Checkpoint MCInst printer. We (almostly) able to print global / JT / constpool entries
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@84706 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/lib/Target/MSP430/AsmPrinter/MSP430MCInstLower.cpp b/lib/Target/MSP430/AsmPrinter/MSP430MCInstLower.cpp
index b839ac5..e9b0c92 100644
--- a/lib/Target/MSP430/AsmPrinter/MSP430MCInstLower.cpp
+++ b/lib/Target/MSP430/AsmPrinter/MSP430MCInstLower.cpp
@@ -19,10 +19,75 @@
#include "llvm/MC/MCExpr.h"
#include "llvm/MC/MCInst.h"
#include "llvm/Support/raw_ostream.h"
+#include "llvm/Support/ErrorHandling.h"
#include "llvm/Support/Mangler.h"
#include "llvm/ADT/SmallString.h"
using namespace llvm;
+MCSymbol *MSP430MCInstLower::
+GetGlobalAddressSymbol(const MachineOperand &MO) const {
+ const GlobalValue *GV = MO.getGlobal();
+
+ SmallString<128> Name;
+ Mang.getNameWithPrefix(Name, GV, false);
+
+ switch (MO.getTargetFlags()) {
+ default: llvm_unreachable(0 && "Unknown target flag on GV operand");
+ case 0: break;
+ }
+
+ return Ctx.GetOrCreateSymbol(Name.str());
+}
+
+
+MCSymbol *MSP430MCInstLower::
+GetJumpTableSymbol(const MachineOperand &MO) const {
+ SmallString<256> Name;
+ raw_svector_ostream(Name) << MAI.getPrivateGlobalPrefix() << "JTI"
+ << CurFunctionNumber << '_' << MO.getIndex();
+
+ switch (MO.getTargetFlags()) {
+ default: llvm_unreachable("Unknown target flag on GV operand");
+ case 0: break;
+ }
+
+ // Create a symbol for the name.
+ return Ctx.GetOrCreateSymbol(Name.str());
+}
+
+MCSymbol *MSP430MCInstLower::
+GetConstantPoolIndexSymbol(const MachineOperand &MO) const {
+ SmallString<256> Name;
+ raw_svector_ostream(Name) << MAI.getPrivateGlobalPrefix() << "CPI"
+ << CurFunctionNumber << '_' << MO.getIndex();
+
+ switch (MO.getTargetFlags()) {
+ default: llvm_unreachable("Unknown target flag on GV operand");
+ case 0: break;
+ }
+
+ // Create a symbol for the name.
+ return Ctx.GetOrCreateSymbol(Name.str());
+}
+
+MCOperand MSP430MCInstLower::
+LowerSymbolOperand(const MachineOperand &MO, MCSymbol *Sym) const {
+ // FIXME: We would like an efficient form for this, so we don't have to do a
+ // lot of extra uniquing.
+ const MCExpr *Expr = MCSymbolRefExpr::Create(Sym, Ctx);
+
+ switch (MO.getTargetFlags()) {
+ default: llvm_unreachable("Unknown target flag on GV operand");
+ case 0: break;
+ }
+
+ if (!MO.isJTI() && MO.getOffset())
+ Expr = MCBinaryExpr::CreateAdd(Expr,
+ MCConstantExpr::Create(MO.getOffset(), Ctx),
+ Ctx);
+ return MCOperand::CreateExpr(Expr);
+}
+
void MSP430MCInstLower::Lower(const MachineInstr *MI, MCInst &OutMI) const {
OutMI.setOpcode(MI->getOpcode());
@@ -45,22 +110,23 @@
MCOp = MCOperand::CreateExpr(MCSymbolRefExpr::Create(
AsmPrinter.GetMBBSymbol(MO.getMBB()->getNumber()), Ctx));
break;
+#endif
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;
case MachineOperand::MO_ConstantPoolIndex:
MCOp = LowerSymbolOperand(MO, GetConstantPoolIndexSymbol(MO));
break;
-#endif
}
OutMI.addOperand(MCOp);
}
-
}