any. +DbgDeclareInst *llvm::FindAllocaDbgDeclare(Value *V) { + if (MDNode *DebugNode = MDNode::getIfExists(V->getContext(), V)) + for (Value::use_iterator UI = DebugNode->use_begin(), + E = DebugNode->use_end(); UI != E; ++UI) + if (DbgDeclareInst *DDI = dyn_cast(*UI)) + return DDI; + + return 0; +} -- cgit v1.2.3