diff options
Diffstat (limited to 'lib/CodeGen')
| -rw-r--r-- | lib/CodeGen/AsmPrinter.cpp | 23 |
1 files changed, 21 insertions, 2 deletions
diff --git a/lib/CodeGen/AsmPrinter.cpp b/lib/CodeGen/AsmPrinter.cpp index bcdb393c23..bfc0519806 100644 --- a/lib/CodeGen/AsmPrinter.cpp +++ b/lib/CodeGen/AsmPrinter.cpp @@ -253,8 +253,11 @@ bool AsmPrinter::EmitSpecialLLVMGlobal(const GlobalVariable *GV) { assert(GV->hasInitializer() && "Not a special LLVM global!"); - if (GV->getName() == "llvm.used") - return true; // No need to emit this at all. + if (GV->getName() == "llvm.used") { + if (TAI->getUsedDirective() != 0) // No need to emit this at all. + EmitLLVMUsedList(GV->getInitializer()); + return true; + } if (GV->getName() == "llvm.global_ctors" && GV->use_empty()) { SwitchToDataSection(TAI->getStaticCtorsSection(), 0); @@ -273,6 +276,22 @@ bool AsmPrinter::EmitSpecialLLVMGlobal(const GlobalVariable *GV) { return false; } +/// EmitLLVMUsedList - For targets that define a TAI::UsedDirective, mark each +/// global in the specified llvm.used list as being used with this directive. +void AsmPrinter::EmitLLVMUsedList(Constant *List) { + const char *Directive = TAI->getUsedDirective(); + + // Should be an array of 'sbyte*'. + ConstantArray *InitList = dyn_cast<ConstantArray>(List); + if (InitList == 0) return; + + for (unsigned i = 0, e = InitList->getNumOperands(); i != e; ++i) { + O << Directive; + EmitConstantValueOnly(InitList->getOperand(i)); + O << "\n"; + } +} + /// EmitXXStructorList - Emit the ctor or dtor list. This just prints out the /// function pointers, ignoring the init priority. void AsmPrinter::EmitXXStructorList(Constant *List) { |