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| author | Bill Wendling <isanbard@gmail.com> | 2012-01-10 08:46:39 +0000 |
|---|---|---|
| committer | Bill Wendling <isanbard@gmail.com> | 2012-01-10 08:46:39 +0000 |
| commit | 1bf7a3fcc4e2ad30688f7b0db464ad1ccabe77e2 (patch) | |
| tree | dd5cabf9dba41214b2dcc602b703c343c12b77ed /test/CodeGen/cfstring.c | |
| parent | 7ead5c7b6fd48cf549e55b4db499c26ecf88ae75 (diff) | |
The `-fwritable-strings' flag doesn't make the backing store strings of all
CFStrings writable.
The strings (both Unicode and ASCII) should reside in a read-only section. E.g.,
__TEXT,__cstring instead of __DATA,__data. This is done by making the global
variable created for the strings constant despite the value of that flag.
<rdar://problem/10657500>
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@147845 91177308-0d34-0410-b5e6-96231b3b80d8
Diffstat (limited to 'test/CodeGen/cfstring.c')
| -rw-r--r-- | test/CodeGen/cfstring.c | 10 |
1 files changed, 10 insertions, 0 deletions
diff --git a/test/CodeGen/cfstring.c b/test/CodeGen/cfstring.c index 1f0977f039..9d98b56e6b 100644 --- a/test/CodeGen/cfstring.c +++ b/test/CodeGen/cfstring.c @@ -1,4 +1,14 @@ // RUN: %clang_cc1 -emit-llvm %s -o %t + +// <rdar://problem/10657500>: Check that the backing store of CFStrings are +// constant with the -fwritable-strings flag. +// +// RUN: %clang_cc1 -fwritable-strings -emit-llvm %s -o - | FileCheck %s +// +// CHECK: @.str = linker_private unnamed_addr constant [14 x i8] c"Hello, World!\00", align 1 +// CHECK: @.str1 = linker_private unnamed_addr constant [7 x i8] c"yo joe\00", align 1 +// CHECK: @.str3 = linker_private unnamed_addr constant [16 x i8] c"Goodbye, World!\00", align 1 + #define CFSTR __builtin___CFStringMakeConstantString void f() { |