fix D78849 for g++ < 7.1

nickdesaulniers · nickdesaulniers · commit 59acdf0aca10 · 2020-04-27T13:47:00.000-07:00
Summary: Looks like g++ < 7.1 has a bug resolving calls to member functions without `this->` in lamdas with `auto` types. It looks like multiple build bots are using g++-5. https://stackoverflow.com/questions/32097759/calling-this-member-function-from-generic-lambda-clang-vs-gcc https://godbolt.org/z/MiaRt- Reviewers: MaskRay, efriedma, jyknight, craig.topper, rsmith Reviewed By: rsmith Subscribers: hiraditya, llvm-commits, srhines Tags: #llvm Differential Revision: https://reviews.llvm.org/D78962
diff --git a/llvm/lib/CodeGen/MachineVerifier.cpp b/llvm/lib/CodeGen/MachineVerifier.cpp
@@ -168,14 +168,14 @@ namespace {
 
       // Same for a full set.
       bool addRequired(const RegSet &RS) {
-        return llvm::any_of(RS,
-                            [this](unsigned Reg) { return addRequired(Reg); });
+        return llvm::any_of(
+            RS, [this](unsigned Reg) { return this->addRequired(Reg); });
       }
 
       // Same for a full map.
       bool addRequired(const RegMap &RM) {
         return llvm::any_of(
-            RM, [this](const auto &P) { return addRequired(P.first); });
+            RM, [this](const auto &P) { return this->addRequired(P.first); });
       }
 
       // Live-out registers are either in regsLiveOut or vregsPassed.
