From 2d16145acfb67c7498cf43a7a3fd04b543a2a767 Mon Sep 17 00:00:00 2001
From: Sanjoy Das <sanjoy@playingwithpointers.com>
Date: Wed, 18 Nov 2015 06:23:38 +0000
Subject: Teach the inliner to track deoptimization state

Summary:
This change teaches LLVM's inliner to track and suitably adjust
deoptimization state (tracked via deoptimization operand bundles) as it
inlines through call sites.  The operation is described in more detail
in the LangRef changes.

Reviewers: reames, majnemer, chandlerc, dexonsmith

Subscribers: llvm-commits

Differential Revision: http://reviews.llvm.org/D14552

llvm-svn: 253438
---
 llvm/lib/IR/Instructions.cpp | 26 ++++++++++++++++++++++++++
 1 file changed, 26 insertions(+)

(limited to 'llvm/lib/IR/Instructions.cpp')

diff --git a/llvm/lib/IR/Instructions.cpp b/llvm/lib/IR/Instructions.cpp
index 9b6dfc2bf6a..b8c72dd7e39 100644
--- a/llvm/lib/IR/Instructions.cpp
+++ b/llvm/lib/IR/Instructions.cpp
@@ -297,6 +297,19 @@ CallInst::CallInst(const CallInst &CI)
   SubclassOptionalData = CI.SubclassOptionalData;
 }
 
+CallInst *CallInst::Create(CallInst *CI, ArrayRef<OperandBundleDef> OpB,
+                           Instruction *InsertPt) {
+  CallSite CS(CI);
+  std::vector<Value *> Args(CS.arg_begin(), CS.arg_end());
+
+  auto *NewCI = CallInst::Create(CI->getCalledValue(), Args, OpB, CI->getName(),
+                                 InsertPt);
+  NewCI->setTailCallKind(CI->getTailCallKind());
+  NewCI->setCallingConv(CI->getCallingConv());
+  NewCI->SubclassOptionalData = CI->SubclassOptionalData;
+  return NewCI;
+}
+
 void CallInst::addAttribute(unsigned i, Attribute::AttrKind attr) {
   AttributeSet PAL = getAttributes();
   PAL = PAL.addAttribute(getContext(), i, attr);
@@ -571,6 +584,19 @@ InvokeInst::InvokeInst(const InvokeInst &II)
   SubclassOptionalData = II.SubclassOptionalData;
 }
 
+InvokeInst *InvokeInst::Create(InvokeInst *II, ArrayRef<OperandBundleDef> OpB,
+                               Instruction *InsertPt) {
+  CallSite CS(II);
+  std::vector<Value *> Args(CS.arg_begin(), CS.arg_end());
+
+  auto *NewII = InvokeInst::Create(II->getCalledValue(), II->getNormalDest(),
+                                   II->getUnwindDest(), Args, OpB,
+                                   II->getName(), InsertPt);
+  NewII->setCallingConv(II->getCallingConv());
+  NewII->SubclassOptionalData = II->SubclassOptionalData;
+  return NewII;
+}
+
 BasicBlock *InvokeInst::getSuccessorV(unsigned idx) const {
   return getSuccessor(idx);
 }
-- 
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