Vendor import of clang trunk r126079:

http://llvm.org/svn/llvm-project/cfe/trunk@126079

1 files changed, 43 insertions, 0 deletions

diff --git a/test/CodeGen/string-literal-short-wstring.c b/test/CodeGen/string-literal-short-wstring.c
new file mode 100644
index 0000000..8c2e412
--- /dev/null
+++ b/test/CodeGen/string-literal-short-wstring.c
@@ -0,0 +1,43 @@
+// RUN: %clang_cc1 -x c++ -emit-llvm -fshort-wchar %s -o - | FileCheck %s
+// Runs in c++ mode so that wchar_t is available.
+
+int main() {
+  // This should convert to utf8.
+  // CHECK: internal constant [10 x i8] c"\E1\84\A0\C8\A0\F4\82\80\B0\00", align 1
+  char b[10] = "\u1120\u0220\U00102030";
+
+  // CHECK: private unnamed_addr constant [6 x i8] c"A\00B\00\00\00"
+  const wchar_t *foo = L"AB";
+
+  // This should convert to utf16.
+  // CHECK: private unnamed_addr constant [10 x i8] c" \11 \02\C8\DB0\DC\00\00"
+  const wchar_t *bar = L"\u1120\u0220\U00102030";
+
+
+
+  // Should pick second character.
+  // CHECK: store i8 98
+  char c = 'ab';
+
+  // CHECK: store i16 97
+  wchar_t wa = L'a';
+
+  // Should pick second character.
+  // CHECK: store i16 98
+  wchar_t wb = L'ab';
+
+  // -4085 == 0xf00b
+  // CHECK: store i16 -4085
+  wchar_t wc = L'\uF00B';
+
+  // Should take lower word of the 4byte UNC sequence. This does not match
+  // gcc. I don't understand what gcc does (it looks like it converts to utf16,
+  // then takes the second (!) utf16 word, swaps the lower two nibbles, and
+  // stores that?).
+  // CHECK: store i16 -4085
+  wchar_t wd = L'\U0010F00B';  // has utf16 encoding dbc8 dcb0
+
+  // Should pick second character. (gcc: -9205)
+  // CHECK: store i16 -4085
+  wchar_t we = L'\u1234\U0010F00B';
+}