Refactor.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@129938 91177308-0d34-0410-b5e6-96231b3b80d8

diff --git a/include/llvm/CodeGen/AsmPrinter.h b/include/llvm/CodeGen/AsmPrinter.h
index 10d48b3f9a161bb467d374cdde3b699abf29ff3d..1dac67119a5b48fbc0e01dc9659f95064deacbed 100644 (file)
--- a/include/llvm/CodeGen/AsmPrinter.h
+++ b/include/llvm/CodeGen/AsmPrinter.h
@@ -383,6 +383,9 @@ namespace llvm {
     /// encoding specified.
     virtual unsigned getISAEncoding() { return 0; }
 
+    /// EmitDwarfRegOp - Emit dwarf register operation.
+    virtual void EmitDwarfRegOp(const MachineLocation &MLoc) const;
+
     //===------------------------------------------------------------------===//
     // Dwarf Lowering Routines
     //===------------------------------------------------------------------===//

diff --git a/lib/CodeGen/AsmPrinter/AsmPrinter.cpp b/lib/CodeGen/AsmPrinter/AsmPrinter.cpp
index 8c367d1d7a62776a8d4f48fcbaa9fc1ea97eb864..609da254fce7b3011e96508e258228ba74798c7c 100644 (file)
--- a/lib/CodeGen/AsmPrinter/AsmPrinter.cpp
+++ b/lib/CodeGen/AsmPrinter/AsmPrinter.cpp
@@ -752,6 +752,40 @@ getDebugValueLocation(const MachineInstr *MI) const {
   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();

diff --git a/lib/CodeGen/AsmPrinter/DwarfDebug.cpp b/lib/CodeGen/AsmPrinter/DwarfDebug.cpp
index 3e676de70defc85803abe8853cae17e2a58c2bde..21900c260d531d4653105b72599e0709c602e454 100644 (file)
--- a/lib/CodeGen/AsmPrinter/DwarfDebug.cpp
+++ b/lib/CodeGen/AsmPrinter/DwarfDebug.cpp
@@ -2692,36 +2692,7 @@ void DwarfDebug::emitDebugLoc() {
     } else {
       Asm->OutStreamer.EmitSymbolValue(Entry.Begin, Size, 0);
       Asm->OutStreamer.EmitSymbolValue(Entry.End, Size, 0);
-      const TargetRegisterInfo *RI = Asm->TM.getRegisterInfo();
-      unsigned Reg = RI->getDwarfRegNum(Entry.Loc.getReg(), false);
-      if (int Offset =  Entry.Loc.getOffset()) {
-        // If the value is at a certain offset from frame register then
-        // use DW_OP_fbreg.
-        unsigned OffsetSize = Offset ? MCAsmInfo::getSLEB128Size(Offset) : 1;
-        Asm->OutStreamer.AddComment("Loc expr size");
-        Asm->EmitInt16(1 + OffsetSize);
-        Asm->OutStreamer.AddComment(
-          dwarf::OperationEncodingString(dwarf::DW_OP_fbreg));
-        Asm->EmitInt8(dwarf::DW_OP_fbreg);
-        Asm->OutStreamer.AddComment("Offset");
-        Asm->EmitSLEB128(Offset);
-      } else {
-        if (Reg < 32) {
-          Asm->OutStreamer.AddComment("Loc expr size");
-          Asm->EmitInt16(1);
-          Asm->OutStreamer.AddComment(
-            dwarf::OperationEncodingString(dwarf::DW_OP_reg0 + Reg));
-          Asm->EmitInt8(dwarf::DW_OP_reg0 + Reg);
-        } else {
-          Asm->OutStreamer.AddComment("Loc expr size");
-          Asm->EmitInt16(1 + MCAsmInfo::getULEB128Size(Reg));
-          Asm->OutStreamer.AddComment(
-            dwarf::OperationEncodingString(dwarf::DW_OP_regx));
-          Asm->EmitInt8(dwarf::DW_OP_regx);
-          Asm->OutStreamer.AddComment(Twine(Reg));
-          Asm->EmitULEB128(Reg);
-        }
-      }
+      Asm->EmitDwarfRegOp(Entry.Loc);
     }
   }
 }