From 5461d45abf940b51cfe97eaa0a7cf274d43cb394 Mon Sep 17 00:00:00 2001 From: Philip Reames Date: Thu, 23 Apr 2015 17:36:48 +0000 Subject: Move Value.isDereferenceablePointer to ValueTracking [NFC] Move isDereferenceablePointer function to Analysis. This function recursively tracks dereferencability over a chain of values like other functions in ValueTracking. This refactoring is motivated by further changes to support dereferenceable_or_null attribute (http://reviews.llvm.org/D8650). isDereferenceablePointer will be extended to perform context-sensitive analysis and IR is not a good place to have such functionality. Patch by: Artur Pilipenko Differential Revision: reviews.llvm.org/D9075 llvm-svn: 235611 --- llvm/lib/Transforms/IPO/ArgumentPromotion.cpp | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-) (limited to 'llvm/lib/Transforms/IPO/ArgumentPromotion.cpp') diff --git a/llvm/lib/Transforms/IPO/ArgumentPromotion.cpp b/llvm/lib/Transforms/IPO/ArgumentPromotion.cpp index eee5a6a..79e15bd 100644 --- a/llvm/lib/Transforms/IPO/ArgumentPromotion.cpp +++ b/llvm/lib/Transforms/IPO/ArgumentPromotion.cpp @@ -36,6 +36,7 @@ #include "llvm/Analysis/AliasAnalysis.h" #include "llvm/Analysis/CallGraph.h" #include "llvm/Analysis/CallGraphSCCPass.h" +#include "llvm/Analysis/ValueTracking.h" #include "llvm/IR/CFG.h" #include "llvm/IR/CallSite.h" #include "llvm/IR/Constants.h" @@ -321,7 +322,7 @@ static bool AllCallersPassInValidPointerForArgument(Argument *Arg) { CallSite CS(U); assert(CS && "Should only have direct calls!"); - if (!CS.getArgument(ArgNo)->isDereferenceablePointer(DL)) + if (!isDereferenceablePointer(CS.getArgument(ArgNo), DL)) return false; } return true; -- cgit v1.1