Dwarf requires variable entries to be in the source order. Right now, since we are recording variable information at isel time this means parameters would appear in the reverse order. The short term fix is to issue recordVariable() at asm printing time instead.

llvm-svn: 46724

1 files changed, 7 insertions, 4 deletions

diff --git a/llvm/lib/CodeGen/AsmPrinter.cpp b/llvm/lib/CodeGen/AsmPrinter.cpp
index f581bd6272d..820d75c4a0b 100644
--- a/llvm/lib/CodeGen/AsmPrinter.cpp
+++ b/llvm/lib/CodeGen/AsmPrinter.cpp
@@ -118,9 +118,8 @@ bool AsmPrinter::doInitialization(Module &M) {
 
   SwitchToDataSection("");   // Reset back to no section.
   
-  if (MachineModuleInfo *MMI = getAnalysisToUpdate<MachineModuleInfo>()) {
-    MMI->AnalyzeModule(M);
-  }
+  MMI = getAnalysisToUpdate<MachineModuleInfo>();
+  if (MMI) MMI->AnalyzeModule(M);
   
   return false;
 }
@@ -1291,8 +1290,12 @@ void AsmPrinter::printLabel(unsigned Id) const {
 
 /// printDeclare - This method prints a local variable declaration used by
 /// debug tables.
+/// FIXME: It doesn't really print anything rather it inserts a DebugVariable
+/// entry into dwarf table.
 void AsmPrinter::printDeclare(const MachineInstr *MI) const {
-  // Do nothing.
+  int FI = MI->getOperand(0).getIndex();
+  GlobalValue *GV = MI->getOperand(1).getGlobal();
+  MMI->RecordVariable(GV, FI);
 }
 
 /// PrintAsmOperand - Print the specified operand of MI, an INLINEASM