Add the clang library to the repo (with some of my changes, too).

1 files changed, 74 insertions, 0 deletions

diff --git a/clang/test/CodeGen/mangle.c b/clang/test/CodeGen/mangle.c
new file mode 100644
index 0000000..46ef512
--- /dev/null
+++ b/clang/test/CodeGen/mangle.c
@@ -0,0 +1,74 @@
+// RUN: %clang_cc1 -triple i386-pc-linux-gnu -emit-llvm -o - %s | FileCheck %s
+
+// CHECK: @foo
+
+// Make sure we mangle overloadable, even in C system headers.
+# 1 "somesystemheader.h" 1 3 4
+// CHECK: @_Z2f0i
+void __attribute__((__overloadable__)) f0(int a) {}
+// CHECK: @_Z2f0l
+void __attribute__((__overloadable__)) f0(long b) {}
+
+// CHECK: @bar
+
+// These should get merged.
+void foo() __asm__("bar");
+void foo2() __asm__("bar");
+
+int nux __asm__("foo");
+extern float nux2 __asm__("foo");
+
+int test() { 
+  foo();
+  foo2();
+  
+  return nux + nux2;
+}
+
+
+// Function becomes a variable.
+void foo3() __asm__("var");
+
+void test2() {
+  foo3();
+}
+int foo4 __asm__("var") = 4;
+
+
+// Variable becomes a function
+extern int foo5 __asm__("var2");
+
+void test3() {
+  foo5 = 1;
+}
+
+void foo6() __asm__("var2");
+void foo6() {
+}
+
+
+
+int foo7 __asm__("foo7") __attribute__((used));
+float foo8 __asm__("foo7") = 42;
+
+// PR4412
+int func(void);
+extern int func (void) __asm__ ("FUNC");
+
+// CHECK: @FUNC
+int func(void) {
+  return 42;
+}
+
+// CHECK: @_Z4foo9Dv4_f
+typedef __attribute__(( vector_size(16) )) float float4;
+void __attribute__((__overloadable__)) foo9(float4 f) {}
+
+// Intrinsic calls.
+extern int llvm_cas(volatile int*, int, int)
+  __asm__("llvm.atomic.cmp.swap.i32.p0i32");
+
+int foo10(volatile int* add, int from, int to) {
+  // CHECK: call i32 @llvm.atomic.cmp.swap.i32.p0i32
+  return llvm_cas(add, from, to);
+}