Changes in directory llvm/lib/Target/X86:
X86ATTAsmPrinter.cpp updated: 1.29 -> 1.30
X86AsmPrinter.cpp updated: 1.168 -> 1.169
X86AsmPrinter.h updated: 1.12 -> 1.13
X86IntelAsmPrinter.cpp updated: 1.22 -> 1.23
---
Log message:
- Emit subsections_via_symbols for Darwin.
- Conditionalize Dwarf debugging output (Darwin only for now).
---
Diffs of the changes: (+41 -20)
X86ATTAsmPrinter.cpp | 20 +++++++++++++-------
X86AsmPrinter.cpp | 19 ++++++++++++++-----
X86AsmPrinter.h | 2 +-
X86IntelAsmPrinter.cpp | 20 +++++++++++++-------
4 files changed, 41 insertions(+), 20 deletions(-)
Index: llvm/lib/Target/X86/X86ATTAsmPrinter.cpp
diff -u llvm/lib/Target/X86/X86ATTAsmPrinter.cpp:1.29
llvm/lib/Target/X86/X86ATTAsmPrinter.cpp:1.30
--- llvm/lib/Target/X86/X86ATTAsmPrinter.cpp:1.29 Mon Mar 6 20:02:57 2006
+++ llvm/lib/Target/X86/X86ATTAsmPrinter.cpp Mon Mar 6 20:23:26 2006
@@ -27,15 +27,19 @@
/// method to print assembly for each instruction.
///
bool X86ATTAsmPrinter::runOnMachineFunction(MachineFunction &MF) {
- // Let PassManager know we need debug information and relay
- // the MachineDebugInfo address on to DwarfWriter.
- DW.SetDebugInfo(&getAnalysis<MachineDebugInfo>());
+ // if (forDarwin) {
+ // Let PassManager know we need debug information and relay
+ // the MachineDebugInfo address on to DwarfWriter.
+ DW.SetDebugInfo(&getAnalysis<MachineDebugInfo>());
+ // }
SetupMachineFunction(MF);
O << "\n\n";
- // Emit pre-function debug information.
- DW.BeginFunction(MF);
+ if (forDarwin) {
+ // Emit pre-function debug information.
+ DW.BeginFunction(MF);
+ }
// Print out constants referenced by the function
EmitConstantPool(MF.getConstantPool());
@@ -88,8 +92,10 @@
if (HasDotTypeDotSizeDirective)
O << "\t.size " << CurrentFnName << ", .-" << CurrentFnName << "\n";
- // Emit post-function debug information.
- DW.EndFunction(MF);
+ if (forDarwin) {
+ // Emit post-function debug information.
+ DW.EndFunction(MF);
+ }
// We didn't modify anything.
return false;
Index: llvm/lib/Target/X86/X86AsmPrinter.cpp
diff -u llvm/lib/Target/X86/X86AsmPrinter.cpp:1.168
llvm/lib/Target/X86/X86AsmPrinter.cpp:1.169
--- llvm/lib/Target/X86/X86AsmPrinter.cpp:1.168 Mon Mar 6 20:02:57 2006
+++ llvm/lib/Target/X86/X86AsmPrinter.cpp Mon Mar 6 20:23:26 2006
@@ -75,8 +75,10 @@
default: break;
}
- // Emit initial debug information.
- DW.BeginModule(M);
+ if (forDarwin) {
+ // Emit initial debug information.
+ DW.BeginModule(M);
+ }
return AsmPrinter::doInitialization(M);
}
@@ -188,10 +190,17 @@
O << "\t.indirect_symbol " << *i << "\n";
O << "\t.long\t0\n";
}
- }
- // Emit initial debug information.
- DW.EndModule(M);
+ // Emit initial debug information.
+ DW.EndModule(M);
+
+ // Funny Darwin hack: This flag tells the linker that no global symbols
+ // contain code that falls through to other global symbols (e.g. the
obvious
+ // implementation of multiple entry points). If this doesn't occur, the
+ // linker can safely perform dead code stripping. Since LLVM never
generates
+ // code that does this, it is always safe to set.
+ O << "\t.subsections_via_symbols\n";
+ }
AsmPrinter::doFinalization(M);
return false; // success
Index: llvm/lib/Target/X86/X86AsmPrinter.h
diff -u llvm/lib/Target/X86/X86AsmPrinter.h:1.12
llvm/lib/Target/X86/X86AsmPrinter.h:1.13
--- llvm/lib/Target/X86/X86AsmPrinter.h:1.12 Mon Mar 6 20:02:57 2006
+++ llvm/lib/Target/X86/X86AsmPrinter.h Mon Mar 6 20:23:26 2006
@@ -68,7 +68,7 @@
MachineFunctionPass::getAnalysisUsage(AU);
}
- bool forDarwin; // FIXME: eliminate.
+ bool forDarwin; // FIXME: eliminate.
// Necessary for Darwin to print out the apprioriate types of linker stubs
std::set<std::string> FnStubs, GVStubs, LinkOnceStubs;
Index: llvm/lib/Target/X86/X86IntelAsmPrinter.cpp
diff -u llvm/lib/Target/X86/X86IntelAsmPrinter.cpp:1.22
llvm/lib/Target/X86/X86IntelAsmPrinter.cpp:1.23
--- llvm/lib/Target/X86/X86IntelAsmPrinter.cpp:1.22 Mon Mar 6 20:02:57 2006
+++ llvm/lib/Target/X86/X86IntelAsmPrinter.cpp Mon Mar 6 20:23:26 2006
@@ -26,15 +26,19 @@
/// method to print assembly for each instruction.
///
bool X86IntelAsmPrinter::runOnMachineFunction(MachineFunction &MF) {
- // Let PassManager know we need debug information and relay
- // the MachineDebugInfo address on to DwarfWriter.
- DW.SetDebugInfo(&getAnalysis<MachineDebugInfo>());
+ if (forDarwin) {
+ // Let PassManager know we need debug information and relay
+ // the MachineDebugInfo address on to DwarfWriter.
+ DW.SetDebugInfo(&getAnalysis<MachineDebugInfo>());
+ }
SetupMachineFunction(MF);
O << "\n\n";
- // Emit pre-function debug information.
- DW.BeginFunction(MF);
+ if (forDarwin) {
+ // Emit pre-function debug information.
+ DW.BeginFunction(MF);
+ }
// Print out constants referenced by the function
EmitConstantPool(MF.getConstantPool());
@@ -63,8 +67,10 @@
}
}
- // Emit post-function debug information.
- DW.EndFunction(MF);
+ if (forDarwin) {
+ // Emit post-function debug information.
+ DW.EndFunction(MF);
+ }
// We didn't modify anything.
return false;
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