From: Andrew Lenharth <andrewl@lenharth.org>
Date: Sun, 19 Jun 2005 14:41:20 +0000 (+0000)
Subject: prevent DCE of vaarg intrinsics.  This should take care of most regressions
X-Git-Url: http://plrg.eecs.uci.edu/git/?a=commitdiff_plain;h=94cd87f658e278102e6e10404c59991aeca2eedc;p=oota-llvm.git

prevent DCE of vaarg intrinsics.  This should take care of most regressions


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@22263 91177308-0d34-0410-b5e6-96231b3b80d8
---

diff --git a/lib/Transforms/Utils/Local.cpp b/lib/Transforms/Utils/Local.cpp
index 0ed669643e5..b355b08672c 100644
--- a/lib/Transforms/Utils/Local.cpp
+++ b/lib/Transforms/Utils/Local.cpp
@@ -381,8 +381,6 @@ bool llvm::isInstructionTriviallyDead(Instruction *I) {
     if (Function *F = CI->getCalledFunction())
       switch (F->getIntrinsicID()) {
       default: break;
-      case Intrinsic::vastart:
-      case Intrinsic::vacopy:
       case Intrinsic::returnaddress:
       case Intrinsic::frameaddress:
       case Intrinsic::isunordered: