[cfe-commits] r72492 - in /cfe/trunk: lib/CodeGen/CGExprAgg.cpp test/CodeGenObjC/objc2-no-write-barrier.m

[Fariborz Jahanian]

Author: fjahanian
Date: Wed May 27 14:54:11 2009
New Revision: 72492

URL: http://llvm.org/viewvc/llvm-project?rev=72492&view=rev
Log:
No write-barrier for initializations.

Added:
    cfe/trunk/test/CodeGenObjC/objc2-no-write-barrier.m
Modified:
    cfe/trunk/lib/CodeGen/CGExprAgg.cpp

Modified: cfe/trunk/lib/CodeGen/CGExprAgg.cpp
URL: http://llvm.org/viewvc/llvm-project/cfe/trunk/lib/CodeGen/CGExprAgg.cpp?rev=72492&r1=72491&r2=72492&view=diff

==============================================================================
--- cfe/trunk/lib/CodeGen/CGExprAgg.cpp (original)
+++ cfe/trunk/lib/CodeGen/CGExprAgg.cpp Wed May 27 14:54:11 2009
@@ -459,6 +459,8 @@
 
     // FIXME: volatility
     LValue FieldLoc = CGF.EmitLValueForField(DestPtr, *Field, false, 0);
+    // We never generate write-barries for initialized fields.
+    LValue::SetObjCNonGC(FieldLoc, true);
     if (CurInitVal < NumInitElements) {
       // Store the initializer into the field
       EmitInitializationToLValue(E->getInit(CurInitVal++), FieldLoc);

Added: cfe/trunk/test/CodeGenObjC/objc2-no-write-barrier.m
URL: http://llvm.org/viewvc/llvm-project/cfe/trunk/test/CodeGenObjC/objc2-no-write-barrier.m?rev=72492&view=auto

==============================================================================
--- cfe/trunk/test/CodeGenObjC/objc2-no-write-barrier.m (added)
+++ cfe/trunk/test/CodeGenObjC/objc2-no-write-barrier.m Wed May 27 14:54:11 2009
@@ -0,0 +1,18 @@
+// RUN: clang-cc -triple x86_64-apple-darwin9 -fobjc-gc -emit-llvm -o %t %s &&
+// RUN: grep 'objc_assign' %t | count 0
+
+typedef struct {
+    int ival;
+    id submenu;
+} XCBinderContextMenuItem;
+
+id actionMenuForDataNode(void) {
+    XCBinderContextMenuItem menusToCreate[]  = {
+        {1, 0}
+    };
+    return 0;
+}
+
+XCBinderContextMenuItem GmenusToCreate[]  = {
+        {1, 0}
+};