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-rw-r--r--clang/test/CodeGenCXX/convert-to-fptr.cpp47
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
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+++ b/clang/test/CodeGenCXX/convert-to-fptr.cpp
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+// 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
+