Refactor.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@129938 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/lib/CodeGen/AsmPrinter/AsmPrinter.cpp b/lib/CodeGen/AsmPrinter/AsmPrinter.cpp
index 8c367d1..609da25 100644
--- a/lib/CodeGen/AsmPrinter/AsmPrinter.cpp
+++ b/lib/CodeGen/AsmPrinter/AsmPrinter.cpp
@@ -752,6 +752,40 @@
return MachineLocation();
}
+/// EmitDwarfRegOp - Emit dwarf register operation.
+void AsmPrinter::EmitDwarfRegOp(const MachineLocation &MLoc) const {
+ const TargetRegisterInfo *RI = TM.getRegisterInfo();
+ unsigned Reg = RI->getDwarfRegNum(MLoc.getReg(), false);
+ if (int Offset = MLoc.getOffset()) {
+ // If the value is at a certain offset from frame register then
+ // use DW_OP_fbreg.
+ unsigned OffsetSize = Offset ? MCAsmInfo::getSLEB128Size(Offset) : 1;
+ OutStreamer.AddComment("Loc expr size");
+ EmitInt16(1 + OffsetSize);
+ OutStreamer.AddComment(
+ dwarf::OperationEncodingString(dwarf::DW_OP_fbreg));
+ EmitInt8(dwarf::DW_OP_fbreg);
+ OutStreamer.AddComment("Offset");
+ EmitSLEB128(Offset);
+ } else {
+ if (Reg < 32) {
+ OutStreamer.AddComment("Loc expr size");
+ EmitInt16(1);
+ OutStreamer.AddComment(
+ dwarf::OperationEncodingString(dwarf::DW_OP_reg0 + Reg));
+ EmitInt8(dwarf::DW_OP_reg0 + Reg);
+ } else {
+ OutStreamer.AddComment("Loc expr size");
+ EmitInt16(1 + MCAsmInfo::getULEB128Size(Reg));
+ OutStreamer.AddComment(
+ dwarf::OperationEncodingString(dwarf::DW_OP_regx));
+ EmitInt8(dwarf::DW_OP_regx);
+ OutStreamer.AddComment(Twine(Reg));
+ EmitULEB128(Reg);
+ }
+ }
+}
+
bool AsmPrinter::doFinalization(Module &M) {
// Emit global variables.
for (Module::const_global_iterator I = M.global_begin(), E = M.global_end();