Global variables don't have a corresponding llvm.dbg.declare, yet it is possible
to obtain debug info about them.
Introduce helpers to access debug info for global variables. Also introduce a
helper that works for both local and global variables.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@66541 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/lib/Analysis/DbgInfoPrinter.cpp b/lib/Analysis/DbgInfoPrinter.cpp
index 127f931..e43bc81 100644
--- a/lib/Analysis/DbgInfoPrinter.cpp
+++ b/lib/Analysis/DbgInfoPrinter.cpp
@@ -19,6 +19,7 @@
#include "llvm/Module.h"
#include "llvm/Value.h"
#include "llvm/IntrinsicInst.h"
+#include "llvm/Assembly/Writer.h"
#include "llvm/Analysis/DebugInfo.h"
#include "llvm/Analysis/Passes.h"
#include "llvm/Analysis/ValueTracking.h"
@@ -57,12 +58,17 @@
void PrintDbgInfo::printVariableDeclaration(const Value *V)
{
- if(const DbgDeclareInst* DDI = findDbgDeclare(V)) {
- DIVariable Var(cast<GlobalVariable>(DDI->getVariable()));
- std::string Res1, Res2;
- Out << "; variable " << Var.getName(Res1)
- << " of type " << Var.getType().getName(Res2)
- << " at line " << Var.getLineNumber() << "\n";
+ std::string DisplayName, File, Directory, Type;
+ unsigned LineNo;
+ if (getLocationInfo(V, DisplayName, Type, LineNo, File, Directory)) {
+ Out << "; ";
+ WriteAsOperand(Out, V, false, 0);
+ Out << " is variable " << DisplayName
+ << " of type " << Type << " declared at ";
+ if (PrintDirectory) {
+ Out << Directory << "/";
+ }
+ Out << File << ":" << LineNo << "\n";
}
}
@@ -140,6 +146,11 @@
}
Out << *i;
printVariableDeclaration(i);
+ if (const User *U = dyn_cast<User>(i)) {
+ for(unsigned i=0;i<U->getNumOperands();i++) {
+ printVariableDeclaration(U->getOperand(i));
+ }
+ }
}
}
}