[PATCH] D68907: [6/7/trunk] -fno-plt generates wrong relocation for std::ios_base::Init leading to segmentation fault

[kamlesh kumar via Phabricator via llvm-commits]

kamleshbhalui updated this revision to Diff 224780.
kamleshbhalui edited the summary of this revision.

Repository:
  rL LLVM

CHANGES SINCE LAST ACTION
  https://reviews.llvm.org/D68907/new/

https://reviews.llvm.org/D68907

Files:
  llvm/lib/Target/X86/X86FastISel.cpp


Index: llvm/lib/Target/X86/X86FastISel.cpp
===================================================================
--- llvm/lib/Target/X86/X86FastISel.cpp
+++ llvm/lib/Target/X86/X86FastISel.cpp
@@ -745,6 +745,12 @@
         AM.Base.Reg = getInstrInfo()->getGlobalBaseReg(FuncInfo.MF);
       }

+      bool NeedLoad = GVFlags == X86II::MO_GOTPCREL;
+      if(NeedLoad) {
+          assert(AM.Base.Reg == 0 && AM.IndexReg == 0);
+          AM.Base.Reg = X86::RIP;
+      }
+
       // Unless the ABI requires an extra load, return a direct reference to
       // the global.
       if (!isGlobalStubReference(GVFlags)) {


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