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-rw-r--r--lib/Target/AArch64/AArch64MCInstLower.cpp11
1 files changed, 11 insertions, 0 deletions
diff --git a/lib/Target/AArch64/AArch64MCInstLower.cpp b/lib/Target/AArch64/AArch64MCInstLower.cpp
index e57b0f4..b829341 100644
--- a/lib/Target/AArch64/AArch64MCInstLower.cpp
+++ b/lib/Target/AArch64/AArch64MCInstLower.cpp
@@ -22,9 +22,12 @@
#include "llvm/MC/MCExpr.h"
#include "llvm/MC/MCInst.h"
#include "llvm/Support/CodeGen.h"
+#include "llvm/Support/CommandLine.h"
#include "llvm/Target/TargetMachine.h"
using namespace llvm;
+extern cl::opt<bool> EnableAArch64ELFLocalDynamicTLSGeneration;
+
AArch64MCInstLower::AArch64MCInstLower(MCContext &ctx, AsmPrinter &printer)
: Ctx(ctx), Printer(printer), TargetTriple(printer.getTargetTriple()) {}
@@ -84,10 +87,16 @@ MCOperand AArch64MCInstLower::lowerSymbolOperandELF(const MachineOperand &MO,
if (MO.isGlobal()) {
const GlobalValue *GV = MO.getGlobal();
Model = Printer.TM.getTLSModel(GV);
+ if (!EnableAArch64ELFLocalDynamicTLSGeneration &&
+ Model == TLSModel::LocalDynamic)
+ Model = TLSModel::GeneralDynamic;
+
} else {
assert(MO.isSymbol() &&
StringRef(MO.getSymbolName()) == "_TLS_MODULE_BASE_" &&
"unexpected external TLS symbol");
+ // The general dynamic access sequence is used to get the
+ // address of _TLS_MODULE_BASE_.
Model = TLSModel::GeneralDynamic;
}
switch (Model) {
@@ -123,6 +132,8 @@ MCOperand AArch64MCInstLower::lowerSymbolOperandELF(const MachineOperand &MO,
RefFlags |= AArch64MCExpr::VK_G1;
else if ((MO.getTargetFlags() & AArch64II::MO_FRAGMENT) == AArch64II::MO_G0)
RefFlags |= AArch64MCExpr::VK_G0;
+ else if ((MO.getTargetFlags() & AArch64II::MO_FRAGMENT) == AArch64II::MO_HI12)
+ RefFlags |= AArch64MCExpr::VK_HI12;
if (MO.getTargetFlags() & AArch64II::MO_NC)
RefFlags |= AArch64MCExpr::VK_NC;