Allow 'nodebug' on local variables.

Parameters and non-static members of aggregates are still excluded,
and probably should remain that way.

Differential Revision: http://reviews.llvm.org/D19754

llvm-svn: 272859

3 files changed, 32 insertions, 3 deletions

diff --git a/clang/test/CodeGenCXX/debug-info-nodebug.cpp b/clang/test/CodeGenCXX/debug-info-nodebug.cpp
index 7a10e6708cc..9f140efaed6 100644
--- a/clang/test/CodeGenCXX/debug-info-nodebug.cpp
+++ b/clang/test/CodeGenCXX/debug-info-nodebug.cpp
@@ -44,9 +44,12 @@ void func3() {
 // YESINFO-DAG: !DIDerivedType({{.*}} name: "static_const_member"
 // NOINFO-NOT:  !DIDerivedType({{.*}} name: "static_const_member"
 
-// Function-local static variable.
+// Function-local static and auto variables.
 void func4() {
   NODEBUG static int static_local = 6;
+  NODEBUG        int normal_local = 7;
 }
 // YESINFO-DAG: !DIGlobalVariable(name: "static_local"
 // NOINFO-NOT:  !DIGlobalVariable(name: "static_local"
+// YESINFO-DAG: !DILocalVariable(name: "normal_local"
+// NOINFO-NOT:  !DILocalVariable(name: "normal_local"
diff --git a/clang/test/CodeGenObjC/debug-info-nodebug.m b/clang/test/CodeGenObjC/debug-info-nodebug.m
new file mode 100644
index 00000000000..42d630b4ac1
--- /dev/null
+++ b/clang/test/CodeGenObjC/debug-info-nodebug.m
@@ -0,0 +1,26 @@
+// RUN: %clang_cc1 -triple arm-apple-ios -emit-llvm -debug-info-kind=limited -fblocks  %s -o - | FileCheck %s
+// Objective-C code cargo-culted from debug-info-lifetime-crash.m.
+@protocol NSObject
+- (id)copy;
+@end
+@class W;
+@interface View1
+@end
+@implementation Controller {
+    void (^Block)(void);
+}
+- (void)View:(View1 *)View foo:(W *)W
+{
+  // The reference from inside the block implicitly creates another
+  // local variable for the referenced member. That is what gets
+  // suppressed by the attribute.  It still gets debug info as a
+  // member, though.
+  // CHECK-NOT: !DILocalVariable(name: "weakSelf"
+  // CHECK:     !DIDerivedType({{.*}} name: "weakSelf"
+  // CHECK-NOT: !DILocalVariable(name: "weakSelf"
+  __attribute__((nodebug)) __typeof(self) weakSelf = self;
+  Block = [^{
+    __typeof(self) strongSelf = weakSelf;
+    } copy];
+}
+@end
diff --git a/clang/test/Sema/attr-nodebug.c b/clang/test/Sema/attr-nodebug.c
index 39643bfb70d..e7ca58d3ba1 100644
--- a/clang/test/Sema/attr-nodebug.c
+++ b/clang/test/Sema/attr-nodebug.c
@@ -2,8 +2,8 @@
 
 int a __attribute__((nodebug));
 
-void b() {
-  int b __attribute__((nodebug)); // expected-warning {{'nodebug' attribute only applies to functions and global variables}}
+void b(int p __attribute__((nodebug))) { // expected-warning {{'nodebug' attribute only applies to variables and functions}}
+  int b __attribute__((nodebug));
 }
 
 void t1() __attribute__((nodebug));