Revert "StripDebugInfo: uses isa<DbgInfoIntrinsic> instead of matching against llvm.dbg.* (NFC)"

This reverts commit r269537, was not ready to be commited and went through by mistake

From: Mehdi Amini <mehdi.amini@apple.com>
llvm-svn: 269539

1 files changed, 9 insertions, 2 deletions

diff --git a/llvm/lib/IR/DebugInfo.cpp b/llvm/lib/IR/DebugInfo.cpp
index 7a91b662388..82ce8c95e78 100644
--- a/llvm/lib/IR/DebugInfo.cpp
+++ b/llvm/lib/IR/DebugInfo.cpp
@@ -248,11 +248,18 @@ bool llvm::stripDebugInfo(Function &F) {
     F.setSubprogram(nullptr);
   }
 
+  Function *Declare = F.getParent()->getFunction("llvm.dbg.declare");
+  Function *DbgVal = F.getParent()->getFunction("llvm.dbg.value");
   for (BasicBlock &BB : F) {
     for (auto II = BB.begin(), End = BB.end(); II != End;) {
       Instruction &I = *II++; // We may delete the instruction, increment now.
-      if (dyn_cast<DbgInfoIntrinsic>(&I)) {
-        I.eraseFromParent();
+      // Remove all of the calls to the debugger intrinsics, and remove them
+      // from the module.
+      CallInst *CI = dyn_cast<CallInst>(&I);
+      if (CI && CI->getCalledFunction() &&
+          (CI->getCalledFunction() == Declare ||
+           CI->getCalledFunction() == DbgVal)) {
+        CI->eraseFromParent();
         Changed = true;
         continue;
       }