fastisel doesn't need DwarfWriter, remove some tendricles.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@100381 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/lib/CodeGen/AsmPrinter/DwarfDebug.cpp b/lib/CodeGen/AsmPrinter/DwarfDebug.cpp
index 539eba0..3d86bf6 100644
--- a/lib/CodeGen/AsmPrinter/DwarfDebug.cpp
+++ b/lib/CodeGen/AsmPrinter/DwarfDebug.cpp
@@ -1793,24 +1793,39 @@
void DwarfDebug::beginModule(Module *M) {
if (!Asm->MAI->doesSupportDebugInformation())
return;
+
+ MMI = Asm->MMI;
TimeRegion Timer(DebugTimer);
-
+
DebugInfoFinder DbgFinder;
DbgFinder.processModule(*M);
+ bool HasDebugInfo = false;
+
+ // Scan all the compile-units to see if there are any marked as the main unit.
+ // if not, we do not generate debug info.
+ for (DebugInfoFinder::iterator I = DbgFinder.compile_unit_begin(),
+ E = DbgFinder.compile_unit_end(); I != E; ++I) {
+ if (DICompileUnit(*I).isMain()) {
+ HasDebugInfo = true;
+ break;
+ }
+ }
+
+ if (!HasDebugInfo) return;
+
+ // Tell MMI that we have debug info.
+ MMI->setDebugInfoAvailability(true);
+
// Emit initial sections.
- if (DbgFinder.compile_unit_begin() != DbgFinder.compile_unit_end())
- EmitSectionLabels();
+ EmitSectionLabels();
// Create all the compile unit DIEs.
for (DebugInfoFinder::iterator I = DbgFinder.compile_unit_begin(),
E = DbgFinder.compile_unit_end(); I != E; ++I)
constructCompileUnit(*I);
- if (!ModuleCU)
- return;
-
// Create DIEs for each subprogram.
for (DebugInfoFinder::iterator I = DbgFinder.subprogram_begin(),
E = DbgFinder.subprogram_end(); I != E; ++I)
@@ -1821,10 +1836,6 @@
E = DbgFinder.global_variable_end(); I != E; ++I)
constructGlobalVariableDIE(*I);
- MMI = Asm->MMI;
- shouldEmit = true;
- MMI->setDebugInfoAvailability(true);
-
// Prime section data.
SectionMap.insert(Asm->getObjFileLowering().getTextSection());
diff --git a/lib/CodeGen/AsmPrinter/DwarfDebug.h b/lib/CodeGen/AsmPrinter/DwarfDebug.h
index 320691b..b38e485 100644
--- a/lib/CodeGen/AsmPrinter/DwarfDebug.h
+++ b/lib/CodeGen/AsmPrinter/DwarfDebug.h
@@ -60,8 +60,10 @@
class DwarfDebug {
/// Asm - Target of Dwarf emission.
AsmPrinter *Asm;
+public:
/// MMI - Collected machine module information.
MachineModuleInfo *MMI;
+private:
//===--------------------------------------------------------------------===//
// Attributes used to construct specific Dwarf sections.
diff --git a/lib/CodeGen/AsmPrinter/DwarfWriter.cpp b/lib/CodeGen/AsmPrinter/DwarfWriter.cpp
index 1b019cd..acc0066 100644
--- a/lib/CodeGen/AsmPrinter/DwarfWriter.cpp
+++ b/lib/CodeGen/AsmPrinter/DwarfWriter.cpp
@@ -72,7 +72,7 @@
/// ShouldEmitDwarfDebug - Returns true if Dwarf debugging declarations should
/// be emitted.
bool DwarfWriter::ShouldEmitDwarfDebug() const {
- return DD && DD->ShouldEmitDwarfDebug();
+ return DD && DD->MMI->hasDebugInfo();
}
void DwarfWriter::BeginScope(const MachineInstr *MI) {
diff --git a/lib/CodeGen/SelectionDAG/FastISel.cpp b/lib/CodeGen/SelectionDAG/FastISel.cpp
index d6f8a20..fdb3b5c 100644
--- a/lib/CodeGen/SelectionDAG/FastISel.cpp
+++ b/lib/CodeGen/SelectionDAG/FastISel.cpp
@@ -47,7 +47,6 @@
#include "llvm/CodeGen/MachineInstrBuilder.h"
#include "llvm/CodeGen/MachineModuleInfo.h"
#include "llvm/CodeGen/MachineRegisterInfo.h"
-#include "llvm/CodeGen/DwarfWriter.h"
#include "llvm/Analysis/DebugInfo.h"
#include "llvm/Target/TargetData.h"
#include "llvm/Target/TargetInstrInfo.h"
@@ -326,8 +325,8 @@
default: break;
case Intrinsic::dbg_declare: {
DbgDeclareInst *DI = cast<DbgDeclareInst>(I);
- if (!DIDescriptor::ValidDebugInfo(DI->getVariable(), CodeGenOpt::None)||!DW
- || !DW->ShouldEmitDwarfDebug())
+ if (!DIDescriptor::ValidDebugInfo(DI->getVariable(), CodeGenOpt::None) ||
+ !MMI->hasDebugInfo())
return true;
Value *Address = DI->getAddress();
@@ -735,7 +734,6 @@
FastISel::FastISel(MachineFunction &mf,
MachineModuleInfo *mmi,
- DwarfWriter *dw,
DenseMap<const Value *, unsigned> &vm,
DenseMap<const BasicBlock *, MachineBasicBlock *> &bm,
DenseMap<const AllocaInst *, int> &am
@@ -752,7 +750,6 @@
#endif
MF(mf),
MMI(mmi),
- DW(dw),
MRI(MF.getRegInfo()),
MFI(*MF.getFrameInfo()),
MCP(*MF.getConstantPool()),
diff --git a/lib/CodeGen/SelectionDAG/SelectionDAGISel.cpp b/lib/CodeGen/SelectionDAG/SelectionDAGISel.cpp
index d54566b..69ff94b 100644
--- a/lib/CodeGen/SelectionDAG/SelectionDAGISel.cpp
+++ b/lib/CodeGen/SelectionDAG/SelectionDAGISel.cpp
@@ -342,7 +342,7 @@
// Mark landing pad.
FuncInfo->MBBMap[Invoke->getSuccessor(1)]->setIsLandingPad();
- SelectAllBasicBlocks(Fn, *MF, MMI, DW, TII);
+ SelectAllBasicBlocks(Fn, *MF, MMI, TII);
// If the first basic block in the function has live ins that need to be
// copied into vregs, emit the copies into the top of the block before
@@ -845,12 +845,11 @@
void SelectionDAGISel::SelectAllBasicBlocks(Function &Fn,
MachineFunction &MF,
MachineModuleInfo *MMI,
- DwarfWriter *DW,
const TargetInstrInfo &TII) {
// Initialize the Fast-ISel state, if needed.
FastISel *FastIS = 0;
if (EnableFastISel)
- FastIS = TLI.createFastISel(MF, MMI, DW,
+ FastIS = TLI.createFastISel(MF, MMI,
FuncInfo->ValueMap,
FuncInfo->MBBMap,
FuncInfo->StaticAllocaMap