ArgumentPromotion: Propagate debug locations on calls for which arguments are promoted.

llvm-svn: 211872

2 files changed, 18 insertions, 0 deletions

diff --git a/llvm/lib/Transforms/IPO/ArgumentPromotion.cpp b/llvm/lib/Transforms/IPO/ArgumentPromotion.cpp
index 377fa153a25..4618c26bc65 100644
--- a/llvm/lib/Transforms/IPO/ArgumentPromotion.cpp
+++ b/llvm/lib/Transforms/IPO/ArgumentPromotion.cpp
@@ -741,6 +741,7 @@ CallGraphNode *ArgPromotion::DoPromotion(Function *F,
       if (cast<CallInst>(Call)->isTailCall())
         cast<CallInst>(New)->setTailCall();
     }
+    New->setDebugLoc(Call->getDebugLoc());
     Args.clear();
     AttributesVec.clear();
 
diff --git a/llvm/test/Transforms/ArgumentPromotion/dbg.ll b/llvm/test/Transforms/ArgumentPromotion/dbg.ll
new file mode 100644
index 00000000000..a991bbc2212
--- /dev/null
+++ b/llvm/test/Transforms/ArgumentPromotion/dbg.ll
@@ -0,0 +1,17 @@
+; RUN: opt < %s -argpromotion -S | FileCheck %s
+; CHECK: call void @test(), !dbg !1
+target datalayout = "E-p:64:64:64-a0:0:8-f32:32:32-f64:64:64-i1:8:8-i8:8:8-i16:16:16-i32:32:32-i64:32:64-v64:64:64-v128:128:128"
+define internal void @test(i32* %X) {
+  ret void
+}
+
+define void @caller() {
+  call void @test(i32* null), !dbg !1
+  ret void
+}
+
+!llvm.module.flags = !{!3}
+
+!1 = metadata !{i32 8, i32 0, metadata !2, null}
+!2 = metadata !{}
+!3 = metadata !{i32 2, metadata !"Debug Info Version", i32 1}