Use separate named MDNode to hold each function's local variable info.
This speeds up local variable handling in DwarfDebug.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@106075 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/lib/CodeGen/AsmPrinter/DwarfDebug.cpp b/lib/CodeGen/AsmPrinter/DwarfDebug.cpp
index 4705a0e..7da363f 100644
--- a/lib/CodeGen/AsmPrinter/DwarfDebug.cpp
+++ b/lib/CodeGen/AsmPrinter/DwarfDebug.cpp
@@ -2259,8 +2259,9 @@
}
// Collect info for variables that were optimized out.
- if (NamedMDNode *NMD =
- MF->getFunction()->getParent()->getNamedMetadata("llvm.dbg.lv")) {
+ const Twine FnLVName = Twine("llvm.dbg.lv.", MF->getFunction()->getName());
+ if (NamedMDNode *NMD =
+ MF->getFunction()->getParent()->getNamedMetadataUsingTwine(FnLVName)) {
for (unsigned i = 0, e = NMD->getNumOperands(); i != e; ++i) {
DIVariable DV(cast_or_null<MDNode>(NMD->getOperand(i)));
if (!DV || !Processed.insert(DV))