From 292df8eb1f2e8967499161804e85772f5fd3a711 Mon Sep 17 00:00:00 2001 From: Chris Lattner Date: Tue, 20 Oct 2009 00:56:16 +0000 Subject: [PATCH] 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. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@84582 91177308-0d34-0410-b5e6-96231b3b80d8 --- lib/Target/ARM/AsmPrinter/ARMMCInstLower.cpp | 18 ++++++++++++++++-- lib/Target/ARM/AsmPrinter/ARMMCInstLower.h | 2 +- 2 files changed, 17 insertions(+), 3 deletions(-) diff --git a/lib/Target/ARM/AsmPrinter/ARMMCInstLower.cpp b/lib/Target/ARM/AsmPrinter/ARMMCInstLower.cpp index 2520b2c27ec..757164e682a 100644 --- a/lib/Target/ARM/AsmPrinter/ARMMCInstLower.cpp +++ b/lib/Target/ARM/AsmPrinter/ARMMCInstLower.cpp @@ -54,6 +54,22 @@ GetGlobalAddressSymbol(const MachineOperand &MO) const { 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 @@ void ARMMCInstLower::Lower(const MachineInstr *MI, MCInst &OutMI) const { 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/lib/Target/ARM/AsmPrinter/ARMMCInstLower.h b/lib/Target/ARM/AsmPrinter/ARMMCInstLower.h index 1b73e811f59..383d30d5de5 100644 --- a/lib/Target/ARM/AsmPrinter/ARMMCInstLower.h +++ b/lib/Target/ARM/AsmPrinter/ARMMCInstLower.h @@ -40,7 +40,7 @@ public: //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;