Add support for referencing global variables/functions
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@4907 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/lib/Target/X86/Printer.cpp b/lib/Target/X86/Printer.cpp
index 3ab7506..6206059 100644
--- a/lib/Target/X86/Printer.cpp
+++ b/lib/Target/X86/Printer.cpp
@@ -96,6 +96,10 @@
const MRegisterInfo &RI) {
switch (MO.getType()) {
case MachineOperand::MO_VirtualRegister:
+ if (Value *V = MO.getVRegValue()) {
+ O << "<" << V->getName() << ">";
+ return;
+ }
case MachineOperand::MO_MachineRegister:
if (MO.getReg() < MRegisterInfo::FirstVirtualRegister)
O << RI.get(MO.getReg()).Name;
@@ -172,11 +176,15 @@
// There are currently two forms of acceptable AddRegFrm instructions.
// Either the instruction JUST takes a single register (like inc, dec, etc),
// or it takes a register and an immediate of the same size as the register
- // (move immediate f.e.).
+ // (move immediate f.e.). Note that this immediate value might be stored as
+ // an LLVM value, to represent, for example, loading the address of a global
+ // into a register.
//
assert(isReg(MI->getOperand(0)) &&
(MI->getNumOperands() == 1 ||
- (MI->getNumOperands() == 2 && isImmediate(MI->getOperand(1)))) &&
+ (MI->getNumOperands() == 2 &&
+ (MI->getOperand(1).getVRegValue() ||
+ isImmediate(MI->getOperand(1))))) &&
"Illegal form for AddRegFrm instruction!");
unsigned Reg = MI->getOperand(0).getReg();