PNaCl: Add ReplacePtrsWithInts pass for stripping out pointer types

ReplacePtrsWithInts converts IR to a normal form in which functions
don't reference any aggregate pointer types and pointer types only
appear inside a few instructions.

Change BlockAddress::replaceUsesOfWithOnConstant() to handle changing
a function's type by replacing a function with a bitcast ConstantExpr
of a new function.

BUG=https://code.google.com/p/nativeclient/issues/detail?id=3343
TEST=replace-ptrs-with-ints.ll + PNaCl toolchain trybots, torture tests, etc.

Review URL: https://codereview.chromium.org/14262011

1 files changed, 0 insertions, 5 deletions

diff --git a/lib/Transforms/NaCl/ExpandVarArgs.cpp b/lib/Transforms/NaCl/ExpandVarArgs.cpp
index 1932107b4c..3ea093f8f8 100644
--- a/lib/Transforms/NaCl/ExpandVarArgs.cpp
+++ b/lib/Transforms/NaCl/ExpandVarArgs.cpp
@@ -65,11 +65,6 @@ INITIALIZE_PASS(ExpandVarArgs, "expand-varargs",
                 "Expand out variable argument function definitions and calls",
                 false, false)
 
-static Instruction *CopyDebug(Instruction *NewInst, Instruction *Original) {
-  NewInst->setDebugLoc(Original->getDebugLoc());
-  return NewInst;
-}
-
 static void ExpandVarArgFunc(Function *Func) {
   Type *PtrType = Type::getInt8PtrTy(Func->getContext());