From c4e35050b02fa10e808a8ddf005659e8cdbe1535 Mon Sep 17 00:00:00 2001
From: Ilia Filippov <ili.filippov@gmail.com>
Date: Tue, 4 Mar 2014 16:01:18 +0400
Subject: [PATCH] support of building with C++11

---
 Makefile     |  6 +++---
 cbackend.cpp | 14 +++++++++++++-
 expr.cpp     |  4 ++--
 util.cpp     |  2 +-
 4 files changed, 19 insertions(+), 7 deletions(-)

diff --git a/Makefile b/Makefile
index f6d7af38..0b272b52 100644
--- a/Makefile
+++ b/Makefile
@@ -119,9 +119,9 @@ CXXFLAGS=$(OPT) $(LLVM_CXXFLAGS) -I. -Iobjs/ -I$(CLANG_INCLUDE)  \
 	$(LLVM_VERSION_DEF) \
 	-Wall \
 	-DBUILD_DATE="\"$(BUILD_DATE)\"" -DBUILD_VERSION="\"$(BUILD_VERSION)\"" \
-	-Wno-sign-compare -Wno-unused-function
-ifneq ($(LLVM_VERSION),LLVM_3_1)
-	CXXFLAGS+=-Werror
+	-Wno-sign-compare -Wno-unused-function -Werror
+ifeq ($(LLVM_VERSION),LLVM_3_5)
+	CXXFLAGS+=-std=c++11 -Wno-c99-extensions -Wno-deprecated-register
 endif
 ifneq ($(ARM_ENABLED), 0)
     CXXFLAGS+=-DISPC_ARM_ENABLED
diff --git a/cbackend.cpp b/cbackend.cpp
index 6465d466..1fcbfc2a 100644
--- a/cbackend.cpp
+++ b/cbackend.cpp
@@ -1462,7 +1462,7 @@ void CWriter::printConstant(llvm::Constant *CPV, bool Static) {
         char Buffer[100];
 
         uint64_t ll = llvm::DoubleToBits(V);
-        sprintf(Buffer, "0x%"PRIx64, ll);
+        sprintf(Buffer, "0x%" PRIx64, ll);
 
         std::string Num(&Buffer[0], &Buffer[6]);
         unsigned long Val = strtoul(Num.c_str(), 0, 16);
@@ -3123,7 +3123,11 @@ void CWriter::visitSwitchInst(llvm::SwitchInst &SI) {
     Out << ":\n";
     printPHICopiesForSuccessor (SI.getParent(), Succ, 2);
     printBranchToBlock(SI.getParent(), Succ, 2);
+#if defined (LLVM_3_5)
+    if (llvm::Function::iterator(Succ) == std::next(llvm::Function::iterator(SI.getParent())))
+#else
     if (llvm::Function::iterator(Succ) == llvm::next(llvm::Function::iterator(SI.getParent())))
+#endif
       Out << "    break;\n";
   }
 
@@ -3144,7 +3148,11 @@ bool CWriter::isGotoCodeNecessary(llvm::BasicBlock *From, llvm::BasicBlock *To)
   /// FIXME: This should be reenabled, but loop reordering safe!!
   return true;
 
+#if defined (LLVM_3_5)
+  if (std::next(llvm::Function::iterator(From)) != llvm::Function::iterator(To))
+#else
   if (llvm::next(llvm::Function::iterator(From)) != llvm::Function::iterator(To))
+#endif
     return true;  // Not the direct successor, we need a goto.
 
   //llvm::isa<llvm::SwitchInst>(From->getTerminator())
@@ -3752,7 +3760,11 @@ void CWriter::lowerIntrinsics(llvm::Function &F) {
             // All other intrinsic calls we must lower.
             llvm::Instruction *Before = 0;
             if (CI != &BB->front())
+#if defined(LLVM_3_5)
+              Before = std::prev(llvm::BasicBlock::iterator(CI));
+#else
               Before = prior(llvm::BasicBlock::iterator(CI));
+#endif
 
             IL->LowerIntrinsicCall(CI);
             if (Before) {        // Move iterator to instruction after call
diff --git a/expr.cpp b/expr.cpp
index b5c876fd..020a3b82 100644
--- a/expr.cpp
+++ b/expr.cpp
@@ -6194,10 +6194,10 @@ ConstExpr::Print() const {
             printf("%f", floatVal[i]);
             break;
         case AtomicType::TYPE_INT64:
-            printf("%"PRId64, int64Val[i]);
+            printf("%" PRId64, int64Val[i]);
             break;
         case AtomicType::TYPE_UINT64:
-            printf("%"PRIu64, uint64Val[i]);
+            printf("%" PRIu64, uint64Val[i]);
             break;
         case AtomicType::TYPE_DOUBLE:
             printf("%f", doubleVal[i]);
diff --git a/util.cpp b/util.cpp
index 6b121988..70bf53bb 100644
--- a/util.cpp
+++ b/util.cpp
@@ -577,7 +577,7 @@ GetDirectoryAndFileName(const std::string &currentDirectory,
     const char *basenameStart = strrchr(fp, '/');
     Assert(basenameStart != NULL);
     ++basenameStart;
-    Assert(basenameStart != '\0');
+    Assert(basenameStart[0] != '\0');
     *filename = basenameStart;
     *directory = std::string(fp, basenameStart - fp);
 #endif // ISPC_IS_WINDOWS