vendor/clang/clang-r72732

1 files changed, 69 insertions, 0 deletions

diff --git a/test/CodeGen/function-attributes.c b/test/CodeGen/function-attributes.c
new file mode 100644
index 000000000000..ba2e4e4d564d
--- /dev/null
+++ b/test/CodeGen/function-attributes.c
@@ -0,0 +1,69 @@
+// RUN: clang-cc -triple i386-unknown-unknown -emit-llvm -o %t %s &&
+// RUN: grep 'define signext i8 @f0(i32 %x) nounwind' %t &&
+// RUN: grep 'define zeroext i8 @f1(i32 %x) nounwind' %t &&
+// RUN: grep 'define void @f2(i8 signext %x) nounwind' %t &&
+// RUN: grep 'define void @f3(i8 zeroext %x) nounwind' %t &&
+// RUN: grep 'define signext i16 @f4(i32 %x) nounwind' %t &&
+// RUN: grep 'define zeroext i16 @f5(i32 %x) nounwind' %t &&
+// RUN: grep 'define void @f6(i16 signext %x) nounwind' %t &&
+// RUN: grep 'define void @f7(i16 zeroext %x) nounwind' %t &&
+
+signed char f0(int x) { return x; }
+
+unsigned char f1(int x) { return x; }
+
+void f2(signed char x) { }
+
+void f3(unsigned char x) { }
+
+signed short f4(int x) { return x; }
+
+unsigned short f5(int x) { return x; }
+
+void f6(signed short x) { }
+
+void f7(unsigned short x) { }
+
+// RUN: grep 'define void @f8() nounwind alwaysinline' %t &&
+void __attribute__((always_inline)) f8(void) { }
+
+// RUN: grep 'call void @f9_t() noreturn' %t &&
+void __attribute__((noreturn)) f9_t(void);
+void f9(void) { f9_t(); }
+
+// FIXME: We should be setting nounwind on calls.
+// RUN: grep 'call i32 @f10_t() readnone' %t &&
+int __attribute__((const)) f10_t(void);
+int f10(void) { return f10_t(); }
+int f11(void) {
+ exit:
+  return f10_t();
+}
+int f12(int arg) {
+  return arg ? 0 : f10_t();
+}
+
+// RUN: grep 'define void @f13() nounwind readnone' %t &&
+void f13(void) __attribute__((pure)) __attribute__((const));
+void f13(void){}
+
+
+// Ensure that these get inlined: rdar://6853279
+// RUN: not grep '@ai_' %t &&
+static __inline__ __attribute__((always_inline))
+int ai_1() {  return 4; }
+
+static __inline__ __attribute__((always_inline))
+struct {
+  int a, b, c, d, e;
+} ai_2() { }
+
+
+int foo() {
+  ai_2();
+  return ai_1();
+}
+
+
+
+// RUN: true