Refactor. It is inliner's responsibility to update line number information.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@134708 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/lib/Transforms/Utils/InlineFunction.cpp b/lib/Transforms/Utils/InlineFunction.cpp
index 18ecd61..348c3e4 100644
--- a/lib/Transforms/Utils/InlineFunction.cpp
+++ b/lib/Transforms/Utils/InlineFunction.cpp
@@ -744,6 +744,41 @@
return false;
}
+/// updateInlinedAtInfo - Helper function used by fixupLineNumbers to recursively
+/// update InlinedAtEntry of a DebugLoc.
+static DebugLoc updateInlinedAtInfo(const DebugLoc &DL,
+ const DebugLoc &InlinedAtDL,
+ LLVMContext &Ctx) {
+ if (MDNode *IA = DL.getInlinedAt(Ctx)) {
+ DebugLoc NewInlinedAtDL
+ = updateInlinedAtInfo(DebugLoc::getFromDILocation(IA), InlinedAtDL, Ctx);
+ return DebugLoc::get(DL.getLine(), DL.getCol(), DL.getScope(Ctx),
+ NewInlinedAtDL.getAsMDNode(Ctx));
+ }
+
+ return DebugLoc::get(DL.getLine(), DL.getCol(), DL.getScope(Ctx),
+ InlinedAtDL.getAsMDNode(Ctx));
+}
+
+
+/// fixupLineNumbers - Update inlined instructions' line numbers to
+/// to encode location where these instructions are inlined.
+static void fixupLineNumbers(Function *Fn, Function::iterator FI,
+ Instruction *TheCall) {
+ DebugLoc TheCallDL = TheCall->getDebugLoc();
+ if (TheCallDL.isUnknown())
+ return;
+
+ for (; FI != Fn->end(); ++FI) {
+ for (BasicBlock::iterator BI = FI->begin(), BE = FI->end();
+ BI != BE; ++BI) {
+ DebugLoc DL = BI->getDebugLoc();
+ if (!DL.isUnknown())
+ BI->setDebugLoc(updateInlinedAtInfo(DL, TheCallDL, BI->getContext()));
+ }
+ }
+}
+
// InlineFunction - This function inlines the called function into the basic
// block of the caller. This returns false if it is not possible to inline this
// call. The program is still in a well defined state if this occurs though.
@@ -846,6 +881,9 @@
// Update the callgraph if requested.
if (IFI.CG)
UpdateCallGraphAfterInlining(CS, FirstNewBlock, VMap, IFI);
+
+ // Update inlined instructions' line number information.
+ fixupLineNumbers(Caller, FirstNewBlock, TheCall);
}
// If there are any alloca instructions in the block that used to be the entry