[Hexagon] Replace use of "std::map::emplace" with "insert"

Gcc 4.7.2-4 does not seem to have "emplace" in its implementation of map.
This should fix the build failure on polly-amd64-linux.

llvm-svn: 260816

1 files changed, 4 insertions, 1 deletions

diff --git a/llvm/lib/Target/Hexagon/HexagonFrameLowering.cpp b/llvm/lib/Target/Hexagon/HexagonFrameLowering.cpp
index 62877870395..42c94091b9e 100644
--- a/llvm/lib/Target/Hexagon/HexagonFrameLowering.cpp
+++ b/llvm/lib/Target/Hexagon/HexagonFrameLowering.cpp
@@ -1762,7 +1762,10 @@ void HexagonFrameLowering::optimizeSpillSlots(MachineFunction &MF,
   // and collect relevant information.
   for (auto &B : MF) {
     std::map<int,IndexType> LastStore, LastLoad;
-    auto P = BlockIndexes.emplace(&B, HexagonBlockRanges::InstrIndexMap(B));
+    // Emplace appears not to be supported in gcc 4.7.2-4.
+    //auto P = BlockIndexes.emplace(&B, HexagonBlockRanges::InstrIndexMap(B));
+    auto TmpP = std::make_pair(&B, HexagonBlockRanges::InstrIndexMap(B));
+    auto P = BlockIndexes.insert(TmpP);
     auto &IndexMap = P.first->second;
     DEBUG(dbgs() << "Index map for BB#" << B.getNumber() << "\n"
                  << IndexMap << '\n');