Revert "Revert r234581, it might have caused a few miscompiles in Chromium."
This reverts commit r234700. It turns out that the lifetime markers
were not the cause of Chromium failing but a bug which was uncovered by
optimizations exposed by the markers.
llvm-svn: 235553
diff --git a/clang/test/CodeGen/lifetime-debuginfo-1.c b/clang/test/CodeGen/lifetime-debuginfo-1.c
new file mode 100644
index 0000000..5d83cbc
--- /dev/null
+++ b/clang/test/CodeGen/lifetime-debuginfo-1.c
@@ -0,0 +1,13 @@
+// RUN: %clang_cc1 -O1 -triple x86_64-none-linux-gnu -emit-llvm -gline-tables-only %s -o - | FileCheck %s
+
+// Inserting lifetime markers should not affect debuginfo
+
+extern int x;
+
+// CHECK-LABEL: define i32 @f
+int f() {
+ int *p = &x;
+// CHECK: ret i32 %{{.*}}, !dbg [[DI:![0-9]*]]
+// CHECK: [[DI]] = !MDLocation(line: [[@LINE+1]]
+ return *p;
+}