Merge branch 'master' of ssh://bitbucket.org/czan/honours

1 files changed, 47 insertions, 0 deletions

diff --git a/clang/test/CodeGenCXX/convert-to-fptr.cpp b/clang/test/CodeGenCXX/convert-to-fptr.cpp
new file mode 100644
index 0000000..425f79d
--- /dev/null
+++ b/clang/test/CodeGenCXX/convert-to-fptr.cpp
@@ -0,0 +1,47 @@
+// REQUIRES: x86-registered-target,x86-64-registered-target
+// RUN: %clang_cc1 -triple x86_64-apple-darwin -std=c++11 -S %s -o %t-64.s
+// RUN: FileCheck -check-prefix LP64 --input-file=%t-64.s %s
+// RUN: %clang_cc1 -triple i386-apple-darwin -std=c++11 -S %s -o %t-32.s
+// RUN: FileCheck -check-prefix LP32 --input-file=%t-32.s %s
+
+extern "C" int printf(...);
+
+int f1(int arg)  { return arg; }; 
+
+int f2(float arg) { return int(arg); }; 
+
+typedef int (*fp1)(int); 
+
+typedef int (*fp2)(float); 
+
+struct A {
+  operator fp1() { return f1; }
+  operator fp2() { return f2; } 
+} a;
+
+
+// Test for function reference.
+typedef int (&fr1)(int); 
+typedef int (&fr2)(float); 
+
+struct B {
+  operator fr1() { return f1; }
+  operator fr2() { return f2; } 
+} b;
+
+int main()
+{
+ int i = a(10); // Calls f1 via pointer returned from conversion function
+ printf("i = %d\n", i);
+
+ int j = b(20); // Calls f1 via pointer returned from conversion function
+ printf("j = %d\n", j);
+ return 0;
+}
+
+// CHECK-LP64: callq __ZN1AcvPFiiEEv
+// CHECK-LP64: callq __ZN1BcvRFiiEEv
+
+// CHECK-LP32: calll L__ZN1AcvPFiiEEv
+// CHECK-LP32: calll L__ZN1BcvRFiiEEv
+