add support for external symbols. The mc instprinter can now handle
reasonable code like Codegen/ARM/2009-02-27-SpillerBug.ll, producing
identical output except for superior formatting of constant pool entries.
llvm-svn: 84582
diff --git a/llvm/lib/Target/ARM/AsmPrinter/ARMMCInstLower.cpp b/llvm/lib/Target/ARM/AsmPrinter/ARMMCInstLower.cpp
index 2520b2c..757164e 100644
--- a/llvm/lib/Target/ARM/AsmPrinter/ARMMCInstLower.cpp
+++ b/llvm/lib/Target/ARM/AsmPrinter/ARMMCInstLower.cpp
@@ -54,6 +54,22 @@
return Ctx.GetOrCreateSymbol(Name.str());
}
+MCSymbol *ARMMCInstLower::
+GetExternalSymbolSymbol(const MachineOperand &MO) const {
+ SmallString<128> Name;
+ Name += Printer.MAI->getGlobalPrefix();
+ Name += MO.getSymbolName();
+
+ // FIXME: HANDLE PLT references how??
+ switch (MO.getTargetFlags()) {
+ default: assert(0 && "Unknown target flag on GV operand");
+ case 0: break;
+ }
+
+ return Ctx.GetOrCreateSymbol(Name.str());
+}
+
+
MCSymbol *ARMMCInstLower::
GetJumpTableSymbol(const MachineOperand &MO) const {
@@ -133,11 +149,9 @@
case MachineOperand::MO_GlobalAddress:
MCOp = LowerSymbolOperand(MO, GetGlobalAddressSymbol(MO));
break;
-#if 0
case MachineOperand::MO_ExternalSymbol:
MCOp = LowerSymbolOperand(MO, GetExternalSymbolSymbol(MO));
break;
-#endif
case MachineOperand::MO_JumpTableIndex:
MCOp = LowerSymbolOperand(MO, GetJumpTableSymbol(MO));
break;
diff --git a/llvm/lib/Target/ARM/AsmPrinter/ARMMCInstLower.h b/llvm/lib/Target/ARM/AsmPrinter/ARMMCInstLower.h
index 1b73e81..383d30d 100644
--- a/llvm/lib/Target/ARM/AsmPrinter/ARMMCInstLower.h
+++ b/llvm/lib/Target/ARM/AsmPrinter/ARMMCInstLower.h
@@ -40,7 +40,7 @@
//MCSymbol *GetPICBaseSymbol() const;
MCSymbol *GetGlobalAddressSymbol(const MachineOperand &MO) const;
- //MCSymbol *GetExternalSymbolSymbol(const MachineOperand &MO) const;
+ MCSymbol *GetExternalSymbolSymbol(const MachineOperand &MO) const;
MCSymbol *GetJumpTableSymbol(const MachineOperand &MO) const;
MCSymbol *GetConstantPoolIndexSymbol(const MachineOperand &MO) const;
MCOperand LowerSymbolOperand(const MachineOperand &MO, MCSymbol *Sym) const;