From f0dc11ad7f5ca007636a3e6fdc69adf878768bc3 Mon Sep 17 00:00:00 2001
From: Fariborz Jahanian <fjahanian@apple.com>
Date: Tue, 4 Jun 2013 16:04:37 +0000
Subject: [PATCH] Objective-C encoding. Fixes up encodeing for arrays of empty
 structs. // rdar://14053082 (also pr13062).

llvm-svn: 183234
---
 clang/lib/AST/ASTContext.cpp         | 9 +++------
 clang/test/CodeGenObjC/encode-test.m | 2 +-
 2 files changed, 4 insertions(+), 7 deletions(-)

diff --git a/clang/lib/AST/ASTContext.cpp b/clang/lib/AST/ASTContext.cpp
index 333e80be3067..1f89e3f1f69a 100644
--- a/clang/lib/AST/ASTContext.cpp
+++ b/clang/lib/AST/ASTContext.cpp
@@ -5242,12 +5242,9 @@ void ASTContext::getObjCEncodingForTypeImpl(QualType T, std::string& S,
     } else {
       S += '[';
 
-      if (const ConstantArrayType *CAT = dyn_cast<ConstantArrayType>(AT)) {
-        if (getTypeSize(CAT->getElementType()) == 0)
-          S += '0';
-        else
-          S += llvm::utostr(CAT->getSize().getZExtValue());
-      } else {
+      if (const ConstantArrayType *CAT = dyn_cast<ConstantArrayType>(AT))
+        S += llvm::utostr(CAT->getSize().getZExtValue());
+      else {
         //Variable length arrays are encoded as a regular array with 0 elements.
         assert((isa<VariableArrayType>(AT) || isa<IncompleteArrayType>(AT)) &&
                "Unknown array type!");
diff --git a/clang/test/CodeGenObjC/encode-test.m b/clang/test/CodeGenObjC/encode-test.m
index e8d65413740d..d6e7b6dfccad 100644
--- a/clang/test/CodeGenObjC/encode-test.m
+++ b/clang/test/CodeGenObjC/encode-test.m
@@ -159,7 +159,7 @@ struct f
   int tt;
 };
 
-// CHECK: @g10 = constant [14 x i8] c"{f=i[0{?=}]i}\00"
+// CHECK: @g10 = constant [14 x i8] c"{f=i[4{?=}]i}\00"
 const char g10[] = @encode(struct f);
 
 // rdar://9622422