Rework the way we determine whether an externally visible symbol is

generated for an inline function definition, taking into account C99
and GNU inline/extern inline semantics. This solution is simpler,
cleaner, and fixes PR4536.

llvm-svn: 81670

1 files changed, 62 insertions, 0 deletions

diff --git a/clang/test/CodeGen/inline2.c b/clang/test/CodeGen/inline2.c
new file mode 100644
index 000000000000..6f165f50f8b7
--- /dev/null
+++ b/clang/test/CodeGen/inline2.c
@@ -0,0 +1,62 @@
+// RUN: clang-cc -std=gnu89 -triple i386-apple-darwin9 -emit-llvm %s -o - | FileCheck -check-prefix GNU89 %s &&
+// RUN: clang-cc -std=c99 -triple i386-apple-darwin9 -emit-llvm %s -o - | FileCheck -check-prefix C99 %s
+
+// CHECK-GNU89: define i32 @f0()
+// CHECK-C99: define i32 @f0()
+int f0(void);
+int f0(void) { return 0; }
+
+// CHECK-GNU89: define i32 @f1()
+// CHECK-C99: define i32 @f1()
+inline int f1(void);
+int f1(void) { return 0; }
+
+// CHECK-GNU89: define i32 @f2()
+// CHECK-C99: define i32 @f2()
+int f2(void);
+inline int f2(void) { return 0; }
+
+// CHECK-GNU89: define i32 @f3()
+// CHECK-C99: define i32 @f3()
+extern inline int f3(void);
+int f3(void) { return 0; }
+
+// CHECK-GNU89: define i32 @f5()
+// CHECK-C99: define i32 @f5()
+extern inline int f5(void);
+inline int f5(void) { return 0; }
+
+// CHECK-GNU89: define i32 @f6()
+// CHECK-C99: define i32 @f6()
+inline int f6(void);
+extern inline int f6(void) { return 0; }
+
+// CHECK-GNU89: define i32 @f7()
+// CHECK-C99: define i32 @f7()
+extern inline int f7(void);
+extern int f7(void) { return 0; }
+
+// CHECK-GNU89: define i32 @fA()
+inline int fA(void) { return 0; }
+
+// CHECK-GNU89: define available_externally i32 @f4()
+// CHECK-C99: define i32 @f4()
+int f4(void);
+extern inline int f4(void) { return 0; }
+
+// CHECK-GNU89: define available_externally i32 @f8()
+// CHECK-C99: define i32 @f8()
+extern int f8(void);
+extern inline int f8(void) { return 0; }
+
+// CHECK-GNU89: define available_externally i32 @f9()
+// CHECK-C99: define i32 @f9()
+extern inline int f9(void);
+extern inline int f9(void) { return 0; }
+
+// CHECK-C99: define available_externally i32 @fA()
+
+int test_all() { 
+  return f0() + f1() + f2() + f3() + f4() + f5() + f6() + f7() + f8() + f9() 
+    + fA();
+}